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Is the disassembly code for am335x right?

Robert W
Mastermind 7100 points

Hi,

I want to enable Cortex A8 performance counter. After I enable it in Linux kernel, the register reading in user mode does not change with reading is always '1'. In disassembly window, I check the user mode register read process. It has this content:

 78           asm volatile ("MRC p15, 0, %0, c9, c14, 0\t\n": "=r"(value));

0x00008c28:   mrc\t15, 0, r3, cr9, cr14, {0}

This GDB debugger tool is from TI CCS v5.5.0, Ubuntu 12.04, 32 bit OS. I know that it has extra '\t' in disassembly code, but I am not sure other changes in the disassembly line, such as 'cr9', 'p15' to '15' etc. Do you have such experience?

Thanks,