C Function Call tree Display

[tom12sg]

call tree windows

Hi,

Is there any good program that shows a call tree display of the depth of C function call in any routine. Just wish to keep track and be aware of stack usage.
Thanks.

 

[C-Man]

calltree c

I have not seen a program that can do this but some compilers are able to do this.

For example the Hi-Tech compilers for PIC and PIC18 you have to enable "generate map file" to get the so called call graph.

Looks like this:

Call graph:

*_main size 0,2 offset 0
     _i2c_wait size 0,1 offset 2
         _i2c_read size 0,3 offset 5
             _i2c_sendack
         _i2c_sendack
     _zufall_16 size 0,2 offset 4
     _EEPROM_lesen size 0,1 offset 2
     _sende_mist size 0,2 offset 2
         _zufall_16 size 0,2 offset 4
         _verschluesseln
         _i2c_write size 0,2 offset 4
     _verschluesseln
     _i2c_write size 0,2 offset 4
*    _ueberlese_mist size 0,3 offset 2
*        _i2c_read size 0,3 offset 5
*            _i2c_sendack
         _verschluesseln
*    _i2c_read size 0,3 offset 5
*        _i2c_sendack

Another approach is to fill the stack (this is not possible with PIC 12, 14 and 16 architecture) with a known pattern, for example 0xAA at power on and let the device work for lets say one hour.

Afterwards dump the stack for example via a serial connection to a PC and you will see how far your stack has been used

best regards

 

[manitooo]

tree display in c

if you use the editor named "source insight", you can get all the relations windows you want (call, references et so more...)..

 

[the_penetrator]

understand for c stack usage

gprof (in binutils distribution) can do that

 

[loucy]

c call tree

Understand For C (www.sti.com?) is quite good at it.