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    • Conditional Linker script

    Posted by dtrofymenko on 2016-08-29 15:40

    Hi, i need to make some conditional assignments in the linker script, example: #ifdef DEBUG -> assign more memory for stack, #elif -> assign less memory for stack

    something similar to pre-processor statements in c.

    is there a way to do so in the linker of the openstm32?
    if yes, is it possible to read defines made in a header file? or should i made a separate defines inside the linker itself?

    thank you

    Reads: 13597
    Posted by tarek bouchkati on 2016-08-30 12:30 Tunisia

    as far as I know gcc linker cannot read defines made in header, but you can add symbol definition to you linker using defsym

    example :

    in you project properties > C/C++ Build > Settings > Tools Sttings (tab) > MCU GCC Linker > Miscellaneous > Linker flags add

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    -Wl,--defsym,stack_size=0x2000


    and in my linker I add this

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    stack_size = DEFINED(stack_size) ? stack_size : 0x400 ;