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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?
The address of _etext should be a global symbol that you can access directly in your 'C' program. You need to add a definition like
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