auto merge of #7079 : thestinger/rust/jemalloc, r=graydon

Minor release, the ChangeLog is included in the update.

src/rt/jemalloc/ChangeLog

@@ -6,6 +6,19 @@ found in the git revision history:
     http://www.canonware.com/cgi-bin/gitweb.cgi?p=jemalloc.git
     git://canonware.com/jemalloc.git
 
+* 3.4.0 (June 2, 2013)
+
+  This version is essentially a small bugfix release, but the addition of
+  aarch64 support requires that the minor version be incremented.
+
+  Bug fixes:
+  - Fix race-triggered deadlocks in chunk_record().  These deadlocks were
+    typically triggered by multiple threads concurrently deallocating huge
+    objects.
+
+  New features:
+  - Add support for the aarch64 architecture.
+
 * 3.3.1 (March 6, 2013)
 
   This version fixes bugs that are typically encountered only when utilizing
@@ -15,7 +28,7 @@ found in the git revision history:
   - Fix a locking order bug that could cause deadlock during fork if heap
     profiling were enabled.
   - Fix a chunk recycling bug that could cause the allocator to lose track of
-    whether a chunk was zeroed.   On FreeBSD, NetBSD, and OS X, it could cause
+    whether a chunk was zeroed.  On FreeBSD, NetBSD, and OS X, it could cause
     corruption if allocating via sbrk(2) (unlikely unless running with the
     "dss:primary" option specified).  This was completely harmless on Linux
     unless using mlockall(2) (and unlikely even then, unless the

src/rt/jemalloc/VERSION

@@ -1 +1 @@
-3.3.1-0-g9ef9d9e8c271cdf14f664b871a8f98c827714784
+3.4.0-0-g0ed518e5dab789ad2171bb38977a8927e2a26775

src/rt/jemalloc/bin/pprof

@@ -2,11 +2,11 @@
 
 # Copyright (c) 1998-2007, Google Inc.
 # All rights reserved.
-#
+# 
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
-#
+# 
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ -16,7 +16,7 @@
 #     * Neither the name of Google Inc. nor the names of its
 # contributors may be used to endorse or promote products derived from
 # this software without specific prior written permission.
-#
+# 
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
@@ -1683,23 +1683,23 @@ sub PrintSource {
                         HtmlPrintNumber($c2),
                         UnparseAddress($offset, $e->[0]),
                         CleanDisassembly($e->[3]));
-
+      
       # Append the most specific source line associated with this instruction
       if (length($dis) < 80) { $dis .= (' ' x (80 - length($dis))) };
       $dis = HtmlEscape($dis);
       my $f = $e->[5];
       my $l = $e->[6];
       if ($f ne $last_dis_filename) {
-        $dis .= sprintf("<span class=disasmloc>%s:%d</span>",
+        $dis .= sprintf("<span class=disasmloc>%s:%d</span>", 
                         HtmlEscape(CleanFileName($f)), $l);
       } elsif ($l ne $last_dis_linenum) {
         # De-emphasize the unchanged file name portion
         $dis .= sprintf("<span class=unimportant>%s</span>" .
-                        "<span class=disasmloc>:%d</span>",
+                        "<span class=disasmloc>:%d</span>", 
                         HtmlEscape(CleanFileName($f)), $l);
       } else {
         # De-emphasize the entire location
-        $dis .= sprintf("<span class=unimportant>%s:%d</span>",
+        $dis .= sprintf("<span class=unimportant>%s:%d</span>", 
                         HtmlEscape(CleanFileName($f)), $l);
       }
       $last_dis_filename = $f;
@@ -1788,8 +1788,8 @@ sub PrintSource {
         if (defined($dis) && $dis ne '') {
           $asm = "<span class=\"asm\">" . $dis . "</span>";
         }
-        my $source_class = (($n1 + $n2 > 0)
-                            ? "livesrc"
+        my $source_class = (($n1 + $n2 > 0) 
+                            ? "livesrc" 
                             : (($asm ne "") ? "deadsrc" : "nop"));
         printf $output (
           "<span class=\"line\">%5d</span> " .
@@ -4723,7 +4723,7 @@ sub MapToSymbols {
 	}
       }
     }
-
+    
     # Prepend to accumulated symbols for pcstr
     # (so that caller comes before callee)
     my $sym = $symbols->{$pcstr};
@@ -4917,7 +4917,7 @@ sub ConfigureTool {
     my $dirname = $`;    # this is everything up to and including the last slash
     if (-x "$dirname$tool") {
       $path = "$dirname$tool";
-    } else {
+    } else { 
       $path = $tool;
     }
   }

src/rt/jemalloc/configure.ac

@@ -26,7 +26,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
 ])
 
