llvm-project

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History

[libc++abi] Don't do pointer arithmetic on nullptr (#119520 )

`nullptr + offset` is possible after `!is_virtual` branch.

Detected with check-cxxabi on configured with:
```
cmake -DLLVM_APPEND_VC_REV=OFF -GNinja \
  -DCMAKE_BUILD_TYPE=Release \
  -DLLVM_CCACHE_BUILD=ON \
  -DLLVM_USE_LINKER=lld \
  -DLLVM_ENABLE_ASSERTIONS=ON \
  -DCMAKE_C_COMPILER=clang \
  -DCMAKE_CXX_COMPILER=clang++ \
  -DLIBCXXABI_USE_LLVM_UNWINDER=OFF \
  -DCMAKE_INSTALL_PREFIX=/home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/libcxx_install_ubsan \
  '-DLLVM_ENABLE_RUNTIMES=libcxx;libcxxabi;libunwind' \
  -DLIBCXX_TEST_PARAMS=long_tests=False \
  -DLIBCXX_INCLUDE_BENCHMARKS=OFF \
  -DLLVM_USE_SANITIZER=Undefined \
  '-DCMAKE_C_FLAGS=-fsanitize=undefined -fno-sanitize-recover=all   -fno-sanitize=vptr' \
  '-DCMAKE_CXX_FLAGS=-fsanitize=undefined -fno-sanitize-recover=all   -fno-sanitize=vptr' \
  /home/b/sanitizer-aarch64-linux-bootstrap-ubsan/build/llvm-project/llvm/../runtimes

********************
Failed Tests (2):
  llvm-libc++abi-shared.cfg.in :: catch_null_pointer_to_object_pr64953.pass.cpp
  llvm-libc++abi-shared.cfg.in :: catch_ptr_02.pass.cpp
```

2024-12-11 12:51:10 -08:00

cmake

Revert "[runtimes] Probe for -nostdlib++ and -nostdinc++ with the C compiler" (#113653 )

2024-10-25 09:12:32 +03:00

fuzz

…

include

Revert "Reapply "[libc++abi] Stop copying headers to the build directory"" (#115793 )

2024-11-11 16:20:44 -08:00

lib

[libc++] Avoid re-exporting a few specific symbols from libc++abi (#109054 )

2024-10-01 09:39:44 -04:00