Re: : [PATCH] ftrace/x86: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak functions

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Subject: Re: : [PATCH] ftrace/x86: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak functions
From: Steven Rostedt <rostedt@xxxxxxxxxxx>
Date: Sat, 7 May 2022 09:53:04 -0400
Cc: LKML <linux-kernel@xxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx>, Masami Hiramatsu <mhiramat@xxxxxxxxxx>, Jiri Olsa <jolsa@xxxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Networking <netdev@xxxxxxxxxxxxxxx>, bpf <bpf@xxxxxxxxxxxxxxx>, Martin KaFai Lau <kafai@xxxxxx>, Song Liu <songliubraving@xxxxxx>, Yonghong Song <yhs@xxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxxxx>, x86@xxxxxxxxxx
In-reply-to: <YnV5NQ6lMwFY05nf@hirez.programming.kicks-ass.net>

On Fri, 6 May 2022 21:38:29 +0200
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> You forgot about IBT again? __fentry__ no longer lives at +0 on x86
> anymore.

I didn't forget. It was that the kernel I wrote this for didn't have it ;-)

I wasn't sure if it was accepted into mainline yet.

-- Steve

References:
- : [PATCH] ftrace/x86: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak functions
  - From: Steven Rostedt
- Re: : [PATCH] ftrace/x86: Add FTRACE_MCOUNT_MAX_OFFSET to avoid adding weak functions
  - From: Peter Zijlstra

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