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ghc: add comment to relocation patch

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This commit is contained in:
Robin Gloster
2016-08-26 15:19:37 +00:00
parent 098680e78e
commit e0deed0110
2 changed files with 10 additions and 0 deletions
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8
pkgs/development/compilers/ghc/relocation.patch
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@@ -1,3 +1,11 @@
Adding support for the R_X86_64_REX_GOTPCRELX relocation type.
This relocation is treated by the linker the same as the R_X86_64_GOTPCRELX type
G + GOT + A - P to generate relative offsets to the GOT.
The REX prefix has no influence in this stage.
This caused breakage when enabling relro/bindnow hardening e.g. in ghcPaclages.vector
Source: https://phabricator.haskell.org/D2303#67070
diff --git a/rts/Linker.c b/rts/Linker.c
--- a/rts/Linker.c
+++ b/rts/Linker.c