coredump

• limit -c unlimited
• core file name /proc/sys/kernet/core_pattern

change it: echo "./my_core" > /proc/sys/kernet/core_pattern

• load a core

    gdb ./xx.elf ./my_core

Remote

GDB 在调试的时候，会通过 RSP 协议进行交互，默认这些信息是不显示的，增加 “set debug remote 1” 的配置，开启这些显示：

GDB指令

• program settings

• set args

• show args
• expression evaluation

• display - print -x

• infomation

• info address - info registers - info files - info line - info registers - info source - info symbol - info types - info variables

• Stack-info

• bt - frame - up
  - down - info args - info frame - info locals - select-frame

• lay next
• break

break main - break main - clear - delete - disable - enable - info

• run
• next
• nexti
• step
• ref
• x/i $pc
• info registers

load

• file file_name
• load
• target remote :3333
• info register
• i
• info breakpoint
• break
• c

use tty target with BMG

• tar ext /dev/ttyACM0

target extended-remote  /dev/cu.usbmodem39A2337132331
目标板的测试程序

• mon s
• att 1
• load

tui

• tui enable /disable
• layout next | prev | src | asm| regs |