Merge changes between r858 and r1147 /fsf/trunk.

git-svn-id: svn://svn.eglibc.org/trunk@1148 7b3dc134-2b1b-0410-93df-9e9f96275f8d

5 files changed, 56 insertions, 16 deletions

diff --git a/libc/malloc/malloc.c b/libc/malloc/malloc.c
index d15ed57bd..6427608a7 100644
--- a/libc/malloc/malloc.c
+++ b/libc/malloc/malloc.c
@@ -2896,7 +2896,13 @@ static Void_t* sYSMALLOc(nb, av) INTERNAL_SIZE_T nb; mstate av;
       is one SIZE_SZ unit larger than for normal chunks, because there
       is no following chunk whose prev_size field could be used.
     */
+#if 1
+    /* See the front_misalign handling below, for glibc there is no
+       need for further alignments.  */
+    size = (nb + SIZE_SZ + pagemask) & ~pagemask;
+#else
     size = (nb + SIZE_SZ + MALLOC_ALIGN_MASK + pagemask) & ~pagemask;
+#endif
     tried_mmap = true;
 
     /* Don't try if size wraps around 0 */
@@ -2914,6 +2920,12 @@ static Void_t* sYSMALLOc(nb, av) INTERNAL_SIZE_T nb; mstate av;
           address argument for later munmap in free() and realloc().
         */
 
+#if 1
+	/* For glibc, chunk2mem increases the address by 2*SIZE_SZ and
+	   MALLOC_ALIGN_MASK is 2*SIZE_SZ-1.  Each mmap'ed area is page
+	   aligned and therefore definitely MALLOC_ALIGN_MASK-aligned.  */
+        assert (((INTERNAL_SIZE_T)chunk2mem(mm) & MALLOC_ALIGN_MASK) == 0);
+#else
         front_misalign = (INTERNAL_SIZE_T)chunk2mem(mm) & MALLOC_ALIGN_MASK;
         if (front_misalign > 0) {
           correction = MALLOC_ALIGNMENT - front_misalign;
@@ -2921,10 +2933,12 @@ static Void_t* sYSMALLOc(nb, av) INTERNAL_SIZE_T nb; mstate av;
           p->prev_size = correction;
           set_head(p, (size - correction) |IS_MMAPPED);
         }
-        else {
-          p = (mchunkptr)mm;
-          set_head(p, size|IS_MMAPPED);
-        }
+        else
+#endif
+	  {
+	    p = (mchunkptr)mm;
+	    set_head(p, size|IS_MMAPPED);
+	  }
 
         /* update statistics */
 
diff --git a/libc/malloc/memusage.c b/libc/malloc/memusage.c
index bf2978ef0..d11e9e6ed 100644
--- a/libc/malloc/memusage.c
+++ b/libc/malloc/memusage.c
@@ -80,6 +80,7 @@ static memusage_cntr_t large;
 static memusage_cntr_t calls_total;
 static memusage_cntr_t inplace;
 static memusage_cntr_t decreasing;
+static memusage_cntr_t realloc_free;
 static memusage_cntr_t inplace_mremap;
 static memusage_cntr_t decreasing_mremap;
 static memusage_size_t current_heap;
@@ -103,8 +104,8 @@ extern const char *__progname;
 
 struct entry
 {
-  size_t heap;
-  size_t stack;
+  uint64_t heap;
+  uint64_t stack;
   uint32_t time_low;
   uint32_t time_high;
 };
@@ -267,6 +268,7 @@ me (void)
 	      GETTIME (first.time_low, first.time_high);
 	      /* Write it two times since we need the starting and end time. */
 	      write (fd, &first, sizeof (first));
+	      write (fd, &first, sizeof (first));
 
