X-Authentication-Warning:	delorie.com: mail set sender to djgpp-bounces using -f
X-Recipient:	djgpp AT delorie DOT com
X-Authenticated:	#27081556
X-Provags-ID:	V01U2FsdGVkX1+NW+9XzSeNk3EzTIAnXC6vaBsH++MV+2QsTXuPG7
	dTDm6pJShYex2n
From:	Juan Manuel Guerrero <juan DOT guerrero AT gmx DOT de>
To:	Eli Zaretskii <eliz AT gnu DOT org>
Subject:	Re: Difficulries with GDB 7.2 compiled with DJGPP
Date:	Sun, 16 Jan 2011 20:12:26 +0100
User-Agent:	KMail/1.9.10
Cc:	djgpp AT delorie DOT com
References:	<201101152018 DOT 51379 DOT juan DOT guerrero AT gmx DOT de> <E1PeGAp-00021L-98 AT fencepost DOT gnu DOT org>
In-Reply-To:	<E1PeGAp-00021L-98@fencepost.gnu.org>
MIME-Version:	1.0
Message-Id:	<201101162012.26442.juan.guerrero@gmx.de>
X-Y-GMX-Trusted:	0

Am Sonntag, 16. Januar 2011 schrieb Eli Zaretskii:
> > From: Juan Manuel Guerrero <juan DOT guerrero AT gmx DOT de>
> > Date: Sat, 15 Jan 2011 20:18:51 +0100
> > 
> > (gdb) b main
> > Breakpoint 1 at 0x1f26: file 1.c, line 5.
> > (gdb) r
> > Starting program: f:/g/4/__bins__/bin/2.exe
> > Don't know how to run.  Try "help target".
> > (gdb) target exec
> > No executable file now.
> > (gdb)
> > 
> > 
> > Any suggestions?
> 
> Can you debug the v2.04 build with GDB from the v2.03 build, and see
> what causes the "Don't know how to run" message?


The above error message is printed in find_default_run_target() in gdb/tagret.c.
There, the struct target_ops is evaluated calling target_can_run().

For 2.03 version the following output is generated if I print the struct
identifier string  (a count = 1 means that target_can_run was successful):


GNU gdb (GDB) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=i586-pc-msdosdjgpp --target=djgpp".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from f:/g/3/__bins__/bin/1.exe...done.
(gdb) b main
Breakpoint 1 at 0x1f31: file 1.c, line 9.
(gdb) r
Starting program: f:/g/3/__bins__/bin/1.exe 
t->to_longname=djgpp target process:  count=1
t->to_longname=Remote serial target in gdb-specific protocol:  count=0
t->to_longname=Extended remote serial target in gdb-specific protocol:  count=0
t->to_longname=Local trace dump file:  count=0
t->to_longname=Local exec file:  count=0
t->to_longname=Process record and replay target:  count=0
t->to_longname=Process record and replay target:  count=0
t->to_longname=djgpp target process:  count=1
t->to_longname=Remote serial target in gdb-specific protocol:  count=0
t->to_longname=Extended remote serial target in gdb-specific protocol:  count=0
t->to_longname=Local trace dump file:  count=0
t->to_longname=Local exec file:  count=0
t->to_longname=Process record and replay target:  count=0
t->to_longname=Process record and replay target:  count=0
t->to_longname=djgpp target process:  count=1
t->to_longname=Remote serial target in gdb-specific protocol:  count=0
t->to_longname=Extended remote serial target in gdb-specific protocol:  count=0
t->to_longname=Local trace dump file:  count=0
t->to_longname=Local exec file:  count=0
t->to_longname=Process record and replay target:  count=0
t->to_longname=Process record and replay target:  count=0

Breakpoint 1, main () at 1.c:9
9	    printf("i=%d", i);
(gdb) q
A debugging session is active.

	Inferior 1 [process 42] will be killed.

Quit anyway? (y or n) 



For the 2 2.04 version the following output is printed:

GNU gdb (GDB) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=i786-pc-msdosdjgpp --target=djgpp".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from f:/g/4/__bins__/bin/1.exe...done.
(gdb) b main
Breakpoint 1 at 0x1f31: file 1.c, line 9.
(gdb) r
Starting program: f:/g/4/__bins__/bin/1.exe 
t->to_longname=Remote serial target in gdb-specific protocol:  count=0
t->to_longname=Extended remote serial target in gdb-specific protocol:  count=0
t->to_longname=Local trace dump file:  count=0
t->to_longname=Local exec file:  count=0
t->to_longname=Process record and replay target:  count=0
t->to_longname=Process record and replay target:  count=0
(gdb) q


As can be seen the "djgpp target process" does not appear the struct.  May be
that the configuration process is wrong.  More investigation needs to be done.


Regards,
Juan M. Guerrer0

- Raw text -