[compiler-rt] r220991 - [asan] increase the initial buffer size in caller-callee dumper

[Justin Bogner]

Kostya Serebryany <kcc at google.com> writes:
> Author: kcc
> Date: Fri Oct 31 14:49:46 2014
> New Revision: 220991
>
> URL: http://llvm.org/viewvc/llvm-project?rev=220991&view=rev
> Log:
> [asan] increase the initial buffer size in caller-callee dumper
>
> 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=220991&r1=220990&r2=220991&view=diff
> ==============================================================================
> --- compiler-rt/trunk/lib/sanitizer_common/sanitizer_coverage_libcdep.cc (original)
> +++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_coverage_libcdep.cc Fri Oct 31 14:49:46 2014
> @@ -325,7 +325,7 @@ void CoverageData::DumpCallerCalleePairs
>    auto sym = Symbolizer::GetOrInit();
>    if (!sym)
>      return;
> -  InternalScopedString out(4096 * 16);
> +  InternalScopedString out(32 << 20);

This seems like an odd way to write this number. Do the 32 or the 20
here have some sort of meaning that makes this clearer than 1 << 25?

>    uptr total = 0;
>    for (uptr i = 0; i < max_idx; i++) {
>      uptr *cc_cache = cc_array[i];
>
>
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