lunaix-os/scripts/gdb/lunadbg/proc_table_dump.py

   1 import gdb
   2 from .utils import pid_argument
   3
   4 class ProcessHelper:
   5     PS_READY   = 0
   6     PS_RUNNING = 1
   7     PS_TERMNAT = 2
   8     PS_DESTROY = 4
   9     PS_PAUSED  = 8
  10     PS_BLOCKED = 16
  11     PS_CREATED = 32
  12
  13     def get_state(proc: gdb.Value):
  14         state_t = proc["state"]
  15         if (state_t == ProcessHelper.PS_READY):
  16             return "ready"
  17         if (state_t == ProcessHelper.PS_RUNNING):
  18             return "running"
  19         if (state_t & (ProcessHelper.PS_TERMNAT | ProcessHelper.PS_DESTROY)):
  20             return "terminated"
  21         if (state_t & ProcessHelper.PS_BLOCKED):
  22             return "blocked"
  23         if (state_t & ProcessHelper.PS_PAUSED):
  24             return "paused"
  25
  26     def process_at(pid):
  27         return gdb.parse_and_eval(pid_argument(pid))
  28
  29     @staticmethod
  30     def pp_process(proc: gdb.Value):
  31         print("  pid:", proc["pid"])
  32         print("  pgid:", proc["pgid"])
  33         if proc["parent"] == 0:
  34             print(" root process")
  35         else:
  36             print("  ppid:", proc["parent"]["pid"])
  37         print("  page table:", proc["page_table"])
  38
  39         print("  state:", ProcessHelper.get_state(proc))
  40         print("  created: +%dms"%(proc["created"]))
  41         print("  saved context:")
  42         print("     %s"%(proc["intr_ctx"].dereference()
  43                          .format_string(max_depth=3, format='x')
  44                          .replace('\n', '\n     ')))
  45
  46
  47 class ProcessDump(gdb.Command):
  48     """Dump the state of Lunaix PCB"""
  49     def __init__(self) -> None:
  50         super().__init__("proc", gdb.COMMAND_USER)
  51
  52     def invoke(self, argument: str, from_tty: bool) -> None:
  53         argument = pid_argument(argument)
  54
  55         proc = gdb.parse_and_eval(argument)
  56
  57         ProcessHelper.pp_process(proc)
  58
  59 class ProcessTableDump(gdb.Command):
  60     """Dump the state of Lunaix process table"""
  61     def __init__(self) -> None:
  62         super().__init__("proc_table", gdb.COMMAND_USER)
  63
  64     def invoke(self, argument: str, from_tty: bool) -> None:
  65         sched_context = gdb.parse_and_eval("sched_ctx")
  66         total_entries = sched_context["ptable_len"]
  67         print("inited entries: %d"%(total_entries))
  68         print("scheduled pid: %d"%(sched_context["procs_index"]))
  69         print("Process Table:")
  70
  71         for i in range(0, total_entries):
  72             p = ProcessHelper.process_at(i)
  73             if (p == 0):
  74                 continue
  75             state = ProcessHelper.get_state(p)
  76             print("   pid:%02d [%s]"%(i, state))