Your message dated Thu, 17 May 2012 11:38:53 +0100
with message-id
<CAPQ4b8kxpf0_pCCE9v=ducah5rh5mbms12tne1ulcshf1bg...@mail.gmail.com>
and subject line Re: arm-only miscompilation of alloca code
has caused the Debian Bug report #458745,
regarding arm-only miscompilation of alloca code
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
458745: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=458745
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: gcc-4.2
Version: 4.2.2-4
Severity: important
/tmp/foo.c:
=============================================================================
#include <stdio.h>
#include <alloca.h>
#include <stdarg.h>
#define object void *
int VFUN_NARGS;
void *alloca_val;
struct cons {
object c_cdr;
object c_car;
};
#define Cnil 0
static void
foo(object first,...) {
va_list ap;
int narg = VFUN_NARGS;
struct cons *V1128;
object V1129;
va_start(ap,first);
V1129 =
!narg? Cnil : (alloca_val=alloca((narg)*sizeof(struct cons)+sizeof(object)),
({object _b=(void *)alloca_val;if (((unsigned
long)_b)&sizeof(_b)) _b++;
{register struct cons *_p=(void *)_b;
{struct cons *_e=_p+(narg-1);
for (;_p<_e;_p++) {_p->c_car=({object
_t=first;first=va_arg(ap,object);_t;});_p->c_cdr=(object)(_p+1);}}
_p->c_car=first;_p->c_cdr=Cnil;}_b;}));
va_end(ap);
V1128= V1129;
for (;V1128!=Cnil;V1128=V1128->c_cdr)
printf("%p\n",V1128->c_car);
}
int
main(int argc,char * argv[]) {
VFUN_NARGS=4;
foo(&argc,1,2,3);
return 0;
}
=============================================================================
i386 sid:
=============================================================================
cc -g /tmp/foo.c -o /tmp/foo
/tmp/foo
0xbf867bd0
0x1
0x2
0x3
=============================================================================
leisner dchroot sid:
=============================================================================
cc -g foo.c -o foo
./foo
0x18beed5d
Segmentation fault
=============================================================================
Take care,
-- System Information:
Debian Release: lenny/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.20-gen
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash
Versions of packages gcc-4.2 depends on:
ii binutils 2.18.1~cvs20071027-1 The GNU assembler, linker and bina
ii cpp-4.2 4.2.2-4 The GNU C preprocessor
ii gcc-4.2-base 4.2.2-4 The GNU Compiler Collection (base
ii libc6 2.7-2 GNU C Library: Shared libraries
ii libgcc1 1:4.2.2-4 GCC support library
ii libgomp1 4.2.2-4 GCC OpenMP (GOMP) support library
Versions of packages gcc-4.2 recommends:
ii libc6-dev 2.7-2 GNU C Library: Development Librari
-- no debconf information
--- End Message ---
--- Begin Message ---
tags 458745 + wontfix
stop
Hello,
Thanks for the detailed bug report and your interest in improving
Debian. I'm just doing some cleanup, I am not involved with the GCC
package.
This bug report is orphan, since it's assigned to a package not
present in any of the current Debian releases (gcc-4.2).
The bug was rejected upstream, who marked it as "invalid" a few years
ago, and gave reasons for it. So I guess that the best course of
action is to close this bug report now.
Please reopen if you think that the resolution is not appropriate.
Regards.
--- End Message ---
