llvm-project/compiler-rt
Reid Kleckner d092107b0e [asan/win] Add init hooks to .CRT$XLAB
Summary:
User applications may register hooks in the .CRT$XL* callback list,
which is called very early by the loader. This is very common in
Chromium:
https://cs.chromium.org/search/?q=CRT.XL&sq=package:chromium&type=cs

This has flown under the radar for a long time because the loader
appears to catch exceptions originating from these callbacks. It's a
real problem when you're debugging an asan application, though, since it
makes the program crash early.

The solution is to add our own callback to this list, and sort it very
early in the list like we do elsewhere. Also add a test with such an
instrumented callback, and test that it gets called with asan.

Reviewers: etienneb

Subscribers: llvm-commits, kubabrecka

Differential Revision: https://reviews.llvm.org/D26404

llvm-svn: 286290
2016-11-08 20:45:45 +00:00
..
cmake Remove a VS 2012 workaround, we require 2015 now. 2016-10-25 18:48:43 +00:00
docs [sanitizers] Make it possible to XFAIL on the effective target, not just the default. 2016-08-09 11:50:53 +00:00
include [compiler-rt][XRay] Support tail call sleds 2016-10-13 23:56:54 +00:00
lib [asan/win] Add init hooks to .CRT$XLAB 2016-11-08 20:45:45 +00:00
test [asan/win] Add init hooks to .CRT$XLAB 2016-11-08 20:45:45 +00:00
unittests Replace hardcoded comment at 'lit.site.cfg.in' 2016-04-16 07:03:45 +00:00
www Update references to new lists.llvm.org mailing lists. 2015-08-05 03:58:00 +00:00
.arcconfig Upgrade all the .arcconfigs to https. 2016-07-14 13:15:37 +00:00
.gitignore
CMakeLists.txt [compiler-rt] Exclude compiler-rt from using -fmodules when LLVM_ENABLE_MODULES=On 2016-10-08 09:01:27 +00:00
CODE_OWNERS.TXT [sanitizers] remove earthdok@ from owners 2016-05-18 18:52:18 +00:00
CREDITS.TXT Add Guan-Hong Liu. 2014-06-16 08:38:19 +00:00
LICENSE.TXT Update copyright year to 2016. 2016-03-30 22:38:50 +00:00
README.txt

README.txt

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.

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