syscalls: add getpid syscall

2025-07-16 15:21:19 +03:00
parent 8bc7e1d523
commit aac4375b8e
1 changed files with 9 additions and 0 deletions
@@ -230,6 +230,11 @@ int sys_close(TrapFrame *tf)
    return -1;
 }

+int sys_getpid(TrapFrame *tf)
+{
+    return current->pid;
+}
+
 void handle_syscall(TrapFrame *tf)
 {
    /*
@@ -262,6 +267,10 @@ void handle_syscall(TrapFrame *tf)
        case 6://close
            tf->eax = sys_close(tf);
            break;
+        
+        case 20://getpid
+            tf->eax = sys_getpid(tf);
+            break;
        default:
            debug_log("unknown syscall: %X\n", tf->eax);
            tf->eax = -1;