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tools/nuttx-gdbinit: improve experience of gdb backend scripts
Redefine built-in command (info thread/thread/c) to compatible with developer habits Test board: ./tools/configure.sh -E lm3s6965-ek:qemu-flat 1. start qemu: qemu-system-arm -M lm3s6965evb -device loader,file=nuttx -serial mon:stdio -nographic -s 2. gdb attach: gdb-multiarch -ix tools/nuttx-gdbinit nuttx -ex "target extended-remote localhost:1234" 3. show thread info and callstack: | (gdb) info thread | * 0 Thread 0x20001548 (Name: Idle Task, State: Running, Priority: 0, Stack: 1000) PC: 0x9eee in up_idle() | 1 Thread 0x20005058 (Name: hpwork, State: Waiting,Semaphore, Priority: 224, Stack: 1992) PC: 0xa124 in up_switch_context() | 2 Thread 0x20005c20 (Name: nsh_main, State: Waiting,Semaphore, Priority: 100, Stack: 2000) PC: 0xa124 in up_switch_context() | 3 Thread 0x20006b30 (Name: NTP daemon, State: Waiting,Semaphore, Priority: 100, Stack: 1952) PC: 0xa124 in up_switch_context() | 4 Thread 0x200086f0 (Name: telnetd, State: Waiting,Semaphore, Priority: 100, Stack: 2008) PC: 0xa124 in up_switch_context() | (gdb) bt | #0 0x00009eee in up_idle () at chip/common/tiva_idle.c:62 | #1 0x00003dd2 in nx_start () at init/nx_start.c:698 | #2 0x00000190 in __start () at chip/common/lmxx_tm4c_start.c:177 | (gdb) thread 4 | 4 Thread 0x200086f0 (Name: telnetd, State: Waiting,Semaphore, Priority: 100, Stack: 2008) PC: 0xa124 in up_switch_context() | (gdb) bt | #0 up_switch_context (tcb=0x20001548 <g_idletcb>, rtcb=rtcb@entry=0x200086f0) at common/arm_switchcontext.c:95 | #1 0x0000453a in nxsem_wait (sem=sem@entry=0x2000916c) at semaphore/sem_wait.c:176 | #2 0x0000197e in _net_timedwait (sem=sem@entry=0x2000916c, interruptible=interruptible@entry=true, timeout=timeout@entry=4294967295) at utils/net_lock.c:101 | #3 0x0000198e in net_sem_timedwait (sem=sem@entry=0x2000916c, timeout=timeout@entry=4294967295) at utils/net_lock.c:242 | #4 0x00001996 in net_sem_wait (sem=sem@entry=0x2000916c) at utils/net_lock.c:330 | #5 0x00025f84 in psock_tcp_accept (psock=<optimized out>, addr=<optimized out>, addrlen=<optimized out>, newconn=newconn@entry=0x2000956c) at tcp/tcp_accept.c:274 | #6 0x00025432 in inet_accept (psock=<optimized out>, addr=<optimized out>, addrlen=<optimized out>, newsock=0x20009568, flags=0) at inet/inet_sockif.c:1443 | #7 0x00027a10 in psock_accept (psock=0x200044b8, addr=addr@entry=0x2000921c, addrlen=addrlen@entry=0x2000920c, newsock=newsock@entry=0x20009568, flags=flags@entry=0) at socket/accept.c:149 | #8 0x00027a8c in accept4 (sockfd=sockfd@entry=3, addr=addr@entry=0x2000921c, addrlen=addrlen@entry=0x2000920c, flags=flags@entry=0) at socket/accept.c:280 | #9 0x0002a256 in accept (sockfd=sockfd@entry=3, addr=addr@entry=0x2000921c, addrlen=addrlen@entry=0x2000920c) at net/lib_accept.c:50 | #10 0x0001efaa in telnetd_daemon (config=config@entry=0x20009290) at telnetd_daemon.c:200 | #11 0x0001e508 in telnetd_main (argc=1, argv=0x20008af8) at telnetd.c:98 | #12 0x00008486 in nxtask_startup (entrypt=0x1e4bd <telnetd_main>, entrypt@entry=0x1 <up_putc>, argc=1, argv=0x20008af8) at sched/task_startup.c:70 | #13 0x000056d2 in nxtask_start () at task/task_start.c:134 | #14 0x00000000 in ?? () | (gdb) c Signed-off-by: chao an <anchao@xiaomi.com>
This commit is contained in:
chao an
Xiang Xiao
+37
-40
@@ -20,7 +20,7 @@
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# NOTE: you need to use gdb configured '--with-python'
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# usage: gdb -ix=./tools/nuttx-gdbinit nuttx
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# new commands: info_nxthreads, nxthread pid, nxcontinue, nxthread_all_bt
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# new commands: nxthread pid, nxthread_all_bt
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# Do not stop with SIGUSR1 which is used for the NuttX sim SMP
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handle SIGUSR1 "nostop" "pass" "noprint"
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@@ -78,24 +78,23 @@ define _examine_target
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python if (type(gdb.lookup_global_symbol("g_assignedtasks")) is gdb.Symbol) : \
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gdb.execute("set $_target_has_smp = 1")
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set $_target_max_tasks = g_npidhash
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printf "target examined\n"
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python print("_target_arch.name=" + _target_arch.name())
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# NOTE: i386:x86-64 (qemu) does not work
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#printf "$_target_arch : %s\n", $_target_arch
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printf "$_target_has_fpu : %d\n", $_target_has_fpu
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printf "$_target_has_smp : %d\n", $_target_has_smp
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set $_target_examined = 1
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end
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end
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define _running_task
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if ($_target_has_smp == 0)
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set $rtcb = (struct tcb_s *)g_readytorun->head
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else
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set $rtcb = (struct tcb_s *)g_assignedtasks[up_cpu_index()]->head
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end
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end
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define _print_thread
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set $tcb = (struct tcb_s *)$arg0
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_running_task
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if ($tcb == $_current_tcb)
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if ($tcb == $rtcb)
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printf "* "
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else
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printf " "
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@@ -137,21 +136,13 @@ define _save_current_tcb
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_examine_target
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if ($_current_tcb == 0)
