kdb: Setup basic kdb state before invoking commands via kgdb

Although invasive kdb commands are not supported via kgdb, some useful
non-invasive commands like bt* require basic kdb state to be setup before
calling into the kdb code. Factor out some of this code and call it before
and after executing kdb commands via kgdb.

Signed-off-by: Matt Klein <mklein@twitter.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
index ce615e064482..ea5e3edb6915 100644
--- a/kernel/debug/gdbstub.c
+++ b/kernel/debug/gdbstub.c
@@ -782,7 +782,10 @@ static void gdb_cmd_query(struct kgdb_state *ks)
                         len = len / 2;
                         remcom_out_buffer[len++] = 0;
 
+                        kdb_common_init_state(ks);
                         kdb_parse(remcom_out_buffer);
+                        kdb_common_deinit_state();
+
                         strcpy(remcom_out_buffer, "OK");
                 }
                 break;