Clean up cmake files (Part 2)
I've kept just one cmake project, in the root directory. The subdirectories just set up the targets. The asm compiler is serached just one time, from the root directory cmake file. Global compilation flags are set in the root cmake file, and each subdirectory cmake file sets specific flags if necessary (e.g., programs need the -u_start specified)
This commit is contained in:
Enrico Fraccaroli (Galfurian)
+67
-138
@@ -1,148 +1,77 @@
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# =============================================================================
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# Author: Enrico Fraccaroli
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# LIBRARY
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# =============================================================================
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# Set the minimum required version of cmake.
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cmake_minimum_required(VERSION 3.1...3.22)
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# Initialize the project.
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project(libc C ASM)
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# =============================================================================
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# ASSEMBLY
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# =============================================================================
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# Enable the assembly language.
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enable_language(ASM)
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# Find the NASM compiler.
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find_program(ASM_COMPILER NAMES nasm HINTS /usr/bin/ /usr/local/bin/)
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# Mark the variable ASM_COMPILER as advanced.
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mark_as_advanced(ASM_COMPILER)
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# Check that we have found the compiler.
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if(NOT ASM_COMPILER)
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message(FATAL_ERROR "ASM compiler not found!")
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endif(NOT ASM_COMPILER)
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# Set the asm compiler.
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set(CMAKE_ASM_COMPILER ${ASM_COMPILER})
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# Set the assembly compiler flags.
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if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> -f elf -g -O0 -F dwarf -o <OBJECT> <SOURCE>")
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else()
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set(CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> -f elf -g -O3 -o <OBJECT> <SOURCE>")
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endif()
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# =============================================================================
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# C WARNINGs
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# =============================================================================
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# Warning flags.
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wpedantic")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic-errors")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99")
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# Disable some specific warnings.
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-function")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-variable")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unknown-pragmas")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-missing-braces")
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# Set the compiler options.
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -static")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostdlib")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostdinc")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-builtin")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-stack-protector")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-pic")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fomit-frame-pointer")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=i686")
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if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fcommon")
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endif()
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if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g3")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ggdb")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O0")
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elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
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endif(CMAKE_BUILD_TYPE STREQUAL "Debug")
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# =============================================================================
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# Add the library.
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add_library(
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${PROJECT_NAME}
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${PROJECT_SOURCE_DIR}/src/stdio.c
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${PROJECT_SOURCE_DIR}/src/ctype.c
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${PROJECT_SOURCE_DIR}/src/string.c
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${PROJECT_SOURCE_DIR}/src/stdlib.c
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${PROJECT_SOURCE_DIR}/src/math.c
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${PROJECT_SOURCE_DIR}/src/fcvt.c
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${PROJECT_SOURCE_DIR}/src/time.c
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${PROJECT_SOURCE_DIR}/src/strerror.c
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${PROJECT_SOURCE_DIR}/src/termios.c
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${PROJECT_SOURCE_DIR}/src/libgen.c
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${PROJECT_SOURCE_DIR}/src/vsprintf.c
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${PROJECT_SOURCE_DIR}/src/vscanf.c
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${PROJECT_SOURCE_DIR}/src/pwd.c
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${PROJECT_SOURCE_DIR}/src/grp.c
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${PROJECT_SOURCE_DIR}/src/sched.c
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${PROJECT_SOURCE_DIR}/src/readline.c
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${PROJECT_SOURCE_DIR}/src/setenv.c
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${PROJECT_SOURCE_DIR}/src/assert.c
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${PROJECT_SOURCE_DIR}/src/abort.c
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${PROJECT_SOURCE_DIR}/src/io/mm_io.c
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${PROJECT_SOURCE_DIR}/src/io/debug.c
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${PROJECT_SOURCE_DIR}/src/sys/ipc.c
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${PROJECT_SOURCE_DIR}/src/sys/unistd.c
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${PROJECT_SOURCE_DIR}/src/sys/errno.c
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${PROJECT_SOURCE_DIR}/src/sys/utsname.c
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${PROJECT_SOURCE_DIR}/src/sys/mman.c
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${PROJECT_SOURCE_DIR}/src/sys/ioctl.c
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${PROJECT_SOURCE_DIR}/src/unistd/creat.c
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${PROJECT_SOURCE_DIR}/src/unistd/getppid.c
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${PROJECT_SOURCE_DIR}/src/unistd/getpid.c
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${PROJECT_SOURCE_DIR}/src/unistd/exit.c
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${PROJECT_SOURCE_DIR}/src/unistd/setsid.c
