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Re: [opensuse-programming] lib failure?
- From: Marcus Meissner <meissner at suse dot de>
- To: Oliver Block <lists at block-online dot eu>
- Cc: gdb at sourceware dot org, suse-programming-e at suse dot com
- Date: Mon, 27 Nov 2006 16:08:21 +0100
- Subject: Re: [opensuse-programming] lib failure?
- References: <200611271557.09413.lists@block-online.eu>
On Mon, Nov 27, 2006 at 03:57:43PM +0100, Oliver Block wrote:
> Hello,
>
> I was facing a problem with a functio I wrote, checking if a file exists
> withing the fs. When I was debuggin that , I set 2 breakpoints, the first to
> the function file_exists and the second to the function call of file_exists
> inside the program. I got the following output
>
> **************************** gdb ************************************
> Breakpoint 2, main (argc=1, argv=0xbffff1c4) at ddnscli.c:712
> 712 if(file_exists(lockfile))
> (gdb) s
>
> Breakpoint 1, file_exists (fname=0xbffff110 "disabled") at ddnscli.c:689
> 689 if( (rval = stat( fname, &attribut)) == -1)
> (gdb) s
> __stat (file=0xbffff070 "\200", buf=0xbffff070) at stat.c:51
> 51 stat.c: Datei oder Verzeichnis nicht gefunden.
> in stat.c
> (gdb) bt full
> #0 __stat (file=0xbffff070 "\200", buf=0xbffff070) at stat.c:51
> No locals.
> #1 0x0804a56b in file_exists (fname=0xbffff110 "disabled") at ddnscli.c:689
> attribut = {st_dev = 128, __pad1 = 34760, st_ino = 7, st_mode = 53,
> st_nlink = 1075277812, st_uid = 1075283840, st_gid = 134522768,
> st_rdev = 4615200421588234412, __pad2 = 34688, st_size = 40,
> st_blksize = 1075277812, st_blocks = 1073835200, st_atime = 134522768,
> st_atimensec = 3221221564, st_mtime = 1074560382, st_mtimensec = 40,
> st_ctime = 1075277812, st_ctimensec = 3221221592, __unused4 = 1074559989,
> __unused5 = 40}
> rval = 1075277812
> *************************************************************************************
>
> __stat (file=0xbffff070 "\200", buf=0xbffff070) at stat.c:51
>
> both arguments of stat hold the same address. file should be AFAIK
> fname=0xbffff110.
>
> I isolated the function to a test_program and it works fine there.
>
> Any ideas?
Showing us the actual source of the function would perhaps help.
Ciao, Marcus