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| author | Ben Gamari <bgamari.foss@gmail.com> | 2017-08-22 11:41:47 -0400 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2017-08-22 18:01:05 -0400 |
| commit | 3625728a0e3a9b56c2b85ae7ea8bcabdd83ece6a (patch) | |
| tree | c8d0ff7e921436d011e70018c5cea974dcf67f23 /compiler/nativeGen/X86 | |
| parent | dbaa9a237b6d9771c0e9bde0e50fd2134c2f4dd0 (diff) | |
| download | haskell-3625728a0e3a9b56c2b85ae7ea8bcabdd83ece6a.tar.gz | |
Add support for producing position-independent executables
Previously due to #12759 we disabled PIE support entirely. However, this
breaks the user's ability to produce PIEs. Add an explicit flag, -fPIE,
allowing the user to build PIEs.
Test Plan: Validate
Reviewers: rwbarton, austin, simonmar
Subscribers: trommler, simonmar, trofi, jrtc27, thomie
GHC Trac Issues: #12759, #13702
Differential Revision: https://phabricator.haskell.org/D3589
Diffstat (limited to 'compiler/nativeGen/X86')
| -rw-r--r-- | compiler/nativeGen/X86/CodeGen.hs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/compiler/nativeGen/X86/CodeGen.hs b/compiler/nativeGen/X86/CodeGen.hs index bd4774ae2c..8f7fbd292b 100644 --- a/compiler/nativeGen/X86/CodeGen.hs +++ b/compiler/nativeGen/X86/CodeGen.hs @@ -2696,7 +2696,7 @@ outOfLineCmmOp mop res args genSwitch :: DynFlags -> CmmExpr -> SwitchTargets -> NatM InstrBlock genSwitch dflags expr targets - | gopt Opt_PIC dflags + | positionIndependent dflags = do (reg,e_code) <- getNonClobberedReg (cmmOffset dflags expr offset) -- getNonClobberedReg because it needs to survive across t_code @@ -2759,7 +2759,7 @@ createJumpTable :: DynFlags -> [Maybe BlockId] -> Section -> CLabel -> GenCmmDecl (Alignment, CmmStatics) h g createJumpTable dflags ids section lbl = let jumpTable - | gopt Opt_PIC dflags = + | positionIndependent dflags = let jumpTableEntryRel Nothing = CmmStaticLit (CmmInt 0 (wordWidth dflags)) jumpTableEntryRel (Just blockid) |