diff options
| -rw-r--r-- | scripts/qemu-gdb.py | 1 | ||||
| -rw-r--r-- | scripts/qemugdb/coroutine.py | 28 |
2 files changed, 28 insertions, 1 deletions
diff --git a/scripts/qemu-gdb.py b/scripts/qemu-gdb.py index e0bfa7b5a4..4d2a9f6c43 100644 --- a/scripts/qemu-gdb.py +++ b/scripts/qemu-gdb.py @@ -40,6 +40,7 @@ timers.TimersCommand() coroutine.CoroutineSPFunction() coroutine.CoroutinePCFunction() +coroutine.CoroutineBt() # Default to silently passing through SIGUSR1, because QEMU sends it # to itself a lot. diff --git a/scripts/qemugdb/coroutine.py b/scripts/qemugdb/coroutine.py index e1399211e6..7db46d4b68 100644 --- a/scripts/qemugdb/coroutine.py +++ b/scripts/qemugdb/coroutine.py @@ -88,8 +88,11 @@ def bt_jmpbuf(jmpbuf): selected_frame.select() +def co_cast(co): + return co.cast(gdb.lookup_type('CoroutineUContext').pointer()) + def coroutine_to_jmpbuf(co): - coroutine_pointer = co.cast(gdb.lookup_type('CoroutineUContext').pointer()) + coroutine_pointer = co_cast(co) return coroutine_pointer['env']['__jmpbuf'] @@ -107,6 +110,29 @@ class CoroutineCommand(gdb.Command): bt_jmpbuf(coroutine_to_jmpbuf(gdb.parse_and_eval(argv[0]))) +class CoroutineBt(gdb.Command): + '''Display backtrace including coroutine switches''' + def __init__(self): + gdb.Command.__init__(self, 'qemu bt', gdb.COMMAND_STACK, + gdb.COMPLETE_NONE) + + def invoke(self, arg, from_tty): + + gdb.execute("bt") + + if gdb.parse_and_eval("qemu_in_coroutine()") == False: + return + + co_ptr = gdb.parse_and_eval("qemu_coroutine_self()") + + while True: + co = co_cast(co_ptr) + co_ptr = co["base"]["caller"] + if co_ptr == 0: + break + gdb.write("Coroutine at " + str(co_ptr) + ":\n") + bt_jmpbuf(coroutine_to_jmpbuf(co_ptr)) + class CoroutineSPFunction(gdb.Function): def __init__(self): gdb.Function.__init__(self, 'qemu_coroutine_sp') |