GNU bug report logs - #63365
30.0.50; GCC 13.1 breaks building Emacs with native-compilation

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Message #164 received at 63365 <at> debbugs.gnu.org (full text, mbox):

From: Andrea Corallo <acorallo <at> gnu.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 63365 <at> debbugs.gnu.org, arash <at> gnu.org, svraka.andras <at> gmail.com,
 cyril.arnould <at> outlook.com
Subject: Re: bug#63365: 30.0.50; GCC 13.1 breaks building Emacs with
 native-compilation
Date: Sun, 25 Jun 2023 14:11:15 -0400

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Andrea Corallo <acorallo <at> gnu.org>
>> Cc: Arash Esbati <arash <at> gnu.org>,  cyril.arnould <at> outlook.com,
>>   63365 <at> debbugs.gnu.org,  svraka.andras <at> gmail.com
>> Date: Sun, 25 Jun 2023 09:51:13 -0400
>> 
>> Maybe someone should compare the two binaries (with and without
>> -foptimize-sibling-calls) to understand which compilation unit (and
>> which function) differs in details.
>
> How does one compare binaries in a useful way?  The Emacs binary is
> AFAIR around 20MB even when stripped of all symbols.

That's a good question, for elf there are specific tools for that, even
just readelf can output function sizes and that's a good starting point.

For Windows I've idea (I'm assuming Windows is not elf based).

  Andrea

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