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<h3>
Shane Snyder pushed to branch master
at <a href="https://xgitlab.cels.anl.gov/darshan/darshan">darshan / darshan</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://xgitlab.cels.anl.gov/darshan/darshan/commit/969b6285f48b36d71428b26eac98d1b2441855ca">969b6285</a></strong>
<div>
<span>by Phil Carns</span>
<i>at 2017-01-19T08:16:46-08:00</i>
</div>
<pre class="commit-message" style="margin: 0; white-space: pre-wrap">skip instrumentation attempts on anonymous mmap()
Anonymous mmap() calls have no backing file and therefore won't match
any Darshan characterization records, so we can skip the record lookup
in this case. This also fixes a deadlock on Cray systems with hugepages
enabled, see #210.
</pre>
</li>
<li>
<strong><a href="https://xgitlab.cels.anl.gov/darshan/darshan/commit/165118c5517095ee0060bc25da355f695489cf3f">165118c5</a></strong>
<div>
<span>by Shane Snyder</span>
<i>at 2017-01-19T10:34:10-06:00</i>
</div>
<pre class="commit-message" style="margin: 0; white-space: pre-wrap">Merge branch 'issue-210-cray-hugepages' into 'master'
skip instrumentation attempts on anonymous mmap()
Closes #210
See merge request !5</pre>
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<h4>2 changed files:</h4>
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<a href="#00fe7828d56d7a3ee4030d6cea057cf13f50e70c" style="text-decoration: none">
ChangeLog
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<a href="#62d3c9bc6d4515bfe5c262ecb56de42ca32bc03c" style="text-decoration: none">
darshan-runtime/lib/darshan-posix.c
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<h4>Changes:</h4>
<li id="00fe7828d56d7a3ee4030d6cea057cf13f50e70c">
<a href="https://xgitlab.cels.anl.gov/darshan/darshan/compare/78ac2f2941f971ae63a7fc61ae98ddf3a058da70...165118c5517095ee0060bc25da355f695489cf3f#00fe7828d56d7a3ee4030d6cea057cf13f50e70c"><strong>ChangeLog</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="7" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="background: #fafafa; color: rgba(0,0,0,0.3); padding-left: 0.5em; padding-right: 0.5em" bgcolor="#fafafa">@@ -7,6 +7,9 @@ Darshan-3.1.3-pre1</td>
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7
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<td class="line_content noteable_line" style="padding-left: 0.5em; padding-right: 0.5em">
<pre style="margin: 0"> <span id="LC7" class="line">* add --enable-HDF5_1.10 configure option to explicitly enable HDF5 1.10+</span>
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<pre style="margin: 0"> <span id="LC8" class="line"> support, needed on some platforms for API compatibility </span>
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<td class="line_content noteable_line" style="padding-left: 0.5em; padding-right: 0.5em">
<pre style="margin: 0"> <span id="LC9" class="line"> - contributed by Karl-Ulrich Bamberg</span>
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<pre style="margin: 0">+<span id="LC10" class="line">* skip instrumentation attempts for anonymous mmap() calls; this avoids a</span>
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<td class="diff-line-num new new_line" data-linenumber="11" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0">+<span id="LC11" class="line"> potentential deadlock condition when used with hugepages on Cray systems.</span>
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<pre style="margin: 0">+<span id="LC12" class="line"> Reported by Glenn Lockwood and Cristian Simarro.</span>
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<pre style="margin: 0"> <span id="LC13" class="line"></span>
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<td class="diff-line-num new_line" data-linenumber="14" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
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<pre style="margin: 0"> <span id="LC14" class="line">Darshan-3.1.2</span>
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12
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<td class="diff-line-num new_line" data-linenumber="15" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
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<pre style="margin: 0"> <span id="LC15" class="line">=============</span>
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<li id="62d3c9bc6d4515bfe5c262ecb56de42ca32bc03c">
<a href="https://xgitlab.cels.anl.gov/darshan/darshan/compare/78ac2f2941f971ae63a7fc61ae98ddf3a058da70...165118c5517095ee0060bc25da355f695489cf3f#62d3c9bc6d4515bfe5c262ecb56de42ca32bc03c"><strong>darshan-runtime/lib/darshan-posix.c</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="925" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="925" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="background: #fafafa; color: rgba(0,0,0,0.3); padding-left: 0.5em; padding-right: 0.5em" bgcolor="#fafafa">@@ -925,6 +925,14 @@ void* DARSHAN_DECL(mmap)(void *addr, size_t length, int prot, int flags,</td>
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925
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925
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<pre style="margin: 0"> <span id="LC925" class="line"></span>
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<td class="diff-line-num old_line" data-linenumber="926" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
926
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<pre style="margin: 0"> <span id="LC926" class="line"> <span class="n" style="color: #333">MAP_OR_FAIL</span><span class="p">(</span><span class="n" style="color: #333">mmap</span><span class="p">);</span></span>
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927
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<pre style="margin: 0"> <span id="LC927" class="line"></span>
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928
