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Problem with user defined commands
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Mohanasundaram Chandran
Jan 30, 2013, 5:48:25 AM1/30/13
to bug...@gnu.org
Hi All,
User defined commands gets messed up if a definition has a name starting with "ws" and called from another definition. Is it a known defect? Any workarounds?
bash-3.2$ cat test.gdb
define wsbaz
printf "wsbaz\n"
end
define foo
wsbaz
end
define bar
printf "bar\n"
end
bash-3.2$ ./gdb
GNU gdb (GDB) 7.5.1
Copyright (C) 2012 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 "x86_64-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
(gdb) source ./test.gdb
(gdb) foo
warning: Invalid control type in canned commands structure.
warning: Error executing canned sequence of commands.
(gdb) bar
Undefined command: "bar". Try "help".
(gdb) show user foo
User command "foo":
wsfoo
end
define bar
printf "bar\n"
(gdb) show user bar
Undefined command: "bar". Try "help".
(gdb) show user wsfoo
User command "wsfoo":
printf "wsfoo\n"
(gdb) wsfoo
wsfoo
(gdb)
Cheers,
Mohan.
User defined commands gets messed up if a definition has a name starting with "ws" and called from another definition. Is it a known defect? Any workarounds?
bash-3.2$ cat test.gdb
define wsbaz
printf "wsbaz\n"
end
define foo
wsbaz
end
define bar
printf "bar\n"
end
bash-3.2$ ./gdb
GNU gdb (GDB) 7.5.1
Copyright (C) 2012 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 "x86_64-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
(gdb) source ./test.gdb
(gdb) foo
warning: Invalid control type in canned commands structure.
warning: Error executing canned sequence of commands.
(gdb) bar
Undefined command: "bar". Try "help".
(gdb) show user foo
User command "foo":
wsfoo
end
define bar
printf "bar\n"
(gdb) show user bar
Undefined command: "bar". Try "help".
(gdb) show user wsfoo
User command "wsfoo":
printf "wsfoo\n"
(gdb) wsfoo
wsfoo
(gdb)
Cheers,
Mohan.
Mohanasundaram Chandran
Jan 30, 2013, 5:52:02 AM1/30/13
to bug...@gnu.org
A small correction in the test.gdb file which I pasted earlier. This is the correct one...
bash-3.2$ cat test.gdb
define wsfoo
printf "wsfoo\n"
end
define foo
bash-3.2$ cat test.gdb
define wsfoo
printf "wsfoo\n"
end
define foo
wsfoo
end
define bar
printf "bar\n"
end
From: mohanasundar...@outlook.com
To: bug...@gnu.org
Subject: Problem with user defined commands
Date: Wed, 30 Jan 2013 16:18:25 +0530
From: mohanasundar...@outlook.com
To: bug...@gnu.org
Subject: Problem with user defined commands
Date: Wed, 30 Jan 2013 16:18:25 +0530
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bug...@gnu.org
https://lists.gnu.org/mailman/listinfo/bug-gdb
Mohanasundaram Chandran
Jan 30, 2013, 6:00:21 AM1/30/13
to bug...@gnu.org
Another info...this works in gdb 6.5 but not working in 7.2 and 7.5.1 which I tried...
Subject: RE: Problem with user defined commands
Date: Wed, 30 Jan 2013 16:22:02 +0530
Date: Wed, 30 Jan 2013 16:22:02 +0530
Mohanasundaram Chandran
Jan 30, 2013, 7:05:40 AM1/30/13
to bug...@gnu.org
We figured that the problematic code was this
/* Check for while, if, break, continue, etc and build a new
command line structure for them. */
if ((p_end - p >= 14 && !strncmp (p, "while-stepping", 14))
|| (p_end - p >= 8 && !strncmp (p, "stepping", 8))
|| (p_end - p >= 2 && !strncmp (p, "ws", 2)))
/* Check for while, if, break, continue, etc and build a new
command line structure for them. */
if ((p_end - p >= 14 && !strncmp (p, "while-stepping", 14))
|| (p_end - p >= 8 && !strncmp (p, "stepping", 8))
|| (p_end - p >= 2 && !strncmp (p, "ws", 2)))
Date: Wed, 30 Jan 2013 16:30:21 +0530
Mohanasundaram Chandran
Jan 30, 2013, 7:07:02 AM1/30/13
to bug...@gnu.org
Forgot to mention the file /gdb/cli/cli-script.c
Date: Wed, 30 Jan 2013 17:35:40 +0530
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