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, 36 insertions, 1 deletions

diff --git a/gdb/mi/mi-main.c b/gdb/mi/mi-main.c
index 7f5ec2f6778..ed925594839 100644
--- a/gdb/mi/mi-main.c
+++ b/gdb/mi/mi-main.c
@@ -48,6 +48,7 @@
 #include "language.h"
 #include "valprint.h"
 #include "inferior.h"
+#include "osdata.h"
 
 #include <ctype.h>
 #include <sys/time.h>
@@ -378,7 +379,41 @@ mi_cmd_list_thread_groups (char *command, char **argv, int argc)
 
   back_to = make_cleanup (&null_cleanup, NULL);
 
-  if (id)
+  if (available && id)
+    {
+      error (_("Can only report top-level available thread groups"));
+    }
+  else if (available)
+    {
+      struct osdata *data = get_osdata ("processes");
+      struct osdata_item *item;
+      int ix_items;
+
+      make_cleanup_ui_out_list_begin_end (uiout, "groups");
+      
+      for (ix_items = 0;
+          VEC_iterate (osdata_item_s, data->items,
+                       ix_items, item);
+	   ix_items++)
+	{
+	  struct cleanup *back_to = 
+	    make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
+
+	  const char *pid = get_osdata_column (item, "pid");
+	  const char *cmd = get_osdata_column (item, "command");
+	  const char *user = get_osdata_column (item, "user");
+
+	  ui_out_field_fmt (uiout, "id", "%s", pid);
+	  ui_out_field_string (uiout, "type", "process");
+	  if (cmd)
+	    ui_out_field_string (uiout, "description", cmd);
+	  if (user)
+	    ui_out_field_string (uiout, "user", user);
+  
+	  do_cleanups (back_to);	  
+	}
+    }
+  else if (id)
     {
       int pid = atoi (id);
       if (!in_inferior_list (pid))