Ryan Govostes 642853b90e [asan] Support dead code stripping on Mach-O platforms ...

On OS X El Capitan and iOS 9, the linker supports a new section
attribute, live_support, which allows dead stripping to remove dead
globals along with the ASAN metadata about them.

With this change __asan_global structures are emitted in a new
__DATA,__asan_globals section on Darwin.

Additionally, there is a __DATA,__asan_liveness section with the
live_support attribute. Each entry in this section is simply a tuple
that binds together the liveness of a global variable and its ASAN
metadata structure. Thus the metadata structure will be alive if and
only if the global it references is also alive.

Review: http://reviews.llvm.org/D16737


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264645 91177308-0d34-0410-b5e6-96231b3b80d8

2016-03-28 20:28:57 +00:00

..

AddressSanitizer.cpp

[asan] Support dead code stripping on Mach-O platforms

2016-03-28 20:28:57 +00:00

BoundsChecking.cpp

Remove PreserveNames template parameter from IRBuilder

2016-03-13 21:05:13 +00:00

CFGMST.h

[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021)

2015-12-09 18:08:16 +00:00

CMakeLists.txt

Move SafeStack to CodeGen.

2016-01-27 16:53:42 +00:00

DataFlowSanitizer.cpp

[DFSan] Remove an overly aggressive assert reported in PR26068.

2016-03-07 14:05:09 +00:00

GCOVProfiling.cpp

[GCOV] Avoid emitting profile arcs for module and skeleton CUs

2016-01-21 17:04:42 +00:00

InstrProfiling.cpp

[PGO] Remove redundant counter copies for avail_extern functions.

2016-02-27 23:11:30 +00:00

Instrumentation.cpp

Move SafeStack to CodeGen.

2016-01-27 16:53:42 +00:00

LLVMBuild.txt

[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021)

2015-12-09 18:08:16 +00:00

MaximumSpanningTree.h

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

MemorySanitizer.cpp

[msan] Add a comment with a bug link.

2016-03-16 17:39:17 +00:00

PGOInstrumentation.cpp

[PGO] Don't set the function hotness attribute when populating counters

2016-03-28 17:08:56 +00:00

SanitizerCoverage.cpp

[sancov] code readability improvement.

2016-03-23 23:15:03 +00:00

ThreadSanitizer.cpp

[tsan] Add support for pointer typed atomic stores, loads, and cmpxchg

2016-03-07 23:16:23 +00:00