Debug in Zephyr

Debug the "hello world" program executed in qemu_x86

1. Build

west build -b qemu_x86 samples/hello_world

2. Go to the "build" path, start gdbserver in qemu and waiting for connection

ninja debugserver

3. Start gdb

gdb zephyr.elf

4. connect to the gdbserver

(gdb) target remote 127.0.0.1:1234

Debug the "hello world" program executed in FRDM_K64F

1. delete previous build files, or there will be a "CMake Error"

CMake Error: The source "~/zephyrproject/zephyr/samples/hello_world/CMakeLists.txt" does not match the source "~/zephyrproject/zephyr/CMakeLists.txt" used to generate cache.

rm -rf build

2. build && flash

west build -b frdm_k64f samples/hello_world
west flash

3. start debugger

west debug

4. choose the breakpoint, or the program will start at the z_arm_reset() in arch/arm/core/aarch32/cortex_m/reset.S

(gdb) b main.c:main

5. Then you can start the program by continue.