How to make gcc linker output section size at command line?

Question

I program for MCUs. The size of code and data is important and I need to know the size of these section after compiling. I've known how to get these imformation. Just define

__text_size = SIZEOF(.text);

in the linker script file, and than I can get the value of it in the map file output by the linker. (the ".text" is a section defined in my linker script file). However, I hate to open the map file and search for the __text_size every time after compiling and linking. Is there any way to tell the linker to output the size of a section at command line? The Keil, for example, always output the code, rodata, data and zi-data size after compiling.

iabdalkader · Accepted Answer · 2012-12-22 17:52:02Z

3

you can use the size utility:

$size test
text data bss dec hex filename
1153 504 24 1681 691 test

answered Dec 22, 2012 at 17:52

iabdalkader

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1 Comment

Pony279 Over a year ago

sorry, I'm not quite familiar with gcc. Could you explain it with more details ? Where should I put the size command?

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