PARI/GP Bug report logs - #1237
undefined behaviour in pari_init_parser

Package: pari; Maintainer for pari is Aurel Page <aurel.page@normalesup.org>; Source for pari is src:pari.

Reported by: Julian Taylor <jtaylor.debian@googlemail.com>

Date: Wed, 31 Aug 2011 15:33:08 UTC

Severity: normal

Done: Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>

Bug is archived. No further changes may be made.

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Subject: Bug#1237: undefined behaviour in pari_init_parser
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Date: Mon, 19 Sep 2011 23:23:59 +0200
From: Julian Taylor <jtaylor.debian@googlemail.com>
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References: <4E5E52C5.4050702@googlemail.com> <20110901202245.GH17070@yellowpig> <4E5FF27B.5080600@googlemail.com> <20110902165738.GM17070@yellowpig> <20110913144151.GE6199@yellowpig> <4E76503A.9070006@googlemail.com> <20110918214754.GM18359@yellowpig>
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[Message part 1 (text/plain, inline)]
On 09/18/2011 11:47 PM, Bill Allombert wrote:
>>
>> unfortunately it still fails with the same issue in my qemu armel chroot
>> on ubuntu oneiric which has pretty much the same gcc version as debian
>> (4.6-9ubuntu3).
>> I don't understand why.
> 
> Can you check with the debugger whether it is not a different instance of the same
> issue ? The function pari_init_parser has a similar issue.
> 
> Cheers,
> Bill.

doing the same thing for pari_init_parser does fix the problem in my
armel emulation but one must mess with the pari_tree variable which
probably breaks api.
Maybe some header restructuring + a macro can retain it.
See attached patch which should not break api but it does break abi and
is really ugly :/

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Bill Allombert <allomber@math.u-bordeaux.fr>. Last modified: Sat Aug 26 17:15:04 2023; Machine Name: pari

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