diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index adb40f292..efb14b1e8 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -43,6 +43,25 @@ mark_as_advanced(COMPILER_RT_BUILD_PROFILE) option(COMPILER_RT_BUILD_XRAY_NO_PREINIT "Build xray with no preinit patching" OFF) mark_as_advanced(COMPILER_RT_BUILD_XRAY_NO_PREINIT) +set(COMPILER_RT_ASAN_SHADOW_SCALE "" + CACHE STRING "Override the shadow scale to be used in ASan runtime") + +if (NOT COMPILER_RT_ASAN_SHADOW_SCALE STREQUAL "") + # Check that the shadow scale value is valid. + if (NOT (COMPILER_RT_ASAN_SHADOW_SCALE GREATER -1 AND + COMPILER_RT_ASAN_SHADOW_SCALE LESS 8)) + message(FATAL_ERROR " + Invalid ASan Shadow Scale '${COMPILER_RT_ASAN_SHADOW_SCALE}'.") + endif() + + set(COMPILER_RT_ASAN_SHADOW_SCALE_LLVM_FLAG + -mllvm -asan-mapping-scale=${COMPILER_RT_ASAN_SHADOW_SCALE}) + set(COMPILER_RT_ASAN_SHADOW_SCALE_DEFINITION + ASAN_SHADOW_SCALE=${COMPILER_RT_ASAN_SHADOW_SCALE}) + set(COMPILER_RT_ASAN_SHADOW_SCALE_FLAG + -D${COMPILER_RT_ASAN_SHADOW_SCALE_DEFINITION}) +endif() + set(COMPILER_RT_BAREMETAL_BUILD OFF CACHE BOOLEAN "Build for a bare-metal target.") |