From 41f63f71cc905bcf0cfc6778df98bc5efbe71c5a Mon Sep 17 00:00:00 2001
From: quanzhao <quanzhao@rt-thread.com>
Date: Wed, 23 Dec 2020 16:44:24 +0800
Subject: [PATCH] Add syscall 'sys_pipe()', which returns -1 for now.

---
 components/lwp/lwp_syscall.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/components/lwp/lwp_syscall.c b/components/lwp/lwp_syscall.c
index a392698367..f11610f67b 100644
--- a/components/lwp/lwp_syscall.c
+++ b/components/lwp/lwp_syscall.c
@@ -1747,6 +1747,12 @@ int sys_access(const char *filename, int mode)
     return (ret >= 0)? 0: ret;
 }
 
+int sys_pipe(int fd[2])
+{
+    /* not implemented */
+    return -1;
+}
+
 const static void* func_table[] =
 {
     (void*)sys_exit,            /* 01 */
@@ -1890,6 +1896,7 @@ const static void* func_table[] =
     (void *)sys_set_thread_area,
     (void *)sys_set_tid_address,
     (void *)sys_access,
+    (void *)sys_pipe,
 };
 
 const void *lwp_get_sys_api(rt_uint32_t number)
-- 
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