From 283d5ab4c964ab525e45fcade06d6fd7e977c43e Mon Sep 17 00:00:00 2001
From: Mole Shang <135e2@135e2.dev>
Date: Thu, 18 Jan 2024 17:35:27 +0800
Subject: lab syscall: finish

Conflicts:
	kernel/syscall.c
	kernel/syscall.h
	user/user.h
	user/usys.pl
---
 kernel/sysproc.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'kernel/sysproc.c')

diff --git a/kernel/sysproc.c b/kernel/sysproc.c
index 88644b2..4cf0697 100644
--- a/kernel/sysproc.c
+++ b/kernel/sysproc.c
@@ -100,3 +100,21 @@ sys_uptime(void)
   release(&tickslock);
   return xticks;
 }
+
+uint64
+sys_trace(void)
+{
+  argint(0, &myproc()->trace_mask);
+
+  return -(myproc()->trace_mask <= 1);
+}
+
+uint64
+sys_sysinfo(void)
+{
+  uint64 si; // user pointer to struct sysinfo
+
+  argaddr(0, &si);
+  return sys_info(si);
+}
+
-- 
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