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3 Commits

Author SHA1 Message Date
Tamas Berghammer f5ead561b3 Fix several issues around .ARM.exidx section handling 
* Use .ARM.exidx as a fallback unwind plan for non-call site when the
  instruction emulation based unwind failed.
* Work around an old compiler issue where the compiler isn't sort the
  entries in .ARM.exidx based on their address.
* Fix unwind info parsing when the virtual file address >= 0x80000000
* Fix bug in unwind info parsing when neither lr nor pc is explicitly
  restored.

Differential revision: http://reviews.llvm.org/D13380

llvm-svn: 249119
 2015-10-02 11:58:26 +00:00
Tamas Berghammer 4e28ee243c Make the ArmUnwindInfo parsing code endian independent 
Differential revision: http://reviews.llvm.org/D13291

llvm-svn: 248910
 2015-09-30 15:17:06 +00:00
Tamas Berghammer 648f3c7efa Add support for .ARM.exidx unwind information 
.ARM.exidx/.ARM.extab sections contain unwind information used on ARM
architecture from unwinding from an exception.

Differential revision: http://reviews.llvm.org/D13245

llvm-svn: 248903
 2015-09-30 13:50:14 +00:00