Server : Apache System : Linux server2.corals.io 4.18.0-348.2.1.el8_5.x86_64 #1 SMP Mon Nov 15 09:17:08 EST 2021 x86_64 User : corals ( 1002) PHP Version : 7.4.33 Disable Function : exec,passthru,shell_exec,system Directory :  /opt/rh/gcc-toolset-11/root/usr/share/systemtap/examples/general/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

title: Callgraph Tracing with Verbose Arguments
name: para-callgraph-verbose.stp
version: 1.0
author: anonymous
keywords: trace callgraph
subsystem: any
status: proposed
exit: user-controlled
output: trace
scope: system-wide
description: Print a timed per-thread microsecond-timed callgraph, complete with pretty-printed function parameters and return values.  The first parameter names the function probe points to trace.  The optional second parameter names the probe points for trigger functions, which acts to enable tracing for only those functions that occur while the current thread is nested within the trigger.
test_check: stap -p4 para-callgraph-verbose.stp 'kernel.function("*@fs/proc*.c")' 'kernel.function("vfs_read")'
test_installcheck: stap para-callgraph-verbose.stp 'kernel.function("*@fs/proc*.c")' 'kernel.function("vfs_read")' -c "cat /proc/sys/vm/* || true"