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cmake: Error instead of warning and dropping invalid LLVM_USE_SANITIZER

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Currently, if you call cmake with a typo in an LLVM_USE_SANITIZER
value, there's a cmake warning and the build goes on with no
sanitizers at all. This isn't a good behaviour, since cmake warnings
are fairly easy to miss and the resulting behaviour is that it looks
like the build is sanitizer clean.

Upgrade these warnings to errors so misconfigurations are more
obvious.

llvm-svn: 246531
This commit is contained in:
Justin Bogner 2015-09-01 05:45:07 +00:00
parent 55390f2377
commit d7f80181b8
1 changed files with 3 additions and 3 deletions
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6
cmake/modules/HandleLLVMOptions.cmake
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@ -507,17 +507,17 @@ if(LLVM_USE_SANITIZER)
append("-fsanitize=address,undefined -fno-sanitize=vptr,function -fno-sanitize-recover=all"
CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
else()
message(WARNING "Unsupported value of LLVM_USE_SANITIZER: ${LLVM_USE_SANITIZER}")
message(FATAL_ERROR "Unsupported value of LLVM_USE_SANITIZER: ${LLVM_USE_SANITIZER}")
endif()
elseif(MSVC)
if (LLVM_USE_SANITIZER STREQUAL "Address")
append_common_sanitizer_flags()
append("-fsanitize=address" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
else()
message(WARNING "This sanitizer not yet supported in the MSVC environment: ${LLVM_USE_SANITIZER}")
message(FATAL_ERROR "This sanitizer not yet supported in the MSVC environment: ${LLVM_USE_SANITIZER}")
endif()
else()
message(WARNING "LLVM_USE_SANITIZER is not supported on this platform.")
message(FATAL_ERROR "LLVM_USE_SANITIZER is not supported on this platform.")
endif()
if (LLVM_USE_SANITIZE_COVERAGE)
append("-fsanitize-coverage=edge,indirect-calls,8bit-counters,trace-cmp" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)