2017-04-03 18:08:12 +02:00
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cmake_minimum_required(VERSION 3.7)
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project(arch_x86_loader C ASM_NASM)
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## ASM sources
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file(GLOB ASM_SOURCES *.asm)
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add_library(arch_x86_loader_asm STATIC ${ASM_SOURCES})
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## C sources
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file(GLOB C_SOURCES *.c)
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add_executable(arch_x86_loader ${C_SOURCES})
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target_include_directories(arch_x86_loader
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PRIVATE include/)
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target_compile_options(arch_x86_loader
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PRIVATE -O2 -Wall -m64 -std=gnu99 -ffreestanding -mno-red-zone
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2017-08-07 20:57:28 +02:00
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-fomit-frame-pointer -fno-builtin -nostdlib -nostdinc -mno-sse -mno-avx -mno-mmx -mno-3dnow)
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2017-04-03 18:08:12 +02:00
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2017-08-07 09:26:13 +02:00
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include(CheckCCompilerFlag)
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check_c_compiler_flag(-fstrength-reduce HAS_STRENGTH_REDUCE)
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if (HAS_STRENGTH_REDUCE)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstrength-reduce")
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endif()
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check_c_compiler_flag(-finline-functions HAS_INLINE_FUNCTIONS)
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if (HAS_INLINE_FUNCTIONS)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -finline-functions")
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endif()
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2017-08-07 12:14:08 +02:00
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set(CMAKE_LINKER_NAME ld CACHE STRING "Name of the binutils linker")
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mark_as_advanced(CMAKE_LINKER_NAME)
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find_program(CMAKE_LINKER ${CMAKE_LINKER_NAME})
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mark_as_advanced(CMAKE_LINKER)
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if(NOT CMAKE_LINKER)
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message(FATAL_ERROR "Could not find the GNU LD linker: ${CMAKE_LINKER_NAME}")
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endif()
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set(CMAKE_C_LINK_EXECUTABLE "${CMAKE_LINKER} <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -T ${CMAKE_CURRENT_LIST_DIR}/link.ld -z max-page-size=4096 --build-id=none -nostdlib -static")
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target_link_libraries(arch_x86_loader arch_x86_loader_asm)
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2017-04-03 18:08:12 +02:00
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# tools/proxy looks for `ldhermit.elf`
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set_target_properties(arch_x86_loader PROPERTIES
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OUTPUT_NAME ldhermit.elf)
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add_custom_command(
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TARGET arch_x86_loader POST_BUILD
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# Split debug symbols into seperate file
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COMMAND
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${CMAKE_OBJCOPY} --only-keep-debug
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$<TARGET_FILE:arch_x86_loader>
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$<TARGET_FILE:arch_x86_loader>.sym
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# Qemu requires 32-bit ELF
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COMMAND
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${CMAKE_OBJCOPY} -O elf32-i386 --strip-debug
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$<TARGET_FILE:arch_x86_loader>)
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install(TARGETS arch_x86_loader
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DESTINATION bin)
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# Show include files in IDE
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file(GLOB_RECURSE ARCH_X86_LOADER_INCLUDES "include/*")
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add_custom_target(arch_x86_loader_includes_ide SOURCES ${ARCH_X86_LOADER_INCLUDES})
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