Re: A very silly question

[Dimitry Andric <dimitry at andric dot com>]

On 2004-11-10 at 19:36:04 Daniel Kegel wrote:

> I have a feeling gcc-3.4.3 should be ok for that range of chips
> (it gets so much use on i686 it can't be too wrong there,
> and I assume the others are similar enough to benefit from that).

I still need to try gcc 3.4.2 on a big C++ app I'm involved with at
work.  This is because gcc 3.4.0 ICE'd on it, hope it is fixed now...


> Likewise, glibc-2.3.3 would be a reasonable choice, at least if
> you have enough RAM on the target.   For low memory systems
> you might need glibc-2.2.5 or even uclibc.

Actually, for an embedded device I'm working on, we even use glibc
2.1.x.  This is because glibc 2.2.x and higher use 2 MB of stack space
per thread, whereas 2.1.x started with 16 kB, but using mmap() with
MAP_GROWSDOWN.  Actual commit here:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/linuxthreads/manager.c.diff?r1=1.54&r2=1.55&cvsroot=glibc&f=h

So if you don't have swap, as is likely on such a device, you run out
of memory very quickly, if you want to have a multithreaded
application...

Anyway, it might be better to use another libc, but then the
application programmers might start complaining about not having
glibc's bells and whistles. :)

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