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Re: gold vs libc
- From: Rafael EspÃndola <rafael dot espindola at gmail dot com>
- To: Cary Coutant <ccoutant at google dot com>
- Cc: Roland McGrath <roland at hack dot frob dot com>, Ian Lance Taylor <iant at google dot com>, Alan Modra <amodra at gmail dot com>, "GNU C. Library" <libc-alpha at sourceware dot org>, Binutils <binutils at sourceware dot org>
- Date: Thu, 11 Sep 2014 12:44:58 -0400
- Subject: Re: gold vs libc
- Authentication-results: sourceware.org; auth=none
- References: <20140330042516 dot 1A88E74481 at topped-with-meat dot com> <20140330045552 dot GX18201 at bubble dot grove dot modra dot org> <20140330050615 dot 7DC5774481 at topped-with-meat dot com> <CAKOQZ8wPgdHfA9QJWQ9yVO9gVQKL=HF-rpuipCBxzsx3=TcqwA at mail dot gmail dot com> <20140331200446 dot A09B074430 at topped-with-meat dot com> <CAKOQZ8x19YZ_oyJXyxe9JST4nfaG8dDvVrdf-vmgkNWydrpsrw at mail dot gmail dot com> <20140331214025 dot E61517447E at topped-with-meat dot com> <CAKOQZ8x1W0YxJSq+X74EjMj7_02uTZq82qzhmF=oQ-cTd4S1mQ at mail dot gmail dot com> <CAHACq4oRKDGKAUu3octDCxKg2EueCyf8kHWj0t8g9+LmE3JagQ at mail dot gmail dot com> <20140910225238 dot 0B6362C39CF at topped-with-meat dot com> <CAHACq4rBr76jL+qo7Va03Ewv7PkLfrJA+_tewn7ZnMTpxBO+ug at mail dot gmail dot com> <CAHACq4qYAHTRxAzvpgRXTBZbc2n4ZVmYhTQvc38mpiaGssSKnw at mail dot gmail dot com>
On 11 September 2014 12:05, Cary Coutant <ccoutant@google.com> wrote:
>> I wouldn't mind simply making
>> __EH_FRAME_BEGIN__ and __EH_FRAME_END__ linker-defined symbols that
>> would override any definitions found in the object files.
>
> Ah, now I see that this is what Alan was referring to. What I didn't
> like about Rafael's suggestion was the idea that the linker would
> special-case the sections based on what symbols were defined in them.
> If his suggestion was simply to override any definitions with the
> linker's own definitions, then my objection was misfounded.
Yes, that is what I meant. The linker would just know
__EH_FRAME_BEGIN__ to part of the format of .eh_frame.
Cheers,
Rafael