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| author | Marc Chevrier <marc.chevrier@gmail.com> | 2023-09-27 13:22:55 (GMT) |
|---|---|---|
| committer | Marc Chevrier <marc.chevrier@gmail.com> | 2023-10-13 09:52:35 (GMT) |
| commit | 96a953b1ed7e41260aa0869bad0ff14c788cf57e (patch) | |
| tree | d9bedd8494b073f3795e4ed80f01b22a2b5a9093 /Modules/Platform/Linux-GNU.cmake | |
| parent | ee5f31ba727e392e1ebc9f5be54c74ac1868d029 (diff) | |
| download | CMake-96a953b1ed7e41260aa0869bad0ff14c788cf57e.zip CMake-96a953b1ed7e41260aa0869bad0ff14c788cf57e.tar.gz CMake-96a953b1ed7e41260aa0869bad0ff14c788cf57e.tar.bz2 | |
Add options to specify linker tool
Offer the capability, through variable `CMAKE_LINKER_TYPE`, as well as
the target property `LINKER_TYPE` to specify which linker must be used.
The implementation of this capability is specified by variables specific
to the language and linker type: `CMAKE_<LANG>_USING_LINKER_<TYPE>`.
Some definitions are provided as part of `CMake`.
For example, to select the `LLVM` linker rather than the standard one,
the type `LLD` should be specified through the variable `CMAKE_LINKER_TYPE`.
And, on `Apple`, `Linux` and some environments on `Windows`, the variable
`CMAKE_<LANG>_USING_LINKER_LLD` has value `-fuse-ld=lld`. And for `Windows`
environments based on `MSVC`, where the linker is used directly, the tool
`lld-link.exe` will be used rather than `link.exe`.
Fixes: #19174, #24254, #24990
Diffstat (limited to 'Modules/Platform/Linux-GNU.cmake')
| -rw-r--r-- | Modules/Platform/Linux-GNU.cmake | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Modules/Platform/Linux-GNU.cmake b/Modules/Platform/Linux-GNU.cmake index 6878254..b8ce521 100644 --- a/Modules/Platform/Linux-GNU.cmake +++ b/Modules/Platform/Linux-GNU.cmake @@ -12,4 +12,11 @@ macro(__linux_compiler_gnu lang) # We pass this for historical reasons. Projects may have # executables that use dlopen but do not set ENABLE_EXPORTS. set(CMAKE_SHARED_LIBRARY_LINK_${lang}_FLAGS "-rdynamic") + + # linker selection + set(CMAKE_${lang}_USING_LINKER_SYSTEM "") + set(CMAKE_${lang}_USING_LINKER_LLD "-fuse-ld=lld") + set(CMAKE_${lang}_USING_LINKER_BFD "-fuse-ld=bfd") + set(CMAKE_${lang}_USING_LINKER_GOLD "-fuse-ld=gold") + set(CMAKE_${lang}_USING_LINKER_MOLD "-fuse-ld=mold") endmacro() |