Parker Lougheed
8716461eaf
Fixes a few minor issues relating to outdated links, spelling, Markdown formatting, word choice, etc. Bug: https://github.com/dart-lang/sdk/issues/54066 Change-Id: Ic7b9b33b27d2ce2c30f9b1fe17b0bc91873ecfb7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/369764 Reviewed-by: Nate Bosch <nbosch@google.com> Reviewed-by: Devon Carew <devoncarew@google.com> Commit-Queue: Devon Carew <devoncarew@google.com>
64 lines
3.1 KiB
Markdown
64 lines
3.1 KiB
Markdown
> [!IMPORTANT]
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> This page was copied from https://github.com/dart-lang/sdk/wiki and needs review.
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> Please [contribute](../CONTRIBUTING.md) changes to bring it up-to-date -
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> removing this header - or send a CL to delete the file.
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---
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# Building and Testing
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## AddressSanitizer
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```
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export ASAN_OPTIONS="handle_segv=0:detect_leaks=1:detect_stack_use_after_return=0:disable_coredump=0:abort_on_error=1"
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export ASAN_SYMBOLIZER_PATH="$PWD/buildtools/linux-x64/clang/bin/llvm-symbolizer"
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./tools/build.py --mode release --arch x64 --sanitizer asan runtime runtime_precompiled create_sdk
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./tools/sdks/dart-sdk/bin/dart ./tools/test.dart -n dartk-asan-linux-release-x64 -N dartk-asan-linux-release-x64
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```
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## MemorySanitizer
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```
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export MSAN_OPTIONS="handle_segv=0:detect_leaks=1:detect_stack_use_after_return=0:disable_coredump=0:abort_on_error=1"
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export MSAN_SYMBOLIZER_PATH="$PWD/buildtools/linux-x64/clang/bin/llvm-symbolizer"
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./tools/build.py --mode release --arch x64 --sanitizer msan runtime runtime_precompiled create_sdk
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./tools/sdks/dart-sdk/bin/dart ./tools/test.dart -n dartk-asan-linux-release-x64 -N dartk-msan-linux-release-x64
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```
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## LeakSanitizer
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```
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export ASAN_OPTIONS="handle_segv=0:detect_leaks=1:detect_stack_use_after_return=0:disable_coredump=0:abort_on_error=1"
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export ASAN_SYMBOLIZER_PATH="$PWD/buildtools/linux-x64/clang/bin/llvm-symbolizer"
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./tools/build.py --mode release --arch x64 --sanitizer lsan runtime runtime_precompiled create_sdk
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./tools/sdks/dart-sdk/bin/dart ./tools/test.dart -n dartk-asan-linux-release-x64 -N dartk-lsan-linux-release-x64
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```
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## ThreadSanitizer
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```
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export TSAN_OPTIONS="handle_segv=0:disable_coredump=0:abort_on_error=1"
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export TSAN_SYMBOLIZER_PATH="$PWD/buildtools/linux-x64/clang/bin/llvm-symbolizer"
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./tools/build.py --mode release --arch x64 --sanitizer tsan dart runtime runtime_precompiled create_sdk
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./tools/sdks/dart-sdk/bin/dart ./tools/test.dart -n dartk-asan-linux-release-x64 -N dartk-tsan-linux-release-x64
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```
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## UndefinedBehaviorSanitizer
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```
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export UBSAN_OPTIONS="handle_segv=0:disable_coredump=0:abort_on_error=1"
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export UBSAN_SYMBOLIZER_PATH="$PWD/buildtools/linux-x64/clang/bin/llvm-symbolizer"
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./tools/build.py --mode release --arch x64 --sanitizer ubsan runtime runtime_precompiled create_sdk
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./tools/sdks/dart-sdk/bin/dart ./tools/test.dart -n dartk-linux-release-x64 -N dartk-ubsan-linux-release-x64
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```
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The `handle_segv=0` is only crucial when running through the test suite, wherein several tests are expected to segfault, and will fail if ASan installs its own segfault handler.
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# Development #
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AddressSanitizer works at the C++ language level, hence does not automatically know about code that Dart VM's JIT compiler generates, nor about low-level direct manipulation of the stack from C++ code.
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Use the macro `ASAN_UNPOISON(ptr, len)` to explicitly inform ASan about a region of the stack that has been manipulated outside normal portable C++ code.
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## Stack pointer ##
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When running with detect_stack_use_after_return=1, ASan will return a fake stack pointer when taking the address of a local variable. Use `Isolate::GetCurrentStackPointer()` to get the real stack pointer (calls a tiny pregenerated stub).
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