banan-os/libc/CMakeLists.txt

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cmake_minimum_required(VERSION 3.26)
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project(libc CXX ASM)
set(LIBC_SOURCES
assert.cpp
ctype.cpp
dirent.cpp
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fcntl.cpp
malloc.cpp
printf_impl.cpp
pwd.cpp
signal.cpp
stdio.cpp
stdlib.cpp
string.cpp
sys/banan-os.cpp
sys/mman.cpp
sys/stat.cpp
sys/wait.cpp
termios.cpp
time.cpp
unistd.cpp
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math.S
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icxxabi.cpp
)
add_custom_target(libc-headers
COMMAND ${CMAKE_COMMAND} -E copy_directory_if_different ${CMAKE_CURRENT_SOURCE_DIR}/include/ ${BANAN_INCLUDE}/
DEPENDS sysroot
)
add_custom_target(crtx
COMMAND ${CMAKE_C_COMPILER} -c ${CMAKE_CURRENT_SOURCE_DIR}/arch/${BANAN_ARCH}/crt0.S -o crt0.o
COMMAND ${CMAKE_C_COMPILER} -c ${CMAKE_CURRENT_SOURCE_DIR}/arch/${BANAN_ARCH}/crti.S -o crti.o
COMMAND ${CMAKE_C_COMPILER} -c ${CMAKE_CURRENT_SOURCE_DIR}/arch/${BANAN_ARCH}/crtn.S -o crtn.o
)
add_custom_target(crtx-install
COMMAND ${CMAKE_COMMAND} -E copy crt0.o ${BANAN_LIB}/
COMMAND ${CMAKE_COMMAND} -E copy crti.o ${BANAN_LIB}/
COMMAND ${CMAKE_COMMAND} -E copy crtn.o ${BANAN_LIB}/
DEPENDS crtx
)
add_library(libc ${LIBC_SOURCES})
add_dependencies(libc headers crtx-install)
target_compile_options(libc PRIVATE -g -Wstack-usage=512)
add_custom_target(libc-install
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_CURRENT_BINARY_DIR}/libc.a ${BANAN_LIB}/
DEPENDS libc
BYPRODUCTS ${BANAN_LIB}/libc.a
)
set(CMAKE_STATIC_LIBRARY_PREFIX "")