Added __printf() attributes to printf-like functions

kernel/include/kernel.h

@@ -66,7 +66,7 @@
 extern uint8_t console_loglevel;
 
 // TODO: Add a ring buffer for the logs
-int printk(const char* fmt, ...);
+int printk(const char* fmt, ...) __printf(1, 2);
 int vprintk(const char* fmt, va_list ap);
 
 #define pr_emerg(fmt, ...)	printk(KERN_EMERG fmt, ##__VA_ARGS__)
@@ -80,7 +80,7 @@ int vprintk(const char* fmt, va_list ap);
 
 #define PANIC_MSG_BUFSZ	1024
 
-void panic(const char* fmt, ...) __noreturn __cold;
+void panic(const char* fmt, ...) __noreturn __cold __printf(1, 2);
 void vpanic(const char* fmt, va_list ap)__noreturn __cold;
 
 extern uintptr_t __kernel_start, __kernel_text_start, __kernel_rodata_start, __kernel_data_start;

kernel/include/serial.h

@@ -20,7 +20,7 @@ void serial_write(int dev, const char* buf, size_t len);
 void serial_puts(int dev, const char* s);
 void serial_cls(int dev);
 
-int debugf(const char* fmt, ...);
+int debugf(const char* fmt, ...) __printf(1, 2);
 int vdebugf(const char* fmt, va_list args);
 
 #endif

kernel/include/vsnprintf.h

@@ -3,7 +3,7 @@
 
 #include <kernel.h>
 
-int snprintf(char *buf, size_t n, const char *fmt, ...);
+int snprintf(char *buf, size_t n, const char *fmt, ...) __printf(3, 4);
 int vsnprintf(char* buf, size_t n, const char* fmt, va_list ap);
 
 #endif

kernel/src/kmain.c

@@ -8,8 +8,6 @@
 #include <isr.h>
 #include <pmm.h>
 
-void a(void) { *(char*)(1234) = 0; } 
-
 __noreturn
 void _start(void) {
 	int err = 0;
@@ -37,8 +35,6 @@ void _start(void) {
 	// The most important function in the world.
 	splash();
 
-	a();
-
 	// Patiently wait for things to do :)
 	while (1);
 };

kernel/src/paging.c

@@ -11,8 +11,6 @@
 // VIRTUAL address of the kernels PML4
 uint64_t* pag_kernel_pml4 = NULL;
 
-// abcabcaaabcaab
-
 int pag_init(void) {
 	pag_kernel_pml4 = TO_VIRT(pmm_alloc());
 	if (IS_ERR(pag_kernel_pml4)) return PTR_ERR(pag_kernel_pml4);
@@ -43,8 +41,8 @@ int pag_init(void) {
 		case LIMINE_MEMMAP_RESERVED_MAPPED: flags = 0; break;
 		default: 
 			pr_warning(
-				"[pag] %p - %p: Unknown memmap type %d. Will remain unmapped.\n",
+				"[pag] %p - %p: Unknown memmap type %lu. Will remain unmapped.\n",
-				entry->base, entry->base + entry->length, entry->type
+				(void*)entry->base, (void*)entry->base + entry->length, entry->type
 			      );
 			continue;
 		}

kernel/src/panic.c

@@ -18,7 +18,7 @@ void panic_call_trace(void) {
 		// TODO: Parse ELF and print function names
 		char* fname = "???";
 
-		pr_emerg("  [<%p>] %s+0x%x\n", retaddr, fname, offset);
+		pr_emerg("  [<%p>] %s+0x%lx\n", (void*)retaddr, fname, offset);
 
 		rbp = (uintptr_t*)*rbp;
 	}
@@ -45,7 +45,7 @@ void vpanic(const char *fmt, va_list ap) {
 
 	pr_emerg("--- [ Kernel panic: %s ] ---\n\n", buf);	
 
-	pr_emerg("%d / %d pages free.\n\n", pmm_free_pages, pmm_total_pages);
+	pr_emerg("%lu / %lu pages free.\n\n", pmm_free_pages, pmm_total_pages);
 	panic_call_trace();
 
 	pr_emerg("\n--- [ End kernel panic: %s ] ---\n", buf);

kernel/src/pmm.c

@@ -16,8 +16,8 @@ int pmm_init(void) {
 		struct limine_memmap_entry* entry = bootloader.mm_entries[i];
 		
 		pr_info(
-			"\t%p - %p (%d bytes), type %d\n",
+			"\t%p - %p (%lu bytes), type %lu\n",
-			entry->base, entry->base + entry->length, entry->length, entry->type
+			(void*)entry->base, (void*)entry->base + entry->length, entry->length, entry->type
 		);
 
 		if (entry->type != LIMINE_MEMMAP_USABLE) continue;
@@ -25,7 +25,7 @@ int pmm_init(void) {
 		// Limine spec says that it'll be aligned, but just as a sanity check
 		if (entry->base % PAGE_SIZE != 0) {
 			size_t diff = PAGE_SIZE - (entry->base % PAGE_SIZE);
-			pr_info("\t Not 4 kiB aligned, shifting %p -> %p (%d bytes).\n", entry->base, entry->base + diff, diff);
+			pr_info("\t Not 4 kiB aligned, shifting %p -> %p (%lu bytes).\n", (void*)entry->base, (void*)entry->base + diff, diff);
 			entry->base += diff;
 			entry->length -= diff;
 		}
@@ -38,7 +38,7 @@ int pmm_init(void) {
 		}
 	}
 
-	pr_info("[pmm] %d free pages.\n", pmm_total_pages);
+	pr_info("[pmm] %lu free pages.\n", pmm_total_pages);
 	if (pmm_total_pages == 0) return -ENOMEM;
 	pmm_free_pages = pmm_total_pages;