tracing/probes: Fix tracepoint event with $arg* to fetch correct argument

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To hide the first dummy 'data' argument on the tracepoint probe events,
the BTF argument array was modified (skip the first argument for tracepoint),
but the '$arg*' meta argument parser missed that.

Fix to increment the argument index if it is tracepoint probe. And decrement
the index when searching the type of the argument.

Link: https://lore.kernel.org/all/168657113778.3038017.12245893750241701312.stgit@mhiramat.roam.corp.google.com/

Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

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This commit is contained in:

Masami Hiramatsu (Google) 2023-06-12 20:58:57 +09:00

parent a2bd0c08a4

commit 53431798f4

1 changed files with 8 additions and 2 deletions

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kernel/trace/trace_probe.c

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