X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=ps%2Fvirt_ps.ml;h=fe538a9f15b17e3230cce4bce64abe01e4726865;hb=a877867243635176be3dc7735520fdd9a4098e10;hp=a9bcf1fc1b7b743e720204ef25ae0668ca4a4d74;hpb=a011989407845136f4aea12589b020fc1b4185c6;p=virt-mem.git

diff --git a/ps/virt_ps.ml b/ps/virt_ps.ml
index a9bcf1f..fe538a9 100644
--- a/ps/virt_ps.ml
+++ b/ps/virt_ps.ml
@@ -25,77 +25,24 @@ open Virt_mem_types
 
 open Kernel_task_struct
 
-let run debug (image, ksymmap, utsname) =
-  try
-    let { domname = domname } = image in
+let run debug { domname = domname; mem = mem } { tasks = tasks } =
+  let tasks = Option.get tasks in
 
-    let kernel_version =
-      match utsname with
-      | None ->
-	  eprintf (f_"%s: could not guess kernel version\n") domname;
-	  raise Exit
-      | Some { kernel_release = v } -> v in
+  (* Sort tasks by PID. *)
+  let cmp { task_pid = p1 } { task_pid = p2 } = compare p1 p2 in
+  let tasks = List.sort cmp tasks in
 
-    if not (task_struct_known kernel_version) then (
-      eprintf (f_"%s: %s: unknown kernel version
-Try a newer version of virt-mem, or if the guest is not from a
-supported Linux distribution, see this page about adding support:
-  http://et.redhat.com/~rjones/virt-mem/faq.html\n") domname kernel_version;
-      raise Exit
-    );
+  printf "  PID STAT COMMAND\n";
 
-    let task_struct_size = task_struct_size kernel_version in
-
-    let init_task, init_task_addr =
-      let init_task_addr =
-	try Ksymmap.find "init_task" ksymmap
-	with Not_found ->
-	  eprintf (f_"%s: could not find init_task in kernel image\n") domname;
-	  raise Exit in
-      let init_task =
-	get_task_struct kernel_version image.mem init_task_addr in
-      init_task, init_task_addr in
-
-    (* Starting at init_task, navigate through the linked list of
-     * tasks (through tasks.next).  Grab each task_struct as we go.
-     *)
-    let tasks, image =
-      let rec loop image acc task =
-	let next = task.task_struct_tasks'next in
-	if next <> init_task_addr then (
-	  let mapped =
-	    Virt_mem_mmap.is_mapped_range image.mem next task_struct_size in
-	  let image =
-	    if not mapped then load_memory image next task_struct_size
-	    else image in
-	  let task = get_task_struct kernel_version image.mem next in
-	  let task = {
-	    task with
-	      task_struct_comm = truncate_c_string task.task_struct_comm
-	  } in
-	  let acc = task :: acc in
-	  loop image acc task
-	) else
-	  acc, image
-      in
-      loop image [] init_task in
-
-    (* Sort tasks by PID. *)
-    let cmp { task_struct_pid = p1 } { task_struct_pid = p2 } = compare p1 p2 in
-    let tasks = List.sort cmp tasks in
-
-    printf "  PID STAT COMMAND\n";
-
-    List.iter (
-      fun task ->
-	printf "%5Ld      %s\n" task.task_struct_pid task.task_struct_comm
-    ) tasks
-
-  with Exit -> ()
+  List.iter (
+    fun task ->
+      printf "%5Ld      %s\n" task.task_pid task.task_comm
+  ) tasks
 
 let summary = s_"list processes in virtual machine"
 let description = s_"\
 virt-ps prints a process listing for virtual machines running under
 libvirt."
 
-let () = Virt_mem.register "ps" summary description ~run
+let () =
+  Virt_mem.register "ps" summary description ~needs_tasks:true ~run