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doc-en/features/dtrace.xml at master · php/doc-en · GitHub
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8.351a1.312 1.312 0 0 1-1.146 1.954H1.33A1.313 1.313 0 0 1 .183 9.058ZM7 7V3H5v4Zm-1 3a1 1 0 1 0 0-2 1 1 0 0 0 0 2Z"></path> </svg> </span> <span></span> </div> </div> <div data-target="query-builder.screenReaderFeedback" aria-live="polite" aria-atomic="true" class="sr-only"></div> </query-builder></form> <div class="d-flex flex-row color-fg-muted px-3 text-small color-bg-default search-feedback-prompt"> <a target="_blank" href="https://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax" data-view-component="true" class="Link color-fg-accent text-normal ml-2"> Search syntax tips </a> <div class="d-flex flex-1"></div> </div> </div> </div> </div> </modal-dialog></div> </div> <div data-action="click:qbsearch-input#retract" class="dark-backdrop position-fixed" hidden data-target="qbsearch-input.darkBackdrop"></div> <div class="color-fg-default"> <dialog-helper> <dialog data-target="qbsearch-input.feedbackDialog" 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3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg></button> </div> </div> </div> <scrollable-region data-labelled-by="feedback-dialog-title"> <div data-view-component="true" class="Overlay-body"> <!-- '"` --><!-- </textarea></xmp> --></option></form><form id="code-search-feedback-form" data-turbo="false" action="/search/feedback" accept-charset="UTF-8" method="post"><input type="hidden" data-csrf="true" name="authenticity_token" value="HUcr4b+2m3Q8XCFLDqTVT+jCf+ABGOu/EHThMWRzYyyVMOPEL3iHdofknPlcQyJORWlZSlc71SDHn6PVJ9Gbbw==" /> <p>We read every piece of feedback, and take your input very seriously.</p> <textarea name="feedback" class="form-control width-full mb-2" style="height: 120px" id="feedback"></textarea> <input name="include_email" id="include_email" aria-label="Include my email address so I can be contacted" class="form-control mr-2" type="checkbox"> <label for="include_email" style="font-weight: normal">Include my email address so I can be contacted</label> </form></div> </scrollable-region> <div data-view-component="true" class="Overlay-footer Overlay-footer--alignEnd"> <button data-close-dialog-id="feedback-dialog" type="button" data-view-component="true" class="btn"> Cancel </button> <button form="code-search-feedback-form" data-action="click:qbsearch-input#submitFeedback" type="submit" data-view-component="true" class="btn-primary btn"> Submit feedback </button> </div> </dialog></dialog-helper> <custom-scopes data-target="qbsearch-input.customScopesManager"> <dialog-helper> <dialog data-target="custom-scopes.customScopesModalDialog" data-action="close:qbsearch-input#handleDialogClose cancel:qbsearch-input#handleDialogClose" id="custom-scopes-dialog" aria-modal="true" aria-labelledby="custom-scopes-dialog-title" aria-describedby="custom-scopes-dialog-description" data-view-component="true" class="Overlay Overlay-whenNarrow 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version=\"1.0\" encoding=\"utf-8\"?\u003e","\u003c!-- $Revision$ --\u003e","\u003cchapter xml:id=\"features.dtrace\" xmlns=\"http://docbook.org/ns/docbook\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"\u003e"," \u003ctitle\u003eDTrace Dynamic Tracing\u003c/title\u003e",""," \u003csect1 xml:id=\"features.dtrace.introduction\"\u003e"," \u003ctitle\u003eIntroduction to PHP and DTrace\u003c/title\u003e",""," \u003cpara\u003e"," DTrace is an always-available, low overhead, tracing framework"," available on a number of platforms including Solaris, macOS,"," Oracle Linux and BSD. DTrace can trace operating system behavior"," and user program execution. It can display argument values and be"," used to infer performance statistics. Probes are monitored by user"," created scripts written in the DTrace D scripting language. This"," allows efficient analysis of data points."," \u003c/para\u003e",""," \u003cpara\u003e"," PHP probes that are not being actively monitored by a user's DTrace"," D script do not contain instrumented code so there is no"," performance degradation during normal application execution."," Probes that are being monitored incur an overhead low enough to"," generally allow DTrace monitoring on live production systems."," \u003c/para\u003e",""," \u003cpara\u003e"," PHP incorporates \"User-level Statically Defined Tracing\" (USDT)"," probes that are triggered at runtime. For example, when a D script"," is monitoring PHP's \u003cliteral\u003efunction-entry\u003c/literal\u003e probe, then,"," every time a PHP script function is called, this probe is fired and"," the associated D script action code is executed. This action code"," could, for example, print probe arguments such as the source file"," location of the PHP function. Or the action could aggregate data"," such as the number of times each function is called."," \u003c/para\u003e",""," \u003cpara\u003e"," Only the PHP USDT probes are described here. Refer to external"," general and operating system-specific DTrace literature to see how"," DTrace can be used to trace arbitrary functions, and how it can be"," used to trace operating system behavior. Note not all DTrace"," features are available in all DTrace implementations."," \u003c/para\u003e",""," \u003cpara\u003e"," The static DTrace probes in PHP can alternatively be used with the"," SystemTap facility on some Linux distributions."," \u003c/para\u003e"," \u003c/sect1\u003e",""," \u003csect1 xml:id=\"features.dtrace.dtrace\"\u003e"," \u003ctitle\u003eUsing PHP and DTrace\u003c/title\u003e"," \u003cpara\u003e"," PHP can be configured with DTrace static probes on platforms that"," support DTrace Dynamic Tracing."," \u003c/para\u003e",""," \u003csect2 xml:id=\"features.dtrace.install\"\u003e"," \u003ctitle\u003eConfiguring PHP for DTrace Static Probes\u003c/title\u003e",""," \u003cpara\u003e"," Refer to external platform specific documentation for enabling"," operating system DTrace support. For example, on Oracle Linux"," boot a UEK3 kernel and do:",""," \u003cinformalexample\u003e"," \u003cprogramlisting role=\"php\"\u003e","\u003c![CDATA[","# modprobe fasttrap","# chmod 666 /dev/dtrace/helper","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e"," \u003cpara\u003e"," Instead of using \u003cliteral\u003echmod\u003c/literal\u003e, you could instead use an"," ACL package rule to limit device access to a specific user."," \u003c/para\u003e",""," \u003cpara\u003e"," Build PHP with the \u003cliteral\u003e--enable-dtrace\u003c/literal\u003e configuration parameter:"," \u003cinformalexample\u003e"," \u003cprogramlisting role=\"php\"\u003e","\u003c![CDATA[","# ./configure --enable-dtrace ...","# make","# make install","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e"," \u003cpara\u003e"," This enables the static probes in core PHP. Any PHP extensions"," that provide their own probes should be built separately as shared"," extensions."," \u003c/para\u003e"," \u003c/sect2\u003e",""," \u003csect2 xml:id=\"features.dtrace.static-probes\"\u003e"," \u003ctitle\u003eDTrace Static Probes in Core PHP\u003c/title\u003e"," \u003ctable\u003e"," \u003ctitle\u003eThe following static probes are available in PHP\u003c/title\u003e"," \u003ctgroup cols=\"2\"\u003e"," \u003cthead\u003e"," \u003crow\u003e"," \u003centry\u003eProbe Name\u003c/entry\u003e"," \u003centry\u003eProbe Description\u003c/entry\u003e"," \u003centry\u003eProbe Arguments\u003c/entry\u003e"," \u003c/row\u003e"," \u003c/thead\u003e"," \u003ctbody\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003erequest-startup\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when a request starts.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003efile\u003c/varname\u003e, char *\u003cvarname\u003erequest_uri\u003c/varname\u003e, char *\u003cvarname\u003erequest_method\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003erequest-shutdown\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when a request shutdown.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003efile\u003c/varname\u003e, char *\u003cvarname\u003erequest_uri\u003c/varname\u003e, char *\u003cvarname\u003erequest_method\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003ecompile-file-entry\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when the compilation of a script starts.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003ecompile_file\u003c/varname\u003e, char *\u003cvarname\u003ecompile_file_translated\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003ecompile-file-return\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when the compilation of a script finishes.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003ecompile_file\u003c/varname\u003e, char *\u003cvarname\u003ecompile_file_translated\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003eexecute-entry\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when an opcode array is to be executed. For"," example, it fires on function calls, includes, and generator"," resumes.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003erequest_file\u003c/varname\u003e, int \u003cvarname\u003elineno\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003eexecute-return\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires after execution of an opcode array.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003erequest_file\u003c/varname\u003e, int \u003cvarname\u003elineno\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003efunction-entry\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when the PHP engine enters a PHP function or method call.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003efunction_name\u003c/varname\u003e, char *\u003cvarname\u003erequest_file\u003c/varname\u003e, int \u003cvarname\u003elineno\u003c/varname\u003e, char *\u003cvarname\u003eclassname\u003c/varname\u003e, char *\u003cvarname\u003escope\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003efunction-return\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when the PHP engine returns from a PHP function or method call.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003efunction_name\u003c/varname\u003e, char *\u003cvarname\u003erequest_file\u003c/varname\u003e, int \u003cvarname\u003elineno\u003c/varname\u003e, char *\u003cvarname\u003eclassname\u003c/varname\u003e, char *\u003cvarname\u003escope\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003eexception-thrown\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when an exception is thrown.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003eclassname\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003eexception-caught\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when an exception is caught.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003eclassname\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003crow\u003e"," \u003centry\u003e\u003cliteral\u003eerror\u003c/literal\u003e\u003c/entry\u003e"," \u003centry\u003eFires when an error occurs, regardless of the \u003clink linkend=\"ini.error-reporting\"\u003eerror_reporting\u003c/link\u003e level.\u003c/entry\u003e"," \u003centry\u003echar *\u003cvarname\u003eerrormsg\u003c/varname\u003e, char *\u003cvarname\u003erequest_file\u003c/varname\u003e, int \u003cvarname\u003elineno\u003c/varname\u003e\u003c/entry\u003e"," \u003c/row\u003e"," \u003c/tbody\u003e"," \u003c/tgroup\u003e"," \u003c/table\u003e"," \u003cpara\u003e"," PHP extensions may also have additional static probes."," \u003c/para\u003e"," \u003c/sect2\u003e",""," \u003csect2 xml:id=\"features.dtrace.list-probes\"\u003e"," \u003ctitle\u003eListing DTrace Static Probes in PHP\u003c/title\u003e"," \u003cpara\u003e"," To list available probes, start a PHP process and then run:"," \u003cinformalexample\u003e"," \u003cprogramlisting\u003e","\u003c![CDATA[","# dtrace -l","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e",""," \u003cpara\u003e"," The output will be similar to:"," \u003cinformalexample\u003e"," \u003cprogramlisting\u003e","\u003c![CDATA["," ID PROVIDER MODULE FUNCTION NAME"," [ . . . ]"," 4 php15271 php dtrace_compile_file compile-file-entry"," 5 php15271 php dtrace_compile_file compile-file-return"," 6 php15271 php zend_error error"," 7 php15271 php ZEND_CATCH_SPEC_CONST_CV_HANDLER exception-caught"," 8 php15271 php zend_throw_exception_internal exception-thrown"," 9 php15271 php dtrace_execute_ex execute-entry"," 10 php15271 php dtrace_execute_internal execute-entry"," 11 php15271 php dtrace_execute_ex execute-return"," 12 php15271 php dtrace_execute_internal execute-return"," 13 php15271 php dtrace_execute_ex function-entry"," 14 php15271 php dtrace_execute_ex function-return"," 15 php15271 php php_request_shutdown request-shutdown"," 16 php15271 php php_request_startup request-startup","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e",""," \u003cpara\u003e"," The Provider column values consist of \u003cliteral\u003ephp\u003c/literal\u003e and"," the process id of the currently running PHP process."," \u003c/para\u003e",""," \u003cpara\u003e"," If the Apache web server is running, the module name might be, for"," example, \u003cfilename\u003elibphp5.so\u003c/filename\u003e, and there would be"," multiple blocks of listings, one per running Apache process."," \u003c/para\u003e",""," \u003cpara\u003e"," The Function column refers to PHP's internal C implementation"," function names where each provider is located."," \u003c/para\u003e",""," \u003cpara\u003e"," If a PHP process is not running, then no PHP probes will be shown."," \u003c/para\u003e"," \u003c/sect2\u003e",""," \u003csect2 xml:id=\"features.dtrace.examples\"\u003e"," \u003ctitle\u003eDTrace with PHP Example\u003c/title\u003e"," \u003cpara\u003e"," This example shows the basics of the DTrace D scripting language."," \u003cexample\u003e"," \u003ctitle\u003e\u003cfilename\u003eall_probes.d\u003c/filename\u003e for tracing all PHP Static Probes with DTrace\u003c/title\u003e"," \u003cprogramlisting\u003e","\u003c![CDATA[","#!/usr/sbin/dtrace -Zs","","#pragma D option quiet","","php*:::compile-file-entry","{"," printf(\"PHP compile-file-entry\\n\");"," printf(\" compile_file %s\\n\", copyinstr(arg0));"," printf(\" compile_file_translated %s\\n\", copyinstr(arg1));","}","","php*:::compile-file-return","{"," printf(\"PHP compile-file-return\\n\");"," printf(\" compile_file %s\\n\", copyinstr(arg0));"," printf(\" compile_file_translated %s\\n\", copyinstr(arg1));","}","","php*:::error","{"," printf(\"PHP error\\n\");"," printf(\" errormsg %s\\n\", copyinstr(arg0));"," printf(\" request_file %s\\n\", copyinstr(arg1));"," printf(\" lineno %d\\n\", (int)arg2);","}","","php*:::exception-caught","{"," printf(\"PHP exception-caught\\n\");"," printf(\" classname %s\\n\", copyinstr(arg0));","}","","php*:::exception-thrown","{"," printf(\"PHP exception-thrown\\n\");"," printf(\" classname %s\\n\", copyinstr(arg0));","}","","php*:::execute-entry","{"," printf(\"PHP execute-entry\\n\");"," printf(\" request_file %s\\n\", copyinstr(arg0));"," printf(\" lineno %d\\n\", (int)arg1);","}","","php*:::execute-return","{"," printf(\"PHP execute-return\\n\");"," printf(\" request_file %s\\n\", copyinstr(arg0));"," printf(\" lineno %d\\n\", (int)arg1);","}","","php*:::function-entry","{"," printf(\"PHP function-entry\\n\");"," printf(\" function_name %s\\n\", copyinstr(arg0));"," printf(\" request_file %s\\n\", copyinstr(arg1));"," printf(\" lineno %d\\n\", (int)arg2);"," printf(\" classname %s\\n\", copyinstr(arg3));"," printf(\" scope %s\\n\", copyinstr(arg4));","}","","php*:::function-return","{"," printf(\"PHP function-return\\n\");"," printf(\" function_name %s\\n\", copyinstr(arg0));"," printf(\" request_file %s\\n\", copyinstr(arg1));"," printf(\" lineno %d\\n\", (int)arg2);"," printf(\" classname %s\\n\", copyinstr(arg3));"," printf(\" scope %s\\n\", copyinstr(arg4));","}","","php*:::request-shutdown","{"," printf(\"PHP request-shutdown\\n\");"," printf(\" file %s\\n\", copyinstr(arg0));"," printf(\" request_uri %s\\n\", copyinstr(arg1));"," printf(\" request_method %s\\n\", copyinstr(arg2));","}","","php*:::request-startup","{"," printf(\"PHP request-startup\\n\");"," printf(\" file %s\\n\", copyinstr(arg0));"," printf(\" request_uri %s\\n\", copyinstr(arg1));"," printf(\" request_method %s\\n\", copyinstr(arg2));","}","]]\u003e"," \u003c/programlisting\u003e"," \u003c/example\u003e"," \u003c/para\u003e",""," \u003cpara\u003e"," This script uses the \u003cliteral\u003e-Z\u003c/literal\u003e option to"," \u003cfilename\u003edtrace\u003c/filename\u003e, allowing it to be run when there is no"," PHP process executing. If this option were omitted the script"," would immediately terminate because it knows none of the probes to"," be monitored are in existence."," \u003c/para\u003e",""," \u003cpara\u003e"," The script traces all core PHP static probe points throughout the"," duration of a running PHP script. Run the D script:"," \u003cinformalexample\u003e"," \u003cprogramlisting\u003e","\u003c![CDATA[","# ./all_probes.d","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e",""," \u003cpara\u003e"," Run a PHP script or application. The monitoring D script will"," output each probe's arguments as it fires."," \u003c/para\u003e",""," \u003cpara\u003e"," When monitoring is complete, the D script can be terminated with a"," \u003ckeycombo action='simul'\u003e\u003ckeycap\u003eCTRL\u003c/keycap\u003e\u003ckeycap\u003eC\u003c/keycap\u003e\u003c/keycombo\u003e."," \u003c/para\u003e",""," \u003cpara\u003e"," On multi-CPU machines the probe ordering might not appear to be"," sequential. This depends on which CPU was processing the probes,"," and how threads migrate across CPUs. Displaying probe time stamps"," will help reduce confusion, for