fxlibc/CMakeLists.txt

cmake_minimum_required(VERSION 3.15)
project(FxLibc VERSION 1.3.0 LANGUAGES C ASM)

set(CMAKE_INSTALL_MESSAGE LAZY)

# Options

# * -DFXLIBC_TARGET=<vhex-sh, vhex-x86, casiowin-fx, casiowin-cg, gint>
# * -DFXLIBC_SHARED=1

option(SHARED "Build a shared library")
option(STANDARD_NAMESPACE "Use libc.a and put headers in global include folder")

set(TARGET_FOLDERS ${FXLIBC_TARGET})
# Install paths
set(LIBDIR "lib")
set(INCDIR "include")

if(FXLIBC_TARGET STREQUAL vhex-sh)
  list(APPEND TARGET_FOLDERS vhex-generic sh-generic)
  set(FXLIBC_ARCH sh)
  add_definitions(-D__SUPPORT_VHEX_KERNEL)
  # set(FXLIBC_SHARED ON)
endif()

if(FXLIBC_TARGET STREQUAL vhex-x86)
  list(APPEND TARGET_FOLDERS vhex-generic x86-generic)
  set(FXLIBC_ARCH x86)
  add_definitions(-D__SUPPORT_VHEX_KERNEL)
  # set(FXLIBC_SHARED ON)
  # TODO: Maybe add -nostdinc (but that removes compiler-provided headers like
  # <stddef.h>), or use another compiler than the system one?
endif()

if(FXLIBC_TARGET STREQUAL casiowin-fx)
  list(APPEND TARGET_FOLDERS sh-generic)
  set(FXLIBC_ARCH sh)
  add_definitions(-D__SUPPORT_CASIOWIN_FX9860G)
endif()

if(FXLIBC_TARGET STREQUAL casiowin-cg)
  list(APPEND TARGET_FOLDERS sh-generic)
  set(FXLIBC_ARCH sh)
  add_definitions(-D__SUPPORT_CASIOWIN_FXCG50)
endif()

if(FXLIBC_TARGET STREQUAL gint)
  list(APPEND TARGET_FOLDERS sh-generic)
  set(FXLIBC_ARCH sh)
  add_definitions(-D__SUPPORT_GINT)

  # Default to fxSDK install path
  if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
    set(CMAKE_INSTALL_PREFIX "${FXSDK_COMPILER_INSTALL}" CACHE PATH "..." FORCE)
  endif()

  if(CMAKE_INSTALL_PREFIX STREQUAL "${FXSDK_COMPILER_INSTALL}")
    set(LIBDIR ".")
    set(INCDIR "include")
  endif()
endif()

if(sh-generic IN_LIST TARGET_FOLDERS)
  add_definitions(-D__SUPPORT_ARCH_SH)
endif()

if(x86-generic IN_LIST TARGET_FOLDERS)
  add_definitions(-D__SUPPORT_ARCH_X86)
endif()

# TODO: Preprocessor definitions for configuration
# configure_file()

# libc.{a,so} libfxlibc.{a,so}

add_compile_options(-Wall -Wextra -std=c11 -ffreestanding -Os)
if(FXLIBC_ARCH STREQUAL sh)
  add_compile_options(
    "$<$<COMPILE_LANGUAGE:C>:-m3;-mb>"
    "$<$<COMPILE_LANGUAGE:ASM>:-m4-nofpu;-mb;-Wa,--dsp>")
endif()

