arm simulator

arm simulator

[Frans J King]

Hi,

(brief intro)

I've finally got gdb working so that I can run arm-elf compiled programs
properly (previously they just hung and couldm't be debugged). The
arm-elf programs are using newlib 1.9.0 but this has much less in terms
of functions than glibc. I've tried to compile glibc with the arm-elf
gcc compile but with no success. So, I compiled and arm-linux C compiler
and compiled glibc with it instead. The compile goes without a hitch,
but when I come to make a corresponding arm-linux-gdb I don't seem to
get a working simulator. I can still compile C programs with
arm-linux-gcc but when I try to run them through arm-linux-run, the
simulator halts, but doesn't exit. I have to press CTRL+C to be able to
get back to the console.

Does anyone have any ideas on this. Is my glibc library messed up or
does the arm-linux-run armulator simply not work?

Thanks

Frans King

Re: arm simulator

[Philip Blundell]

In message < 1004155101.32715.12.camel@GANDALF >, Frans J King writes:
>Does anyone have any ideas on this. Is my glibc library messed up or
>does the arm-linux-run armulator simply not work?

The simulator doesn't support Linux.

p.

arm simulator

[Jens-Christian Lache]

Hi! A couple of weeks ago I mentioned a bug in the arm simulator. See:
http://sources.redhat.com/ml/gdb/2001-02/msg00343.html

In armsupp.c function ARMul_FixCPSR determines if the current mode is
allowed to access the CPSR by looking at the banked
registers. Unfortunately, both System Mode and User Mode use the same
banked registers. I proposed a fix, but it didn't cover thumb mode.

Can anybody please take care of it? That would be great!

Please send me some feedback to lache@tu-harburg.de, I am not on the list
at this point in time.

Regards,

Jens-Christian

Jens-Christian Lache
Technische Universitaet Hamburg-Harburg
www.tu-harburg.de/~sejl1601
Mail:
lache@tu-harburg.de
lache@ngi.de
Tel.: 
+0491759610756