Re: segfault with latest gtags

[Aneesh Kumar]

On Sat, Feb 13, 2010 at 6:24 PM, Hideki IWAMOTO
<address@hidden> wrote:
> Hi.
> On Thu, 11 Feb 2010 23:22:51 +0530, Aneesh Kumar wrote...
>> address@hidden /home/opensource/sources/global/gtags/gtags  -c -i -f
>> gtags.files
>> gtags: primary key size == 0.
>
> Backtrace information when this message is displayed is needed.
> Could you execute gtags on GDB like this?
> $ gdb /home/opensource/sources/global/gtags/gtags
> (gdb) b die
> (gdb) r -c -i -f gtags.files
> (gdb) bt
>
>> "/home/opensource/sources/linux-2.6",
>>     root=0xbf91d98a "/home/opensource/sources/linux-2.6",
>
> Which version of the linux source code did you process?
> I cannot reproduce the bug that you reported with linux-2.6.32.8 and 
> linux-2.6.33-rc7.
>

i am using the git version. But i guess you should be able to
reproduce it on other versions too.
BTW after creating the G* files you need to checkout an older version
and try to recreate using
-c -i -f .  I am  attaching below the gdb details


(gdb) r -c -i -f  gtags.files
Starting program: /home/opensource/sources/global/gtags/gtags -c -i -f
 gtags.files

Program received signal SIGSEGV, Segmentation fault.
dbop_next (dbop=0xaf84710) at dbop.c:362
362                             else if (ismeta(dat.data))
(gdb) where
#0  dbop_next (dbop=0xaf84710) at dbop.c:362
#1  0x0805ae65 in gtags_delete (gtop=0xaf80488, deleteset=0x80a9720)
at gtagsop.c:624
#2  0x0804a7af in updatetags_using_builtin_parser (dbpath=0xbfffdc3b
"/home/opensource/sources/linux-2.6",
    root=0xbfffcc3a "/home/opensource/sources/linux-2.6",
deleteset=0x80a9720, addlist=0x80a96e0) at gtags.c:1103
#3  0x0804b327 in incremental (dbpath=0xbfffdc3b
"/home/opensource/sources/linux-2.6",
    root=0xbfffcc3a "/home/opensource/sources/linux-2.6") at gtags.c:693
#4  0x0804c481 in main (argc=<value optimized out>, argv=<value
optimized out>) at gtags.c:471
(gdb) p dat
$1 = {data = 0x3d597273, size = 57}
(gdb) p *(dat.data)
Attempt to dereference a generic pointer.
(gdb)


address@hidden /home/opensource/sources/global/gtags/gtags --version
gtags - GNU GLOBAL 5.8
Copyright (c) 2010 Tama Communications Corporation

-aneesh