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From: "doko at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/112777] New: [14 Regression] profiled bootstrap fails on
 powerpc-linux-gnu, undefined references to __atomic_fetch_add_8
Date: Thu, 30 Nov 2023 10:52:25 +0000
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X-Bugzilla-Version: 14.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112777

            Bug ID: 112777
           Summary: [14 Regression] profiled bootstrap fails on
                    powerpc-linux-gnu, undefined references to
                    __atomic_fetch_add_8
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org
  Target Milestone: ---

trunk 20231130 fails to build on powerpc-linux-gnu in stageprofile. Not see=
n on
powerpc64-linux-gnu and powerpc64el-linux-gnu

make profiledbootstrap-lean

[...]

configure:3088: checking whether the C compiler works
configure:3110:  /home/doko/gcc-snapshot-20231130/build/./prev-gcc/xgcc
-B/home/doko/gcc-snapshot-20231130/build/./prev-gcc/
-B/usr/lib/gcc-snapshot/powerpc-linux-gnu/bin/
-B/usr/lib/gcc-snapshot/powerpc-linux-gnu/bin/
-B/usr/lib/gcc-snapshot/powerpc-linux-gnu/lib/ -isystem
/usr/lib/gcc-snapshot/powerpc-linux-gnu/include -isystem
/usr/lib/gcc-snapshot/powerpc-linux-gnu/sys-include   -fno-checking -g -O2
-fno-checking -gtoggle -fprofile-generate  -static-libstdc++ -static-libgcc
-Wl,-z,relro conftest.c  >&5
/usr/bin/powerpc-linux-gnu-ld:
/home/doko/gcc-snapshot-20231130/build/./prev-gcc/libgcov.a(_gcov_indirect_=
call_profiler_v4.o):
in function `gcov_counter_add':
/home/doko/gcc-snapshot-20231130/build/powerpc-linux-gnu/libgcc/../../../sr=
c/libgcc/libgcov.h:423:(.text+0x4bc):
undefined reference to `__atomic_fetch_add_8'
/usr/bin/powerpc-linux-gnu-ld:
/home/doko/gcc-snapshot-20231130/build/powerpc-linux-gnu/libgcc/../../../sr=
c/libgcc/libgcov.h:423:(.text+0x740):
undefined reference to `__atomic_fetch_add_8'
/usr/bin/powerpc-linux-gnu-ld:
/home/doko/gcc-snapshot-20231130/build/powerpc-linux-gnu/libgcc/../../../sr=
c/libgcc/libgcov.h:423:(.text+0x798):
undefined reference to `__atomic_fetch_add_8'
collect2: error: ld returned 1 exit status
configure:3114: $? =3D 1=