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Documentation:update qemugdb usage

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Remove nuttx-gdbinit,use tools/gdb/__init__.py instead

Signed-off-by: anjiahao <anjiahao@xiaomi.com>
This commit is contained in:
anjiahao
2024-04-20 11:47:58 +08:00
committed by Xiang Xiao
parent d59f9186ca
commit 67b7152034
1 changed files with 21 additions and 30 deletions
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Documentation/guides/qemugdb.rst
+21 -30
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@@ -53,42 +53,33 @@ Start GDB to connect to QEMU
.. code-block:: console .. code-block:: console
$ gdb-multiarch -ix tools/nuttx-gdbinit nuttx $ gdb-multiarch nuttx -ex "source tools/gdb/__init__.py" -ex "target remote 127.0.0.1:1234"
(gdb) target extended-remote localhost:1234 Type "apropos word" to search for commands related to "word"...
Remote debugging using localhost:1234 Reading symbols from nuttx...
0x000012ee in up_mdelay (milliseconds=milliseconds@entry=250) set pagination off
at common/arm_mdelay.c:51 source tools/gdb/lists.py
51 for (j = 0; j < CONFIG_BOARD_LOOPSPERMSEC; j++) source tools/gdb/utils.py
source tools/gdb/memdump.py
if use thread command, please don't use 'continue', use 'c' instead !!!
source tools/gdb/thread.py
"handle SIGUSR1 "nostop" "pass" "noprint"
Remote debugging using 127.0.0.1:1234
0x0000a45a in up_idle () at chip/common/tiva_idle.c:62
62 }
(gdb) (gdb)
#. From (gdb) prompt you can run commands to inpect NuttX: #. From (gdb) prompt you can run commands to inpect NuttX:
.. code-block:: console .. code-block:: console
(gdb) info_nxthreads (gdb) info threads
target examined Id Thread Info Frame
_target_arch.name=armv7 *0 Thread 0x2000168c (Name: Idle_Task, State: Running, Priority: 0, Stack: 1008) 0xa45a up_idle() at chip/common/tiva_idle.c:62
$_target_has_fpu : 1 1 Thread 0x20005270 (Name: hpwork, State: Waiting,Semaphore, Priority: 224, Stack: 1984) 0xa68c up_switch_context() at common/arm_switchcontext.c:95
$_target_has_smp : 0 2 Thread 0x20005e30 (Name: nsh_main, State: Waiting,Semaphore, Priority: 100, Stack: 2008) 0xa68c up_switch_context() at common/arm_switchcontext.c:95
saved current_tcb (pid=0) 3 Thread 0x20006d48 (Name: NTP_daemon, State: Waiting,Signal, Priority: 100, Stack: 1960) 0xa68c up_switch_context() at common/arm_switchcontext.c:95
* 4 Thread 0x20008b60 (Name: telnetd, State: Waiting,Semaphore, Priority: 100, Stack: 2016) 0xa68c up_switch_context() at common/arm_switchcontext.c:95
0 Thread 0x20001538 (Name: Idle Task, State: Running, Priority: 0, Stack: 464/1000) PC: 0x12fc in up_mdelay()
saved current_tcb (pid=0)
1 Thread 0x20005060 (Name: hpwork, State: Waiting,Semaphore, Priority: 224, Stack: 320/1992) PC: 0x47dd in work_thread()
saved current_tcb (pid=0)
2 Thread 0x20005c30 (Name: nsh_main, State: Waiting,Semaphore, Priority: 100, Stack: 1016/2000) PC: 0x1 in _vectors()
saved current_tcb (pid=0)
3 Thread 0x20006b40 (Name: NTP daemon, State: Waiting,Signal, Priority: 100, Stack: 864/1952) PC: 0x0 in _vectors()
saved current_tcb (pid=0)
4 Thread 0x20008540 (Name: telnetd, State: Waiting,Semaphore, Priority: 100, Stack: 616/2008) PC: 0x20008fd4 in No()
saved current_tcb (pid=0)
saved current_tcb (pid=0)
saved current_tcb (pid=0)
saved current_tcb (pid=0)
(gdb) (gdb)
As you can see QEMU and GDB are powerful tools to debug NuttX without using external board or expensive debugging hardware. As you can see QEMU and GDB are powerful tools to debug NuttX without using external board or expensive debugging hardware.