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${PROJECT_SOURCE_DIR}/src/unistd/getsid.c
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${PROJECT_SOURCE_DIR}/src/unistd/setpgid.c
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${PROJECT_SOURCE_DIR}/src/unistd/getpgid.c
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${PROJECT_SOURCE_DIR}/src/unistd/setgid.c
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${PROJECT_SOURCE_DIR}/src/unistd/getgid.c
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${PROJECT_SOURCE_DIR}/src/unistd/setuid.c
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${PROJECT_SOURCE_DIR}/src/unistd/getuid.c
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${PROJECT_SOURCE_DIR}/src/unistd/fork.c
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${PROJECT_SOURCE_DIR}/src/unistd/read.c
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${PROJECT_SOURCE_DIR}/src/unistd/write.c
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${PROJECT_SOURCE_DIR}/src/unistd/exec.c
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${PROJECT_SOURCE_DIR}/src/unistd/nice.c
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${PROJECT_SOURCE_DIR}/src/unistd/open.c
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${PROJECT_SOURCE_DIR}/src/unistd/reboot.c
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${PROJECT_SOURCE_DIR}/src/unistd/waitpid.c
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${PROJECT_SOURCE_DIR}/src/unistd/chdir.c
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${PROJECT_SOURCE_DIR}/src/unistd/getcwd.c
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${PROJECT_SOURCE_DIR}/src/unistd/close.c
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${PROJECT_SOURCE_DIR}/src/unistd/stat.c
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${PROJECT_SOURCE_DIR}/src/unistd/rmdir.c
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${PROJECT_SOURCE_DIR}/src/unistd/mkdir.c
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${PROJECT_SOURCE_DIR}/src/unistd/unlink.c
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${PROJECT_SOURCE_DIR}/src/unistd/getdents.c
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${PROJECT_SOURCE_DIR}/src/unistd/lseek.c
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${PROJECT_SOURCE_DIR}/src/unistd/kill.c
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${PROJECT_SOURCE_DIR}/src/unistd/signal.c
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${PROJECT_SOURCE_DIR}/src/unistd/interval.c
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${PROJECT_SOURCE_DIR}/src/unistd/symlink.c
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${PROJECT_SOURCE_DIR}/src/unistd/readlink.c
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${PROJECT_SOURCE_DIR}/src/libc_start.c
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${PROJECT_SOURCE_DIR}/src/crt0.S
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libc
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${CMAKE_SOURCE_DIR}/libc/src/stdio.c
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${CMAKE_SOURCE_DIR}/libc/src/ctype.c
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${CMAKE_SOURCE_DIR}/libc/src/string.c
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${CMAKE_SOURCE_DIR}/libc/src/stdlib.c
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${CMAKE_SOURCE_DIR}/libc/src/math.c
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${CMAKE_SOURCE_DIR}/libc/src/fcvt.c
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${CMAKE_SOURCE_DIR}/libc/src/time.c
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${CMAKE_SOURCE_DIR}/libc/src/strerror.c
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${CMAKE_SOURCE_DIR}/libc/src/termios.c
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${CMAKE_SOURCE_DIR}/libc/src/libgen.c
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${CMAKE_SOURCE_DIR}/libc/src/vsprintf.c
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${CMAKE_SOURCE_DIR}/libc/src/vscanf.c
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${CMAKE_SOURCE_DIR}/libc/src/pwd.c
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${CMAKE_SOURCE_DIR}/libc/src/grp.c
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${CMAKE_SOURCE_DIR}/libc/src/sched.c
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${CMAKE_SOURCE_DIR}/libc/src/readline.c
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${CMAKE_SOURCE_DIR}/libc/src/setenv.c
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${CMAKE_SOURCE_DIR}/libc/src/assert.c
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${CMAKE_SOURCE_DIR}/libc/src/abort.c
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${CMAKE_SOURCE_DIR}/libc/src/io/mm_io.c
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${CMAKE_SOURCE_DIR}/libc/src/io/debug.c
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${CMAKE_SOURCE_DIR}/libc/src/sys/ipc.c
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${CMAKE_SOURCE_DIR}/libc/src/sys/unistd.c
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${CMAKE_SOURCE_DIR}/libc/src/sys/errno.c
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${CMAKE_SOURCE_DIR}/libc/src/sys/utsname.c
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${CMAKE_SOURCE_DIR}/libc/src/sys/mman.c
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${CMAKE_SOURCE_DIR}/libc/src/sys/ioctl.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/creat.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/getppid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/getpid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/exit.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/setsid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/getsid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/setpgid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/getpgid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/setgid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/getgid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/setuid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/getuid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/fork.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/read.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/write.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/exec.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/nice.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/open.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/reboot.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/waitpid.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/chdir.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/getcwd.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/close.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/stat.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/rmdir.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/mkdir.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/unlink.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/getdents.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/lseek.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/kill.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/signal.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/interval.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/symlink.c
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${CMAKE_SOURCE_DIR}/libc/src/unistd/readlink.c
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${CMAKE_SOURCE_DIR}/libc/src/libc_start.c
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${CMAKE_SOURCE_DIR}/libc/src/crt0.S
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)
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# Add the includes.
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target_include_directories(${PROJECT_NAME} PUBLIC inc)
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target_include_directories(libc PUBLIC inc)
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# Remove the 'lib' prefix.
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set_target_properties(${PROJECT_NAME} PROPERTIES PREFIX "")
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set_target_properties(libc PROPERTIES PREFIX "")
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