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(parent: 5ace595) | patch
codegen: explicit allocate codebuffer with proper permissions
authorBernhard Urban <lewurm@gmail.com>
Mon, 30 Apr 2012 08:16:37 +0000 (10:16 +0200)
committerBernhard Urban <lewurm@gmail.com>
Mon, 30 Apr 2012 08:16:37 +0000 (10:16 +0200)
commit5630bf33a46d9bf47e07909bc62a785440f1acf7
tree1f8642426daa1c5a165ff7464decccf505c67f8dtree | snapshot
parent5ace595439b1cd360bade19293b2a69a7fd9910fcommit | diff
codegen: explicit allocate codebuffer with proper permissions

we had weird issues, when upgrading ghc:
http://stackoverflow.com/questions/10341943/ghc-segmentation-fault-under-strange-conditions

therefore, this fix: use `mprotect' to set the codebuffer explicitly executable.
`mprotect' requires aligned memory, so we use `memalign'.
Harpy/CodeGenMonad.hs diff | blob | history
Moved to http://github.com/MateVM -- Runtime code generation for x86 machine code (http://hackage.haskell.org/package/harpy)