Re: sim/arm/armos.c: IsTTY [PATCH]

Daniel Jacobowitz
2005-09-18T03:44:42Z

On Sun, Sep 18, 2005 at 06:32:25AM +0300, Eli Zaretskii wrote:
> > Date: Sat, 17 Sep 2005 18:37:28 -0400
> > From: Daniel Jacobowitz <drow@false.org>
> > Cc: Richard Earnshaw <rearnsha@gcc.gnu.org>, gdb-patches@sources.redhat.com
> >
> > Usage Note: Don't use FILENAME_MAX as the size of an array in which
> > to store a file name! You can't possibly make an array that big! Use
> > dynamic allocation (see section 3.2 Allocating Storage For Program
> > Data) instead.
>
> That's a very strange advice, especially since there's gobs of code
> out there that define arrays like that to store file names. What's
> the value of FILENAME_MAX on those systems where a file name can have
> unlimited length? Is it really larger than a typical stack
> limitation?

It's looks like it has since been toned down as a matter of
practicality, but yes: I believe that at one point it was INT_MAX.
I.E. Much Too Big.

Ah, yes, Hurd throttles it to 1K in response to a limitation in their
RPC mechanism. But the developers were making noise about unthrottling
it again someday.

--
Daniel Jacobowitz
CodeSourcery, LLC