example:"," \u003cinformalexample\u003e"," \u003cprogramlisting\u003e","\u003c![CDATA[","php*:::function-entry","{"," printf(\"%lld: PHP function-entry \", walltimestamp);"," [ . . .]","}","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e"," \u003c/sect2\u003e",""," \u003csect2 xml:id=\"features.dtrace.references\"\u003e"," \u0026reftitle.seealso;"," \u003csimplelist\u003e"," \u003cmember\u003e\u003clink linkend=\"oci8.dtrace\"\u003eOCI8 and DTrace Dynamic Tracing\u003c/link\u003e\u003c/member\u003e"," \u003c/simplelist\u003e"," \u003c/sect2\u003e"," \u003c/sect1\u003e",""," \u003csect1 xml:id=\"features.dtrace.systemtap\"\u003e"," \u003ctitle\u003eUsing SystemTap with PHP DTrace Static Probes\u003c/title\u003e"," \u003cpara\u003e"," On some Linux distributions, the SystemTap tracing utility can be"," used to trace PHP's static DTrace probes. This is available with"," PHP 5.4.20 and PHP 5.5."," \u003c/para\u003e",""," \u003csect2 xml:id=\"features.dtrace.systemtap-install\"\u003e"," \u003ctitle\u003eInstalling PHP with SystemTap\u003c/title\u003e",""," \u003cpara\u003e"," Install the SystemTap SDT development package:"," \u003cinformalexample\u003e"," \u003cprogramlisting role=\"shell\"\u003e","\u003c![CDATA[","# yum install systemtap-sdt-devel","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e",""," \u003cpara\u003e"," Install PHP with the DTrace probes enabled:"," \u003cinformalexample\u003e"," \u003cprogramlisting role=\"shell\"\u003e","\u003c![CDATA[","# ./configure --enable-dtrace ...","# make","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e"," \u003c/sect2\u003e",""," \u003csect2 xml:id=\"features.dtrace.systemtap-list-probes\"\u003e"," \u003ctitle\u003eListing Static Probes with SystemTap\u003c/title\u003e",""," \u003cpara\u003e"," The static probes in PHP can be listed using \u003cfilename\u003estap\u003c/filename\u003e:"," \u003cinformalexample\u003e"," \u003cprogramlisting\u003e","\u003c![CDATA[","# stap -l 'process.provider(\"php\").mark(\"*\")' -c 'sapi/cli/php -i'","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e",""," \u003cpara\u003e"," This outputs:"," \u003cinformalexample\u003e"," \u003cprogramlisting\u003e","\u003c![CDATA[","process(\"sapi/cli/php\").provider(\"php\").mark(\"compile__file__entry\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"compile__file__return\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"error\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"exception__caught\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"exception__thrown\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"execute__entry\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"execute__return\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"function__entry\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"function__return\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"request__shutdown\")","process(\"sapi/cli/php\").provider(\"php\").mark(\"request__startup\")","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e"," \u003c/sect2\u003e",""," \u003csect2 xml:id=\"features.dtrace.systemtap-examples\"\u003e"," \u003ctitle\u003eSystemTap with PHP Example\u003c/title\u003e",""," \u003cpara\u003e"," \u003cexample\u003e"," \u003ctitle\u003e\u003cfilename\u003eall_probes.stp\u003c/filename\u003e for tracing all PHP Static Probes with SystemTap\u003c/title\u003e"," \u003cprogramlisting role=\"shell\"\u003e","\u003c![CDATA[","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"compile__file__entry\") {"," printf(\"Probe compile__file__entry\\n\");"," printf(\" compile_file %s\\n\", user_string($arg1));"," printf(\" compile_file_translated %s\\n\", user_string($arg2));","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"compile__file__return\") {"," printf(\"Probe compile__file__return\\n\");"," printf(\" compile_file %s\\n\", user_string($arg1));"," printf(\" compile_file_translated %s\\n\", user_string($arg2));","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"error\") {"," printf(\"Probe error\\n\");"," printf(\" errormsg %s\\n\", user_string($arg1));"," printf(\" request_file %s\\n\", user_string($arg2));"," printf(\" lineno %d\\n\", $arg3);","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"exception__caught\") {"," printf(\"Probe exception__caught\\n\");"," printf(\" classname %s\\n\", user_string($arg1));","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"exception__thrown\") {"," printf(\"Probe exception__thrown\\n\");"," printf(\" classname %s\\n\", user_string($arg1));","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"execute__entry\") {"," printf(\"Probe execute__entry\\n\");"," printf(\" request_file %s\\n\", user_string($arg1));"," printf(\" lineno %d\\n\", $arg2);","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"execute__return\") {"," printf(\"Probe execute__return\\n\");"," printf(\" request_file %s\\n\", user_string($arg1));"," printf(\" lineno %d\\n\", $arg2);","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"function__entry\") {"," printf(\"Probe function__entry\\n\");"," printf(\" function_name %s\\n\", user_string($arg1));"," printf(\" request_file %s\\n\", user_string($arg2));"," printf(\" lineno %d\\n\", $arg3);"," printf(\" classname %s\\n\", user_string($arg4));"," printf(\" scope %s\\n\", user_string($arg5));","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"function__return\") {"," printf(\"Probe function__return: %s\\n\", user_string($arg1));"," printf(\" function_name %s\\n\", user_string($arg1));"," printf(\" request_file %s\\n\", user_string($arg2));"," printf(\" lineno %d\\n\", $arg3);"," printf(\" classname %s\\n\", user_string($arg4));"," printf(\" scope %s\\n\", user_string($arg5));","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"request__shutdown\") {"," printf(\"Probe request__shutdown\\n\");"," printf(\" file %s\\n\", user_string($arg1));"," printf(\" request_uri %s\\n\", user_string($arg2));"," printf(\" request_method %s\\n\", user_string($arg3));","}","probe process(\"sapi/cli/php\").provider(\"php\").mark(\"request__startup\") {"," printf(\"Probe request__startup\\n\");"," printf(\" file %s\\n\", user_string($arg1));"," printf(\" request_uri %s\\n\", user_string($arg2));"," printf(\" request_method %s\\n\", user_string($arg3));","}","]]\u003e"," \u003c/programlisting\u003e"," \u003c/example\u003e"," \u003c/para\u003e"," \u003cpara\u003e"," The above script will trace all core PHP static probe points"," throughout the duration of a running PHP script:"," \u003cinformalexample\u003e"," \u003cprogramlisting\u003e","\u003c![CDATA[","# stap -c 'sapi/cli/php test.php' all_probes.stp","]]\u003e"," \u003c/programlisting\u003e"," \u003c/informalexample\u003e"," \u003c/para\u003e"," \u003c/sect2\u003e"," \u003c/sect1\u003e","\u003c/chapter\u003e","","\u003c!-- Keep this comment at the end of the file","vim600: syn=xml fen fdm=syntax fdl=2 si","vim: et tw=78 syn=sgml","vi: ts=1 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data-line-number="498" class="react-line-number react-code-text" style="padding-right:16px">498</div><div data-line-number="499" class="react-line-number react-code-text" style="padding-right:16px">499</div><div data-line-number="500" class="react-line-number react-code-text" style="padding-right:16px">500</div><div data-line-number="501" class="react-line-number react-code-text" style="padding-right:16px">501</div><div data-line-number="502" class="react-line-number react-code-text" style="padding-right:16px">502</div><div data-line-number="503" class="react-line-number react-code-text" style="padding-right:16px">503</div><div data-line-number="504" class="react-line-number react-code-text" style="padding-right:16px">504</div><div data-line-number="505" class="react-line-number react-code-text" style="padding-right:16px">505</div><div data-line-number="506" class="react-line-number react-code-text" style="padding-right:16px">506</div><div data-line-number="507" class="react-line-number react-code-text" style="padding-right:16px">507</div><div data-line-number="508" class="react-line-number react-code-text" style="padding-right:16px">508</div><div data-line-number="509" class="react-line-number react-code-text" style="padding-right:16px">509</div><div data-line-number="510" class="react-line-number react-code-text" style="padding-right:16px">510</div><div data-line-number="511" class="react-line-number react-code-text" style="padding-right:16px">511</div><div data-line-number="512" class="react-line-number react-code-text" style="padding-right:16px">512</div><div data-line-number="513" class="react-line-number react-code-text" style="padding-right:16px">513</div><div data-line-number="514" class="react-line-number react-code-text" style="padding-right:16px">514</div><div data-line-number="515" class="react-line-number react-code-text" style="padding-right:16px">515</div><div data-line-number="516" class="react-line-number react-code-text" style="padding-right:16px">516</div><div data-line-number="517" class="react-line-number react-code-text" style="padding-right:16px">517</div><div data-line-number="518" class="react-line-number react-code-text" style="padding-right:16px">518</div><div data-line-number="519" class="react-line-number react-code-text" style="padding-right:16px">519</div><div data-line-number="520" class="react-line-number react-code-text" style="padding-right:16px">520</div><div data-line-number="521" class="react-line-number react-code-text" style="padding-right:16px">521</div><div data-line-number="522" class="react-line-number react-code-text" style="padding-right:16px">522</div><div data-line-number="523" class="react-line-number react-code-text" style="padding-right:16px">523</div><div data-line-number="524" class="react-line-number react-code-text" style="padding-right:16px">524</div><div data-line-number="525" class="react-line-number react-code-text" style="padding-right:16px">525</div><div data-line-number="526" class="react-line-number react-code-text" style="padding-right:16px">526</div><div data-line-number="527" class="react-line-number react-code-text" style="padding-right:16px">527</div><div data-line-number="528" class="react-line-number react-code-text" style="padding-right:16px">528</div><div data-line-number="529" class="react-line-number react-code-text" style="padding-right:16px">529</div><div data-line-number="530" class="react-line-number react-code-text" style="padding-right:16px">530</div><div data-line-number="531" class="react-line-number react-code-text" style="padding-right:16px">531</div><div data-line-number="532" class="react-line-number react-code-text" style="padding-right:16px">532</div><div data-line-number="533" class="react-line-number react-code-text" style="padding-right:16px">533</div><div data-line-number="534" class="react-line-number react-code-text" style="padding-right:16px">534</div><div data-line-number="535" class="react-line-number react-code-text" style="padding-right:16px">535</div><div data-line-number="536" class="react-line-number react-code-text" style="padding-right:16px">536</div><div data-line-number="537" class="react-line-number react-code-text" style="padding-right:16px">537</div><div data-line-number="538" class="react-line-number react-code-text" style="padding-right:16px">538</div><div data-line-number="539" class="react-line-number react-code-text" style="padding-right:16px">539</div><div data-line-number="540" class="react-line-number react-code-text" style="padding-right:16px">540</div><div data-line-number="541" class="react-line-number react-code-text" style="padding-right:16px">541</div><div data-line-number="542" class="react-line-number react-code-text" style="padding-right:16px">542</div><div data-line-number="543" class="react-line-number react-code-text" style="padding-right:16px">543</div><div data-line-number="544" class="react-line-number react-code-text" style="padding-right:16px">544</div><div data-line-number="545" class="react-line-number react-code-text" style="padding-right:16px">545</div><div data-line-number="546" class="react-line-number react-code-text" style="padding-right:16px">546</div><div data-line-number="547" class="react-line-number react-code-text" style="padding-right:16px">547</div><div data-line-number="548" class="react-line-number react-code-text" style="padding-right:16px">548</div><div data-line-number="549" class="react-line-number react-code-text" style="padding-right:16px">549</div><div data-line-number="550" class="react-line-number react-code-text" style="padding-right:16px">550</div><div data-line-number="551" class="react-line-number react-code-text" style="padding-right:16px">551</div><div data-line-number="552" class="react-line-number react-code-text" style="padding-right:16px">552</div><div data-line-number="553" class="react-line-number react-code-text" style="padding-right:16px">553</div><div data-line-number="554" class="react-line-number react-code-text" style="padding-right:16px">554</div><div data-line-number="555" class="react-line-number react-code-text" style="padding-right:16px">555</div><div data-line-number="556" class="react-line-number react-code-text" style="padding-right:16px">556</div><div data-line-number="557" class="react-line-number react-code-text" style="padding-right:16px">557</div><div data-line-number="558" class="react-line-number react-code-text" style="padding-right:16px">558</div></div><div class="react-code-lines"><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC1" class="react-file-line html-div" data-testid="code-cell" data-line-number="1" style="position:relative"><?<span class="pl-ent">xml</span><span class="pl-e"> version</span>=<span class="pl-s"><span class="pl-pds">"</span>1.0<span class="pl-pds">"</span></span><span class="pl-e"> encoding</span>=<span class="pl-s"><span class="pl-pds">"</span>utf-8<span class="pl-pds">"</span></span>?></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC2" class="react-file-line html-div" data-testid="code-cell" data-line-number="2" style="position:relative"><span class="pl-c"><span class="pl-c"><!--</span> $Revision$ <span class="pl-c">--></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC3" class="react-file-line html-div" data-testid="code-cell" data-line-number="3" style="position:relative"><<span class="pl-ent">chapter</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace<span class="pl-pds">"</span></span> <span class="pl-e">xmlns</span>=<span class="pl-s"><span class="pl-pds">"</span>http://docbook.org/ns/docbook<span class="pl-pds">"</span></span> <span class="pl-e">xmlns</span><span class="pl-e">:</span><span class="pl-e">xlink</span>=<span class="pl-s"><span class="pl-pds">"</span>http://www.w3.org/1999/xlink<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC4" class="react-file-line html-div" data-testid="code-cell" data-line-number="4" style="position:relative"> <<span class="pl-ent">title</span>>DTrace Dynamic Tracing</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC5" class="react-file-line html-div" data-testid="code-cell" data-line-number="5" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC6" class="react-file-line html-div" data-testid="code-cell" data-line-number="6" style="position:relative"> <<span class="pl-ent">sect1</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.introduction<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC7" class="react-file-line html-div" data-testid="code-cell" data-line-number="7" style="position:relative"> <<span class="pl-ent">title</span>>Introduction to PHP and DTrace</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC8" class="react-file-line html-div" data-testid="code-cell" data-line-number="8" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC9" class="react-file-line html-div" data-testid="code-cell" data-line-number="9" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC10" class="react-file-line html-div" data-testid="code-cell" data-line-number="10" style="position:relative"> DTrace is an always-available, low overhead, tracing framework</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC11" class="react-file-line html-div" data-testid="code-cell" data-line-number="11" style="position:relative"> available on a number of platforms including Solaris, macOS,</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC12" class="react-file-line html-div" data-testid="code-cell" data-line-number="12" style="position:relative"> Oracle Linux and BSD. DTrace can trace operating system behavior</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC13" class="react-file-line html-div" data-testid="code-cell" data-line-number="13" style="position:relative"> and user program execution. It can display argument values and be</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC14" class="react-file-line html-div" data-testid="code-cell" data-line-number="14" style="position:relative"> used to infer performance statistics. Probes are monitored by user</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC15" class="react-file-line html-div" data-testid="code-cell" data-line-number="15" style="position:relative"> created scripts written in the DTrace D scripting language. This</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC16" class="react-file-line html-div" data-testid="code-cell" data-line-number="16" style="position:relative"> allows efficient analysis of data points.