[perl #32450] [PATCH] core dump of japh16

[Bernhard Schmalhofer]

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Hi,

since a couple of days the example japh16 is dumping core on my Linux
machine.
It looks like there was a free on a NULL, when cleaning up packfile
segments. The attached patch checks wether there is a fixup table in the
seqment.

I'm not sure about the validity of this patch. Perhaps there has to be a
fixup table.
Unfortunately I have no idea what a fixup table does.

CU, Bernhard

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[Leopold Toetsch]

Bernhard Schmalhofer <parrotbug...@parrotcode.org> wrote:

> since a couple of days the example japh16 is dumping core on my Linux
> machine.
> It looks like there was a free on a NULL, when cleaning up packfile
> segments. The attached patch checks wether there is a fixup table in the
> seqment.

> I'm not sure about the validity of this patch. Perhaps there has to be a
> fixup table.

It's fine.

> Unfortunately I have no idea what a fixup table does.

The fixup table is a list of global Sub PMCs. These are coming from he
packfile with relative start offsets to the beginning of their packfile.
During fixup, these offsets are converted to absolute bytecode
addresses.

> CU, Bernhard

Thanks, applied.
leo