NetBSD Problem Report #50964
From www@NetBSD.org Sun Mar 13 17:35:56 2016
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for <gnats-bugs@gnats.NetBSD.org>; Sun, 13 Mar 2016 17:35:56 +0000 (UTC)
Message-Id: <20160313173555.05E4A7ACC0@mollari.NetBSD.org>
Date: Sun, 13 Mar 2016 17:35:55 +0000 (UTC)
From: dcb314@hotmail.com
Reply-To: dcb314@hotmail.com
To: gnats-bugs@NetBSD.org
Subject: src/sys/arch/dreamcast/dev/gdrom.c: signed integer overflow ?
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>Number: 50964
>Category: port-dreamcast
>Synopsis: src/sys/arch/dreamcast/dev/gdrom.c: signed integer overflow ?
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: port-dreamcast-maintainer
>State: closed
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Mar 13 17:40:00 +0000 2016
>Closed-Date: Sun Mar 13 19:17:22 +0000 2016
>Last-Modified: Sun Mar 13 19:17:22 +0000 2016
>Originator: David Binderman
>Release: cvs dated 20160313
>Organization:
>Environment:
>Description:
src/sys/arch/dreamcast/dev/gdrom.c:192]: (error) Signed integer overflow for expression '2690609152+156'.
Source code is
cond = GDROM_COND;
but
#define GDROM_COND GDROM(0x9c)
#define GDROM(o) (*(volatile uint8_t *)(0xa05f7000 + (o)))
Maybe better code
#define GDROM(o) (*(volatile uint8_t *)(0xa05f7000ULL + (o)))
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
From: "Christos Zoulas" <christos@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc:
Subject: PR/50964 CVS commit: src/sys/arch/dreamcast/dev
Date: Sun, 13 Mar 2016 13:59:20 -0400
Module Name: src
Committed By: christos
Date: Sun Mar 13 17:59:20 UTC 2016
Modified Files:
src/sys/arch/dreamcast/dev: gdrom.c
Log Message:
PR/50964: David Binderman: Avoid signed overflow warning
To generate a diff of this commit:
cvs rdiff -u -r1.41 -r1.42 src/sys/arch/dreamcast/dev/gdrom.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
State-Changed-From-To: open->closed
State-Changed-By: wiz@NetBSD.org
State-Changed-When: Sun, 13 Mar 2016 19:17:22 +0000
State-Changed-Why:
Fixed by christos, thanks.
>Unformatted:
(Contact us)
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