As Oliver Večerník wrote:
> > Here how it looked for me (AVR-GDB 7.3.1, AVaRICE running on an
> > ATmega1284P which has a few more IO registers than your ATmega164P):
>
> Unfortunately I can't get 7.3.1 compiled on my system.
Why not?
> I can confirm
> the same behaviour with the latest binutils-gdb (GNU gdb (GDB)
> 7.7.50.20140120-cvs) code and Ubuntu 13.10:
Yes, I can also confirm the bug for GDB 7.6.2 (which is the latest
official release).
Apparently, someone broke target_read_alloc() (or its API changed?).
The infinite loop happens in avr-tdep.c, function
avr_io_reg_read_command():
/* Find out how many io registers the target has. */
bufsiz = target_read_alloc (¤t_target, TARGET_OBJECT_AVR,
"avr.io_reg", &buf);
This target_read_alloc() is supposed to return the number of IO
registers (the value passed from AVaRICE), but it never returns.
Please write a GDB bug report for this.
> BTW: is there any specific reason (besides it works) for using such an
> ancient version on your system?
I wouldn't consider it "ancient" (it's about a couple of years old),
but the reason is: yes, because it works. With minor bugs, yes, like
GDB's unability to correctly handle the AVR's Harvard architecture,
and always getting a mixup between code and data pointers when
specifying an address. But in general, it is usable.
I simply never blindly upgraded it without giving it some testing
before.
> Is FreeBSD, I suppose, preferred over
> (Ubuntu) Linux for AVR work?
I don't think so. Currently, I lag quite behind in upgrading the
FreeBSD ports, and in other areas (like GCC), it's really due to
upgrade because many things changed to the better recently.
--
cheers, Joerg .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)
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