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC17" class="react-file-line html-div" data-testid="code-cell" data-line-number="17" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC18" class="react-file-line html-div" data-testid="code-cell" data-line-number="18" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC19" class="react-file-line html-div" data-testid="code-cell" data-line-number="19" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC20" class="react-file-line html-div" data-testid="code-cell" data-line-number="20" style="position:relative"> PHP probes that are not being actively monitored by a user's DTrace</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC21" class="react-file-line html-div" data-testid="code-cell" data-line-number="21" style="position:relative"> D script do not contain instrumented code so there is no</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC22" class="react-file-line html-div" data-testid="code-cell" data-line-number="22" style="position:relative"> performance degradation during normal application execution.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC23" class="react-file-line html-div" data-testid="code-cell" data-line-number="23" style="position:relative"> Probes that are being monitored incur an overhead low enough to</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC24" class="react-file-line html-div" data-testid="code-cell" data-line-number="24" style="position:relative"> generally allow DTrace monitoring on live production systems.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC25" class="react-file-line html-div" data-testid="code-cell" data-line-number="25" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC26" class="react-file-line html-div" data-testid="code-cell" data-line-number="26" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC27" class="react-file-line html-div" data-testid="code-cell" data-line-number="27" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC28" class="react-file-line html-div" data-testid="code-cell" data-line-number="28" style="position:relative"> PHP incorporates "User-level Statically Defined Tracing" (USDT)</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC29" class="react-file-line html-div" data-testid="code-cell" data-line-number="29" style="position:relative"> probes that are triggered at runtime. For example, when a D script</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC30" class="react-file-line html-div" data-testid="code-cell" data-line-number="30" style="position:relative"> is monitoring PHP's <<span class="pl-ent">literal</span>>function-entry</<span class="pl-ent">literal</span>> probe, then,</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC31" class="react-file-line html-div" data-testid="code-cell" data-line-number="31" style="position:relative"> every time a PHP script function is called, this probe is fired and</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC32" class="react-file-line html-div" data-testid="code-cell" data-line-number="32" style="position:relative"> the associated D script action code is executed. This action code</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC33" class="react-file-line html-div" data-testid="code-cell" data-line-number="33" style="position:relative"> could, for example, print probe arguments such as the source file</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC34" class="react-file-line html-div" data-testid="code-cell" data-line-number="34" style="position:relative"> location of the PHP function. Or the action could aggregate data</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC35" class="react-file-line html-div" data-testid="code-cell" data-line-number="35" style="position:relative"> such as the number of times each function is called.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC36" class="react-file-line html-div" data-testid="code-cell" data-line-number="36" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC37" class="react-file-line html-div" data-testid="code-cell" data-line-number="37" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC38" class="react-file-line html-div" data-testid="code-cell" data-line-number="38" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC39" class="react-file-line html-div" data-testid="code-cell" data-line-number="39" style="position:relative"> Only the PHP USDT probes are described here. Refer to external</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC40" class="react-file-line html-div" data-testid="code-cell" data-line-number="40" style="position:relative"> general and operating system-specific DTrace literature to see how</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC41" class="react-file-line html-div" data-testid="code-cell" data-line-number="41" style="position:relative"> DTrace can be used to trace arbitrary functions, and how it can be</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC42" class="react-file-line html-div" data-testid="code-cell" data-line-number="42" style="position:relative"> used to trace operating system behavior. Note not all DTrace</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC43" class="react-file-line html-div" data-testid="code-cell" data-line-number="43" style="position:relative"> features are available in all DTrace implementations.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC44" class="react-file-line html-div" data-testid="code-cell" data-line-number="44" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC45" class="react-file-line html-div" data-testid="code-cell" data-line-number="45" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC46" class="react-file-line html-div" data-testid="code-cell" data-line-number="46" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC47" class="react-file-line html-div" data-testid="code-cell" data-line-number="47" style="position:relative"> The static DTrace probes in PHP can alternatively be used with the</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC48" class="react-file-line html-div" data-testid="code-cell" data-line-number="48" style="position:relative"> SystemTap facility on some Linux distributions.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC49" class="react-file-line html-div" data-testid="code-cell" data-line-number="49" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC50" class="react-file-line html-div" data-testid="code-cell" data-line-number="50" style="position:relative"> </<span class="pl-ent">sect1</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC51" class="react-file-line html-div" data-testid="code-cell" data-line-number="51" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC52" class="react-file-line html-div" data-testid="code-cell" data-line-number="52" style="position:relative"> <<span class="pl-ent">sect1</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.dtrace<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC53" class="react-file-line html-div" data-testid="code-cell" data-line-number="53" style="position:relative"> <<span class="pl-ent">title</span>>Using PHP and DTrace</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC54" class="react-file-line html-div" data-testid="code-cell" data-line-number="54" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC55" class="react-file-line html-div" data-testid="code-cell" data-line-number="55" style="position:relative"> PHP can be configured with DTrace static probes on platforms that</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC56" class="react-file-line html-div" data-testid="code-cell" data-line-number="56" style="position:relative"> support DTrace Dynamic Tracing.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC57" class="react-file-line html-div" data-testid="code-cell" data-line-number="57" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC58" class="react-file-line html-div" data-testid="code-cell" data-line-number="58" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC59" class="react-file-line html-div" data-testid="code-cell" data-line-number="59" style="position:relative"> <<span class="pl-ent">sect2</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.install<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC60" class="react-file-line html-div" data-testid="code-cell" data-line-number="60" style="position:relative"> <<span class="pl-ent">title</span>>Configuring PHP for DTrace Static Probes</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC61" class="react-file-line html-div" data-testid="code-cell" data-line-number="61" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC62" class="react-file-line html-div" data-testid="code-cell" data-line-number="62" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC63" class="react-file-line html-div" data-testid="code-cell" data-line-number="63" style="position:relative"> Refer to external platform specific documentation for enabling</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC64" class="react-file-line html-div" data-testid="code-cell" data-line-number="64" style="position:relative"> operating system DTrace support. For example, on Oracle Linux</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC65" class="react-file-line html-div" data-testid="code-cell" data-line-number="65" style="position:relative"> boot a UEK3 kernel and do:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC66" class="react-file-line html-div" data-testid="code-cell" data-line-number="66" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC67" class="react-file-line html-div" data-testid="code-cell" data-line-number="67" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC68" class="react-file-line html-div" data-testid="code-cell" data-line-number="68" style="position:relative"> <<span class="pl-ent">programlisting</span> <span class="pl-e">role</span>=<span class="pl-s"><span class="pl-pds">"</span>php<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC69" class="react-file-line html-div" data-testid="code-cell" data-line-number="69" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC70" class="react-file-line html-div" data-testid="code-cell" data-line-number="70" style="position:relative"><span class="pl-s"># modprobe fasttrap</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC71" class="react-file-line html-div" data-testid="code-cell" data-line-number="71" style="position:relative"><span class="pl-s"># chmod 666 /dev/dtrace/helper</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC72" class="react-file-line html-div" data-testid="code-cell" data-line-number="72" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC73" class="react-file-line html-div" data-testid="code-cell" data-line-number="73" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC74" class="react-file-line html-div" data-testid="code-cell" data-line-number="74" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC75" class="react-file-line html-div" data-testid="code-cell" data-line-number="75" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC76" class="react-file-line html-div" data-testid="code-cell" data-line-number="76" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC77" class="react-file-line html-div" data-testid="code-cell" data-line-number="77" style="position:relative"> Instead of using <<span class="pl-ent">literal</span>>chmod</<span class="pl-ent">literal</span>>, you could instead use an</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC78" class="react-file-line html-div" data-testid="code-cell" data-line-number="78" style="position:relative"> ACL package rule to limit device access to a specific user.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC79" class="react-file-line html-div" data-testid="code-cell" data-line-number="79" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC80" class="react-file-line html-div" data-testid="code-cell" data-line-number="80" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC81" class="react-file-line html-div" data-testid="code-cell" data-line-number="81" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC82" class="react-file-line html-div" data-testid="code-cell" data-line-number="82" style="position:relative"> Build PHP with the <<span class="pl-ent">literal</span>>--enable-dtrace</<span class="pl-ent">literal</span>> configuration parameter:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC83" class="react-file-line html-div" data-testid="code-cell" data-line-number="83" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC84" class="react-file-line html-div" data-testid="code-cell" data-line-number="84" style="position:relative"> <<span class="pl-ent">programlisting</span> <span class="pl-e">role</span>=<span class="pl-s"><span class="pl-pds">"</span>php<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC85" class="react-file-line html-div" data-testid="code-cell" data-line-number="85" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC86" class="react-file-line html-div" data-testid="code-cell" data-line-number="86" style="position:relative"><span class="pl-s"># ./configure --enable-dtrace ...</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC87" class="react-file-line html-div" data-testid="code-cell" data-line-number="87" style="position:relative"><span class="pl-s"># make</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC88" class="react-file-line html-div" data-testid="code-cell" data-line-number="88" style="position:relative"><span class="pl-s"># make install</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC89" class="react-file-line html-div" data-testid="code-cell" data-line-number="89" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC90" class="react-file-line html-div" data-testid="code-cell" data-line-number="90" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC91" class="react-file-line html-div" data-testid="code-cell" data-line-number="91" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC92" class="react-file-line html-div" data-testid="code-cell" data-line-number="92" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC93" class="react-file-line html-div" data-testid="code-cell" data-line-number="93" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC94" class="react-file-line html-div" data-testid="code-cell" data-line-number="94" style="position:relative"> This enables the static probes in core PHP. Any PHP extensions</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC95" class="react-file-line html-div" data-testid="code-cell" data-line-number="95" style="position:relative"> that provide their own probes should be built separately as shared</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC96" class="react-file-line html-div" data-testid="code-cell" data-line-number="96" style="position:relative"> extensions.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC97" class="react-file-line html-div" data-testid="code-cell" data-line-number="97" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC98" class="react-file-line html-div" data-testid="code-cell" data-line-number="98" style="position:relative"> </<span class="pl-ent">sect2</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC99" class="react-file-line html-div" data-testid="code-cell" data-line-number="99" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC100" class="react-file-line html-div" data-testid="code-cell" data-line-number="100" style="position:relative"> <<span class="pl-ent">sect2</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.static-probes<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC101" class="react-file-line html-div" data-testid="code-cell" data-line-number="101" style="position:relative"> <<span class="pl-ent">title</span>>DTrace Static Probes in Core PHP</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC102" class="react-file-line html-div" data-testid="code-cell" data-line-number="102" style="position:relative"> <<span class="pl-ent">table</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC103" class="react-file-line html-div" data-testid="code-cell" data-line-number="103" style="position:relative"> <<span class="pl-ent">title</span>>The following static probes are available in PHP</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC104" class="react-file-line html-div" data-testid="code-cell" data-line-number="104" style="position:relative"> <<span class="pl-ent">tgroup</span> <span class="pl-e">cols</span>=<span class="pl-s"><span class="pl-pds">"</span>2<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC105" class="react-file-line html-div" data-testid="code-cell" data-line-number="105" style="position:relative"> <<span class="pl-ent">thead</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC106" class="react-file-line html-div" data-testid="code-cell" data-line-number="106" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC107" class="react-file-line html-div" data-testid="code-cell" data-line-number="107" style="position:relative"> <<span class="pl-ent">entry</span>>Probe Name</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC108" class="react-file-line html-div" data-testid="code-cell" data-line-number="108" style="position:relative"> <<span class="pl-ent">entry</span>>Probe Description</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC109" class="react-file-line html-div" data-testid="code-cell" data-line-number="109" style="position:relative"> <<span class="pl-ent">entry</span>>Probe Arguments</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC110" class="react-file-line html-div" data-testid="code-cell" data-line-number="110" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC111" class="react-file-line html-div" data-testid="code-cell" data-line-number="111" style="position:relative"> </<span class="pl-ent">thead</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC112" class="react-file-line html-div" data-testid="code-cell" data-line-number="112" style="position:relative"> <<span class="pl-ent">tbody</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC113" class="react-file-line html-div" data-testid="code-cell" data-line-number="113" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC114" class="react-file-line html-div" data-testid="code-cell" data-line-number="114" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>request-startup</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC115" class="react-file-line html-div" data-testid="code-cell" data-line-number="115" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when a request starts.