1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
\r
2 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
\r
3 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
\r
5 <meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
\r
6 <meta name="generator" content="AsciiDoc 8.6.9" />
\r
7 <title>ccache news</title>
\r
8 <style type="text/css">
\r
9 /* Shared CSS for AsciiDoc xhtml11 and html5 backends */
\r
13 font-family: Georgia,serif;
\r
17 h1, h2, h3, h4, h5, h6,
\r
18 div.title, caption.title,
\r
19 thead, p.table.header,
\r
21 #author, #revnumber, #revdate, #revremark,
\r
23 font-family: Arial,Helvetica,sans-serif;
\r
27 margin: 1em 5% 1em 5%;
\r
32 text-decoration: underline;
\r
48 h1, h2, h3, h4, h5, h6 {
\r
51 margin-bottom: 0.5em;
\r
56 border-bottom: 2px solid silver;
\r
76 border: 1px solid silver;
\r
81 margin-bottom: 0.5em;
\r
87 ul > li { color: #aaa; }
\r
88 ul > li > * { color: black; }
\r
90 .monospaced, code, pre {
\r
91 font-family: "Courier New", Courier, monospace;
\r
98 white-space: pre-wrap;
\r
108 #revnumber, #revdate, #revremark {
\r
113 border-top: 2px solid silver;
\r
114 padding-top: 0.5em;
\r
119 padding-bottom: 0.5em;
\r
123 padding-bottom: 0.5em;
\r
128 margin-bottom: 1.5em;
\r
130 div.imageblock, div.exampleblock, div.verseblock,
\r
131 div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
\r
132 div.admonitionblock {
\r
134 margin-bottom: 1.5em;
\r
136 div.admonitionblock {
\r
138 margin-bottom: 2.0em;
\r
143 div.content { /* Block element content. */
\r
147 /* Block element titles. */
\r
148 div.title, caption.title {
\r
153 margin-bottom: 0.5em;
\r
159 td div.title:first-child {
\r
162 div.content div.title:first-child {
\r
165 div.content + div.title {
\r
169 div.sidebarblock > div.content {
\r
170 background: #ffffee;
\r
171 border: 1px solid #dddddd;
\r
172 border-left: 4px solid #f0f0f0;
\r
176 div.listingblock > div.content {
\r
177 border: 1px solid #dddddd;
\r
178 border-left: 5px solid #f0f0f0;
\r
179 background: #f8f8f8;
\r
183 div.quoteblock, div.verseblock {
\r
184 padding-left: 1.0em;
\r
185 margin-left: 1.0em;
\r
187 border-left: 5px solid #f0f0f0;
\r
191 div.quoteblock > div.attribution {
\r
192 padding-top: 0.5em;
\r
196 div.verseblock > pre.content {
\r
197 font-family: inherit;
\r
198 font-size: inherit;
\r
200 div.verseblock > div.attribution {
\r
201 padding-top: 0.75em;
\r
204 /* DEPRECATED: Pre version 8.2.7 verse style literal block. */
\r
205 div.verseblock + div.attribution {
\r
209 div.admonitionblock .icon {
\r
210 vertical-align: top;
\r
213 text-decoration: underline;
\r
215 padding-right: 0.5em;
\r
217 div.admonitionblock td.content {
\r
218 padding-left: 0.5em;
\r
219 border-left: 3px solid #dddddd;
\r
222 div.exampleblock > div.content {
\r
223 border-left: 3px solid #dddddd;
\r
224 padding-left: 0.5em;
\r
227 div.imageblock div.content { padding-left: 0; }
\r
228 span.image img { border-style: none; vertical-align: text-bottom; }
\r
229 a.image:visited { color: white; }
\r
233 margin-bottom: 0.8em;
\r
238 font-style: normal;
\r
241 dd > *:first-child {
\r
246 list-style-position: outside;
\r
249 list-style-type: decimal;
\r
252 list-style-type: lower-alpha;
\r
255 list-style-type: upper-alpha;
\r
258 list-style-type: lower-roman;
\r
261 list-style-type: upper-roman;
\r
264 div.compact ul, div.compact ol,
\r
265 div.compact p, div.compact p,
\r
266 div.compact div, div.compact div {
\r
268 margin-bottom: 0.1em;
\r
280 margin-bottom: 0.8em;
\r
283 padding-bottom: 15px;
\r
285 dt.hdlist1.strong, td.hdlist1.strong {
\r
289 vertical-align: top;
\r
290 font-style: normal;
\r
291 padding-right: 0.8em;
\r
295 vertical-align: top;
\r
297 div.hdlist.compact tr {
\r
303 background: yellow;
\r
306 .footnote, .footnoteref {
\r
310 span.footnote, span.footnoteref {
\r
311 vertical-align: super;
\r
315 margin: 20px 0 20px 0;
\r
316 padding: 7px 0 0 0;
\r
319 #footnotes div.footnote {
\r
325 border-top: 1px solid silver;
\r
334 padding-right: 0.5em;
\r
335 padding-bottom: 0.3em;
\r
336 vertical-align: top;
\r
338 div.colist td img {
\r
343 #footer-badges { display: none; }
\r
347 margin-bottom: 2.5em;
\r
355 margin-bottom: 0.1em;
\r
358 div.toclevel0, div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {
\r
375 span.aqua { color: aqua; }
\r
376 span.black { color: black; }
\r
377 span.blue { color: blue; }
\r
378 span.fuchsia { color: fuchsia; }
\r
379 span.gray { color: gray; }
\r
380 span.green { color: green; }
\r
381 span.lime { color: lime; }
\r
382 span.maroon { color: maroon; }
\r
383 span.navy { color: navy; }
\r
384 span.olive { color: olive; }
\r
385 span.purple { color: purple; }
\r
386 span.red { color: red; }
\r
387 span.silver { color: silver; }
\r
388 span.teal { color: teal; }
\r
389 span.white { color: white; }
\r
390 span.yellow { color: yellow; }
\r
392 span.aqua-background { background: aqua; }
\r
393 span.black-background { background: black; }
\r
394 span.blue-background { background: blue; }
\r
395 span.fuchsia-background { background: fuchsia; }
\r
396 span.gray-background { background: gray; }
\r
397 span.green-background { background: green; }
\r
398 span.lime-background { background: lime; }
\r
399 span.maroon-background { background: maroon; }
\r
400 span.navy-background { background: navy; }
\r
401 span.olive-background { background: olive; }
\r
402 span.purple-background { background: purple; }
\r
403 span.red-background { background: red; }
\r
404 span.silver-background { background: silver; }
\r
405 span.teal-background { background: teal; }
\r
406 span.white-background { background: white; }
\r
407 span.yellow-background { background: yellow; }
\r
409 span.big { font-size: 2em; }
\r
410 span.small { font-size: 0.6em; }
\r
412 span.underline { text-decoration: underline; }
\r
413 span.overline { text-decoration: overline; }
\r
414 span.line-through { text-decoration: line-through; }
\r
416 div.unbreakable { page-break-inside: avoid; }
\r
426 margin-bottom: 1.5em;
\r
428 div.tableblock > table {
\r
429 border: 3px solid #527bbd;
\r
431 thead, p.table.header {
\r
438 /* Because the table frame attribute is overriden by CSS in most browsers. */
\r
439 div.tableblock > table[frame="void"] {
\r
440 border-style: none;
\r
442 div.tableblock > table[frame="hsides"] {
\r
443 border-left-style: none;
\r
444 border-right-style: none;
\r
446 div.tableblock > table[frame="vsides"] {
\r
447 border-top-style: none;
\r
448 border-bottom-style: none;
\r
459 margin-bottom: 1.5em;
\r
461 thead, p.tableblock.header {
\r
470 border-spacing: 0px;
\r
471 border-style: solid;
\r
472 border-color: #527bbd;
\r
473 border-collapse: collapse;
\r
475 th.tableblock, td.tableblock {
\r
478 border-style: solid;
\r
479 border-color: #527bbd;
\r
482 table.tableblock.frame-topbot {
\r
483 border-left-style: hidden;
\r
484 border-right-style: hidden;
\r
486 table.tableblock.frame-sides {
\r
487 border-top-style: hidden;
\r
488 border-bottom-style: hidden;
\r
490 table.tableblock.frame-none {
\r
491 border-style: hidden;
\r
494 th.tableblock.halign-left, td.tableblock.halign-left {
\r
497 th.tableblock.halign-center, td.tableblock.halign-center {
\r
498 text-align: center;
\r
500 th.tableblock.halign-right, td.tableblock.halign-right {
\r
504 th.tableblock.valign-top, td.tableblock.valign-top {
\r
505 vertical-align: top;
\r
507 th.tableblock.valign-middle, td.tableblock.valign-middle {
\r
508 vertical-align: middle;
\r
510 th.tableblock.valign-bottom, td.tableblock.valign-bottom {
\r
511 vertical-align: bottom;
\r
521 padding-top: 0.5em;
\r
522 padding-bottom: 0.5em;
\r
523 border-top: 2px solid silver;
\r
524 border-bottom: 2px solid silver;
\r
527 border-style: none;
\r
529 body.manpage div.sectionbody {
\r
534 body.manpage div#toc { display: none; }
\r
539 <script type="text/javascript">
\r
541 var asciidoc = { // Namespace.
