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<h3>
Moritz Angermann pushed to branch wip/angerman/aarch64-ncg
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a3b232d7119d3c63fe976450483268e8c77b5e93">a3b232d7</a></strong>
<div>
<span>by Moritz Angermann</span>
<i>at 2020-10-26T21:05:55+08:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Revert "[AArch64] Aarch64 Always PIC"

This reverts commit 921276592218211f441fcf011fc52441e3a2f0a6.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e85f6825d2964d416661f2370cd29b5fda90f915">e85f6825</a></strong>
<div>
<span>by Moritz Angermann</span>
<i>at 2020-10-26T21:07:26+08:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Revert "[Storage/Adjustor] Drop size check in allocExec"

This reverts commit 37a62ae956a25e5832fbe125a4d8ee556fd11042.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a71ece1b3fc03eb8bea6cf3e391886abb8e00f15">a71ece1b</a></strong>
<div>
<span>by Moritz Angermann</span>
<i>at 2020-10-26T21:10:43+08:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">[Storage] Reinstate check; add comment.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/0f7df369abfd5b17fcde67a4aea11d425baafb65">0f7df369</a></strong>
<div>
<span>by Moritz Angermann</span>
<i>at 2020-10-27T10:52:25+08:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">[AArch64] Aarch64 Always PIC
</pre>
</li>
</ul>
<h4>2 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#774d88050336ef660c7a219fb06c480c2fc639bc">
compiler/GHC/Driver/Session.hs
</a>
</li>
<li class="file-stats">
<a href="#0bfe9d4217bccddd6b00d2d6a5e56e7de4c86273">
rts/sm/Storage.c
</a>
</li>
</ul>
<h4>Changes:</h4>
<li id="774d88050336ef660c7a219fb06c480c2fc639bc">
<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/5764bca329c18619598fbe99433f581a119a5898...0f7df369abfd5b17fcde67a4aea11d425baafb65#774d88050336ef660c7a219fb06c480c2fc639bc"><strong>compiler/GHC/Driver/Session.hs</strong></a>
<hr>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="3817" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="3817" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -3817,8 +3817,10 @@ validHoleFitsImpliedGFlags</td>
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<td class="diff-line-num new_line" data-linenumber="3817" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC3817" class="line" lang="haskell"><span class="n" style="color: #333;">default_PIC</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Platform</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">GeneralFlag</span><span class="p">]</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="3818" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
3818
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<td class="diff-line-num new_line" data-linenumber="3818" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC3818" class="line" lang="haskell"><span class="n" style="color: #333;">default_PIC</span> <span class="n" style="color: #333;">platform</span> <span class="o" style="font-weight: 600;">=</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="3819" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<td class="diff-line-num new_line" data-linenumber="3819" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
3819
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<pre style="margin: 0;"> <span id="LC3819" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">case</span> <span class="p">(</span><span class="n" style="color: #333;">platformOS</span> <span class="n" style="color: #333;">platform</span><span class="p">,</span> <span class="n" style="color: #333;">platformArch</span> <span class="n" style="color: #333;">platform</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="3820" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
3820
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<td class="diff-line-num new_line old" data-linenumber="3820" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC3820" class="line" lang="haskell">    <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OSDarwin</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">ArchX86_64</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Opt_PIC</span><span class="p">]</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="3821" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
3821
</td>
<td class="diff-line-num new_line old" data-linenumber="3820" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC3821" class="line" lang="haskell">    <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OSOpenBSD</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">ArchX86_64</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Opt_PIC</span><span class="p">]</span> <span class="c1" style="color: #998; font-style: italic;">-- Due to PIE support in</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="3822" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="3820" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC3820" class="line" lang="haskell">    <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OSDarwin</span><span class="p">,</span>  <span class="kt" style="color: #458; font-weight: 600;">ArchX86_64</span><span class="p">)</span>  <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Opt_PIC</span><span class="p">]</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="3822" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="3821" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC3821" class="line" lang="haskell">    <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OSDarwin</span><span class="p">,</span>  <span class="kt" style="color: #458; font-weight: 600;">ArchAarch64</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Opt_PIC</span><span class="p">]</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="3822" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="3822" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC3822" class="line" lang="haskell">    <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OSLinux</span><span class="p">,</span>   <span class="kt" style="color: #458; font-weight: 600;">ArchAarch64</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Opt_PIC</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Opt_ExternalDynamicRefs</span><span class="p">]</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="3822" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="3823" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC3823" class="line" lang="haskell">    <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OSOpenBSD</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">ArchX86_64</span><span class="p">)</span>  <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Opt_PIC</span><span class="p">]</span> <span class="c1" style="color: #998; font-style: italic;">-- Due to PIE support in</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="3822" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<td class="diff-line-num new_line" data-linenumber="3824" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC3824" class="line" lang="haskell">                                         <span class="c1" style="color: #998; font-style: italic;">-- OpenBSD since 5.3 release</span></span>
