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Reid Kleckner 39950b0f92 [asan] Create a .ASAN$G(A-Z) section for global registration 
Summary:
The expectation is that new instrumented code will add global variable
metadata to the .ASAN$GL section, and we will use this new code to
iterate over it.

This technique seems to break when using incremental linking, which
seems to align every global to a 256 byte boundary. Presumably this is
so that it can incrementally cope with global changing size. Clang
already passes -incremental:no as a linker flag when you invoke it to do
the link step.

The two tests added for this feature will fail until the LLVM
instrumentation change in D26770 lands, so they are marked XFAIL for
now.

Reviewers: pcc, kcc, mehdi_amini, kubabrecka

Subscribers: llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D26771

llvm-svn: 287246
 		2016-11-17 19:02:53 +00:00
..
BlocksRuntime Move tests for BlocksRuntime and builtins to corresponding directories under test/ 2014-02-14 09:47:31 +00:00
asan [asan] Create a .ASAN$G(A-Z) section for global registration 2016-11-17 19:02:53 +00:00
builtins build: give aliases the same visibility 2016-10-28 23:37:50 +00:00
cfi [compiler-rt] Do not introduce __sanitizer namespace globally 2016-09-15 21:02:18 +00:00
dfsan [compiler-rt] Do not introduce __sanitizer namespace globally 2016-09-15 21:02:18 +00:00
esan [esan] Fix ESan test failure on Debian Sid bot 2016-10-07 20:53:35 +00:00
interception [asan] Don't assert that a target is within 2GB on 32-bit Windows 2016-11-15 18:29:17 +00:00
lsan [asan/lsan] Avoid possible deadlock in dynamic ASan runtime thread initialization. 2016-10-28 06:49:53 +00:00
msan Don't use internal symbolizer if we are in process of reporting Out-of-Memory. 2016-09-29 23:00:54 +00:00
profile [profile] Mark lprofCurFilename as COMPILER_RT_WEAK 2016-10-18 00:02:28 +00:00
safestack [compiler-rt] Do not introduce __sanitizer namespace globally 2016-09-15 21:02:18 +00:00
sanitizer_common adding operator* to help working with primitive values 2016-11-16 19:35:37 +00:00
scudo [scudo] Lay the foundation for 32-bit support 2016-10-26 16:16:58 +00:00
stats stats: define WIN32_LEAN_AND_MEAN when including windows.h 2016-08-30 20:15:46 +00:00
tsan [tsan] Call pthread interceptors directly in TSan RTL unit tests 2016-11-15 21:00:55 +00:00
ubsan [ubsan] More 0 -> nullptr conversions (NFC) 2016-10-06 23:41:57 +00:00
xray [XRay][compiler-rt] Attempt to fix ARM buildbots after r287068 2016-11-16 09:32:23 +00:00
CMakeLists.txt build: allow building a specific set of sanitizers 2016-08-19 15:13:21 +00:00