Merge changes between r7867 and r7922 from /fsf/trunk.

git-svn-id: svn://svn.eglibc.org/trunk@7923 7b3dc134-2b1b-0410-93df-9e9f96275f8d

8 files changed, 135 insertions, 76 deletions

diff --git a/libc/sysdeps/unix/opendir.c b/libc/sysdeps/unix/opendir.c
index 92029c654..fbf14f5ee 100644
--- a/libc/sysdeps/unix/opendir.c
+++ b/libc/sysdeps/unix/opendir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-1996,98,2000-2003,2005,2007
+/* Copyright (C) 1991-1996,98,2000-2003,2005,2007,2009
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -81,6 +81,7 @@ DIR *
 __opendir (const char *name)
 {
   struct stat64 statbuf;
+  struct stat64 *statp = NULL;
 
   if (__builtin_expect (name[0], '\1') == '\0')
     {
@@ -119,16 +120,14 @@ __opendir (const char *name)
   if (__builtin_expect (fd, 0) < 0)
     return NULL;
 
-  /* Now make sure this really is a directory and nothing changed since
-     the `stat' call.  We do not have to perform the test for the
-     descriptor being associated with a directory if we know the
-     O_DIRECTORY flag is honored by the kernel.  */
-  if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &statbuf), 0) < 0)
-    goto lose;
 #ifdef O_DIRECTORY
   if (o_directory_works <= 0)
 #endif
     {
+      /* Now make sure this really is a directory and nothing changed since
+	 the `stat' call.  */
+      if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &statbuf), 0) < 0)
+	goto lose;
       if (__builtin_expect (! S_ISDIR (statbuf.st_mode), 0))
 	{
 	  __set_errno (ENOTDIR);
@@ -136,9 +135,10 @@ __opendir (const char *name)
 	  close_not_cancel_no_status (fd);
 	  return NULL;
 	}
+      statp = &statbuf;
     }
 
-  return __alloc_dir (fd, true, &statbuf);
+  return __alloc_dir (fd, true, statp);
 }
 weak_alias (__opendir, opendir)
 
@@ -171,29 +171,23 @@ __alloc_dir (int fd, bool close_fd, const struct stat64 *statp)
 	goto lose;
     }
 
-  const size_t default_allocation = (BUFSIZ < sizeof (struct dirent64)
-				     ? sizeof (struct dirent64) : BUFSIZ);
-  size_t allocation;
+  const size_t default_allocation = (4 * BUFSIZ < sizeof (struct dirent64)
+				     ? sizeof (struct dirent64) : 4 * BUFSIZ);
+  const size_t small_allocation = (BUFSIZ < sizeof (struct dirent64)
+				   ? sizeof (struct dirent64) : BUFSIZ);
+  size_t allocation = default_allocation;
 #ifdef _STATBUF_ST_BLKSIZE
-  if (__builtin_expect ((size_t) statp->st_blksize >= sizeof (struct dirent64),
-			1))
+  if (statp != NULL && default_allocation < statp->st_blksize)
     allocation = statp->st_blksize;
-  else
 #endif
-    allocation = default_allocation;
 
   DIR *dirp = (DIR *) malloc (sizeof (DIR) + allocation);
   if (dirp == NULL)
     {
-#ifdef _STATBUF_ST_BLKSIZE
-      if (allocation == statp->st_blksize
-	  && allocation != default_allocation)
-	{
-	  allocation = default_allocation;
-	  dirp = (DIR *) malloc (sizeof (DIR) + allocation);
-	}
+      allocation = small_allocation;
+      dirp = (DIR *) malloc (sizeof (DIR) + allocation);
+
       if (dirp == NULL)
-#endif
       lose:
 	{
 	  if (close_fd)
diff --git a/libc/sysdeps/unix/sysv/linux/i386/bits/environments.h b/libc/sysdeps/unix/sysv/linux/i386/bits/environments.h
index 16f7732aa..785dd7e8f 100644
--- a/libc/sysdeps/unix/sysv/linux/i386/bits/environments.h
+++ b/libc/sysdeps/unix/sysv/linux/i386/bits/environments.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2001, 2004, 2009 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
@@ -25,29 +25,35 @@
    `-1' means it is never supported.  Undefined means it cannot be
    statically decided.
 
