Merge remote branch 'origin/master' into fedora/master

ChangeLog

@@ -1,3 +1,59 @@
+2009-12-15  Maciej W. Rozycki  <macro@codesourcery.com>
+
+	[BZ #11115]
+	* stdlib/tst-makecontext3.c: New file.
+	* stdlib/Makefile (tests): Add new test.
+
+	* stdlib/tst-setcontext.c (check_called): Fix a typo.
+
+2009-12-17  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* configure.in: Enable multi-arch by default if the assembler
+	supports gnu_indirect_function symbol type and the architecture
+	supports it.
+
+2009-12-23  Ulrich Drepper  <drepper@redhat.com>
+
+	* include/stdlib.h: Exclude some includes and prototypes if _ISOMAC
+	is defined.
+
+2009-12-22  Samuel Thibault  <samuel.thibault@ens-lyon.org>
+
+	* hurd/hurdioctl.c (_hurd_locked_install_cttyid): Set newctty to
+	MACH_PORT_NULL when id != cttyid.
+
+2009-12-20  Samuel Thibault  <samuel.thibault@ens-lyon.org>
+
+	* sysdeps/mach/hurd/getcwd.c (cleanup): Do not call
+	__mach_port_deallocate on rootdevid.
+
+2009-12-17  Martin Schwidefsky  <schwidefsky@de.ibm.com>
+
+	* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela): Handle
+	R_390_PC32DBL. Remove unneeded R_390_PLT16DBL.
+	* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela): Remove
+	unneeded R_390_PLT16DBL and R_390_PLT32DBL.
+
+2009-12-21  Ulrich Drepper  <drepper@redhat.com>
+
+	[BZ #10992]
+	* sysdeps/unix/sysv/linux/futimens.c: Handle AT_FDCWD.
+	Patch by Eric Blake <ebb9@byu.net>.
+
+2009-12-15  Ulrich Drepper  <drepper@redhat.com>
+
+	[BZ #11093]
+	* bits/poll.h: Define POLLRDNORM, POLLRDBAND, POLLWRNORM, and
+	POLLWRBAND also for POSIX 2008.
+	* sysdeps/unix/sysv/linux/bits/poll.h: Likewise.
+	* sysdeps/unix/sysv/linux/sparc/bits/poll.h: Likewise.
+
+	* include/link.h (struct link_map): Move l_used into its own word.
+	* elf/dl-lookup.c (_dl_lookup_symbol_x): Only update l_used when it is
+	still zero.
+	* elf/dl-object.c (_dl_new_object): Set dl_used if we know it is
+	never really used.
+
 2009-12-13  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* sysdeps/i386/i686/multiarch/strcspn.S Include <init-arch.h>

bits/poll.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2000, 2001, 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
@@ -27,8 +27,8 @@
 #define POLLPRI		02              /* There is urgent data to read.  */
 #define POLLOUT		04              /* Writing now will not block.  */
 
-#ifdef __USE_XOPEN
-/* These values are defined in XPG4.2.  */
+#if defined __USE_XOPEN || defined __USE_XOPEN2K8
+/* These values are defined in XPG4.2 and later.  */
 # define POLLRDNORM	POLLIN		/* Normal data may be read.  */
 # define POLLRDBAND	POLLPRI		/* Priority data may be read.  */
 # define POLLWRNORM	POLLOUT		/* Writing now will not block.  */

configure

@@ -724,12 +724,12 @@ INSTALL_PROGRAM
 sysdeps_add_ons
 sysnames
 submachine
+multi_arch
 base_machine
 add_on_subdirs
 add_ons
 libc_cv_nss_crypt
 experimental_malloc
-multi_arch
 all_warnings
 force_install
 bindnow
@@ -3801,18 +3801,13 @@ fi
 if test "${enable_multi_arch+set}" = set; then
   enableval=$enable_multi_arch; multi_arch=$enableval
 else
-  multi_arch=no
+  multi_arch=default
 fi
 
-if test x"$multi_arch" = xyes; then
-  cat >>confdefs.h <<\_ACEOF
-#define USE_MULTIARCH 1
-_ACEOF
-
+if test x"$multi_arch" != xno; then
   multi_arch_d=/multiarch
 fi
 
-
 # Check whether --enable-experimental-malloc was given.
 if test "${enable_experimental_malloc+set}" = set; then
   enableval=$enable_experimental_malloc; experimental_malloc=$enableval
@@ -4359,6 +4354,44 @@ for b in $base ''; do
   done
 done
 
