[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[avr-gcc-list] Tests and patches
From: |
Andrew Hutchinson |
Subject: |
[avr-gcc-list] Tests and patches |
Date: |
Sat, 22 Mar 2008 16:27:06 -0400 |
User-agent: |
Thunderbird 2.0.0.12 (Windows/20080213) |
All,
I found old PC and got Debian loaded to help with testing instead of
Cygwin. Much to my amazement it worked - after I got the pre-requisite
packages loaded.
On a slower PC, it is about 10x faster at testing and a bit faster
building GCC. The shell stuff (including make) hurts Cygwin.
With Putty as SSH terminal and SAMBA to mount my windows shares I built
from exactly the same sources (located on XP).
The testsuite runs cleaner - Cygwin version has a few errors related to
include files just before tests run. I've always ignored them - the
effects are benign. I got same numbers on both systems (which amazed me!).
I have been plowing thru the bugs and attempting to create patches that
can be applied - (mostly the AVR bit of gcc.). There are quite a few
now waiting for approval. Mike Stein was kind enough to offer
regression tests on i686 - which give patches that change GCC some
credibility. Still it's a long wait. (Maybe I need to use Beer or
Donuts to get things moving?).
Today I managed to figure out PR34210 - which relates to 16 bit function
missing from libgcc for the AVR target. There's a whole bunch of
testsuite failures related to this. This took torture/execute failures
down from 66 to 44. My working version also had a couple of other
patches so don't expect to see 66 on your copy ! (Think its more like 82
out of the box).
(It would be even lower than 44 but some tests added recently are
incorrect - nothing wrong with gcc.)
I will post patch shortly for PR34210.
I exclusively use AVRTEST as simulator - since its easier to understand
and runs fast!
To get down towards 66 failures you have to skip certain "no hope"
tests. Taken from earlier work by Bjorn and Paulo we disable
trampolines and long long using the simulator test file:
set_board_info no_long_long 1
set_board_info obj_format "elf"
set_board_info cflags " -DSIGNAL_SUPPRESS -mmcu=atmega128 "
set_board_info gcc,stack_size 2048
set_board_info gcc,no_trampolines 1
set_board_info gcc,no_pch_tests 1
set_board_info ldflags "/home/Andy/dejagnuboards/exit.c -Wl,-u,vfprintf
-lprintf_flt -Wl,-Tbss=0x802000,--defsym=__heap_end=0x80ffff"
One day long long might be switched back on again - it should work but
there are few gaps in the implementation.
Enough rambling!
Andy
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [avr-gcc-list] Tests and patches,
Andrew Hutchinson <=