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<pre style="margin: 0">+<span id="LC928" class="line"> <span class="k" style="font-weight: bold">if</span><span class="p">(</span><span class="n" style="color: #333">fd</span> <span class="o" style="font-weight: bold"><</span> <span class="mi" style="color: #099">0</span> <span class="o" style="font-weight: bold">||</span> <span class="p">(</span><span class="n" style="color: #333">flags</span> <span class="o" style="font-weight: bold">&</span> <span class="n" style="color: #333">MAP_ANONYMOUS</span><span class="p">))</span></span>
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929
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<pre style="margin: 0">+<span id="LC929" class="line"> <span class="p">{</span></span>
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<pre style="margin: 0">+<span id="LC930" class="line"> <span class="cm" style="color: #998; font-style: italic">/* mmap is not associated with a backing file; skip all Darshan</span></span>
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931
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<pre style="margin: 0">+<span id="LC931" class="line"><span class="cm" style="color: #998; font-style: italic"> * characterization attempts.</span></span>
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<td class="diff-line-num new new_line" data-linenumber="932" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
932
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<pre style="margin: 0">+<span id="LC932" class="line"><span class="cm" style="color: #998; font-style: italic"> */</span></span>
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<td class="diff-line-num new new_line" data-linenumber="933" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
933
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<pre style="margin: 0">+<span id="LC933" class="line"> <span class="k" style="font-weight: bold">return</span><span class="p">(</span><span class="n" style="color: #333">__real_mmap</span><span class="p">(</span><span class="n" style="color: #333">addr</span><span class="p">,</span> <span class="n" style="color: #333">length</span><span class="p">,</span> <span class="n" style="color: #333">prot</span><span class="p">,</span> <span class="n" style="color: #333">flags</span><span class="p">,</span> <span class="n" style="color: #333">fd</span><span class="p">,</span> <span class="n" style="color: #333">offset</span><span class="p">));</span></span>
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<td class="diff-line-num new new_line" data-linenumber="934" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
934
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<pre style="margin: 0">+<span id="LC934" class="line"> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="935" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
935
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<pre style="margin: 0">+<span id="LC935" class="line"></span>
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928
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<td class="diff-line-num new_line" data-linenumber="936" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
936
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<pre style="margin: 0"> <span id="LC936" class="line"> <span class="n" style="color: #333">ret</span> <span class="o" style="font-weight: bold">=</span> <span class="n" style="color: #333">__real_mmap</span><span class="p">(</span><span class="n" style="color: #333">addr</span><span class="p">,</span> <span class="n" style="color: #333">length</span><span class="p">,</span> <span class="n" style="color: #333">prot</span><span class="p">,</span> <span class="n" style="color: #333">flags</span><span class="p">,</span> <span class="n" style="color: #333">fd</span><span class="p">,</span> <span class="n" style="color: #333">offset</span><span class="p">);</span></span>
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929
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<td class="diff-line-num new_line" data-linenumber="937" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
937
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<pre style="margin: 0"> <span id="LC937" class="line"> <span class="k" style="font-weight: bold">if</span><span class="p">(</span><span class="n" style="color: #333">ret</span> <span class="o" style="font-weight: bold">==</span> <span class="n" style="color: #333">MAP_FAILED</span><span class="p">)</span></span>
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930
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938
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<pre style="margin: 0"> <span id="LC938" class="line"> <span class="k" style="font-weight: bold">return</span><span class="p">(</span><span class="n" style="color: #333">ret</span><span class="p">);</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="948" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="956" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="background: #fafafa; color: rgba(0,0,0,0.3); padding-left: 0.5em; padding-right: 0.5em" bgcolor="#fafafa">@@ -948,6 +956,14 @@ void* DARSHAN_DECL(mmap64)(void *addr, size_t length, int prot, int flags,</td>
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948
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956
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<pre style="margin: 0"> <span id="LC956" class="line"></span>
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<td class="diff-line-num old_line" data-linenumber="949" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
949
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<td class="diff-line-num new_line" data-linenumber="957" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
957
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<pre style="margin: 0"> <span id="LC957" class="line"> <span class="n" style="color: #333">MAP_OR_FAIL</span><span class="p">(</span><span class="n" style="color: #333">mmap64</span><span class="p">);</span></span>
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950
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958
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<pre style="margin: 0"> <span id="LC958" class="line"></span>