-   _POSIX_V6_ILP32_OFF32   32bit int, long, pointers, and off_t type
-   _POSIX_V6_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
+   _POSIX_V7_ILP32_OFF32   32bit int, long, pointers, and off_t type
+   _POSIX_V7_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
 
-   _POSIX_V6_LP64_OFF32	   64bit long and pointers and 32bit off_t type
-   _POSIX_V6_LPBIG_OFFBIG  64bit long and pointers and large off_t type
+   _POSIX_V7_LP64_OFF32	   64bit long and pointers and 32bit off_t type
+   _POSIX_V7_LPBIG_OFFBIG  64bit long and pointers and large off_t type
 
-   The macros _XBS5_ILP32_OFF32, _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and
-   _XBS5_LPBIG_OFFBIG were used in previous versions of the Unix standard
-   and are available only for compatibility.
+   The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
+   _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
+   _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
+   used in previous versions of the Unix standard and are available
+   only for compatibility.
 */
 
 /* By default we have 32-bit wide `int', `long int', pointers and `off_t'
    and all platforms support LFS.  */
+#define _POSIX_V7_ILP32_OFF32	1
+#define _POSIX_V7_ILP32_OFFBIG	1
 #define _POSIX_V6_ILP32_OFF32	1
 #define _POSIX_V6_ILP32_OFFBIG	1
 #define _XBS5_ILP32_OFF32	1
 #define _XBS5_ILP32_OFFBIG	1
 
 /* We optionally provide an environment with the above size but an 64-bit
-   side `off_t'.  Therefore we don't define _XBS5_ILP32_OFFBIG.  */
+   side `off_t'.  Therefore we don't define _POSIX_V7_ILP32_OFFBIG.  */
 
 /* Environments with 64-bit wide pointers can be provided,
    so these macros aren't defined:
+   # undef _POSIX_V7_LP64_OFF64
+   # undef _POSIX_V7_LPBIG_OFFBIG
    # undef _POSIX_V6_LP64_OFF64
    # undef _POSIX_V6_LPBIG_OFFBIG
    # undef _XBS5_LP64_OFF64
diff --git a/libc/sysdeps/unix/sysv/linux/lddlibc4.c b/libc/sysdeps/unix/sysv/linux/lddlibc4.c
index b7dd660f5..c4b9b44fa 100644
--- a/libc/sysdeps/unix/sysv/linux/lddlibc4.c
+++ b/libc/sysdeps/unix/sysv/linux/lddlibc4.c
@@ -1,5 +1,5 @@
 /* Stub for ldd script to print Linux libc4 dependencies.
-   Copyright (C) 1998, 2005 Free Software Foundation, Inc.
+   Copyright (C) 1998, 2005, 2009 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
@@ -56,22 +56,21 @@ main (int argc, char *argv[])
   if (argc != 2)
     return 1;
 
-  if (!strcmp (argv[1], "--help"))
+  if (strcmp (argv[1], "--help") == 0)
     {
-      printf (gettext ("Usage: lddlibc4 FILE\n\
-\n\
-For bug reporting instructions, please see:\n\
+      printf (gettext ("Usage: lddlibc4 FILE\n\n"));
+      printf (gettext ("For bug reporting instructions, please see:\n\
 %s.\n"), REPORT_BUGS_TO);
       return 0;
     }
-  else if (!strcmp (argv[1], "--version"))
+  else if (strcmp (argv[1], "--version") == 0)
     {
       printf ("lddlibc4 %s%s\n", PKGVERSION, VERSION);
       printf (gettext ("\
 Copyright (C) %s Free Software Foundation, Inc.\n\
 This is free software; see the source for copying conditions.  There is NO\n\
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
-"), "2008");
+"), "2009");
       return 0;
     }
 
diff --git a/libc/sysdeps/unix/sysv/linux/ldsodefs.h b/libc/sysdeps/unix/sysv/linux/ldsodefs.h
index 0bdca3c3f..0965f1496 100644
--- a/libc/sysdeps/unix/sysv/linux/ldsodefs.h
+++ b/libc/sysdeps/unix/sysv/linux/ldsodefs.h
@@ -1,5 +1,5 @@
 /* Run-time dynamic linker data structures for loaded ELF shared objects.
-   Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2006, 2009 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
@@ -53,4 +53,24 @@ extern void _dl_non_dynamic_init (void) internal_function;
 # define HAVE_AUX_PAGESIZE
 #endif
 
