Hi Huihong,
Don't think MSVC compilation can be easily done (C compiler in MSVC
also don't support C99, whose array initialization by index feature is
heavily used).
Maybe easier will be to use MinGW64. Cross compilation process is just
a compilation with cross-compiler :) - you build GCC as Windows
executable capable to produce Linux binaries. There are docs on the net.
GCC version is around 3.4, IIRC.
Thanks,
Nikolay.
Huihong Luo пишет:
Hi Nilolay,
I will give it a try to see if msvc++ compilation of recompiler can be
easily done.
In the meantime, can you give some details on the cross compilation
process? which tool are you using? which version? more info is highly
appreciated.
Thanks for your very helpful info thus far,
Huihong
--- On *Tue, 7/14/09, Nikolay Igotti /<[email protected]>/* wrote:
From: Nikolay Igotti <[email protected]>
Subject: Re: [vbox-dev] Is gcc 3.3.x really necessary to compile
the recompiler?
To: "Huihong Luo" <[email protected]>
Cc: "VirtualBox developer's list" <[email protected]>
Date: Tuesday, July 14, 2009, 12:25 PM
Hi Huihong,
Actually this file is built on Windows using cross-compiler for
Linux target :). It's being built this way, because there was no
good MinGW for 64-bit at times it was done, and REM relies on GCC
extensions (notably global registers variables and some FP stuff)
to function correctly. Right approach would be to rebuild
recompiler with MSVC eventually, but it needs a volunteer (I think
it was done for QEMU, so should be feasible).
Also if taking MinGW64 approach don't forget calling convention
difference on AMD64 between Linux and Windows. REM relies on that
too (not too hard to fix, for sure, just need a bit of
understanding in TCG).
If you (or someone else on this list ) will do that - I can help
with getting patch integrated (never found enough time/desire to
do that myself).
Thanks,
Nikolay.
Huihong Luo пишет:
> Hi Nikolay,
> Thanks for the clarification. It's much easier without sticking
to the old gcc version.
> Yes, I noticed that VBoxRem2.rel is an ELF image. Can you
explain how this file is built? I assume it's done on Linux. Do
you use mingw toolchain on linux to do the cross compile? Since
it's ELF image, perhaps it's built from pure linux gcc (w/o cross
compile to windows)?
> I am trying to eliminate VBoxREM2.rel on windows using MingW64,
in other words, combining the current VBoxREM.dll + VBoxREM2.rel
==> VBoxREM.dll
> Thanks,
> Huihong
>
> --- On *Tue, 7/14/09, Nikolay Igotti /<[email protected]
<http://us.mc343.mail.yahoo.com/mc/[email protected]>>/*
wrote:
>
>
> From: Nikolay Igotti <[email protected]
<http://us.mc343.mail.yahoo.com/mc/[email protected]>>
> Subject: Re: [vbox-dev] Is gcc 3.3.x really necessary to compile
> the recompiler?
> To: "Huihong Luo" <[email protected]
<http://us.mc343.mail.yahoo.com/mc/[email protected]>>
> Cc: "VirtualBox developer's list" <[email protected]
<http://us.mc343.mail.yahoo.com/mc/[email protected]>>
> Date: Tuesday, July 14, 2009, 2:24 AM
>
> Hi Huihong,
>
>
> Recompiler should build OK with recent gcc. Gcc 3 limitation was
> applicable to 'old' recompiler, not relying on TCG for
> codegeneration. Windows 64-bit REM is built to ELF image,
not PE,
> thus MinGW shall be of little help to you.
>
> Thanks,
> Nikolay.
>
>
> Huihong Luo wrote:
> > The reason I asked is that gcc 4.4.3 seems to be working
fine on
> linux, so I am very confused about gcc requirement.
> > I am trying to use the latest gcc4.4.0 mingw64 bit on amd64 to
> build the recompiler, would this be a problem?
> > Does 3.3.x requirement only apply to mingw32? in other cases,
> gcc 4 is OK?
> > Thanks,
> >
> >
>
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>
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> >
>
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