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70 lines
2.8 KiB
Python
70 lines
2.8 KiB
Python
import gdb, traceback;
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'''
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Usage:
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nn_coroutines
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nn_coroutines 1000
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'''
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class NnCouroutines(gdb.Command):
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def __init__(self):
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super(NnCouroutines, self).__init__('nn_coroutines', gdb.COMMAND_DATA)
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# https://sourceware.org/gdb/current/onlinedocs/gdb/Python-API.html#Python-API
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def invoke(self, arg, from_tty):
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nn_interval=1000
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nn_coroutines = 1
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# Parse args.
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args = arg.split(' ')
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if args[0] != '':
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nn_interval = int(args[0])
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try:
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pnext = prev = pthis = gdb.parse_and_eval('&_st_this_thread->tlink').__str__()
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print('interval: %s, first: %s, args(%s): %s'%(nn_interval, pthis, len(args), args))
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while True:
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v = gdb.parse_and_eval('((_st_clist_t*)%s)->next'%pnext)
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prev = pnext = str(v.__str__()).split(' ')[0]
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if pnext == pthis:
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break
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nn_coroutines += 1
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if (nn_coroutines%nn_interval) == 0:
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print('next is %s, total %s'%(pnext, nn_coroutines))
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except:
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print('Error: prev=%s, this=%s, next=%s, v=%s'%(prev, pthis, pnext, v))
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traceback.print_exc()
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# Result.
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print('total coroutines: %s'%(nn_coroutines))
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NnCouroutines()
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'''
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Usage:
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show_coroutines
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'''
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class ShowCouroutines(gdb.Command):
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def __init__(self):
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super(ShowCouroutines, self).__init__('show_coroutines', gdb.COMMAND_DATA)
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# https://sourceware.org/gdb/current/onlinedocs/gdb/Python-API.html#Python-API
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def invoke(self, arg, from_tty):
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offset = gdb.parse_and_eval('(int)(&(((_st_thread_t*)(0))->tlink))').__str__()
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_st_this_thread = gdb.parse_and_eval('_st_this_thread').__str__()
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pnext = prev = pthis = gdb.parse_and_eval('&_st_this_thread->tlink').__str__()
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this_thread2 = gdb.parse_and_eval('(_st_thread_t*)(%s - %s)'%(pthis, offset)).__str__()
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#print('offset=%s, _st_this_thread=%s, pthis-offset=%s'%(offset, _st_this_thread, this_thread2))
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try:
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while True:
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trd = gdb.parse_and_eval('(_st_thread_t*)(%s - %s)'%(pnext, offset)).__str__()
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jmpbuf = gdb.parse_and_eval('((_st_thread_t*)%s)->context.__jmpbuf'%(trd)).__str__().split(', ')
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rbp, rsp, crip = int(jmpbuf[1]), int(jmpbuf[6]), None
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if rbp > 0 and rsp > 0:
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crip = gdb.execute('x/2xa %s'%(rbp), to_string=True).split('\t')[2].strip()
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print('thread: %s, caller: %s'%(trd, crip))
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v = gdb.parse_and_eval('((_st_clist_t*)%s)->next'%pnext)
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prev = pnext = str(v.__str__()).split(' ')[0]
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if pnext == pthis:
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break
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except:
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print('Error: prev=%s, this=%s, next=%s'%(prev, pthis, pnext))
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traceback.print_exc()
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ShowCouroutines()
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