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* Re: target/8624: gcc 2.95.3 (arm-linux-gcc) char type problem.
@ 2002-11-23 1:56 schwab
0 siblings, 0 replies; 3+ messages in thread
From: schwab @ 2002-11-23 1:56 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, mchen, nobody
Synopsis: gcc 2.95.3 (arm-linux-gcc) char type problem.
State-Changed-From-To: open->closed
State-Changed-By: schwab
State-Changed-When: Mon Nov 18 12:03:29 2002
State-Changed-Why:
Not a bug, char is unsigned by default on arm.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8624
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: target/8624: gcc 2.95.3 (arm-linux-gcc) char type problem.
@ 2002-11-23 4:49 mchen
0 siblings, 0 replies; 3+ messages in thread
From: mchen @ 2002-11-23 4:49 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR target/8624; it has been noted by GNATS.
From: mchen <mchen@transdimension.com>
To: schwab@gcc.gnu.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org,
mchen@transdimension.com, nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Cc:
Subject: Re: target/8624: gcc 2.95.3 (arm-linux-gcc) char type problem.
Date: Mon, 18 Nov 2002 12:09:01 -0800
Thanks!
schwab@gcc.gnu.org wrote:
>
> Synopsis: gcc 2.95.3 (arm-linux-gcc) char type problem.
>
> State-Changed-From-To: open->closed
> State-Changed-By: schwab
> State-Changed-When: Mon Nov 18 12:03:29 2002
> State-Changed-Why:
> Not a bug, char is unsigned by default on arm.
>
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8624
^ permalink raw reply [flat|nested] 3+ messages in thread
* target/8624: gcc 2.95.3 (arm-linux-gcc) char type problem.
@ 2002-11-23 1:16 mchen
0 siblings, 0 replies; 3+ messages in thread
From: mchen @ 2002-11-23 1:16 UTC (permalink / raw)
To: gcc-gnats
>Number: 8624
>Category: target
>Synopsis: gcc 2.95.3 (arm-linux-gcc) char type problem.
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon Nov 18 11:56:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Transdimension
>Release: gcc version 2.95.3 20010315 release
>Organization:
>Environment:
The problem always occurs when a progrom is cross-compiled
on x86 linux for arm targets.
>Description:
A char variable taking a negative value will be cast
to a positive result when being cast to a int variable.
If it is modified by "signed char" instead of just "char"
at declearation, the problem is gone.
>How-To-Repeat:
Compile the attached file t.c on a pc with
gcc t.c -o t
Run the ./t, the result will be:
i=-128 j=-128 i=ffffff80 j=ffffff80
ii=-128 jj=-128 ii=ffffff80 jj=ffffff80
Compile with
arm-linux-gcc t.c -o t
Run the ./t on an arm platform, the result will be:
i=-128 j=-128 i=ffffff80 j=ffffff80
ii=128 jj=128 ii=80 jj=80
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="t.c"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="t.c"
LyogCWZpbGU6IHQuYwoqLwoKI2luY2x1ZGUgPHN0ZGlvLmg+CgptYWluKCkKeyAKICBzaWduZWQg
Y2hhciAgaTsgaW50ICBqOwogICAgICAgICBjaGFyIGlpOyBpbnQgamo7CgoJaSA9IC0xMjg7Cglq
ID0gaTsKCWlpID0gLTEyODsKCWpqID0gaWk7CgoJcHJpbnRmKCJcbiAgaT0lZCAgaj0lZCAgIGk9
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LTEyOCAgaj0tMTI4ICAgaT1mZmZmZmY4MCAgaj1mZmZmZmY4MAoKIGlpPS0xMjggamo9LTEyOCAg
aWk9ZmZmZmZmODAgamo9ZmZmZmZmODAKKi8KCi8qIAlyZXN1bHQgb24gYW4gYXJtIHBsYXRmb3Jt
OgoKICBpPS0xMjggIGo9LTEyOCAgIGk9ZmZmZmZmODAgIGo9ZmZmZmZmODAKCiBpaT0xMjggamo9
MTI4ICBpaT04MCBqaj04MAoqLwoK
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-11-23 1:56 target/8624: gcc 2.95.3 (arm-linux-gcc) char type problem schwab
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2002-11-23 4:49 mchen
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