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authorJakub Jelinek <jakub@redhat.com>2007-08-04 20:51:44 +0000
committerJakub Jelinek <jakub@redhat.com>2007-08-04 20:51:44 +0000
commit9452e30a05dd79850be35ba9886992f482761b1e (patch)
tree386776084a3fc4a14b2d560865dde715431d5e88 /io
parente08057b1ff24258dd7460ad81e84491f7a28b424 (diff)
downloadglibc-9452e30a05dd79850be35ba9886992f482761b1e.tar.gz
Updated to fedora-glibc-20070804T2027
Diffstat (limited to 'io')
-rw-r--r--io/Makefile2
-rw-r--r--io/bits/fcntl2.h240
-rw-r--r--io/have_o_cloexec.c24
3 files changed, 150 insertions, 116 deletions
diff --git a/io/Makefile b/io/Makefile
index da589b118a..1acda4c8b6 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -54,6 +54,8 @@ routines := \
sendfile sendfile64 \
utimensat futimens
+aux := have_o_cloexec
+
# These routines will be omitted from the libc shared object.
# Instead the static object files will be included in a special archive
# linked against when the shared library will be used.
diff --git a/io/bits/fcntl2.h b/io/bits/fcntl2.h
index a1b03f6194..5b9fcd5e71 100644
--- a/io/bits/fcntl2.h
+++ b/io/bits/fcntl2.h
@@ -31,70 +31,74 @@ extern int __REDIRECT (__open_2, (__const char *__file, int __oflag),
#endif
#define open(fname, flags, ...) \
- ({ int ___r; \
- /* If the compiler complains about an invalid type, excess elements, etc \
- in the initialization this means a parameter of the wrong type has \
- been passed to open. */ \
- int ___arr[] = { __VA_ARGS__ }; \
- if (__builtin_constant_p (flags) && ((flags) & O_CREAT) != 0) \
- { \
- /* If the compiler complains about the size of this array type the \
- mode parameter is missing since O_CREAT has been used. */ \
- typedef int __open_missing_mode[((flags) & O_CREAT) != 0 \
- ? ((long int) sizeof (___arr) \
- - (long int) sizeof (int)) : 1]; \
- } \
- if (sizeof (___arr) == 0) \
- { \
- if (__builtin_constant_p (flags) && ((flags) & O_CREAT) == 0) \
- ___r = open (fname, flags); \
- else \
- ___r = __open_2 (fname, flags); \
- } \
- else \
- { \
- /* If the compiler complains about the size of this array type too \
- many parameters have been passed to open. */ \
- typedef int __open_too_many_args[-(sizeof (___arr) > sizeof (int))]; \
- ___r = open (fname, flags, ___arr[0]); \
- } \
- ___r; \
- })
+ (__extension__ \
+ ({ int ___r; \
+ /* If the compiler complains about an invalid type, excess elements, \
+ etc. in the initialization this means a parameter of the wrong type \
+ has been passed to open. */ \
+ int ___arr[] = { __VA_ARGS__ }; \
+ if (__builtin_constant_p (flags) && ((flags) & O_CREAT) != 0) \
+ { \
+ /* If the compiler complains about the size of this array type the \
+ mode parameter is missing since O_CREAT has been used. */ \
+ typedef int __open_missing_mode[((flags) & O_CREAT) != 0 \
+ ? ((long int) sizeof (___arr) \
+ - (long int) sizeof (int)) : 1];\
+ } \
+ if (sizeof (___arr) == 0) \
+ { \
+ if (__builtin_constant_p (flags) && ((flags) & O_CREAT) == 0) \
+ ___r = open (fname, flags); \
+ else \
+ ___r = __open_2 (fname, flags); \
+ } \
+ else \
+ { \
+ /* If the compiler complains about the size of this array type too \
+ many parameters have been passed to open. */ \
+ typedef int __open_too_many_args[-(sizeof (___arr) \
+ > sizeof (int))]; \
+ ___r = open (fname, flags, ___arr[0]); \
+ } \
+ ___r; \
+ }))
#ifdef __USE_LARGEFILE64
extern int __open64_2 (__const char *__path, int __oflag) __nonnull ((1));
# define open64(fname, flags, ...) \
- ({ int ___r; \