\r
543 /////////////////////////////////////////////////////////////////////
\r
544 // Table Of Contents generator
\r
545 /////////////////////////////////////////////////////////////////////
\r
547 /* Author: Mihai Bazon, September 2002
\r
548 * http://students.infoiasi.ro/~mishoo
\r
550 * Table Of Content generator
\r
553 * Feel free to use this script under the terms of the GNU General Public
\r
554 * License, as long as you do not remove or alter this notice.
\r
557 /* modified by Troy D. Hanson, September 2006. License: GPL */
\r
558 /* modified by Stuart Rackham, 2006, 2009. License: GPL */
\r
560 // toclevels = 1..4.
\r
561 toc: function (toclevels) {
\r
563 function getText(el) {
\r
565 for (var i = el.firstChild; i != null; i = i.nextSibling) {
\r
566 if (i.nodeType == 3 /* Node.TEXT_NODE */) // IE doesn't speak constants.
\r
568 else if (i.firstChild != null)
\r
569 text += getText(i);
\r
574 function TocEntry(el, text, toclevel) {
\r
577 this.toclevel = toclevel;
\r
580 function tocEntries(el, toclevels) {
\r
581 var result = new Array;
\r
582 var re = new RegExp('[hH]([1-'+(toclevels+1)+'])');
\r
583 // Function that scans the DOM tree for header elements (the DOM2
\r
584 // nodeIterator API would be a better technique but not supported by all
\r
586 var iterate = function (el) {
\r
587 for (var i = el.firstChild; i != null; i = i.nextSibling) {
\r
588 if (i.nodeType == 1 /* Node.ELEMENT_NODE */) {
\r
589 var mo = re.exec(i.tagName);
\r
590 if (mo && (i.getAttribute("class") || i.getAttribute("className")) != "float") {
\r
591 result[result.length] = new TocEntry(i, getText(i), mo[1]-1);
\r
601 var toc = document.getElementById("toc");
\r
606 // Delete existing TOC entries in case we're reloading the TOC.
\r
607 var tocEntriesToRemove = [];
\r
609 for (i = 0; i < toc.childNodes.length; i++) {
\r
610 var entry = toc.childNodes[i];
\r
611 if (entry.nodeName.toLowerCase() == 'div'
\r
612 && entry.getAttribute("class")
\r
613 && entry.getAttribute("class").match(/^toclevel/))
\r
614 tocEntriesToRemove.push(entry);
\r
616 for (i = 0; i < tocEntriesToRemove.length; i++) {
\r
617 toc.removeChild(tocEntriesToRemove[i]);
\r
620 // Rebuild TOC entries.
\r
621 var entries = tocEntries(document.getElementById("content"), toclevels);
\r
622 for (var i = 0; i < entries.length; ++i) {
\r
623 var entry = entries[i];
\r
624 if (entry.element.id == "")
\r
625 entry.element.id = "_toc_" + i;
\r
626 var a = document.createElement("a");
\r
627 a.href = "#" + entry.element.id;
\r
628 a.appendChild(document.createTextNode(entry.text));
\r
629 var div = document.createElement("div");
\r
630 div.appendChild(a);
\r
631 div.className = "toclevel" + entry.toclevel;
\r
632 toc.appendChild(div);
\r
634 if (entries.length == 0)
\r
635 toc.parentNode.removeChild(toc);
\r
639 /////////////////////////////////////////////////////////////////////
\r
640 // Footnotes generator
\r
641 /////////////////////////////////////////////////////////////////////
\r
643 /* Based on footnote generation code from:
\r
644 * http://www.brandspankingnew.net/archive/2005/07/format_footnote.html
\r
647 footnotes: function () {
\r
648 // Delete existing footnote entries in case we're reloading the footnodes.
\r
650 var noteholder = document.getElementById("footnotes");
\r
654 var entriesToRemove = [];
\r
655 for (i = 0; i < noteholder.childNodes.length; i++) {
\r
656 var entry = noteholder.childNodes[i];
\r
657 if (entry.nodeName.toLowerCase() == 'div' && entry.getAttribute("class") == "footnote")
\r
658 entriesToRemove.push(entry);
\r
660 for (i = 0; i < entriesToRemove.length; i++) {
\r
661 noteholder.removeChild(entriesToRemove[i]);
\r
664 // Rebuild footnote entries.
\r
665 var cont = document.getElementById("content");
\r
666 var spans = cont.getElementsByTagName("span");
\r
669 for (i=0; i<spans.length; i++) {
\r
670 if (spans[i].className == "footnote") {
\r
672 var note = spans[i].getAttribute("data-note");
\r
674 // Use [\s\S] in place of . so multi-line matches work.
\r
675 // Because JavaScript has no s (dotall) regex flag.
\r
676 note = spans[i].innerHTML.match(/\s*\[([\s\S]*)]\s*/)[1];
\r
677 spans[i].innerHTML =
\r
678 "[<a id='_footnoteref_" + n + "' href='#_footnote_" + n +
\r
679 "' title='View footnote' class='footnote'>" + n + "</a>]";
\r
680 spans[i].setAttribute("data-note", note);
\r
682 noteholder.innerHTML +=
\r
683 "<div class='footnote' id='_footnote_" + n + "'>" +
\r
684 "<a href='#_footnoteref_" + n + "' title='Return to text'>" +
\r
685 n + "</a>. " + note + "</div>";
\r
686 var id =spans[i].getAttribute("id");
\r
687 if (id != null) refs["#"+id] = n;
\r
691 noteholder.parentNode.removeChild(noteholder);
\r
693 // Process footnoterefs.
\r
694 for (i=0; i<spans.length; i++) {
\r
695 if (spans[i].className == "footnoteref") {
\r
696 var href = spans[i].getElementsByTagName("a")[0].getAttribute("href");
\r
697 href = href.match(/#.*/)[0]; // Because IE return full URL.
\r
699 spans[i].innerHTML =
\r
700 "[<a href='#_footnote_" + n +
\r
701 "' title='View footnote' class='footnote'>" + n + "</a>]";
\r
707 install: function(toclevels) {
\r
710 function reinstall() {
\r
711 asciidoc.footnotes();
\r
713 asciidoc.toc(toclevels);
\r
717 function reinstallAndRemoveTimer() {
\r
718 clearInterval(timerId);
\r
722 timerId = setInterval(reinstall, 500);
\r
723 if (document.addEventListener)
\r
724 document.addEventListener("DOMContentLoaded", reinstallAndRemoveTimer, false);
\r
726 window.onload = reinstallAndRemoveTimer;
\r
730 asciidoc.install(2);
\r
734 <body class="article">
\r
736 <h1>ccache news</h1>
\r
737 <span id="revnumber">version 3.3.3</span>
\r
739 <div id="toctitle">Table of Contents</div>
740 <noscript><p><b>JavaScript must be enabled in your browser to display the table of contents.</b></p></noscript>
744 <div class="sect1">
\r
745 <h2 id="_ccache_3_3_3">ccache 3.3.3</h2>
\r
746 <div class="sectionbody">
\r
747 <div class="paragraph"><p>Release date: 2016-10-26</p></div>
\r
748 <div class="sect2">
\r
749 <h3 id="_bug_fixes">Bug fixes</h3>
\r
750 <div class="ulist"><ul>
\r
753 ccache now detects usage of <code>.incbin</code> assembler directives in the source code
\r
754 and avoids caching such compilations.
