FreeTDS Development Group

["Vanderveen, Jim" <jim.vanderveen AT owp.csus.edu>]

Thanks for the suggestion! I'm using FreeBSD, so to pass in the "-g" option I 
did the following:

# env CFLAGS=-pipe DEBUG_FLAGS=-g portmaster databases/freetds

This should disable optimization and enable debug symbols (I think).

To make sure that optimization chagnes didn't affect anything, I tested tsql 
again:

$ tsql -S development -U ******** -P ******** <test.sql
locale is "C"
locale charset is "US-ASCII"
1> use master
2> go
1> exit
Segmentation fault: 11 (core dumped)

Finally, here is the gdb output with DEBUG=-g:

$ gdb tsql
GNU gdb 6.1.1 [FreeBSD]
This GDB was configured as "i386-marcel-freebsd"...(no debugging symbols 
found)...
(gdb) run -S development -U ******** -P ******** <test.sql
Starting program: /usr/local/bin/tsql -S development -U ******** -P ******** 
<test.sql
(no debugging symbols found)...(no debugging symbols found)...(no debugging 
symbols found)...(no debugging symbols found)...(no debugging symbols 
found)...locale is "C"
locale charset is "US-ASCII"
(no debugging symbols found)...(no debugging symbols found)...[New LWP 100232]
[New Thread 0x2842c040 (LWP 100232)]
1> use master
2> go
1> exit
[New LWP 100232]
suspend error: generic error
[Switching to LWP 100232]
Stopped due to shared library event
(gdb) bt
#0  0x28075ef0 in r_debug_state () from /libexec/ld-elf.so.1
#1  0x28079d0b in dlclose () from /libexec/ld-elf.so.1
#2  0x282885f4 in gethostbyaddr () from /lib/libc.so.7
#3  0x282886e1 in gethostbyaddr () from /lib/libc.so.7
#4  0x282887e8 in gethostbyaddr () from /lib/libc.so.7
#5  0x2828d233 in __cxa_finalize () from /lib/libc.so.7
#6  0x2823b40a in exit () from /lib/libc.so.7
#7  0x0804997f in _start1 ()
#8  0x080498e5 in _start ()
#9  0x28079d50 in dlclose () from /libexec/ld-elf.so.1
#10 0x00000007 in ?? ()
(gdb) quit
The program is running.  Exit anyway? (y or n) y


I notice many "(no debugging symbols found)" messages still, but the 
backtrace looks a bit more useful?

TIA,
Jim Vanderveen

-----Original Message-----
From: freetds-bounces AT lists.ibiblio.org 
[mailto:freetds-bounces AT lists.ibiblio.org] On Behalf Of ikorot AT earthlink.net
Subject: Re: [freetds] tsql dumping core on exit

Hi, Jim,
You need to compile FreeTDS with "-g" option to enable
debug information for the library.
Otherwise James/Frediano will just guess.... ;-)

Thank you.