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC116" class="react-file-line html-div" data-testid="code-cell" data-line-number="116" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>file</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>request_uri</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>request_method</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC117" class="react-file-line html-div" data-testid="code-cell" data-line-number="117" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC118" class="react-file-line html-div" data-testid="code-cell" data-line-number="118" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC119" class="react-file-line html-div" data-testid="code-cell" data-line-number="119" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>request-shutdown</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC120" class="react-file-line html-div" data-testid="code-cell" data-line-number="120" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when a request shutdown.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC121" class="react-file-line html-div" data-testid="code-cell" data-line-number="121" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>file</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>request_uri</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>request_method</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC122" class="react-file-line html-div" data-testid="code-cell" data-line-number="122" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC123" class="react-file-line html-div" data-testid="code-cell" data-line-number="123" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC124" class="react-file-line html-div" data-testid="code-cell" data-line-number="124" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>compile-file-entry</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC125" class="react-file-line html-div" data-testid="code-cell" data-line-number="125" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when the compilation of a script starts.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC126" class="react-file-line html-div" data-testid="code-cell" data-line-number="126" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>compile_file</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>compile_file_translated</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC127" class="react-file-line html-div" data-testid="code-cell" data-line-number="127" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC128" class="react-file-line html-div" data-testid="code-cell" data-line-number="128" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC129" class="react-file-line html-div" data-testid="code-cell" data-line-number="129" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>compile-file-return</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC130" class="react-file-line html-div" data-testid="code-cell" data-line-number="130" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when the compilation of a script finishes.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC131" class="react-file-line html-div" data-testid="code-cell" data-line-number="131" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>compile_file</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>compile_file_translated</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC132" class="react-file-line html-div" data-testid="code-cell" data-line-number="132" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC133" class="react-file-line html-div" data-testid="code-cell" data-line-number="133" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC134" class="react-file-line html-div" data-testid="code-cell" data-line-number="134" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>execute-entry</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC135" class="react-file-line html-div" data-testid="code-cell" data-line-number="135" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when an opcode array is to be executed. For</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC136" class="react-file-line html-div" data-testid="code-cell" data-line-number="136" style="position:relative"> example, it fires on function calls, includes, and generator</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC137" class="react-file-line html-div" data-testid="code-cell" data-line-number="137" style="position:relative"> resumes.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC138" class="react-file-line html-div" data-testid="code-cell" data-line-number="138" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>request_file</<span class="pl-ent">varname</span>>, int <<span class="pl-ent">varname</span>>lineno</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC139" class="react-file-line html-div" data-testid="code-cell" data-line-number="139" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC140" class="react-file-line html-div" data-testid="code-cell" data-line-number="140" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC141" class="react-file-line html-div" data-testid="code-cell" data-line-number="141" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>execute-return</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC142" class="react-file-line html-div" data-testid="code-cell" data-line-number="142" style="position:relative"> <<span class="pl-ent">entry</span>>Fires after execution of an opcode array.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC143" class="react-file-line html-div" data-testid="code-cell" data-line-number="143" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>request_file</<span class="pl-ent">varname</span>>, int <<span class="pl-ent">varname</span>>lineno</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC144" class="react-file-line html-div" data-testid="code-cell" data-line-number="144" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC145" class="react-file-line html-div" data-testid="code-cell" data-line-number="145" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC146" class="react-file-line html-div" data-testid="code-cell" data-line-number="146" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>function-entry</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC147" class="react-file-line html-div" data-testid="code-cell" data-line-number="147" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when the PHP engine enters a PHP function or method call.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC148" class="react-file-line html-div" data-testid="code-cell" data-line-number="148" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>function_name</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>request_file</<span class="pl-ent">varname</span>>, int <<span class="pl-ent">varname</span>>lineno</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>classname</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>scope</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC149" class="react-file-line html-div" data-testid="code-cell" data-line-number="149" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC150" class="react-file-line html-div" data-testid="code-cell" data-line-number="150" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC151" class="react-file-line html-div" data-testid="code-cell" data-line-number="151" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>function-return</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC152" class="react-file-line html-div" data-testid="code-cell" data-line-number="152" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when the PHP engine returns from a PHP function or method call.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC153" class="react-file-line html-div" data-testid="code-cell" data-line-number="153" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>function_name</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>request_file</<span class="pl-ent">varname</span>>, int <<span class="pl-ent">varname</span>>lineno</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>classname</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>scope</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC154" class="react-file-line html-div" data-testid="code-cell" data-line-number="154" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC155" class="react-file-line html-div" data-testid="code-cell" data-line-number="155" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC156" class="react-file-line html-div" data-testid="code-cell" data-line-number="156" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>exception-thrown</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC157" class="react-file-line html-div" data-testid="code-cell" data-line-number="157" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when an exception is thrown.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC158" class="react-file-line html-div" data-testid="code-cell" data-line-number="158" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>classname</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC159" class="react-file-line html-div" data-testid="code-cell" data-line-number="159" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC160" class="react-file-line html-div" data-testid="code-cell" data-line-number="160" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC161" class="react-file-line html-div" data-testid="code-cell" data-line-number="161" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>exception-caught</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC162" class="react-file-line html-div" data-testid="code-cell" data-line-number="162" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when an exception is caught.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC163" class="react-file-line html-div" data-testid="code-cell" data-line-number="163" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>classname</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC164" class="react-file-line html-div" data-testid="code-cell" data-line-number="164" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC165" class="react-file-line html-div" data-testid="code-cell" data-line-number="165" style="position:relative"> <<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC166" class="react-file-line html-div" data-testid="code-cell" data-line-number="166" style="position:relative"> <<span class="pl-ent">entry</span>><<span class="pl-ent">literal</span>>error</<span class="pl-ent">literal</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC167" class="react-file-line html-div" data-testid="code-cell" data-line-number="167" style="position:relative"> <<span class="pl-ent">entry</span>>Fires when an error occurs, regardless of the <<span class="pl-ent">link</span> <span class="pl-e">linkend</span>=<span class="pl-s"><span class="pl-pds">"</span>ini.error-reporting<span class="pl-pds">"</span></span>>error_reporting</<span class="pl-ent">link</span>> level.</<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC168" class="react-file-line html-div" data-testid="code-cell" data-line-number="168" style="position:relative"> <<span class="pl-ent">entry</span>>char *<<span class="pl-ent">varname</span>>errormsg</<span class="pl-ent">varname</span>>, char *<<span class="pl-ent">varname</span>>request_file</<span class="pl-ent">varname</span>>, int <<span class="pl-ent">varname</span>>lineno</<span class="pl-ent">varname</span>></<span class="pl-ent">entry</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC169" class="react-file-line html-div" data-testid="code-cell" data-line-number="169" style="position:relative"> </<span class="pl-ent">row</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC170" class="react-file-line html-div" data-testid="code-cell" data-line-number="170" style="position:relative"> </<span class="pl-ent">tbody</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC171" class="react-file-line html-div" data-testid="code-cell" data-line-number="171" style="position:relative"> </<span class="pl-ent">tgroup</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC172" class="react-file-line html-div" data-testid="code-cell" data-line-number="172" style="position:relative"> </<span class="pl-ent">table</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC173" class="react-file-line html-div" data-testid="code-cell" data-line-number="173" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC174" class="react-file-line html-div" data-testid="code-cell" data-line-number="174" style="position:relative"> PHP extensions may also have additional static probes.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC175" class="react-file-line html-div" data-testid="code-cell" data-line-number="175" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC176" class="react-file-line html-div" data-testid="code-cell" data-line-number="176" style="position:relative"> </<span class="pl-ent">sect2</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC177" class="react-file-line html-div" data-testid="code-cell" data-line-number="177" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC178" class="react-file-line html-div" data-testid="code-cell" data-line-number="178" style="position:relative"> <<span class="pl-ent">sect2</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.list-probes<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC179" class="react-file-line html-div" data-testid="code-cell" data-line-number="179" style="position:relative"> <<span class="pl-ent">title</span>>Listing DTrace Static Probes in PHP</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC180" class="react-file-line html-div" data-testid="code-cell" data-line-number="180" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC181" class="react-file-line html-div" data-testid="code-cell" data-line-number="181" style="position:relative"> To list available probes, start a PHP process and then run:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC182" class="react-file-line html-div" data-testid="code-cell" data-line-number="182" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC183" class="react-file-line html-div" data-testid="code-cell" data-line-number="183" style="position:relative"> <<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC184" class="react-file-line html-div" data-testid="code-cell" data-line-number="184" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC185" class="react-file-line html-div" data-testid="code-cell" data-line-number="185" style="position:relative"><span class="pl-s"># dtrace -l</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC186" class="react-file-line html-div" data-testid="code-cell" data-line-number="186" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC187" class="react-file-line html-div" data-testid="code-cell" data-line-number="187" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC188" class="react-file-line html-div" data-testid="code-cell" data-line-number="188" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC189" class="react-file-line html-div" data-testid="code-cell" data-line-number="189" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC190" class="react-file-line html-div" data-testid="code-cell" data-line-number="190" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC191" class="react-file-line html-div" data-testid="code-cell" data-line-number="191" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC192" class="react-file-line html-div" data-testid="code-cell" data-line-number="192" style="position:relative"> The output will be similar to:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC193" class="react-file-line html-div" data-testid="code-cell" data-line-number="193" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC194" class="react-file-line html-div" data-testid="code-cell" data-line-number="194" style="position:relative"> <<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC195" class="react-file-line html-div" data-testid="code-cell" data-line-number="195" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC196" class="react-file-line html-div" data-testid="code-cell" data-line-number="196" style="position:relative"><span class="pl-s"> ID PROVIDER MODULE FUNCTION NAME</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC197" class="react-file-line html-div" data-testid="code-cell" data-line-number="197" style="position:relative"><span class="pl-s"> [ . . . ]</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC198" class="react-file-line html-div" data-testid="code-cell" data-line-number="198" style="position:relative"><span class="pl-s"> 4 php15271 php dtrace_compile_file compile-file-entry</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC199" class="react-file-line html-div" data-testid="code-cell" data-line-number="199" style="position:relative"><span class="pl-s"> 5 php15271 php dtrace_compile_file compile-file-return</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC200" class="react-file-line html-div" data-testid="code-cell" data-line-number="200" style="position:relative"><span class="pl-s"> 6 php15271 php zend_error error</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC201" class="react-file-line html-div" data-testid="code-cell" data-line-number="201" style="position:relative"><span class="pl-s"> 7 php15271 php ZEND_CATCH_SPEC_CONST_CV_HANDLER exception-caught</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC202" class="react-file-line