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Groups > comp.os.msdos.programmer > #1433

Re: Stack overflow: how to monitor stack usage?

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On Thu, 24 Jul 2014 15:20:13 -0400, Mateusz Viste  
<mateusz.viste@localhost> wrote:

> Hello,
>
> Just wondering - is there any mechanism that allows to monitor the  
> current usage of the stack?

There is no official way to do this since C officially does not
require a stack.

On a POSIX system, you should be able to use alloca() to monitor
changes to stack allocation.  I doubt that Turbo C has it since
it's for DOS, but it might.  So, you should check.

You could have a function that declares an a procedure local
variable (auto) and returns or displays it's address.  This
acts like the address that would be returned by alloca() with
a small value, like 2 or 4.  So, your variable will be allocated
at the top of the stack space.  So, the variable's address
represents an address that's a bit larger than what is currently
in use for the stack.  You'd call the function each time you want
an update.  The problem is this only gives an address near the
top of the current stack.  To determine the amount of stack in
use, you need to subtract an initial address from the current
address.  You'll need to call your function just after entering
main() and save an early value for the low value to subtract.


Rod Pemberton

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Thread

Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-24 21:20 +0200
  Re: Stack overflow: how to monitor stack usage? Johann Klammer <klammerj@NOSPAM.a1.net> - 2014-07-24 22:08 +0200
    Re: Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-25 08:20 +0200
      Re: Stack overflow: how to monitor stack usage? "Rod Pemberton" <dont_use_email@xnothavet.cqm> - 2014-07-25 04:34 -0400
        Re: Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-25 12:53 +0200
      Re: Stack overflow: how to monitor stack usage? Johann Klammer <klammerj@NOSPAM.a1.net> - 2014-07-25 12:07 +0200
        Re: Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-25 12:48 +0200
          Re: Stack overflow: how to monitor stack usage? Johann Klammer <klammerj@NOSPAM.a1.net> - 2014-07-25 13:18 +0200
            Re: Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-25 14:06 +0200
              Re: Stack overflow: how to monitor stack usage? Johann Klammer <klammerj@NOSPAM.a1.net> - 2014-07-25 14:48 +0200
                Re: Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-25 15:03 +0200
              Re: Stack overflow: how to monitor stack usage? Johann Klammer <klammerj@NOSPAM.a1.net> - 2014-07-25 14:59 +0200
                Re: Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-25 15:08 +0200
  Re: Stack overflow: how to monitor stack usage? Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2014-07-25 00:24 +0200
    Re: Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-25 08:32 +0200
  Re: Stack overflow: how to monitor stack usage? "Rod Pemberton" <dont_use_email@xnothavet.cqm> - 2014-07-25 01:42 -0400
    Re: Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-25 08:45 +0200
  Re: Stack overflow: how to monitor stack usage? Mateusz Viste <mateusz.viste@localhost> - 2014-07-25 21:26 +0200
    Re: Stack overflow: how to monitor stack usage? "Rod Pemberton" <dont_use_email@xnothavet.cqm> - 2014-07-25 16:28 -0400

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