Re: [coreboot] --divide!! and .xcompile

[Corey Osgood]

On Sun, Sep 5, 2010 at 1:46 AM, ali hagigat  wrote:
> Many thanks Corey. The link is OK, i was mistaken.
> My machine is Linux, Fedora 12, should i execute
> util/crossgcc/buildgcc to change the GCC of the system?
> So how util/crossgcc/buildgcc works? because there is already a GCC
> rpm installed, then it will install another one and the previous
> version is uninstalled?

No, the crossgcc toolchin will by default live in ~/xgcc (specified by
"TARGETDIR=`pwd`/xgcc", overridden with -D switch). To point to it,
you do:

$ PATH="/path/to/coreboot/util/crossgcc/xgcc/bin":$PATH; make

At least I think that's all you've got to do, haven't had to use it yet myself.

-Corey
> If I use Fedora 12 GCC, when it executes 'gcc -Wa,--divide" and the
> option(--divide) is unknown, how come it can compile the files by it
> without errors?
>
> On Sun, Sep 5, 2010 at 10:00 AM, Corey Osgood  wrote:
> > On Sun, Sep 5, 2010 at 1:15 AM, ali hagigat  wrote:
> > > Thank you all for the replies.
> > > Peter, the link you wrote is broken!
> > > http://sourceware.org/binutils/docs/as/i386_002dOptions.html#i386_002dOption...
> >
> > Works fine for me:
> >
> > --divide
> >    On SVR4-derived platforms, the character `/' is treated as a
> > comment character, which means that it cannot be used in expressions.
> > The `--divide' option turns `/' into a normal character. This does not
> > disable `/' at the beginning of a line starting a comment, or affect
> > using `#' for starting a comment.
> > > Should i execute, util/crossgcc/buildgcc to change and patch the
> > > original Linux GCC?
> >
> > No, crossgcc should fetch it's own "known good" version of gcc and
> > patch it. Trying to patch some other version of gcc will probably
> > fail.
> >
> > -Corey
> > > That will be all? or I may have to change some other things.
> > > Please excuse me if my question is a repeat.
> > >
> > > On Sat, Sep 4, 2010 at 5:50 PM, Peter Stuge  wrote:
> > > > ali hagigat wrote:
> > > > > It seems that there is no definition of --divide option for GNU
> > > > > assembler.
> > > >
> > > > http://sourceware.org/binutils/docs/as/i386_002dOptions.html#i386_002dOption...