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, 39 insertions, 0 deletions

diff --git a/gdb/xml-support.c b/gdb/xml-support.c
index 0809844e7c5..e7f6279ae89 100644
--- a/gdb/xml-support.c
+++ b/gdb/xml-support.c
@@ -997,6 +997,45 @@ xml_escape_text (const char *text)
   return result;
 }
 
+void
+obstack_xml_printf (struct obstack *obstack, const char *format, ...)
+{
+  va_list ap;
+  const char *f;
+  const char *prev;
+  int percent = 0;
+
+  va_start (ap, format);
+
+  prev = format;
+  for (f = format; *f; f++)
+    {
+      if (percent)
+       {
+         switch (*f)
+           {
+           case 's':
+             {
+               char *p;
+               char *a = va_arg (ap, char *);
+               obstack_grow (obstack, prev, f - prev - 1);
+               p = xml_escape_text (a);
+               obstack_grow_str (obstack, p);
+               xfree (p);
+               prev = f + 1;
+             }
+             break;
+           }
+         percent = 0;
+       }
+      else if (*f == '%')
+       percent = 1;
+    }
+
+  obstack_grow_str (obstack, prev);
+  va_end (ap);
+}
+
 void _initialize_xml_support (void);
 
 void