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Stack Watermarking AN316 Assembly Trouble

ESL

I'm trying to run the Main Stack Watermarking procedure as described in Application Note 316, page 7. (https://www.keil.com/appnotes/files/apnt_316.pdf)

However, when I try to build the assembler file "FillSystemStacks.s" in with the project I get two errors.
Error 1: (on both MOV R2 and MOV R3)
  • FillSystemStack.s(12): error: A1492E: Immediate 0xCBCBCBCB out of range for this operation.  Permitted values are 0x00000000 to 0x000000FF
  • FillSystemStack.s(13): error: A1492E: Immediate 0xABABABAB out of range for this operation.  Permitted values are 0x00000000 to 0x000000FF
When I try to fix this by changing the constants to 0xCB and 0xAB I get a new error.
Error 2:  (on both MOV R2 and MOV R3)
  • FillSystemStack.s(12): error: A1859E: Flag preserving form of this instruction not available
  • FillSystemStack.s(13): error: A1859E: Flag preserving form of this instruction not available

 

Pre-compile there's a message "*** Using Compiler 'V5.06 update 1 (build 61)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'", which is probably important to know. I am a newbie at this so please let me know if there's any other information you'd need.

Thanks,

Ethan

Parents
  • 0 Arm Employee Badge in reply to ESL

    You have selected the armasm assembler with ARM syntax, which is wrong in this case. The assembly source file FillSystemStacks.s is written in GNU syntax and requires the armclang assembler. Please select either 'armclang (GNU Syntax) or - what I recomment - 'armclang (Auto Select)'.

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  • 0 Arm Employee Badge in reply to ESL

    You have selected the armasm assembler with ARM syntax, which is wrong in this case. The assembly source file FillSystemStacks.s is written in GNU syntax and requires the armclang assembler. Please select either 'armclang (GNU Syntax) or - what I recomment - 'armclang (Auto Select)'.

Children
  • 0 in reply to Hans Schneebauer

    This seems like it might be it!

    Unfortunately the "Assembler Option" isn't visible on my system, but after some searching around I found I need to have the Arm Compiler Version 6, which requires a Keil update for me. I'm doing that now and if everything works out I'll accept your answer.

    Thanks!

    Ethan