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Revert "Enable COMPILER_RT_BUILD_BUILTINS for armel"

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FTBFSes with:

FAILED: CMakeFiles/clang_rt.builtins-arm.dir/arm/sync_fetch_and_add_4.S.o
/<<PKGBUILDDIR>>/build-llvm/./bin/clang -target arm-linux-gnueabi -DVISIBILITY_HIDDEN  -O3 -DNDEBUG -fno-lto -std=c11 -fPIC -fno-builtin -fvisibility=hidden -fomit-frame-pointer -DCOMPILER_RT_HAS_FLOAT16 -MD -MT CMakeFiles/clang_rt.builtins-arm.dir/arm/sync_fetch_and_add_4.S.o -MF CMakeFiles/clang_rt.builtins-arm.dir/arm/sync_fetch_and_add_4.S.o.d -o CMakeFiles/clang_rt.builtins-arm.dir/arm/sync_fetch_and_add_4.S.o -c /<<PKGBUILDDIR>>/compiler-rt/lib/builtins/arm/sync_fetch_and_add_4.S
In file included from /<<PKGBUILDDIR>>/compiler-rt/lib/builtins/arm/sync_fetch_and_add_4.S:14:
/<<PKGBUILDDIR>>/compiler-rt/lib/builtins/arm/sync-ops.h:22:2: error: DMB is only supported on ARMv6+
   22 | #error DMB is only supported on ARMv6+
      |  ^

This was despite an upstream commit labeled "[compiler-rt] support
armv4t". Perhaps something going on with the way we configure? Revert
for the time being, until (if) someone cares.

This reverts commit 1b0abffef7.
This commit is contained in:
Faidon Liambotis 2024-01-10 09:32:21 +02:00
parent 556a6737b6
commit bdfce0866c
1 changed files with 3 additions and 0 deletions
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3
debian/rules vendored
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@ -177,6 +177,9 @@ ifneq (,$(findstring $(DEB_HOST_ARCH),armel))
# https://wiki.debian.org/ArmEabiPort
CFLAGS_EXTRA += -march=armv5t
CXXFLAGS_EXTRA += -march=armv5t
# disable compiler-rt builtins (not supported for baseline armel arch: armv5t)
# See http://lists.llvm.org/pipermail/llvm-dev/2016-May/099761.html
STAGE_ALL_CMAKE_EXTRA += -DCOMPILER_RT_BUILD_BUILTINS=OFF
COMPILER_RT_USE_BUILTINS_LIBRARY := OFF
LIBCXX_USE_COMPILER_RT := OFF
# disable scudo standalone (not supported for baseline armel arch: armv5t)