Re: cross builds to avr fail

["Joel Sherrill <joel at OARcorp dot com>" <joel dot sherrill at OARcorp dot com>]

Eric Botcazou wrote:
> > Building a --target=avr compiler currently fails because
> >
> > /usr/src/packages/BUILD/gcc-4.1.0-20051110/obj-x86_64-suse-linux/./gcc/xgcc
> > -B/usr/src/packages/BUILD/gcc-4.1.0-20051110/obj-x86_64-suse-linux/./gcc/
> > -B/opt/cross/avr/bin/ -B/opt/cross/avr/lib/ -isystem
> > /opt/cross/avr/include -isystem /opt/cross/avr/sys-include -O2  -O2 -O2
> > -fmessage-length=0 -Wall -D_FORTIFY_SOURCE=2 -g -U_FORTIFY_SOURCE
> > -DIN_GCC -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes
> > -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -DDF=SF
> > -Dinhibit_libc -mcall-prologues -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
> > -Dinhibit_libc -I. -I. -I../../gcc -I../../gcc/. -I../../gcc/../include
> > -I../../gcc/../libcpp/include  -DL_ashrdi3 -c ../../gcc/libgcc2.c -o
> > libgcc/./_ashrdi3.o      ../../gcc/libgcc2.c: In function '__muldi3':
> > ../../gcc/libgcc2.c:511: error: total size of local objects too large
> >
> > which does not make any sense.  The above is for a x86_64 host, but I
> > see this errors everywhere.
>
>
> I guess the sanity check I've added doesn't apply to micro-controllers.  Try 
> the attached patch.

avr-rtems4.7 fails differently and apparently further along (gcc head, 
newlib 1.13.0, binutils 2.16.1)

home/joel/gcc-work/head/b-avr-rtems4.7/./gcc/xgcc 
-B/home/joel/gcc-work/head/b-avr-rtems4.7/./gcc/ -nostdinc 
-B/home/joel/gcc-work/head/b-avr-rtems4.7/avr-rtems4.7/avr3/newlib/ 
-isystem 
/home/joel/gcc-work/head/b-avr-rtems4.7/avr-rtems4.7/avr3/newlib/targ-include 
-isystem /home/joel/gcc-work/head/gcc-head-test/newlib/libc/include 
-B/home/joel/gcc-41-test//avr-rtems4.7/bin/ 
-B/home/joel/gcc-41-test//avr-rtems4.7/lib/ -isystem 
/home/joel/gcc-41-test//avr-rtems4.7/include -isystem 
/home/joel/gcc-41-test//avr-rtems4.7/sys-include  -mmcu=avr3 
-DPACKAGE=\"newlib\" -DVERSION=\"1.13.0\"  -I. 
-I../../../../../../gcc-head-test/newlib/libc/misc  -Os 
-DPREFER_SIZE_OVER_SPEED -mcall-prologues -DHAVE_GETTIMEOFDAY 
-DMALLOC_PROVIDED -DEXIT_PROVIDED -DMISSING_SYSCALL_NAMES 
-DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_OPENDIR -DNO_EXEC 
-DHAVE_FCNTL -fno-builtin      -O2 -g -O2   -mmcu=avr3 -c 
../../../../../../gcc-head-test/newlib/libc/misc/init.c
../../../../../../gcc-head-test/newlib/libc/misc/init.c: In function 
'__libc_fini_array':
../../../../../../gcc-head-test/newlib/libc/misc/init.c:59: error: 
unable to find a register to spill in class 'BASE_POINTER_REGS'
../../../../../../gcc-head-test/newlib/libc/misc/init.c:59: error: this 
is the insn:
(insn 64 31 32 2 
../../../../../../gcc-head-test/newlib/libc/misc/init.c:56 (set 
(mem/c:HI (plus:HI (reg/f:HI 28 r28)
                (const_int 1 [0x1])) [5 S2 A8])
        (reg:HI 24 r24)) 12 {*movhi} (nil)
    (nil))
../../../../../../gcc-head-test/newlib/libc/misc/init.c:59: internal 
compiler error: in spill_failure, at reload1.c:1890





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Joel Sherrill, Ph.D.             Director of Research & Development
joel@OARcorp.com                 On-Line Applications Research
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