116 lines
4.3 KiB
CMake
116 lines
4.3 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
|
|
set_property(TARGET linker PROPERTY devices_start_symbol "_device_list_start")
|
|
|
|
find_package(LlvmLld 14.0.0 REQUIRED)
|
|
set(CMAKE_LINKER ${LLVMLLD_LINKER})
|
|
|
|
set_ifndef(LINKERFLAGPREFIX -Wl)
|
|
|
|
# Run $LINKER_SCRIPT file through the C preprocessor, producing ${linker_script_gen}
|
|
# NOTE: ${linker_script_gen} will be produced at build-time; not at configure-time
|
|
macro(configure_linker_script linker_script_gen linker_pass_define)
|
|
set(extra_dependencies ${ARGN})
|
|
set(template_script_defines ${linker_pass_define})
|
|
list(TRANSFORM template_script_defines PREPEND "-D")
|
|
|
|
# Different generators deal with depfiles differently.
|
|
if(CMAKE_GENERATOR STREQUAL "Unix Makefiles")
|
|
# Note that the IMPLICIT_DEPENDS option is currently supported only
|
|
# for Makefile generators and will be ignored by other generators.
|
|
set(linker_script_dep IMPLICIT_DEPENDS C ${LINKER_SCRIPT})
|
|
elseif(CMAKE_GENERATOR STREQUAL "Ninja")
|
|
# Using DEPFILE with other generators than Ninja is an error.
|
|
set(linker_script_dep DEPFILE ${PROJECT_BINARY_DIR}/${linker_script_gen}.dep)
|
|
else()
|
|
# TODO: How would the linker script dependencies work for non-linker
|
|
# script generators.
|
|
message(WARNING "This generator is not well supported. The
|
|
Linker script may not be regenerated when it should.")
|
|
set(linker_script_dep "")
|
|
endif()
|
|
|
|
zephyr_get_include_directories_for_lang(C current_includes)
|
|
get_property(current_defines GLOBAL PROPERTY PROPERTY_LINKER_SCRIPT_DEFINES)
|
|
|
|
add_custom_command(
|
|
OUTPUT ${linker_script_gen}
|
|
DEPENDS
|
|
${LINKER_SCRIPT}
|
|
${extra_dependencies}
|
|
# NB: 'linker_script_dep' will use a keyword that ends 'DEPENDS'
|
|
${linker_script_dep}
|
|
COMMAND ${CMAKE_C_COMPILER}
|
|
-x assembler-with-cpp
|
|
${NOSYSDEF_CFLAG}
|
|
-MD -MF ${linker_script_gen}.dep -MT ${linker_script_gen}
|
|
-D_LINKER
|
|
-D_ASMLANGUAGE
|
|
-imacros ${AUTOCONF_H}
|
|
${current_includes}
|
|
${current_defines}
|
|
${template_script_defines}
|
|
-E ${LINKER_SCRIPT}
|
|
-P # Prevent generation of debug `#line' directives.
|
|
-o ${linker_script_gen}
|
|
VERBATIM
|
|
WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
|
|
COMMAND_EXPAND_LISTS
|
|
)
|
|
endmacro()
|
|
|
|
# Force symbols to be entered in the output file as undefined symbols
|
|
function(toolchain_ld_force_undefined_symbols)
|
|
foreach(symbol ${ARGN})
|
|
zephyr_link_libraries(${LINKERFLAGPREFIX},-u,${symbol})
|
|
endforeach()
|
|
endfunction()
|
|
|
|
# Link a target to given libraries with toolchain-specific argument order
|
|
#
|
|
# Usage:
|
|
# toolchain_ld_link_elf(
|
|
# TARGET_ELF <target_elf>
|
|
# OUTPUT_MAP <output_map_file_of_target>
|
|
# LIBRARIES_PRE_SCRIPT [libraries_pre_script]
|
|
# LINKER_SCRIPT <linker_script>
|
|
# LIBRARIES_POST_SCRIPT [libraries_post_script]
|
|
# DEPENDENCIES [dependencies]
|
|
# )
|
|
function(toolchain_ld_link_elf)
|
|
cmake_parse_arguments(
|
|
TOOLCHAIN_LD_LINK_ELF # prefix of output variables
|
|
"" # list of names of the boolean arguments
|
|
"TARGET_ELF;OUTPUT_MAP;LINKER_SCRIPT" # list of names of scalar arguments
|
|
"LIBRARIES_PRE_SCRIPT;LIBRARIES_POST_SCRIPT;DEPENDENCIES" # list of names of list arguments
|
|
${ARGN} # input args to parse
|
|
)
|
|
|
|
target_link_libraries(
|
|
${TOOLCHAIN_LD_LINK_ELF_TARGET_ELF}
|
|
${TOOLCHAIN_LD_LINK_ELF_LIBRARIES_PRE_SCRIPT}
|
|
${TOPT}
|
|
${TOOLCHAIN_LD_LINK_ELF_LINKER_SCRIPT}
|
|
${TOOLCHAIN_LD_LINK_ELF_LIBRARIES_POST_SCRIPT}
|
|
|
|
${LINKERFLAGPREFIX},-Map=${TOOLCHAIN_LD_LINK_ELF_OUTPUT_MAP}
|
|
${LINKERFLAGPREFIX},--whole-archive
|
|
${WHOLE_ARCHIVE_LIBS}
|
|
${LINKERFLAGPREFIX},--no-whole-archive
|
|
${NO_WHOLE_ARCHIVE_LIBS}
|
|
$<TARGET_OBJECTS:${OFFSETS_LIB}>
|
|
${LIB_INCLUDE_DIR}
|
|
-L${PROJECT_BINARY_DIR}
|
|
${TOOLCHAIN_LIBS}
|
|
|
|
${TOOLCHAIN_LD_LINK_ELF_DEPENDENCIES}
|
|
)
|
|
endfunction(toolchain_ld_link_elf)
|
|
|
|
|
|
# Load toolchain_ld-family macros
|
|
include(${ZEPHYR_BASE}/cmake/linker/${LINKER}/target_base.cmake)
|
|
include(${ZEPHYR_BASE}/cmake/linker/${LINKER}/target_baremetal.cmake)
|
|
include(${ZEPHYR_BASE}/cmake/linker/${LINKER}/target_cpp.cmake)
|
|
include(${ZEPHYR_BASE}/cmake/linker/ld/target_relocation.cmake)
|
|
include(${ZEPHYR_BASE}/cmake/linker/ld/target_configure.cmake)
|