52ae86bcb6
This commit adds two patches to the libv4l package, the first one fixes the __off_t usage and the second one fixes locale-related function usage. Those two patches allow libv4l to build fine against musl, so we remove the dependency of glibc || uclibc. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
109 lines
3.6 KiB
Diff
109 lines
3.6 KiB
Diff
From 87369a8d190a182ee087cec5164e4c9586b0d80e Mon Sep 17 00:00:00 2001
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Date: Wed, 28 Oct 2015 09:27:47 +0100
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Subject: [PATCH] libv4lsyscall-priv.h: Use off_t instead of __off_t
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__off_t is a kernel internal symbol, which happens to be user-visible
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with glibc, but not necessarily with other C libraries such as
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musl. In v4l-utils code, it's mainly used for the mmap() prototype,
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but the mmap() manpage really uses off_t, not __off_t.
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Switching from __off_t to off_t allows the code to build properly with
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musl.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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---
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lib/libv4l1/v4l1compat.c | 3 +--
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lib/libv4l2/v4l2convert.c | 5 ++---
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lib/libv4lconvert/libv4lsyscall-priv.h | 11 +++--------
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3 files changed, 6 insertions(+), 13 deletions(-)
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diff --git a/lib/libv4l1/v4l1compat.c b/lib/libv4l1/v4l1compat.c
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index 97e8c4e..e5c9e56 100644
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--- a/lib/libv4l1/v4l1compat.c
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+++ b/lib/libv4l1/v4l1compat.c
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@@ -29,7 +29,6 @@
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#include <stdarg.h>
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#include <fcntl.h>
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#include <libv4l1.h>
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-#include "../libv4lconvert/libv4lsyscall-priv.h" /* for __off_t */
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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@@ -119,7 +118,7 @@ LIBV4L_PUBLIC ssize_t read(int fd, void *buffer, size_t n)
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}
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LIBV4L_PUBLIC void *mmap(void *start, size_t length, int prot, int flags, int fd,
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- __off_t offset)
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+ off_t offset)
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{
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return v4l1_mmap(start, length, prot, flags, fd, offset);
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}
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diff --git a/lib/libv4l2/v4l2convert.c b/lib/libv4l2/v4l2convert.c
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index a6dc30e..7b7e253 100644
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--- a/lib/libv4l2/v4l2convert.c
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+++ b/lib/libv4l2/v4l2convert.c
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@@ -39,7 +39,6 @@
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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-#include "../libv4lconvert/libv4lsyscall-priv.h"
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#include <linux/videodev2.h>
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#include <libv4l2.h>
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@@ -151,14 +150,14 @@ LIBV4L_PUBLIC ssize_t read(int fd, void *buffer, size_t n)
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}
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LIBV4L_PUBLIC void *mmap(void *start, size_t length, int prot, int flags, int fd,
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- __off_t offset)
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+ off_t offset)
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{
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return v4l2_mmap(start, length, prot, flags, fd, offset);
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}
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#if defined(linux) && defined(__GLIBC__)
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LIBV4L_PUBLIC void *mmap64(void *start, size_t length, int prot, int flags, int fd,
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- __off64_t offset)
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+ off64_t offset)
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{
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return v4l2_mmap(start, length, prot, flags, fd, offset);
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}
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diff --git a/lib/libv4lconvert/libv4lsyscall-priv.h b/lib/libv4lconvert/libv4lsyscall-priv.h
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index f548fb2..f87eff4 100644
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--- a/lib/libv4lconvert/libv4lsyscall-priv.h
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+++ b/lib/libv4lconvert/libv4lsyscall-priv.h
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@@ -59,11 +59,6 @@
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#define _IOC_SIZE(cmd) IOCPARM_LEN(cmd)
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#define MAP_ANONYMOUS MAP_ANON
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#define MMAP2_PAGE_SHIFT 0
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-typedef off_t __off_t;
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-#endif
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-
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-#if defined(ANDROID)
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-typedef off_t __off_t;
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#endif
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#undef SYS_OPEN
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@@ -95,15 +90,15 @@ typedef off_t __off_t;
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#if defined(__FreeBSD__)
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#define SYS_MMAP(addr, len, prot, flags, fd, off) \
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__syscall(SYS_mmap, (void *)(addr), (size_t)(len), \
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- (int)(prot), (int)(flags), (int)(fd), (__off_t)(off))
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+ (int)(prot), (int)(flags), (int)(fd), (off_t)(off))
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#elif defined(__FreeBSD_kernel__)
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#define SYS_MMAP(addr, len, prot, flags, fd, off) \
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syscall(SYS_mmap, (void *)(addr), (size_t)(len), \
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- (int)(prot), (int)(flags), (int)(fd), (__off_t)(off))
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+ (int)(prot), (int)(flags), (int)(fd), (off_t)(off))
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#else
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#define SYS_MMAP(addr, len, prot, flags, fd, off) \
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syscall(SYS_mmap2, (void *)(addr), (size_t)(len), \
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- (int)(prot), (int)(flags), (int)(fd), (__off_t)((off) >> MMAP2_PAGE_SHIFT))
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+ (int)(prot), (int)(flags), (int)(fd), (off_t)((off) >> MMAP2_PAGE_SHIFT))
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#endif
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#define SYS_MUNMAP(addr, len) \
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--
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2.6.2
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