+# If the assembler supports gnu_indirect_function symbol type and the
+# architecture supports multi-arch, we enable multi-arch by default.
+if test "$multi_arch" = default; then
+{ $as_echo "$as_me:$LINENO: checking for assembler gnu_indirect_function symbol type support" >&5
+$as_echo_n "checking for assembler gnu_indirect_function symbol type support... " >&6; }
+if test "${libc_cv_asm_gnu_indirect_function+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  cat > conftest.s <<EOF
+.type foo,%gnu_indirect_function
+EOF
+if ${CC-cc} -c $ASFLAGS conftest.s 1>&5 2>&5;
+then
+  libc_cv_asm_gnu_indirect_function=yes
+else
+  libc_cv_asm_gnu_indirect_function=no
+fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:$LINENO: result: $libc_cv_asm_gnu_indirect_function" >&5
+$as_echo "$libc_cv_asm_gnu_indirect_function" >&6; }
+  multi_arch=no
+  if test "$libc_cv_asm_gnu_indirect_function" = yes; then
+    case $sysnames_add_ons$sysnames in
+    *"$multi_arch_d"*)
+       multi_arch=yes
+      ;;
+    esac
+  fi
+fi
+if test x"$multi_arch" = xyes; then
+  cat >>confdefs.h <<\_ACEOF
+#define USE_MULTIARCH 1
+_ACEOF
+
+fi
+
+
 if test -z "$os_used" && test "$os" != none; then
   { { $as_echo "$as_me:$LINENO: error: Operating system $os is not supported." >&5
 $as_echo "$as_me: error: Operating system $os is not supported." >&2;}

configure.in

@@ -272,12 +272,10 @@ AC_ARG_ENABLE([multi-arch],
 	      AC_HELP_STRING([--enable-multi-arch],
 			     [enable single DSO with optimizations for multiple architectures]),
 	      [multi_arch=$enableval],
-	      [multi_arch=no])
-if test x"$multi_arch" = xyes; then
-  AC_DEFINE(USE_MULTIARCH)
+	      [multi_arch=default])
+if test x"$multi_arch" != xno; then
   multi_arch_d=/multiarch
 fi
-AC_SUBST(multi_arch)
 
 AC_ARG_ENABLE([experimental-malloc],
 	      AC_HELP_STRING([--enable-experimental-malloc],
@@ -722,6 +720,35 @@ for b in $base ''; do
   done
 done
 
+# If the assembler supports gnu_indirect_function symbol type and the
+# architecture supports multi-arch, we enable multi-arch by default.
+if test "$multi_arch" = default; then
+AC_CACHE_CHECK([for assembler gnu_indirect_function symbol type support],
+               libc_cv_asm_gnu_indirect_function, [dnl
+cat > conftest.s <<EOF
+.type foo,%gnu_indirect_function
+EOF
+if ${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD;
+then
+  libc_cv_asm_gnu_indirect_function=yes
+else
+  libc_cv_asm_gnu_indirect_function=no
+fi
+rm -f conftest*])
+  multi_arch=no
+  if test "$libc_cv_asm_gnu_indirect_function" = yes; then
+    case $sysnames_add_ons$sysnames in
+    *"$multi_arch_d"*)
+       multi_arch=yes
+      ;;
+    esac
+  fi
+fi
+if test x"$multi_arch" = xyes; then
+  AC_DEFINE(USE_MULTIARCH)
+fi
+AC_SUBST(multi_arch)
+
 if test -z "$os_used" && test "$os" != none; then
   AC_MSG_ERROR(Operating system $os is not supported.)
 fi

elf/dl-lookup.c

@@ -777,7 +777,7 @@ _dl_lookup_symbol_x (const char *undef_name, struct link_map *undef_map,
   if (__builtin_expect (protected != 0, 0))
     {
       /* It is very tricky.  We need to figure out what value to
-         return for the protected symbol.  */
+	 return for the protected symbol.  */
       if (type_class == ELF_RTYPE_CLASS_PLT)
 	{
 	  if (current_value.s != NULL && current_value.m != undef_map)
@@ -822,7 +822,8 @@ _dl_lookup_symbol_x (const char *undef_name, struct link_map *undef_map,
 				  version, type_class, flags, skip_map);
 
   /* The object is used.  */
-  current_value.m->l_used = 1;
+  if (__builtin_expect (current_value.m->l_used == 0, 0))
+    current_value.m->l_used = 1;
 
   if (__builtin_expect (GLRO(dl_debug_mask)
 			& (DL_DEBUG_BINDINGS|DL_DEBUG_PRELINK), 0))
@@ -844,7 +845,7 @@ _dl_setup_hash (struct link_map *map)
   Elf_Symndx nchain;
 
   if (__builtin_expect (map->l_info[DT_ADDRTAGIDX (DT_GNU_HASH) + DT_NUM
-  				    + DT_THISPROCNUM + DT_VERSIONTAGNUM
+				    + DT_THISPROCNUM + DT_VERSIONTAGNUM
 				    + DT_EXTRANUM + DT_VALNUM] != NULL, 1))
     {
       Elf32_Word *hash32

elf/dl-object.c

@@ -1,5 +1,5 @@
 /* Storage management for the chain of loaded shared objects.
-   Copyright (C) 1995-2002,2004,2006,2007,2008 Free Software Foundation, Inc.
+   Copyright (C) 1995-2002,2004,2006-2008,2009 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
@@ -67,6 +67,10 @@ _dl_new_object (char *realname, const char *libname, int type,
 
