Segfault in Lua exception handler

François Perrad francois.perrad at gadz.org
Sat Oct 11 21:49:09 UTC 2008


2008/10/8 François Perrad <francois.perrad at gadz.org>:
>
> I try to restore the Lua behavior after ppd27mmd merge.
>
> Lua crashes with segmentation fault when the Lua exception handler is
> called (see subroutine 'docall' in languages/lua/src/lib/luaaux.pir),
> when function NCI 'traceback' in languages/lua/src/pmc/lua.pmc is called.
>
> The following commands reproduce the problem :
>
>    $ cat add.lua
>        print(true + 42)  --> attempt to perform arithmetic on a boolean
>    $ parrot lua.pbc add.lua
>
> or
>    $ parrot luap.pir --target=pir add.lua > add.pir
>    $ parrot add.pir
>

Since hllmagic merge (r31862), the Lua compiler using PCT is broken.
So, use the old compiler (Perl/yapp based).

    $ cat add.lua
        print(true + 42)  --> attempt to perform arithmetic on a boolean
    $ perl luac.pl add.lua
    $ parrot add.pir

François.

>
>
> François.
>
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