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* Documentation: tracing: Fix spelling mistakesSaurav Shah2024-05-071-2/+2
| | | | | | | | Fix spelling mistakes in the documentation. Signed-off-by: Saurav Shah <sauravshah.31@gmail.com> Link: https://lore.kernel.org/r/20240501233659.25441-1-sauravshah.31@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* Documentation: tracing: Add entry argument access at function exitMasami Hiramatsu (Google)2024-03-071-0/+31
| | | | | | | | Add a notes about the entry argument access at function exit probes for kprobes and fprobe trace event. Link: https://lore.kernel.org/all/170952367549.229804.8843506960483577062.stgit@devnote2/ Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
* Documentation: tracing: Add a note about argument and retval accessMasami Hiramatsu (Google)2023-11-101-2/+6
| | | | | | | | | | | | Add a note about the argument and return value accecss will be best effort. Depending on the type, it will be passed via stack or a pair of the registers, but $argN and $retval only support the single register access. Link: https://lore.kernel.org/all/169556269377.146934.14829235476649685954.stgit@devnote2/ Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
* Documentation: tracing: Update fprobe event example with BTF fieldMasami Hiramatsu (Google)2023-08-231-18/+46
| | | | | | | | Update fprobe event example with BTF data structure field specification. Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reviewed-by: Alan Maguire <alan.maguire@oracle.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
* Documentation: Fix typo of reference file nameMasami Hiramatsu (Google)2023-06-231-1/+1
| | | | | | | | | | | Fix a typo of Documentation/trace/fprobe.rst. Link: https://lore.kernel.org/all/168584575125.2056209.5771945721143181243.stgit@mhiramat.roam.corp.google.com/ Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202306040144.aD72UzkF-lkp@intel.com/ Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
* Documentation: tracing/probes: Add fprobe event tracing documentMasami Hiramatsu (Google)2023-06-061-0/+188
Add a documentation about fprobe event tracing including tracepoint probe event and BTF argument. Link: https://lore.kernel.org/all/168507479345.913472.2804569685436422001.stgit@mhiramat.roam.corp.google.com/ Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
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