adjusting stack size of executable compiled by gcc

adjusting stack size of executable compiled by gcc

[tony vong]

Hi,

I am writing a simulator using c++. I am suspecting my
program is hitting some kind of stack limit because:
1. it crashes at some point that does not make sense
2. when I add some 'unused' variable to some class,
the 
crash point change. Since those newly added variables
are NEVER used, the crash point should be the same.

Therefore, I suspect my program is hitting some sort
of stack limit. I am using gcc 3.4.1 on redhat 9. 

I WOULD LIKE TO KNOW:

1. how to find out the stack size of my executable
2. how do I increase the stack size when I compiled it
with gcc ???

thank you.


		
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Re: adjusting stack size of executable compiled by gcc

[tm_gccmail]

On Mon, 27 Sep 2004, tony vong wrote:

> Hi,
> 
> I am writing a simulator using c++. I am suspecting my
> program is hitting some kind of stack limit because:
> 1. it crashes at some point that does not make sense
> 2. when I add some 'unused' variable to some class,
> the 
> crash point change. Since those newly added variables
> are NEVER used, the crash point should be the same.
> 
> Therefore, I suspect my program is hitting some sort
> of stack limit. I am using gcc 3.4.1 on redhat 9. 
> 
> I WOULD LIKE TO KNOW:
> 
> 1. how to find out the stack size of my executable
> 2. how do I increase the stack size when I compiled it
> with gcc ???
> 
> thank you.
> 
> 
> 		
> _______________________________
> Do you Yahoo!?
> Declare Yourself - Register online to vote today!
> http://vote.yahoo.com

This is the wrong list for asking such questions.

This list is for the discussion of gcc internals.

You are asking a question about the stack size for an operating system,
which needs to be asked on an OPERATING SYSTEM mailing list.

Toshi

Re: adjusting stack size of executable compiled by gcc

[Mike Stump]

On Monday, September 27, 2004, at 06:12  AM, tony vong wrote:
> I am writing a simulator using c++. I am suspecting my
> program is hitting some kind of stack limit because:

> 2. how do I increase the stack size when I compiled it
> with gcc ???

Please don't use the gcc list, it isn't for what you think it is for.

See ulimit -a (ulimit -s) from bash, if you must

In portable code, pretend the stack is 1MB large and each frame takes 
128 bytes + whatever variables you need, you won't go wrong.  For 
things larger, use malloc/new.