Boot Linux faster!

Check our new training course

Boot Linux faster!

Check our new training course
and Creative Commons CC-BY-SA
lecture and lab materials

Bootlin logo

Elixir Cross Referencer

# Copyright (c) 2019 Intel Corp.
# SPDX-License-Identifier: Apache-2.0

# Convert the .bin file argument to a .o file, create a wrapper
# library for the .o file, and register the library as a generated
# file that is to be linked in after the first link.
function(add_bin_file_to_the_next_link target_dependency bin)
  add_custom_command(
    OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${bin}.o
    COMMAND
    ${CMAKE_OBJCOPY}
    -I binary
    -B ${OUTPUT_ARCH}
    -O ${OUTPUT_FORMAT}
    --rename-section .data=${bin},CONTENTS,ALLOC,LOAD,READONLY,DATA
    ${bin}.bin
    ${bin}.o
    DEPENDS ${target_dependency} ${bin}.bin
    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
    )
  add_custom_target(${bin}_o DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${bin}.o)
  add_library(${bin} STATIC IMPORTED GLOBAL)
  set_property(TARGET ${bin} PROPERTY IMPORTED_LOCATION ${CMAKE_CURRENT_BINARY_DIR}/${bin}.o)
  add_dependencies(${bin} ${bin}_o)
  set_property(GLOBAL APPEND PROPERTY GENERATED_KERNEL_OBJECT_FILES ${bin})
endfunction()

if(CONFIG_X86_64)
  include(intel64.cmake)
else()
  include(ia32.cmake)
endif()

# Always set for 64-bit (long mode requires page tables), optional for 32-bit
if (CONFIG_MMU)
  set(GEN_MMU ${ZEPHYR_BASE}/arch/x86/gen_mmu.py)

  add_custom_target(
    pagetables_bin_target
    DEPENDS
    pagetables.bin
  )
  add_custom_command(
    OUTPUT pagetables.bin
    COMMAND
    ${PYTHON_EXECUTABLE}
    ${GEN_MMU}
    --kernel $<TARGET_FILE:${ZEPHYR_PREBUILT_EXECUTABLE}>
    --output pagetables.bin
    $<$<BOOL:${CMAKE_VERBOSE_MAKEFILE}>:--verbose>
    WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
    DEPENDS ${ZEPHYR_PREBUILT_EXECUTABLE} ${GEN_MMU}
  )

  add_bin_file_to_the_next_link(pagetables_bin_target pagetables)
endif()

if(CONFIG_ARCH_HAS_TIMING_FUNCTIONS AND
    NOT CONFIG_SOC_HAS_TIMING_FUNCTIONS AND
    NOT CONFIG_BOARD_HAS_TIMING_FUNCTIONS)
zephyr_library_sources_ifdef(CONFIG_TIMING_FUNCTIONS timing.c)
endif()