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<h3>
Daneel S. Yaitskov pushed to branch wip/T17949
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/480b208d78de5e236bd7e4fc682c83f05077b270">480b208d</a></strong>
<div>
<span>by Daneel Yaitskov</span>
<i>at 2020-05-28T21:16:26-07:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">T17949 try @maoe way
</pre>
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<h4>4 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#40f83a2cddcbc1f8190b0551eb572ccf4ea88cc9">
includes/Rts.h
</a>
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<li class="file-stats">
<a href="#cbecf35546dee344ca6fb2e73c7515f07e868d0f">
libraries/base/Debug/Trace.hs
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<li class="file-stats">
<a href="#050d739b5c42d009648d099fb66bae809e83482e">
rts/Trace.c
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<li class="file-stats">
<a href="#af7520a7c19cb7a894a90a944c97a4ed95f12b78">
rts/Trace.h
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<h4>Changes:</h4>
<li id="40f83a2cddcbc1f8190b0551eb572ccf4ea88cc9">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/480b208d78de5e236bd7e4fc682c83f05077b270#40f83a2cddcbc1f8190b0551eb572ccf4ea88cc9"><strong>includes/Rts.h</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">@@ -57,10 +57,8 @@ extern "C" {</td>
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<pre style="margin: 0;"> <span id="LC57" class="line" lang="c"><span class="c1" style="color: #998; font-style: italic;">// library.</span></span>
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<pre style="margin: 0;"> <span id="LC58" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if defined(HAS_VISIBILITY_HIDDEN)</span></span>
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<pre style="margin: 0;"> <span id="LC59" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define RTS_PRIVATE  GNUC3_ATTRIBUTE(visibility("hidden"))</span></span>
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<pre style="margin: 0;">-<span id="LC60" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define RTS_DEFAULT  GNUC3_ATTRIBUTE(visibility("default"))</span></span>
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<pre style="margin: 0;"> <span id="LC60" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#else</span></span>
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<pre style="margin: 0;"> <span id="LC61" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define RTS_PRIVATE  </span><span class="cm" style="color: #998; font-style: italic;">/* disabled: RTS_PRIVATE */</span></span>
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<pre style="margin: 0;">-<span id="LC63" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define RTS_DEFAULT</span></span>
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<pre style="margin: 0;"> <span id="LC62" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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<pre style="margin: 0;"> <span id="LC64" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if __GNUC__ >= 4</span></span>
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<li id="cbecf35546dee344ca6fb2e73c7515f07e868d0f">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/480b208d78de5e236bd7e4fc682c83f05077b270#cbecf35546dee344ca6fb2e73c7515f07e868d0f"><strong>libraries/base/Debug/Trace.hs</strong></a>
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<pre style="margin: 0;"> <span id="LC47" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">System.IO.Unsafe</span></span>
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<pre style="margin: 0;">-<span id="LC49" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;"><span class="idiff left right">Foreign</span></span></span>
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<pre style="margin: 0;">+<span id="LC49" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;"><span class="idiff left">Control.Monad</span></span><span class="idiff"> </span><span class="p"><span class="idiff">((</span></span><span class="o" style="font-weight: 600;"><span class="idiff"><$!></span></span><span class="p"><span class="idiff right">))</span></span></span>
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<pre style="margin: 0;"> <span id="LC50" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Foreign.C.String</span></span>
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<pre style="margin: 0;">-<span id="LC51" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Foreign.C.Types</span></span>
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<pre style="margin: 0;"> <span id="LC51" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Base</span></span>
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<pre style="margin: 0;"> <span id="LC52" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="k" style="font-weight: 600;">qualified</span> <span class="nn" style="color: #555;">GHC.Foreign</span></span>
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<pre style="margin: 0;"> <span id="LC53" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.IO.Encoding</span></span>
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<pre style="margin: 0;"> <span id="LC54" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Ptr</span></span>
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<pre style="margin: 0;">-<span id="LC56" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.R<span class="idiff left right">eal</span></span></span>
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<pre style="margin: 0;">+<span id="LC55" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.R<span class="idiff left right">TS.Flags</span></span></span>
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<pre style="margin: 0;"> <span id="LC56" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Show</span></span>
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<pre style="margin: 0;"> <span id="LC57" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Stack</span></span>
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<pre style="margin: 0;"> <span id="LC58" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.List</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">null</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">partition</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="76" 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>
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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">@@ -76,7 +75,8 @@ import Data.List (null, partition)</td>
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<pre style="margin: 0;"> <span id="LC75" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Some implementations of these functions may decorate the string that\'s</span></span>
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<pre style="margin: 0;"> <span id="LC76" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- output to indicate that you\'re tracing.</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC77" class="line" lang="haskell"></span>
</pre>
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<pre style="margin: 0;">-<span id="LC79" class="line" lang="haskell"><span class="n" style="color: #333;">foreign</span> <span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">ccall</span> <span class="s" style="color: #d14;">"&TRACE_user"</span> <span class="n" style="color: #333;">traceUser</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ptr</span> <span class="kt" style="color: #458; font-weight: 600;">CInt</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC78" class="line" lang="haskell"><span class="n" style="color: #333;">userTracingEnabled</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC79" class="line" lang="haskell"><span class="n" style="color: #333;">userTracingEnabled</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unsafeDupablePerformIO</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">user</span> <span class="o" style="font-weight: 600;"><$!></span> <span class="n" style="color: #333;">inline</span> <span class="n" style="color: #333;">getTraceFlags</span></span>
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<pre style="margin: 0;"> <span id="LC80" class="line" lang="haskell"></span>
</pre>
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<pre style="margin: 0;"> <span id="LC81" class="line" lang="haskell"><span class="cd">-- | The 'whenEventlog' function runs the argument action</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC82" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- if eventlogging (+RTS -l) is enabled.</span></span>
