fxlibc - v1.4.1 : update Vhex stdlib

@update
> malloc  : do not use syscall, involve kmalloc
> realloc : do not use syscall, involve krealloc
> free    : do not use syscall, involve kfree

@fix
> _Exit : remove syscall

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.15)
-project(FxLibc VERSION 1.4.0 LANGUAGES C ASM)
+project(FxLibc VERSION 1.4.1 LANGUAGES C ASM)
 
 set(CMAKE_INSTALL_MESSAGE LAZY)
 
@@ -242,10 +242,9 @@ 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.c
-    src/libc/stdlib/target/vhex-sh/free.S
+    src/libc/stdlib/target/vhex-sh/malloc.c
-    src/libc/stdlib/target/vhex-sh/malloc.S
+    src/libc/stdlib/target/vhex-sh/realloc.c
-    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/libc/stdlib/target/vhex-sh/_Exit.S

@@ -1,12 +0,0 @@
-#include <bits/asm/unistd_32.h>
-.text
-.global	__Exit
-.type	__Exit, @function
-
-
-.align 2
-__Exit:
-	trapa	#__NR_exit
-	rts
-	nop
-.end

src/libc/stdlib/target/vhex-sh/free.S

@@ -1,21 +0,0 @@
-#include <bits/asm/unistd_32.h>
-.text
-.global	_free
-.type	_free, @function
-
-
-.align 2
-/*
-** extern void free(void *ptr)
-** Custom syscall which free a block allocated by `malloc', `realloc' or `calloc'.
-**
-** @note:
-** The MMU is used by Casio so we cannot implement brk or skr for technical
-** reason (non-continius heap, no shared page, ...), so all memory management
-** is performed by the Vhex kernel.
-*/
-_free:
-	trapa	#__NR_proc_heap_free
-	rts
-	nop
-.end

src/libc/stdlib/target/vhex-sh/free.c

@@ -0,0 +1,8 @@
+#include <stdlib.h>
+
+extern void kfree(void *ptr);
+
+void free(void *ptr)
+{
+	return kfree(ptr);
+}

src/libc/stdlib/target/vhex-sh/malloc.S

@@ -1,21 +0,0 @@
-#include <bits/asm/unistd_32.h>
-.text
-.global	_malloc
-.type	_malloc, @function
-
-
-.align 2
-/*
-** extern void *malloc(size_t size);
-** Allocate SIZE bytes of memory.
-**
-** @note:
-** The MMU is used by Casio so we cannot implement brk or skr for technical
-** reason (non-continius heap, no shared page, ...), so all memory management
-** is performed by the Vhex kernel.
-*/
-_malloc:
-	trapa	#__NR_proc_heap_alloc
-	rts
-	nop
-.end

src/libc/stdlib/target/vhex-sh/malloc.c

@@ -0,0 +1,12 @@
+#include <stdlib.h>
+#include <errno.h>
+
+extern void *kmalloc(size_t size, char const *arena_name);
+
+void *malloc(size_t size)
+{
+	void *ptr = kmalloc(size, NULL);
+	if(ptr == NULL)
+		errno = ENOMEM;
+	return ptr;
+}

src/libc/stdlib/target/vhex-sh/realloc.S

@@ -1,41 +0,0 @@
-#include <bits/asm/unistd_32.h>
-.text
-.global	_realloc
-.type	_realloc, @function
-
-
-.align 2
-/*
-** extern void *realloc(void ptr, size_t size)
-**
-** @note:
-** The MMU is used by Casio so we cannot implement brk or skr for technical
-** reason (non-continius heap, no shared page, ...), so all memory management
-** is performed by the Vhex kernel.
-*/
-_realloc:
-	! Check if the PTR is NULL
-	! In this case, realloc() work like malloc(), so lets call it
-	tst 	r4, r4
-	bf	check_free
-	mov 	r5, r4
-	trapa	#__NR_proc_heap_alloc
-	rts
-	nop
-
-	! Check is the size is NULL
-	! In this case, realloc() work like free(), so lets call it
-	! then return NULL pointer
-check_free:
-	tst 	r5, r5
-	bf	call_realloc
-	trapa	#__NR_proc_heap_free
-	rts
-	xor	r0, r0
-
-	! Call realloc
-call_realloc:
-	trapa	#__NR_proc_heap_realloc
-	rts
-	nop
-.end

src/libc/stdlib/target/vhex-sh/realloc.c

@@ -0,0 +1,8 @@
+#include <stdlib.h>
+
+extern void *krealloc(void *ptr, size_t size);
+
+void *realloc(void *ptr, size_t size)
+{
+	return krealloc(ptr, size);
+}

vxsdk.toml

@@ -1,6 +1,6 @@
-[package]
+[project]
 name    = 'fxlibc'
-version = '1.3.0'
+version = '1.4.1'
 type    = 'app'
 
 [build]