RE: Problem in using gdb 6.8 to step code in flash

Jiju George T
2008-05-14T14:29:09Z

I am using configure --target=mipsel-linux --host=i686-pc-linux-gnu for
configuring gdb

I am trying to build a gdb that can both debug linux kernel and some code in
flash. Is it possible?

When I checked the gdb configure script, I can see below differences in MIPS
sde and mips Linux configurations

mips*-sde-elf*)
skipdirs="$skipdirs target-libiberty"
noconfigdirs="$noconfigdirs ${libgcj}"
if test x$with_newlib = xyes; then
noconfigdirs="$noconfigdirs gprof"
fi
libgloss_dir=mips
;;

mips*-*-linux*)
noconfigdirs="$noconfigdirs target-newlib target-libgloss"
;;

How do these configurations affect the stepping logic?

-----Original Message-----
From: Daniel Jacobowitz [mailto:drow@false.org]
Sent: 14 May 2008 14:08
To: Jiju George T
Cc: gdb@sourceware.org
Subject: Re: Problem in using gdb 6.8 to step code in flash

On Wed, May 14, 2008 at 01:48:38PM +0100, Jiju George T wrote:
>    I checked the difference between these two and fond out that the issue
is
> caused by the difference in the way sde-gdb and gdb 6.8 does step
operation.
> SDE GDB issues step(s) command to GDB server where as gdb 6.8 tries to set
> breakpoint on next line and issue continue(c) command. Any idea on why the
> two gdb variants behave differently for step operation using same GDB
> server? How gdb decides what mechanism to be used for stepping operation?

Is your GDB configured for mips-linux? The SDE debugger is
configured for mips-elf. Try that configuration instead.