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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">@@ -85,8 +85,7 @@ foreign import ccall "&TRACE_user" traceUser :: Ptr CInt</td>
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<pre style="margin: 0;"> <span id="LC85" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE whenEventlog #-}</span></span>
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<pre style="margin: 0;"> <span id="LC86" class="line" lang="haskell"><span class="n" style="color: #333;">whenEventlog</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;"> <span id="LC87" class="line" lang="haskell"><span class="n" style="color: #333;">whenEventlog</span> <span class="n" style="color: #333;">logAction</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span></span>
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<pre style="margin: 0;">-<span id="LC88" class="line" lang="haskell">  <span class="n" style="color: #333;">ee</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">peek</span> <span class="n" style="color: #333;">traceUser</span></span>
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<pre style="margin: 0;">-<span id="LC89" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">if</span> <span class="mi" style="color: #099;">0</span> <span class="o" style="font-weight: 600;"><</span> <span class="p">(</span><span class="n" style="color: #333;">fromIntegral</span> <span class="n" style="color: #333;">ee</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Int</span><span class="p">)</span></span>
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<td class="diff-line-num new old_line" data-linenumber="90" 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="LC88" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">userTracingEnabled</span></span>
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<pre style="margin: 0;"> <span id="LC89" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">logAction</span></span>
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<td class="diff-line-num old_line" data-linenumber="91" 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="LC90" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;"> <span id="LC91" class="line" lang="haskell"></span>
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</li>
<li id="050d739b5c42d009648d099fb66bae809e83482e">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/480b208d78de5e236bd7e4fc682c83f05077b270#050d739b5c42d009648d099fb66bae809e83482e"><strong>rts/Trace.c</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="33" 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">@@ -33,9 +33,7 @@ int TRACE_gc;</td>
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<pre style="margin: 0;"> <span id="LC33" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_nonmoving_gc</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC34" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_spark_sampled</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC35" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_spark_full</span><span class="p">;</span></span>
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<pre style="margin: 0;">-<span id="LC36" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif </span><span class="cm" style="color: #998; font-style: italic;">/* TRACING */</span></span>
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<td class="diff-line-num old old_line" data-linenumber="37" 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="LC37" class="line" lang="c"><span class="n" style="color: #333;">RTS_DEFAULT</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_user</span><span class="p">;</span> <span class="c1" style="color: #998; font-style: italic;">// used in Debug.Trace</span></span>
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<pre style="margin: 0;">-<span id="LC38" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if defined(TRACING)</span></span>
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<pre style="margin: 0;">+<span id="LC36" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_user</span><span class="p">;</span></span>
</pre>
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<pre style="margin: 0;"> <span id="LC37" class="line" lang="c"><span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_cap</span><span class="p">;</span></span>
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40
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<td class="diff-line-num new_line" data-linenumber="38" 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">
38
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<pre style="margin: 0;"> <span id="LC38" class="line" lang="c"></span>
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41
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<td class="diff-line-num new_line" data-linenumber="39" 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="LC39" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if defined(THREADED_RTS)</span></span>
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</li>
<li id="af7520a7c19cb7a894a90a944c97a4ed95f12b78">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/480b208d78de5e236bd7e4fc682c83f05077b270#af7520a7c19cb7a894a90a944c97a4ed95f12b78"><strong>rts/Trace.h</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="71" 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="71" 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">@@ -71,7 +71,7 @@ extern int TRACE_sched;</td>
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<td class="diff-line-num old_line" data-linenumber="71" 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="LC71" class="line" lang="c"><span class="k" style="font-weight: 600;">extern</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_gc</span><span class="p">;</span></span>
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<td class="diff-line-num old_line" data-linenumber="72" 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="72" 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="LC72" class="line" lang="c"><span class="k" style="font-weight: 600;">extern</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_spark_sampled</span><span class="p">;</span></span>
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<td class="diff-line-num old_line" data-linenumber="73" 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="LC73" class="line" lang="c"><span class="k" style="font-weight: 600;">extern</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_spark_full</span><span class="p">;</span></span>
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<td class="diff-line-num old old_line" data-linenumber="74" 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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<td class="diff-line-num new_line old" data-linenumber="74" 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="LC74" class="line" lang="c"></span>
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<td class="diff-line-num new old_line" data-linenumber="75" 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="74" 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="LC74" class="line" lang="c"><span class="cm" style="color: #998; font-style: italic;">/* extern int TRACE_user; */</span>  <span class="c1" style="color: #998; font-style: italic;">// only used in Trace.c</span></span>
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<td class="diff-line-num old_line" data-linenumber="75" 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="LC75" class="line" lang="c"><span class="k" style="font-weight: 600;">extern</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_cap</span><span class="p">;</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="76" 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="76" 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="LC76" class="line" lang="c"><span class="k" style="font-weight: 600;">extern</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">TRACE_nonmoving_gc</span><span class="p">;</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="77" 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">
77
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<td class="diff-line-num new_line" data-linenumber="77" 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="LC77" class="line" lang="c"></span>
</pre>
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