+/* Accept binaries which identify the binary as using Linux extensions.  */
+#define VALID_ELF_HEADER(hdr,exp,size)	(memcmp (hdr, exp, size) == 0	\
+					 || memcmp (hdr, expected2, size) == 0)
+#define VALID_ELF_OSABI(osabi)		(osabi == ELFOSABI_SYSV \
+					 || osabi == ELFOSABI_LINUX)
+#define VALID_ELF_ABIVERSION(ver)	(ver == 0)
+#define MORE_ELF_HEADER_DATA \
+  static const unsigned char expected2[EI_PAD] =	\
+  {							\
+    [EI_MAG0] = ELFMAG0,				\
+    [EI_MAG1] = ELFMAG1,				\
+    [EI_MAG2] = ELFMAG2,				\
+    [EI_MAG3] = ELFMAG3,				\
+    [EI_CLASS] = ELFW(CLASS),				\
+    [EI_DATA] = byteorder,				\
+    [EI_VERSION] = EV_CURRENT,				\
+    [EI_OSABI] = ELFOSABI_LINUX,			\
+    [EI_ABIVERSION] = 0					\
+  }
+
 #endif /* ldsodefs.h */
diff --git a/libc/sysdeps/unix/sysv/linux/powerpc/bits/environments.h b/libc/sysdeps/unix/sysv/linux/powerpc/bits/environments.h
index a51a564cb..c675ecc62 100644
--- a/libc/sysdeps/unix/sysv/linux/powerpc/bits/environments.h
+++ b/libc/sysdeps/unix/sysv/linux/powerpc/bits/environments.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2001, 2004, 2009 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
@@ -27,21 +27,25 @@
    `-1' means it is never supported.  Undefined means it cannot be
    statically decided.
 
-   _POSIX_V6_ILP32_OFF32   32bit int, long, pointers, and off_t type
-   _POSIX_V6_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
+   _POSIX_V7_ILP32_OFF32   32bit int, long, pointers, and off_t type
+   _POSIX_V7_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
 
-   _POSIX_V6_LP64_OFF32	   64bit long and pointers and 32bit off_t type
-   _POSIX_V6_LPBIG_OFFBIG  64bit long and pointers and large off_t type
+   _POSIX_V7_LP64_OFF32	   64bit long and pointers and 32bit off_t type
+   _POSIX_V7_LPBIG_OFFBIG  64bit long and pointers and large off_t type
 
-   The macros _XBS5_ILP32_OFF32, _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and
-   _XBS5_LPBIG_OFFBIG were used in previous versions of the Unix standard
-   and are available only for compatibility.
+   The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
+   _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
+   _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
+   used in previous versions of the Unix standard and are available
+   only for compatibility.
 */
 
 #if __WORDSIZE == 64
 
 /* Environments with 32-bit wide pointers are optionally provided.
    Therefore following macros aren't defined:
+   # undef _POSIX_V7_ILP32_OFF32
+   # undef _POSIX_V7_ILP32_OFFBIG
    # undef _POSIX_V6_ILP32_OFF32
    # undef _POSIX_V6_ILP32_OFFBIG
    # undef _XBS5_ILP32_OFF32
@@ -50,10 +54,12 @@
 
 /* We also have no use (for now) for an environment with bigger pointers
    and offsets.  */
+# define _POSIX_V7_LPBIG_OFFBIG	-1
 # define _POSIX_V6_LPBIG_OFFBIG	-1
 # define _XBS5_LPBIG_OFFBIG	-1
 
