Evgeniy Stepanov a82d7906c2 [asan] Fix dead stripping of globals on Linux. ...

Use a combination of !associated, comdat, @llvm.compiler.used and
custom sections to allow dead stripping of globals and their asan
metadata. Sometimes.

Currently this works on LLD, which supports SHF_LINK_ORDER with
sh_link pointing to the associated section.

This also works on BFD, which seems to treat comdats as
all-or-nothing with respect to linker GC. There is a weird quirk
where the "first" global in each link is never GC-ed because of the
section symbols.

At this moment it does not work on Gold (as in the globals are never
stripped).

Differential Revision: https://reviews.llvm.org/D30121

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298158 91177308-0d34-0410-b5e6-96231b3b80d8

2017-03-17 22:17:29 +00:00

..

AddDiscriminators.h

Consistently use FunctionAnalysisManager

2016-08-09 00:28:15 +00:00

ASanStackFrameLayout.h

[asan] Simplify calculation of stack frame layout extraction calculation of stack description into separate function.

2016-10-18 23:29:52 +00:00

BasicBlockUtils.h

[Transforms/Utils] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-01-14 00:32:38 +00:00

BreakCriticalEdges.h

[PM] Port BreakCriticalEdges to the new PM.

2016-07-22 18:04:25 +00:00

BuildLibCalls.h

[TLI] Unify LibFunc attribute inference. NFCI.

2016-04-27 19:04:40 +00:00

BypassSlowDivision.h

Clarify that the bypassSlowDivision optimization operates on a single BB [v2]

2016-01-04 23:18:58 +00:00

Cloning.h

[JumpThreading] Re-enable JumpThreading for guards

2017-02-17 04:21:14 +00:00

CmpInstAnalysis.h

move decomposeBitTestICmp() to Transforms/Utils; NFC

2016-07-20 17:18:45 +00:00

CodeExtractor.h

CodeExtractor : Add ability to preserve profile data.

2016-08-02 02:15:45 +00:00

CtorUtils.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

EscapeEnumerator.h

[tsan] Add support for C++ exceptions into TSan (call __tsan_func_exit during unwinding), LLVM part

2016-11-14 21:41:13 +00:00

Evaluator.h

Transforms: Move GlobalOpt's Evaluator to Utils where it can be reused.

2016-02-03 02:51:00 +00:00

FunctionComparator.h

[IR] Fix some Clang-tidy modernize-use-equals-delete and Include What You Use warnings; other minor fixes (NFC).

2016-12-06 22:00:57 +00:00

FunctionImportUtils.h

FunctionImport: Use IRMover directly.

2017-02-03 16:56:27 +00:00

GlobalStatus.h

Fix modules buildbots broken in r291983.

2017-01-14 01:07:05 +00:00

ImportedFunctionsInliningStatistics.h

Do a sweep over move ctors and remove those that are identical to the default.

2016-10-20 12:20:28 +00:00

IntegerDivision.h

Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)

2015-06-23 09:49:53 +00:00

LCSSA.h

Consistently use FunctionAnalysisManager

2016-08-09 00:28:15 +00:00

LibCallsShrinkWrap.h

Conditionally eliminate library calls where the result value is not used

2016-10-18 21:36:27 +00:00

Local.h

Salvage debug info from instructions about to be deleted

2017-03-16 21:14:09 +00:00

LoopSimplify.h

Revert @llvm.assume with operator bundles (r289755-r289757)

2016-12-19 08:22:17 +00:00

LoopUtils.h

[Transforms/Utils] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-01-14 00:32:38 +00:00

LoopVersioning.h

Remove some 'const' specifiers that do nothing but prevent moving the argument.

2016-05-29 10:46:35 +00:00

LowerInvoke.h

[PM] Port LowerInvoke to the new pass manager

2016-08-12 17:28:27 +00:00

LowerMemIntrinsics.h

LowerMemIntrinsics: Fix include guard

2017-02-09 23:43:28 +00:00

Mem2Reg.h

Consistently use FunctionAnalysisManager

2016-08-09 00:28:15 +00:00

MemorySSA.h

Fix all these headers to properly mark the doxygen comments.

2017-03-10 20:44:39 +00:00

MemorySSAUpdater.h

Move updating functions to MemorySSAUpdater.

2017-02-22 22:19:55 +00:00

ModuleUtils.h

[asan] Fix dead stripping of globals on Linux.

2017-03-17 22:17:29 +00:00

NameAnonGlobals.h

[Transforms/Utils] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-01-14 00:32:38 +00:00

PredicateInfo.h

Fix all these headers to properly mark the doxygen comments.

2017-03-10 20:44:39 +00:00

PromoteMemToReg.h

Revert @llvm.assume with operator bundles (r289755-r289757)

2016-12-19 08:22:17 +00:00

SanitizerStats.h

Introduce sanstats tool and llvm::CreateSanitizerStatReport function.

2016-01-16 00:31:11 +00:00

SimplifyIndVar.h

[Transforms/Utils] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-01-14 00:32:38 +00:00

SimplifyInstructions.h

Consistently use FunctionAnalysisManager

2016-08-09 00:28:15 +00:00

SimplifyLibCalls.h

SimplifyLibCalls: Replace more unary libcalls with intrinsics

2017-01-23 23:55:08 +00:00

SplitModule.h

Move instances of std::function.

2016-06-12 16:13:55 +00:00

SSAUpdater.h

[Target, Transforms] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-01-18 00:57:48 +00:00

SSAUpdaterImpl.h

Retire llvm::alignOf in favor of C++11 alignof.

2016-10-20 15:02:18 +00:00

SymbolRewriter.h

[Transforms/Utils] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-01-14 00:32:38 +00:00

UnifyFunctionExitNodes.h

[Transforms/Utils] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-01-14 00:32:38 +00:00

UnrollLoop.h

[LoopUnrolling] Re-prioritize Peeling and Partial unrolling

2017-03-03 18:19:10 +00:00

ValueMapper.h

[Transforms/Utils] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

2017-01-14 00:32:38 +00:00

VNCoercion.h

VNCoercion: Make the function signatures all consistent

2017-03-11 00:51:01 +00:00