[ECOS] Size of downloaded files?

[ECOS] Size of downloaded files?

[Andreas.Karlsson]

Hi,

Is there any way I can see how much each .c file contributes to the size
that will be downloaded to the target?

/Andreas

RE: [ECOS] Size of downloaded files?

[Gary Thomas]

On 18-Sep-2000 Andreas.Karlsson@combitechsystems.com wrote:
> Hi,
> 
> Is there any way I can see how much each .c file contributes to the size
> that will be downloaded to the target?

Yes and no.  Something simple like:
  find . -name "*.o" -exec arm-elf-size \{} \;
will show you the rough sizes of the object files.

However, due to selective linking this will be misleading since much
of what you might see can be left out if you're not actually using it.

You can also generate a linker map to see what sections and their sizes
are part of the final image.

RE: [ECOS] Size of downloaded files?

[Gary Thomas]

On 18-Sep-2000 Andreas.Karlsson@combitechsystems.com wrote:
> How do I generate a linker map?
> 
> I tried with this and with Map at several other places.
> 
> /Andreas
> 
> arm-elf-gcc -mcpu=arm7di                         -nostartfiles
> -L//d/ecos-work/aeb/config2_install/lib -Map my_mapfile, -Wl,--gc-sections
> -o testprog testprog.o receiver.o  -Ttarget.ld -nostdlib
> 
> arm-elf-gcc: my_mapfile,: No such file or directory
> 
> arm-elf-gcc: unrecognized option `-Map'
> 
> make: *** [testprog] Error 1
> 
> bash-2.04$
> 

You need to pass the options as -Wl,xxx  Thus,
  -Wl,-Map -Wl,my_mapfile

RE: [ECOS] Size of downloaded files?

[Andreas.Karlsson]

How do I generate a linker map?

I tried with this and with Map at several other places.

/Andreas

arm-elf-gcc -mcpu=arm7di                         -nostartfiles
-L//d/ecos-work/aeb/config2_install/lib -Map my_mapfile, -Wl,--gc-sections
-o testprog testprog.o receiver.o  -Ttarget.ld -nostdlib

arm-elf-gcc: my_mapfile,: No such file or directory

arm-elf-gcc: unrecognized option `-Map'

make: *** [testprog] Error 1

bash-2.04$



> On 18-Sep-2000 Andreas.Karlsson@combitechsystems.com wrote:

> > Hi,

> > 

> > Is there any way I can see how much each .c file 

> contributes to the size

> > that will be downloaded to the target?

> 

> Yes and no.  Something simple like:

>   find . -name "*.o" -exec arm-elf-size \{} \;

> will show you the rough sizes of the object files.

> 

> However, due to selective linking this will be misleading since much

> of what you might see can be left out if you're not actually using it.

> 

> You can also generate a linker map to see what sections and 

> their sizes

> are part of the final image.

>