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Product:
Code Generation Tools
Internal ID:
CODEGEN-11433
Forum URL:

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https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/Arm-based-microcontrollers---internal/f/1042/t/1263171

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https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/Arm-based-microcontrollers---internal/f/1042/t/1263171
Found In Release:
ARMCLANG_2.1.3.LTS
Affected Platform/Device:
default
Decline Reason:

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_get_CPSR exists in ti_compatibility.h, but ti_compatibility.h was meant to ensure backward compatibility source code ported to tiarmclang with targets supported by the TI Arm proprietary compiler (armcl), which doesn't include Cortex-M33.

Separate issue filed to address lack of documentation on enabling/disabling interrupts on Arm targets.

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_get_CPSR exists in ti_compatibility.h, but ti_compatibility.h was meant to ensure backward compatibility source code ported to tiarmclang with targets supported by the TI Arm proprietary compiler (armcl), which doesn't include Cortex-M33. Separate issue filed to address lack of documentation on enabling/disabling interrupts on Arm targets.

The attached file.c has these line ...

#include <ti_compatibility.h>

void fxn()
{
    _disable_interrupts();
}

Build it ...

$ tiarmclang @options.txt -S file.c

Inspect the resulting assembly file ...

$ findstr _get_CPSR file.S
        bl      _get_CPSR
        .asciz  "_get_CPSR"                     @ string offset=203

The function _get_CPSR is not defined in the compiler RTS library, or anywhere else. This results in an error when linking.