\r
761 <div class="sect1">
\r
762 <h2 id="_ccache_3_3_2">ccache 3.3.2</h2>
\r
763 <div class="sectionbody">
\r
764 <div class="paragraph"><p>Release date: 2016-09-28</p></div>
\r
765 <div class="sect2">
\r
766 <h3 id="_bug_fixes_2">Bug fixes</h3>
\r
767 <div class="ulist"><ul>
\r
770 Fixed a regression in ccache 3.3 related to potentially bad content of
\r
771 dependency files when compiling identical source code but with different
\r
777 Fixed a regression in ccache 3.3.1: ccache could get confused when using the
\r
778 compiler option <code>-Wp,</code> to pass multiple options to the preprocessor,
\r
779 resulting in missing dependency files from direct mode cache hits.
\r
786 <div class="sect1">
\r
787 <h2 id="_ccache_3_3_1">ccache 3.3.1</h2>
\r
788 <div class="sectionbody">
\r
789 <div class="paragraph"><p>Release date: 2016-09-07</p></div>
\r
790 <div class="sect2">
\r
791 <h3 id="_bug_fixes_3">Bug fixes</h3>
\r
792 <div class="ulist"><ul>
\r
795 Fixed a problem in the “multiple <code>-arch</code> options” support introduced in
\r
796 3.3. When using the direct mode (the default), different combinations of
\r
797 <code>-arch</code> options were not detected properly.
\r
802 Fixed an issue when compiler option <code>-Wp,-MT,path</code> is used instead of <code>-MT
\r
803 path</code> (and similar for <code>-MF</code>, <code>-MP</code> and <code>-MQ</code>) and <code>run_second_cpp</code>
\r
804 (<code>CCACHE_CPP2</code>) is enabled.
\r
811 <div class="sect1">
\r
812 <h2 id="_ccache_3_3">ccache 3.3</h2>
\r
813 <div class="sectionbody">
\r
814 <div class="paragraph"><p>Release date: 2016-08-27</p></div>
\r
815 <div class="sect2">
\r
816 <h3 id="_notes">Notes</h3>
\r
817 <div class="ulist"><ul>
\r
820 A C99-compatible compiler is now required to build ccache.
\r
825 <div class="sect2">
\r
826 <h3 id="_new_features_and_improvements">New features and improvements</h3>
\r
827 <div class="ulist"><ul>
\r
830 The configuration option <code>run_second_cpp</code> (<code>CCACHE_CPP2</code>) now defaults to
\r
831 true. This improves ccache’s out-of-the-box experience for compilers that
\r
832 can’t compile their own preprocessed output with the same outcome as if they
\r
833 compiled the real source code directly, e.g. newer versions of GCC and Clang.
\r
838 The configuration option <code>hash_dir</code> (<code>CCACHE_HASHDIR</code>) now defaults to true.
\r
843 Added a new <code>ignore_headers_in_manifest</code> configuration option, which
\r
844 specifies headers that should be ignored in the direct mode.
\r
849 Added a new <code>prefix_command_cpp</code> (<code>CCACHE_PREFIX_CPP</code>) configuration option,
\r
850 which specifies one or several prefixes to add to the command line ccache
\r
851 uses when invoking the preprocessor.
\r
856 Added a new <code>limit_multiple</code> (<code>CCACHE_LIMIT_MULTIPLE</code>) configuration option,
\r
857 which specifies how much of the cache to remove when cleaning.
\r
862 Added a new <code>keep_comments_cpp</code> (<code>CCACHE_COMMENTS</code>) configuration option,
\r
863 which tells ccache not to discard the comments before hashing preprocessor
\r
864 output. This can be used to check documentation with <strong>-Wdocumentation</strong>.
\r
869 Added a new sloppiness option <code>no_system_headers</code>, which tells ccache not to
\r
870 include system headers in manifest files.
\r
875 Added a new statistics counter that tracks the number of performed cleanups
\r
876 due to the cache size being over the limit. The value is shown in the output
\r
877 of “ccache -s”.
\r
882 Added support for relocating debug info directory using <code>-fdebug-prefix-map</code>.
\r
883 This allows for cache hits even when <code>hash_dir</code> is used in combination with
\r
884 <code>base_dir</code>.
\r
889 Added a new “cache hit rate” field to the output of “ccache -s”.
\r
894 Added support for caching compilation of assembler code produced by e.g.
\r
895 “gcc -S file.c”.
\r
900 Added support for cuda including the -optf/--options-file option.
\r
905 Added support for Fortran 77.
\r
910 Added support for multiple <code>-arch</code> options to produce "fat binaries".
\r
915 Multiple identical <code>-arch</code> arguments are now handled without bailing.
\r
920 The concatenated form of some long compiler options is now recognized, for
\r
921 example when using <code>-isystemPATH</code> instead of <code>-isystem PATH</code>.
\r
926 If hard-linking is enabled and but fails (e.g. due to cross-device linking),
\r
927 ccache now falls back to copying instead of running the compiler.
\r
932 Made the <code>hash_dir</code> option only have effect when generating debug info.
\r
937 ccache now knows how to convert absolute paths to relative paths inside
\r
938 dependency files when using <code>base_dir</code>.
\r
943 Improved parsing of <code>-g*</code> options.
\r
948 Made ccache understand <code>-Wp,-D*</code> options.
\r
953 ccache now understands the undocumented <code>-coverage</code> (only one dash) GCC
\r
959 Names of included files are no longer included in the hash of the compiler’s
\r
960 preprocessed output. This leads to more potential cache hits when not using
\r
966 Increased buffer size used when reading file data. This improves performance
\r
972 <div class="sect2">
\r
973 <h3 id="_bug_fixes_4">Bug fixes</h3>
\r
974 <div class="ulist"><ul>
\r
977 Bail out on too hard compiler option <code>-P</code>.
\r
982 Fixed clang test suite when running on Linux.
\r
987 Fixed build and test for MinGW32 and Windows.
\r
994 <div class="sect1">
\r
995 <h2 id="_ccache_3_2_9">ccache 3.2.9</h2>
\r
996 <div class="sectionbody">
\r
997 <div class="paragraph"><p>Release date: 2016-09-28</p></div>
\r
998 <div class="sect2">
\r
999 <h3 id="_bug_fixes_5">Bug fixes</h3>
\r
1000 <div class="ulist"><ul>
\r
1003 Fixed a regression in ccache 3.2.8: ccache could get confused when using the
\r
1004 compiler option <code>-Wp,</code> to pass multiple options to the preprocessor,
\r
1005 resulting in missing dependency files from direct mode cache hits.
\r
1012 <div class="sect1">
\r
1013 <h2 id="_ccache_3_2_8">ccache 3.2.8</h2>
\r
1014 <div class="sectionbody">
\r
1015 <div class="paragraph"><p>Release date: 2016-09-07</p></div>
\r
1016 <div class="sect2">
\r
1017 <h3 id="_bug_fixes_6">Bug fixes</h3>
\r
1018 <div class="ulist"><ul>
\r
1021 Fixed an issue when compiler option <code>-Wp,-MT,path</code> is used instead of <code>-MT
\r
1022 path</code> (and similar for <code>-MF</code>, <code>-MP</code> and <code>-MQ</code>) and <code>run_second_cpp</code>
\r
1023 (<code>CCACHE_CPP2</code>) is enabled.
