Re: [Qemu-devel] [PATCH 0/5] Enable building of op.o on gcc4

[Alexander Graf]

On Jan 17, 2008, at 11:34 PM, Ismail Dönmez wrote:

> Thursday 17 January 2008 19:00:11 tarihinde şunları yazmıştınız:
> > Hi,
> >
> > On Thu, 17 Jan 2008, Ismail Dönmez wrote:
> > > Thanks but ppc target doesn't work here with gcc 4.3 trunk , i686- 
> > > linux :
> > >
> > > gcc -mtune=native -march=native -O2 -pipe -fomit-frame-pointer
> > > -Wstrict-overflow -Wall -O2 -g -fno-strict-aliasing -fomit-frame- 
> > > pointer
> > > -I. -I.. -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/target-ppc
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1 -MMD -MP -DNEED_CPU_H
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/linux-user
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/linux-user/ppc - 
> > > D_GNU_SOURCE
> > > -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/fpu-DHAS_AUDIO
> > > -DHAS_AUDIO_CHOICE -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/ 
> > > slirp    -c
> > > -o cpu-exec.o /var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/cpu-exec.c
> > > ../dyngen -g -o gen-op.h op.o
> > > dyngen: ret or jmp expected at the end of op_divw
> > >
> > > This is for ppc-linux-user .
> >
> > Does not happen for me, with gcc 4.1.2 on OpenSUSE 10.2.
> >
> > > Also arm-linux-user is broken :
> > >
> > > gcc -mtune=native -march=native -O2 -pipe -fomit-frame-pointer
> > > -Wstrict-overflow -Wall -O2 -g -fno-strict-aliasing -I. -I..
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/target-mips
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1 -MMD -MP -DNEED_CPU_H
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/linux-user
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/linux-user/mips - 
> > > D_GNU_SOURCE
> > > -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/fpu  -DHAS_AUDIO
> > > -I/var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/slirp    -c -o helper.o
> > > /var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/target-mips/helper.c
> > > /var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/target-arm/op_iwmmxt.c: In
> > > function 'op_iwmmxt_movq_wRn_M0':
> > > /var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/target-arm/op_iwmmxt.c:176:  
> > > error:
> > > unable to find a register to spill in class 'GENERAL_REGS'
> > > /var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/target-arm/op_iwmmxt.c:176:  
> > > error:
> > > this is the insn:
> > > (insn:HI 8 17 18
> > > 2 /var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/target-arm/op_iwmmxt.c: 
> > > 175 (set
> > > (mem/s/j:DI (plus:SI (plus:SI (mult:SI (reg/f:SI 59)
> > >                        (const_int 8 [0x8]))
> > >                    (reg/f:SI 58 [ env.2032 ]))
> > >                (const_int 4 [0x4])) [0 <variable>.iwmmxt.regs S8  
> > > A32])
> > >        (reg:DI 60 [ <variable>.iwmmxt.val ])) 63 {*movdi_2}
> > > (expr_list:REG_DEAD (reg:DI 60 [ <variable>.iwmmxt.val ])
> > >        (expr_list:REG_DEAD (reg/f:SI 59)
> > >            (expr_list:REG_DEAD (reg/f:SI 58 [ env.2032 ])
> > >                (nil)))))
> > > /var/pisi/qemu-0.9.1-9/work/qemu-0.9.1/target-arm/op_iwmmxt.c:176:
> > > confused by earlier errors, bailing out
> >
> > I do not get this error, either.
>
> Might be a GCC 4.3 thing :-/
>
> Regards,
> ismail
>
> --
> Never learn by your mistakes, if you do you may never dare to try  
> again.

This looks rather like an old version of the patch. Are you sure you  
did a ./configure after applying the newest version of the patch (the  
one that modifies the configure script)?


Alex