 /* By default we have 64-bit wide `long int', pointers and `off_t'.  */
+# define _POSIX_V7_LP64_OFF64	1
 # define _POSIX_V6_LP64_OFF64	1
 # define _XBS5_LP64_OFF64	1
 
@@ -61,16 +67,20 @@
 
 /* By default we have 32-bit wide `int', `long int', pointers and `off_t'
    and all platforms support LFS.  */
+# define _POSIX_V7_ILP32_OFF32	1
+# define _POSIX_V7_ILP32_OFFBIG	1
 # define _POSIX_V6_ILP32_OFF32	1
 # define _POSIX_V6_ILP32_OFFBIG	1
 # define _XBS5_ILP32_OFF32	1
 # define _XBS5_ILP32_OFFBIG	1
 
 /* We optionally provide an environment with the above size but an 64-bit
-   side `off_t'.  Therefore we don't define _XBS5_ILP32_OFFBIG.  */
+   side `off_t'.  Therefore we don't define _POSIX_V7_ILP32_OFFBIG.  */
 
 /* Environments with 64-bit wide pointers can be provided,
    so these macros aren't defined:
+   # undef _POSIX_V7_LP64_OFF64
+   # undef _POSIX_V7_LPBIG_OFFBIG
    # undef _POSIX_V6_LP64_OFF64
    # undef _POSIX_V6_LPBIG_OFFBIG
    # undef _XBS5_LP64_OFF64
diff --git a/libc/sysdeps/unix/sysv/linux/s390/bits/environments.h b/libc/sysdeps/unix/sysv/linux/s390/bits/environments.h
index 713d21c9a..29628b2ed 100644
--- a/libc/sysdeps/unix/sysv/linux/s390/bits/environments.h
+++ b/libc/sysdeps/unix/sysv/linux/s390/bits/environments.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2001, 2004, 2009 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
@@ -27,21 +27,25 @@
    `-1' means it is never supported.  Undefined means it cannot be
    statically decided.
 
-   _POSIX_V6_ILP32_OFF32   32bit int, long, pointers, and off_t type
-   _POSIX_V6_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
+   _POSIX_V7_ILP32_OFF32   32bit int, long, pointers, and off_t type
+   _POSIX_V7_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
 
-   _POSIX_V6_LP64_OFF32	   64bit long and pointers and 32bit off_t type
-   _POSIX_V6_LPBIG_OFFBIG  64bit long and pointers and large off_t type
+   _POSIX_V7_LP64_OFF32	   64bit long and pointers and 32bit off_t type
+   _POSIX_V7_LPBIG_OFFBIG  64bit long and pointers and large off_t type
 
-   The macros _XBS5_ILP32_OFF32, _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and
-   _XBS5_LPBIG_OFFBIG were used in previous versions of the Unix standard
-   and are available only for compatibility.
+   The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
+   _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
+   _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
+   used in previous versions of the Unix standard and are available
+   only for compatibility.
 */
 
 #if __WORDSIZE == 64
 
 /* Environments with 32-bit wide pointers are optionally provided.
    Therefore following macros aren't defined:
+   # undef _POSIX_V7_ILP32_OFF32
+   # undef _POSIX_V7_ILP32_OFFBIG
    # undef _POSIX_V6_ILP32_OFF32
    # undef _POSIX_V6_ILP32_OFFBIG
    # undef _XBS5_ILP32_OFF32
@@ -50,10 +54,12 @@
 
 /* We also have no use (for now) for an environment with bigger pointers
    and offsets.  */
+# define _POSIX_V7_LPBIG_OFFBIG	-1
 # define _POSIX_V6_LPBIG_OFFBIG	-1
 # define _XBS5_LPBIG_OFFBIG	-1
 
 /* By default we have 64-bit wide `long int', pointers and `off_t'.  */
+# define _POSIX_V7_LP64_OFF64	1
 # define _POSIX_V6_LP64_OFF64	1
 # define _XBS5_LP64_OFF64	1
 