\r
1028 ccache now understands the undocumented <code>-coverage</code> (only one dash) GCC
\r
1036 <div class="sect1">
\r
1037 <h2 id="_ccache_3_2_7">ccache 3.2.7</h2>
\r
1038 <div class="sectionbody">
\r
1039 <div class="paragraph"><p>Release date: 2016-07-20</p></div>
\r
1040 <div class="sect2">
\r
1041 <h3 id="_bug_fixes_7">Bug fixes</h3>
\r
1042 <div class="ulist"><ul>
\r
1045 Fixed a bug which could lead to false cache hits for compiler command lines
\r
1046 with a missing argument to an option that takes an argument.
\r
1051 ccache now knows how to work around a glitch in the output of GCC 6’s
\r
1059 <div class="sect1">
\r
1060 <h2 id="_ccache_3_2_6">ccache 3.2.6</h2>
\r
1061 <div class="sectionbody">
\r
1062 <div class="paragraph"><p>Release date: 2016-07-12</p></div>
\r
1063 <div class="sect2">
\r
1064 <h3 id="_bug_fixes_8">Bug fixes</h3>
\r
1065 <div class="ulist"><ul>
\r
1068 Fixed build problem on QNX, which lacks “SA_RESTART”.
\r
1073 Bail out on compiler option <code>-fstack-usage</code> since it creates a <code>.su</code> file
\r
1074 which ccache currently doesn’t handle.
\r
1079 Fixed a bug where (due to ccache rewriting paths) the compiler could choose
\r
1080 incorrect include files if <code>CCACHE_BASEDIR</code> is used and the source file path
\r
1081 is absolute and is a symlink.
\r
1088 <div class="sect1">
\r
1089 <h2 id="_ccache_3_2_5">ccache 3.2.5</h2>
\r
1090 <div class="sectionbody">
\r
1091 <div class="paragraph"><p>Release date: 2016-04-17</p></div>
\r
1092 <div class="sect2">
\r
1093 <h3 id="_new_features_and_improvements_2">New features and improvements</h3>
\r
1094 <div class="ulist"><ul>
\r
1097 Only pass clang-specific <code>-stdlib=</code> to the preprocessor.
\r
1102 Improved handling of stale NFS handles.
\r
1107 Made it harder to misinterpret documentation of boolean environment settings'
\r
1113 <div class="sect2">
\r
1114 <h3 id="_bug_fixes_9">Bug fixes</h3>
\r
1115 <div class="ulist"><ul>
\r
1118 Include m4 files used by configure.ac in the source dist archives.
\r
1123 Corrected "Performance" section in the manual regarding <code>__DATE_</code>, <code>__TIME__</code>
\r
1124 and <code>__FILE__</code> macros.
\r
1129 Fixed build on Solaris 10+ and AIX 7.
\r
1134 Fixed failure to create directories on QNX.
\r
1139 Don’t (try to) update manifest file in “read-only” and “read-only direct”
\r
1145 Fixed a bug in caching of <code>stat</code> system calls in “file_stat_matches
\r
1146 sloppiness mode”.
\r
1151 Fixed bug in hashing of clang plugins, leading to unnecessary cache misses.
\r
1156 Fixed --print-config to show “pch_defines sloppiness”.
\r
1161 The man page is now built when running “make install” from Git repository
\r
1169 <div class="sect1">
\r
1170 <h2 id="_ccache_3_2_4">ccache 3.2.4</h2>
\r
1171 <div class="sectionbody">
\r
1172 <div class="paragraph"><p>Release date: 2015-10-08</p></div>
\r
1173 <div class="sect2">
\r
1174 <h3 id="_bug_fixes_10">Bug fixes</h3>
\r
1175 <div class="ulist"><ul>
\r
1178 Fixed build error related to zlib on systems with older make versions
\r
1179 (regression in ccache 3.2.3).
\r
1184 Made conversion-to-bool explicit to avoid build warnings (and potential
\r
1185 runtime errors) on legacy systems.
\r
1190 Improved signal handling: Kill compiler on SIGTERM; wait for compiler to exit
\r
1191 before exiting; die appropriately.
\r
1196 Minor fixes related to Windows support.
\r
1201 The correct compression level is now used if compression is requested.
\r
1206 Fixed a bug where cache cleanup could be run too early for caches larger than
\r
1207 64 GiB on 32-bit systems.
\r
1214 <div class="sect1">
\r
1215 <h2 id="_ccache_3_2_3">ccache 3.2.3</h2>
\r
1216 <div class="sectionbody">
\r
1217 <div class="paragraph"><p>Release date: 2015-08-16</p></div>
\r
1218 <div class="sect2">
\r
1219 <h3 id="_new_features_and_improvements_3">New features and improvements</h3>
\r
1220 <div class="ulist"><ul>
\r
1223 Added support for compiler option <code>-gsplit-dwarf</code>.
\r
1228 <div class="sect2">
\r
1229 <h3 id="_bug_fixes_11">Bug fixes</h3>
\r
1230 <div class="ulist"><ul>
\r
1233 Support external zlib in nonstandard directory.
\r
1238 Avoid calling <code>exit()</code> inside an exit handler.
\r
1243 Let exit handler terminate properly.
\r
1248 Bail out on compiler option <code>--save-temps</code> in addition to <code>-save-temps</code>.
\r
1253 Only log "Disabling direct mode" once when failing to read potential include
\r
1261 <div class="sect1">
\r
1262 <h2 id="_ccache_3_2_2">ccache 3.2.2</h2>
\r
1263 <div class="sectionbody">
\r
1264 <div class="paragraph"><p>Release date: 2015-05-10</p></div>
\r
1265 <div class="sect2">
\r
1266 <h3 id="_new_features_and_improvements_4">New features and improvements</h3>
\r
1267 <div class="ulist"><ul>
\r
1270 Added support for <code>CCACHE_COMPILERCHECK=string:<value></code>. This is a faster
\r
1271 alternative to <code>CCACHE_COMPILERCHECK=<command></code> if the command’s output can
\r
1272 be precalculated by the build system.
\r
1277 Add support for caching code coverage results (compiling for gcov).
\r
1282 <div class="sect2">
\r
1283 <h3 id="_bug_fixes_12">Bug fixes</h3>
\r
1284 <div class="ulist"><ul>
\r
1287 Made hash of cached result created with and without <code>CCACHE_CPP2</code> different.
\r
1288 This makes it possible to rebuild with <code>CCACHE_CPP2</code> set without having to
\r
1289 clear the cache to get new results.
\r
1294 Don’t try to reset a non-existing stats file. This avoids “No such file or
\r
1295 directory” messages in the ccache log when the cache directory doesn’t
\r
1301 Fixed a bug where ccache deleted clang diagnostics after compiler failures.
\r
1306 Avoid performing an unnecessary copy of the object file on a cache miss.
\r
1311 Bail out on too hard compiler option <code>-fmodules</code>.
\r
1316 Bail out on too hard compiler option <code>-fplugin=libcc1plugin</code> (interaction
\r
1322 Fixed build error when compiling ccache with recent clang versions.
\r
1327 Removed signal-unsafe code from signal handler.
\r
1332 Corrected logic for when to output cached stderr.
\r
1337 Wipe the whole cached result on failure retrieving a cached file.
\r
1342 Fixed build error when compiling ccache with recent clang versions.
\r
1349 <div class="sect1">
\r
1350 <h2 id="_ccache_3_2_1">ccache 3.2.1</h2>
\r
1351 <div class="sectionbody">
\r
1352 <div class="paragraph"><p>Release date: 2014-12-10</p></div>
\r
1353 <div class="sect2">
\r
1354 <h3 id="_bug_fixes_13">Bug fixes</h3>
\r
1355 <div class="ulist"><ul>
\r
1358 Fixed regression in temporary file handling, which lead to incorrect
\r
1359 permissions for stats, manifest and ccache.conf files in the cache.
