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Author SHA1 Message Date
George Rimar c191acf097 [ELF] - Implemented -z combrelocs/nocombreloc. 
This is the option which sorts relocs to optimize dynamic linker performance.
-z combelocs is the default in gold, also it ignores -z nocombreloc,
this patch do the same.

Patch sorts relocations by symbols only and do not create any
DT_REL[A]COUNT entries. That is different with what gold/bfd do.

More information about option is here:
http://www.airs.com/blog/archives/186
http://people.redhat.com/jakub/prelink.pdf, p.2

Differential revision: http://reviews.llvm.org/D19528

llvm-svn: 269066
 2016-05-10 15:47:57 +00:00
Rafael Espindola e02f4dfb9e Remove an unnecessary hack. 
It doesn't look like anything is depending on using local dynamic tls
relocations with preemptable  symbols.

llvm-svn: 262957
 2016-03-08 21:17:31 +00:00
George Rimar 9db204af65 [ELF] - Implemented some GD, LD and IE TLS access models for x86 target. 
Main aim of the patch to introduce basic support for TLS access models for x86 target.
Models using @tlsgd, @tlsldm and @gotntpoff are implemented.

Differential revision: http://reviews.llvm.org/D15060

llvm-svn: 254500
 2015-12-02 09:58:20 +00:00