how to reduce executable compiled file

[Luca Cinquepalmi]

Hi all,
I'm new of the list and I have a simple question. I compiled a simple
"Hello World" c code
with sparc-rtems-gcc, but the generated executable is about 3MB, so much
for my use...
I don't know why the executable file is so large... How can I reduce its
size?
Thank you

Luca
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[Rhenzo Losso]

Greetings,

Maybe you can use the sparc-rtems-objdump or sparc-rtems-strip. I'm using RTEMS on arm processor (CSN637 port) and I use arm-rtems-objcopy to transform the arm.exe into arm.bin. It reduce from 2MB to near 147kB.

2012/4/3 Luca Cinquepalmi <cinqu...@planetek.it>

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Rhenzo Losso
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[Luca Cinquepalmi]

In  my Makefile I also use these commands:

sparc-rtems-strip $@.exe
sparc-rtems-objcopy --remove-section=.comment $@.exe

but the final .exe file is always large, about 300KB from the original 3MB.
Should I use other commands? Thanks

[Luca Cinquepalmi]

Mi viene ridotto solo di qualke byte...:-(

Il 03/04/2012 18.15, Rhenzo Losso ha scritto:

Try to change some argument o sparc-rtems-objcopy such this line below:

"sparc-rtems-objcopy -O binary name_of_source_ exe name_of_binary.bin"

that  is the "same" line I use on my ARM, excpet it arm-rtems-objcopy not sparc-rtems-objcopy.

2012/4/3 Luca Cinquepalmi <cinqu...@planetek.it>

[Luca Cinquepalmi]

Sorry! I answered in Italian:-)
It only reduce my exe file of some hundreds of bytes:-(

Il 03/04/2012 18.15, Rhenzo Losso ha scritto:

Try to change some argument o sparc-rtems-objcopy such this line below:

"sparc-rtems-objcopy -O binary name_of_source_ exe name_of_binary.bin"

that  is the "same" line I use on my ARM, excpet it arm-rtems-objcopy not sparc-rtems-objcopy.

2012/4/3 Luca Cinquepalmi <cinqu...@planetek.it>

In  my Makefile I also use these commands:

[Joel Sherrill]

Try sparc-rtems4.xx-size *.exe

The size can vary enormously based upon what you
are doing in application space.

--joel

On 04/03/2012 11:33 AM, Rhenzo Losso wrote:

I just made this test some right now on BSP SIS.

sparc-rtems-strip -s executable_name.exe -o strip-executable_name.exe

It was reduced a lot. from #MB to 140kB. After this I turn into binary.

sparc-rtems-objcopy -O binary strip-executable_name.exe final-binary-name.bin

2012/4/3 Luca Cinquepalmi <cinqu...@planetek.it>

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