- /* If the compiler complains about an invalid type, excess elements, etc \
- in the initialization this means a parameter of the wrong type has \
- been passed to open64. */ \
- int ___arr[] = { __VA_ARGS__ }; \
- if (__builtin_constant_p (flags) && ((flags) & O_CREAT) != 0) \
- { \
- /* If the compiler complains about the size of this array type the \
- mode parameter is missing since O_CREAT has been used. */ \
- typedef int __open_missing_mode[((flags) & O_CREAT) != 0 \
- ? ((long int) sizeof (___arr) \
- - (long int) sizeof (int)) : 1]; \
- } \
- if (sizeof (___arr) == 0) \
- { \
- if (__builtin_constant_p (flags) && ((flags) & O_CREAT) == 0) \
- ___r = open64 (fname, flags); \
- else \
- ___r = __open64_2 (fname, flags); \
- } \
- else \
- { \
- /* If the compiler complains about the size of this array type too \
- many parameters have been passed to open64. */ \
- typedef int __open_too_many_args[-(sizeof (___arr) > sizeof (int))]; \
- ___r = open64 (fname, flags, ___arr[0]); \
- } \
- ___r; \
- })
+ (__extension__ \
+ ({ int ___r; \
+ /* If the compiler complains about an invalid type, excess elements, \
+ etc. in the initialization this means a parameter of the wrong type \
+ has been passed to open64. */ \
+ int ___arr[] = { __VA_ARGS__ }; \
+ if (__builtin_constant_p (flags) && ((flags) & O_CREAT) != 0) \
+ { \
+ /* If the compiler complains about the size of this array type the \
+ mode parameter is missing since O_CREAT has been used. */ \
+ typedef int __open_missing_mode[((flags) & O_CREAT) != 0 \
+ ? ((long int) sizeof (___arr) \
+ - (long int) sizeof (int)) : 1];\
+ } \
+ if (sizeof (___arr) == 0) \
+ { \
+ if (__builtin_constant_p (flags) && ((flags) & O_CREAT) == 0) \
+ ___r = open64 (fname, flags); \
+ else \
+ ___r = __open64_2 (fname, flags); \
+ } \
+ else \
+ { \
+ /* If the compiler complains about the size of this array type too \
+ many parameters have been passed to open64. */ \
+ typedef int __open_too_many_args[-(sizeof (___arr) \
+ > sizeof (int))]; \
+ ___r = open64 (fname, flags, ___arr[0]); \
+ } \
+ ___r; \
+ }))
#endif
#ifdef __USE_ATFILE
@@ -108,35 +112,37 @@ extern int __REDIRECT (__openat_2, (int __fd, __const char *__file,
# endif
# define openat(fd, fname, flags, ...) \
- ({ int ___r; \
- /* If the compiler complains about an invalid type, excess elements, etc \
- in the initialization this means a parameter of the wrong type has \
- been passed to openat. */ \
- int ___arr[] = { __VA_ARGS__ }; \
- if (__builtin_constant_p (flags) && ((flags) & O_CREAT) != 0) \
- { \
- /* If the compiler complains about the size of this array type the \
- mode parameter is missing since O_CREAT has been used. */ \
- typedef int __open_missing_mode[((flags) & O_CREAT) != 0 \
- ? ((long int) sizeof (___arr) \
- - (long int) sizeof (int)) : 1]; \
- } \
- if (sizeof (___arr) == 0) \
- { \
- if (__builtin_constant_p (flags) && ((flags) & O_CREAT) == 0) \
- ___r = openat (fd, fname, flags); \
- else \
- ___r = __openat_2 (fd, fname, flags); \
- } \
- else \
- { \
- /* If the compiler complains about the size of this array type too \
- many parameters have been passed to openat. */ \
- typedef int __open_too_many_args[-(sizeof (___arr) > sizeof (int))]; \
- ___r = openat (fd, fname, flags, ___arr[0]); \
- } \
- ___r; \
- })
+ (__extension__ \
+ ({ int ___r; \
+ /* If the compiler complains about an invalid type, excess elements, \
+ etc. in the initialization this means a parameter of the wrong type \
+ has been passed to openat. */ \
+ int ___arr[] = { __VA_ARGS__ }; \
