[llvm-commits] [compiler-rt] r167462 - /compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc

[Alexey Samsonov]

On Tue, Nov 6, 2012 at 7:39 PM, Dmitry Vyukov <dvyukov at google.com> wrote:

> Author: dvyukov
> Date: Tue Nov  6 09:39:16 2012
> New Revision: 167462
>
> URL: http://llvm.org/viewvc/llvm-project?rev=167462&view=rev
> Log:
> tsan: better diagnostics for failed mmap()
>
> Modified:
>     compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc
>
> Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc
> URL:
> http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc?rev=167462&r1=167461&r2=167462&view=diff
>
> ==============================================================================
> --- compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc (original)
> +++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc Tue Nov  6
> 09:39:16 2012
> @@ -74,10 +74,14 @@
>  }
>
>  void *MmapFixedNoReserve(uptr fixed_addr, uptr size) {
> -  return internal_mmap((void*)fixed_addr, size,
> +  void *p = internal_mmap((void*)fixed_addr, size,
>                        PROT_READ | PROT_WRITE,
>                        MAP_PRIVATE | MAP_ANON | MAP_FIXED | MAP_NORESERVE,
>                        -1, 0);
> +  if (p != (void*)fixed_addr)
> +    Report("ERROR: Failed to deallocate 0x%zx (%zd) bytes at address %p
> (%d)\n",
> +           size, size, fixed_addr, errno);
>

deallocate?


> +  return p;
>  }
>
>  void *Mprotect(uptr fixed_addr, uptr size) {
>
>
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-- 
Alexey Samsonov, MSK
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