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Linker/GNU: Refactor LINKER_PUSHPOP_STATE_SUPPORTED check to a function

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This commit is contained in:
Robert Maynard
2026-08-13 13:45:19 -04:00
committed by Brad King
parent 0f784069c3
commit 158b64688f
1 changed files with 30 additions and 17 deletions
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Modules/Platform/Linker/GNU.cmake
+30 -17
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@@ -5,31 +5,43 @@
# This module is shared by multiple languages; use include blocker.
include_guard()
# Probe whether the linker supports --push-state/--pop-state and cache the result
# in CMAKE_[<LANG>_]LINKER_PUSHPOP_STATE_SUPPORTED.
function(__cmake_check_linker_pushpop_state __linker __linker_options)
unset(__lang)
if(ARGC EQUAL "3")
set(__lang "${ARGV2}_")
endif()
if(DEFINED CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED)
return()
endif()
if(NOT __linker)
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED FALSE PARENT_SCOPE)
return()
endif()
execute_process(COMMAND "${__linker}" ${__linker_options} --push-state --pop-state
OUTPUT_VARIABLE __linker_log
ERROR_VARIABLE __linker_log
COMMAND_ERROR_IS_FATAL NONE)
if(__linker_log MATCHES "--push-state" OR __linker_log MATCHES "--pop-state")
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED FALSE PARENT_SCOPE)
else()
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED TRUE PARENT_SCOPE)
endif()
endfunction()
# WHOLE_ARCHIVE Feature for LINK_LIBRARY generator expression
## check linker capabilities
function(__cmake_set_whole_archive_feature __linker __linker_options)
unset(__lang)
if(ARGC EQUAL "3")
set(__lang "${ARGV2}_")
endif()
if(NOT __linker)
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED FALSE)
endif()
__cmake_check_linker_pushpop_state("${__linker}" "${__linker_options}" ${ARGV2})
if(NOT DEFINED CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED)
# launch linker to check if push_state/pop_state options are supported
execute_process(COMMAND "${__linker}" ${__linker_options} --push-state --pop-state
OUTPUT_VARIABLE __linker_log
ERROR_VARIABLE __linker_log
COMMAND_ERROR_IS_FATAL NONE)
if(__linker_log MATCHES "--push-state" OR __linker_log MATCHES "--pop-state")
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED FALSE)
else()
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED TRUE)
endif()
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED ${CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED} PARENT_SCOPE)
endif()
## WHOLE_ARCHIVE: Force loading all members of an archive
if(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED)
set(CMAKE_${__lang}LINK_LIBRARY_USING_WHOLE_ARCHIVE "LINKER:--push-state,--whole-archive"
@@ -42,6 +54,7 @@ function(__cmake_set_whole_archive_feature __linker __linker_options)
endif()
set(CMAKE_${__lang}LINK_LIBRARY_USING_WHOLE_ARCHIVE_SUPPORTED TRUE PARENT_SCOPE)
set(CMAKE_${__lang}LINK_LIBRARY_WHOLE_ARCHIVE_ATTRIBUTES LIBRARY_TYPE=STATIC DEDUPLICATION=YES OVERRIDE=DEFAULT PARENT_SCOPE)
set(CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED "${CMAKE_${__lang}LINKER_PUSHPOP_STATE_SUPPORTED}" PARENT_SCOPE)
endfunction()