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* c/10085: GCC references local symbol that does not exist
@ 2003-03-14 19:36 linville
0 siblings, 0 replies; 3+ messages in thread
From: linville @ 2003-03-14 19:36 UTC (permalink / raw)
To: gcc-gnats; +Cc: nhorman
>Number: 10085
>Category: c
>Synopsis: GCC references local symbol that does not exist
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: wrong-code
>Submitter-Id: net
>Arrival-Date: Fri Mar 14 19:36:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: John W. Linville
>Release: gcc version 3.2.1 20020930 (MontaVista)
>Organization:
>Environment:
i686-pc-linux-gnu, Red Hat 7.3, MontaVista Linux 3.0
>Description:
The bug is that GCC 3.2.1 for PowerPC (82xx) will (or can) generate code that references local symbols that are not defined.
The bug is revealed by compiling this file with HAVE_BUG defined. The generated code will reference a symbol (.L16) which is not defined.
The bug can be averted by defining either HAVE_ALL_CASES or
HAVE_DEFAULT (but not both) while NOT defining HAVE_BUG.
The bug can also be averted by compiling with optimization (-O).
Attached source file will compile without any headers...
gcc -v:
Reading specs from /opt/mvl30/hardhat/devkit/ppc/82xx/bin/../lib/gcc-lib/powerpc-hardhat-linux/3.2.1/specs
Configured with: ../configure --host=i686-pc-linux-gnu --target=powerpc-hardhat-linux --prefix=/opt/hardhat/devkit/ppc/82xx --exec-prefix=/opt/hardhat/devkit/ppc/82xx --bindir=/opt/hardhat/devkit/ppc/82xx/bin --sbindir=/opt/hardhat/devkit/ppc/82xx/sbin --sysconfdir=/opt/hardhat/devkit/ppc/82xx/etc --datadir=/opt/hardhat/devkit/ppc/82xx/share --includedir=/opt/hardhat/devkit/ppc/82xx/include --libdir=/opt/hardhat/devkit/ppc/82xx/lib --libexecdir=/opt/hardhat/devkit/ppc/82xx/libexec --localstatedir=/opt/hardhat/devkit/ppc/82xx/var --sharedstatedir=/opt/hardhat/devkit/ppc/82xx/share --mandir=/opt/hardhat/devkit/ppc/82xx/man --infodir=/opt/hardhat/devkit/ppc/82xx/info --program-transform-name=s,^,ppc_82xx-, --enable-cross --with-gxx-include-dir=${prefix}/powerpc-hardhat-linux/include/g++-v3 --enable-shared --enable-languages=c,c++ --enable-threads=posix --enable-__cxa_atexit --disable-multilib --with-cpu=603
Thread model: posix
gcc version 3.2.1 20020930 (MontaVista)
>How-To-Repeat:
/opt/mvl30/hardhat/devkit/ppc/82xx/bin/ppc_82xx-gcc -Wall -c bugfile.c
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: c/10085: GCC references local symbol that does not exist
@ 2003-03-14 23:25 bangerth
0 siblings, 0 replies; 3+ messages in thread
From: bangerth @ 2003-03-14 23:25 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, linville, nhorman, nobody
Synopsis: GCC references local symbol that does not exist
State-Changed-From-To: open->closed
State-Changed-By: bangerth
State-Changed-When: Fri Mar 14 23:25:33 2003
State-Changed-Why:
Bug not in FSF gcc.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10085
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: c/10085: GCC references local symbol that does not exist
@ 2003-03-14 23:06 John W. Linville
0 siblings, 0 replies; 3+ messages in thread
From: John W. Linville @ 2003-03-14 23:06 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR c/10085; it has been noted by GNATS.
From: "John W. Linville" <linville@lvl7.com>
To: gcc-gnats@gcc.gnu.org, nhorman@lvl7.com, linville@lvl7.com,
gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, gcc-prs@gcc.gnu.org
Cc:
Subject: Re: c/10085: GCC references local symbol that does not exist
Date: Fri, 14 Mar 2003 18:00:25 -0500
This does NOT seem to exist with the GNU 3.2.1 compiler. MontaVista
strikes again...
I apologize for the inconvenience/confusion...
John
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10085
P.S. This says it all:
/home/linville
[linville]:> diff bugfile.s.bad bugfile.s.good
41a42,57
> bctr
> .section .rodata
> .align 2
> .align 2
> .L16:
> .long .L1-.L16
> .long .L1-.L16
> .long .L1-.L16
> .long .L1-.L16
> .long .L1-.L16
> .long .L1-.L16
> .long .L1-.L16
> .long .L1-.L16
> .long .L1-.L16
> .long .L1-.L16
> .section ".text"
52c68
< .ident "GCC: (GNU) 3.2.1 20020930 (MontaVista)"
---
> .ident "GCC: (GNU) 3.2.1"
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2003-03-14 23:25 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2003-03-14 19:36 c/10085: GCC references local symbol that does not exist linville
2003-03-14 23:06 John W. Linville
2003-03-14 23:25 bangerth
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