proc_quit () and proc_test () syscalls

kernel/syscall/syscall.c

@@ -0,0 +1,34 @@
+#include <aux/compiler.h>
+#include <libk/std.h>
+#include <proc/proc.h>
+#include <sys/debug.h>
+#include <syscall/defs.h>
+#include <syscall/syscall.h>
+
+#define DEFINE_SYSCALL(name)                                                                       \
+  int name (struct proc* proc, uintptr_t UNUSED a1, uintptr_t UNUSED a2, uintptr_t UNUSED a3,      \
+            uintptr_t UNUSED a4, uintptr_t UNUSED a5, uintptr_t UNUSED a6)
+
+DEFINE_SYSCALL (sys_proc_quit) {
+  proc_kill (proc);
+  proc_sched ();
+  return SR_OK;
+}
+
+DEFINE_SYSCALL (sys_proc_test) {
+  DEBUG ("test syscall message!\n");
+  return SR_OK;
+}
+
+static syscall_handler_func_t handler_table[] = {
+    [SYS_PROC_QUIT] = &sys_proc_quit,
+    [SYS_PROC_TEST] = &sys_proc_test,
+};
+
+syscall_handler_func_t syscall_find_handler (int syscall_num) {
+  if (!(syscall_num >= 0 && syscall_num < (sizeof (handler_table) / sizeof (handler_table[0])))) {
+    return NULL;
+  }
+
+  return handler_table[syscall_num];
+}