linux-kernel - Re: [PATCH v2 4/4] rehook, fprobe: do not trace rethook related functions

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Date:   Wed, 17 May 2023 10:00:13 +0800
From:   Ze Gao <zegao2021@...il.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Masami Hiramatsu <mhiramat@...nel.org>,
        Albert Ou <aou@...s.berkeley.edu>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vasily Gorbik <gor@...ux.ibm.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-s390@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
        bpf@...r.kernel.org, Conor Dooley <conor@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>, Yonghong Song <yhs@...com>,
        Ze Gao <zegao@...cent.com>
Subject: Re: [PATCH v2 4/4] rehook, fprobe: do not trace rethook related functions

Got it!  Thank you, Steevn.  Maybe I can give it a try later :)

Regards,
Ze

On Tue, May 16, 2023 at 10:20 PM Steven Rostedt <rostedt@...dmis.org> wrote:
>
> On Tue, 16 May 2023 15:18:30 +0800
> Ze Gao <zegao2021@...il.com> wrote:
>
> >  CFLAGS_REMOVE_early.o                = $(CC_FLAGS_FTRACE)
> > +CFLAGS_REMOVE_rethook.o              = $(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 = -pg
> >  CFLAGS_REMOVE_early_printk.o = -pg
> >  CFLAGS_REMOVE_head64.o = -pg
> >  CFLAGS_REMOVE_sev.o = -pg
> > +CFLAGS_REMOVE_rethook.o = -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                         := n
> > --