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Using linker to place .text section for a specific file.

CT45036
Intellectual 540 points

What is the best way to instruct the linker to place a section of specific file in a memory.  For example I would like to place the .text section of all compiled code in SDRAM, except for a single file where I would like the .text section for that file to reside in IRAM.  Is there a label which can be used to represent the .text section of a particular file?

Thanks!

  • 0
    Intellectual 540 points

    I found some information on how to do this and the following solution seems to work:

    SECTIONS
    {  
        /* C standard sections */
        .boot_load  >       IRAM_BOOT
        .cinit      >       SDRAM
        .text       >       SDRAM
        .fasttext : {
            optDspRtns.obj(.text)
            }        >         IRAM_REST
        .stack      >       IRAM_REST
        .bss        >       IRAM_REST
        .const      >       IRAM_REST
        .data       >       SDRAM
        .far        >       IRAM_REST
        .switch     >       IRAM_REST
        .sysmem     >       IRAM_REST
        .tables     >       SDRAM
        .cio        >       SDRAM
        .pinit       >        IRAM_REST
    }

    where optDspRtns is the code to be run from internal RAM.