[compiler-rt] Add CMake flag for AArch64 Linux with 39-bit VA. #167028
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thurstond
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Nov 7, 2025
compiler-rt/CMakeLists.txt
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| pythonize_bool(SANITIZER_USE_STATIC_TEST_CXX) | ||
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| option(SANITIZER_AARCH64_39BIT_VA | ||
| "Configure sanitizer allocator for 39-bit VA kernel." OFF) |
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Maybe drop the "allocator", just "Configure sanitizer for 39-bit VA kernel."? It's cleaner (and keeps the door open for e.g., MSan, where the shadow mappings also need to be changed.)
Sanitizers currently assume AArch64 Linux has 48-bit VA. Followup patches will add checks for this flag to asan and hwasan.
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thurstond
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Nov 10, 2025
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Sanitizers currently assume AArch64 Linux has 48-bit VA. Followup patches will add checks for this flag to asan and hwasan.