\r
1364 <code>CACHEDIR.TAG</code> files are now created in the [0-9a-f] subdirectories so that
\r
1365 ccache.conf is not lost in backups.
\r
1370 Made the default cache size suffix <code>G</code>, as previously documented.
\r
1375 <code>-fdiagnostics-color=auto</code> is now passed to the compiler even if stderr is
\r
1376 redirected. This fixes a problem when, for instance, a configure test probes
\r
1377 if the compiler (wrapped via ccache) supports <code>-fdiagnostics-color=auto</code>.
\r
1382 Added missing documentation for <code>max_files</code> and <code>max_size</code> configuration
\r
1390 <div class="sect1">
\r
1391 <h2 id="_ccache_3_2">ccache 3.2</h2>
\r
1392 <div class="sectionbody">
\r
1393 <div class="paragraph"><p>Release date: 2014-11-17</p></div>
\r
1394 <div class="sect2">
\r
1395 <h3 id="_new_features_and_improvements_5">New features and improvements</h3>
\r
1396 <div class="ulist"><ul>
\r
1399 Added support for configuring ccache via one or several configuration files
\r
1400 instead of via environment variables. Environment variables still have
\r
1401 priority but are no longer the recommended way of customizing ccache
\r
1402 behavior. See the manual for more information.
\r
1407 Added support for compiler error/warning messages with color.
\r
1412 Made creation of temporary directories and cache directories smarter to avoid
\r
1413 unnecessary <code>stat</code> calls.
\r
1418 Improved efficiency of the algorithm that scans for <code>__DATE_</code> and <code>__TIME__</code>
\r
1419 tokens in the hashed source code.
\r
1424 Added support for several binaries (separated by space) in <code>CCACHE_PREFIX</code>.
\r
1429 The <code>-c</code> option is no longer passed to the preprocessor. This fixes problems
\r
1430 with clang and Solaris’s C++ compiler.
\r
1435 ccache no longer passes preprocessor options like <code>-D</code> and <code>-I</code> to the
\r
1436 compiler when compiling preprocessed output. This fixes warnings emitted by
\r
1442 Compiler options <code>-fprofile-generate</code>, <code>-fprofile-arcs</code>, <code>-fprofile-use</code> and
\r
1443 <code>-fbranch-probabilities</code> are now handled without bailing.
\r
1448 Added support for clang’s <code>--serialize-diagnostic</code> option, storing the
\r
1449 diagnostic file (<code>.dia</code>) in the cache.
\r
1454 Added support for precompiled headers when using clang.
\r
1459 Added support for clang <code>.pth</code> (pretokenized header) files.
\r
1464 Changed the <code>-x</code> language option to use the new objective C standard for GCC
\r
1470 On a cache miss, ccache now instructs the compiler to create the object file
\r
1471 at the real destination and then copies the file into the cache instead of
\r
1472 the other way around. This is needed to support compiler options like
\r
1473 <code>-fprofile-arcs</code> and <code>--serialize-diagnostics</code>.
\r
1478 ccache now checks that included files' ctimes aren’t too new. This check can
\r
1479 be turned off by adding <code>include_file_ctime</code> to the “ccache sloppiness”
\r
1485 Added possibility to get cache hits based on filename, size, mtime and ctime
\r
1486 only. On other words, source code files are not even read, only stat-ed. This
\r
1487 operation mode is opt-in by adding <code>file_stat_matches</code> to the “ccache
\r
1488 sloppiness” setting.
\r
1493 The filename part of options like <code>-Wp,-MDfilename</code> is no longer included in
\r
1494 the hash since the filename doesn’t have any bearing on the result.
\r
1499 Added a “read-only direct” configuration setting, which is like the
\r
1500 ordinary read-only setting except that ccache will only try to retrieve
\r
1501 results from the cache using the direct mode, not the preprocessor mode.
\r
1506 The display and interpretation of cache size has been changed to use SI
\r
1512 Default cache size is now 5 GB (was previously 1 GiB).
\r
1517 Added configuration option to set the compression level of compressed object
\r
1518 files in the cache.
\r
1523 Added support for <code>@file</code> and <code>-@file</code> arguments (reading options from a
\r
1529 <code>-Wl,</code> options are no longer included in the hash since they don’t affect
\r
1535 Bail out on too hard compiler option <code>-Wp,-P</code>.
\r
1540 Optimized MD4 calculation code on little-endian systems.
\r
1545 Various improvements and fixes on win32.
\r
1550 Improved logging to the ccache log file.
\r
1555 Added <code>--dump-manifest</code> command-line option for debugging purposes.
\r
1560 Added <code>--with-bundled-zlib</code> configure option.
\r
1565 Upgraded bundled zlib to version 1.2.8.
\r
1570 Improved <code>dev.mk</code> to be more platform independent.
\r
1575 Made the test suite work with clang and gcc-llvm on OS X.
\r
1580 Various other improvements of the test suite.
\r
1585 <div class="sect2">
\r
1586 <h3 id="_bug_fixes_14">Bug fixes</h3>
\r
1587 <div class="ulist"><ul>
\r
1590 Any previous <code>.stderr</code> is now removed from the cache when recaching.
\r
1595 Fixed an issue when handling the <code>-arch</code> compiler option with an argument.
\r
1600 Fixed race condition when creating the initial cache directory.
\r
1605 Fixed test suite failures when <code>CC</code> is a ccache-wrapped compiler.
\r
1612 <div class="sect1">
\r
1613 <h2 id="_ccache_3_1_12">ccache 3.1.12</h2>
\r
1614 <div class="sectionbody">
\r
1615 <div class="paragraph"><p>Release date: 2016-07-12</p></div>
\r
1616 <div class="sect2">
\r
1617 <h3 id="_bug_fixes_15">Bug fixes</h3>
\r
1618 <div class="ulist"><ul>
\r
1621 Fixed a bug where (due to ccache rewriting paths) the compiler could choose
\r
1622 incorrect include files if <code>CCACHE_BASEDIR</code> is used and the source file path
\r
1623 is absolute and is a symlink.
\r
1630 <div class="sect1">
\r
1631 <h2 id="_ccache_3_1_11">ccache 3.1.11</h2>
\r
1632 <div class="sectionbody">
\r
1633 <div class="paragraph"><p>Release date: 2015-03-07</p></div>
\r
1634 <div class="sect2">
\r
1635 <h3 id="_bug_fixes_16">Bug fixes</h3>
\r
1636 <div class="ulist"><ul>
\r
1639 Fixed bug which could result in false cache hits when source code contains
\r
1640 <code>'"'</code> followed by <code>" /*"</code> or <code>" //"</code> (with variations).
\r
1645 Made hash of cached result created with and without <code>CCACHE_CPP2</code> different.
\r
1646 This makes it possible to rebuild with <code>CCACHE_CPP2</code> set without having to
\r
1647 clear the cache to get new results.
\r
1652 Don’t try to reset a non-existing stats file. This avoids “No such file or
\r
1653 directory” messages in the ccache log when the cache directory doesn’t
\r
1661 <div class="sect1">
\r
1662 <h2 id="_ccache_3_1_10">ccache 3.1.10</h2>
\r
1663 <div class="sectionbody">
\r
1664 <div class="paragraph"><p>Release date: 2014-10-19</p></div>
\r
1665 <div class="sect2">
\r
1666 <h3 id="_new_features_and_improvements_6">New features and improvements</h3>
\r
1667 <div class="ulist"><ul>
\r
1670 Added support for the <code>-Xclang</code> compiler option.
\r
1675 Improved handling of exit code of internally executed processes.
\r
1680 Zero length object files in the cache are now rejected as invalid.
\r
1685 Bail out on option <code>-gsplit-dwarf</code> (since it produces multiple output files).
\r
1690 Compiler option <code>-fdebug-prefix-map</code> is now ignored (not part of the hash).
\r
1691 (The <code>-fdebug-prefix-map</code> option may be used in combination with
\r
1692 <code>CCACHE_BASEDIR</code> to reuse results across different directories.)
