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Add support for openat system call - this must be extended for the rest of these system calls

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13200 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
hcg 2008-11-14 07:52:54 +00:00
parent cfb59b2578
commit 9db8a8bc5d
1 changed files with 68 additions and 0 deletions
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68
toolchain/uClibc/patches/160-add_openat_and_friends.patch Normal file
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@ -0,0 +1,68 @@
Index: uClibc-0.9.29/libc/sysdeps/linux/common/openat.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ uClibc-0.9.29/libc/sysdeps/linux/common/openat.c 2008-10-27 12:59:25.000000000 +0100
@@ -0,0 +1,41 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * openat() for uClibc
+ *
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/param.h>
+
+extern __typeof(openat) __libc_openat;
+
+#define __NR___syscall_openat __NR_openat
+static inline _syscall4(int, __syscall_openat, int, fd, const char *, file,
+ int, flags, __kernel_mode_t, mode);
+
+libc_hidden_proto(__libc_openat)
+int __libc_openat(int fd, const char *file, int oflag, ...)
+{
+ mode_t mode = 0;
+
+ if (oflag & O_CREAT) {
+ va_list arg;
+ va_start (arg, oflag);
+ mode = va_arg (arg, mode_t);
+ va_end (arg);
+ }
+
+ return __syscall_openat(fd, file, oflag, mode);
+}
+libc_hidden_def(__libc_openat)
+
+libc_hidden_proto(openat)
+weak_alias(__libc_openat,openat)
+libc_hidden_weak(openat)
Index: uClibc-0.9.29/include/fcntl.h
===================================================================
--- uClibc-0.9.29.orig/include/fcntl.h 2008-10-27 12:52:04.000000000 +0100
+++ uClibc-0.9.29/include/fcntl.h 2008-10-27 13:08:11.000000000 +0100
@@ -56,7 +56,7 @@
# define SEEK_END 2 /* Seek from end of file. */
#endif /* XPG */
-#if 0 /*def __USE_GNU*/
+#ifdef __USE_GNU
# define AT_FDCWD -100 /* Special value used to indicate
openat should use the current
working directory. */
@@ -103,7 +103,7 @@
extern int open64 (__const char *__file, int __oflag, ...) __nonnull ((1));
#endif
-#if 0 /*def __USE_GNU*/
+#ifdef __USE_GNU
/* Similar to OPEN but a relative path name is interpreted relative to
the directory for which FD is a descriptor.