Re: Stack analysis tool that really work?

From	pozz <pozzugno@gmail.com>
Newsgroups	comp.arch.embedded
Subject	Re: Stack analysis tool that really work?
Date	2021-08-03 11:49 +0200
Organization	A noiseless patient Spider
Message-ID	<seb3fa$82q$1@dont-email.me> (permalink)
References	<sdukj9$8tu$1@dont-email.me> <sea47k$j3s$1@dont-email.me>

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Il 03/08/2021 02:56, Don Y ha scritto:
> On 7/29/2021 9:22 AM, pozz wrote:
>> arm gcc and Cortex-Mx MCUs embedded systems.
>>
>> Is there a compilation-time (static) tool for stack analysis that 
>> really works?
> 
> What do you mean by "really works"?  It's a (potentially) unbounded problem
> as the compiler can't know what the inputs will drive the code to do, in
> practice.

I mean a simple tool that can be instructed, even manually, to produce a 
good result.

-fstack-usage is not usable "by hands".

You need at least a call-graph (generated by a tool), fill each branch 
(function) with a stack usage (generated by the compiler), fill every 
branch that is not known at compilation time by the tools (call 
functions by pointers, recursive, and so on).

It's surprisingly to me there isn't a single non-expensive tool that 
helps in this, considering there are a multitude of good free tools for 
developers.

> Your best practical option is to tease a callgraph (tree) out and use your
> own knowledge of what the code WANTS to do to identify the worst-case
> stack penetration path.  This is also a great way to get a feel for if your
> code might benefit from a good refactoring!
> 
>> The best I could find is -fstack-usage and avstack.pl Perl script, but 
>> I guess there's another and better way.
> 
> There are general tools that you can probably instrument to coax a
> number out of the source (if you don't have access to the source, you're
> typically SoL) but they will be expensive in time or money.

Thread

Stack analysis tool that really work? pozz <pozzugno@gmail.com> - 2021-07-29 18:22 +0200
  Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-07-29 19:36 +0300
  Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-02 17:56 -0700
    Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-03 11:43 +0300
      Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-03 02:28 -0700
        Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-04 22:14 +0300
          Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-04 15:43 -0700
    Re: Stack analysis tool that really work? pozz <pozzugno@gmail.com> - 2021-08-03 11:49 +0200
      Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-03 20:17 -0700
        Re: Stack analysis tool that really work? pozz <pozzugno@gmail.com> - 2021-08-04 16:43 +0200
          Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-04 11:06 -0700
            Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-05 12:00 +0300
              Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-05 04:54 -0700
      Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-04 20:00 +0300
        Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-04 10:50 -0700
          Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-04 21:50 +0300
            Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-04 15:46 -0700
              Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-05 13:43 +0300
                Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-05 06:16 -0700
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-05 18:39 +0300
                Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-06 01:09 -0700
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-06 22:58 +0300
                Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-06 16:04 -0700
                Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-06 16:06 -0700
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-07 14:20 +0300
                Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-07 10:26 -0700
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-07 20:46 +0300
                Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-07 15:14 -0700
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-07 14:09 +0300
                Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-07 08:09 -0700
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-07 19:50 +0300
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-07 20:02 +0300
                Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-07 10:34 -0700
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-07 21:10 +0300
                Re: Stack analysis tool that really work? George Neuner <gneuner2@comcast.net> - 2021-08-06 22:55 -0400
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-07 13:40 +0300
                Re: Stack analysis tool that really work? George Neuner <gneuner2@comcast.net> - 2021-08-08 18:34 -0400
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-09 10:50 +0300
                Re: Stack analysis tool that really work? Paul Rubin <no.email@nospam.invalid> - 2021-08-09 11:26 -0700
                Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-09 22:59 +0300
                Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-09 12:04 -0700
          Re: Stack analysis tool that really work? Niklas Holsti <niklas.holsti@tidorum.invalid> - 2021-08-05 13:18 +0300
            Re: Stack analysis tool that really work? Don Y <blockedofcourse@foo.invalid> - 2021-08-05 04:59 -0700

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