ghc/ghc-NCG-no-execstack.patch
Jens Petersen 4e3e8f4b7c turn off executable stack flag in executables (#973512)
- reported by Dhiru Kholia
- upstream patch by Edward Zhang:
  see http://ghc.haskell.org/trac/ghc/ticket/703 and
  08a38628f2
- this affects both ghc 7.4 and 7.6
2013-07-10 11:07:23 +09:00

33 lines
1.2 KiB
Diff

commit 08a38628f29df63ac842f4d083efb414f42d7bff
Author: Edward Z. Yang <ezyang@mit.edu>
Date: Tue Jul 9 00:01:43 2013 -0700
Disable executable stack for the linker note, fixing #703 (again)
Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
Modified compiler/main/DriverPipeline.hs
diff --git a/compiler/main/DriverPipeline.hs b/compiler/main/DriverPipeline.hs
index 67377e6..26425ae 100644
--- a/compiler/main/DriverPipeline.hs
+++ b/compiler/main/DriverPipeline.hs
@@ -1640,7 +1640,17 @@ mkNoteObjsToLinkIntoBinary dflags dep_packages = do
text elfSectionNote,
text "\n",
- text "\t.ascii \"", info', text "\"\n" ]
+ text "\t.ascii \"", info', text "\"\n",
+
+ -- ALL generated assembly must have this section to disable
+ -- executable stacks. See also
+ -- compiler/nativeGen/AsmCodeGen.lhs for another instance
+ -- where we need to do this.
+ (if platformHasGnuNonexecStack (targetPlatform dflags)
+ then text ".section .note.GNU-stack,\"\",@progbits\n"
+ else empty)
+
+ ]
where
info' = text $ escape info