[gnome-builder/gnome-builder-3-30] gdb: emit thread-selected upon *stopped, event

[Christian Hergert <chergert src gnome org>]

commit 5065db1d8e46e16351da7f2f862b59f53db1cfca
Author: Christian Hergert <chergert redhat com>
Date:   Fri Jan 11 18:34:33 2019 -0800

    gdb: emit thread-selected upon *stopped, event
    
    If we get the thread-id from the stopped event, we need to propagate that
    to the IdeDebugger so that the UI keeps the proper thread visible.
    
    Patch was provided by Simo in #748

 src/plugins/gdb/gbp-gdb-debugger.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)
---
diff --git a/src/plugins/gdb/gbp-gdb-debugger.c b/src/plugins/gdb/gbp-gdb-debugger.c
index 8b1eb0764..670e4f11b 100644
--- a/src/plugins/gdb/gbp-gdb-debugger.c
+++ b/src/plugins/gdb/gbp-gdb-debugger.c
@@ -538,9 +538,11 @@ gbp_gdb_debugger_handle_stopped (GbpGdbDebugger                 *self,
 {
   IdeDebuggerStopReason stop_reason;
   g_autoptr(IdeDebuggerBreakpoint) breakpoint = NULL;
+  g_autoptr(IdeDebuggerThread) thread = NULL;
   g_autofree gchar *file = NULL;
   g_autofree gchar *fullname = NULL;
-  G_GNUC_UNUSED const gchar *thread_id = NULL;
+  const gchar *thread_id = NULL;
+  const gchar *group_id = NULL;
   const struct gdbwire_mi_result *iter;
   const gchar *id = NULL;
   const gchar *reason = NULL;
@@ -573,6 +575,8 @@ gbp_gdb_debugger_handle_stopped (GbpGdbDebugger                 *self,
             disp = iter->variant.cstring;
           else if (g_strcmp0 (iter->variable, "bkptno") == 0)
             id = iter->variant.cstring;
+          else if (g_strcmp0 (iter->variable, "group-id") == 0)
+            group_id = iter->variant.cstring;
         }
       else if (iter->kind == GDBWIRE_MI_TUPLE)
         {
@@ -656,6 +660,10 @@ gbp_gdb_debugger_handle_stopped (GbpGdbDebugger                 *self,
 
   gbp_gdb_debugger_reload_breakpoints (self);
 
+  thread = ide_debugger_thread_new (thread_id);
+  ide_debugger_thread_set_group (thread, group_id);
+
+  ide_debugger_emit_thread_selected (IDE_DEBUGGER (self), thread);
   ide_debugger_emit_stopped (IDE_DEBUGGER (self), stop_reason, breakpoint);
 }