* dlfcn/Makefile (LDLIBS-bug-atexit3-lib.so): Add

ld.so.

	* malloc/malloc.c (_int_malloc): Use full list insert and not
	shortcut which assumes the list is empty for large requests
	too.

	* elf/tst-addr1.c (do_test): Allow i.dli_sname "_IO_printf".

ChangeLog

@@ -1,3 +1,14 @@
+2006-08-31  Jakub Jelinek  <jakub@redhat.com>
+
+	* dlfcn/Makefile (LDLIBS-bug-atexit3-lib.so): Add
+	ld.so.
+
+	* malloc/malloc.c (_int_malloc): Use full list insert and not
+	shortcut which assumes the list is empty for large requests
+	too.
+
+	* elf/tst-addr1.c (do_test): Allow i.dli_sname "_IO_printf".
+
 2006-08-30  Jakub Jelinek  <jakub@redhat.com>
 
 	* sysdeps/unix/sysv/linux/alpha/bits/fcntl.h (splice): Add offin

dlfcn/Makefile

@@ -136,7 +136,8 @@ $(objpfx)bug-atexit2.out: $(objpfx)bug-atexit2-lib.so
 $(objpfx)bug-atexit2-lib.so: $(common-objpfx)libc.so \
 			     $(common-objpfx)libc_nonshared.a
 
-LDLIBS-bug-atexit3-lib.so = -lstdc++ -lgcc_eh $(common-objpfx)libc_nonshared.a
+LDLIBS-bug-atexit3-lib.so = -lstdc++ -lgcc_eh $(common-objpfx)elf/ld.so \
+			    $(common-objpfx)libc_nonshared.a
 $(objpfx)bug-atexit3: $(libdl)
 $(objpfx)bug-atexit3.out: $(objpfx)bug-atexit3-lib.so
 $(objpfx)bug-atexit3-lib.so: $(common-objpfx)libc.so \

elf/tst-addr1.c

@@ -12,7 +12,14 @@ do_test (void)
       return 1;
     }
   printf ("found symbol %s in %s\n", i.dli_sname, i.dli_fname);
-  return i.dli_sname == NULL || strcmp (i.dli_sname, "printf") != 0;
+  return i.dli_sname == NULL
+	 || (strcmp (i.dli_sname, "printf") != 0
+	     /* On architectures which create PIC code by default
+		&printf may resolve to an address in libc.so
+		rather than in the binary.  printf and _IO_printf
+		are aliased and which one comes first in the
+		hash table is up to the linker.  */
+	     && strcmp (i.dli_sname, "_IO_printf") != 0);
 }
 
 #define TEST_FUNCTION do_test ()

malloc/malloc.c

@@ -4230,8 +4230,14 @@ _int_malloc(mstate av, size_t bytes)
         /* Split */
         else {
           remainder = chunk_at_offset(victim, nb);
-          unsorted_chunks(av)->bk = unsorted_chunks(av)->fd = remainder;
+          /* We cannot assume the unsorted list is empty and therefore
-          remainder->bk = remainder->fd = unsorted_chunks(av);
+             have to perform a complete insert here.  */
+	  bck = unsorted_chunks(av);
+	  fwd = bck->fd;
+	  remainder->bk = bck;
+	  remainder->fd = fwd;
+	  bck->fd = remainder;
+	  fwd->bk = remainder;
           set_head(victim, nb | PREV_INUSE |
 		   (av != &main_arena ? NON_MAIN_ARENA : 0));
           set_head(remainder, remainder_size | PREV_INUSE);

nptl/ChangeLog

@@ -1,3 +1,13 @@
+2006-08-31  Ulrich Drepper  <drepper@redhat.com>
+
+	* pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock): Undo last
+	change because it can disturb too much existing code.  If real hard
+	reader preference is needed we'll introduce another type.
+	* sysdeps/pthread/pthread_rwlock_timedwrlock.c
+	(pthread_rwlock_timedwrlock): Likewise.
+	* sysdeps/pthread/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock):
+	Likewise.
+
 2006-08-30  Ulrich Drepper  <drepper@redhat.com>
 
 	* pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock): Respect

nptl/pthread_rwlock_trywrlock.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -30,10 +30,7 @@ __pthread_rwlock_trywrlock (rwlock)
 
   lll_mutex_lock (rwlock->__data.__lock);
 
-  if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0
+  if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
-      /* Respect the preference.  */
-      && (rwlock->__data.__flags != 0
-	  || rwlock->__data.__nr_readers_queued == 0))
     {
       rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid);
       result = 0;

nptl/sysdeps/pthread/pthread_rwlock_timedwrlock.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
 
@@ -40,9 +40,7 @@ pthread_rwlock_timedwrlock (rwlock, abstime)
       int err;
 
       /* Get the rwlock if there is no writer and no reader.  */
-      if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0
+      if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
-	  && (rwlock->__data.__flags != 0
-	      || rwlock->__data.__nr_readers_queued == 0))
 	{
 	  /* Mark self as writer.  */
 	  rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid);

nptl/sysdeps/pthread/pthread_rwlock_wrlock.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
 
@@ -37,9 +37,7 @@ __pthread_rwlock_wrlock (rwlock)
   while (1)
     {
       /* Get the rwlock if there is no writer and no reader.  */
-      if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0
+      if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
-	  && (rwlock->__data.__flags != 0
-	      || rwlock->__data.__nr_readers_queued == 0))
 	{
 	  /* Mark self as writer.  */
 	  rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid);