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5 Commits

Author SHA1 Message Date
Michael J. Spencer 6c34eff536 [elf2] Fix R_X86_64_TPOFF32 handling. 
For x86-64 the initial executable TLS block is placed directly before the
thread specific data register so compilers can directly access it via
R_X86_64_TPOFF32. Generate the correct (negative) offset for this case.

llvm-svn: 252131
 2015-11-05 02:00:35 +00:00
Michael J. Spencer d77f0d2526 [elf2] Implement R_X86_64_TPOFF32. 
This does not support TPOFF32 relocations to local symbols as the address calculations are separate. Support for this will be a separate patch.

llvm-svn: 251998
 2015-11-03 22:39:09 +00:00
Rafael Espindola 443f50a833 Create .bss only when needed. 
This is a small complication, but produces nicer output and is a step to
handling zero size sections uniformly.

llvm-svn: 251980
 2015-11-03 21:35:14 +00:00
Michael J. Spencer 78aa1de3ae [elf2] Generate PT_TLS. 
Differential Revision: http://reviews.llvm.org/D14167

llvm-svn: 251872
 2015-11-03 00:34:39 +00:00
Michael J. Spencer 4633a373e0 [elf2] Don't allocate VA space for TLS NOBITS sections. 
Differential Revision: http://reviews.llvm.org/D13838

llvm-svn: 251454
 2015-10-27 21:22:54 +00:00