[PATCH] D20479: [esan] Extend shadow mapping to cover low libraries

[Derek Bruening via llvm-commits]

bruening created this revision.
bruening added a reviewer: aizatsky.
bruening added subscribers: llvm-commits, eugenis, kcc, zhaoqin, vitalybuka.
Herald added a subscriber: kubabrecka.

Adds support for app libraries starting slightly below 0x7f00'00000000 (the
mmap ASLR range extends down to 0x7efb'f8000000 for reasonable stack
limits) by switching to a shadow mapping offset of 0x1300'00000000.

http://reviews.llvm.org/D20479

Files:
  lib/esan/esan.cpp
  lib/esan/esan_shadow.h
  test/esan/TestCases/mmap-shadow-conflict.c
  test/esan/TestCases/verbose-simple.c

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D20479.57956.patch
Type: text/x-patch
Size: 6387 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20160520/02f574a9/attachment.bin>