\r
1697 Added note in documentation that <code>--ccache-skip</code> currently does not mean
\r
1698 “don’t hash the following option”.
\r
1703 To enable support for precompiled headers (PCH), <code>CCACHE_SLOPPINESS</code> now also
\r
1704 needs to include the new <code>pch_defines</code> sloppiness. This is because ccache
\r
1705 can’t detect changes in the source code when only defined macros have been
\r
1711 Stale files in the internal temporary directory (<code><ccache_dir>/tmp</code>) are now
\r
1712 cleaned up if they are older than one hour.
\r
1717 <div class="sect2">
\r
1718 <h3 id="_bug_fixes_17">Bug fixes</h3>
\r
1719 <div class="ulist"><ul>
\r
1722 Fixed path canonicalization in <code>make_relative_path()</code> when path doesn’t
\r
1728 Fixed bug in <code>common_dir_prefix_length()</code>. This corrects the <code>CCACHE_BASEDIR</code>
\r
1734 ccache no longer tries to create the cache directory when <code>CCACHE_DISABLE</code> is
\r
1740 Fixed bug when reading manifests with a very large number of file info
\r
1746 Fixed problem with logging of current working directory.
\r
1753 <div class="sect1">
\r
1754 <h2 id="_ccache_3_1_9">ccache 3.1.9</h2>
\r
1755 <div class="sectionbody">
\r
1756 <div class="paragraph"><p>Release date: 2013-01-06</p></div>
\r
1757 <div class="sect2">
\r
1758 <h3 id="_bug_fixes_18">Bug fixes</h3>
\r
1759 <div class="ulist"><ul>
\r
1762 The EAGAIN signal is now handled correctly when emitting cached stderr
\r
1763 output. This fixes a problem triggered by large error outputs from the
\r
1769 Subdirectories in the cache are no longer created in read-only mode.
\r
1774 Fixed so that ccache’s log file descriptor is not made available to the
\r
1780 Improved error reporting when failing to create temporary stdout/stderr files
\r
1781 when executing the compiler.
\r
1786 Disappearing temporary stdout/stderr files are now handled gracefully.
\r
1791 <div class="sect2">
\r
1792 <h3 id="_other">Other</h3>
\r
1793 <div class="ulist"><ul>
\r
1796 Fixed test suite to work on ecryptfs.
\r
1803 <div class="sect1">
\r
1804 <h2 id="_ccache_3_1_8">ccache 3.1.8</h2>
\r
1805 <div class="sectionbody">
\r
1806 <div class="paragraph"><p>Release date: 2012-08-11</p></div>
\r
1807 <div class="sect2">
\r
1808 <h3 id="_new_features_and_improvements_7">New features and improvements</h3>
\r
1809 <div class="ulist"><ul>
\r
1812 Made paths to dependency files relative in order to increase cache hits.
\r
1817 Added work-around to make ccache work with buggy GCC 4.1 when creating a
\r
1818 pre-compiled header.
\r
1823 Clang plugins are now hashed to catch plugin upgrades.
\r
1828 <div class="sect2">
\r
1829 <h3 id="_bug_fixes_19">Bug fixes</h3>
\r
1830 <div class="ulist"><ul>
\r
1833 Fixed crash when the current working directory has been removed.
\r
1838 Fixed crash when stderr is closed.
\r
1843 Corrected a corner case when parsing backslash escapes in string
\r
1849 Paths are now correctly canonicalized when computing paths relative to the
\r
1855 <div class="sect2">
\r
1856 <h3 id="_other_2">Other</h3>
\r
1857 <div class="ulist"><ul>
\r
1860 Made git version macro work when compiling outside of the source directory.
\r
1865 Fixed <code>static_assert</code> macro definition clash with GCC 4.7.
\r
1872 <div class="sect1">
\r
1873 <h2 id="_ccache_3_1_7">ccache 3.1.7</h2>
\r
1874 <div class="sectionbody">
\r
1875 <div class="paragraph"><p>Release date: 2012-01-08</p></div>
\r
1876 <div class="sect2">
\r
1877 <h3 id="_bug_fixes_20">Bug fixes</h3>
\r
1878 <div class="ulist"><ul>
\r
1881 Non-writable <code>CCACHE_DIR</code> is now handled gracefully when <code>CCACHE_READONLY</code> is
\r
1887 Made failure to create files (typically due to bad directory permissions) in
\r
1888 the cache directory fatal. Previously, such failures were silently and
\r
1889 erroneously flagged as "compiler produced stdout".
\r
1894 Both the <code>-specs=file</code> and <code>--specs=file</code> forms are now recognized.
\r
1899 Added recognition and hashing of GCC plugins specified with <code>-fplugin=file</code>.
\r
1904 <code>CCACHE_COMPILERCHECK</code> now also determines how to hash explicit specs files
\r
1905 (<code>-specs=file</code>).
\r
1910 Added <code>CPATH</code>, <code>C_INCLUDE_PATH</code> and similar environment variables to the hash
\r
1911 to avoid false cache hits when such variables have changed.
\r
1916 Corrected log message when unify mode is enabled.
\r
1921 Reverted the GCC bug compatibility introduced in ccache 3.1.5 for <code>-MT</code>/<code>-MQ</code>
\r
1922 options with concatenated arguments. (The bug is fixed in recent GCC
\r
1928 <div class="sect2">
\r
1929 <h3 id="_other_3">Other</h3>
\r
1930 <div class="ulist"><ul>
\r
1933 Corrected license header for <code>mdfour.c</code>.
\r
1938 Improved documentation on how to fix bad object files in the cache.
\r
1945 <div class="sect1">
\r
1946 <h2 id="_ccache_3_1_6">ccache 3.1.6</h2>
\r
1947 <div class="sectionbody">
\r
1948 <div class="paragraph"><p>Release date: 2011-08-21</p></div>
\r
1949 <div class="sect2">
\r
1950 <h3 id="_new_features_and_improvements_8">New features and improvements</h3>
\r
1951 <div class="ulist"><ul>
\r
1954 Rewrite argument to <code>--sysroot</code> if <code>CCACHE_BASEDIR</code> is used.
\r
1959 <div class="sect2">
\r
1960 <h3 id="_bug_fixes_21">Bug fixes</h3>
\r
1961 <div class="ulist"><ul>
\r
1964 Don’t crash if <code>getcwd()</code> fails.
\r
1969 Fixed alignment of “called for preprocessing” counter.
\r
1976 <div class="sect1">
\r
1977 <h2 id="_ccache_3_1_5">ccache 3.1.5</h2>
\r
1978 <div class="sectionbody">
\r
1979 <div class="paragraph"><p>Release date: 2011-05-29</p></div>
\r
1980 <div class="sect2">
\r
1981 <h3 id="_new_features_and_improvements_9">New features and improvements</h3>
\r
1982 <div class="ulist"><ul>
\r
1985 Added a new statistics counter named “called for preprocessing”.
\r
1990 The original command line is now logged to the file specified with
\r
1991 <code>CCACHE_LOGFILE</code>.
\r
1996 Improved error logging when system calls fail.
\r
2001 Added support for rewriting absolute paths in <code>-F</code>/<code>-iframework</code> GCC
\r
2007 Improved order of statistics counters in <code>ccache -s</code> output.
\r
2012 <div class="sect2">
\r
2013 <h3 id="_bug_fixes_22">Bug fixes</h3>
\r
2014 <div class="ulist"><ul>
\r
2017 The <code>-MF</code>/<code>-MT</code>/<code>-MQ</code> options with concatenated argument are now handled
\r
2018 correctly when they are last on the command line.
\r
2023 ccache is now bug compatible with GCC for the <code>-MT</code>/<code>-MQ</code> options with
\r
2024 concatenated arguments.
