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set(SOURCES
UBSanitizer.cpp
../MiniStdLib.cpp
)
if ("${SERENITY_ARCH}" STREQUAL "aarch64")
set(SOURCES
# This has to be first, so that the entry point is at the start of the image.
# Needed because:
# - execution starts at the start of the image
# - the stack pointer currently starts before the start symbol, so if the start symbol isn't the first symbol, the stack will clobber arbitrary code
# FIXME: Use an aarch64-specific linker script instead.
Arch/aarch64/boot.S
${SOURCES}
Arch/aarch64/MainIdRegister.cpp
Arch/aarch64/init.cpp
)
else()
set(SOURCES
${SOURCES}
Arch/x86/boot.S
Arch/x86/multiboot.S
# FIXME: Eventually, some of these should build on aarch64 too.
init.cpp
../../Userland/Libraries/LibELF/Relocation.cpp
)
endif()
if ("${SERENITY_ARCH}" STREQUAL "i686")
set(PREKERNEL_TARGET Prekernel32)
elseif ("${SERENITY_ARCH}" STREQUAL "x86_64")
set(PREKERNEL_TARGET Prekernel64)
else()
set(PREKERNEL_TARGET Prekernel)
endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static")
add_executable(${PREKERNEL_TARGET} ${SOURCES})
target_compile_options(${PREKERNEL_TARGET} PRIVATE -no-pie -fno-pic -fno-threadsafe-statics)
target_link_options(${PREKERNEL_TARGET} PRIVATE LINKER:-T ${CMAKE_CURRENT_SOURCE_DIR}/linker.ld -nostdlib LINKER:--no-pie)
set_target_properties(${PREKERNEL_TARGET} PROPERTIES LINK_DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/linker.ld)
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
target_link_libraries(${PREKERNEL_TARGET} PRIVATE gcc)
elseif(CMAKE_CXX_COMPILER_ID MATCHES "Clang$")
target_link_libraries(${PREKERNEL_TARGET} PRIVATE "clang_rt.builtins-${SERENITY_CLANG_ARCH}" c++abi)
endif()
if ("${SERENITY_ARCH}" STREQUAL "i686" OR "${SERENITY_ARCH}" STREQUAL "x86_64")
add_custom_command(
TARGET ${PREKERNEL_TARGET} POST_BUILD
COMMAND ${CMAKE_OBJCOPY} -O elf32-i386 ${CMAKE_CURRENT_BINARY_DIR}/${PREKERNEL_TARGET} ${CMAKE_CURRENT_BINARY_DIR}/Prekernel
BYPRODUCTS ${CMAKE_CURRENT_BINARY_DIR}/Prekernel
)
endif()
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/Prekernel" DESTINATION boot)
# Remove options which the Prekernel environment doesn't support.
get_target_property(PREKERNEL_TARGET_OPTIONS ${PREKERNEL_TARGET} COMPILE_OPTIONS)
list(REMOVE_ITEM PREKERNEL_TARGET_OPTIONS "-fsanitize-coverage=trace-pc")
list(REMOVE_ITEM PREKERNEL_TARGET_OPTIONS "-fsanitize=kernel-address")
set_target_properties(${PREKERNEL_TARGET} PROPERTIES COMPILE_OPTIONS "${PREKERNEL_TARGET_OPTIONS}")
|
