Rui Ueyama e5416ec2d2 Add a fallback mechanism for undefined atom. ... In COFF, an undefined symbol can have up to one alternative name. If a symbol is resolved by its regular name, then it's linked normally. If a symbol is not found in any input files, all references to the regular name are resolved using the alternative name. If the alternative name is not found, it's a link error. This mechanism is called "weak externals". To support this mechanism, I added a new member function fallback() to undefined atom. If an undefined atom has the second name, fallback() returns a new undefined atom that should be used instead of the original one to resolve undefines. If it does not have the second name, the function returns nullptr. Differential Revision: http://llvm-reviews.chandlerc.com/D1550 llvm-svn: 190625		2013-09-12 19:14:05 +00:00
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Driver	Add support for --sysroot.	2013-09-03 16:29:02 +00:00
Unit	[tests] Update to use lit_config and lit package, as appropriate.	2013-08-09 18:51:17 +00:00
core	Add a fallback mechanism for undefined atom.	2013-09-12 19:14:05 +00:00
darwin	This is my Driver refactoring patch.	2013-04-04 18:59:24 +00:00
elf	[lld][tests] Fix buildbot failure on darwin	2013-09-12 18:10:20 +00:00
pecoff	[lld][tests] Fix buildbot failure on darwin	2013-09-12 18:10:20 +00:00
CMakeLists.txt	Add llc to check-lld deps. We use the command in lit.cfg.	2013-09-02 23:26:00 +00:00
linker-script.test	[lld][ELF] Add parser for linker script ENTRY command	2013-06-03 18:05:21 +00:00
lit.cfg	[tests] Update to use lit_config and lit package, as appropriate.	2013-08-09 18:51:17 +00:00
lit.site.cfg.in	[tests] Update to use lit_config and lit package, as appropriate.	2013-08-09 18:51:17 +00:00