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zoneminder/cmake/compiler/gcc/settings.cmake

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CMake
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Build: Use zm-* interfaces to set cxx standard and warning flags
2021-02-08 21:54:40 +00:00
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 01:08:14 +00:00
-Wall
don't set -Wconditionally-supported on older gcc
2021-04-07 15:01:46 +00:00
$<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,5.0>:-Wconditionally-supported>
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 01:08:14 +00:00
-Wextra
Utils: Replace stringtf with a type-safe version that can't overflow
2021-03-05 21:24:33 +00:00
-Wformat-security
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 01:08:14 +00:00
-Wno-cast-function-type
xenial has cmake 3.5.1. VERSION_LESS_EQUAL was introduced in 3.7. So lets use VERSION_LESS,11 instead
2021-04-19 21:06:54 +00:00
$<$<VERSION_LESS:$<CXX_COMPILER_VERSION>,11>:-Wno-clobbered>
Build: Disable Wmissing-field-initializers on older GCC versions GCC 5.1 corrected the behaviour in regard that the C++11 initialisation behaviour is respected.
2021-05-23 23:15:00 +00:00
$<$<VERSION_LESS:$<CXX_COMPILER_VERSION>,5.1>:-Wno-missing-field-initializers>
build: Enable Woverloaded-virtual on GCC
2021-04-10 23:18:00 +00:00
-Wno-unused-parameter
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.
2021-04-25 21:52:32 +00:00
-Woverloaded-virtual
-Wvla)
Build: Add -DASAN option to build with AddressSanitizer support Use this option only for debugging purposes.
2021-02-08 22:07:21 +00:00
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.
2021-04-29 22:13:32 +00:00
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.
2021-02-08 22:07:21 +00:00
if(ASAN)
target_compile_options(zm-compile-option-interface
INTERFACE
Build: Enable std::vector ASAN annotation in libstdc++ By defining _GLIBCXX_SANITIZE_VECTOR when ASAN is enabled `std::vector` operations will be annotated so ASAN can detect invalid accesses. See https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_macros.html
2021-05-29 17:55:17 +00:00
-D_GLIBCXX_SANITIZE_VECTOR=1
Build: Add -DASAN option to build with AddressSanitizer support Use this option only for debugging purposes.
2021-02-08 22:07:21 +00:00
-fno-omit-frame-pointer
-fsanitize=address
-fsanitize-recover=address
Build: Disable Wstringop-truncation in GCC ASAN builds These two options don't work well together and lead to false positives. Follow-up on e5cac38521c17ac184235a687cd0639f3c7e85f2
2021-05-27 22:08:46 +00:00
-fsanitize-address-use-after-scope
-Wno-stringop-truncation)
Build: Add -DASAN option to build with AddressSanitizer support Use this option only for debugging purposes.
2021-02-08 22:07:21 +00:00
target_link_options(zm-compile-option-interface
INTERFACE
-fno-omit-frame-pointer
-fsanitize=address
-fsanitize-recover=address
-fsanitize-address-use-after-scope)
message(STATUS "GCC: Enabled AddressSanitizer (ASan)")
endif()
Build: Add ThreadSanitizer (TSan) support Enable it by setting -DTSAN=1 This setting is mutually exclusive with -DASAN
2021-02-10 23:38:31 +00:00
if(TSAN)
target_compile_options(zm-compile-option-interface
INTERFACE
-fsanitize=thread)
target_link_options(zm-compile-option-interface
INTERFACE
-fsanitize=thread)
message(STATUS "GCC: Enabled ThreadSanitizer (TSan)")
endif()