From f3c8918b13a5226f53e7870d60436f812e5d9015 Mon Sep 17 00:00:00 2001
From: Richard Qin <richard.qin.x@gmail.com>
Date: Sun, 28 Dec 2025 01:48:50 +0800
Subject: feat(user): add user-space build system and init process to test
 fork/wait

---
 src/user/usys.S | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 src/user/usys.S

(limited to 'src/user/usys.S')

diff --git a/src/user/usys.S b/src/user/usys.S
new file mode 100644
index 0000000..e805d82
--- /dev/null
+++ b/src/user/usys.S
@@ -0,0 +1,31 @@
+#include "kernel/syscall.h"
+
+#define SYSCALL(name) \
+    .global name; \
+    name: \
+        li a7, SYS_ ## name; \
+        ecall; \
+        ret
+
+SYSCALL(fork)
+SYSCALL(exit)
+SYSCALL(wait)
+SYSCALL(pipe)
+SYSCALL(read)
+SYSCALL(write)
+SYSCALL(close)
+SYSCALL(kill)
+SYSCALL(exec)
+SYSCALL(open)
+SYSCALL(mknod)
+SYSCALL(unlink)
+SYSCALL(fstat)
+SYSCALL(link)
+SYSCALL(mkdir)
+SYSCALL(chdir)
+SYSCALL(dup)
+SYSCALL(getpid)
+SYSCALL(sbrk)
+SYSCALL(sleep)
+SYSCALL(uptime)
+SYSCALL(putc)
\ No newline at end of file
-- 
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