Re: [linux-sh:03382] Problem when using GDB stub for SH2

Did you used sh-ipl+g as is for sh-2 only setting you serial line?
It should be working with the job done by Paul Mundt.
Is it rigth Paul?
Anyway Min ZOU, we have a working version for sh4 7044.

Regards

Fabio


On Thursday 20 January 2005 09:30, Min ZOU wrote:
> Hi,
>
> Sorry this problem is not really Linux related. It is about GDB stub
> implementation for SH2.
>
> I have modified the sh-stub.c from gdb-v6.3 source, and integrated to an
> existing monitor code for my SH2 target (SH7145). It is like a
> simplified version of "sh-ipl+g" for SH2. However I have problem to boot
> T-Kernel(yet another RTOS) using the gdb stub.
>
> I followed the procedure in this document:
> http://linuxsh.sourceforge.net/docs/gdb.php3
>
> Here is my steps:
>
> 1. boot the target into gdb stub mode (via trapa #32), which outputs:
>     $S05#b8
> 2. quit the terminal, and start gdb on host with the kernel ELF binary:
>     sh-elf-gdb kernel-rom.abs
> 3. the following is printed out:
>     0x00001314 in ?? ()
> 4. load the binary:
>     (gdb) load
> 5. start the kernel:
>     (gdb) c
>     Continuing.
>     Sending packet: $Z0,1ba26,2#70...Ack
>     Packet received:
>     Packet Z0 (software-breakpoint) is NOT supported
>     Sending packet: $m1ba26,2#27...Ack
>     Packet received: d107
>     Sending packet: $M1ba26,2:c320#39...Ack
>     Packet received: OK
>     Sending packet: $Hc0#db...Ack
>     Packet received:
>     Sending packet: $c#63...Ack
>
>
> After that, the gdb just hangs and has no responding...
> I am not sure if I missed any modification to the gdb-stub or the kernel
> code. Do I need to insert a software breakpoint in the kernel?
>
> Or, is any other simple way to test if the gdb stub is working?
>
> Thanks for any hints!
>
> P.S. I am not on the list. Please CC me.
>
> --
> Best regards,
> Min


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