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<h3>
Ben Gamari pushed to branch wip/fix-windows
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/0c544faecaf8dddc8a3df24bbe83e559158fdd93">0c544fae</a></strong>
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<span>by Ben Gamari</span>
<i>at 2019-06-18T23:13:10Z</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">linker: Disable code unloading
As noted in #16841, there are currently a variety of bugs in the
unloading logic. These only affect Windows since code unloading is
disabled on Linux, where we build with `GhcDynamic=YES` by default.
In the interest of getting the tree green on Windows disable code
unloading until the issues are resolved.
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<h4>1 changed file:</h4>
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<a href="#47f4bea1d308dee249030e6063d92071b5aac240">
compiler/ghci/Linker.hs
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<h4>Changes:</h4>
<li id="47f4bea1d308dee249030e6063d92071b5aac240">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/0c544faecaf8dddc8a3df24bbe83e559158fdd93#47f4bea1d308dee249030e6063d92071b5aac240"><strong>compiler/ghci/Linker.hs</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1123" 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">@@ -1123,7 +1123,10 @@ unload_wkr hsc_env keep_linkables pls@PersistentLinkerState{..} = do</td>
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1123
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1123
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<pre style="margin: 0;"> <span id="LC1123" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- We don't do any cleanup when linking objects with the</span></span>
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1124
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1124
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<pre style="margin: 0;"> <span id="LC1124" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- dynamic linker. Doing so introduces extra complexity for</span></span>
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1125
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1125
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<pre style="margin: 0;"> <span id="LC1125" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- not much benefit.</span></span>
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1126
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<pre style="margin: 0;">-<span id="LC1126" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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1126
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<pre style="margin: 0;">+<span id="LC1126" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC1127" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Code unloading currently disabled due to instability.</span></span>
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<pre style="margin: 0;">+<span id="LC1128" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See #16841.</span></span>
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<pre style="margin: 0;">+<span id="LC1129" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">False</span> <span class="c1" style="color: #998; font-style: italic;">-- otherwise</span></span>
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1127
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<td class="diff-line-num new_line" data-linenumber="1130" 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="LC1130" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mapM_</span> <span class="p">(</span><span class="n" style="color: #333;">unloadObj</span> <span class="n" style="color: #333;">hsc_env</span><span class="p">)</span> <span class="p">[</span><span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">DotO</span> <span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">linkableUnlinked</span> <span class="n" style="color: #333;">lnk</span><span class="p">]</span></span>
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1128
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<td class="diff-line-num new_line" data-linenumber="1131" 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">
1131
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<pre style="margin: 0;"> <span id="LC1131" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- The components of a BCO linkable may contain</span></span>
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1129
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<pre style="margin: 0;"> <span id="LC1132" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- dot-o files. Which is very confusing.</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1134" 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">@@ -1131,6 +1134,7 @@ unload_wkr hsc_env keep_linkables pls@PersistentLinkerState{..} = do</td>
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1131
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<pre style="margin: 0;"> <span id="LC1134" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- But the BCO parts can be unlinked just by</span></span>
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<td class="diff-line-num new_line" data-linenumber="1135" 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="LC1135" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- letting go of them (plus of course depopulating</span></span>
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<pre style="margin: 0;"> <span id="LC1136" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- the symbol table which is done in the main body)</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1137" 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="LC1137" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span> <span class="c1" style="color: #998; font-style: italic;">-- see #16841</span></span>
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1134
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1138
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<pre style="margin: 0;"> <span id="LC1138" class="line" lang="haskell"></span>
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1135
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1139
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<pre style="margin: 0;"> <span id="LC1139" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- **********************************************************************</span></span>
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1136
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1140
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<pre style="margin: 0;"> <span id="LC1140" class="line" lang="haskell"></span>
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