Evgeniy Stepanov 844f5828e9 [msan] Fix origins in realloc.
Fixes 2 issues in origins arising from realloc() calls:
 * In the in-place grow case origin for the new memory is not set at all.
 * In the copy-realloc case __msan_memcpy is used, which unwinds stack from
   inside the MSan runtime. This does not generally work (as we may be built
   w/o frame pointers), and produces "bad" stack trace anyway, with several
   uninteresting (internal) frames on top.

This change also makes realloc() honor "zeroise" and "poison_in_malloc" flags.

See https://code.google.com/p/memory-sanitizer/issues/detail?id=73.

llvm-svn: 226674
2015-01-21 16:48:29 +00:00
..
2015-01-21 02:09:16 +00:00
2015-01-21 16:48:29 +00:00
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Compiler-RT
================================

This directory and its subdirectories contain source code for the compiler
support routines.

Compiler-RT is open source software. You may freely distribute it under the
terms of the license agreement found in LICENSE.txt.

================================