[ECOS] arm7 lpc2xxx abort data exception

Sergei Gavrikov sergei.gavrikov@gmail.com
Fri Jan 25 22:06:00 GMT 2008


On Fri, Jan 25, 2008 at 01:55:06PM -0800, Jean-David Vuillemain wrote:
> Yes i use a mixture of tool in fact...
> 
> "Can you undo for GCC-3.2.1 and rebuild new CVS eCos with original tools?"
> Could you be more explicit please.

I wonder, will you get a hang on a startup stage when you'll build eCos
with GNU toolchain from public FTP (a.k.a eCosCentric tools)? And what
about behaviors of built application for ROM startup? Does that hang
too?

Sergei

> JD
> 2008/1/25, Sergei Gavrikov <sergei.gavrikov@gmail.com>:
> > On Fri, Jan 25, 2008 at 10:21:39AM -0800, Jean-David Vuillemain wrote:
> > > I can run my application with GDB but the breakpoints you point out
> > > are not reachable. The program goes straight to the data abort at
> > > 0x00000010 after a few instructions.
> > > I didn't get any assertion message.
> >
> > I have another question, Is it possible that you use a mixture of tools?
> > Is your GNU toolchain a home-cooked stuff? Does the error occur with
> > GCC-3.2.1? If you build eCos with a recent tolchain, it could be that
> > you did modify CYGBLD_GLOBAL_CFLAGS and your startup become a broken...
> > Can you undo for GCC-3.2.1 and rebuild new CVS eCos with original tools?
> >
> > Sergei
> >
> > > 2008/1/25, Sergei Gavrikov <sergei.gavrikov@gmail.com>:
> > > > On Thu, Jan 24, 2008 at 03:38:14PM -0800, Jean-David Vuillemain wrote:
> > > > > hi,
> > > > >
> > > > > i have been working with ecos for a couple of months now. I had no
> > > > > problem at all with a 8 months old repository source files and my own
> > > > > port for my target board. After some problem with my working
> > > > > environment  and updating the ecos source files, i can't have my old
> > > > > work and my new  code running on the board.
> > > >
> > > > Working with lpc2xxx targets I update eCos repository every week.  Did
> > > > you try to build eCos with a tracing support? Import 2 lines the below
> > > > with ecosconfig and rebuild eCos
> > > >
> > > > cdl_option CYGPKG_INFRA_DEBUG {user_value 1};
> > > > cdl_option CYGDBG_USE_TRACING {user_value 1};
> > > >
> > > > Can you run your application in GDB as
> > > >
> > > > b cyg_start
> > > > b cyg_assert_fail
> > > > c
> > > > c
> > > >
> > > > I wonder, Did you get same assertion?
> > > >
> > > > ASSERT FAIL: <1>lpc2xxx_misc.c[359]hal_interrupt_configure() Invalid vector
> > > >
> > > >
> > > > Sergei
> > > >
> > > > > It seems that my code always go through the same steps and finishes by
> > > > >  an exception abort data.
> > > > >
> > > > > Here is the code where it fails:
> > > > > 0x80020070 <start>:    ldr r0, [pc, #1020]    ; 0x80020474 <.init_flag>
> > > > > 0x80020074 <start+4>:  ldr r1, [r0]
> > > > > 0x80020078 <start+8>:  cmp r1, #0    ; 0x0
> > > > > 0x8002007c <start+12>: bne 0x80020078 <start+8>
> > > > > 0x80020080 <start+16>: ldr r1, [pc, #196]    ; 0x8002014c <init_done>
> > > > > 0x80020084 <start+20>: str r1, [r0]
> > > > > 0x80020088 <start+24>: mov r0, #0    ; 0x0
> > > > > 0x8002008c <start+28>: ldr r1, [pc, #988]    ; 0x80020470
> > > > > <.__exception_handlers>
> > > > > 0x80020090 <start+32>: cmp r7, #19    ; 0x13
> > > > > 0x80020094 <start+36>: beq 0x800200a0 <start+48>
> > > > > 0x80020098 <start+40>: ldr r2, [r1, #40]
> > > > > 0x8002009c <start+44>: str r2, [r0, #40]
> > > > > 0x800200a0 <start+48>: ldr r2, [r1, #24]
> > > > > 0x800200a4 <start+52>: str r2, [r0, #24]    <-- this line fails on my
> > > > > old and new programs
> > > > > It ends up in an abort data:
> > > > > 0x00000010 swp             r1, r3, [r2]
> > > > >
> > > > > Someone has a hint to solve this problem??
> > > > >
> > > > > Thanks in advance.
> > > > >
> > > > > Jean-David
> > > > >
> > > > > --
> > > > > Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> > > > > and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
> > > >
> > >
> > >
> > > --
> > > Jean-David Vuillemain
> > > jdvuillemain@gmail.com
> >
> 
> 
> -- 
> Jean-David Vuillemain
> jdvuillemain@gmail.com

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