Added shared/kstdlib.c:mlog and adjacent definitions

makefile

@@ -1,6 +1,7 @@
 CC := gcc
 AS := nasm
 CFLAGS:=-g -c -m32 -fno-pie -mno-sse -O3 -D __bits__=32 -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast -Wno-incompatible-pointer-types -Wno-address-of-packed-member -Wno-discarded-qualifiers -fno-stack-protector -mno-red-zone -mno-sse -mno-sse2 -ffreestanding -nostdlib -mno-mmx
+CFLAGS_MODULE:=-g -c -m32 -mno-sse -O3 -D __bits__=32 -Wno-int-to-pointer-cast -Wno-pointer-to-int-cast -Wno-incompatible-pointer-types -Wno-address-of-packed-member -Wno-discarded-qualifiers -fno-stack-protector -mno-red-zone -mno-sse -mno-sse2 -ffreestanding -nostdlib -mno-mmx
 BL_ASFLAGS := -f bin
 SRCS := $(wildcard src/kernel/*/*.c)
 OBJS := $(patsubst src/kernel/%.c, bin/kernel/%.o, $(SRCS))
@@ -21,7 +22,7 @@ bootloader:
 # kernel: $(OBJS)
 kernel:
 	nasm src/kernel/entry.s -o bin/kernel/entry.o -f elf32
-	gcc src/kmodules/disk_driver.c $(CFLAGS) -o bin/modules/disk_driver.o -m32
+	gcc src/kmodules/disk_driver.c $(CFLAGS_MODULE) -o bin/modules/disk_driver.o -m32
 	sh c_build_helper.sh
 	nasm src/kernel/arch_i386/idt.s -o bin/kernel/idt.o -felf32
 	# ld -T linker.ld bin/kernel/entry.o bin/kernel/*.o -melf_i386

src/bootloader/main.s

@@ -353,12 +353,13 @@ part_2:
         call open_file
         cmp eax, -1
         je .start32_no_fs
+        mov [fs_module_struct.size], edx
         mov eax, esi
         and edx, 0xfffffc00
         add edx, 0x1000
         add [kload_paddr], edx
         
-        mov edi, edx
+        mov edi, [kload_paddr]
         mov [fs_module_struct.ptr], edi
         call read_file
         

src/kernel/arch_i386/memory.c

@@ -36,6 +36,7 @@ int pm_init(kernel_info_t *kernel_info){
     for(uint32_t i = 0; i < mmap_count; i++){
         pm_map[i] = 0xff;
     }
+    mlog("KERNEL(MEMORY)", "   BASE  | LENGTH | TYPE\n", MLOG_PRINT);
     for(uint32_t i = 0; i < kernel_info->mmap_entry_count; i++){
         for(uint32_t j = 0; j < (mmap[i].entry_length >> 12); j++){
             if(mmap[i].entry_base + (j << 12) <= mmap[i-1].entry_base + mmap[i-1].entry_length){
@@ -54,9 +55,9 @@ int pm_init(kernel_info_t *kernel_info){
             //     printf("%d, %x, %d\n", j >> 3, pm_map[(mmap[i].entry_base >> 12 ) + (j >> 3)], mmap[i].type);
             // }
         }
-        printf("|%x|", mmap[i].entry_base);
-        printf("%x",  mmap[i].entry_length);
-        printf("|%d   |\n", mmap[i].type);
+        mlog("KERNEL(MEMORY)", " %x|%x|%d\n", MLOG_PRINT, (uint32_t)mmap[i].entry_base, (uint32_t)mmap[i].entry_length, mmap[i].type);
+        // printf("%x",  mmap[i].entry_length);
+        // printf("|%d   |\n", mmap[i].type);
     }
     for(uint32_t i = 0; i < 512; i++){
         pm_reserve(i * 4096);

