5db1f1ae8f
Remove the toolchain_ld_<base|baremetal|cpp> macro as all the macro handling is now done through the use of linker properties. Keep support for calling the old macros for out of tree toolchains which have not been updated to the new property approach. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
112 lines
4.7 KiB
CMake
112 lines
4.7 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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set_property(TARGET linker PROPERTY devices_start_symbol "Image$$device$$Base")
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find_program(CMAKE_LINKER ${CROSS_COMPILE}armlink PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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add_custom_target(armlink)
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function(toolchain_ld_force_undefined_symbols)
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foreach(symbol ${ARGN})
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zephyr_link_libraries(--undefined=${symbol})
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endforeach()
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endfunction()
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macro(configure_linker_script linker_script_gen linker_pass_define)
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set(STEERING_FILE)
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set(STEERING_C)
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set(STEERING_FILE_ARG)
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set(STEERING_C_ARG)
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set(linker_pass_define_list ${linker_pass_define})
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if("LINKER_ZEPHYR_FINAL" IN_LIST linker_pass_define_list)
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set(STEERING_FILE ${CMAKE_CURRENT_BINARY_DIR}/armlink_symbol_steering.steer)
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set(STEERING_C ${CMAKE_CURRENT_BINARY_DIR}/armlink_symbol_steering.c)
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set(STEERING_FILE_ARG "-DSTEERING_FILE=${STEERING_FILE}")
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set(STEERING_C_ARG "-DSTEERING_C=${STEERING_C}")
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endif()
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add_custom_command(
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OUTPUT ${linker_script_gen}
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${STEERING_FILE}
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${STEERING_C}
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COMMAND ${CMAKE_COMMAND}
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-DPASS="${linker_pass_define}"
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-DMEMORY_REGIONS="$<TARGET_PROPERTY:linker,MEMORY_REGIONS>"
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-DGROUPS="$<TARGET_PROPERTY:linker,GROUPS>"
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-DSECTIONS="$<TARGET_PROPERTY:linker,SECTIONS>"
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-DSECTION_SETTINGS="$<TARGET_PROPERTY:linker,SECTION_SETTINGS>"
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-DSYMBOLS="$<TARGET_PROPERTY:linker,SYMBOLS>"
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${STEERING_FILE_ARG}
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${STEERING_C_ARG}
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-DOUT_FILE=${CMAKE_CURRENT_BINARY_DIR}/${linker_script_gen}
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-P ${ZEPHYR_BASE}/cmake/linker/armlink/scatter_script.cmake
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)
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if("LINKER_ZEPHYR_FINAL" IN_LIST linker_pass_define_list)
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add_library(armlink_steering OBJECT ${STEERING_C})
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target_link_libraries(armlink_steering PRIVATE zephyr_interface)
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endif()
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endmacro()
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function(toolchain_ld_link_elf)
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cmake_parse_arguments(
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TOOLCHAIN_LD_LINK_ELF # prefix of output variables
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"" # list of names of the boolean arguments
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"TARGET_ELF;OUTPUT_MAP;LINKER_SCRIPT" # list of names of scalar arguments
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"LIBRARIES_PRE_SCRIPT;LIBRARIES_POST_SCRIPT;DEPENDENCIES" # list of names of list arguments
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${ARGN} # input args to parse
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)
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foreach(lib ${ZEPHYR_LIBS_PROPERTY})
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if(NOT ${lib} STREQUAL arch__arm__core__cortex_m)
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list(APPEND ZEPHYR_LIBS_OBJECTS $<TARGET_OBJECTS:${lib}>)
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list(APPEND ZEPHYR_LIBS_OBJECTS $<TARGET_PROPERTY:${lib},LINK_LIBRARIES>)
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endif()
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endforeach()
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target_link_libraries(
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${TOOLCHAIN_LD_LINK_ELF_TARGET_ELF}
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${TOOLCHAIN_LD_LINK_ELF_LIBRARIES_PRE_SCRIPT}
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--scatter=${TOOLCHAIN_LD_LINK_ELF_LINKER_SCRIPT}
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${TOOLCHAIN_LD_LINK_ELF_LIBRARIES_POST_SCRIPT}
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$<TARGET_OBJECTS:arch__arm__core__cortex_m>
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--map --list=${TOOLCHAIN_LD_LINK_ELF_OUTPUT_MAP}
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${ZEPHYR_LIBS_OBJECTS}
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kernel
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$<TARGET_OBJECTS:${OFFSETS_LIB}>
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--library_type=microlib
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--entry=$<TARGET_PROPERTY:linker,ENTRY>
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"--keep=\"*.o(.init_*)\""
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"--keep=\"*.o(.device_*)\""
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$<TARGET_OBJECTS:armlink_steering>
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--edit=${CMAKE_CURRENT_BINARY_DIR}/armlink_symbol_steering.steer
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# Resolving symbols using generated steering files will emit the warnings 6331 and 6332.
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# Steering files are used because we want to be able to use `__device_end` instead of `Image$$device$$Limit`.
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# Thus silence those two warnings.
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--diag_suppress=6331,6332
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# The scatter file is generated, and thus sometimes input sections are specified
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# even though there will be no such sections found in the libraries linked.
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--diag_suppress=6314
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# We use empty execution sections in order to define custom symbols, such as
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# __kernel_ram_x symbols, but nothing will go in those section, so silence
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# the warning. Note, marking the section EMPTY causes armlink to reserve the
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# address which in some cases leads to overlapping section errors.
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--diag_suppress=6312
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# Use of '.gnu.linkonce' sections. Those are used by ld, and # supported by armlink, albeit
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# deprecated there. For current ARMClang support phase, we accept this warning, but we should
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# look into changing to COMDAT groups.
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--diag_suppress=6092
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# Wildcard matching of keep sections, Those are needed for gnu ld, and thus we inherit the same
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# keep flags and apply them to armlink. Consider adjusting keep flags per linker in future.
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--diag_suppress=6319
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# Match pattern for an unused section that is being removed.
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--diag_suppress=6329
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${TOOLCHAIN_LIBS_OBJECTS}
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${TOOLCHAIN_LD_LINK_ELF_DEPENDENCIES}
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)
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endfunction(toolchain_ld_link_elf)
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include(${ZEPHYR_BASE}/cmake/linker/ld/target_relocation.cmake)
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include(${ZEPHYR_BASE}/cmake/linker/ld/target_configure.cmake)
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