The following commit has been merged into the core/rcu branch of tip:
Commit-ID: c261145abd2461f921ac44ad70c28778dda710f4
Gitweb:
https://git.kernel.org/tip/c261145abd2461f921ac44ad70c28778dda710f4
Author: Willy Tarreau <w...@1wt.eu>
AuthorDate: Thu, 21 Jan 2021 08:20:23 +01:00
Committer: Paul E. McKenney <paul...@kernel.org>
CommitterDate: Thu, 21 Jan 2021 10:06:44 -08:00
tools/nolibc: Add the definition for dup()
This commit adds the dup() function, which was omitted when sys_dup()
was defined. This is a port of nolibc's upstream commit 47cc42a79c92
to the Linux kernel.
Fixes: 66b6f755ad45 ("rcutorture: Import a copy of nolibc")
Tested-by: Valentin Schneider <valentin.schnei...@arm.com>
Tested-by: Mark Rutland <mark.rutl...@arm.com> [arm64]
Signed-off-by: Willy Tarreau <w...@1wt.eu>
Signed-off-by: Paul E. McKenney <paul...@kernel.org>
---
tools/include/nolibc/nolibc.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index e61d36c..3115c64 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -1853,6 +1853,18 @@ int close(int fd)
}
static __attribute__((unused))
+int dup(int fd)
+{
+ int ret = sys_dup(fd);
+
+ if (ret < 0) {
+ SET_ERRNO(-ret);
+ ret = -1;
+ }
+ return ret;
+}
+
+static __attribute__((unused))
int dup2(int old, int new)
{
int ret = sys_dup2(old, new);
