CodeWarrior Development ToolsのトピックRe: wath's mean in CW5.1 in .map file

wath's mean in CW5.1 in .map file

Fan_xy — Mon, 09 Feb 2015 10:27:12 GMT

Hello

when enable the stack consumption , what is meaning in the CW5.1, Init(3)(2) the second " (2) " meaning ?

Thanks !

Re: wath's mean in CW5.1 in .map file

TICS_Fiona — Tue, 10 Feb 2015 06:11:57 GMT

Sorry that I cannot address any document to describe the details for Dependency Tree. From your screenshot, it seems that the function Init() calls two subroutines, and these subroutines may be in assembly code or in libraries.

Re: wath's mean in CW5.1 in .map file

trytohelp — Mon, 16 Feb 2015 16:56:08 GMT

Hi,

The information is not provided in the current documentation.

See below info about these details:

We checked the linker for the information you asked and it goes like this:

the first value after the function name represents the stack size required for calling that particular function from its caller (so basically the stack consumption of the ‘call’ itself)
the second value after the function name appears only for the leaf functions (functions that don’t call other functions) and represents the stack size consumed by that function

Have a great day,
Pascal
Freescale Technical Support
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Re: wath's mean in CW5.1 in .map file

Fan_xy — Wed, 04 Mar 2015 04:07:08 GMT

Thank Pascal.

While i still not clearly.

I know that , for example fun(3)(0) , it is meaning the leaf function , that is the last function of one branch.

While fun(3)(2) , the 2 meaning what ? (in my project , it is Init(3)(2)) .

Thank !

Re: wath's mean in CW5.1 in .map file

trytohelp — Wed, 04 Mar 2015 09:34:51 GMT

Hi,

Better is to use an example.

In this case I've create a project with the wizard.

After to have enabled the "-M -StackConsumption" options the map file is generated.

Test_1: without local variable

main.c file:

+++++++++++++++

void main(void) {

/* put your own code here */

// int val_1=0;

// char val_2=0;

EnableInterrupts;

for(;;) {

_FEED_COP(); /* feeds the dog */

} /* loop forever */

/* please make sure that you never leave main */

}

+++++++++++++++

Map file

main and _Startup Group

+- main

+- _Startup

+- Init(3)(3)

+- main(3)(0) (see above)

Test_2: with val_1 local variable

main.c file:

+++++++++++++++

void main(void) {

/* put your own code here */

int val_1=0;

// char val_2=0;

...

+++++++++++++++

Map file

main and _Startup Group

+- main

+- _Startup

+- Init(3)(3)

+- main(3)(2) (see above)

Test_3: with val_1 & val_2 local variables

main.c file:

+++++++++++++++

void main(void) {

/* put your own code here */

int val_1=0;

char val_2=0;

...

+++++++++++++++

Map file

main and _Startup Group

+- main

+- _Startup

+- Init(3)(3)

+- main(3)(3)

The second information gives the Stack Consumption which are local variables and other local definition using stack for the function.