Getting Program Counter value on ARM Cortex M series using C

Question

Is there any trick to write a function for ARM Cortex M series ICs that returns the PC value before function calling. Without using assembly language.

Answer 1

You can use the __current_pc intrinsic, e.g.

int main()
{
    printf("Current PC = %u\n", __current_pc());
    return 0;
}