</pre>
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<td class="diff-line-num new_line" data-linenumber="3825" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC3825" class="line" lang="haskell">                                         <span class="c1" style="color: #998; font-style: italic;">-- (1 May 2013) we need to</span></span>
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<td class="diff-line-num new_line" data-linenumber="3826" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC3826" class="line" lang="haskell">                                         <span class="c1" style="color: #998; font-style: italic;">-- always generate PIC. See</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="5111" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="5113" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -5111,4 +5113,3 @@ initSDocContext dflags style = SDC</td>
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<pre style="margin: 0;"> <span id="LC5113" class="line" lang="haskell"><span class="cd">-- | Initialize the pretty-printing options using the default user style</span></span>
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<pre style="margin: 0;"> <span id="LC5114" class="line" lang="haskell"><span class="n" style="color: #333;">initDefaultSDocContext</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">DynFlags</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SDocContext</span></span>
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<pre style="margin: 0;"> <span id="LC5115" class="line" lang="haskell"><span class="n" style="color: #333;">initDefaultSDocContext</span> <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">initSDocContext</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">defaultUserStyle</span></span></pre>
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<pre style="margin: 0;">-<span id="LC5114" class="line" lang="haskell"></span></pre>
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<br>
</li>
<li id="0bfe9d4217bccddd6b00d2d6a5e56e7de4c86273">
<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/5764bca329c18619598fbe99433f581a119a5898...0f7df369abfd5b17fcde67a4aea11d425baafb65#0bfe9d4217bccddd6b00d2d6a5e56e7de4c86273"><strong>rts/sm/Storage.c</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1751,6 +1751,14 @@ AdjustorWritable allocateExec(W_ bytes, AdjustorExecutable *exec_ret)</td>
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<pre style="margin: 0;"> <span id="LC1751" class="line" lang="c"><span class="p">{</span></span>
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<pre style="margin: 0;"> <span id="LC1752" class="line" lang="c">    <span class="n" style="color: #333;">AdjustorWritable</span> <span class="n" style="color: #333;">writ</span><span class="p">;</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC1753" class="line" lang="c">    <span class="n" style="color: #333;">ffi_closure</span><span class="o" style="font-weight: 600;">*</span> <span class="n" style="color: #333;">cl</span><span class="p">;</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1754" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<pre style="margin: 0;">+<span id="LC1754" class="line" lang="c">    <span class="c1" style="color: #998; font-style: italic;">// This check is necessary as we can't use allocateExec for anything *but*</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC1755" class="line" lang="c">    <span class="c1" style="color: #998; font-style: italic;">// ffi_closures on ios/darwin on arm.  libffi does some heavy lifting to</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1754" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="1756" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC1756" class="line" lang="c">    <span class="c1" style="color: #998; font-style: italic;">// get around the X^W restrictions, and we can't just use this codepath</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1754" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="1757" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC1757" class="line" lang="c">    <span class="c1" style="color: #998; font-style: italic;">// to allocate generic executable space. For those cases we have to refer</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1754" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="1758" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC1758" class="line" lang="c">    <span class="c1" style="color: #998; font-style: italic;">// back to allocateWrite/markExec/freeWrite (see above.)</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1754" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="1759" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC1759" class="line" lang="c">    <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">bytes</span> <span class="o" style="font-weight: 600;">!=</span> <span class="k" style="font-weight: 600;">sizeof</span><span class="p">(</span><span class="n" style="color: #333;">ffi_closure</span><span class="p">))</span> <span class="p">{</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1754" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
 
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<td class="diff-line-num new new_line" data-linenumber="1760" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC1760" class="line" lang="c">        <span class="n" style="color: #333;">barf</span><span class="p">(</span><span class="s" style="color: #d14;">"allocateExec: for ffi_closure only"</span><span class="p">);</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC1761" class="line" lang="c">    <span class="p">}</span></span>
</pre>
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<td class="diff-line-num new_line" data-linenumber="1762" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
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<pre style="margin: 0;"> <span id="LC1762" class="line" lang="c">    <span class="n" style="color: #333;">ACQUIRE_SM_LOCK</span><span class="p">;</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC1763" class="line" lang="c">    <span class="n" style="color: #333;">cl</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">writ</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ffi_closure_alloc</span><span class="p">((</span><span class="kt" style="color: #458; font-weight: 600;">size_t</span><span class="p">)</span><span class="n" style="color: #333;">bytes</span><span class="p">,</span> <span class="n" style="color: #333;">exec_ret</span><span class="p">);</span></span>
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1756
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<td class="diff-line-num new_line" data-linenumber="1764" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1764
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1764" class="line" lang="c">    <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">cl</span> <span class="o" style="font-weight: 600;">!=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span> <span class="p">{</span></span>
</pre>
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