compiler-rt-sanitizers fails on musl with: [59/558] /usr/lib/llvm/10/bin/x86_64-gentoo-linux-musl-clang++ -I/var/tmp/portage/sys-libs/compiler-rt-sanitizers-10.0.1/work/compiler-rt/lib/gwp_asan/.. -march=native -mtune=native -O2 -pipe -Wall -std=c++14 -Wno-unused-parameter -m64 -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fno-sanitize=safe-stack -fvisibility=hidden - fno-lto -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -fno-exceptions -nostdinc++ -pthread -fPIC -MD -MT lib/gwp_asan/CMakeFiles/RTGwpAsanBacktraceLibc.x86_64.dir/optional/backtrace_linux_libc.cpp.o -MF lib/gwp_asan/CMakeFiles/RTGwpAsanBacktraceLibc.x86_64.dir/optional/backtrace_linux_libc.cpp.o.d -o lib/gwp_asan/CMakeF iles/RTGwpAsanBacktraceLibc.x86_64.dir/optional/backtrace_linux_libc.cpp.o -c /var/tmp/portage/sys-libs/compiler-rt-sanitizers-10.0.1/work/compiler-rt/lib/gwp_asan/optional/backtrace_linux_libc.cpp FAILED: lib/gwp_asan/CMakeFiles/RTGwpAsanBacktraceLibc.x86_64.dir/optional/backtrace_linux_libc.cpp.o /usr/lib/llvm/10/bin/x86_64-gentoo-linux-musl-clang++ -I/var/tmp/portage/sys-libs/compiler-rt-sanitizers-10.0.1/work/compiler-rt/lib/gwp_asan/.. -march=native -mtune=native -O2 -pipe -Wall -std=c++14 -Wno-unused-parameter -m64 -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fno-sanitize=safe-stack -fvisibility=hidden -fno-lto - O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -Wno-non-virtual-dtor -fno-rtti -fno-exceptions -nostdinc++ -pthread -fPIC -MD -MT lib/gwp_asan/CMakeFiles/RTGwpAsanBacktraceLibc.x86_64.dir/optional/backtrace_linux_libc.cpp.o -MF lib/gwp_asan/CMakeFiles/RTGwpAsanBacktraceLibc.x86_64.dir/optional/backtrace_linux_libc.cpp.o.d -o lib/gwp_asan/CMakeFiles/RTGw pAsanBacktraceLibc.x86_64.dir/optional/backtrace_linux_libc.cpp.o -c /var/tmp/portage/sys-libs/compiler-rt-sanitizers-10.0.1/work/compiler-rt/lib/gwp_asan/optional/backtrace_linux_libc.cpp /var/tmp/portage/sys-libs/compiler-rt-sanitizers-10.0.1/work/compiler-rt/lib/gwp_asan/optional/backtrace_linux_libc.cpp:10:10: fatal error: 'execinfo.h' file not found #include <execinfo.h> ^~~~~~~~~~~~ 1 error generated. I checked with #llvm on OFTC and they told me that these options need to be set with musl: set(COMPILER_RT_BUILD_LIBFUZZER OFF CACHE BOOL "") set(COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "") set(COMPILER_RT_BUILD_XRAY OFF CACHE BOOL "")
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2abf7b18e945a1baee9b503cbc6650bf28c46f22 commit 2abf7b18e945a1baee9b503cbc6650bf28c46f22 Author: Jonathan Davies <jpds@protonmail.com> AuthorDate: 2020-11-10 17:03:14 +0000 Commit: Jory Pratt <anarchy@gentoo.org> CommitDate: 2020-11-10 19:52:18 +0000 musl profile: Disabled LLVM sanitizers as they do not work for now. Closes: https://bugs.gentoo.org/753935 Closes: https://github.com/gentoo/gentoo/pull/18216 Signed-off-by: Jonathan Davies <jpds@protonmail.com> Signed-off-by: Jory Pratt <anarchy@gentoo.org> profiles/default/linux/musl/package.use.mask | 3 +++ 1 file changed, 3 insertions(+)
I'm still encountering this on the musl hardened profile. Am I doing something wrong or was sanitizer support only disabled on the musl vanilla profile? Adding `-sanitizer` to the clang-runtime USE flags can work around it for now.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7f545c8ab490e3da017fb473c506c390954c5ec0 commit 7f545c8ab490e3da017fb473c506c390954c5ec0 Author: Sam James <sam@gentoo.org> AuthorDate: 2021-11-07 03:54:54 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2021-11-07 03:58:59 +0000 profiles: refine LLVM sanitizers mask for musl (more finely-grained) Some sanitizers work now. Bug: https://bugs.gentoo.org/753935 Closes: https://bugs.gentoo.org/713072 Reported-by: maskray Signed-off-by: Sam James <sam@gentoo.org> profiles/default/linux/musl/package.use.mask | 5 +---- profiles/features/musl/package.use.mask | 11 ++++++++++- 2 files changed, 11 insertions(+), 5 deletions(-)
upstream bug report: https://github.com/llvm/llvm-project/issues/60687
