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More MSan/ASan annotations.

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This change lets us bootstrap LLVM/Clang under ASan and MSan. It contains
fixes for 2 issues:

- X86JIT reads return address from stack, which MSan does not know is
  initialized.
- bugpoint tests run binaries with RLIMIT_AS. This does not work with certain
  Sanitizers.

We are no longer including config.h in Compiler.h with this change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174306 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evgeniy Stepanov
2013-02-04 07:03:24 +00:00
parent f839eed5ea
commit 9c02a27604
6 changed files with 24 additions and 9 deletions
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5
lib/Support/Unix/Program.inc
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@ -17,6 +17,7 @@
//===----------------------------------------------------------------------===//
#include "Unix.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/FileSystem.h"
#include <llvm/Config/config.h>
#if HAVE_SYS_STAT_H
@ -164,12 +165,16 @@ static void SetMemoryLimits (unsigned size)
setrlimit (RLIMIT_RSS, &r);
#endif
#ifdef RLIMIT_AS // e.g. NetBSD doesn't have it.
// Don't set virtual memory limit if built with any Sanitizer. They need 80Tb
// of virtual memory for shadow memory mapping.
#if !LLVM_MEMORY_SANITIZER_BUILD && !LLVM_ADDRESS_SANITIZER_BUILD
// Virtual memory.
getrlimit (RLIMIT_AS, &r);
r.rlim_cur = limit;
setrlimit (RLIMIT_AS, &r);
#endif
#endif
#endif
}
bool