new build system and source file hierarchy

.gitignore

@@ -1,3 +1,4 @@
-build
+/build*/
 *.txt
+!CMakeLists.txt
 script

CMakeLists.txt

@@ -0,0 +1,130 @@
+cmake_minimum_required(VERSION 3.16)
+project(FxLibC VERSION 1.0.0 LANGUAGES C ASM)
+
+# Options
+
+# * -DFXLIBC_TARGET=<vhex-sh, vhex-x86, casiowin-fx, casiowin-cg, gint>
+# * -DSHARED
+
+option(SHARED "Build a shared library")
+option(STANDARD_NAMESPACE "Use libc.a and put headers in global include folder")
+
+set(TARGET_FOLDERS ${FXLIBC_TARGET})
+
+if(FXLIBC_TARGET STREQUAL vhex-sh)
+  list(APPEND TARGET_FOLDERS vhex-generic sh-generic)
+  set(FXLIBC_ARCH sh)
+  add_definitions(-D__SUPPORT_VHEX_KERNEL)
+endif()
+
+if(FXLIB_TARGET STREQUAL vhex-x86)
+  list(APPEND TARGET_FOLDERS vhex-generic x86-generic)
+  set(FXLIBC_ARCH x86)
+  add_definitions(-D__SUPPORT_VHEX_KERNEL)
+endif()
+
+if(FXLIBC_TARGET STREQUAL casiowin-fx)
+  list(APPEND TARGET_FOLDERS sh-generic)
+  set(FXLIBC_ARCH sh)
+  add_definitions(-D__SUPPORT_CASIOWIN_FX9860G)
+endif()
+
+if(FXLIBC_TARGET STREQUAL casiowin-cg)
+  list(APPEND TARGET_FOLDERS sh-generic)
+  set(FXLIBC_ARCH sh)
+  add_definitions(-D__SUPPORT_CASIOWIN_FXCG50)
+endif()
+
+if(FXLIBC_TARGET STREQUAL gint)
+  list(APPEND TARGET_FOLDERS sh-generic)
+  set(FXLIBC_ARCH sh)
+  add_definitions(-D__SUPPORT_GINT)
+endif()
+
+# TODO: Preprocessor definitions for configuration
+# configure_file()
+
+# libc.{a,so} libfxlibc.{a,so}
+
+add_compile_options(-Wall -Wextra -std=c11 -ffreestanding -Os)
+if(FXLIBC_ARCH STREQUAL sh)
+  add_compile_options(
+    "$<$<COMPILE_LANGUAGE:C>:-m3;-mb>"
+    "$<$<COMPILE_LANGUAGE:ASM>:-m4-nofpu;-mb;-Wa,--dsp>")
+endif()
+
+# Building
+
+set(SOURCES
+  src/libc/stdio/vsnprintf.c
+  src/libc/stdio/sprintf.c
+  src/libc/stdio/dprintf.c
+  src/libc/stdio/snprintf.c
+  src/libc/stdio/puts.c
+  src/libc/stdio/vsprintf.c
+  src/libc/stdio/putc.c
+  src/libc/stdio/internal/printf_actions.c
+  src/libc/stdio/internal/printf_options.c
+  src/libc/stdio/internal/printf_common.c
+  src/libc/stdio/internal/printf.h
+  src/libc/stdio/vdprintf.c
+  src/libc/stdio/printf.c
+  src/libc/stdlib/calloc.c
+  src/libc/stdlib/reallocarray.c
+  src/libc/string/strchr.c
+  src/libc/string/strcpy.c
+  src/libc/string/memcpy.c
+  src/libc/string/strcat.c
+  src/libc/string/memset.c
+  src/libc/string/strcmp.c
+  src/libc/string/strdup.c
+  src/libc/string/strlen.c)
+
+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/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)
+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/)
+
+# Install
+
+# TODO: Install in compiler vs. in another folder
+
+install(TARGETS fxlibc DESTINATION lib/)

cmake/toolchain-sh.cmake

@@ -0,0 +1,28 @@
+# fxSDK toolchain file for Casio graphing calculators
+# Target triplet: sh-elf (custom sh3eb-elf supporting sh3 and sh4-nofpu)
+
+set(CMAKE_SYSTEM_NAME Generic)
+set(CMAKE_SYSTEM_VERSION 1)
+set(CMAKE_SYSTEM_PROCESSOR sh)
+
+set(CMAKE_C_COMPILER sh-elf-gcc)
+set(CMAKE_CXX_COMPILER sh-elf-g++)
+
+set(CMAKE_C_FLAGS_INIT "")
+set(CMAKE_CXX_FLAGS_INIT "")
+
+add_compile_options(-nostdlib)
+add_link_options(-nostdlib)
+link_libraries(-lgcc)
+
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
+
+# Determine compiler install path
+execute_process(
+  COMMAND ${CMAKE_C_COMPILER} --print-file-name=.
+  OUTPUT_VARIABLE FXSDK_COMPILER_INSTALL
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+)

src/libc/stdio/internal/printf_actions.c

@@ -1,8 +1,7 @@
 #include <fxlibc/stdio.h>
 
 // internal depency
-// TODO: update path detection
-#include "../src/stdio/internal/printf.h"
+#include "printf.h"
 
 // Define all actions
 static void action_str(struct printf_opt *op, char n);

src/libc/stdio/internal/printf_common.c

@@ -1,8 +1,7 @@
 #include <fxlibc/stdio.h>
 
 // internal depency
-// TODO: update path detection
-#include "../src/stdio/internal/printf.h"
+#include "printf.h"
 
 //TODO: precision handling
 int printf_common(struct printf_opt *opt, const char *restrict format)

src/libc/stdio/internal/printf_options.c

@@ -1,8 +1,7 @@
 #include <fxlibc/stdio.h>
 
 // internal depency
-// TODO: update path detection
-#include "../src/stdio/internal/printf.h"
+#include "printf.h"
 
 static int get_flags(struct printf_opt *opt, const char *restrict format)
 {

src/libc/stdio/vdprintf.c

@@ -2,8 +2,7 @@
 #include <fxlibc/unistd.h>
 
 // internal depency
-// TODO: update path detection
-#include "../src/stdio/internal/printf.h"
+#include "internal/printf.h"
 
 // FIXME:
 // if the writte syscall do not return the same

src/libc/stdio/vsnprintf.c

@@ -1,8 +1,7 @@
 #include <fxlibc/stdio.h>
 
 // internal depency
-// TODO: update path detection
-#include "../src/stdio/internal/printf.h"
+#include "internal/printf.h"
 
 static void disp_char(struct printf_opt *opt, char n)
 {