Implement -list-thread-groups --available

        * Makefile.in (XMLFILES): Add osdata.dtd.
        (SFILES): Add osdata.c.
        (COMMON_OBS): Add osdata.o.
        * linux-nat.c: Include pwd.h, sys/types.h, gdb_dirent.h and xml-support.h.
        (linux_nat_xfer_osdata): New function.
        (linux_xfer_partial): Handle TARGET_OBJECT_OSDATA.
        * osdata.c: New file.
        * osdata.h: New file.
        * remote.c (PACKET_qXfer_osdata): New packet enum.
        (remote_protocol_features): Add "qXfer:osdata:read".
        (remote_read_qxfer): Handle TARGET_OBJECT_OSDATA.
        (extended_remote_can_run): New.
        (init_extended_remote_ops): Set to_can_run to
        extended_remote_can_run.
        (_initialize_remote): Add packet config command for
        "qXfer:osdata:read".
        * xml-support.c (obstack_xml_printf): New function.
        * xml-support.h (obstack_xml_printf): Declare.
        * target.c (target_get_osdata): New function.
        * target.h (enum target_object): Add TARGET_OBJECT_OSDATA.
        (target_os_data): Declare.
        * features/osdata.dtd: New file.
        * mi/mi-main.c (mi_list_thread_groups): Handle the --available
        option.

1 files changed, 23 insertions, 0 deletions

diff --git a/gdb/remote.c b/gdb/remote.c
index 06ab783..c8a46ee 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -992,6 +992,7 @@ enum {
   PACKET_qXfer_memory_map,
   PACKET_qXfer_spu_read,
   PACKET_qXfer_spu_write,
+  PACKET_qXfer_osdata,
   PACKET_qGetTLSAddr,
   PACKET_qSupported,
   PACKET_QPassSignals,
@@ -2958,6 +2959,8 @@ static struct protocol_feature remote_protocol_features[] = {
     PACKET_qXfer_spu_read },
   { "qXfer:spu:write", PACKET_DISABLE, remote_supported_packet,
     PACKET_qXfer_spu_write },
+  { "qXfer:osdata:read", PACKET_DISABLE, remote_supported_packet,
+    PACKET_qXfer_osdata },
   { "QPassSignals", PACKET_DISABLE, remote_supported_packet,
     PACKET_QPassSignals },
   { "QStartNoAckMode", PACKET_DISABLE, remote_supported_packet,
@@ -7355,6 +7358,13 @@ remote_xfer_partial (struct target_ops *ops, enum target_object object,
       return remote_read_qxfer (ops, "memory-map", annex, readbuf, offset, len,
 				&remote_protocol_packets[PACKET_qXfer_memory_map]);
 
+    case TARGET_OBJECT_OSDATA:
+      /* Should only get here if we're connected.  */
+      gdb_assert (remote_desc);
+      return remote_read_qxfer
+       (ops, "osdata", annex, readbuf, offset, len,
+        &remote_protocol_packets[PACKET_qXfer_osdata]);
+
     default:
       return -1;
     }
@@ -8647,6 +8657,15 @@ remote_supports_multi_process (void)
   return remote_multi_process_p (rs);
 }
 
+static int
+extended_remote_can_run (void)
+{
+  if (remote_desc != NULL)
+    return 1;
+
+  return 0;
+}
+
 static void
 init_remote_ops (void)
 {
@@ -8732,6 +8751,7 @@ Specify the serial device it is connected to (e.g. /dev/ttya).";
   extended_remote_ops.to_detach = extended_remote_detach;
   extended_remote_ops.to_attach = extended_remote_attach;
   extended_remote_ops.to_kill = extended_remote_kill;
+  extended_remote_ops.to_can_run = extended_remote_can_run;
 }
 
 static int
@@ -9041,6 +9061,9 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL,
   add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_spu_write],
                          "qXfer:spu:write", "write-spu-object", 0);
 
+  add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_osdata],
+                        "qXfer:osdata:read", "osdata", 0);
+
   add_packet_config_cmd (&remote_protocol_packets[PACKET_qGetTLSAddr],
 			 "qGetTLSAddr", "get-thread-local-storage-address",
 			 0);