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Probes update for v6.8:

Browse Source 
- Kprobes trace event to show the actual function name in notrace-symbol
   warning. Instead of using user specified symbol name, use "%ps" printk
   format to show the actual symbol at the probe address. Since kprobe
   event accepts the offset from symbol which is bigger than the symbol
   size, user specified symbol may not be the actual probed symbol.
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Merge tag 'probes-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes update from Masami Hiramatsu:

 - Update the Kprobes trace event to show the actual function name in
   notrace-symbol warning.

   Instead of using the user specified symbol name, use "%ps" printk
   format to show the actual symbol at the probe address. Since kprobe
   event accepts the offset from symbol which is bigger than the symbol
   size, the user specified symbol may not be the actual probed symbol.

* tag 'probes-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  trace/kprobe: Display the actual notrace function when rejecting a probe
This commit is contained in:
Linus Torvalds 2024-01-18 14:21:22 -08:00
commit 5b890ad456
1 changed files with 2 additions and 2 deletions
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4
kernel/trace/trace_kprobe.c
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@ -487,8 +487,8 @@ static int __register_trace_kprobe(struct trace_kprobe *tk)
return -EINVAL;
if (within_notrace_func(tk)) {
pr_warn("Could not probe notrace function %s\n",
trace_kprobe_symbol(tk));
pr_warn("Could not probe notrace function %ps\n",
(void *)trace_kprobe_address(tk));
return -EINVAL;
}