Re: gcc3 "millicode" problems with sh3 (toolchain/22452)

On Wed, Sep 03, 2003 at 10:22:55 -0700, [email protected] wrote:

> > # gcc2
> > $ /usr/nb/tools/bin/shle--netbsdelf-gcc -dumpspecs | grep -e -lgcc
> > %{!symbolic:%{!shared:-lgcc}%{shared:-lgcc_pic}}
> > 
> > # gcc3
> > $ /usr/nb3/tools/bin/shle--netbsdelf-gcc -dumpspecs | grep -e -lgcc
> > %{!shared:%{!symbolic: -lgcc}}
> 
> I'm not sure that it would be right to do it, either.
> 
> I believe in the new gcc world (not necessarily the new netbsd gcc
> world; i've not been paying attention to netbsd's gcc integration
> work), the right thing is to link with the GCC shared library.
> 
> That has the effect of getting you one copy of the exception handling
> functions and data structures, which is important (and works much
> better than having independent copies of them 8-).

That's what worries me too, but I don't know libgcc internals at all
(the part that's responsible for the exception handling, &c).

FWIW, Kaz Kojima (linux/sh gcc person) told me that's what linux do,
that's all I know.


> I'm not sure that linking libgcc into shlibs directly will do the
> right thing w.r.t. this issue.

Ok, then we do need a separate "millicode" library to be linked into
shlibs (apparently hppa needs something like that as well).


SY, Uwe
-- 
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