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authorWilly Tarreau <w@1wt.eu>2022-02-07 19:23:52 +0300
committerPaul E. McKenney <paulmck@kernel.org>2022-04-21 03:05:45 +0300
commitcec1505321020287c3acc5a63dd75859ebf5ad0d (patch)
treeae893fae7d9acf05c6510a8a272d6539be32d29d /tools/include/nolibc
parent99cb50ab94b2aa11c756c4ba14ef09197a7ebe7b (diff)
downloadlinux-cec1505321020287c3acc5a63dd75859ebf5ad0d.tar.xz
tools/nolibc/time: create time.h with time()
The time() syscall is used by a few simple applications, and is trivial to implement based on gettimeofday() that we already have. Let's create the file to ease porting and provide the function. It never returns any error, though it may segfault in case of invalid pointer, like other implementations relying on gettimeofday(). Signed-off-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'tools/include/nolibc')
-rw-r--r--tools/include/nolibc/nolibc.h1
-rw-r--r--tools/include/nolibc/time.h28
2 files changed, 29 insertions, 0 deletions
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index 0f375e901a36..561dcdb83cee 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -92,6 +92,7 @@
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
+#include "time.h"
#include "unistd.h"
/* Used by programs to avoid std includes */
diff --git a/tools/include/nolibc/time.h b/tools/include/nolibc/time.h
new file mode 100644
index 000000000000..d18b7661fdd7
--- /dev/null
+++ b/tools/include/nolibc/time.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * time function definitions for NOLIBC
+ * Copyright (C) 2017-2022 Willy Tarreau <w@1wt.eu>
+ */
+
+#ifndef _NOLIBC_TIME_H
+#define _NOLIBC_TIME_H
+
+#include "std.h"
+#include "arch.h"
+#include "types.h"
+#include "sys.h"
+
+static __attribute__((unused))
+time_t time(time_t *tptr)
+{
+ struct timeval tv;
+
+ /* note, cannot fail here */
+ sys_gettimeofday(&tv, NULL);
+
+ if (tptr)
+ *tptr = tv.tv_sec;
+ return tv.tv_sec;
+}
+
+#endif /* _NOLIBC_TIME_H */