blob: 0c412a42f010b9d3d247bf7b897d21f4f0225b3b [file] [log] [blame]
# SPDX-License-Identifier: Apache-2.0
find_program(CMAKE_LINKER ${CROSS_COMPILE}ld PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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})
# 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(STATUS "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_filename_component(base_name ${CMAKE_CURRENT_BINARY_DIR} NAME)
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 ${base_name}/${linker_script_gen}
${current_includes}
${current_defines}
${linker_pass_define}
-E ${LINKER_SCRIPT}
-P # Prevent generation of debug `#line' directives.
-o ${linker_script_gen}
VERBATIM
WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
)
endmacro()
# Load toolchain_ld-family macros
include(${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)