GNU bug report logs - #75846
31.0.50; feature/igc pgtk build crash on Linux/wayland (kde plasma6)

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Message #14 received at 75846 <at> debbugs.gnu.org (full text, mbox):

From: Eval Exec <execvy <at> gmail.com>
To: Pip Cet <pipcet <at> protonmail.com>
Cc: 75846 <at> debbugs.gnu.org
Subject: Re: bug#75846: 31.0.50; feature/igc pgtk build crash on Linux/wayland
 (kde plasma6)
Date: Sun, 26 Jan 2025 11:08:13 +0800

The CFLAGS in config.log is:
```bash
$ grep "^CFLAGS" config.log
CFLAGS='-g3 -ggdb -O3 -march=native -flto=20 -ffat-lto-objects'
```

On Sun, Jan 26, 2025 at 11:06 AM Eval Exec <execvy <at> gmail.com> wrote:
>
> I confirmed I didn't include -fno-omit-frame-pointer, but I find I
> have -fno-omit-frame-pointer in MPS_CFLAGS:
>
> ```bash
> $ cat config.log | grep -C3 fno-omit-frame
> MODULES_OBJ='emacs-module.o'
> MODULES_SECONDARY_SUFFIX=''
> MODULES_SUFFIX='.so'
> MPS_CFLAGS='-fno-omit-frame-pointer'
> NANOSLEEP_LIB=''
> NATIVE_COMPILATION_AOT='yes'
> NDK_BUILD_ABI=''
> ```
>
> And I build emacs by:
>
> #!/usr/bin/env bash
> set -ex
>
> make extraclean
>
> BRANCH_NAME=$(git branch --show-current | sed 's/\//_/g')
> COMMIT_ID=$(git rev-parse HEAD)
> BUILD_DIR=${BRANCH_NAME}-${COMMIT_ID}-pgtk-gdb
> INSTALL_PREFIX=$(realpath ../emacs-build/${BUILD_DIR})
>
> ./autogen.sh
> ./configure  CFLAGS='-g3 -ggdb -O3 -march=native' \
>   --prefix=${INSTALL_PREFIX} \
>   --with-imagemagick  \
>   --with-mps=yes \
>   --with-pgtk \
>   --with-modules \
>   --with-cairo --with-cairo-xcb \
>   --without-compress-install \
>   --with-mailutils\
>   --enable-link-time-optimization \
>   --with-tree-sitter --with-xinput2 \
>   --with-dbus \
>   --with-native-compilation=aot \
>   --with-file-notification=inotify\
>   && make -j20 install
>
> On Sun, Jan 26, 2025 at 11:02 AM Pip Cet <pipcet <at> protonmail.com> wrote:
> >
> > "Eval EXEC" <execvy <at> gmail.com> writes:
> >
> > > Hello,
> > >
> > > I'm helping to test feature/igc branch on my machine, and I got a crash,
> > > the build doesn't have gdb debug symbols, and I'm going to recompile
> > > emacs with gdb debug symbol to reproduce it.
> >
> > Thanks for the report!
> >
> > Reproducing this with a gdb backtrace would be great; it's possible
> > there's no additional information in there, but it's also possible it'll
> > reveal the problem.
> >
> > Could you confirm (from the build log) that the
> > "-fno-omit-frame-pointer" option was present when building Emacs?
> >
> > > In GNU Emacs 31.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
> > >  3.24.43, cairo version 1.18.2) of 2025-01-25 built on Mufasa
> > > Repository revision: 67e602105774a31508239a6d2a6a05a4d4c5d363
> > > Repository branch: feature/igc
> > > System Description: NixOS 24.11 (Vicuna)
> > >
> > > Configured using:
> > >  'configure 'CFLAGS=-O3 -march=native'
> >
> > I tried configuring like that, and my CFLAGS didn't include
> > -fno-omit-frame-pointer.
> >
> > Stefan Kangas, you added the code in commit
> > 2dfef251453f591c51d983c3e5148efc1d534760.  Any idea why it might not be
> > working?
> >
> > Pip
> >

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