Re: [ECOS] GDB Ctrl-C problem

["Xavier Wang" <xavierwang at ms19 dot url dot com dot tw>]

> > 
> > Hi,
> > 
> > I'm porting eCos to a MIPS architecture from TX39/JMR3904
> > template. My problem is that when I press Ctrl-C in GDB,
> > the program stops at breakpoint() (in hal_stub.c) which contains
> > only one instruction: HAL_BREAKPOINT(_breakinst). How
> > could I let the GDB stop exactly at the interrupted instruction
> > rather than the breakpoint instruction itself? By looking into
> > cyg_hal_user_break(), it seems that it might help if
> > CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS is defined,
> > since in that case it will call breakpoint() instead of calling
> > HAL_BREAKPOINT() directly, and it seems that breakpoint()
> > should handle the program counter stuff. But in fact the breakpoint()
> > contains only one instruction HAL_BREAKPOINT(), so it makes
> > no difference. Could cyg_hal_gdb_interrupt() help? Can I replace
> > breakpoint() with cyg_hal_gdb_interrupt() in cyg_hal_user_break()?
> > 
> > The following is my configurations:
> > 
> > - eCos v1.3.1
> > - GDB stubs
> >       GDB Ctrl-C support enabled
> >       GDB break support disabled
> >       Startup type = ROM
> >       loaded and run by ICE
> > - application
> >       GDB stubs included
> >       GDB Ctrl-C support enabled
> >       GDB break support disabled
> >       Work with a ROM Monitor = GDB stubs
> >       Startup type = RAM
> 
> This isn't right -if you are including stubs, you should have break support
> enabled and ctrl-c support disabled in your application.
> 
> Jifl
> -- 
> Red Hat, Rustat House, Clifton Road, Cambridge, UK. Tel: +44 (1223) 271062
> Maybe this world is another planet's Hell -Aldous Huxley || Opinions==mine
> 

Thanks, Jifl.

I'd changed the configuration of my application to have break support enabled and
Ctrl-C support disabled but still got the same result, ie, GDB stopped at
HAL_BREAKPOINT() in breakpoint().

Any suggestion?
Thanks.