Magnus Johansson schreef:
I totally get the second and third reads. But the first one, just moving
r24 to r17 will only work if r24 is only 0x00 or 0x01 not otherwise...?
What should I do?
Well I can't see all assembler so this is a bit of a guess. GCC is
probably going to do a
Erik Christiansen schreef:
On Sat, Jan 19, 2008 at 04:15:35PM +0100, Wouter van Gulik wrote:
How do I do such a thing? Using the lower 8 bits is possible when loading a
register so why not in a table?
In the past, we've encountered other relocations that aren't handled by
the avr port of
Anyway, some tests in gcc.c-torture/execute/builtins fail
because they
are expecting a sys/types.h include file.
I manually added a sys/types.h file to my avr-libc with just:
#include inttypes.h
#include stdint.h
and the testsuite passed a lot more tests from this section.
The
Hi everyone. I'm trying to simulate and trace a program developed with
avr-gcc, but I'm not able to see the value of any local variable with
ddd or avr-gdb.
when I wrote print variable I obtain this:
No symbol variable in current context.
Anyone knows how to fix it?
thanks
--
Nunca confies
It is possible that you have optimization turned on - so gcc will put
variables into register.
Or, perhaps your code has used variables it did not need and gcc will
optimise them away.
For example:
int i
for (i=0;i1000;i++);
will dissappear.
-O0 (or optimisation 0) will stop this but code
Magnus Johansson [EMAIL PROTECTED] wrote:
What should I do?
Post the entire function's C code as well as the resulting assembly --
without the obfuscating .lss style. (I'd personally prefer seeing the
generated assembly rather than the disassembled, but others might have
a different opinion on
The bug with PR27364 testcase appears recent.
It fails with my 4.3 experimental copy 13/12/2007
Ok with avr-gcc (GCC) 4.2.2 (WinAVR 20071221)
reduced testcase is:
long f2(long number_of_digits_to_use)
{
return ( number_of_digits_to_use * 11L ) ;
}
On Monday 21 January 2008 11:00, Weddington, Eric wrote:
A couple of quick comments/suggestions:
- Please drop -morder1. We generally don't recommend this to users, and
it looks like it really doesn't affect the results that much
- Can you also try with avr-gc 4.2.2 and avr-libc 1.6.1? These
Hi everyone. I'm trying to simulate and trace a program developed with
avr-gcc, but I'm not able to see the value of any local variable with
ddd or avr-gdb.
when I wrote print variable I obtain this:
No symbol variable in current context.
Anyone knows how to fix it?
thanks
--
Nunca confies
Paulo,
please report bug with PR27364 testcase.
I found that problem is somewhere in combine phase. Here it is trying to
stick together pairs of instruction to make another. It fails but that
is where load of constant dissappears.
So if you post bug, I can add further info.
Andy
PS
--- Javier Almansa Sobrino [EMAIL PROTECTED]
wrote:
Hi everyone. I'm trying to simulate and trace a
program developed with
avr-gcc, but I'm not able to see the value of any
local variable with
ddd or avr-gdb.
This is a common problem that is not simply solved.
gcc is optimizing your code
Quoting Andrew Hutchinson [EMAIL PROTECTED]:
Here are my test results using Paulo simulator.
Seems I have more tests!
I'm now running from SVN, so I'm always testing the latest version,
although my initial report was for gcc 4.2.2.
One thing I noticed is that almost everyday there is a
Quoting Andrew Hutchinson [EMAIL PROTECTED]:
The bug with PR27364 testcase appears recent.
It fails with my 4.3 experimental copy 13/12/2007
Ok with avr-gcc (GCC) 4.2.2 (WinAVR 20071221)
This got me thinking: it would be really nice if we could setup an
automated bisection test.
We could
-Original Message-
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
org] On Behalf Of Paulo Marques
Sent: Monday, January 21, 2008 5:15 PM
To: Andrew Hutchinson
Cc: avr-gcc-list@nongnu.org; Andy Hutchinson
Subject: Re: [avr-gcc-list] More results from the testsuite
with
-Original Message-
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
org] On Behalf Of Paulo Marques
Sent: Monday, January 21, 2008 5:14 PM
To: Andrew Hutchinson
Cc: avr-gcc-list@nongnu.org
Subject: Re: [avr-gcc-list] More results from the testsuite
with avrtest
One
- created a sys/types.h with:
#include inttypes.h
#include stdint.h
where do I put new include file? (directory relative to prefix root)
I have updated my GCC to same rev as you.
Ok with ldflags changes
So hopefully I can re-run in sync with you.
Andy
Quoting Weddington, Eric [EMAIL PROTECTED]:
[...]
Ok, to try to synchronize with you, so that our tests are consistent,
I'm running a test against svn revision 131704 (from today).
Changes I've made so far to solve some of the failures:
- created a sys/types.h with:
#include inttypes.h
-Original Message-
From: Paulo Marques [mailto:[EMAIL PROTECTED]
Sent: Monday, January 21, 2008 6:14 PM
To: Weddington, Eric
Cc: Andrew Hutchinson; avr-gcc-list@nongnu.org
Subject: RE: [avr-gcc-list] More results from the testsuite
with avrtest
Thanks, but please bare in
Ok my latest build is squawking - I assume because my binutils is out of
step.
../../../../gcc/libgcc/../gcc/config/avr/libgcc.S:283: Error: illegal
opcode mov
w for mcu avr3
To make this painless, can someone please point me at correct sources
for binutils - and assocated patch set (one
-Original Message-
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
org] On Behalf Of Andrew Hutchinson
Sent: Monday, January 21, 2008 6:56 PM
To: Paulo Marques; avr-gcc-list@nongnu.org
Subject: Re: [avr-gcc-list] More results from the testsuite
with avrtest
Ok my latest
Quoting Andrew Hutchinson [EMAIL PROTECTED]:
- created a sys/types.h with:
#include inttypes.h
#include stdint.h
where do I put new include file? (directory relative to prefix root)
In Linux, the default dir is /usr/local/avr/include so the full path
for the file becomes
Quoting Weddington, Eric [EMAIL PROTECTED]:
Ok my latest build is squawking - I assume because my
binutils is out of
step.
../../../../gcc/libgcc/../gcc/config/avr/libgcc.S:283: Error: illegal
opcode mov
w for mcu avr3
To make this painless, can someone please point me at correct sources
for
Please see the GCC project about this. IIRC, they already have a script
that does a binary search on failing test cases. IIRC, it is in the
contrib subdirectory.
Also this Delta implementation is very useful for minimizing an offending
test program (either before or after narrowing settling
-Original Message-
From: John Regehr [mailto:[EMAIL PROTECTED]
Sent: Monday, January 21, 2008 8:58 PM
To: Weddington, Eric
Cc: Paulo Marques; Andrew Hutchinson;
avr-gcc-list@nongnu.org; Andy Hutchinson
Subject: RE: [avr-gcc-list] More results from the testsuite
with avrtest
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