cortex-m3无法调试。 原因-SIGINT

Question

I try to debug cortex-M3 microcontroller. There is SysTick interrupt enabled in firmware. So I can't debug program. There is what i get:

 C:\Users\al\Desktop\eclipse\arm-toolchain\bin>arm-none-eabi-gdb.exe ../../work_d
    ir/mdr1986be91_94_dev_board/Debug/mdr1986be91_94_dev_board.elf
    GNU gdb (Sourcery G++ Lite 2011.03-42) 7.2.50.20100908-cvs
    ...
    (gdb) target remote localhost:3333
    ...
    (gdb) c
    Continuing.

    Program received signal SIGINT, Interrupt.
    0x0000001c in ?? ()
        at ../Libraries/MDR32F9Qx_StdPeriph_Driver/src/MDR32F9Qx_rst_clk.c:1642
    1642        statusreg = MDR_BKP->REG_0F;
    (gdb)

Debugging is stopped when an interrupt occurs. How to fix that?

Answer 1

You can tell debugger not to stop on some signal with handle command. So in your case it would be:

handle SIGINT nostop

More about it in gdb manual .