   new->l_name = realname;
   new->l_type = type;
+  /* If we set the bit now since we know it is never used we avoid
+     dirtying the cache line later.  */
+  if ((GLRO(dl_debug_mask) & DL_DEBUG_UNUSED) == 0)
+    new->l_used = 1;
   new->l_loader = loader;
 #if NO_TLS_OFFSET != 0
   new->l_tls_offset = NO_TLS_OFFSET;
@@ -174,7 +178,7 @@ _dl_new_object (char *realname, const char *libname, int type,
 	  if (result == NULL)
 	    {
 	      /* We were not able to determine the current directory.
-	         Note that free(origin) is OK if origin == NULL.  */
+		 Note that free(origin) is OK if origin == NULL.  */
 	      free (origin);
 	      origin = (char *) -1;
 	      goto out;

hurd/hurdioctl.c

@@ -1,5 +1,6 @@
 /* ioctl commands which must be done in the C library.
-   Copyright (C) 1994,95,96,97,99,2001,02 Free Software Foundation, Inc.
+   Copyright (C) 1994,95,96,97,99,2001,2002,2009
+	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
@@ -169,33 +170,28 @@ _hurd_locked_install_cttyid (mach_port_t cttyid)
   for (i = 0; i < _hurd_dtablesize; ++i)
     {
       struct hurd_fd *const d = _hurd_dtable[i];
-      mach_port_t newctty;
+      mach_port_t newctty = MACH_PORT_NULL;
 
       if (d == NULL)
 	/* Nothing to do for an unused descriptor cell.  */
 	continue;
 
-      if (cttyid == MACH_PORT_NULL)
-	/* We now have no controlling tty at all.  */
-	newctty = MACH_PORT_NULL;
-      else
+      if (cttyid != MACH_PORT_NULL)
+	/* We do have some controlling tty.  */
 	HURD_PORT_USE (&d->port,
 		       ({ mach_port_t id;
 			  /* Get the io object's cttyid port.  */
 			  if (! __term_getctty (port, &id))
 			    {
-			      if (id == cttyid && /* Is it ours?  */
+			      if (id == cttyid /* Is it ours?  */
 				  /* Get the ctty io port.  */
-				  __term_open_ctty (port,
-						    _hurd_pid, _hurd_pgrp,
-						    &newctty))
+				  && __term_open_ctty (port,
+						       _hurd_pid, _hurd_pgrp,
+						       &newctty))
 				/* XXX it is our ctty but the call failed? */
 				newctty = MACH_PORT_NULL;
-			      __mach_port_deallocate
-				(__mach_task_self (), (mach_port_t) id);
+			      __mach_port_deallocate (__mach_task_self (), id);
 			    }
-			  else
-			    newctty = MACH_PORT_NULL;
 			  0;
 			}));
 

include/link.h

@@ -1,6 +1,6 @@
 /* Data structure for communication from the run-time dynamic linker for
    loaded ELF shared objects.
-   Copyright (C) 1995-2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 1995-2006, 2007, 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
@@ -180,7 +180,6 @@ struct link_map
     unsigned int l_need_tls_init:1; /* Nonzero if GL(dl_init_static_tls)
 				       should be called on this link map
 				       when relocation finishes.  */
-    unsigned int l_used:1;	/* Nonzero if the DSO is used.  */
     unsigned int l_auditing:1;	/* Nonzero if the DSO is used in auditing.  */
     unsigned int l_audit_any_plt:1; /* Nonzero if at least one audit module
 				       is interested in the PLT interception.*/
@@ -239,12 +238,15 @@ struct link_map
     struct link_map **l_initfini;
 
     /* List of the dependencies introduced through symbol binding.  */
-    unsigned int l_reldepsmax;
     struct link_map_reldeps
       {
 	unsigned int act;
 	struct link_map *list[];
       } *l_reldeps;
+    unsigned int l_reldepsmax;
+
+    /* Nonzero if the DSO is used.  */
+    unsigned int l_used;
 
     /* Various flag words.  */
     ElfW(Word) l_feature_1;

include/stdlib.h

@@ -9,7 +9,9 @@
 
 /* Now define the internal interfaces.  */
 #ifndef __Need_M_And_C
-# include <sys/stat.h>
+# ifndef _ISOMAC
+#  include <sys/stat.h>
+# endif
 
 __BEGIN_DECLS
 
@@ -78,8 +80,10 @@ extern int __clearenv (void);
 extern char *__canonicalize_file_name (__const char *__name);
 extern char *__realpath (__const char *__name, char *__resolved);
 extern int __ptsname_r (int __fd, char *__buf, size_t __buflen);
+# ifndef _ISOMAC
 extern int __ptsname_internal (int fd, char *buf, size_t buflen,
 			       struct stat64 *stp);
+# endif
 extern int __getpt (void);
 extern int __posix_openpt (int __oflag);
 

nptl/ChangeLog

@@ -1,3 +1,14 @@
+2009-12-18  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c (_init): Don't
+	call __gmon_start__.
+	* sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c (_init): Likewise.
+
+2009-12-17  Ulrich Drepper  <drepper@redhat.com>
+
+	* pthread_rwlock_init.c (__pthread_rwlock_init): Simplify code by
+	using memset.
+
 2009-12-01  Dinakar Guniguntala  <dino@in.ibm.com>
 
 	* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.h: Define