# stap -l 'process.provider("php").mark("*")' -c 'sapi/cli/php -i'
This can also be archived by:
stap -l 'process("sapi/cli/php").mark("*")'
And, no need to be root to run this command.
Auf einigen Linux-Distributionen kann das Tracing-Tool SystemTap verwendet werden, um die statischen DTrace-Sonden von PHP zu überwachen. Diese Möglichkeit steht mit PHP 5.4.20 und PHP 5.5 zur Verfügung.
Installieren des SystemTap-SDT-Entwicklungspakets:
# yum install systemtap-sdt-devel
Installieren von PHP mit aktivierten DTrace-Sonden:
# ./configure --enable-dtrace ... # make
Die statischen Sonden in PHP können mittels stap aufgelistet werden:
# stap -l 'process.provider("php").mark("*")' -c 'sapi/cli/php -i'
This outputs:
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")
Beispiel #1 all_probes.stp - Verfolgung aller statischen PHP-Sonden mit SystemTap
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)); }
Das obige Skript verfolgt während der gesamten Dauer eines laufenden PHP-Skripts alle statischen Sondenpunkte des PHP-Kerns:
# stap -c 'sapi/cli/php test.php' all_probes.stp
# stap -l 'process.provider("php").mark("*")' -c 'sapi/cli/php -i'
This can also be archived by:
stap -l 'process("sapi/cli/php").mark("*")'
And, no need to be root to run this command.