freebsd-dev/contrib/llvm
Leandro Lupori 1153929465 [PPC64] Backport fix for missing IRELATIVE relocations
This is a backport of LLVM commit 8331f61a51a7a0a1efbf5ed398e181593023d151,
llvm-svn: 353981:

ELF: Allow GOT relocs pointing to non-preemptable ifunc to resolve to an
IRELATIVE where possible.

This is needed in order to make ifuncs work correctly on PPC64.

It fixes an issue with lld, in which it would skip emitting necessary IRELATIVE
relocations.  Without this change, indirect calls to ifuncs would result in a
segmentation fault, in static binaries or when defined in the main binary
(outside shared libraries).

This change also reverts the local
"Preserve relocations against ifuncs when -zifunc-noplt" commit and
replaces it by its upstream version, as part of the merge.

Reviewed by:	markj
Differential Revision:	https://reviews.freebsd.org/D21102
2019-07-31 16:22:05 +00:00
..
include Pull in r360968 from upstream llvm trunk (by Philip Reames): 2019-07-01 21:06:10 +00:00
lib Pull in r366369 from upstream llvm trunk (by Francis Visoiu Mistrih): 2019-07-26 18:49:20 +00:00
tools [PPC64] Backport fix for missing IRELATIVE relocations 2019-07-31 16:22:05 +00:00
utils/TableGen Pull in r352607 from upstream llvm trunk (by Craig Topper): 2019-02-10 12:45:33 +00:00
FREEBSD-Xlist Merge llvm trunk r351319, resolve conflicts, and update FREEBSD-Xlist. 2019-01-20 11:41:25 +00:00
LICENSE.TXT Merge llvm trunk r351319, resolve conflicts, and update FREEBSD-Xlist. 2019-01-20 11:41:25 +00:00