From: yoann padioleau <aryx.padator@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] memory bug in 5l
Date: Tue, 9 Dec 2014 17:19:02 -0800 [thread overview]
Message-ID: <B206D946-9685-41A1-B8C4-0725213BBA30@gmail.com> (raw)
In-Reply-To: <10C19402-24DC-4B30-AD02-F83E12362D5D@gmail.com>
There is a related bug still in this file in ldobj() I think:
if(nhunk < sizeof(Prog))
gethunk();
p = (Prog*)hunk;
nhunk -= sizeof(Prog);
hunk += sizeof(Prog);
it should be while(chunk < sizeof(Prog))
(or even better again, a simple call to malloc(sizeof(Prog))
On Dec 9, 2014, at 4:21 PM, yoann padioleau <aryx.padator@gmail.com> wrote:
> in 5l/obj.c#zaddr()
> there is:
> case D_FCONST:
> while(nhunk < sizeof(Ieee))
> gethunk();
> a->ieee = (Ieee*)hunk;
> nhunk -= NSNAME;
> hunk += NSNAME;
>
> I think it’s a copy paste bug, it should
> be sizeof(Ieee) instead of those NSNAME
> (or even better the whole code could be factorized
> in a call to a->ieee = malloc(sizeof(Ieee));
>
next prev parent reply other threads:[~2014-12-10 1:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-10 0:21 yoann padioleau
2014-12-10 0:24 ` yoann padioleau
2014-12-10 1:35 ` Steve Simon
2014-12-10 1:19 ` yoann padioleau [this message]
2014-12-10 10:07 ` Charles Forsyth
2014-12-15 21:20 ` yoann padioleau
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