@@ -61,16 +67,20 @@
 
 /* By default we have 32-bit wide `int', `long int', pointers and `off_t'
    and all platforms support LFS.  */
+# define _POSIX_V7_ILP32_OFF32	1
+# define _POSIX_V7_ILP32_OFFBIG	1
 # define _POSIX_V6_ILP32_OFF32	1
 # define _POSIX_V6_ILP32_OFFBIG	1
 # define _XBS5_ILP32_OFF32	1
 # define _XBS5_ILP32_OFFBIG	1
 
 /* We optionally provide an environment with the above size but an 64-bit
-   side `off_t'.  Therefore we don't define _XBS5_ILP32_OFFBIG.  */
+   side `off_t'.  Therefore we don't define _POSIX_V7_ILP32_OFFBIG.  */
 
 /* Environments with 64-bit wide pointers can be provided,
    so these macros aren't defined:
+   # undef _POSIX_V7_LP64_OFF64
+   # undef _POSIX_V7_LPBIG_OFFBIG
    # undef _POSIX_V6_LP64_OFF64
    # undef _POSIX_V6_LPBIG_OFFBIG
    # undef _XBS5_LP64_OFF64
diff --git a/libc/sysdeps/unix/sysv/linux/sparc/bits/environments.h b/libc/sysdeps/unix/sysv/linux/sparc/bits/environments.h
index a51a564cb..c675ecc62 100644
--- a/libc/sysdeps/unix/sysv/linux/sparc/bits/environments.h
+++ b/libc/sysdeps/unix/sysv/linux/sparc/bits/environments.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2001, 2004, 2009 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
@@ -27,21 +27,25 @@
    `-1' means it is never supported.  Undefined means it cannot be
    statically decided.
 
-   _POSIX_V6_ILP32_OFF32   32bit int, long, pointers, and off_t type
-   _POSIX_V6_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
+   _POSIX_V7_ILP32_OFF32   32bit int, long, pointers, and off_t type
+   _POSIX_V7_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
 
-   _POSIX_V6_LP64_OFF32	   64bit long and pointers and 32bit off_t type
-   _POSIX_V6_LPBIG_OFFBIG  64bit long and pointers and large off_t type
+   _POSIX_V7_LP64_OFF32	   64bit long and pointers and 32bit off_t type
+   _POSIX_V7_LPBIG_OFFBIG  64bit long and pointers and large off_t type
 
-   The macros _XBS5_ILP32_OFF32, _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and
-   _XBS5_LPBIG_OFFBIG were used in previous versions of the Unix standard
-   and are available only for compatibility.
+   The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
+   _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
+   _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
+   used in previous versions of the Unix standard and are available
+   only for compatibility.
 */
 
 #if __WORDSIZE == 64
 
 /* Environments with 32-bit wide pointers are optionally provided.
    Therefore following macros aren't defined:
+   # undef _POSIX_V7_ILP32_OFF32
+   # undef _POSIX_V7_ILP32_OFFBIG
    # undef _POSIX_V6_ILP32_OFF32
    # undef _POSIX_V6_ILP32_OFFBIG
    # undef _XBS5_ILP32_OFF32
@@ -50,10 +54,12 @@
 
 /* We also have no use (for now) for an environment with bigger pointers
    and offsets.  */
+# define _POSIX_V7_LPBIG_OFFBIG	-1
 # define _POSIX_V6_LPBIG_OFFBIG	-1
 # define _XBS5_LPBIG_OFFBIG	-1
 
 /* By default we have 64-bit wide `long int', pointers and `off_t'.  */
+# define _POSIX_V7_LP64_OFF64	1
 # define _POSIX_V6_LP64_OFF64	1
 # define _XBS5_LP64_OFF64	1
 
@@ -61,16 +67,20 @@
 
 /* By default we have 32-bit wide `int', `long int', pointers and `off_t'
    and all platforms support LFS.  */
+# define _POSIX_V7_ILP32_OFF32	1
+# define _POSIX_V7_ILP32_OFFBIG	1
 # define _POSIX_V6_ILP32_OFF32	1
 # define _POSIX_V6_ILP32_OFFBIG	1
 # define _XBS5_ILP32_OFF32	1
 # define _XBS5_ILP32_OFFBIG	1
 