# Building

set(SOURCES
  # 3rdparty
  3rdparty/grisu2b_59_56/grisu2b_59_56.c
  3rdparty/tinymt32/rand.c
  3rdparty/tinymt32/tinymt32.c
  # assert
  src/libc/assert/assert.c
  # ctype
  src/libc/ctype/isalnum.c
  src/libc/ctype/isalpha.c
  src/libc/ctype/isblank.c
  src/libc/ctype/iscntrl.c
  src/libc/ctype/isdigit.c
  src/libc/ctype/isgraph.c
  src/libc/ctype/islower.c
  src/libc/ctype/isprint.c
  src/libc/ctype/ispunct.c
  src/libc/ctype/isspace.c
  src/libc/ctype/isupper.c
  src/libc/ctype/isxdigit.c
  src/libc/ctype/tolower.c
  src/libc/ctype/toupper.c
  # errno
  src/libc/errno/errno.c
  # inttypes
  src/libc/inttypes/imaxabs.c
  src/libc/inttypes/imaxdiv.c
  src/libc/inttypes/strtoimax.c
  src/libc/inttypes/strtoumax.c
  # locale
  src/libc/locale/setlocale.c
  src/libc/locale/localeconv.c
  # signal
  src/libc/signal/signal.c
  src/libc/signal/raise.c
  # stdio
  src/libc/stdio/asprintf.c
  src/libc/stdio/clearerr.c
  src/libc/stdio/dprintf.c
  src/libc/stdio/fclose.c
  src/libc/stdio/fdopen.c
  src/libc/stdio/ferror.c
  src/libc/stdio/feof.c
  src/libc/stdio/fflush.c
  src/libc/stdio/fgetc.c
  src/libc/stdio/fgetpos.c
  src/libc/stdio/fgets.c
  src/libc/stdio/fileutil.c
  src/libc/stdio/fopen.c
  src/libc/stdio/fprintf.c
  src/libc/stdio/fputc.c
  src/libc/stdio/fputs.c
  src/libc/stdio/fread.c
  src/libc/stdio/freopen.c
  src/libc/stdio/fseek.c
  src/libc/stdio/fsetpos.c
  src/libc/stdio/ftell.c
  src/libc/stdio/fwrite.c
  src/libc/stdio/getc.c
  src/libc/stdio/getchar.c
  src/libc/stdio/gets.c
  src/libc/stdio/perror.c
  src/libc/stdio/printf.c
  src/libc/stdio/printf/format_fixed.c
  src/libc/stdio/printf/format_fp.c
  src/libc/stdio/printf/format_usual.c
  src/libc/stdio/printf/print.c
  src/libc/stdio/printf/util.c
  src/libc/stdio/putc.c
  src/libc/stdio/putchar.c
  src/libc/stdio/puts.c
  src/libc/stdio/remove.c
  src/libc/stdio/rewind.c
  src/libc/stdio/setbuf.c
  src/libc/stdio/setvbuf.c
  src/libc/stdio/snprintf.c
  src/libc/stdio/sprintf.c
  src/libc/stdio/streams.c
  src/libc/stdio/ungetc.c
  src/libc/stdio/vasprintf.c
  src/libc/stdio/vdprintf.c
  src/libc/stdio/vfprintf.c
  src/libc/stdio/vprintf.c
  src/libc/stdio/vsnprintf.c
  src/libc/stdio/vsprintf.c
  # stdlib
  src/libc/stdlib/abort.c
  src/libc/stdlib/abs.c
  src/libc/stdlib/atof.c
  src/libc/stdlib/atoi.c
  src/libc/stdlib/atol.c
  src/libc/stdlib/atoll.c
  src/libc/stdlib/calloc.c
  src/libc/stdlib/div.c
  src/libc/stdlib/exit.c
  src/libc/stdlib/labs.c
  src/libc/stdlib/ldiv.c
  src/libc/stdlib/llabs.c
  src/libc/stdlib/lldiv.c
  src/libc/stdlib/qsort.c
  src/libc/stdlib/reallocarray.c
  src/libc/stdlib/strto_fp.c
  src/libc/stdlib/strto_int.c
  src/libc/stdlib/strtod.c
  src/libc/stdlib/strtof.c
  src/libc/stdlib/strtol.c
  src/libc/stdlib/strtold.c
  src/libc/stdlib/strtoll.c
  src/libc/stdlib/strtoul.c
  src/libc/stdlib/strtoull.c
  # string
  src/libc/string/memchr.c
  src/libc/string/memcmp.c
  src/libc/string/memcpy.c
  src/libc/string/memmove.c
  src/libc/string/memrchr.c
  src/libc/string/memset.c
  src/libc/string/strcasecmp.c
  src/libc/string/strcasestr.c
  src/libc/string/strcat.c
  src/libc/string/strchr.c
  src/libc/string/strchrnul.c
  src/libc/string/strcmp.c
  src/libc/string/strcoll.c
  src/libc/string/strcpy.c
  src/libc/string/strcspn.c
  src/libc/string/strdup.c
  src/libc/string/strerror.c
  src/libc/string/strlen.c
  src/libc/string/strncasecmp.c
  src/libc/string/strncat.c
  src/libc/string/strncmp.c
  src/libc/string/strncpy.c
  src/libc/string/strndup.c
  src/libc/string/strnlen.c
  src/libc/string/strpbrk.c
  src/libc/string/strrchr.c
  src/libc/string/strspn.c
  src/libc/string/strstr.c
  src/libc/string/strstr_base.c
  src/libc/string/strtok.c
  src/libc/string/strxfrm.c
  # time
  src/libc/time/asctime.c
  src/libc/time/ctime.c
  src/libc/time/difftime.c
  src/libc/time/gmtime.c
  src/libc/time/localtime.c
  src/libc/time/mktime.c
  src/libc/time/strftime.c)

