4 Commits

Author	SHA1	Message	Date
Rui Ueyama	035025c0da	Remove trailing whitespace characters. ... llvm-svn: 235897	2015-04-27 17:18:04 +00:00
Nick Kledzik	9133f8c76d	[mach-o] Support missing MH_SUBSECTIONS_VIA_SYMBOLS ... All compiler generated mach-o object files are marked with MH_SUBSECTIONS_VIA_SYMBOLS. But hand written assembly files need to opt-in if they are written correctly. The flag means the linker can break up a sections at symbol addresses and dead strip or re-order functions. This change recognizes object files without the flag and marks its atoms as not dead strippable and adds a layout-after chain of references so that the atoms cannot be re-ordered. llvm-svn: 220348	2014-10-21 23:45:37 +00:00
Nick Kledzik	2d432353ba	[mach-o] implement more x86 and x86_64 relocation support ... Add support for adding section relocations in -r mode. Enhance the test cases which validate the parsing of .o files to also round trip. They now write out the .o file and then parse that, verifying all relocations survived the round trip. llvm-svn: 213333	2014-07-17 23:16:21 +00:00
Nick Kledzik	3f69076278	[mach-o] refactor x86_64 relocation handling. ... This is first step in reworking how mach-o relocations are processed. The existing KindHandler is going to become a delgate/helper object for processing architecture specific references. The KindHandler knows how to convert mach-o relocations into References and back, as well, as fixing up the content the relocation is on. One of the messy things about mach-o relocations is that they sometime come in pairs, but the pairs still convert to one lld::Reference. So, the conversion has to detect pairs (arch specific) and change the stride. llvm-svn: 211921	2014-06-27 18:25:01 +00:00