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cmake: ld: Disable manual linking of libgcc components for host

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When the host toolchain is used, `-nostdlib` option is not specified
and therefore all default libraries, including the libgcc and its
components, are automatically linked -- so it is not necessary to
manually link them here.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
This commit is contained in:
Stephanos Ioannidis 2021-06-15 19:59:42 +09:00 committed by Alberto Escolar
parent 733240378e
commit 1836f10bb7
1 changed files with 10 additions and 8 deletions
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18
cmake/linker/ld/target.cmake
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@ -13,14 +13,16 @@ endif()
set_ifndef(LINKERFLAGPREFIX -Wl)
if(CONFIG_EXCEPTIONS)
# When building with C++ Exceptions, it is important that crtbegin and crtend
# are linked at specific locations.
# The location is so important that we cannot let this be controlled by normal
# link libraries, instead we must control the link command specifically as
# part of toolchain.
set(CMAKE_CXX_LINK_EXECUTABLE
"<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> ${LIBGCC_DIR}/crtbegin.o <OBJECTS> -o <TARGET> <LINK_LIBRARIES> ${LIBGCC_DIR}/crtend.o")
if(NOT "${ZEPHYR_TOOLCHAIN_VARIANT}" STREQUAL "host")
if(CONFIG_EXCEPTIONS)
# When building with C++ Exceptions, it is important that crtbegin and crtend
# are linked at specific locations.
# The location is so important that we cannot let this be controlled by normal
# link libraries, instead we must control the link command specifically as
# part of toolchain.
set(CMAKE_CXX_LINK_EXECUTABLE
"<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> ${LIBGCC_DIR}/crtbegin.o <OBJECTS> -o <TARGET> <LINK_LIBRARIES> ${LIBGCC_DIR}/crtend.o")
endif()
endif()
# Run $LINKER_SCRIPT file through the C preprocessor, producing ${linker_script_gen}