Kinetis MicrocontrollersのトピックRe: size of *.elf file

size of *.elf file

roymessinger — Mon, 09 Jan 2017 14:02:46 GMT

How do I know if the size of my code to flash will be sufficient for my SRAM size of the controller?

Where can I look for the my code flash size?

Re: size of *.elf file

BlackNight — Mon, 09 Jan 2017 14:30:36 GMT

Hi Roy,

that depends on the toolchain used. I assume you are using gcc and Kinetis Design Studio, then you can turn on the size informatio:

See Code Size Information with gcc for ARM/Kinetis | MCU on Eclipse for details about this.

This will report you the size in the console view after linking. This is usin the 'size' utility (see that post) which gives you all kind of information.

text, data and bss: Code and Data Size Explained | MCU on Eclipse explains the meaning of the information printed.

Another way would be to look at the linker .map file.

I hope this helps,

Erich

Re: size of *.elf file

roymessinger — Mon, 09 Jan 2017 15:06:14 GMT

Ok, thank you.

Where do I look at the .map file?

I've tried looking there but it's a very large file...

Roy

Re: size of *.elf file

BlackNight — Mon, 09 Jan 2017 15:11:22 GMT

Hi Roy,

yes, that's correct, there is no single place in the GNU Linker map file to look at. You get all the details, but no summary. You need to use the size tool as outlined by these articles if you want a summary.

Erich