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CMake: Always build LibC with -ftls-model=initial-exec

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LibC is always guaranteed to be loaded at program start, so its
thread-local variables live in the static TLS block. This permits us to
use the more optimal initial-exec TLS access model.
This commit is contained in:
Daniel Bertalan 2023-07-04 10:21:36 +02:00 committed by Jelle Raaijmakers
parent 70fcbcf54b
commit 182bb97479
Notes: sideshowbarker 2024-07-17 05:09:48 +09:00 
Author: https://github.com/BertalanD
Commit: https://github.com/SerenityOS/serenity/commit/182bb97479
Pull-request: https://github.com/SerenityOS/serenity/pull/19809
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/gmta ✅
Reviewed-by: https://github.com/kleinesfilmroellchen
Reviewed-by: https://github.com/timschumi
1 changed files with 1 additions and 1 deletions
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Meta/CMake/utils.cmake
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@ -82,7 +82,7 @@ endif()
function(serenity_libc target_name fs_name)
serenity_install_headers("")
serenity_install_sources()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -nostdlib -fpic")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -nostdlib -fpic -ftls-model=initial-exec")
add_library(${target_name} SHARED ${SOURCES})
install(TARGETS ${target_name} DESTINATION ${CMAKE_INSTALL_LIBDIR})
set_target_properties(${target_name} PROPERTIES OUTPUT_NAME ${fs_name})