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From:   Ze Gao <zegao2021@gmail.com>
Date:   Wed, 17 May 2023 10:00:13 +0800
Message-ID: <CAD8CoPA=VQOnnZujzH7n3X1t=PpoduB20vM0KQh8aPubySzCzw@mail.gmail.com>
Subject: Re: [PATCH v2 4/4] rehook, fprobe: do not trace rethook related functions
To:     Steven Rostedt <rostedt@goodmis.org>
Cc:     Masami Hiramatsu <mhiramat@kernel.org>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Alexander Gordeev <agordeev@linux.ibm.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Borislav Petkov <bp@alien8.de>,
        Christian Borntraeger <borntraeger@linux.ibm.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Heiko Carstens <hca@linux.ibm.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Sven Schnelle <svens@linux.ibm.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Vasily Gorbik <gor@linux.ibm.com>, x86@kernel.org,
        linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
        linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
        bpf@vger.kernel.org, Conor Dooley <conor@kernel.org>,
        Jiri Olsa <jolsa@kernel.org>, Yonghong Song <yhs@fb.com>,
        Ze Gao <zegao@tencent.com>
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Got it!  Thank you, Steevn.  Maybe I can give it a try later :)

Regards,
Ze

On Tue, May 16, 2023 at 10:20=E2=80=AFPM Steven Rostedt <rostedt@goodmis.or=
g> wrote:
>
> On Tue, 16 May 2023 15:18:30 +0800
> Ze Gao <zegao2021@gmail.com> wrote:
>
> >  CFLAGS_REMOVE_early.o                =3D $(CC_FLAGS_FTRACE)
> > +CFLAGS_REMOVE_rethook.o              =3D $(CC_FLAGS_FTRACE)
> >
> >  endif
> >
> > diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
> > index dd61752f4c96..4070a01c11b7 100644
> > --- a/arch/x86/kernel/Makefile
> > +++ b/arch/x86/kernel/Makefile
> > @@ -17,6 +17,7 @@ CFLAGS_REMOVE_ftrace.o =3D -pg
> >  CFLAGS_REMOVE_early_printk.o =3D -pg
> >  CFLAGS_REMOVE_head64.o =3D -pg
> >  CFLAGS_REMOVE_sev.o =3D -pg
> > +CFLAGS_REMOVE_rethook.o =3D -pg
>
> Unrelated to this patch, but someday we need to change the -pg above to
> $(CC_FLAGS_FTRACE).
>
> -- Steve
>
>
> >  endif
> >
> >  KASAN_SANITIZE_head$(BITS).o                         :=3D n
> > --