Re: elfutils does not compile with gcc 12.2.0

[Nick via Elfutils-devel]

On 8/24/22 23:01, Dmitry V. Levin wrote:


On Wed, Aug 24, 2022 at 10:51:13PM +0200, Nick via Elfutils-devel wrote:

I try to compile elfutils on OpenWrt with the newest gcc 12.2.0 version.
However, it fails due to -Werror=use-after-free. A workaround is a patch
that I found on the mailinglist, to disable -Werror
(https://sourceware.org/legacy-ml/elfutils-devel/imported/msg00994.html)
I modified it to apply to newest elfutils version. The error with
elfutils 0.187 and gcc 12.2.0:

In function 'bigger_buffer',
      inlined from '__libdw_gunzip' at gzip.c:376:12:
gzip.c:98:9: error: pointer may be used after 'realloc'
[-Werror=use-after-free]
     98 | b = realloc (state->buffer, more -= 1024);
    | ^
gzip.c:96:13: note: call to 'realloc' here
     96 |   char *b = realloc (state->buffer, more);
    | ^

This warning is definitely wrong, looks like a regression in gcc, please
report this to compiler people, otherwise they will never know they
introduced a bug that needs fixing.
I think it is not the only failure. I added a comment under this already 
existing bug report:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104069#c24

If you look at this comment I am not sure if that is ever fixed:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104069#c20
The write here about using "pragma" statements to suppress the warning.
What about introducing the disabling of werror by a configure flag?

Bests
Nick

Artix Linux debuginfod

[Christos Nouskas via Elfutils-devel]

Hello there!

Artix Linux has deployed[0] its own instance of debuginfod and we'd be happy
if you added it to your federated server list. Our CI creates debug packages
for all eligible software and our -debug repos are currently getting
populated. The server is available at https://debuginfod.artixlinux.org

Thank you.

[0]
https://lists.artixlinux.org/archives/artix-announce/2022-August/06.html

-- 
https://artixlinux.org



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Re: Artix Linux debuginfod

[Frank Ch. Eigler via Elfutils-devel]

Hi -

> Artix Linux has deployed[0] its own instance of debuginfod and we'd be happy
> if you added it to your federated server list. Our CI creates debug packages
> for all eligible software and our -debug repos are currently getting
> populated. The server is available at https://debuginfod.artixlinux.org

Thanks for letting us know!  I added it to our index page and will look into
federation.

https://sourceware.org/elfutils/Debuginfod.html

- FChE