objcopy with automatic adjusting sections feature

[Piotr Piwko]

Hello,

I have a question related objcopy tool. I have the ELF object file
'object', and I want to update the data of one section (assume
'.mysec'). Is there any possibility to re-compute start, VMA and LMA
addresses of all sections which are placed below '.mysec'? Now, I do
it manually in this way:

Assume that I have this kind of memory map:

 25 .mysec   001eef40  80b9b000  80b9b000  003ab000  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 26 .machvec.init 00000088  80d89f40  80d89f40  00599f40  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 27 .bss          000240dc  80d8a000  80d8a000  00599fc8  2**5
                  ALLOC

Remove the current section:
objcopy object -R .mysec

Add new section and fill it with data of mysec_data file
objcopy object --add-section .mysec=mysec_data

Change the section flags
objcopy object --set-section flags .mysec=contents,alloc,load,readonly,data

Set a new VMA and LMA values
objcopy vmlinux --change-section-vma .mysec=0x80b9b000

And then I change the addresses of .machvec.init and .bss sections to
fit the new memory arrangement.

Do you know any tips of hints to do it automatically instead of
annoying computing and changing it step by step?

Thank you in advance for you engagement in this issue.

-- 
Piotr Piwko
http://www.embedded-engineering.pl/