https://github.com/torvalds/linux
Revision 6a832ec3d680b3a4f4fad5752672827d71bae501 authored by Steven Rostedt (Google) on 20 August 2022, 13:43:20 UTC, committed by Steven Rostedt (Google) on 21 August 2022, 19:56:08 UTC
Currently, if a symbol "@" is attempted to be used with an event probe
(eprobes), it will cause a NULL pointer dereference crash.
Both kprobes and uprobes can reference data other than the main registers.
Such as immediate address, symbols and the current task name. Have eprobes
do the same thing.
For "comm", if "comm" is used and the event being attached to does not
have the "comm" field, then make it the "$comm" that kprobes has. This is
consistent to the way histograms and filters work.
Link: https://lkml.kernel.org/r/20220820134401.136924220@goodmis.org
Cc: stable@vger.kernel.org
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Fixes: 7491e2c44278 ("tracing: Add a probe that attaches to trace events")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
1 parent f04dec9
Tip revision: 6a832ec3d680b3a4f4fad5752672827d71bae501 authored by Steven Rostedt (Google) on 20 August 2022, 13:43:20 UTC
tracing/eprobes: Have event probes be consistent with kprobes and uprobes
tracing/eprobes: Have event probes be consistent with kprobes and uprobes
Tip revision: 6a832ec
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| .clang-format | -rw-r--r-- | 19.8 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 71 bytes |
| .gitattributes | -rw-r--r-- | 62 bytes |
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| COPYING | -rw-r--r-- | 496 bytes |
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| Kbuild | -rw-r--r-- | 1.3 KB |
| Kconfig | -rw-r--r-- | 555 bytes |
| MAINTAINERS | -rw-r--r-- | 651.6 KB |
| Makefile | -rw-r--r-- | 64.1 KB |
| README | -rw-r--r-- | 727 bytes |
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