SIGINT sent to executable

SIGINT sent to executable

[Sushrut Sardeshmukh]

I searched google before sending this email. But could not find the
solution to the problem :(

I am using ddd+gdb on Linux to debug executable which handles SIGINT
to do graceful shutdown.

gdb is set not to pass SIGINT to executable.
(gdb) info signal
Signal        Stop      Print   Pass to program Description
SIGHUP        Yes       Yes     Yes             Hangup
SIGINT        Yes       Yes     No              Interrupt

However, when I press Interrupt button in ddd, executable gets SIGINT
and it does graceful shutdown. Totalview debugger is able to interrupt
execution. So it must be something wrong with the way I am setting up
gdb.

How can I interrupt the execution and get gdb prompt (to set another
breapoint/ watchpoint) but not send SIGINT to executable ?


Here is version info about gdb
gdb --version
GNU gdb 6.8
Copyright (C) 2008 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".

Re: SIGINT sent to executable

[teawater]

I think this is because
> Signal        Stop      Print   Pass to program Description
SIGINT        Yes       Yes     No              Interrupt

Stop mean that when inferior get a sigint, gdb will stop the inferior.

I think you can try to use command "handle" to set it to "No".


Thanks,
Hui



On Sun, Feb 1, 2009 at 12:18, Sushrut Sardeshmukh <bestbrain@gmail.com> wrote:
> I searched google before sending this email. But could not find the
> solution to the problem :(
>
> I am using ddd+gdb on Linux to debug executable which handles SIGINT
> to do graceful shutdown.
>
> gdb is set not to pass SIGINT to executable.
> (gdb) info signal
> Signal        Stop      Print   Pass to program Description
> SIGHUP        Yes       Yes     Yes             Hangup
> SIGINT        Yes       Yes     No              Interrupt
>
> However, when I press Interrupt button in ddd, executable gets SIGINT
> and it does graceful shutdown. Totalview debugger is able to interrupt
> execution. So it must be something wrong with the way I am setting up
> gdb.
>
> How can I interrupt the execution and get gdb prompt (to set another
> breapoint/ watchpoint) but not send SIGINT to executable ?
>
>
> Here is version info about gdb
> gdb --version
> GNU gdb 6.8
> Copyright (C) 2008 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".
>