 /* We optionally provide an environment with the above size but an 64-bit
-   side `off_t'.  Therefore we don't define _XBS5_ILP32_OFFBIG.  */
+   side `off_t'.  Therefore we don't define _POSIX_V7_ILP32_OFFBIG.  */
 
 /* Environments with 64-bit wide pointers can be provided,
    so these macros aren't defined:
+   # undef _POSIX_V7_LP64_OFF64
+   # undef _POSIX_V7_LPBIG_OFFBIG
    # undef _POSIX_V6_LP64_OFF64
    # undef _POSIX_V6_LPBIG_OFFBIG
    # undef _XBS5_LP64_OFF64
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/bits/environments.h b/libc/sysdeps/unix/sysv/linux/x86_64/bits/environments.h
index a51a564cb..c675ecc62 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/bits/environments.h
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/bits/environments.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2001, 2004, 2009 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
@@ -27,21 +27,25 @@
    `-1' means it is never supported.  Undefined means it cannot be
    statically decided.
 
-   _POSIX_V6_ILP32_OFF32   32bit int, long, pointers, and off_t type
-   _POSIX_V6_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
+   _POSIX_V7_ILP32_OFF32   32bit int, long, pointers, and off_t type
+   _POSIX_V7_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
 
-   _POSIX_V6_LP64_OFF32	   64bit long and pointers and 32bit off_t type
-   _POSIX_V6_LPBIG_OFFBIG  64bit long and pointers and large off_t type
+   _POSIX_V7_LP64_OFF32	   64bit long and pointers and 32bit off_t type
+   _POSIX_V7_LPBIG_OFFBIG  64bit long and pointers and large off_t type
 
-   The macros _XBS5_ILP32_OFF32, _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and
-   _XBS5_LPBIG_OFFBIG were used in previous versions of the Unix standard
-   and are available only for compatibility.
+   The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
+   _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
+   _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
+   used in previous versions of the Unix standard and are available
+   only for compatibility.
 */
 
 #if __WORDSIZE == 64
 
 /* Environments with 32-bit wide pointers are optionally provided.
    Therefore following macros aren't defined:
+   # undef _POSIX_V7_ILP32_OFF32
+   # undef _POSIX_V7_ILP32_OFFBIG
    # undef _POSIX_V6_ILP32_OFF32
    # undef _POSIX_V6_ILP32_OFFBIG
    # undef _XBS5_ILP32_OFF32
@@ -50,10 +54,12 @@
 
 /* We also have no use (for now) for an environment with bigger pointers
    and offsets.  */
+# define _POSIX_V7_LPBIG_OFFBIG	-1
 # define _POSIX_V6_LPBIG_OFFBIG	-1
 # define _XBS5_LPBIG_OFFBIG	-1
 
 /* By default we have 64-bit wide `long int', pointers and `off_t'.  */
+# define _POSIX_V7_LP64_OFF64	1
 # define _POSIX_V6_LP64_OFF64	1
 # define _XBS5_LP64_OFF64	1
 
@@ -61,16 +67,20 @@
 
 /* By default we have 32-bit wide `int', `long int', pointers and `off_t'
    and all platforms support LFS.  */
+# define _POSIX_V7_ILP32_OFF32	1
+# define _POSIX_V7_ILP32_OFFBIG	1
 # define _POSIX_V6_ILP32_OFF32	1
 # define _POSIX_V6_ILP32_OFFBIG	1
 # define _XBS5_ILP32_OFF32	1
 # define _XBS5_ILP32_OFFBIG	1
 
 /* We optionally provide an environment with the above size but an 64-bit
-   side `off_t'.  Therefore we don't define _XBS5_ILP32_OFFBIG.  */
+   side `off_t'.  Therefore we don't define _POSIX_V7_ILP32_OFFBIG.  */
 
 /* Environments with 64-bit wide pointers can be provided,
    so these macros aren't defined:
+   # undef _POSIX_V7_LP64_OFF64
+   # undef _POSIX_V7_LPBIG_OFFBIG
    # undef _POSIX_V6_LP64_OFF64
    # undef _POSIX_V6_LPBIG_OFFBIG
    # undef _XBS5_LP64_OFF64