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if ($_target_has_smp == 0)
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set $tcb = (struct tcb_s *)g_readytorun->head
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_save_tcb $tcb
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else
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set $cpu = up_cpu_index()
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set $tcb = (struct tcb_s *)g_assignedtasks[$cpu]->head
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_save_tcb $tcb
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end
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printf "saved current_tcb (pid=%d)\n", $tcb->pid
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set $_current_tcb = $tcb
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_running_task
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_save_tcb $rtcb
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set $_current_tcb = $rtcb
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end
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end
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define _switch_tcb
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_examine_target
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_save_current_tcb
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# set the current frame to the newest before switching
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@@ -406,36 +397,31 @@ define _switch_tcb_simx86
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end
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define _restore_current_tcb
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# TODO: SMP
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set $tcb = g_readytorun->head
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_switch_tcb $tcb
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_examine_target
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_running_task
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_switch_tcb $rtcb
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set $_current_tcb = 0x0
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end
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define nxthread
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_examine_target
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_save_current_tcb
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set $hash = ($arg0 & ($_target_max_tasks - 1))
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set $hash = ($arg0 & (g_npidhash - 1))
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set $tcb = g_pidhash[$hash]
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if ($tcb != 0x0)
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_switch_tcb $tcb
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_print_thread $tcb
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if ($argc == 1)
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_switch_tcb $tcb
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end
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if ($argc == 2)
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if ($arg1 == 1)
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_switch_tcb $tcb
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where
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_switch_tcb $tcb
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where
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end
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end
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end
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_restore_current_tcb
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end
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define nxthread_all_bt
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_save_current_tcb
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set $i = 0
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while ($i < $_target_max_tasks)
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while ($i < g_npidhash)
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# 1: backtrace
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nxthread $i 1
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set $i = $i + 1
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@@ -443,10 +429,10 @@ define nxthread_all_bt
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_restore_current_tcb
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end
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define info_nxthreads
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define info threads
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_save_current_tcb
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set $i = 0
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while ($i < $_target_max_tasks)
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while ($i < g_npidhash)
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# dummy : 0 0
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nxthread $i 0 0
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set $i = $i + 1
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@@ -454,8 +440,19 @@ define info_nxthreads
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_restore_current_tcb
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end
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define nxcontinue
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printf "nxcontinue\n"
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define c
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_restore_current_tcb
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continue
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end
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define thread
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_save_current_tcb
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if ($argc == 0)
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_running_task
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set $pid = $rtcb->pid
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else
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set $pid = $arg0
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end
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nxthread $pid
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end
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