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<td class="diff-line-num new new_line" data-linenumber="959" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
959
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<pre style="margin: 0">+<span id="LC959" class="line"> <span class="k" style="font-weight: bold">if</span><span class="p">(</span><span class="n" style="color: #333">fd</span> <span class="o" style="font-weight: bold"><</span> <span class="mi" style="color: #099">0</span> <span class="o" style="font-weight: bold">||</span> <span class="p">(</span><span class="n" style="color: #333">flags</span> <span class="o" style="font-weight: bold">&</span> <span class="n" style="color: #333">MAP_ANONYMOUS</span><span class="p">))</span></span>
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960
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<pre style="margin: 0">+<span id="LC960" class="line"> <span class="p">{</span></span>
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<td class="diff-line-num new new_line" data-linenumber="961" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
961
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<pre style="margin: 0">+<span id="LC961" class="line"> <span class="cm" style="color: #998; font-style: italic">/* mmap is not associated with a backing file; skip all Darshan</span></span>
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<td class="diff-line-num new new_line" data-linenumber="962" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
962
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<pre style="margin: 0">+<span id="LC962" class="line"><span class="cm" style="color: #998; font-style: italic"> * characterization attempts.</span></span>
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<td class="diff-line-num new new_line" data-linenumber="963" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
963
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<pre style="margin: 0">+<span id="LC963" class="line"><span class="cm" style="color: #998; font-style: italic"> */</span></span>
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<td class="diff-line-num new new_line" data-linenumber="964" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
964
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<pre style="margin: 0">+<span id="LC964" class="line"> <span class="k" style="font-weight: bold">return</span><span class="p">(</span><span class="n" style="color: #333">__real_mmap64</span><span class="p">(</span><span class="n" style="color: #333">addr</span><span class="p">,</span> <span class="n" style="color: #333">length</span><span class="p">,</span> <span class="n" style="color: #333">prot</span><span class="p">,</span> <span class="n" style="color: #333">flags</span><span class="p">,</span> <span class="n" style="color: #333">fd</span><span class="p">,</span> <span class="n" style="color: #333">offset</span><span class="p">));</span></span>
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<td class="diff-line-num new new_line" data-linenumber="965" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
965
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<pre style="margin: 0">+<span id="LC965" class="line"> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="966" style="background: #ddfbe6; border-right-color: #c7f0d2; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#ddfbe6">
966
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<pre style="margin: 0">+<span id="LC966" class="line"></span>
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<td class="diff-line-num old_line" data-linenumber="951" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
951
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<td class="diff-line-num new_line" data-linenumber="967" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
967
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<pre style="margin: 0"> <span id="LC967" class="line"> <span class="n" style="color: #333">ret</span> <span class="o" style="font-weight: bold">=</span> <span class="n" style="color: #333">__real_mmap64</span><span class="p">(</span><span class="n" style="color: #333">addr</span><span class="p">,</span> <span class="n" style="color: #333">length</span><span class="p">,</span> <span class="n" style="color: #333">prot</span><span class="p">,</span> <span class="n" style="color: #333">flags</span><span class="p">,</span> <span class="n" style="color: #333">fd</span><span class="p">,</span> <span class="n" style="color: #333">offset</span><span class="p">);</span></span>
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<td class="diff-line-num old_line" data-linenumber="952" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
952
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<td class="diff-line-num new_line" data-linenumber="968" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
968
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<pre style="margin: 0"> <span id="LC968" class="line"> <span class="k" style="font-weight: bold">if</span><span class="p">(</span><span class="n" style="color: #333">ret</span> <span class="o" style="font-weight: bold">==</span> <span class="n" style="color: #333">MAP_FAILED</span><span class="p">)</span></span>
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<td class="diff-line-num old_line" data-linenumber="953" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
953
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<td class="diff-line-num new_line" data-linenumber="969" style="background: #fafafa; border-right-color: #f0f0f0; border-right-style: solid; border-right-width: 1px; color: rgba(0,0,0,0.3); padding: 0 5px; text-align: right; width: 35px" align="right" bgcolor="#fafafa">
969
</td>
<td class="line_content noteable_line" style="padding-left: 0.5em; padding-right: 0.5em">
<pre style="margin: 0"> <span id="LC969" class="line"> <span class="k" style="font-weight: bold">return</span><span class="p">(</span><span class="n" style="color: #333">ret</span><span class="p">);</span></span>
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