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Author SHA1 Message Date
Victor Huang 7b391245d8 [PowerPC] Fix thunk alignment issue when using pc-rel instruction 
Thunk alignment is added in thie patch when using pc-rel instructions
to avoid crossing the 64 byte boundary.

Patched by: nemanjai, NeHuang
Reviewed By: sfertile, MaskRay

Differential Revision: https://reviews.llvm.org/D85973
 2020-08-17 09:09:36 -05:00
Fangrui Song 9195b01911 [ELF][PPC64] Enable R_PPC64_REL14 trunks 
The thunk implementation is available but an assertion disallows it.
Linux kernel has such a use case: in arch/powerpc/kernel/exceptions-64s.S:handle_page_fault,
beq+ ret_from_except_lite may get out of range.

Link: https://github.com/ClangBuiltLinux/linux/issues/951

Differential Revision: https://reviews.llvm.org/D76904
 2020-04-04 10:59:17 -07:00