html-div" data-testid="code-cell" data-line-number="202" style="position:relative"><span class="pl-s"> 8 php15271 php zend_throw_exception_internal exception-thrown</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC203" class="react-file-line html-div" data-testid="code-cell" data-line-number="203" style="position:relative"><span class="pl-s"> 9 php15271 php dtrace_execute_ex execute-entry</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC204" class="react-file-line html-div" data-testid="code-cell" data-line-number="204" style="position:relative"><span class="pl-s"> 10 php15271 php dtrace_execute_internal execute-entry</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC205" class="react-file-line html-div" data-testid="code-cell" data-line-number="205" style="position:relative"><span class="pl-s"> 11 php15271 php dtrace_execute_ex execute-return</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC206" class="react-file-line html-div" data-testid="code-cell" data-line-number="206" style="position:relative"><span class="pl-s"> 12 php15271 php dtrace_execute_internal execute-return</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC207" class="react-file-line html-div" data-testid="code-cell" data-line-number="207" style="position:relative"><span class="pl-s"> 13 php15271 php dtrace_execute_ex function-entry</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC208" class="react-file-line html-div" data-testid="code-cell" data-line-number="208" style="position:relative"><span class="pl-s"> 14 php15271 php dtrace_execute_ex function-return</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC209" class="react-file-line html-div" data-testid="code-cell" data-line-number="209" style="position:relative"><span class="pl-s"> 15 php15271 php php_request_shutdown request-shutdown</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC210" class="react-file-line html-div" data-testid="code-cell" data-line-number="210" style="position:relative"><span class="pl-s"> 16 php15271 php php_request_startup request-startup</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC211" class="react-file-line html-div" data-testid="code-cell" data-line-number="211" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC212" class="react-file-line html-div" data-testid="code-cell" data-line-number="212" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC213" class="react-file-line html-div" data-testid="code-cell" data-line-number="213" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC214" class="react-file-line html-div" data-testid="code-cell" data-line-number="214" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC215" class="react-file-line html-div" data-testid="code-cell" data-line-number="215" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC216" class="react-file-line html-div" data-testid="code-cell" data-line-number="216" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC217" class="react-file-line html-div" data-testid="code-cell" data-line-number="217" style="position:relative"> The Provider column values consist of <<span class="pl-ent">literal</span>>php</<span class="pl-ent">literal</span>> and</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC218" class="react-file-line html-div" data-testid="code-cell" data-line-number="218" style="position:relative"> the process id of the currently running PHP process.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC219" class="react-file-line html-div" data-testid="code-cell" data-line-number="219" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC220" class="react-file-line html-div" data-testid="code-cell" data-line-number="220" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC221" class="react-file-line html-div" data-testid="code-cell" data-line-number="221" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC222" class="react-file-line html-div" data-testid="code-cell" data-line-number="222" style="position:relative"> If the Apache web server is running, the module name might be, for</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC223" class="react-file-line html-div" data-testid="code-cell" data-line-number="223" style="position:relative"> example, <<span class="pl-ent">filename</span>>libphp5.so</<span class="pl-ent">filename</span>>, and there would be</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC224" class="react-file-line html-div" data-testid="code-cell" data-line-number="224" style="position:relative"> multiple blocks of listings, one per running Apache process.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC225" class="react-file-line html-div" data-testid="code-cell" data-line-number="225" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC226" class="react-file-line html-div" data-testid="code-cell" data-line-number="226" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC227" class="react-file-line html-div" data-testid="code-cell" data-line-number="227" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC228" class="react-file-line html-div" data-testid="code-cell" data-line-number="228" style="position:relative"> The Function column refers to PHP's internal C implementation</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC229" class="react-file-line html-div" data-testid="code-cell" data-line-number="229" style="position:relative"> function names where each provider is located.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC230" class="react-file-line html-div" data-testid="code-cell" data-line-number="230" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC231" class="react-file-line html-div" data-testid="code-cell" data-line-number="231" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC232" class="react-file-line html-div" data-testid="code-cell" data-line-number="232" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC233" class="react-file-line html-div" data-testid="code-cell" data-line-number="233" style="position:relative"> If a PHP process is not running, then no PHP probes will be shown.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC234" class="react-file-line html-div" data-testid="code-cell" data-line-number="234" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC235" class="react-file-line html-div" data-testid="code-cell" data-line-number="235" style="position:relative"> </<span class="pl-ent">sect2</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC236" class="react-file-line html-div" data-testid="code-cell" data-line-number="236" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC237" class="react-file-line html-div" data-testid="code-cell" data-line-number="237" style="position:relative"> <<span class="pl-ent">sect2</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.examples<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC238" class="react-file-line html-div" data-testid="code-cell" data-line-number="238" style="position:relative"> <<span class="pl-ent">title</span>>DTrace with PHP Example</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC239" class="react-file-line html-div" data-testid="code-cell" data-line-number="239" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC240" class="react-file-line html-div" data-testid="code-cell" data-line-number="240" style="position:relative"> This example shows the basics of the DTrace D scripting language.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC241" class="react-file-line html-div" data-testid="code-cell" data-line-number="241" style="position:relative"> <<span class="pl-ent">example</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC242" class="react-file-line html-div" data-testid="code-cell" data-line-number="242" style="position:relative"> <<span class="pl-ent">title</span>><<span class="pl-ent">filename</span>>all_probes.d</<span class="pl-ent">filename</span>> for tracing all PHP Static Probes with DTrace</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC243" class="react-file-line html-div" data-testid="code-cell" data-line-number="243" style="position:relative"> <<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC244" class="react-file-line html-div" data-testid="code-cell" data-line-number="244" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC245" class="react-file-line html-div" data-testid="code-cell" data-line-number="245" style="position:relative"><span class="pl-s">#!/usr/sbin/dtrace -Zs</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC246" class="react-file-line html-div" data-testid="code-cell" data-line-number="246" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC247" class="react-file-line html-div" data-testid="code-cell" data-line-number="247" style="position:relative"><span class="pl-s">#pragma D option quiet</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC248" class="react-file-line html-div" data-testid="code-cell" data-line-number="248" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC249" class="react-file-line html-div" data-testid="code-cell" data-line-number="249" style="position:relative"><span class="pl-s">php*:::compile-file-entry</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC250" class="react-file-line html-div" data-testid="code-cell" data-line-number="250" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC251" class="react-file-line html-div" data-testid="code-cell" data-line-number="251" style="position:relative"><span class="pl-s"> printf("PHP compile-file-entry\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC252" class="react-file-line html-div" data-testid="code-cell" data-line-number="252" style="position:relative"><span class="pl-s"> printf(" compile_file %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC253" class="react-file-line html-div" data-testid="code-cell" data-line-number="253" style="position:relative"><span class="pl-s"> printf(" compile_file_translated %s\n", copyinstr(arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC254" class="react-file-line html-div" data-testid="code-cell" data-line-number="254" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC255" class="react-file-line html-div" data-testid="code-cell" data-line-number="255" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC256" class="react-file-line html-div" data-testid="code-cell" data-line-number="256" style="position:relative"><span class="pl-s">php*:::compile-file-return</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC257" class="react-file-line html-div" data-testid="code-cell" data-line-number="257" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC258" class="react-file-line html-div" data-testid="code-cell" data-line-number="258" style="position:relative"><span class="pl-s"> printf("PHP compile-file-return\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC259" class="react-file-line html-div" data-testid="code-cell" data-line-number="259" style="position:relative"><span class="pl-s"> printf(" compile_file %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC260" class="react-file-line html-div" data-testid="code-cell" data-line-number="260" style="position:relative"><span class="pl-s"> printf(" compile_file_translated %s\n", copyinstr(arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC261" class="react-file-line html-div" data-testid="code-cell" data-line-number="261" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC262" class="react-file-line html-div" data-testid="code-cell" data-line-number="262" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC263" class="react-file-line html-div" data-testid="code-cell" data-line-number="263" style="position:relative"><span class="pl-s">php*:::error</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC264" class="react-file-line html-div" data-testid="code-cell" data-line-number="264" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC265" class="react-file-line html-div" data-testid="code-cell" data-line-number="265" style="position:relative"><span class="pl-s"> printf("PHP error\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC266" class="react-file-line html-div" data-testid="code-cell" data-line-number="266" style="position:relative"><span class="pl-s"> printf(" errormsg %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC267" class="react-file-line html-div" data-testid="code-cell" data-line-number="267" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", copyinstr(arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC268" class="react-file-line html-div" data-testid="code-cell" data-line-number="268" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", (int)arg2);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC269" class="react-file-line html-div" data-testid="code-cell" data-line-number="269" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC270" class="react-file-line html-div" data-testid="code-cell" data-line-number="270" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC271" class="react-file-line html-div" data-testid="code-cell" data-line-number="271" style="position:relative"><span class="pl-s">php*:::exception-caught</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC272" class="react-file-line html-div" data-testid="code-cell" data-line-number="272" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC273" class="react-file-line html-div" data-testid="code-cell" data-line-number="273" style="position:relative"><span class="pl-s"> printf("PHP exception-caught\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC274" class="react-file-line html-div" data-testid="code-cell" data-line-number="274" style="position:relative"><span class="pl-s"> printf(" classname %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC275" class="react-file-line html-div" data-testid="code-cell" data-line-number="275" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC276" class="react-file-line html-div" data-testid="code-cell" data-line-number="276" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC277" class="react-file-line html-div" data-testid="code-cell" data-line-number="277" style="position:relative"><span class="pl-s">php*:::exception-thrown</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC278" class="react-file-line html-div" data-testid="code-cell" data-line-number="278" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC279" class="react-file-line html-div" data-testid="code-cell" data-line-number="279" style="position:relative"><span class="pl-s"> printf("PHP exception-thrown\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC280" class="react-file-line html-div" data-testid="code-cell" data-line-number="280" style="position:relative"><span class="pl-s"> printf(" classname %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC281" class="react-file-line html-div" data-testid="code-cell" data-line-number="281" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC282" class="react-file-line html-div" data-testid="code-cell" data-line-number="282" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC283" class="react-file-line html-div" data-testid="code-cell" data-line-number="283" style="position:relative"><span class="pl-s">php*:::execute-entry</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC284" class="react-file-line html-div" data-testid="code-cell" data-line-number="284" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC285" class="react-file-line html-div" data-testid="code-cell" data-line-number="285" style="position:relative"><span class="pl-s"> printf("PHP execute-entry\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC286" class="react-file-line html-div" data-testid="code-cell" data-line-number="286" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC287" class="react-file-line html-div" data-testid="code-cell" data-line-number="287" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", (int)arg1);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC288" class="react-file-line html-div" data-testid="code-cell" data-line-number="288" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC289" class="react-file-line html-div" data-testid="code-cell" data-line-number="289" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC290" class="react-file-line html-div" data-testid="code-cell" data-line-number="290" style="position:relative"><span class="pl-s">php*:::execute-return</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC291" class="react-file-line html-div" data-testid="code-cell" data-line-number="291" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC292" class="react-file-line html-div" data-testid="code-cell" data-line-number="292" style="position:relative"><span class="pl-s"> printf("PHP execute-return\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC293" class="react-file-line html-div" data-testid="code-cell" data-line-number="293" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC294" class="react-file-line html-div" data-testid="code-cell" data-line-number="294" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", (int)arg1);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC295" class="react-file-line html-div" data-testid="code-cell" data-line-number="295" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC296" class="react-file-line html-div" data-testid="code-cell" data-line-number="296" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC297" class="react-file-line html-div" data-testid="code-cell" data-line-number="297" style="position:relative"><span class="pl-s">php*:::function-entry</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC298" class="react-file-line html-div" data-testid="code-cell" data-line-number="298" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC299" class="react-file-line html-div" data-testid="code-cell" data-line-number="299" style="position:relative"><span class="pl-s"> printf("PHP