compiled newlib, need to hook up the system calls

kernel/kmain.c

@@ -1,8 +1,8 @@
 #include "multiboot.h"
 #include "interrupts.h"
-#include "elf.h"
 #include "gdt.h"
 #include "scheduler.h"
+#include "common.h"
 
 #include <lib/print.h>
 #include <lib/stream.h>
@@ -20,21 +20,22 @@
 #include <stddef.h>
 #include <stdint.h>
 
-extern void enable_interrupts();
-extern void disable_interrupts();
-extern uint32_t fetch_cr3();
-
 extern char __kernel_start;
 extern char __kernel_end;
 
-void kernel_test_task() {
-  while (1) {
-    kprintf("task sleeping...\n");
-    sleep(10000000);
+void first_task() {
+  kprintf("task started\n");
+  int i = 5;
+  while (i--) {
+    sleep(1000);
+    kprintf("task awake [%d]\n", i);
   }
+  kprintf("exiting\n");
+  exit();
 }
 
 void kmain(uint32_t magic, multiboot_info* mbi)  {
+  disable_interrupts();
   if (!(mbi->flags & (1 << 6))) {
     return;
   } 
@@ -54,9 +55,14 @@ void kmain(uint32_t magic, multiboot_info* mbi)  {
 
   kprintf("basic initializations complete\n");
 
-  disable_interrupts();
+  disable_interrupts(); // just paranoid... do it again
   init_scheduler();
   enable_interrupts();
 
-  while(1) yield();
+  create_task((uint32_t)first_task, fetch_cr3());
+
+  while(1) {
+    sleep(5000);
+    kprintf("kernel awake\n");
+  }
 }