\r
2029 Fixed a minor memory leak.
\r
2034 Systems that lack (and don’t need to be linked with) libm are now supported.
\r
2041 <div class="sect1">
\r
2042 <h2 id="_ccache_3_1_4">ccache 3.1.4</h2>
\r
2043 <div class="sectionbody">
\r
2044 <div class="paragraph"><p>Release date: 2011-01-09</p></div>
\r
2045 <div class="sect2">
\r
2046 <h3 id="_bug_fixes_23">Bug fixes</h3>
\r
2047 <div class="ulist"><ul>
\r
2050 Made a work-around for a bug in <code>gzputc()</code> in zlib 1.2.5.
\r
2055 Corrupt manifest files are now removed so that they won’t block direct mode
\r
2061 ccache now copes with file systems that don’t know about symbolic links.
\r
2066 The file handle in now correctly closed on write error when trying to create
\r
2074 <div class="sect1">
\r
2075 <h2 id="_ccache_3_1_3">ccache 3.1.3</h2>
\r
2076 <div class="sectionbody">
\r
2077 <div class="paragraph"><p>Release date: 2010-11-28</p></div>
\r
2078 <div class="sect2">
\r
2079 <h3 id="_bug_fixes_24">Bug fixes</h3>
\r
2080 <div class="ulist"><ul>
\r
2083 The -MFarg, -MTarg and -MQarg compiler options (i.e, without space between
\r
2084 option and argument) are now handled correctly.
\r
2089 <div class="sect2">
\r
2090 <h3 id="_other_4">Other</h3>
\r
2091 <div class="ulist"><ul>
\r
2094 Portability fixes for HP-UX 11.00 and other esoteric systems.
\r
2101 <div class="sect1">
\r
2102 <h2 id="_ccache_3_1_2">ccache 3.1.2</h2>
\r
2103 <div class="sectionbody">
\r
2104 <div class="paragraph"><p>Release date: 2010-11-21</p></div>
\r
2105 <div class="sect2">
\r
2106 <h3 id="_bug_fixes_25">Bug fixes</h3>
\r
2107 <div class="ulist"><ul>
\r
2110 Bail out on too hard compiler options <code>-fdump-*</code>.
\r
2115 NULL return values from malloc/calloc of zero bytes are now handled
\r
2121 Fixed issue when parsing precompiler output on AIX.
\r
2126 <div class="sect2">
\r
2127 <h3 id="_other_5">Other</h3>
\r
2128 <div class="ulist"><ul>
\r
2131 Improved documentation on which information is included in the hash sum.
\r
2136 Made the “too new header file” test case work on file systems with
\r
2137 unsynchronized clocks.
\r
2142 The test suite now also works on systems that lack a /dev/zero.
\r
2149 <div class="sect1">
\r
2150 <h2 id="_ccache_3_1_1">ccache 3.1.1</h2>
\r
2151 <div class="sectionbody">
\r
2152 <div class="paragraph"><p>Release date: 2010-11-07</p></div>
\r
2153 <div class="sect2">
\r
2154 <h3 id="_bug_fixes_26">Bug fixes</h3>
\r
2155 <div class="ulist"><ul>
\r
2158 ccache now falls back to preprocessor mode when a non-regular include file
\r
2159 (device, socket, etc) has been detected so that potential hanging due to
\r
2160 blocking reads is avoided.
\r
2165 CRC errors are now detected when decompressing compressed files in the cache.
\r
2170 Fixed potential object file corruption race on NFS.
\r
2175 Minor documentation corrections.
\r
2180 Fixed configure detection of ar.
\r
2185 ccache development version (set by dev.mk) now works with gits whose
\r
2186 <code>describe</code> command doesn’t understand <code>--dirty</code>.
\r
2191 <div class="sect2">
\r
2192 <h3 id="_other_6">Other</h3>
\r
2193 <div class="ulist"><ul>
\r
2196 Minor debug log message improvements.
\r
2203 <div class="sect1">
\r
2204 <h2 id="_ccache_3_1">ccache 3.1</h2>
\r
2205 <div class="sectionbody">
\r
2206 <div class="paragraph"><p>Release date: 2010-09-16</p></div>
\r
2207 <div class="sect2">
\r
2208 <h3 id="_new_features_and_improvements_10">New features and improvements</h3>
\r
2209 <div class="ulist"><ul>
\r
2212 Added support for hashing the output of a custom command (e.g. <code>%compiler%
\r
2213 --version</code>) to identify the compiler instead of stat-ing or hashing the
\r
2214 compiler binary. This can improve robustness when the compiler (as seen by
\r
2215 ccache) actually isn’t the real compiler but another compiler wrapper.
\r
2220 Added support for caching compilations that use precompiled headers. (See the
\r
2221 manual for important instructions regarding this.)
\r
2226 Locking of the files containing statistics counters is now done using
\r
2227 symlinks instead of POSIX locks. This should make ccache behave a lot better
\r
2228 on file systems where POSIX locks are slow or broken (e.g. NFS on some
\r
2234 Manifest files are now updated without the need of taking locks.
\r
2239 Updates of statistics counters are now always done in one of the sub-level
\r
2240 statistics files. This reduces lock contention, which especially improves
\r
2241 performance on slow NFS mounts.
\r
2246 Reading and writing of statistics counters has been made forward-compatible
\r
2247 (unknown counters are retained).
\r
2252 Files are now read without using <code>mmap()</code>. This has two benefits: it’s more
\r
2253 robust against file changes during reading and it improves performance on
\r
2254 poor systems where <code>mmap()</code> doesn’t use the disk cache.
\r
2259 Added <code>.cp</code> and <code>.CP</code> as known C++ suffixes.
\r
2269 Added <code>-install_name</code> as an option known to take an argument. (This improves
\r
2270 statistics when using the Darwin linker.)
\r
2275 <div class="sect2">
\r
2276 <h3 id="_bug_fixes_27">Bug fixes</h3>
\r
2277 <div class="ulist"><ul>
\r
2280 Non-fatal error messages are now never printed to stderr but logged instead.
\r
2285 Fixed a bug affecting failing commands when <code>--ccache-skip</code> is used.
\r
2290 Made <code>--ccache-skip</code> work for all options.
\r
2295 EINTR is now handled correctly.
\r
2300 <div class="sect2">
\r
2301 <h3 id="_other_7">Other</h3>
\r
2302 <div class="ulist"><ul>
\r
2305 Work on porting ccache to win32 (native), mostly done by Ramiro Polla. The
\r
2306 port is not yet finished, but will hopefully be complete in some subsequent
\r
2312 Added a <code>--nostats</code> flag to the performance benchmark program.
\r
2317 Made the performance benchmark program more accurate when measuring cache
\r
2323 Added a new test framework for unit tests written in C.
\r
2328 Got rid of <code>configure-dev</code>; dev mode is now given by <code>dev.mk.in</code> presence.
\r
2333 Improved documentation on how to combine ccache with other compiler wrappers
\r
2334 (like <code>distcc</code>).
\r
2339 New <code>LICENSE.txt</code> file with licensing and copyright details about bundled
\r
2345 New <code>AUTHORS.txt</code> file with a list of ccache contributors.
\r
2350 New <code>HACKING.txt</code> file with some notes about ccache code conventions.
\r
2357 <div class="sect1">
\r
2358 <h2 id="_ccache_3_0_1">ccache 3.0.1</h2>
\r
2359 <div class="sectionbody">
\r
2360 <div class="paragraph"><p>Release date: 2010-07-15</p></div>
\r
2361 <div class="sect2">
\r
2362 <h3 id="_bug_fixes_28">Bug fixes</h3>
\r
2363 <div class="ulist"><ul>
\r
2366 The statistics counter “called for link” is now correctly updated when
\r
2367 linking with a single object file.
