It may look more readable like this (no #else): <div><div>#ifndef TSAN_HISTORY_SIZE  // in kibitraces                                                                                                                                                         </div>
<div>#define TSAN_HISTORY_SIZE 8</div><div>#else </div><div>const int kTraceParts = TSAN_HISTORY_SIZE; </div><br><div class="gmail_quote">On Thu, Aug 23, 2012 at 10:26 PM, Dmitry Vyukov <span dir="ltr"><<a href="mailto:dvyukov@google.com" target="_blank">dvyukov@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Author: dvyukov<br>
Date: Thu Aug 23 13:26:03 2012<br>
New Revision: 162456<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=162456&view=rev" target="_blank">http://llvm.org/viewvc/llvm-project?rev=162456&view=rev</a><br>
Log:<br>
tsan: allow to override per-thread event trace size<br>
useful if you don't see the second stack trace<br>
<br>
Modified:<br>
    compiler-rt/trunk/lib/tsan/rtl/tsan_trace.h<br>
<br>
Modified: compiler-rt/trunk/lib/tsan/rtl/tsan_trace.h<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_trace.h?rev=162456&r1=162455&r2=162456&view=diff" target="_blank">http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_trace.h?rev=162456&r1=162455&r2=162456&view=diff</a><br>

==============================================================================<br>
--- compiler-rt/trunk/lib/tsan/rtl/tsan_trace.h (original)<br>
+++ compiler-rt/trunk/lib/tsan/rtl/tsan_trace.h Thu Aug 23 13:26:03 2012<br>
@@ -19,9 +19,13 @@<br>
<br>
 namespace __tsan {<br>
<br>
+const int kTracePartSize = 16 * 1024;<br>
+#ifndef TSAN_HISTORY_SIZE  // in kibitraces<br>
 const int kTraceParts = 8;<br>
-const int kTraceSize = 128*1024;<br>
-const int kTracePartSize = kTraceSize / kTraceParts;<br>
+#else<br>
+const int kTraceParts = TSAN_HISTORY_SIZE * 1024 / kTracePartSize;<br>
+#endif<br>
+const int kTraceSize = kTracePartSize * kTraceParts;<br>
<br>
 // Must fit into 3 bits.<br>
 enum EventType {<br>
<br>
<br>
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</blockquote></div><br></div>