function-entry\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC300" class="react-file-line html-div" data-testid="code-cell" data-line-number="300" style="position:relative"><span class="pl-s"> printf(" function_name %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC301" class="react-file-line html-div" data-testid="code-cell" data-line-number="301" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", copyinstr(arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC302" class="react-file-line html-div" data-testid="code-cell" data-line-number="302" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", (int)arg2);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC303" class="react-file-line html-div" data-testid="code-cell" data-line-number="303" style="position:relative"><span class="pl-s"> printf(" classname %s\n", copyinstr(arg3));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC304" class="react-file-line html-div" data-testid="code-cell" data-line-number="304" style="position:relative"><span class="pl-s"> printf(" scope %s\n", copyinstr(arg4));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC305" class="react-file-line html-div" data-testid="code-cell" data-line-number="305" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC306" class="react-file-line html-div" data-testid="code-cell" data-line-number="306" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC307" class="react-file-line html-div" data-testid="code-cell" data-line-number="307" style="position:relative"><span class="pl-s">php*:::function-return</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC308" class="react-file-line html-div" data-testid="code-cell" data-line-number="308" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC309" class="react-file-line html-div" data-testid="code-cell" data-line-number="309" style="position:relative"><span class="pl-s"> printf("PHP function-return\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC310" class="react-file-line html-div" data-testid="code-cell" data-line-number="310" style="position:relative"><span class="pl-s"> printf(" function_name %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC311" class="react-file-line html-div" data-testid="code-cell" data-line-number="311" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", copyinstr(arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC312" class="react-file-line html-div" data-testid="code-cell" data-line-number="312" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", (int)arg2);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC313" class="react-file-line html-div" data-testid="code-cell" data-line-number="313" style="position:relative"><span class="pl-s"> printf(" classname %s\n", copyinstr(arg3));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC314" class="react-file-line html-div" data-testid="code-cell" data-line-number="314" style="position:relative"><span class="pl-s"> printf(" scope %s\n", copyinstr(arg4));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC315" class="react-file-line html-div" data-testid="code-cell" data-line-number="315" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC316" class="react-file-line html-div" data-testid="code-cell" data-line-number="316" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC317" class="react-file-line html-div" data-testid="code-cell" data-line-number="317" style="position:relative"><span class="pl-s">php*:::request-shutdown</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC318" class="react-file-line html-div" data-testid="code-cell" data-line-number="318" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC319" class="react-file-line html-div" data-testid="code-cell" data-line-number="319" style="position:relative"><span class="pl-s"> printf("PHP request-shutdown\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC320" class="react-file-line html-div" data-testid="code-cell" data-line-number="320" style="position:relative"><span class="pl-s"> printf(" file %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC321" class="react-file-line html-div" data-testid="code-cell" data-line-number="321" style="position:relative"><span class="pl-s"> printf(" request_uri %s\n", copyinstr(arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC322" class="react-file-line html-div" data-testid="code-cell" data-line-number="322" style="position:relative"><span class="pl-s"> printf(" request_method %s\n", copyinstr(arg2));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC323" class="react-file-line html-div" data-testid="code-cell" data-line-number="323" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC324" class="react-file-line html-div" data-testid="code-cell" data-line-number="324" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC325" class="react-file-line html-div" data-testid="code-cell" data-line-number="325" style="position:relative"><span class="pl-s">php*:::request-startup</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC326" class="react-file-line html-div" data-testid="code-cell" data-line-number="326" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC327" class="react-file-line html-div" data-testid="code-cell" data-line-number="327" style="position:relative"><span class="pl-s"> printf("PHP request-startup\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC328" class="react-file-line html-div" data-testid="code-cell" data-line-number="328" style="position:relative"><span class="pl-s"> printf(" file %s\n", copyinstr(arg0));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC329" class="react-file-line html-div" data-testid="code-cell" data-line-number="329" style="position:relative"><span class="pl-s"> printf(" request_uri %s\n", copyinstr(arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC330" class="react-file-line html-div" data-testid="code-cell" data-line-number="330" style="position:relative"><span class="pl-s"> printf(" request_method %s\n", copyinstr(arg2));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC331" class="react-file-line html-div" data-testid="code-cell" data-line-number="331" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC332" class="react-file-line html-div" data-testid="code-cell" data-line-number="332" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC333" class="react-file-line html-div" data-testid="code-cell" data-line-number="333" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC334" class="react-file-line html-div" data-testid="code-cell" data-line-number="334" style="position:relative"> </<span class="pl-ent">example</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC335" class="react-file-line html-div" data-testid="code-cell" data-line-number="335" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC336" class="react-file-line html-div" data-testid="code-cell" data-line-number="336" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC337" class="react-file-line html-div" data-testid="code-cell" data-line-number="337" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC338" class="react-file-line html-div" data-testid="code-cell" data-line-number="338" style="position:relative"> This script uses the <<span class="pl-ent">literal</span>>-Z</<span class="pl-ent">literal</span>> option to</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC339" class="react-file-line html-div" data-testid="code-cell" data-line-number="339" style="position:relative"> <<span class="pl-ent">filename</span>>dtrace</<span class="pl-ent">filename</span>>, allowing it to be run when there is no</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC340" class="react-file-line html-div" data-testid="code-cell" data-line-number="340" style="position:relative"> PHP process executing. If this option were omitted the script</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC341" class="react-file-line html-div" data-testid="code-cell" data-line-number="341" style="position:relative"> would immediately terminate because it knows none of the probes to</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC342" class="react-file-line html-div" data-testid="code-cell" data-line-number="342" style="position:relative"> be monitored are in existence.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC343" class="react-file-line html-div" data-testid="code-cell" data-line-number="343" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC344" class="react-file-line html-div" data-testid="code-cell" data-line-number="344" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC345" class="react-file-line html-div" data-testid="code-cell" data-line-number="345" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC346" class="react-file-line html-div" data-testid="code-cell" data-line-number="346" style="position:relative"> The script traces all core PHP static probe points throughout the</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC347" class="react-file-line html-div" data-testid="code-cell" data-line-number="347" style="position:relative"> duration of a running PHP script. Run the D script:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC348" class="react-file-line html-div" data-testid="code-cell" data-line-number="348" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC349" class="react-file-line html-div" data-testid="code-cell" data-line-number="349" style="position:relative"> <<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC350" class="react-file-line html-div" data-testid="code-cell" data-line-number="350" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC351" class="react-file-line html-div" data-testid="code-cell" data-line-number="351" style="position:relative"><span class="pl-s"># ./all_probes.d</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC352" class="react-file-line html-div" data-testid="code-cell" data-line-number="352" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC353" class="react-file-line html-div" data-testid="code-cell" data-line-number="353" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC354" class="react-file-line html-div" data-testid="code-cell" data-line-number="354" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC355" class="react-file-line html-div" data-testid="code-cell" data-line-number="355" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC356" class="react-file-line html-div" data-testid="code-cell" data-line-number="356" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC357" class="react-file-line html-div" data-testid="code-cell" data-line-number="357" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC358" class="react-file-line html-div" data-testid="code-cell" data-line-number="358" style="position:relative"> Run a PHP script or application. The monitoring D script will</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC359" class="react-file-line html-div" data-testid="code-cell" data-line-number="359" style="position:relative"> output each probe's arguments as it fires.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC360" class="react-file-line html-div" data-testid="code-cell" data-line-number="360" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC361" class="react-file-line html-div" data-testid="code-cell" data-line-number="361" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC362" class="react-file-line html-div" data-testid="code-cell" data-line-number="362" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC363" class="react-file-line html-div" data-testid="code-cell" data-line-number="363" style="position:relative"> When monitoring is complete, the D script can be terminated with a</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC364" class="react-file-line html-div" data-testid="code-cell" data-line-number="364" style="position:relative"> <<span class="pl-ent">keycombo</span> <span class="pl-e">action</span>=<span class="pl-s"><span class="pl-pds">'</span>simul<span class="pl-pds">'</span></span>><<span class="pl-ent">keycap</span>>CTRL</<span class="pl-ent">keycap</span>><<span class="pl-ent">keycap</span>>C</<span class="pl-ent">keycap</span>></<span class="pl-ent">keycombo</span>>.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC365" class="react-file-line html-div" data-testid="code-cell" data-line-number="365" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC366" class="react-file-line html-div" data-testid="code-cell" data-line-number="366" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC367" class="react-file-line html-div" data-testid="code-cell" data-line-number="367" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC368" class="react-file-line html-div" data-testid="code-cell" data-line-number="368" style="position:relative"> On multi-CPU machines the probe ordering might not appear to be</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC369" class="react-file-line html-div" data-testid="code-cell" data-line-number="369" style="position:relative"> sequential. This depends on which CPU was processing the probes,</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC370" class="react-file-line html-div" data-testid="code-cell" data-line-number="370" style="position:relative"> and how threads migrate across CPUs. Displaying probe time stamps</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC371" class="react-file-line html-div" data-testid="code-cell" data-line-number="371" style="position:relative"> will help reduce confusion, for example:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC372" class="react-file-line html-div" data-testid="code-cell" data-line-number="372" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC373" class="react-file-line html-div" data-testid="code-cell" data-line-number="373" style="position:relative"> <<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC374" class="react-file-line html-div" data-testid="code-cell" data-line-number="374" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC375" class="react-file-line html-div" data-testid="code-cell" data-line-number="375" style="position:relative"><span class="pl-s">php*:::function-entry</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC376" class="react-file-line html-div" data-testid="code-cell" data-line-number="376" style="position:relative"><span class="pl-s">{</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC377" class="react-file-line html-div" data-testid="code-cell" data-line-number="377" style="position:relative"><span class="pl-s"> printf("%lld: PHP function-entry ", walltimestamp);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC378" class="react-file-line html-div" data-testid="code-cell" data-line-number="378" style="position:relative"><span class="pl-s"> [ . . .]</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC379" class="react-file-line html-div" data-testid="code-cell" data-line-number="379" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC380" class="react-file-line html-div" data-testid="code-cell" data-line-number="380" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC381" class="react-file-line html-div" data-testid="code-cell" data-line-number="381" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC382" class="react-file-line html-div" data-testid="code-cell" data-line-number="382" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC383" class="react-file-line html-div" data-testid="code-cell" data-line-number="383" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC384" class="react-file-line html-div" data-testid="code-cell" data-line-number="384" style="position:relative"> </<span class="pl-ent">sect2</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC385" class="react-file-line html-div" data-testid="code-cell" data-line-number="385" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC386" class="react-file-line html-div" data-testid="code-cell" data-line-number="386" style="position:relative"> <<span class="pl-ent">sect2</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.references<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC387" class="react-file-line html-div" data-testid="code-cell" data-line-number="387" style="position:relative"> <span class="pl-c1">&reftitle.seealso;</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC388" class="react-file-line html-div" data-testid="code-cell" data-line-number="388" style="position:relative"> <<span class="pl-ent">simplelist</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC389" class="react-file-line html-div" data-testid="code-cell" data-line-number="389" style="position:relative"> <<span class="pl-ent">member</span>><<span class="pl-ent">link</span> <span class="pl-e">linkend</span>=<span class="pl-s"><span class="pl-pds">"</span>oci8.dtrace<span class="pl-pds">"</span></span>>OCI8 and DTrace Dynamic Tracing</<span class="pl-ent">link</span>></<span class="pl-ent">member</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC390" class="react-file-line html-div" data-testid="code-cell" data-line-number="390" style="position:relative"> </<span class="pl-ent">simplelist</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC391" class="react-file-line html-div" data-testid="code-cell" data-line-number="391" style="position:relative"> </<span class="pl-ent">sect2</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC392" class="react-file-line html-div" data-testid="code-cell" data-line-number="392" style="position:relative"> </<span class="pl-ent">sect1</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC393" class="react-file-line html-div" data-testid="code-cell" data-line-number="393" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC394" class="react-file-line html-div" data-testid="code-cell" data-line-number="394" style="position:relative"> <<span class="pl-ent">sect1</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.systemtap<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC395" class="react-file-line html-div" data-testid="code-cell" data-line-number="395" style="position:relative"> <<span class="pl-ent">title</span>>Using SystemTap with PHP DTrace Static Probes</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC396" class="react-file-line html-div" data-testid="code-cell" data-line-number="396" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC397" class="react-file-line html-div" data-testid="code-cell" data-line-number="397" style="position:relative"> On some Linux distributions, the SystemTap tracing utility can be</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC398" class="react-file-line html-div" data-testid="code-cell" data-line-number="398" style="position:relative"> used to trace PHP's static DTrace probes. This is available with</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC399" class="react-file-line html-div" data-testid="code-cell" data-line-number="399" style="position:relative"> PHP 5.4.20 and PHP 5.5.