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From ac8eb4d8e1c16b907e795da123a032869c77c56f Mon Sep 17 00:00:00 2001
From: Riku Voipio <riku.voipio@linaro.org>
Date: Tue, 22 Jan 2013 12:44:48 +0200
Subject: [PATCH] libv4lsyscall-priv.h: use openat when available
New architectures such as 64-Bit arm build kernels without legacy
system calls - Such as the the no-at system calls. Thus, use
SYS_openat whenever it is available.
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Upstream-status: backport
---
lib/libv4lconvert/libv4lsyscall-priv.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/lib/libv4lconvert/libv4lsyscall-priv.h b/lib/libv4lconvert/libv4lsyscall-priv.h
index 2dac49a..cdd38bc 100644
--- a/lib/libv4lconvert/libv4lsyscall-priv.h
+++ b/lib/libv4lconvert/libv4lsyscall-priv.h
@@ -72,8 +72,13 @@ typedef off_t __off_t;
#ifndef CONFIG_SYS_WRAPPER
+#ifdef SYS_openat
+#define SYS_OPEN(file, oflag, mode) \
+ syscall(SYS_openat, AT_FDCWD, (const char *)(file), (int)(oflag), (mode_t)(mode))
+#else
#define SYS_OPEN(file, oflag, mode) \
syscall(SYS_open, (const char *)(file), (int)(oflag), (mode_t)(mode))
+#endif
#define SYS_CLOSE(fd) \
syscall(SYS_close, (int)(fd))
#define SYS_IOCTL(fd, cmd, arg) \
--
1.7.10.4
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