Pure LFS hint v.1.0: About gcc-2.95.3

Ronald Hummelink ronald at hummelink.xs4all.nl
Fri Apr 4 03:46:48 PST 2003


On Fri, 2003-04-04 at 11:12, Vladimir Ogay wrote:
> On Wed, 2003/04/02 at 14:48,  Ronald Hummelink wrote:
> 
> VO> In my humble opinion, gcc-2.95.3 needs to be compiled twice (at the
> VO> least) for build a fully "self-contained" and "self-hosting" gcc.
> 
> RH> I don't think so, and this is why:
> RH> You build with 'trusted' binutils, glibc and gcc.
> RH> gcc does bootstrapping, which means JUST the first stage compiler is
> RH> build with gcc 3.2.2
> RH> The GCC bootstrap does a 3 stage bootstrap, so the installed compiler is
> RH> already build with gcc 2.95.3
> 
> The gcc bootstrap for gcc-3.2.2 does a 3 stage bootstrap too, but we
> build gcc-3.2.2 once again in Chapter 5.
> 
> And I think that gcc-3.2.2 is not 'trusted' compiler for gcc-2.95.3,
> like as host c compiler (gcc-2.95.3 in the hint) is not 'trusted' for
> gcc-3.2.2, which compiled in Chapter 5. 
> 
> 

The first pass1 gcc3 in chapter5 is build verses untrusty host glibc. It
does use our new binutils, but those binutils are still linked verses
host glibc and thus we use untrusty host (libc) code for the first gcc.


> ---
> Best regards, Vladimir.
-- 
Linux is like a small snowball rolling downhill. Microsoft is just
waiting down the mountain...

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