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zoneminder/cmake/compiler/clang/settings.cmake

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Build: Use zm-* interfaces to set cxx standard and warning flags
2021-02-09 05:54:40 +08:00
target_compile_options(zm-warning-interface
INTERFACE
build: Enable Wextra with some exceptions -Wno-cast-function-type: Signal handler code relies on this. -Wno-type-limits: Some of the color space conversion code in zm_image throws this warning. To not break anything let's ignore this warning for the time being. Note that clang enables -Woverloaded-virtual with -Wextra. To not flood the GCC build log with warnings let's not enable this at the moment. This will be done in a second step, when the currently throwing code will be cleaned up.
2021-02-27 09:08:14 +08:00
-Wall
-Wextra
Build: Enable implicit fallthrough warnings on clang
2021-04-12 05:01:17 +08:00
-Wimplicit-fallthrough
Build: Enable VLA warnings VLAs (variable-length arrays) are a C99 feature and were never standardised for C++. There are better alternatives in C++ (mainly std::vector). Enable the warnings so no new ones can be introduced.
2021-04-26 05:52:32 +08:00
-Wno-unused-parameter
-Wvla)
Build: Add -DASAN option to build with AddressSanitizer support Use this option only for debugging purposes.
2021-02-09 06:07:21 +08:00
Build: Add CMake option to enable Werror With -DENABLE_WERROR the -Werror flag will be passed to the compiler failing the build if a warning is emitted.
2021-04-30 06:13:32 +08:00
if(ENABLE_WERROR)
target_compile_options(zm-warning-interface
INTERFACE
-Werror)
endif()
Build: Add -DASAN option to build with AddressSanitizer support Use this option only for debugging purposes.
2021-02-09 06:07:21 +08:00
if(ASAN)
target_compile_options(zm-compile-option-interface
INTERFACE
-fno-omit-frame-pointer
-fsanitize=address
-fsanitize-recover=address
-fsanitize-address-use-after-scope)
target_link_options(zm-compile-option-interface
INTERFACE
-fno-omit-frame-pointer
-fsanitize=address
-fsanitize-recover=address
-fsanitize-address-use-after-scope)
message(STATUS "Clang: Enabled AddressSanitizer (ASan)")
endif()
Build: Add ThreadSanitizer (TSan) support Enable it by setting -DTSAN=1 This setting is mutually exclusive with -DASAN
2021-02-11 07:38:31 +08:00
if(TSAN)
target_compile_options(zm-compile-option-interface
INTERFACE
-fsanitize=thread)
target_link_options(zm-compile-option-interface
INTERFACE
-fsanitize=thread)
message(STATUS "Clang: Enabled ThreadSanitizer (TSan)")
endif()