where is gone -fstack-usage?

where is gone -fstack-usage?

[Massimiliano Cialdi]

surfing the web, searching some tool for statically analize the stack
usage I found a pdf from 5 years ago, from the 2005 GCC Developers’
Summit:
http://www.gccsummit.org/2005/2005-GCC-Summit-Proceedings.pdf

In that document is described a GCC command line options: -fstack-usage
(par 2.2.1, pag 96).
There is also an example with a slice of C code and the .su output

so wonderful, so usefull...

I use avr-gcc and arm-elf-gcc, both version 4.4.3.
I tryed to invoke gcc with -fstack-usage:

cc1: error: unrecognized command line option "-fstack-usage"

why?
where is that option?

bye

Re: where is gone -fstack-usage?

[Eric Botcazou]

> I use avr-gcc and arm-elf-gcc, both version 4.4.3.
> I tryed to invoke gcc with -fstack-usage:
>
> cc1: error: unrecognized command line option "-fstack-usage"
>
> why?

Presumably because the option isn't implemented in this compiler.

> where is that option?

An old version is at http://gcc.gnu.org/ml/gcc-patches/2006-06/msg01008.html

-- 
Eric Botcazou

Re: where is gone -fstack-usage?

[Massimiliano Cialdi]

Il giorno ven, 19/03/2010 alle 13.20 +0100, Eric Botcazou ha scritto:
> > I use avr-gcc and arm-elf-gcc, both version 4.4.3.
> > I tryed to invoke gcc with -fstack-usage:
> >
> > cc1: error: unrecognized command line option "-fstack-usage"
> >
> > why?
> 
> Presumably because the option isn't implemented in this compiler.
And why this option has been removed?
In some cases it is dramatically usefull...

> > where is that option?
> 
> An old version is at http://gcc.gnu.org/ml/gcc-patches/2006-06/msg01008.html
no hope to have that option again in upcoming versions of gcc?

thanks

Re: where is gone -fstack-usage?

[Eric Botcazou]

> And why this option has been removed?

It hasn't, it never got merged in the FSF tree.

> no hope to have that option again in upcoming versions of gcc?

Some hope to have it merged at some point, but no promises as usual.

-- 
Eric Botcazou