[Qemu-devel] build failure on x86, any suggestions?

[Peter Volkov <pva@gentoo.org>]

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Hello.

I just wanted to point developers attention to the following bug:
bugs.gentoo.org/212351 , comment #11 and further. The problem is that
qemu does not compile any more on x86. I've tried recent snapshot
(2008-03-15_05) and the problem persist there.

The problem gentoo is that previous versions are known to be affected to
security vulnerability so we'll have to mask it soon, while version
which does not build successfully will be masked too as there is no
reason to keep broken package in stable. Could anybody of developers
suggest anything on this issue? Thank you very much in advance!


The actual build error:

gcc -Wall -O2 -g -fno-strict-aliasing  -fno-reorder-blocks  -fno-gcse
-fno-optimize-sibling-calls  -fno-crossjumping  -fno-align-labels
-fno-align-jumps  -fno-align-functions   -mpreferred-stack-boundary=2
-fomit-frame-pointer  -m32 -I. -I..
-I/home/pva/work/qemu/qemu-snapshot-2008-03-15_05/target-i386
-I/home/pva/work/qemu/qemu-snapshot-2008-03-15_05 -MMD -MP -DNEED_CPU_H
-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
-I/home/pva/work/qemu/qemu-snapshot-2008-03-15_05/tcg
-I/home/pva/work/qemu/qemu-snapshot-2008-03-15_05/tcg/i386
-I/home/pva/work/qemu/qemu-snapshot-2008-03-15_05/fpu
-I/home/pva/work/qemu/qemu-snapshot-2008-03-15_05/linux-user
-I/home/pva/work/qemu/qemu-snapshot-2008-03-15_05/linux-user/i386 -c -o
op.o /home/pva/work/qemu/qemu-snapshot-2008-03-15_05/target-i386/op.c
/home/pva/work/qemu/qemu-snapshot-2008-03-15_05/target-i386/ops_sse.h:
In function `op_psrlq_mmx':
/home/pva/work/qemu/qemu-snapshot-2008-03-15_05/target-i386/ops_sse.h:213: error: unable to find a register to spill in class `GENERAL_REGS'
/home/pva/work/qemu/qemu-snapshot-2008-03-15_05/target-i386/ops_sse.h:213: error: this is the insn:
(insn:HI 36 35 37
3 /home/pva/work/qemu/qemu-snapshot-2008-03-15_05/target-i386/ops_sse.h:207 (parallel [
            (set (reg:DI 63 [ <variable>.q ])
                (lshiftrt:DI (reg:DI 63 [ <variable>.q ])
                    (subreg:QI (reg/v:SI 60 [ shift ]) 0)))
            (clobber (scratch:SI))
            (clobber (reg:CC 17 flags))
        ]) 309 {lshrdi3_1} (insn_list 33 (insn_list 35 (nil)))
    (expr_list:REG_DEAD (reg/v:SI 60 [ shift ])
        (expr_list:REG_UNUSED (reg:CC 17 flags)
            (expr_list:REG_UNUSED (scratch:SI)
                (nil)))))

-- 
Peter.

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