[英雄帖] fix LibreOffice build crash

[xen0n]

<snip>
S=/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2 && I=$S/instdir && W=$S/workdir &&  rm -f $W/Gallery/sounds/* && RESPON
SEFILE=/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/temp/gbuild.sqGuZu &&   ( (  LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}"$I/progra
m:$I/program"   $I/program/gengal.bin --build-tree --destdir file://$S/extras/source/gallery --name "sounds" --path $W/Gallery/sounds --filenames file://$RESP
ONSEFILE -env:UserInstallation=file://$W/Gallery/sounds/user ) >  $W/Gallery/sounds.done.log  2>&1 || ( cat  $W/Gallery/sounds.done.log  && false ) ) && rm $R
ESPONSEFILE && touch $W/Gallery/sounds.done 
Work on gallery 'file:///home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/workdir/Gallery/sounds'
Existing themes: 0


Fatal exception: Signal 7
Stack:
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/libuno_sal.so.3(+0x491cc) [0x7ffff23391cc]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/libuno_sal.so.3(+0x493a8) [0x7ffff23393a8]
linux-vdso.so.1(__vdso_rt_sigreturn+0x0) [0x7ffffd7f0910]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/libgcc3_uno.so(+0x3a4c) [0x7fffe6a1ba4c]
/usr/lib/gcc/loongarch64-unknown-linux-gnu/14/libstdc++.so.6(+0xaa15c) [0x7ffff1fb615c]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/libmergedlo.so(+0x2b18760) [0x7fffeeb18760]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/libmergedlo.so(_ZN23GalleryStorageLocations20ImplGetURLIgnoreCaseERK13INetURLObject+0x98) [0x7fffeeb27c38]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/libmergedlo.so(+0x2b27060) [0x7fffeeb27060]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/libmergedlo.so(_ZN17GalleryThemeEntryC2EbRK13INetURLObjectRKN3rtl8OUStringEbbjb+0xf8) [0x7fffeeb134c0]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/libmergedlo.so(_ZN7Gallery11CreateThemeERKN3rtl8OUStringE+0x170) [0x7fffeeb15830]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/gengal.bin(+0x58cc) [0x5555563918cc]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/libmergedlo.so(_Z10ImplSVMainv+0x50) [0x7fffef8e4558]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/gengal.bin(+0x337c) [0x55555638f37c]
/usr/lib64/libc.so.6(+0x22f68) [0x7ffff1cbaf68]
/usr/lib64/libc.so.6(__libc_start_main+0xa8) [0x7ffff1cbb068]
/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/instdir/program/gengal.bin(+0x33e0) [0x55555638f3e0]
make[1]: *** [/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/solenv/gbuild/Gallery.mk:57: /home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2/workdir/Gallery/sounds.done] Error 1
make[1]: Leaving directory '/home/xenon/hog/portage/app-office/libreoffice-24.2.4.2-r1/work/libreoffice-24.2.4.2'
make: *** [Makefile:289: build] Error 2

This is likely related to the LoongArch64 UNO bridge implementation, and it may be that a similar ABI fix for riscv64 should be made for LoongArch64 too, but I haven't verified.

Note that the bug may not appear with your particular build environment; my box has:

• binutils & glibc: trunk
• gcc: 14.1.1 20240622 with Gentoo patches
• CFLAGS reduced to effectively only -O2, same with CXXFLAGS

Anyone taking up this should:

• raise a bug on TDF bugzilla linking to this
• fix it and submit to LibreOffice Gerrit for code review