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Linker region-related symbols

Herve PIPON

Hi,

I saw many post on the forum, but did not find my needs :

What is the linker region-related symbol for LR_IROM1 COMPRESSED SIZE ?

Or in case it does not exist :

How can I inject a constant value into my object file after compilation ? (As I could read my former symbol in the MAP file ...)

Thanks for help.

Regards
Hervé.

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  • 0

    As this variable is not available in the linker symbols, I wonder if it is possible to get it during runtime.

    After performing variable decompression, the register R0 hold the end of the initialisation table.
    Up to the __scatterload_zeroinit the register R0 is not used

    SO I put that code into the Lpc23xx_keil.s

    The problem is that I can't go back to the original initialisation function :

    How can I call the original scatterload_zeroinit entry point after storing my data ?

                                    EXPORT  __scatterload_zeroinit
                                IMPORT  CodeZoneEnd
__scatterload_zeroinit
                LDR     R1, =  CodeZoneEnd   ; give access to the backup function
                STR     R0, [R1]
                BX      LR

Reply
  • 0

    As this variable is not available in the linker symbols, I wonder if it is possible to get it during runtime.

    After performing variable decompression, the register R0 hold the end of the initialisation table.
    Up to the __scatterload_zeroinit the register R0 is not used

    SO I put that code into the Lpc23xx_keil.s

    The problem is that I can't go back to the original initialisation function :

    How can I call the original scatterload_zeroinit entry point after storing my data ?

                                    EXPORT  __scatterload_zeroinit
                                IMPORT  CodeZoneEnd
__scatterload_zeroinit
                LDR     R1, =  CodeZoneEnd   ; give access to the backup function
                STR     R0, [R1]
                BX      LR

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