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SubjectRe[2]: Thread debugging cause unknow signal ? with gdb 4.18 and libc6 2.1.2-0pre7
Hello Richard,

ÐÇÆÚ¶þ, 1999Äê8ÔÂ17ÈÕ, you wrote:


RD> I've been actively debugging applications using linuxthreads with gdb.

RD> I've got GNU gdb 4.17.0.11 with Linux support, RH 6.0 distro.

RD> The man page for gdb is incomplete, the info pages are more complete,
RD> search on /thread/.

RD> -Richard


RD> Raphael Bossek wrote:
>>
>> Hi,
>>
>> it is inpossible to me debug (gdb 4.18) my thread application that base on
>> linuxthreads (libpthread from libc6 2.1.2-0pre7). gdb does not recognize
>> thread creation (pthread_create) and receive unknown signal :-( The gdb output
>> is the following:
>> Pgoram received signal ?, Unknown signal.
>> 0x4004814a in sigsuspend() from /lib/libc.so.6
>>
>> The application is really simple (from Pthread Programming, O'Reilly). Two
>> threads printf different text and the main application wait for them to
>> exit. The application works fine but i would like test the debugging
>> possibilities of Linux before start a bigger project that need thread debuging
>> functionality !
>>
>> A look into the gdb documentation showed that gdb should support multiple
>> thread applications but why doesn't it work with my system configuration
>> (Debian GNU/Linux Potato; Kernel 2.2.10; non SMP) ?! I never tried this with
>> earlier versions of libraries or applications.
>>
>> Any kind of help is welcome :-)
>>
>> cu Raphael Bossek <raphael.bossek@solutions4linux.de>
>>
>> --
>> Sent through Global Message Exchange - http://www.gmx.net
>>
>> -
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glibc-2.1's pthread-lib use realtime signal,glibc-2.0's use signal
USR1 and USR2



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