Karthik,

> I have pretty big makefile for a embedded project with large number of
> big modules . I find that it is taking hours to get compiled in linux
> environment. How to get this done in few minutes as it is difficult
> while debugging ?

How big are we talking here? I consider the linux kernel Makefile
pretty big at 50k.


> I find that the Codewarrior Compiler compiles the same embedded
> application in less than a minute.
>
> Apart from changes in compiler dependent stuffs (assembly and other
> conventions) in Codewarrior, the same code is used in linux
> environment also.

Have you tried compiling a single file manually, to see if it's
the compiler or your makefile taking longer time?


regards,


--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~
| Damion de Soto --------------------------------------------------
| Software Engineer email: Damion_deSoto@au.securecomputing.com
| Secure Computing Corporation web: http://www.securecomputing.com
| fax: +61 7 3891 3630 ph: +61 7 3435 2809
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~
---- Free Embedded Linux Distro at http://www.snapgear.org ----

Damion de Soto wrote:
> Karthik,
>
> > I have pretty big makefile for a embedded project with large number of
> > big modules . I find that it is taking hours to get compiled in linux
> > environment. How to get this done in few minutes as it is difficult
> > while debugging ?
>
> How big are we talking here? I consider the linux kernel Makefile
> pretty big at 50k.
>
>
> > I find that the Codewarrior Compiler compiles the same embedded
> > application in less than a minute.
> >
> > Apart from changes in compiler dependent stuffs (assembly and other
> > conventions) in Codewarrior, the same code is used in linux
> > environment also.
>
> Have you tried compiling a single file manually, to see if it's
> the compiler or your makefile taking longer time?
>
>
> regards,
>
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~
> | Damion de Soto --------------------------------------------------
> | Software Engineer email: Damion_deSoto@au.securecomputing.com
> | Secure Computing Corporation web: http://www.securecomputing.com
> | fax: +61 7 3891 3630 ph: +61 7 3435 2809
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~
> ---- Free Embedded Linux Distro at http://www.snapgear.org ----


hmmm, Obviously, the makefile is the culprit . Gcc is perfectly fast.
(No issues w.r.t it)
I am also aware of it.

Based on your feedback, I think the question should be reframed .
So, i should have askd the question like this - "Why linux environment
compilation & linking
takes long duration ? "

(Regarding Size - It is smaller than linux )

The project is having large number of directories & subdirectories.
Earlier i faced system resources problem . So, the sources (C and C++
are put separately)
are put in respective directories, headers in another directory with
libraries in other respective
separate dirctories etc.

But, since it has to refer lot of libraries /headers. i think, it is
taking time.
But, how is it possible that the Codewarrior compiler compiles in few
minutes for the
same set of source-code. It also internally uses makefile concepts
only.

And why mine is consuming such a long time ??
Where could be the problem ???

Thx in advans,
Karthik Balaguru

karthikbg wrote:

> And why mine is consuming such a long time ??
> Where could be the problem ???

No offence, but it's a pretty silly question. Tell us how long it is
taking to compile, and what kind of machine you are running with (CPU,
memory etc).

On my two-way SMP machine the Linux 2.4.20 kernel compiles in about a
minute using a parallel compile.

Geronimo W. Christ Esq wrote:
> karthikbg wrote:
>
> > And why mine is consuming such a long time ??
> > Where could be the problem ???
>
> No offence, but it's a pretty silly question. Tell us how long it is
> taking to compile, and what kind of machine you are running with (CPU,
> memory etc).
>
> On my two-way SMP machine the Linux 2.4.20 kernel compiles in about a
> minute using a parallel compile.

Pentium 4, RAM - 1 GB.

karthikbg wrote:
> Geronimo W. Christ Esq wrote:
>> karthikbg wrote:
>>
>>> And why mine is consuming such a long time ??
>>> Where could be the problem ???
>> No offence, but it's a pretty silly question. Tell us how long it is
>> taking to compile, and what kind of machine you are running with (CPU,
>> memory etc).
>>
>> On my two-way SMP machine the Linux 2.4.20 kernel compiles in about a
>> minute using a parallel compile.
>
> Pentium 4, RAM - 1 GB.
>

Time your compile, then time "make -j 7; make" and let us know the results.


Dave