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226bbc3937
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Evgeniy Stepanov 226bbc3937 [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).

This is a second re-land of r298158. This time, this feature is
limited to -fdata-sections builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301587 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-27 20:27:27 +00:00
bindings [go bindings] Rmove duplicated conversion function definitions after r300843. 2017-04-20 19:06:11 +00:00
cmake [LLVM][MIPS] Fix different definition of off_t in LLDB and LLVM. 2017-04-24 10:36:46 +00:00
docs Sync with changes from r300825 in clang. 2017-04-27 17:23:53 +00:00
examples Module::getOrInsertFunction is using C-style vararg instead of variadic templates. 2017-04-11 15:01:18 +00:00
include [asan] Fix dead stripping of globals on Linux. 2017-04-27 20:27:27 +00:00
lib [asan] Fix dead stripping of globals on Linux. 2017-04-27 20:27:27 +00:00
projects [cmake] Include openmp with add_llvm_external_project 2017-03-07 18:54:17 +00:00
resources
runtimes [CMake][runtimes] Use -nodefaultlibs for the runtimes build 2017-04-13 21:29:03 +00:00
test [asan] Fix dead stripping of globals on Linux. 2017-04-27 20:27:27 +00:00
tools [llvm-readobj] Dump COFF Resources section. 2017-04-27 19:38:38 +00:00
unittests Limit disabling of warnings emitted from r301571 by checking __GNUC__. 2017-04-27 18:05:29 +00:00
utils Fixed assert message to correctly refer to MRMSrcReg4VOp3Frm/MRMSrcMeg4VOp3Frm. 2017-04-27 14:25:04 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format
.clang-tidy
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt Allow suppressing host and target info in VersionPrinter 2017-04-19 00:03:36 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take code ownership of instruction scheduling. 2017-03-10 18:34:37 +00:00
configure
CREDITS.TXT CODE_OWNERS: Take code ownership of instruction scheduling. 2017-03-10 18:34:37 +00:00
LICENSE.TXT Bump year to 2017 in LICENSE.txt 2017-01-12 18:02:42 +00:00
llvm.spec.in
LLVMBuild.txt
README.txt Test commit. Added a blank line. 2017-03-06 20:45:33 +00:00
RELEASE_TESTERS.TXT Update the release tester for MIPS. NFC. 2017-01-17 11:00:28 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.