\r
2372 Fixed a problem with out-of-source builds.
\r
2379 <div class="sect1">
\r
2380 <h2 id="_ccache_3_0">ccache 3.0</h2>
\r
2381 <div class="sectionbody">
\r
2382 <div class="paragraph"><p>Release date: 2010-06-20</p></div>
\r
2383 <div class="sect2">
\r
2384 <h3 id="_general">General</h3>
\r
2385 <div class="ulist"><ul>
\r
2388 ccache is now licensed under the GNU General Public License (GPL) version 3
\r
2394 <div class="sect2">
\r
2395 <h3 id="_upgrade_notes">Upgrade notes</h3>
\r
2396 <div class="ulist"><ul>
\r
2399 The way the hashes are calculated has changed, so you won’t get cache hits
\r
2400 for compilation results stored by older ccache versions. Because of this, you
\r
2401 might as well clear the old cache directory with <code>ccache --clear</code> if you
\r
2402 want, unless you plan to keep using an older ccache version.
\r
2407 <div class="sect2">
\r
2408 <h3 id="_new_features_and_improvements_11">New features and improvements</h3>
\r
2409 <div class="ulist"><ul>
\r
2412 ccache now has a “direct mode” where it computes a hash of the source code
\r
2413 (including all included files) and compiler options without running the
\r
2414 preprocessor. By not running the preprocessor, CPU usage is reduced; the
\r
2415 speed is somewhere between 1 and 5 times that of ccache running in
\r
2416 traditional mode, depending on the circumstances. The speedup will be higher
\r
2417 when I/O is fast (e.g., when files are in the disk cache). The direct mode
\r
2418 can be disabled by setting <code>CCACHE_NODIRECT</code>.
\r
2423 Support has been added for rewriting absolute paths to relative paths when
\r
2424 hashing, in order to increase cache hit rate when building the same source
\r
2425 code in different directories even when compiling with <code>-g</code> and when using
\r
2426 absolute include directory paths. This is done by setting the
\r
2427 <code>CCACHE_BASEDIR</code> environment variable to an absolute path that specifies
\r
2428 which paths to rewrite.
\r
2433 Object files are now optionally stored compressed in the cache. The runtime
\r
2434 cost is negligible, and more files will fit in the ccache directory and in
\r
2435 the disk cache. Set <code>CCACHE_COMPRESS</code> to enable object file compression. Note
\r
2436 that you can’t use compression in combination with the hard link feature.
\r
2441 A <code>CCACHE_COMPILERCHECK</code> option has been added. This option tells ccache what
\r
2442 compiler-identifying information to hash to ensure that results retrieved
\r
2443 from the cache are accurate. Possible values are: none (don’t hash anything),
\r
2444 mtime (hash the compiler’s mtime and size) and content (hash the content of
\r
2445 the compiler binary). The default is mtime.
\r
2450 It is now possible to specify extra files whose contents should be included
\r
2451 in the hash sum by setting the <code>CCACHE_EXTRAFILES</code> option.
\r
2456 Added support for Objective-C and Objective-C++. The statistics counter
\r
2457 “not a C/C++ file” has been renamed to “unsupported source language”.
\r
2462 Added support for the <code>-x</code> compiler option.
\r
2467 Added support for long command-line options.
\r
2472 A <code>CACHEDIR.TAG</code> file is now created in the cache directory. See
\r
2473 <a href="http://www.brynosaurus.com/cachedir/">http://www.brynosaurus.com/cachedir/</a>.
\r
2478 Messages printed to the debug log (specified by <code>CCACHE_LOGFILE</code>) have been
\r
2484 You can relax some checks that ccache does in direct mode by setting
\r
2485 <code>CCACHE_SLOPPINESS</code>. See the manual for more information.
\r
2490 <code>CCACHE_TEMPDIR</code> no longer needs to be on the same filesystem as
\r
2491 <code>CCACHE_DIR</code>.
\r
2496 The default value of <code>CCACHE_TEMPDIR</code> has been changed to <code>$CCACHE_DIR/tmp</code>
\r
2497 to avoid cluttering the top directory.
\r
2502 Temporary files that later will be moved into the cache are now created in
\r
2503 the cache directory they will end up in. This makes ccache more friendly to
\r
2504 Linux’s directory layout.
\r
2509 Improved the test suite and added tests for most of the new functionality.
\r
2510 It’s now also possible to specify a subset of tests to run.
\r
2515 Standard error output from the compiler is now only stored in the cache if
\r
2516 it’s non-empty.
\r
2521 If the compiler produces no object file or an empty object file, but gives a
\r
2522 zero exit status (could be due to a file system problem, a buggy program
\r
2523 specified by <code>CCACHE_PREFIX</code>, etc.), ccache copes with it properly.
\r
2528 Added <code>installcheck</code> and <code>distcheck</code> make targets.
\r
2533 Clarified cache size limit options' and cleanup semantics.
\r
2538 Improved display of cache max size values.
\r
2543 The following options are no longer hashed in the preprocessor mode:
\r
2544 <code>-imacros</code>, <code>-imultilib</code>, <code>-iprefix</code>, <code>-iquote</code>, <code>-isysroot</code>, <code>-iwithprefix</code>,
\r
2545 <code>-iwithprefixbefore</code>, <code>-nostdinc</code>, <code>-nostdinc++</code> and <code>-U</code>.
\r
2550 <div class="sect2">
\r
2551 <h3 id="_bug_fixes_29">Bug fixes</h3>
\r
2552 <div class="ulist"><ul>
\r
2555 Various portability improvements.
\r
2560 Improved detection of home directory.
\r
2565 User-defined <code>CPPFLAGS</code> and <code>LDFLAGS</code> are now respected in the Makefile.
\r
2575 Computation of the hash sum has been improved to decrease the risk of hash
\r
2576 collisions. For instance, the compiler options <code>-X -Y</code> and <code>-X-Y</code> previously
\r
2577 contributed equally to the hash sum.
\r
2582 Bail out on too hard compiler options <code>--coverage</code>, <code>-fprofile-arcs</code>,
\r
2583 <code>-fprofile-generate</code>, <code>-fprofile-use</code>, <code>-frepo</code>, <code>-ftest-coverage</code> and
\r
2584 <code>-save-temps</code>. Also bail out on <code>@file</code> style options.
\r
2589 Errors when using multiple <code>-arch</code> compiler options are now noted as
\r
2590 “unsupported compiler option”.
\r
2595 <code>-MD</code>/<code>-MMD</code> options without <code>-MT</code>/<code>-MF</code> are now handled correctly.
\r
2600 The <code>-finput-charset</code> option is now handled correctly.
\r
2605 Added support for <code>-Wp,-MD</code> and <code>-Wp,-MMD</code> options.
\r
2610 The compiler options <code>-Xassembler</code>, <code>-b</code>, <code>-G</code> and <code>-V</code> are now correctly
\r
2611 recognized as taking an argument.
\r
2616 Debug information containing line numbers of predefined and command-line
\r
2617 macros (enabled with the compiler option <code>-g3</code>) will now be correct.
\r
2622 Corrected LRU cleanup handling of object files.
\r
2627 <code>utimes()</code> is now used instead of <code>utime()</code> when available.
\r
2632 Non-writable cache directories are now handled gracefully.
\r
2637 Corrected documentation about sharing the cache directory.
\r
2642 Fixed compilation warnings from GCC 4.3.
\r
2647 The command specified by <code>CCACHE_PREFIX</code> is no longer part of the hash.
\r
2652 Fixed bad memory access spotted by Valgrind.
\r
2657 Fixed a bug in <code>x_realloc</code>.
\r
2662 Freed memory is no longer referenced when compiling a <code>.i</code>/<code>.ii</code> file and
\r
2663 falling back to running the real compiler.
\r
2668 The test suite is now immune to external values of the <code>CCACHE_*</code> environment
\r
2674 Improved detection of recursive invocation.
\r
2679 The ccache binary is now not unconditionally stripped when installing.
\r
2684 Statistics counters are now correctly updated for -E option failures and
\r
2693 <div id="footnotes"><hr /></div>
\r
2695 <div id="footer-text">
\r
2696 Version 3.3.3<br />
\r
2698 2016-10-26 23:30:56 CEST
\r
projects / platform / upstream / ccache.git / blob