https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104781
Ulrich Drepper <drepper.fsp+rhbz at gmail dot com> changed:
What |Removed |Added
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CC| |drepper.fsp+rhbz at gmail dot
com
--- Comment #14 from Ulrich Drepper <drepper.fsp+rhbz at gmail dot com> ---
My standard build now fails in stage 1 with this patch when compiling
unwind-dw2.c for x86:
.../gcc-builds/20220315/gcc/include/cetintrin.h: In function
‘_Unwind_RaiseException’:
.../gcc-builds/20220315/gcc/include/cetintrin.h:47:1: error: inlining failed in
call to ‘always_inline’ ‘_get_ssp’: target specific option mismatch
47 | _get_ssp (void)
| ^~~~~~~~
.../gnu/gcc/libgcc/config/i386/shadow-stack-unwind.h:32:26: note: called from
here
32 | _Unwind_Word ssp = _get_ssp (); \
| ^~~~~~~~~~~
.../gnu/gcc/libgcc/unwind-dw2.c:1654:7: note: in expansion of macro
‘_Unwind_Frames_Extra’
1654 | _Unwind_Frames_Extra (FRAMES);
\
| ^~~~~~~~~~~~~~~~~~~~
.../gnu/gcc/libgcc/unwind.inc:140:3: note: in expansion of macro
‘uw_install_context’
140 | uw_install_context (&this_context, &cur_context, frames);
and so on for the other CET functions. When I comment out the
LIBGCC2_UNWIND_ATTRIBUTE definition in config/i386/i386.h it works.
The compiler command line that is used is
.../gcc-builds/20220315/./gcc/xgcc -B.../gcc-builds/20220315/./gcc/
-B/usr/x86_64-redhat-linux/bin/ -B/usr/x86_64-redhat-linux/lib/ -isystem
/usr/x86_64-redhat-linux/include -isystem /usr/x86_64-redhat-linux/sys-include
-fno-checking -g -O2 -m32 -O2 -g -O2 -DIN_GCC -W -Wall -Wno-narrowing
-Wwrite-strings -Wcast-qual -Wno-format -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition -isystem ./include -fpic
-mlong-double-80 -DUSE_ELF_SYMVER -fcf-protection -mshstk -g -DIN_LIBGCC2
-fbuilding-libgcc -fno-stack-protector -fpic -mlong-double-80 -DUSE_ELF_SYMVER
-fcf-protection -mshstk -I. -I. -I../../.././gcc -I.../gcc/libgcc
-I.../gcc/libgcc/. -I.../gcc/libgcc/../gcc -I.../gcc/libgcc/../include
-I.../gcc/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT -DHAVE_CC_TLS
-DUSE_TLS -o unwind-dw2.o -MT unwind-dw2.o -MD -MP -MF unwind-dw2.dep
-fexceptions -c .../gcc/libgcc/unwind-dw2.c -fvisibility=hidden -DHIDE_EXPORTS
This is on an up-to-date Fedora 35 system with gcc 11.2.1-9
