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

Derek Bruening via llvm-commits llvm-commits at lists.llvm.org
Fri May 20 11:12:09 PDT 2016


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

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