Compiler: Linker REGION_ALIAS command

Guy Mardiks

Tool/software: TI C/C++ Compiler

Hi,

In some linkers there is the command: REGION_ALIAS and with it i can give the SAME memory region several names (the name defined under the memory region and i can than add alias names to it).

Is there something similar for TI linkers (TDA3XX Cortex M4 arm and DSPs)?

I have seen there is the ALIAS keyword but from what i understand it is used to make the linker know that DIFFERENT memory regions physically point to the same place.

I tried using this ALIAS command and used the same memory region to both names under the alias. it seemed to be working but i wanted to ask if i am not doing something that should not actually be done and may cause problem which i have not yet encountered?

Thanks

over 8 years ago

0 George Mock over 8 years ago

TI__Guru**** 251100 points

The ALIAS feature of the TI linker does not work the way you describe this REGION_ALIAS feature.

The TI linker does support C preprocessing, including #define. So you could do something like this ...

MEMORY
{
    FLASH : /* origin and length here */
    ...
}

#define NEW_NAME FLASH   /* Similar to REGION_ALIAS */

SECTIONS
{
    output_section_name > NEW_NAME /* Actually allocates to FLASH */
    ...
}

Because of that #define, every instance of NEW_NAME is replaced with FLASH.

Thanks and regards,

-George

0 Guy Mardiks over 8 years ago in reply to George Mock

Genius 4135 points

Thank you for the reply. I will take you advice using #define (even though the TI ALIAS did seem to work also for aliasing the name it probably would not be good practice using it that way).

Thanks

Guy

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Compiler: Linker REGION_ALIAS command