[all-commits] [llvm/llvm-project] fe1d02: [sanitizer] Reject unsupported -static at link tim...

[Fangrui Song via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: fe1d02b08ce2ca74de5b18d9f141d503b7985ec5
      https://github.com/llvm/llvm-project/commit/fe1d02b08ce2ca74de5b18d9f141d503b7985ec5
  Author: Fangrui Song <i at maskray.me>
  Date:   2024-03-12 (Tue, 12 Mar 2024)

  Changed paths:
    M compiler-rt/lib/hwasan/hwasan_interceptors.cpp
    M compiler-rt/lib/lsan/lsan_interceptors.cpp
    M compiler-rt/lib/msan/msan_interceptors.cpp
    M compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp
    A compiler-rt/test/sanitizer_common/TestCases/Linux/static-link.c

  Log Message:
  -----------
  [sanitizer] Reject unsupported -static at link time (#83524)

Most sanitizers don't support static linking. One primary reason is the
incompatibility with interceptors. `GetTlsSize` is another reason.
asan/memprof use `__interception::DoesNotSupportStaticLinking`
(`_DYNAMIC` reference) to reject -static at link time. Port this
detector to other sanitizers. dfsan actually supports -static for
certain cases. Don't touch dfsan.



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