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<TITLE>About debugging a maemo application using gdb inside scratchbox </TITLE>
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<P><FONT SIZE=2 FACE="Arial">Hi!</FONT>
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<P><FONT SIZE=2 FACE="Arial">I have been trying to use gdb to debug a maemo application, maemo_hello inside scratchbox for armel target and have been encountering some problems while doing the same. I did the following to run gdb and debug the application :</FONT></P>
<P><FONT SIZE=2 FACE="Arial">First, I opened two scratchbox prompts (say sbox1 and sbox2). In the first prompt sbox1, I gave the following command to start the gdb server,</FONT></P>
<P><FONT SIZE=2 FACE="Arial">> qemu -g maemo_hello (where maemo_hello is the application name)</FONT>
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<P><FONT SIZE=2 FACE="Arial">Then in the prompt sbox2, I started gdb by typing </FONT>
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<P><FONT SIZE=2 FACE="Arial">> gdb</FONT>
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<P><FONT SIZE=2 FACE="Arial">This gave the gdb prompt. I typed the following commands at the gdb prompt to start debugging the application(Messages displayed after typing each command are also given below) :-</FONT></P>
<P><FONT SIZE=2 FACE="Arial">(gdb) file ./maemo_hello</FONT>
<BR><FONT SIZE=2 FACE="Arial">Reading symbols from /home/swetha/maemo_hello-1.0/maemo_hello…done.</FONT>
<BR><FONT SIZE=2 FACE="Arial">(gdb) target remote localhost:1234</FONT>
<BR><FONT SIZE=2 FACE="Arial">Remote debugging using localhost:1234</FONT>
<BR><FONT SIZE=2 FACE="Arial">0x400826e0 in ?? ()</FONT>
<BR><FONT SIZE=2 FACE="Arial">(gdb)</FONT>
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<P><FONT SIZE=2 FACE="Arial">Now, when I set a breakpoint using break statement at any line and later run the program by typing 'cont', the following happens,</FONT></P>
<P><FONT SIZE=2 FACE="Arial">(gdb) break main</FONT>
<BR><FONT SIZE=2 FACE="Arial">Breakpoint 1 at 0x89e0: file maemo_hello.c, line 6.</FONT>
<BR><FONT SIZE=2 FACE="Arial">(gdb) cont</FONT>
<BR><FONT SIZE=2 FACE="Arial">Continuing.</FONT>
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<P><FONT SIZE=2 FACE="Arial">Breakpoint 1, main (argc=0, argv=0x426d3000) at maemo_hello.c:6</FONT>
<BR><FONT SIZE=2 FACE="Arial">6 {</FONT>
<BR><FONT SIZE=2 FACE="Arial">(gdb) step</FONT>
<BR><FONT SIZE=2 FACE="Arial">12 gtk_init(&argc,&argv);</FONT>
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<P><FONT SIZE=2 FACE="Arial">Now when I try to continue stepping throught the code by again typing 'step' at the gdb prompt, I get the following message :</FONT></P>
<P><FONT SIZE=2 FACE="Arial">(gdb) step</FONT>
<BR><FONT SIZE=2 FACE="Arial">Watchdog has expired. Target detached.</FONT>
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<P><FONT SIZE=2 FACE="Arial">After this message I am able to debug using gdb only after I restart the server. I checked the Watchdog value using 'show watchdog' and found that it was set to 0 (zero) which I read was used for infinite time setting. </FONT></P>
<P><FONT SIZE=2 FACE="Arial">Can you please let me know why this is happening? How do I avoid this watchdog expiration problem? </FONT>
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<P><FONT SIZE=2 FACE="Arial">Thanks & Regards,</FONT>
<BR><FONT SIZE=2 FACE="Arial">Swetha R</FONT>
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