[compiler-rt] r224855 - [asan] Bump coverage size limit on 32-bit platforms.

[Evgeniy Stepanov]

Author: eugenis
Date: Fri Dec 26 07:54:11 2014
New Revision: 224855

URL: http://llvm.org/viewvc/llvm-project?rev=224855&view=rev
Log:
[asan] Bump coverage size limit on 32-bit platforms.

This increases the limit from 4M locations to 16M, reserving
64Mb virtual memory. Chrome has >5M unique coverage locations with coverage=3.

Modified:
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_coverage_libcdep.cc

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_coverage_libcdep.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_coverage_libcdep.cc?rev=224855&r1=224854&r2=224855&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_coverage_libcdep.cc (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_coverage_libcdep.cc Fri Dec 26 07:54:11 2014
@@ -87,7 +87,7 @@ class CoverageData {
  private:
   // Maximal size pc array may ever grow.
   // We MmapNoReserve this space to ensure that the array is contiguous.
-  static const uptr kPcArrayMaxSize = FIRST_32_SECOND_64(1 << 22, 1 << 27);
+  static const uptr kPcArrayMaxSize = FIRST_32_SECOND_64(1 << 24, 1 << 27);
   // The amount file mapping for the pc array is grown by.
   static const uptr kPcArrayMmapSize = 64 * 1024;