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Fangrui Song 6fcac4f990 [MC] Set sh_link to 0 if the associated symbol is undefined
Part of https://bugs.llvm.org/show_bug.cgi?id=41734

LTO can drop externally available definitions. Such AssociatedSymbol is
not associated with a symbol. ELFWriter::writeSection() will assert.

Allow a SHF_LINK_ORDER section to have sh_link=0.

We need to give sh_link a syntax, a literal zero in the linked-to symbol
position, e.g. `.section name,"ao",@progbits,0`

Reviewed By: pcc

Differential Revision: https://reviews.llvm.org/D72899
2020-08-03 13:43:48 -07:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings [Bindings] Remove ipc_propagation. 2020-08-02 22:36:53 +01:00
cmake [cmake] Make MSVC generate appropriate __cplusplus macro definition 2020-08-03 12:52:43 +03:00
docs Recommit "[IPConstProp] Remove and move tests to SCCP." 2020-08-02 22:23:54 +01:00
examples [llvm][examples][SimplifyCFG] Fix pass's IR changed reporting 2020-07-27 13:39:58 -06:00
include [X86] support .nops directive 2020-08-03 11:50:56 -07:00
lib [MC] Set sh_link to 0 if the associated symbol is undefined 2020-08-03 13:43:48 -07:00
projects Add few docs and implementation of strcpy and strcat. 2019-10-04 17:30:54 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake] Bump CMake minimum version to 3.13.4 2020-07-22 14:25:07 -04:00
test [MC] Set sh_link to 0 if the associated symbol is undefined 2020-08-03 13:43:48 -07:00
tools [llvm-jitlink] Add support for static archives and MachO universal archives. 2020-08-03 12:58:00 -07:00
unittests [PGO] Extend the value profile buckets for mem op sizes. 2020-08-03 11:04:32 -07:00
utils [gn build] Port f78f509c758 2020-08-03 18:05:15 +00:00
.clang-format
.clang-tidy - Update .clang-tidy to ignore parameters of main like functions for naming violations in clang and llvm directory 2020-01-31 16:49:45 +00:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore [clangd] Store index in '.cache/clangd/index' instead of '.clangd/index' 2020-07-07 14:53:45 +02:00
CMakeLists.txt [CMake] Bump CMake minimum version to 3.13.4 2020-07-22 14:25:07 -04:00
CODE_OWNERS.TXT Make myself code owner of InferAddressSpaces 2020-06-08 21:26:01 -04:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT [test commit] Add my name to the CREDITS.TXT 2020-07-24 12:05:53 -05:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

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