BugFix; New process should start with interrupts enabled

Author: scopeInfinity

src/kernel/core.c

@@ -55,6 +55,6 @@ void kernel_core_entry() {
     int init_pid = spawnl(INIT_APPNAME, INIT_APPNAME, NULL);
     print_log("init process got created: %d", init_pid);
 
-    // interrupt_pit_enable();
+    interrupt_pit_enable();
     while (1);
 }

src/kernel/interrupts/timer.asm

@@ -103,7 +103,10 @@ global create_infant_process_irq0_stack
 
         ; kernel offset
         xor ecx, ecx
+
+        xor ecx, 1<<9       ; enable interrupt
         mov [eax-0], ecx    ; user: eflag
+
         ; do_not_care: next two cs, ip
         ; CS and IP doesn't matter, as they are controlled by _int_irq0_end
 

src/usr/lib/process.c

@@ -40,7 +40,6 @@ int spawnv(char *file_path, char *argv[]) {
 int _spawnv_syscall(char *file_path, char *argv[]) {
     // kernel expects argv size must be PROCESS_MAX_ARGC
     int pid = SYSCALL_A3(SYSCALL_PROCESS, SYSCALL_PROCESS_SUB_SPAWN_FNAME, file_path, argv);
-    if(pid>=0) yield();
     return pid;
 }