src/kernel/drivers/serial.c

@@ -43,30 +43,40 @@ void debug_puts(char *string){
         outb(com_ports[0], *string++);
     }
 }
-
-void printf(char *string, ...){
+void printf(char *str, ...){
     va_list vars;
-    va_start(vars, string);
+    va_start(vars, str);
+    vprintf(str, vars);
+    va_end(vars);
+}
+
+void vprintf(char *string, va_list vars){
     while(*string){
         if(*string == '%'){
+            string++;
             int32_t num = 0;
+            char *ptr = 0;
             char numb[12];
-            switch(*(string + 1)){
+            switch(*string){
                 case 'd':
-                    string += 2;
+                    string++;
                     num = va_arg(vars, int32_t);
                     itoa(num, numb, 10);
                     debug_puts(numb);
                     continue;
                 case 'x':
                     // debug_puts(":3");
-                    string += 2;
+                    string++;
                     num = va_arg(vars, int32_t);
                     // char hnumb[12];
                     itoa(num, numb, 16);
                     strpad(numb, '0', 8);
                     debug_puts(numb);
                     continue;
+                case 's':
+                    string++;
+                    ptr = va_arg(vars, char *);
+                    printf(ptr);
             }
         }
         outb(com_ports[0], *string);

src/kernel/drivers/serial.h

@@ -1,9 +1,11 @@
 #pragma once
 #include <stdint.h>
+#include <stdarg.h>
 void init_serial();
 void serial_writeb(uint8_t port, uint8_t data);
 void serial_writereg(uint8_t port, uint8_t reg, uint8_t data);
 uint8_t serial_readreg(uint8_t port, uint8_t reg);
 uint8_t serial_readb(uint8_t port);
 void debug_puts(char *string);
-void printf(char *string, ...);
+void printf(char *string, ...);
+void vprintf(char *string, va_list vars);

src/kernel/kmain.c

@@ -10,6 +10,10 @@
 void pid0(){
     for(;;);
 }
+void sysinit(){
+    
+    for(;;);
+}
 extern void kmain(kernel_info_t *kernel_info){
     init_serial();
     pm_init(kernel_info);
@@ -19,12 +23,9 @@ extern void kmain(kernel_info_t *kernel_info){
     pic_setmask(0xfe, PIC1_DATA);
     //TODO: Map and load filesystem and disk modules
     //TODO: Start Initial Process
-    
-    printf("%x\n", *(uint32_t *)kernel_info->loaded_modules->ptr);
-    printf("%x", kernel_info->loaded_modules->size);
-    
     init_scheduler();
     thread_start(pid0);
+    thread_start(sysinit);
     enable_interrupts();
     for(;;);
     return;

src/kernel/shared/kstdlib.c

@@ -0,0 +1,20 @@
+#include "kstdlib.h"
+#include <stdarg.h>
+
+char* log_info_types[] = {
+    "",
+    ":DEBUG",
+    "",
+    ":WARNING",
+    ":ERROR"
+};
+
+void mlog(char *module, char *str, uint32_t type, ...){
+    va_list vars;
+    va_start(vars, type);
+    if(!type || type > 4){
+        return;
+    }
+    printf("[ %s %s]", module, log_info_types[type]);
+    vprintf(str, vars);
+}

src/kernel/shared/kstdlib.h

@@ -1,8 +1,14 @@
 #pragma once
 // #include "memory.h"
+#include "stdint.h"
 #include "../drivers/serial.h"
 #include "interrupts.h"
 
+#define MLOG_DEBUG 1
+#define MLOG_PRINT 2
+#define MLOG_WARN 3
+#define MLOG_ERR 4
+
 typedef struct module_linked_list{
     void *ptr;
     uint32_t size;
@@ -22,6 +28,8 @@ typedef struct kernel_info{
     // uint32_t loaded_module_count;
 }__attribute__((packed)) kernel_info_t;
 
+void mlog(char *module, char *str, uint32_t type, ...);
+
 
 #define MODULE_TYPE_DISK 1
 #define MODULE_TYPE_FS 2