#3668: PIE-enabled hardened gcc might broke GHC.
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Reporter: secludedsage | Owner:
Type: bug | Status: closed
Priority: normal | Milestone:
Component: Compiler | Version: 6.10.4
Resolution: fixed | Keywords:
Difficulty: | Os: Linux
Testcase: | Architecture: x86
Failure: None/Unknown |
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Comment (by kolmodin):
We've had similar patches like this in previous ghc versions for Gentoo,
but with ghc 6.10.4 it somehow slipped away.
I don't know if it can be solved in the build system in another way.
The flags we put into {{{${GHC_CFLAGS}}}} is currently parts the users'
{{{${CFLAGS}}}}, mostly to do with the arch and ABI flags. Then for
hardend we add {{{-nopie}}}, for gccs with stack protectors we turn that
off.
For ppc64 we need {{{-mminimal-toc}}}, and for earlier ghc versions we've
passed the {{{-Wa,--noexecstack}}} flag due to QA in Gentoo.
These are flags we always want in place, thus it's natural to put it in
the ghc wrapper.
To see more details on how all this funny business comes together, see the
ghc-6.12rc2 ebuild:
http://code.haskell.org/gentoo/gentoo-haskell/dev-
lang/ghc/ghc-6.12.0.20091121.ebuild
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3668#comment:12>
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