Support to multi-threading and pthread interface (POSIX.1-2008) (#23)

[lunaix-os.git] / lunaix-os / scripts / gdb / lunadbg / structs / pcb.py

diff --git a/lunaix-os/scripts/gdb/lunadbg/structs/pcb.py b/lunaix-os/scripts/gdb/lunadbg/structs/pcb.py
new file mode 100644 (file)
index 0000000..5fc3a65
--- /dev/null
+++ b/lunaix-os/scripts/gdb/lunadbg/structs/pcb.py
@@ -0,0 +1,69 @@
+import gdb
+from ..pp import MyPrettyPrinter
+from . import KernelStruct
+from ..utils import pid_argument, llist_foreach, get_dnode_path
+
+
+class ProcInfo(KernelStruct):
+    def __init__(self, gdb_inferior: gdb.Value) -> None:
+        super().__init__(gdb_inferior, ProcInfo)
+    
+    @staticmethod
+    def get_type() -> gdb.Type:
+        return gdb.lookup_type("struct proc_info").pointer()
+    
+    def print_detailed(self, pp : MyPrettyPrinter, *args):
+        self.print_abstract(pp)
+        
+        pp2 = (pp.next_level()
+                 .clear_prefix())
+        self.print_simple(pp2)
+
+    def print_simple(self, pp : MyPrettyPrinter, *args):
+        pp.print_field(self._kstruct, 'pid')
+        pp.print_field(self._kstruct, 'pgid')
+        pp.print_field(self._kstruct, 'parent', fmt="(pid=%d)", cast=lambda v: v["pid"])
+        pp.print_field(self._kstruct, 'cwd', cast=lambda v: get_dnode_path(v))
+        pp.print_field(self._kstruct, 'created', '+%dms')
+        pp.print_field(self._kstruct, 'exit_code')
+        pp.print_field(self._kstruct, 'thread_count')
+        
+        pp.printf("active thread: (tid=%d)", self._kstruct['th_active']['tid'])
+
+    def print_abstract(self, pp : MyPrettyPrinter, *args):
+        pid = self._kstruct['pid']
+        ppid = self._kstruct['parent']['pid']
+        cmd = self._kstruct['cmd']
+        cmd = cmd.string() if cmd != 0 else ''
+        state = ProcInfo.get_state(self._kstruct["state"])
+        
+        pp.print(f"pid={pid}, ppid={ppid}, cmd='{cmd}', {state}")
+
+
+    PS_READY   = 0
+    PS_RUNNING = 1
+    PS_TERMNAT = 2
+    PS_DESTROY = 4
+    PS_PAUSED  = 8
+    PS_BLOCKED = 16
+    PS_CREATED = 32
+
+    @staticmethod
+    def get_state(state_t):
+        if (state_t == ProcInfo.PS_READY):
+            return "ready"
+        if (state_t == ProcInfo.PS_RUNNING):
+            return "running"
+        if (state_t & (ProcInfo.PS_TERMNAT | ProcInfo.PS_DESTROY)):
+            return "terminated"
+        if (state_t & ProcInfo.PS_BLOCKED):
+            return "blocked"
+        if (state_t & ProcInfo.PS_PAUSED):
+            return "paused"
+        return "<unknown> (0x%x)"%(state_t)
+    
+    @staticmethod
+    def process_at(pid):
+        return ProcInfo(gdb.parse_and_eval(pid_argument(pid)))
+    
+    
\ No newline at end of file