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Re: [PATCH][BZ #19490] Add unwind descriptors for x86_64 _mcount and fentry

From: Paul Pluzhnikov <ppluzhnikov at google dot com>
To: Andreas Schwab <schwab at suse dot de>
Cc: "H.J. Lu" <hjl dot tools at gmail dot com>, GLIBC Devel <libc-alpha at sourceware dot org>
Date: Thu, 3 Mar 2016 09:01:34 -0800
Subject: Re: [PATCH][BZ #19490] Add unwind descriptors for x86_64 _mcount and __fentry__
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References: <CALoOobPzA=QaRyua2KVLR5CtKoks_Tz=c45SwWBg18sY0X4kWg at mail dot gmail dot com> <20160222091457 dot GJ19841 at vapier dot lan> <CALoOobMWtqPyM99G4mX56nV=ymqNGFKEwWMAmc0h_Uff_K2yjA at mail dot gmail dot com> <20160226034043 dot GM19841 at vapier dot lan> <CALoOobMtV8tWzW5rxU-UUN0Q7Pc3TCVUpfXXr3kOUoodr+0n0w at mail dot gmail dot com> <CAMe9rOpAgpdPTPz7ac_kyfkCG19YQwQTyhQzPRWuN8BEg5aS-Q at mail dot gmail dot com> <CALoOobOYv1i+D41VOECjQtyKeDF3LBGdT=z37gH3zMEJ=jctQQ at mail dot gmail dot com> <mvmio14neuh dot fsf at hawking dot suse dot de>

On Thu, Mar 3, 2016 at 12:30 AM, Andreas Schwab <schwab@suse.de> wrote:
> Paul Pluzhnikov <ppluzhnikov@google.com> writes:
>
>> Using CALL_MCOUNT in implementation of _mcount isn't going to end well.
>
> _mcount needs to be arranged to be compiled without PROF, like the
> noprof routines in gmon/Makefile.

Done by HJ in commit 87a07a437656aede6f303688b55ae1834962bee2.

Updated patch attached. Tested on Linux/x86_64.

Thanks,

2016-03-03  Paul Pluzhnikov  <ppluzhnikov@google.com>

        [BZ #19490]
        * sysdeps/x86_64/_mcount.S (_mcount): Add unwind descriptor.
        (__fentry__): Likewise


-- 
Paul Pluzhnikov

Attachment: glibc-bz19490-20160303.txt
Description: Text document

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References:
- Re: [PATCH][BZ #19490] Add unwind descriptors for x86_64 _mcount and __fentry__
  - From: Paul Pluzhnikov
- Re: [PATCH][BZ #19490] Add unwind descriptors for x86_64 _mcount and __fentry__
  - From: H.J. Lu
- Re: [PATCH][BZ #19490] Add unwind descriptors for x86_64 _mcount and __fentry__
  - From: Paul Pluzhnikov
- Re: [PATCH][BZ #19490] Add unwind descriptors for x86_64 _mcount and __fentry__
  - From: Andreas Schwab

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Re: [PATCH][BZ #19490] Add unwind descriptors for x86_64 _mcount and __fentry__

Re: [PATCH][BZ #19490] Add unwind descriptors for x86_64 _mcount and fentry