[PATCH] Fix a crash that occurs when PWD is invalid.

Eric Christopher echristo at gmail.com
Mon Dec 9 12:01:51 PST 2013

Out of curiosity why isn't it able to get a compilation dir?


On Mon, Dec 9, 2013 at 11:41 AM, Andrew Trick <atrick at apple.com> wrote:
> MCJIT needs to be able to run in hostile environments, even when PWD
> is invalid. There's no need to crash MCJIT in this case.
> If we do want to guarantee valid CompilationDir, that should be done
> only for clients of getCompilationDir(). This is as simple as checking
> for an empty string.
> The obvious fix is to simply leave MCContext's CompilationDir empty
> when PWD can't be determined. The only behavioral difference would be
> that EmitGenDwarfInfo would output an empty string when recording the
> working dir for the assembly output.
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