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ARM .asm file not getting linked to project .out file?

MikeH
Guru 15580 points

I am using portions of the rCSL code for my ARM project. Specifically:

ARM9_handler.asm

ARM9_initstack.asm

ARM9_intvecs.asm

I have assigned .intvecs to ARM IRAM 

.intvecs > arm_iram /* Interrupt Vectors */

..which appears to properly place the interrupt vectors at 0xffff0000. But I am not seeing the ARM9_handler.asm getting linked into the .out file. Shouldn't it automagically get linked by being include in the project directory? Or do I need to provide a specific link to it somewhere?

Thx,

MikeH

 

 

 

  • 0
    Guru 15580 points

    Well, from the looks of the console output of the linking process, it appears that the handler.asm file *is* getting linked. However, I do not see any of the symbols in the handler.asm file in the project.map file. 

    Also, as I step through the code I can see that _call_swi does in fact jump to 0xffff0008, which is where my intvecs.asm put it. But after executing this:

    0xFFFF0008:   E59FF014 LDR           PC, 0xFFFF0024

    ...the program jumps to a location in shared memory (0x80004B64:   00000000 ANDEQ         R0, R0, R0).

    Here is the code that resides at the location pointed to by the interrupt vector.

    0xFFFF0024:   80004B64 ANDHI         R4, R0, R4, ROR #22

    It looks like the handler code is not getting loaded properly.

    What am I doing wrong here?

    Thx,

    MikeH

     

  • 0 in reply to MikeH
    Guru 15580 points

    Hellllp!!!!

    All of the examples in the rCSL Quickstart run properly. However, when I include the 3 .asm files above in my program, the linker does not create symbols for the ARM9_handler.asm file. Or at least I do not see the symbols in the .map file. After calling the swi (_call_swi) the program jumps to the proper interrupt vector location, but the proper code does not appear to be loaded at that location.

    Can anyone provide help with this?

    thx

    MikeH

     

  • 0 in reply to MikeH
    Guru 15580 points

    OK. Here's the answer:

    --retain=INT_VECS

    Thanks for all of the help.

    MikeH