Al Viro writes:
On Mon, Oct 11, 2010 at 12:52:56AM +0100, Al Viro wrote:
On Sun, Oct 10, 2010 at 10:18:03PM +0200, Geert Uytterhoeven wrote:
This is on aranym-0.9.9-1 from Ubuntu/amd64.
stat -L /proc/2/exec, otherwise you'll hit lstat() instead of stat().
And FWIW 0.9.10-1 squeeze/amd64 also triggers here...
Still, just "stat: cannot stat `proc/2/exe': No such file or directory" here...
Interesting... Which gcc version is used?
Argh... OK, going through aranym with debugger has exhonorated it. My
apologies ;-/ It *is* gcc in sid. Testcase:
extern int foo(int);
void *bar(int n)
{
return (void *)foo(n);
}
and gcc -S -O2 turns that into
bar:
link.w %fp,#0
unlk %fp
jra foo
Spot the obvious bug... BTW, why on the Earth does debian-ports m68k tree
use gcc-4.3 with Cthulhu-scaring 700Kb gzipped patch and does *not* have
gcc-4.4?
I can confirm that the bug exists in gcc-4.3.4 and gcc-4.4.5,
but it has been fixed in gcc-4.5.1 which generates:
bar:
link.w %fp,#0
move.l 8(%fp),-(%sp)
jsr foo
move.l %d0,%a0
unlk %fp
rts
I don't yet know the gcc PR number or svn commit # for the fix
(in case people want a backport).
--
To unsubscribe from this list: send the line "unsubscribe linux-m68k" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