 	      /* Determine the buffer size.  We use the default if the
 		 environment variable is not present.  */
@@ -411,6 +413,23 @@ realloc (void *old, size_t len)
       /* Keep track of total memory requirement.  */
       catomic_add (&grand_total, len - old_len);
     }
+
+  if (len == 0 && old != NULL)
+    {
+      /* Special case.  */
+      catomic_increment (&realloc_free);
+      /* Keep track of total memory freed using `free'.  */
+      catomic_add (&total[idx_free], real->length);
+
+      /* Update the allocation data and write out the records if necessary.  */
+      update_data (NULL, 0, old_len);
+
+      /* Do the real work.  */
+      (*freep) (real);
+
+      return NULL;
+    }
+
   /* Remember the size of the request.  */
   if (len < 65536)
     catomic_increment (&histogram[len / 16]);
@@ -770,7 +789,12 @@ dest (void)
   if (fd != -1)
     {
       /* Write the partially filled buffer.  */
-      write (fd, buffer, buffer_cnt * sizeof (struct entry));
+      if (buffer_cnt > buffer_size)
+	write (fd, buffer + buffer_size,
+	       (buffer_cnt - buffer_size) * sizeof (struct entry));
+      else
+	write (fd, buffer, buffer_cnt * sizeof (struct entry));
+
       /* Go back to the beginning of the file.  We allocated two records
 	 here when we opened the file.  */
       lseek (fd, 0, SEEK_SET);
@@ -794,7 +818,7 @@ dest (void)
 \e[01;32mMemory usage summary:\e[0;0m heap total: %llu, heap peak: %lu, stack peak: %lu\n\
 \e[04;34m         total calls   total memory   failed calls\e[0m\n\
 \e[00;34m malloc|\e[0m %10lu   %12llu   %s%12lu\e[00;00m\n\
-\e[00;34mrealloc|\e[0m %10lu   %12llu   %s%12lu\e[00;00m   (in place: %ld, dec: %ld)\n\
+\e[00;34mrealloc|\e[0m %10lu   %12llu   %s%12lu\e[00;00m  (nomove:%ld, dec:%ld, free:%ld)\n\
 \e[00;34m calloc|\e[0m %10lu   %12llu   %s%12lu\e[00;00m\n\
 \e[00;34m   free|\e[0m %10lu   %12llu\n",
 	   (unsigned long long int) grand_total, (unsigned long int) peak_heap,
@@ -807,7 +831,9 @@ dest (void)
 	   (unsigned long long int) total[idx_realloc],
 	   failed[idx_realloc] ? "\e[01;41m" : "",
 	   (unsigned long int) failed[idx_realloc],
-	   (unsigned long int) inplace, (unsigned long int) decreasing,
+	   (unsigned long int) inplace,
+	   (unsigned long int) decreasing,
+	   (unsigned long int) realloc_free,
 	   (unsigned long int) calls[idx_calloc],
 	   (unsigned long long int) total[idx_calloc],
 	   failed[idx_calloc] ? "\e[01;41m" : "",
@@ -820,7 +846,7 @@ dest (void)
 \e[00;34mmmap(r)|\e[0m %10lu   %12llu   %s%12lu\e[00;00m\n\
 \e[00;34mmmap(w)|\e[0m %10lu   %12llu   %s%12lu\e[00;00m\n\
 \e[00;34mmmap(a)|\e[0m %10lu   %12llu   %s%12lu\e[00;00m\n\
-\e[00;34m mremap|\e[0m %10lu   %12llu   %s%12lu\e[00;00m   (in place: %ld, dec: %ld)\n\
+\e[00;34m mremap|\e[0m %10lu   %12llu   %s%12lu\e[00;00m  (nomove: %ld, dec:%ld)\n\
 \e[00;34m munmap|\e[0m %10lu   %12llu   %s%12lu\e[00;00m\n",
 	     (unsigned long int) calls[idx_mmap_r],
 	     (unsigned long long int) total[idx_mmap_r],
diff --git a/libc/malloc/memusage.sh b/libc/malloc/memusage.sh
index ad833523f..67af4998c 100755
--- a/libc/malloc/memusage.sh
+++ b/libc/malloc/memusage.sh
@@ -1,5 +1,5 @@
 #! @BASH@
-# Copyright (C) 1999-2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 1999-2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 # Contributed by Ulrich Drepper <drepper@gnu.org>, 1999.
 
@@ -71,7 +71,7 @@ do_version() {
   printf $"Copyright (C) %s Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-" "2006"
+" "2007"
   printf $"Written by %s.
 " "Ulrich Drepper"
   exit 0
diff --git a/libc/malloc/memusagestat.c b/libc/malloc/memusagestat.c
index d8fc71b72..93ac2cd74 100644
--- a/libc/malloc/memusagestat.c
+++ b/libc/malloc/memusagestat.c
@@ -81,8 +81,8 @@ static struct argp argp =
 
 struct entry
 {
-  size_t heap;
-  size_t stack;
+  uint64_t heap;
+  uint64_t stack;
   uint32_t time_low;
   uint32_t time_high;
 };
diff --git a/libc/malloc/mtrace.pl b/libc/malloc/mtrace.pl
index 8a0fbc7e9..280b469d9 100644
--- a/libc/malloc/mtrace.pl
+++ b/libc/malloc/mtrace.pl
@@ -1,7 +1,7 @@
 #! @PERL@
 eval "exec @PERL@ -S $0 $*"
     if 0;
-# Copyright (C) 1997-2004, 2005, 2006 Free Software Foundation, Inc.
+# Copyright (C) 1997-2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 # Contributed by Ulrich Drepper <drepper@gnu.org>, 1997.
 # Based on the mtrace.awk script.
@@ -45,7 +45,7 @@ arglist: while (@ARGV) {
 	$ARGV[0] eq "--vers" || $ARGV[0] eq "--versi" ||
 	$ARGV[0] eq "--versio" || $ARGV[0] eq "--version") {
 	print "mtrace (GNU $PACKAGE) $VERSION\n";
-	print "Copyright (C) 2006 Free Software Foundation, Inc.\n";
+	print "Copyright (C) 2007 Free Software Foundation, Inc.\n";
 	print "This is free software; see the source for copying conditions.  There is NO\n";
 	print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n";
 	print "Written by Ulrich Drepper <drepper\@gnu.org>\n";