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| author | Willy Tarreau <w@1wt.eu> | 2021-01-21 08:20:23 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-01-21 10:06:44 -0800 |
| commit | c261145abd2461f921ac44ad70c28778dda710f4 (patch) | |
| tree | 1c55cef99934edb586240e64749e0982017d996c /tools/include | |
| parent | 7c53f6b671f4aba70ff15e1b05148b10d58c2837 (diff) | |
| download | linux-c261145abd2461f921ac44ad70c28778dda710f4.tar.bz2 | |
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.schneider@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com> [arm64]
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/nolibc/nolibc.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h index e61d36cd4e50..3115c6467d10 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); |