</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC400" class="react-file-line html-div" data-testid="code-cell" data-line-number="400" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC401" class="react-file-line html-div" data-testid="code-cell" data-line-number="401" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC402" class="react-file-line html-div" data-testid="code-cell" data-line-number="402" style="position:relative"> <<span class="pl-ent">sect2</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.systemtap-install<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC403" class="react-file-line html-div" data-testid="code-cell" data-line-number="403" style="position:relative"> <<span class="pl-ent">title</span>>Installing PHP with SystemTap</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC404" class="react-file-line html-div" data-testid="code-cell" data-line-number="404" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC405" class="react-file-line html-div" data-testid="code-cell" data-line-number="405" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC406" class="react-file-line html-div" data-testid="code-cell" data-line-number="406" style="position:relative"> Install the SystemTap SDT development package:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC407" class="react-file-line html-div" data-testid="code-cell" data-line-number="407" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC408" class="react-file-line html-div" data-testid="code-cell" data-line-number="408" style="position:relative"> <<span class="pl-ent">programlisting</span> <span class="pl-e">role</span>=<span class="pl-s"><span class="pl-pds">"</span>shell<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC409" class="react-file-line html-div" data-testid="code-cell" data-line-number="409" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC410" class="react-file-line html-div" data-testid="code-cell" data-line-number="410" style="position:relative"><span class="pl-s"># yum install systemtap-sdt-devel</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC411" class="react-file-line html-div" data-testid="code-cell" data-line-number="411" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC412" class="react-file-line html-div" data-testid="code-cell" data-line-number="412" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC413" class="react-file-line html-div" data-testid="code-cell" data-line-number="413" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC414" class="react-file-line html-div" data-testid="code-cell" data-line-number="414" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC415" class="react-file-line html-div" data-testid="code-cell" data-line-number="415" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC416" class="react-file-line html-div" data-testid="code-cell" data-line-number="416" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC417" class="react-file-line html-div" data-testid="code-cell" data-line-number="417" style="position:relative"> Install PHP with the DTrace probes enabled:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC418" class="react-file-line html-div" data-testid="code-cell" data-line-number="418" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC419" class="react-file-line html-div" data-testid="code-cell" data-line-number="419" style="position:relative"> <<span class="pl-ent">programlisting</span> <span class="pl-e">role</span>=<span class="pl-s"><span class="pl-pds">"</span>shell<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC420" class="react-file-line html-div" data-testid="code-cell" data-line-number="420" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC421" class="react-file-line html-div" data-testid="code-cell" data-line-number="421" style="position:relative"><span class="pl-s"># ./configure --enable-dtrace ...</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC422" class="react-file-line html-div" data-testid="code-cell" data-line-number="422" style="position:relative"><span class="pl-s"># make</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC423" class="react-file-line html-div" data-testid="code-cell" data-line-number="423" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC424" class="react-file-line html-div" data-testid="code-cell" data-line-number="424" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC425" class="react-file-line html-div" data-testid="code-cell" data-line-number="425" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC426" class="react-file-line html-div" data-testid="code-cell" data-line-number="426" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC427" class="react-file-line html-div" data-testid="code-cell" data-line-number="427" style="position:relative"> </<span class="pl-ent">sect2</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC428" class="react-file-line html-div" data-testid="code-cell" data-line-number="428" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC429" class="react-file-line html-div" data-testid="code-cell" data-line-number="429" style="position:relative"> <<span class="pl-ent">sect2</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.systemtap-list-probes<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC430" class="react-file-line html-div" data-testid="code-cell" data-line-number="430" style="position:relative"> <<span class="pl-ent">title</span>>Listing Static Probes with SystemTap</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC431" class="react-file-line html-div" data-testid="code-cell" data-line-number="431" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC432" class="react-file-line html-div" data-testid="code-cell" data-line-number="432" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC433" class="react-file-line html-div" data-testid="code-cell" data-line-number="433" style="position:relative"> The static probes in PHP can be listed using <<span class="pl-ent">filename</span>>stap</<span class="pl-ent">filename</span>>:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC434" class="react-file-line html-div" data-testid="code-cell" data-line-number="434" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC435" class="react-file-line html-div" data-testid="code-cell" data-line-number="435" style="position:relative"> <<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC436" class="react-file-line html-div" data-testid="code-cell" data-line-number="436" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC437" class="react-file-line html-div" data-testid="code-cell" data-line-number="437" style="position:relative"><span class="pl-s"># stap -l 'process.provider("php").mark("*")' -c 'sapi/cli/php -i'</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC438" class="react-file-line html-div" data-testid="code-cell" data-line-number="438" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC439" class="react-file-line html-div" data-testid="code-cell" data-line-number="439" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC440" class="react-file-line html-div" data-testid="code-cell" data-line-number="440" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC441" class="react-file-line html-div" data-testid="code-cell" data-line-number="441" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC442" class="react-file-line html-div" data-testid="code-cell" data-line-number="442" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC443" class="react-file-line html-div" data-testid="code-cell" data-line-number="443" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC444" class="react-file-line html-div" data-testid="code-cell" data-line-number="444" style="position:relative"> This outputs:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC445" class="react-file-line html-div" data-testid="code-cell" data-line-number="445" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC446" class="react-file-line html-div" data-testid="code-cell" data-line-number="446" style="position:relative"> <<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC447" class="react-file-line html-div" data-testid="code-cell" data-line-number="447" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC448" class="react-file-line html-div" data-testid="code-cell" data-line-number="448" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("compile__file__entry")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC449" class="react-file-line html-div" data-testid="code-cell" data-line-number="449" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("compile__file__return")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC450" class="react-file-line html-div" data-testid="code-cell" data-line-number="450" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("error")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC451" class="react-file-line html-div" data-testid="code-cell" data-line-number="451" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("exception__caught")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC452" class="react-file-line html-div" data-testid="code-cell" data-line-number="452" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("exception__thrown")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC453" class="react-file-line html-div" data-testid="code-cell" data-line-number="453" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("execute__entry")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC454" class="react-file-line html-div" data-testid="code-cell" data-line-number="454" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("execute__return")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC455" class="react-file-line html-div" data-testid="code-cell" data-line-number="455" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("function__entry")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC456" class="react-file-line html-div" data-testid="code-cell" data-line-number="456" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("function__return")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC457" class="react-file-line html-div" data-testid="code-cell" data-line-number="457" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("request__shutdown")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC458" class="react-file-line html-div" data-testid="code-cell" data-line-number="458" style="position:relative"><span class="pl-s">process("sapi/cli/php").provider("php").mark("request__startup")</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC459" class="react-file-line html-div" data-testid="code-cell" data-line-number="459" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC460" class="react-file-line html-div" data-testid="code-cell" data-line-number="460" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC461" class="react-file-line html-div" data-testid="code-cell" data-line-number="461" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC462" class="react-file-line html-div" data-testid="code-cell" data-line-number="462" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC463" class="react-file-line html-div" data-testid="code-cell" data-line-number="463" style="position:relative"> </<span class="pl-ent">sect2</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC464" class="react-file-line html-div" data-testid="code-cell" data-line-number="464" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC465" class="react-file-line html-div" data-testid="code-cell" data-line-number="465" style="position:relative"> <<span class="pl-ent">sect2</span> <span class="pl-e">xml</span><span class="pl-e">:</span><span class="pl-e">id</span>=<span class="pl-s"><span class="pl-pds">"</span>features.dtrace.systemtap-examples<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC466" class="react-file-line html-div" data-testid="code-cell" data-line-number="466" style="position:relative"> <<span class="pl-ent">title</span>>SystemTap with PHP Example</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC467" class="react-file-line html-div" data-testid="code-cell" data-line-number="467" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC468" class="react-file-line html-div" data-testid="code-cell" data-line-number="468" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC469" class="react-file-line html-div" data-testid="code-cell" data-line-number="469" style="position:relative"> <<span class="pl-ent">example</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC470" class="react-file-line html-div" data-testid="code-cell" data-line-number="470" style="position:relative"> <<span class="pl-ent">title</span>><<span class="pl-ent">filename</span>>all_probes.stp</<span class="pl-ent">filename</span>> for tracing all PHP Static Probes with SystemTap</<span class="pl-ent">title</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC471" class="react-file-line html-div" data-testid="code-cell" data-line-number="471" style="position:relative"> <<span class="pl-ent">programlisting</span> <span class="pl-e">role</span>=<span class="pl-s"><span class="pl-pds">"</span>shell<span class="pl-pds">"</span></span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC472" class="react-file-line html-div" data-testid="code-cell" data-line-number="472" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC473" class="react-file-line html-div" data-testid="code-cell" data-line-number="473" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("compile__file__entry") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC474" class="react-file-line html-div" data-testid="code-cell" data-line-number="474" style="position:relative"><span class="pl-s"> printf("Probe compile__file__entry\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC475" class="react-file-line html-div" data-testid="code-cell" data-line-number="475" style="position:relative"><span class="pl-s"> printf(" compile_file %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC476" class="react-file-line html-div" data-testid="code-cell" data-line-number="476" style="position:relative"><span class="pl-s"> printf(" compile_file_translated %s\n", user_string($arg2));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC477" class="react-file-line html-div" data-testid="code-cell" data-line-number="477" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC478" class="react-file-line html-div" data-testid="code-cell" data-line-number="478" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("compile__file__return") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC479" class="react-file-line html-div" data-testid="code-cell" data-line-number="479" style="position:relative"><span class="pl-s"> printf("Probe compile__file__return\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC480" class="react-file-line html-div" data-testid="code-cell" data-line-number="480" style="position:relative"><span class="pl-s"> printf(" compile_file %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC481" class="react-file-line html-div" data-testid="code-cell" data-line-number="481" style="position:relative"><span class="pl-s"> printf(" compile_file_translated %s\n", user_string($arg2));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC482" class="react-file-line html-div" data-testid="code-cell" data-line-number="482" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC483" class="react-file-line html-div" data-testid="code-cell" data-line-number="483" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("error") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC484" class="react-file-line html-div" data-testid="code-cell" data-line-number="484" style="position:relative"><span class="pl-s"> printf("Probe error\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC485" class="react-file-line html-div" data-testid="code-cell" data-line-number="485" style="position:relative"><span class="pl-s"> printf(" errormsg %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC486" class="react-file-line html-div" data-testid="code-cell" data-line-number="486" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", user_string($arg2));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC487" class="react-file-line html-div" data-testid="code-cell" data-line-number="487" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", $arg3);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC488" class="react-file-line html-div" data-testid="code-cell" data-line-number="488" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC489" class="react-file-line html-div" data-testid="code-cell" data-line-number="489" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("exception__caught") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC490" class="react-file-line html-div" data-testid="code-cell" data-line-number="490" style="position:relative"><span