changed main to a signal demo

Makefile

@@ -33,7 +33,9 @@ $(NAME): $(OBJ)
 run: $(NAME)
 	qemu-system-i386 -kernel build/$(NAME).bin -vga std
 
-iso: $(NAME) mkdir -p isodir/boot/grub cp build/$(NAME).bin isodir/boot/$(NAME).bin
+iso: $(NAME)
+	mkdir -p isodir/boot/grub
+	cp build/$(NAME).bin isodir/boot/$(NAME).bin
 	cp config/grub.cfg isodir/boot/grub/grub.cfg
 	grub-mkrescue -o build/$(NAME).iso --compress=xz --locales=en@quot --themes= isodir
 	rm -rf isodir

src/kernel.c

@@ -30,28 +30,6 @@
 #error "This tutorial needs to be compiled with a ix86-elf compiler"
 #endif
 
-static void uwu(void)
-{
-	kprintf("uwu\n");
-}
-
-static void owo(void)
-{
-	while (true)
-		kprintf("owoooooooooooooooooooooooooooooooooooo\n");
-}
-
-static void awa(void)
-{
-	uint32_t pid = fork();
-	PRINT_INT(pid);
-	if (pid < 0)
-		kprintf("awais");
-	kprintf("awaille\n");
-	if (pid)
-		wait();
-}
-
 static void bozo(int int_code)
 {
 	kprintf("apagnan code\n");
@@ -64,26 +42,7 @@ void kernel_main(multiboot_info_t *mbd, uint32_t magic)
 	init_idt();
 	init_memory(mbd, magic);
 	load_drivers();
-	// kprintf(KERN_ALERT
-	//         "I see no way to confuse an array of 256 seg:off pairs with a
-	//         " "complex 8*unknown quantity -byte descriptor table. -- Troy
-	//         " "Martin 03:50, 22 March 2009 (UTC)\n");
 	create_kernel_task();
-	vmalloc(1231231);
-	// uint32_t nb_alloc = 0;
-	// while (kmalloc(10))
-	// 	nb_alloc++;
-	// kprintf("%d\n", nb_alloc);
-	for (uint8_t i = 0; i < 10; i++)
-		vmalloc(32);
-	char *str = kmalloc(20);
-	show_kalloc_mem();
-	strcpy(str, "test\n");
-	kprintf("%s", str);
-	// exec_fn(owo);
-	// exec_fn(owo);
-	// exec_fn(owo);
-	// exec_fn(owo);
 	kill(0, 4);
 	for (size_t i = 0; i < 10000; i++)
 		free_pages(alloc_pages(1, NULL), 1);

src/kpanic.c

@@ -9,6 +9,7 @@
 
 extern uint32_t page_table1[1024];
 extern const char *faults[];
+void clear_registers(void);
 
 __attribute__((noreturn)) void kpanic(const char *format, ...)
 {
@@ -16,6 +17,7 @@ __attribute__((noreturn)) void kpanic(const char *format, ...)
 
 	/* terminal_set_bg_color(VGA_COLOR_BLUE); */
 	/* terminal_clear(); */
+	kprintf("kpanic: ");
 	va_start(va, format);
 	kvprintf(format, &va);
 	va_end(va);
@@ -30,7 +32,5 @@ __attribute__((noreturn)) void kpanic(const char *format, ...)
 	/* print_stack(); */
 	/* kprintf("\n\n"); */
 	/* kprintf("PRESS SPACE TO REBOOT"); */
-	while (terminal_getkey().scan_code != KEY_SPACE)
-		;
-	reboot();
+	__asm__ __volatile__("jmp panic");
 }

src/panic.s

@@ -0,0 +1,19 @@
+.intel_syntax noprefix
+
+.section .text
+	.global panic
+
+panic:
+	xor eax, eax
+	xor ebx, ebx
+	xor ecx, ecx
+	xor edx, edx
+	xor esp, esp
+	xor ebp, ebp
+	xor esi, esi
+	xor edi, edi
+
+	cli
+loop:
+	hlt
+	jmp loop