tracing: fprobe: use ftrace if CONFIG_DYNAMIC_FTRACE_WITH_ARGS

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For now, we will use ftrace for the fprobe if fp->exit_handler not exists
and CONFIG_DYNAMIC_FTRACE_WITH_REGS is enabled.

However, CONFIG_DYNAMIC_FTRACE_WITH_REGS is not supported by some arch,
such as arm. What we need in the fprobe is the function arguments, so we
can use ftrace for fprobe if CONFIG_DYNAMIC_FTRACE_WITH_ARGS is enabled.

Therefore, use ftrace if CONFIG_DYNAMIC_FTRACE_WITH_REGS or
CONFIG_DYNAMIC_FTRACE_WITH_ARGS enabled.

Link: https://lore.kernel.org/all/20251103063434.47388-1-dongml2@chinatelecom.cn/

Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

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Menglong Dong 2025-11-03 14:34:34 +08:00 • committed by Masami Hiramatsu (Google)

parent 08ed5c81f6

commit cd06078a38

1 changed files with 22 additions and 10 deletions

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kernel/trace/fprobe.c

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