[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Gdb-discuss] Query on tracepoint usage
From: |
Ramana Radhakrishnan |
Subject: |
Re: [Gdb-discuss] Query on tracepoint usage |
Date: |
Tue, 21 Jun 2005 23:27:54 +0530 |
Hi,
tracepoints are not supported in GDB / GDBserver . AFAIK it was
supported for some other embedded stub. Also use address@hidden
or address@hidden for generic queries about gdb.
cheers
Ramana
>
> Hi,
> I am trying to get the tracedump of all local variables in a function
> using the gdb tracepoint functionality.
> Here are the steps I followed
>
>
> Started gdbserver on port 1234 ("test" is an executable)
>
> address@hidden test]$ gdbserver :1234 ./test
> Process ./test created; pid = 17004
> Remote debugging from host 127.0.0.1
>
>
> in another terminal started gdb
>
>
> address@hidden test]$ gdb test
> GNU gdb 5.3
> Copyright 2002 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and
> you are
> welcome to change it and/or distribute copies of it under certain
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB. Type "show warranty" for
> details.
> This GDB was configured as "i686-pc-linux-gnu"...
> (gdb) target remote :1234
> Remote debugging using :1234
> 0x40000be0 in ?? ()
> (gdb) trace *myfunc (setting trace for myfunc function)
> Tracepoint 1 at 0x8048328: file test.c, line 1.
> (gdb) actions
> Enter actions for tracepoint 1, one per line.
> End with a line saying just "end".
> > collect $locals (collect the local variables)
> > end
> (gdb) tstart (trace start)
> Target does not support this command.
> (gdb)
>
> tstart giving this error message (Target does not support this
> command). I am trying this on Redhat 9 (i386), gdb 5.3 version. Here
> are my observations when I looked the source code of gdb 5.3. There
> exist a function trace_start_command which calls putpkt("QTinit") and
> in the gdbserver code this packet "QTinit" is getting parsed. In the
> server side the packet "Q" handling function does not exist... which
> inturn makes it to throw the above said message.
>
> Am I doing something wrong here or the tracing support is not there on
> that version of gdb. Please do advice me in fixing this issue.
>
> Thanks a lot,
> Rajan
> _______________________________________________
> Gdb-discuss mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/gdb-discuss