[GitHub] [nuttx] chirping78 commented on issue #8616: gdb function info_nxthreads show the PC incorrectly for cortex-m

[via GitHub]

chirping78 commented on issue #8616:
URL: https://github.com/apache/nuttx/issues/8616#issuecomment-1439583447

   This issue can also be reproduced on real hardware. Here are steps on 
stm32f4discovery.
   
   1. build nuttx
   ```
   ./tools/configure.sh -E stm32f4discovery:nsh
   make
   kconfig-tweak --enable CONFIG_DEBUG_SYMBOLS
   make oldconfig
   make
   ```
   
   2. connect USB cable and start openocd
   ```
   openocd -f interface/stlink-v2.cfg -f target/stm32f4x.cfg 
   ```
   
   3. gdb attach
   ```
   gdb-multiarch -ix tools/nuttx-gdbinit nuttx
   (gdb) target extended-remote localhost:3333
   (gdb) load
   (gdb) c
   
   ^C
   Program received signal SIGINT, Interrupt.
   up_idle () at chip/stm32_idle.c:191
   191       END_IDLE();
   (gdb) info_nxthreads
   saved current_tcb (pid=0)
   * 0 Thread 0x20000230  (Name: Idle Task, State: Running, Priority: 0, Stack: 
0/1000) PC: 0x8004e6e in up_idle()
   saved current_tcb (pid=0)
   saved current_tcb (pid=0)
     2 Thread 0x10000db0  (Name: nsh_main, State: Waiting,Semaphore, Priority: 
100, Stack: 0/2000) PC: 0x1 in No()
   saved current_tcb (pid=0)
   saved current_tcb (pid=0)
   (gdb)
   
   ```


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