Re: [Xen-devel] change to test_x86_emulator.c break gcc -fPIC flag, compile err

["Jan Beulich" <JBeulich@xxxxxxxx>]

 >>> On 16.09.14 at 03:57, <dennis.yxun@xxxxxxxxx> wrote:
> hello Jan Beulich:
> 
> following commit break gcc -fPIC flag, but compiles fine if turn it off.
> I'm using stable-4.4 branch

So where does the -fPIC come from? HOSTCFLAGS doesn't include it
afaict, and it also doesn't seem very useful for a _test executable_
like this one. I assume you realize that you passing arbitrary flags
to gcc to manually compile this file isn't something we really care
about much: If you were to contribute an acceptable patch to
address the issue, that would be fine, but unless building within the
provided build environment fails I don't think we'd spend time on
finding a solution for you.

Jan

> commit 91a13bcf99d1a47f6f7ccd364b95b1b8500c2be2
> Author: Jan Beulich <jbeulich@xxxxxxxx>
> Date:   Fri Aug 22 14:07:36 2014 +0200
> 
>     x86_emulate: properly do IP updates and other side effects on success
> 
> 
> x86_emulator # pwd
> /var/tmp/portage/app-emulation/xen-tools-4.4.1/work/xen-4.4.1/tools/tests/x8
> 6_emulator
>  x86_emulator # gcc -Wall -Werror -Wstrict-prototypes -O2
> -fomit-frame-pointer -fno-strict-aliasing
> -Wdeclaration-after-statement
> -I/var/tmp/portage/app-emulation/xen-tools-4.4.1/work/xen-4.4.1/tools/tests/
> x86_emulator/../../../tools/include
> -c -fPIC -g -o test_x86_emulator.o test_x86_emulator.c
> /tmp/ccRSETSJ.s: Assembler messages:
> /tmp/ccRSETSJ.s:2685: Error: missing or invalid displacement
> expression `vmovsd_to_mem_len@GOTPCREL'
> /tmp/ccRSETSJ.s:2782: Error: missing or invalid displacement
> expression `vmovdqu_from_mem_len@GOTPCREL'
> /tmp/ccRSETSJ.s:2997: Error: missing or invalid displacement
> expression `movaps_from_mem_len@GOTPCREL'
> /tmp/ccRSETSJ.s:3064: Error: missing or invalid displacement
> expression `movdqu_to_mem_len@GOTPCREL'
> /tmp/ccRSETSJ.s:3190: Error: missing or invalid displacement
> expression `movdqu_from_mem_len@GOTPCREL'
> /tmp/ccRSETSJ.s:3449: Error: missing or invalid displacement
> expression `movsd_to_mem_len@GOTPCREL'
> /tmp/ccRSETSJ.s:3557: Error: missing or invalid displacement
> expression `vmovdqu_to_mem_len@GOTPCREL'
> /tmp/ccRSETSJ.s:3665: Error: missing or invalid displacement
> expression `movq_from_mem_len@GOTPCREL'
> /tmp/ccRSETSJ.s:3829: Error: missing or invalid displacement
> expression `movq_to_mem_len@GOTPCREL'
> /tmp/ccRSETSJ.s:4210: Error: missing or invalid displacement
> expression `vmovaps_from_mem_len@GOTPCREL'




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