Linker script

["Daniel Lidsten" <Daniel dot Lidsten at combitechsystems dot com>]

Hi,

I have a special problem that has to do with the linker script. In my
application i want to add a CRC value to the binary image so that i can
check the code segment for errors during runtime. I cannot put the CRC
over the entire image since some segment are changing during execution
so instead i want to calculate it based on the text segment only.
However, the segment is of different size each time i link which means
that i have to communicate the size to the CRC calcualtion routine. I
think that it should be done in the linker script by something like
this:

    .text   0x5000  :      { _stext = .; *(.text*) *(.gnu.warning)
*(.gnu.linkonce*) *(.init) } >  ram  _etext = .;  PROVIDE 

The text segment specifies where the end is in the variable _etext.

I need the above value to be place on a fixed location by something like
this:

.TextEnd   0x004DFFFC :      { etext }

The above dones work but can any see a way for this to work?

Regards, Daniel Lidsten

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