Re: egcs: Problems compiling recen Linux kernels on intel

[Horst von Brand <vonbrand at inf dot utfsm dot cl>]

Jeffrey A Law <law@hurl.cygnus.com> said:
>   In message <199712041803.KAA13273@atrus.synopsys.com>you write:

>   > > > Please don't get the Linux people starting using -fno-strength-reduce
>   > > > again.  You're just saying "I want my kernel to run more slowly".
>   > > > That workaround is inferior to using the patch.

>   > > What patch? The FAQ asks for a workaround, this is one.

>   > I understand that there is a patch to fix this problem ... sorry I don't
>   > have a pointer to it.  It has been applied to the 2.1.x kernels.

> Let's make sure we're talking about the same problem.

> There's at least two problems with process.c -- one causes egcs
> to crash building process.c, the other causes gcc-2.8 to mis-compile
> process.c.

I'm talking about the crash here.

> [ They may actually be the same bogus asm statement -- I don't know. ]

> I know that newer 2.1.x kernels have the fix for the gcc-2.8 mis-
> compilation.  I don't know if those kernels have a fix for the
> egcs abort when compiling process.c.

egcs-971201 still aborts on linux-2.1.70 for i586. I'm going to take a
closer look at this (thanks for the feedback you gave me earlier!).

> [ Note the next egcs snapshot will have the ADDRESSOF optimizations
>   so the mis-comilation problem will be an issue for egcs real soon.]

Care to elaborate?
-- 
Dr. Horst H. von Brand                       mailto:vonbrand@inf.utfsm.cl
Departamento de Informatica                     Fono: +56 32 654431
Universidad Tecnica Federico Santa Maria              +56 32 654239
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