 dnl JE_COMPILABLE(label, hcode, mcode, rvar)
-dnl
+dnl 
 dnl Use AC_LINK_IFELSE() rather than AC_COMPILE_IFELSE() so that linker errors
 dnl cause failure.
 AC_DEFUN([JE_COMPILABLE],
@@ -232,7 +232,7 @@ CC_MM=1
 dnl Platform-specific settings.  abi and RPATH can probably be determined
 dnl programmatically, but doing so is error-prone, which makes it generally
 dnl not worth the trouble.
-dnl
+dnl 
 dnl Define cpp macros in CPPFLAGS, rather than doing AC_DEFINE(macro), since the
 dnl definitions need to be seen before any headers are included, which is a pain
 dnl to make happen otherwise.
@@ -965,7 +965,7 @@ fi
 
 dnl ============================================================================
 dnl jemalloc configuration.
-dnl
+dnl 
 
 dnl Set VERSION if source directory has an embedded git repository.
 if test -d "${srcroot}.git" ; then

src/rt/jemalloc/doc/jemalloc.3

@@ -2,12 +2,12 @@
 .\"     Title: JEMALLOC
 .\"    Author: Jason Evans
 .\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
-.\"      Date: 03/06/2013
+.\"      Date: 06/02/2013
 .\"    Manual: User Manual
-.\"    Source: jemalloc 3.3.1-0-g9ef9d9e8c271cdf14f664b871a8f98c827714784
+.\"    Source: jemalloc 3.4.0-0-g0ed518e5dab789ad2171bb38977a8927e2a26775
 .\"  Language: English
 .\"
-.TH "JEMALLOC" "3" "03/06/2013" "jemalloc 3.3.1-0-g9ef9d9e8c271" "User Manual"
+.TH "JEMALLOC" "3" "06/02/2013" "jemalloc 3.4.0-0-g0ed518e5dab7" "User Manual"
 .\" -----------------------------------------------------------------
 .\" * Define some portability stuff
 .\" -----------------------------------------------------------------
@@ -31,7 +31,7 @@
 jemalloc \- general purpose memory allocation functions
 .SH "LIBRARY"
 .PP
-This manual describes jemalloc 3\&.3\&.1\-0\-g9ef9d9e8c271cdf14f664b871a8f98c827714784\&. More information can be found at the
+This manual describes jemalloc 3\&.4\&.0\-0\-g0ed518e5dab789ad2171bb38977a8927e2a26775\&. More information can be found at the
 \m[blue]\fBjemalloc website\fR\m[]\&\s-2\u[1]\d\s+2\&.
 .SH "SYNOPSIS"
 .sp
@@ -376,7 +376,19 @@ Once, when the first call is made to one of the memory allocation routines, the
 The string pointed to by the global variable
 \fImalloc_conf\fR, the \(lqname\(rq of the file referenced by the symbolic link named
 /etc/malloc\&.conf, and the value of the environment variable
-\fBMALLOC_CONF\fR, will be interpreted, in that order, from left to right as options\&.
+\fBMALLOC_CONF\fR, will be interpreted, in that order, from left to right as options\&. Note that
+\fImalloc_conf\fR
+may be read before
+\fBmain\fR\fB\fR
+is entered, so the declaration of
+\fImalloc_conf\fR
+should specify an initializer that contains the final value to be read by jemalloc\&.
+\fImalloc_conf\fR
+is a compile\-time setting, whereas
+/etc/malloc\&.conf
+and
+\fBMALLOC_CONF\fR
+can be safely set any time prior to program invocation\&.
 .PP
 An options string is a comma\-separated list of option:value pairs\&. There is one key corresponding to each
 "opt\&.*"

src/rt/jemalloc/doc/jemalloc.xml.in

@@ -432,7 +432,14 @@ for (i = 0; i < nbins; i++) {
     referenced by the symbolic link named <filename
     class="symlink">/etc/malloc.conf</filename>, and the value of the
     environment variable <envar>MALLOC_CONF</envar>, will be interpreted, in
-    that order, from left to right as options.</para>
+    that order, from left to right as options.  Note that
+    <varname>malloc_conf</varname> may be read before
+    <function>main<parameter/></function> is entered, so the declaration of
+    <varname>malloc_conf</varname> should specify an initializer that contains
+    the final value to be read by jemalloc.  <varname>malloc_conf</varname> is
+    a compile-time setting, whereas <filename
+    class="symlink">/etc/malloc.conf</filename> and <envar>MALLOC_CONF</envar>
+    can be safely set any time prior to program invocation.</para>
 
     <para>An options string is a comma-separated list of option:value pairs.
     There is one key corresponding to each <link