Updated libc

libc/src/InitArray.c

@@ -0,0 +1,21 @@
+extern void (*__preinit_array_start[])(void) __attribute__((weak));
+extern void (*__preinit_array_end[])(void) __attribute__((weak));
+extern void (*__init_array_start[])(void) __attribute__((weak));
+extern void (*__init_array_end[])(void) __attribute__((weak));
+extern void (*__fini_array_start []) (void) __attribute__((weak));
+extern void (*__fini_array_end []) (void) __attribute__((weak));
+
+extern void _init(void);
+
+void __libc_init_array(void)
+{
+    unsigned long Count = __preinit_array_end - __preinit_array_start;
+    for (unsigned long i = 0; i < Count; i++)
+        __preinit_array_start[i]();
+
+    _init();
+
+    Count = __init_array_end - __init_array_start;
+    for (unsigned long i = 0; i < Count; i++)
+        __init_array_start[i]();
+}

libc/src/Makefile

@@ -8,13 +8,14 @@ OBJECT_NAME=lib$(NAME).a
 OUTPUT_DIR=../../out/system/lib/
 
 CC = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)gcc
+AS = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)as
 AR = ../../../$(COMPILER_PATH)/$(COMPILER_ARCH)ar
 NASM = /usr/bin/nasm
 
 C_SOURCES = $(shell find ./ -type f -name '*.c')
-S_SOURCES = $(shell find ./ -type f -name '*.s')
+S_SOURCES = $(shell find ./ -type f -name '*.S')
 ASM_SOURCES = $(shell find ./ -type f -name '*.asm')
-OBJ = ${C_SOURCES:.c=.o} ${ASM_SOURCES:.asm=.o} ${S_SOURCES:.s=.o}
+OBJ = ${C_SOURCES:.c=.o} ${ASM_SOURCES:.asm=.o} ${S_SOURCES:.S=.o}
 
 INCLUDE_DIR = ../include
 
@@ -24,7 +25,7 @@ else ifeq ($(OSARCH), i686)
 ASM_ARCH := elf32
 endif
 
-CFLAGS := -fPIC -I$(INCLUDE_DIR)
+CFLAGS := -fPIC -mno-red-zone -I$(INCLUDE_DIR)
 
 build: $(OBJECT_NAME)
 
@@ -37,6 +38,9 @@ $(OBJECT_NAME): $(OBJ)
 %.o: %.cpp $(HEADERS) $(HEADERS2)
 	$(CC) $(CFLAGS) -std=c++20 -c $< -o $@
 
+%.o: %.S
+	$(AS) -c $< -o $@
+
 %.o: %.asm
 	$(NASM) $< -f $(ASM_ARCH) -o $@
 

libc/src/Runtime.c

@@ -0,0 +1,18 @@
+
+extern void __libc_init_array();
+
+void __libc_init()
+{
+    __libc_init_array();
+}
+
+void _exit(int Code)
+{
+    __asm__ __volatile__("syscall"
+                         :
+                         : "a"(0), "D"(Code)
+                         : "rcx", "r11", "memory");
+
+    while (1)
+        __asm__ __volatile__("hlt");
+}