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Bug 951539 - llvm-runtimes/compiler-rt-sanitizers-20.1.0: build failure on riscv/musl
Summary: llvm-runtimes/compiler-rt-sanitizers-20.1.0: build failure on riscv/musl
Status: CONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal
Assignee: LLVM support project
URL:
Whiteboard:
Keywords: PATCH
Depends on:
Blocks:
 
Reported: 2025-03-18 12:58 UTC by Michael Orlitzky
Modified: 2025-03-18 14:57 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---

Attachments
build.log (build.log,93.55 KB, text/plain)
2025-03-18 12:58 UTC, Michael Orlitzky 		Details
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Description Michael Orlitzky gentoo-dev 2025-03-18 12:58:09 UTC 
Created attachment 921080 [details]
build.log

The same thing happens with gcc-15 in bug #945920, so I'm guessing sanitizer_common is shared code.

/usr/lib/llvm/20/bin/riscv64-unknown-linux-musl-clang++ -DHAVE_RPC_XDR_H=0 -I/var/lib/portage/tmp/portage/llvm-runtimes/compiler-rt-sanitizers-20.1.0/work/compiler-rt/lib/sanitizer_common/..  -DNDEBUG -O3 -pipe -mabi=lp64d -march=rv64gc -Werror=odr -Werror=strict-aliasing -flto -Wall -Wno-unused-parameter -std=c++17 -fPIC -fno-builtin -fno-exceptions -fomit-frame-pointer -funwind-tables -fno-stack-protector -fno-sanitize=safe-stack -fvisibility=hidden -fno-lto -Wthread-safety -Wthread-safety-reference -Wthread-safety-beta -O3 -gline-tables-only -Wno-gnu -Wno-variadic-macros -Wno-c99-extensions -ftrivial-auto-var-init=pattern -nostdinc++ -Wno-format -fno-rtti -Wframe-larger-than=570 -Wglobal-constructors -MD -MT lib/sanitizer_common/CMakeFiles/RTSanitizerCommonLibc.riscv64.dir/sanitizer_linux_libcdep.cpp.o -MF lib/sanitizer_common/CMakeFiles/RTSanitizerCommonLibc.riscv64.dir/sanitizer_linux_libcdep.cpp.o.d -o lib/sanitizer_common/CMakeFiles/RTSanitizerCommonLibc.riscv64.dir/sanitizer_linux_libcdep.cpp.o -c /var/lib/portage/tmp/portage/llvm-runtimes/compiler-rt-sanitizers-20.1.0/work/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
/var/lib/portage/tmp/portage/llvm-runtimes/compiler-rt-sanitizers-20.1.0/work/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp:627:29: error: use of undeclared identifier 'TlsPreTcbSize'
  627 |   const uptr pre_tcb_size = TlsPreTcbSize();
      |                             ^
1 error generated.
Comment 1 Michael Orlitzky gentoo-dev 2025-03-18 14:49:23 UTC 
Fixed by https://github.com/llvm/llvm-project/pull/120036