Re: kvm-18 compilation error

[Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>]

Omar Khan wrote:
> hi,
>    I am having trouble compiling kvm-18 on suse10.2. 'make' is giving the
> following error:
>   

> /opt/gcc33/bin/gcc-3.3 -I /root/kvm-18/qemu/../user -Wall -O2 -g
> -fno-strict-aliasing -I /root/kvm-18/kernel/include -fomit-frame-pointer -I.
> -I.. -I/root/kvm-18/qemu/target-i386 -I/root/kvm-18/qemu -D_GNU_SOURCE
> -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D__user= -I/root/kvm-18/qemu/fpu
> -DHAS_AUDIO -I/root/kvm-18/qemu/slirp  -c -o qemu-kvm.o /root/kvm-18/qe
> mu/qemu-kvm.c
> /root/kvm-18/qemu/qemu-kvm.c: In function `kvm_cpu_exec':
> /root/kvm-18/qemu/qemu-kvm.c:447: warning: implicit declaration of 
> function `exit'
> /root/kvm-18/qemu/qemu-kvm.c: In function `kvm_shutdown':
> /root/kvm-18/qemu/qemu-kvm.c:599: warning: implicit declaration of 
> function `qemu_system_reset_request'
> /root/kvm-18/qemu/qemu-kvm.c: In function `kvm_qemu_init_env':
> /root/kvm-18/qemu/qemu-kvm.c:732: error: unable to find a register to 
> spill in class `SIREG'
> /root/kvm-18/qemu/qemu-kvm.c:732: error: this is the insn:
> (insn:HI 37 35 38 0 0x4074ab00 (parallel [
>             (set (reg:SI 1 edx [67])
>                 (const_int 0 [0x0]))
>             (set (reg/f:SI 0 eax [64])
>                 (plus:SI (ashift:SI (reg:SI 2 ecx [66])
>                         (const_int 2 [0x2]))
>                     (reg/f:SI 0 eax [64])))
>             (set (reg/f:SI 2 ecx [65])
>                 (plus:SI (ashift:SI (reg:SI 2 ecx [66])
>                         (const_int 2 [0x2]))
>                     (reg/v/f:SI 59)))
>             (set (mem/s:BLK (reg/f:SI 0 eax [64]) [0 copy+0 S25712 A128])
>                 (mem/s:BLK (reg/v/f:SI 59) [0 S25712 A128]))
>             (use (reg:SI 2 ecx [66]))
>             (use (reg:SI 19 dirflag))
>         ]) 454 {rep_movsi} (insn_list 3 (insn_list 32 (insn_list 34 (insn_list
> 35 (nil)))))
>     (expr_list:REG_DEAD (reg:SI 19 dirflag)
>         (expr_list:REG_DEAD (reg:SI 2 ecx [66])
>             (expr_list:REG_UNUSED (reg:SI 1 edx [67])
>                 (expr_list:REG_UNUSED (reg/f:SI 0 eax [64])
>                     (expr_list:REG_UNUSED (reg/f:SI 2 ecx [65])
>                         (nil)))))))
> /root/kvm-18/qemu/qemu-kvm.c:732: confused by earlier errors, bailing out
> make[2]: *** [qemu-kvm.o] Error 1
> make[2]: Leaving directory `/root/kvm-18/qemu/i386-softmmu'
> make[1]: *** [subdir-i386-softmmu] Error 2
> make[1]: Leaving directory `/root/kvm-18/qemu'
> make: *** [qemu] Error 2
>
>
> any ideas what might be going wrong?
>
>   

You might try with gcc 3.4.6, which most people are using for qemu.  
Alternatively, ./configure --qemu-cc=gcc --disable-gcc-check, but then 
you lose the ability to run with the -no-kvm switch.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.


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