# Silence extended warnings on Grisu2b code
set_source_files_properties(3rdparty/grisu2b_59_56/grisu2b_59_56.c PROPERTIES
  COMPILE_OPTIONS "-Wno-all;-Wno-extra")

if(vhex-generic IN_LIST TARGET_FOLDERS)
  # TODO
endif()

if(vhex-sh IN_LIST TARGET_FOLDERS)
  list(APPEND SOURCES
    src/libc/signal/target/vhex-sh/kill.S
    src/libc/signal/target/vhex-sh/signal.S
    src/libc/stdlib/target/vhex-sh/_Exit.S
    src/libc/stdlib/target/vhex-sh/free.S
    src/libc/stdlib/target/vhex-sh/malloc.S
    src/libc/stdlib/target/vhex-sh/realloc.S
    src/posix/fcntl/target/vhex-sh/open.S
    src/posix/sys/wait/target/vhex-sh/wait.S
    src/posix/sys/wait/target/vhex-sh/waitpid.S
    src/posix/unistd/target/vhex-sh/read.S
    src/posix/unistd/target/vhex-sh/getppid.S
    src/posix/unistd/target/vhex-sh/close.S
    src/posix/unistd/target/vhex-sh/fork_execve.S
    src/posix/unistd/target/vhex-sh/lseek.S
    src/posix/unistd/target/vhex-sh/getpid.S
    src/posix/unistd/target/vhex-sh/getpgid.S
    src/posix/unistd/target/vhex-sh/setpgid.S
    src/posix/unistd/target/vhex-sh/write.S)
endif()

if(sh-generic IN_LIST TARGET_FOLDERS)
  list(APPEND SOURCES
    src/libc/setjmp/target/sh-generic/setjmp.S
    src/libc/setjmp/target/sh-generic/longjmp.S
    src/libc/string/target/sh-generic/memchr.S
    src/libc/string/target/sh-generic/memcmp.S
    src/libc/string/target/sh-generic/memcpy.S
    src/libc/string/target/sh-generic/memmove.S
    src/libc/string/target/sh-generic/memset.S
    src/libc/string/target/sh-generic/strlen.S
    src/target/sh-generic/cpucap.c)
endif()

if(gint IN_LIST TARGET_FOLDERS)
  list(APPEND SOURCES
    # stdlib
    src/libc/stdlib/target/gint/free.c
    src/libc/stdlib/target/gint/malloc.c
    src/libc/stdlib/target/gint/realloc.c
    # time
    src/libc/time/target/gint/clock.c
    src/libc/time/target/gint/time.c)
endif()

if(casiowin-fx IN_LIST TARGET_FOLDERS)
  list(APPEND SOURCES
    src/posix/unistd/target/casiowin-fx/close.S)
endif()

# TODO: All targets

add_library(fxlibc ${SOURCES})

target_include_directories(fxlibc PRIVATE include/)
if(sh-generic IN_LIST TARGET_FOLDERS)
  target_include_directories(fxlibc PRIVATE "${FXSDK_COMPILER_INSTALL}/include/openlibm")
endif()

if(FXLIBC_SHARED)
  target_compile_options(fxlibc PRIVATE -fPIC)

  if("${FXLIBC_ARCH}" STREQUAL "sh")
    # Original command: "ar qc <TARGET> <OBJECTS>; ranlib <TARGET>"
    set(CMAKE_C_CREATE_STATIC_LIBRARY
      "sh-elf-ld -shared <OBJECTS> -o <TARGET>")
  else()
    message(SEND_ERROR "TODO: Shared vhex on non-SuperH not available yet")
  endif()
endif()

foreach(FOLDER IN LISTS TARGET_FOLDERS)
  target_include_directories(fxlibc PRIVATE include/target/${FOLDER}/)
endforeach()

set_target_properties(fxlibc PROPERTIES
  OUTPUT_NAME "c") # libc.a

# Install

install(TARGETS fxlibc DESTINATION ${LIBDIR})
install(DIRECTORY include/ DESTINATION ${INCDIR} PATTERN "target" EXCLUDE)

foreach(FOLDER IN LISTS TARGET_FOLDERS)
  if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/include/target/${FOLDER}")
    install(DIRECTORY include/target/${FOLDER}/ DESTINATION ${INCDIR})
  endif()
endforeach()