+ if (__builtin_constant_p (flags) && ((flags) & O_CREAT) != 0) \
+ { \
+ /* If the compiler complains about the size of this array type the \
+ mode parameter is missing since O_CREAT has been used. */ \
+ typedef int __open_missing_mode[((flags) & O_CREAT) != 0 \
+ ? ((long int) sizeof (___arr) \
+ - (long int) sizeof (int)) : 1];\
+ } \
+ if (sizeof (___arr) == 0) \
+ { \
+ if (__builtin_constant_p (flags) && ((flags) & O_CREAT) == 0) \
+ ___r = openat (fd, fname, flags); \
+ else \
+ ___r = __openat_2 (fd, fname, flags); \
+ } \
+ else \
+ { \
+ /* If the compiler complains about the size of this array type too \
+ many parameters have been passed to openat. */ \
+ typedef int __open_too_many_args[-(sizeof (___arr) \
+ > sizeof (int))]; \
+ ___r = openat (fd, fname, flags, ___arr[0]); \
+ } \
+ ___r; \
+ }))
# ifdef __USE_LARGEFILE64
@@ -144,34 +150,36 @@ extern int __openat64_2 (int __fd, __const char *__path, int __oflag)
__nonnull ((2));
# define openat64(fd, fname, flags, ...) \
- ({ int ___r; \
- /* If the compiler complains about an invalid type, excess elements, etc \
- in the initialization this means a parameter of the wrong type has \
- been passed to openat64. */ \
- int ___arr[] = { __VA_ARGS__ }; \
- if (__builtin_constant_p (flags) && ((flags) & O_CREAT) != 0) \
- { \
- /* If the compiler complains about the size of this array type the \
- mode parameter is missing since O_CREAT has been used. */ \
- typedef int __open_missing_mode[((flags) & O_CREAT) != 0 \
- ? ((long int) sizeof (___arr) \
- - (long int) sizeof (int)) : 1]; \
- } \
- if (sizeof (___arr) == 0) \
- { \
- if (__builtin_constant_p (flags) && ((flags) & O_CREAT) == 0) \
- ___r = openat64 (fd, fname, flags); \
- else \
- ___r = __openat64_2 (fd, fname, flags); \
- } \
- else \
- { \
- /* If the compiler complains about the size of this array type too \
- many parameters have been passed to openat64. */ \
- typedef int __open_too_many_args[-(sizeof (___arr) > sizeof (int))]; \
- ___r = openat64 (fd, fname, flags, ___arr[0]); \
- } \
- ___r; \
- })
+ (__extension__ \
+ ({ int ___r; \
+ /* If the compiler complains about an invalid type, excess elements, \
+ etc. in the initialization this means a parameter of the wrong type \
+ has been passed to openat64. */ \
+ int ___arr[] = { __VA_ARGS__ }; \
+ if (__builtin_constant_p (flags) && ((flags) & O_CREAT) != 0) \
+ { \
+ /* If the compiler complains about the size of this array type the \
+ mode parameter is missing since O_CREAT has been used. */ \
+ typedef int __open_missing_mode[((flags) & O_CREAT) != 0 \
+ ? ((long int) sizeof (___arr) \
+ - (long int) sizeof (int)) : 1];\
+ } \
+ if (sizeof (___arr) == 0) \
+ { \
+ if (__builtin_constant_p (flags) && ((flags) & O_CREAT) == 0) \
+ ___r = openat64 (fd, fname, flags); \
+ else \
+ ___r = __openat64_2 (fd, fname, flags); \
+ } \
+ else \
+ { \
+ /* If the compiler complains about the size of this array type too \
+ many parameters have been passed to openat64. */ \
+ typedef int __open_too_many_args[-(sizeof (___arr) \
+ > sizeof (int))]; \
+ ___r = openat64 (fd, fname, flags, ___arr[0]); \
+ } \
+ ___r; \
+ }))
# endif
#endif
diff --git a/io/have_o_cloexec.c b/io/have_o_cloexec.c
new file mode 100644
index 0000000000..a83e8a4487
--- /dev/null
+++ b/io/have_o_cloexec.c
@@ -0,0 +1,24 @@
+/* Copyright (C) 2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <fcntl.h>
+#include <kernel-features.h>
+
+#if defined O_CLOEXEC && !defined __ASSUME_O_CLOEXEC
+int __have_o_cloexec;
+#endif