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serenity/Meta/CMake/lagom_compile_options.cmake

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CMake
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Meta: Move compiler flags into standalone CMake files This way we can have all of them in a single place, similar to how we structure options added via the serenity_option() macro.
2022-05-14 15:07:12 +02:00
include(${CMAKE_CURRENT_LIST_DIR}/common_compile_options.cmake)
add_compile_options(-Wno-maybe-uninitialized)
Meta: Diable Wshorten-64-to-32 explicitly to silence Xcode defaults Xcode will set this by default when creating a new project unless we set an xcode property to disable it. Instead of doing that, disable it globally.
2023-03-27 18:55:08 -06:00
add_compile_options(-Wno-shorten-64-to-32)
Meta: Move compiler flags into standalone CMake files This way we can have all of them in a single place, similar to how we structure options added via the serenity_option() macro.
2022-05-14 15:07:12 +02:00
add_compile_options(-fsigned-char)
Meta: Link Lagom with LLD by default and allow configuring the linker This ports over the `LADYBIRD_USE_LLD` option from the standalone Ladybird build and generalizes it to work for mold as well: the `LAGOM_USE_LINKER` variable can be set to the desired name of the linker. If it's empty, we default to trying LLD and Mold on ELF platforms (in this order).
2023-09-05 07:40:57 +02:00
add_compile_options(-ggnu-pubnames)
Lagom: Don't compile with `-fPIC` on WIN32
2022-12-12 22:57:36 +01:00
if (NOT WIN32)
add_compile_options(-fPIC)
endif()
Meta: Link Lagom with LLD by default and allow configuring the linker This ports over the `LADYBIRD_USE_LLD` option from the standalone Ladybird build and generalizes it to work for mold as well: the `LAGOM_USE_LINKER` variable can be set to the desired name of the linker. If it's empty, we default to trying LLD and Mold on ELF platforms (in this order).
2023-09-05 07:40:57 +02:00
CMake: Build lagom with -D_FILE_OFFSET_BITS=64 on Linux 32-bit glibc limits off_t to 32 bits without this definition, which makes working with large files rather difficult.
2024-01-16 14:56:23 +04:00
if (LINUX)
add_compile_options(-D_FILE_OFFSET_BITS=64)
endif()
Meta: Support -DCMAKE_BUILD_TYPE=DEBUG for Lagom builds It's exhausting to have to do a full rebuild when stashing/unstashing these changes locally.
2023-12-20 09:36:02 -07:00
if (CMAKE_BUILD_TYPE STREQUAL "Debug")
add_compile_options(-ggdb3)
add_compile_options(-Og)
else()
add_compile_options(-O2)
add_compile_options(-g1)
endif()
Meta: Link Lagom with LLD by default and allow configuring the linker This ports over the `LADYBIRD_USE_LLD` option from the standalone Ladybird build and generalizes it to work for mold as well: the `LAGOM_USE_LINKER` variable can be set to the desired name of the linker. If it's empty, we default to trying LLD and Mold on ELF platforms (in this order).
2023-09-05 07:40:57 +02:00
function(add_linker_flag_if_supported flag)
include(CheckLinkerFlag)
check_linker_flag(CXX ${flag} LAGOM_LINKER_SUPPORTS_${flag})
if (${LAGOM_LINKER_SUPPORTS_${flag}})
add_link_options(${flag})
endif()
endfunction()
add_linker_flag_if_supported(LINKER:--gdb-index)
CMake: Link with `-Bsymbolic-non-weak-functions` if supported This flag makes the linker bind default-visibility functions locally, so that calls to them do not have to go through the PLT. This makes it impossible to override them by preloading a DSO. This was already the case partially due to `-fno-semantic-interposition`, however that flag is only able to optimize call sites that are in the same Translation Unit as the function definitions. This removes 80% of the PLT relocations in `libjs.so.serenity`. Obsoletes #20877
2023-09-10 22:09:22 +02:00
if (NOT ENABLE_FUZZERS)
add_linker_flag_if_supported(LINKER:-Bsymbolic-non-weak-functions)
endif()
Meta: Allow collecting code coverage on Lagom
2024-02-24 12:17:57 -05:00
if (ENABLE_LAGOM_COVERAGE_COLLECTION)
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang$" AND NOT ENABLE_FUZZERS)
add_compile_options(-fprofile-instr-generate -fcoverage-mapping)
add_link_options(-fprofile-instr-generate)
else()
message(FATAL_ERROR
"Collecting code coverage is unsupported in this configuration.")
endif()
endif()
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