class="pl-s"> printf("Probe exception__caught\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC491" class="react-file-line html-div" data-testid="code-cell" data-line-number="491" style="position:relative"><span class="pl-s"> printf(" classname %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC492" class="react-file-line html-div" data-testid="code-cell" data-line-number="492" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC493" class="react-file-line html-div" data-testid="code-cell" data-line-number="493" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("exception__thrown") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC494" class="react-file-line html-div" data-testid="code-cell" data-line-number="494" style="position:relative"><span class="pl-s"> printf("Probe exception__thrown\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC495" class="react-file-line html-div" data-testid="code-cell" data-line-number="495" style="position:relative"><span class="pl-s"> printf(" classname %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC496" class="react-file-line html-div" data-testid="code-cell" data-line-number="496" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC497" class="react-file-line html-div" data-testid="code-cell" data-line-number="497" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("execute__entry") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC498" class="react-file-line html-div" data-testid="code-cell" data-line-number="498" style="position:relative"><span class="pl-s"> printf("Probe execute__entry\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC499" class="react-file-line html-div" data-testid="code-cell" data-line-number="499" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC500" class="react-file-line html-div" data-testid="code-cell" data-line-number="500" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", $arg2);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC501" class="react-file-line html-div" data-testid="code-cell" data-line-number="501" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC502" class="react-file-line html-div" data-testid="code-cell" data-line-number="502" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("execute__return") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC503" class="react-file-line html-div" data-testid="code-cell" data-line-number="503" style="position:relative"><span class="pl-s"> printf("Probe execute__return\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC504" class="react-file-line html-div" data-testid="code-cell" data-line-number="504" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC505" class="react-file-line html-div" data-testid="code-cell" data-line-number="505" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", $arg2);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC506" class="react-file-line html-div" data-testid="code-cell" data-line-number="506" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC507" class="react-file-line html-div" data-testid="code-cell" data-line-number="507" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("function__entry") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC508" class="react-file-line html-div" data-testid="code-cell" data-line-number="508" style="position:relative"><span class="pl-s"> printf("Probe function__entry\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC509" class="react-file-line html-div" data-testid="code-cell" data-line-number="509" style="position:relative"><span class="pl-s"> printf(" function_name %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC510" class="react-file-line html-div" data-testid="code-cell" data-line-number="510" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", user_string($arg2));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC511" class="react-file-line html-div" data-testid="code-cell" data-line-number="511" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", $arg3);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC512" class="react-file-line html-div" data-testid="code-cell" data-line-number="512" style="position:relative"><span class="pl-s"> printf(" classname %s\n", user_string($arg4));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC513" class="react-file-line html-div" data-testid="code-cell" data-line-number="513" style="position:relative"><span class="pl-s"> printf(" scope %s\n", user_string($arg5));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC514" class="react-file-line html-div" data-testid="code-cell" data-line-number="514" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC515" class="react-file-line html-div" data-testid="code-cell" data-line-number="515" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("function__return") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC516" class="react-file-line html-div" data-testid="code-cell" data-line-number="516" style="position:relative"><span class="pl-s"> printf("Probe function__return: %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC517" class="react-file-line html-div" data-testid="code-cell" data-line-number="517" style="position:relative"><span class="pl-s"> printf(" function_name %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC518" class="react-file-line html-div" data-testid="code-cell" data-line-number="518" style="position:relative"><span class="pl-s"> printf(" request_file %s\n", user_string($arg2));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC519" class="react-file-line html-div" data-testid="code-cell" data-line-number="519" style="position:relative"><span class="pl-s"> printf(" lineno %d\n", $arg3);</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC520" class="react-file-line html-div" data-testid="code-cell" data-line-number="520" style="position:relative"><span class="pl-s"> printf(" classname %s\n", user_string($arg4));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC521" class="react-file-line html-div" data-testid="code-cell" data-line-number="521" style="position:relative"><span class="pl-s"> printf(" scope %s\n", user_string($arg5));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC522" class="react-file-line html-div" data-testid="code-cell" data-line-number="522" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC523" class="react-file-line html-div" data-testid="code-cell" data-line-number="523" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("request__shutdown") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC524" class="react-file-line html-div" data-testid="code-cell" data-line-number="524" style="position:relative"><span class="pl-s"> printf("Probe request__shutdown\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC525" class="react-file-line html-div" data-testid="code-cell" data-line-number="525" style="position:relative"><span class="pl-s"> printf(" file %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC526" class="react-file-line html-div" data-testid="code-cell" data-line-number="526" style="position:relative"><span class="pl-s"> printf(" request_uri %s\n", user_string($arg2));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC527" class="react-file-line html-div" data-testid="code-cell" data-line-number="527" style="position:relative"><span class="pl-s"> printf(" request_method %s\n", user_string($arg3));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC528" class="react-file-line html-div" data-testid="code-cell" data-line-number="528" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC529" class="react-file-line html-div" data-testid="code-cell" data-line-number="529" style="position:relative"><span class="pl-s">probe process("sapi/cli/php").provider("php").mark("request__startup") {</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC530" class="react-file-line html-div" data-testid="code-cell" data-line-number="530" style="position:relative"><span class="pl-s"> printf("Probe request__startup\n");</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC531" class="react-file-line html-div" data-testid="code-cell" data-line-number="531" style="position:relative"><span class="pl-s"> printf(" file %s\n", user_string($arg1));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC532" class="react-file-line html-div" data-testid="code-cell" data-line-number="532" style="position:relative"><span class="pl-s"> printf(" request_uri %s\n", user_string($arg2));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC533" class="react-file-line html-div" data-testid="code-cell" data-line-number="533" style="position:relative"><span class="pl-s"> printf(" request_method %s\n", user_string($arg3));</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC534" class="react-file-line html-div" data-testid="code-cell" data-line-number="534" style="position:relative"><span class="pl-s">}</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC535" class="react-file-line html-div" data-testid="code-cell" data-line-number="535" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC536" class="react-file-line html-div" data-testid="code-cell" data-line-number="536" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC537" class="react-file-line html-div" data-testid="code-cell" data-line-number="537" style="position:relative"> </<span class="pl-ent">example</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC538" class="react-file-line html-div" data-testid="code-cell" data-line-number="538" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC539" class="react-file-line html-div" data-testid="code-cell" data-line-number="539" style="position:relative"> <<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC540" class="react-file-line html-div" data-testid="code-cell" data-line-number="540" style="position:relative"> The above script will trace all core PHP static probe points</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC541" class="react-file-line html-div" data-testid="code-cell" data-line-number="541" style="position:relative"> throughout the duration of a running PHP script:</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC542" class="react-file-line html-div" data-testid="code-cell" data-line-number="542" style="position:relative"> <<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC543" class="react-file-line html-div" data-testid="code-cell" data-line-number="543" style="position:relative"> <<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC544" class="react-file-line html-div" data-testid="code-cell" data-line-number="544" style="position:relative"><span class="pl-s"><span class="pl-pds"><![CDATA[</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC545" class="react-file-line html-div" data-testid="code-cell" data-line-number="545" style="position:relative"><span class="pl-s"># stap -c 'sapi/cli/php test.php' all_probes.stp</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC546" class="react-file-line html-div" data-testid="code-cell" data-line-number="546" style="position:relative"><span class="pl-s"><span class="pl-pds">]]></span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC547" class="react-file-line html-div" data-testid="code-cell" data-line-number="547" style="position:relative"> </<span class="pl-ent">programlisting</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC548" class="react-file-line html-div" data-testid="code-cell" data-line-number="548" style="position:relative"> </<span class="pl-ent">informalexample</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC549" class="react-file-line html-div" data-testid="code-cell" data-line-number="549" style="position:relative"> </<span class="pl-ent">para</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC550" class="react-file-line html-div" data-testid="code-cell" data-line-number="550" style="position:relative"> </<span class="pl-ent">sect2</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC551" class="react-file-line html-div" data-testid="code-cell" data-line-number="551" style="position:relative"> </<span class="pl-ent">sect1</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC552" class="react-file-line html-div" data-testid="code-cell" data-line-number="552" style="position:relative"></<span class="pl-ent">chapter</span>></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC553" class="react-file-line html-div" data-testid="code-cell" data-line-number="553" style="position:relative"> </div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC554" class="react-file-line html-div" data-testid="code-cell" data-line-number="554" style="position:relative"><span class="pl-c"><span class="pl-c"><!--</span> Keep this comment at the end of the file</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC555" class="react-file-line html-div" data-testid="code-cell" data-line-number="555" style="position:relative"><span class="pl-c">vim600: syn=xml fen fdm=syntax fdl=2 si</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC556" class="react-file-line html-div" data-testid="code-cell" data-line-number="556" style="position:relative"><span class="pl-c">vim: et tw=78 syn=sgml</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC557" class="react-file-line html-div" data-testid="code-cell" data-line-number="557" style="position:relative"><span class="pl-c">vi: ts=1 sw=1</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC558" class="react-file-line html-div" data-testid="code-cell" data-line-number="558" style="position:relative"><span class="pl-c"><span class="pl-c">--></span></span></div></div></div></div></div></div><div id="copilot-button-container"></div></div><div id="highlighted-line-menu-container"></div></div></div><button hidden="" data-testid="hotkey-button" data-hotkey-scope="read-only-cursor-text-area"></button><button hidden=""></button></section></div></div></div> <!-- --> <!-- --> </div></div></div><div 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color-bg-transparent" data-action="click:cookie-consent-link#showConsentManagement" data-analytics-event="{"location":"footer","action":"dont_share_info","context":"subfooter","tag":"link","label":"dont_share_info_link_subfooter_footer"}" > Do not share my personal information </button> </cookie-consent-link> </li> </ul> </nav> </div> </footer> <ghcc-consent id="ghcc" class="position-fixed bottom-0 left-0" style="z-index: 999999" data-initial-cookie-consent-allowed="" data-cookie-consent-required="false"></ghcc-consent> <div id="ajax-error-message" class="ajax-error-message flash flash-error" hidden> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-alert"> <path d="M6.457 1.047c.659-1.234 2.427-1.234 3.086 0l6.082 11.378A1.75 1.75 0 0 1 14.082 15H1.918a1.75 1.75 0 0 1-1.543-2.575Zm1.763.707a.25.25 0 0 0-.44 0L1.698 13.132a.25.25 0 0 0 .22.368h12.164a.25.25 0 0 0 .22-.368Zm.53 3.996v2.5a.75.75 0 0 1-1.5 0v-2.5a.75.75 0 0 1 1.5 0ZM9 11a1 1 0 1 1-2 0 1 1 0 0 1 2 0Z"></path> </svg> <button type="button" class="flash-close js-ajax-error-dismiss" aria-label="Dismiss error"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg> </button> You can’t perform that action at this time. </div> <template id="site-details-dialog"> <details class="details-reset details-overlay details-overlay-dark lh-default color-fg-default hx_rsm" open> <summary role="button" aria-label="Close dialog"></summary> <details-dialog class="Box Box--overlay d-flex flex-column anim-fade-in fast hx_rsm-dialog hx_rsm-modal"> <button class="Box-btn-octicon m-0 btn-octicon position-absolute right-0 top-0" type="button" aria-label="Close dialog" data-close-dialog> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-x"> <path d="M3.72 3.72a.75.75 0 0 1 1.06 0L8 6.94l3.22-3.22a.749.749 0 0 1 1.275.326.749.749 0 0 1-.215.734L9.06 8l3.22 3.22a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215L8 9.06l-3.22 3.22a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042L6.94 8 3.72 4.78a.75.75 0 0 1 0-1.06Z"></path> </svg> </button> <div class="octocat-spinner my-6 js-details-dialog-spinner"></div> </details-dialog> </details> </template> <div class="Popover js-hovercard-content position-absolute" style="display: none; outline: none;"> <div class="Popover-message Popover-message--bottom-left Popover-message--large Box color-shadow-large" style="width:360px;"> </div> </div> <template id="snippet-clipboard-copy-button"> <div class="zeroclipboard-container position-absolute right-0 top-0"> <clipboard-copy aria-label="Copy" class="ClipboardButton btn js-clipboard-copy m-2 p-0" data-copy-feedback="Copied!" data-tooltip-direction="w"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy js-clipboard-copy-icon m-2"> <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path> </svg> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check js-clipboard-check-icon color-fg-success d-none m-2"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path> </svg> </clipboard-copy> </div> </template> <template id="snippet-clipboard-copy-button-unpositioned"> <div class="zeroclipboard-container"> <clipboard-copy aria-label="Copy" class="ClipboardButton btn btn-invisible js-clipboard-copy m-2 p-0 d-flex flex-justify-center flex-items-center" data-copy-feedback="Copied!" data-tooltip-direction="w"> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy js-clipboard-copy-icon"> <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path> </svg> <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check js-clipboard-check-icon color-fg-success d-none"> <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path> </svg> </clipboard-copy> </div> </template> </div> <div id="js-global-screen-reader-notice" class="sr-only mt-n1" aria-live="polite" aria-atomic="true" ></div> <div id="js-global-screen-reader-notice-assertive" class="sr-only mt-n1" aria-live="assertive" aria-atomic="true"></div> </body> </html>