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-rw-r--r--gdb/observable.c1
-rw-r--r--gdb/observable.h3
-rw-r--r--gdb/target.c2
3 files changed, 6 insertions, 0 deletions
diff --git a/gdb/observable.c b/gdb/observable.c
index 5906e58..28249a5 100644
--- a/gdb/observable.c
+++ b/gdb/observable.c
@@ -62,6 +62,7 @@ DEFINE_OBSERVABLE (architecture_changed);
DEFINE_OBSERVABLE (thread_ptid_changed);
DEFINE_OBSERVABLE (inferior_added);
DEFINE_OBSERVABLE (inferior_appeared);
+DEFINE_OBSERVABLE (inferior_pre_detach);
DEFINE_OBSERVABLE (inferior_exit);
DEFINE_OBSERVABLE (inferior_removed);
DEFINE_OBSERVABLE (memory_changed);
diff --git a/gdb/observable.h b/gdb/observable.h
index aed326e..efd0446 100644
--- a/gdb/observable.h
+++ b/gdb/observable.h
@@ -181,6 +181,9 @@ extern observable<struct inferior */* inf */> inferior_added;
process. */
extern observable<struct inferior */* inf */> inferior_appeared;
+/* Inferior INF is about to be detached. */
+extern observable<struct inferior */* inf */> inferior_pre_detach;
+
/* Either the inferior associated with INF has been detached from
the process, or the process has exited. */
extern observable<struct inferior */* inf */> inferior_exit;
diff --git a/gdb/target.c b/gdb/target.c
index d5bfd7d..d0aa8f5 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -2528,6 +2528,8 @@ target_detach (inferior *inf, int from_tty)
prepare_for_detach ();
+ gdb::observers::inferior_pre_detach.notify (inf);
+
/* Hold a strong reference because detaching may unpush the
target. */
auto proc_target_ref = target_ops_ref::new_reference (inf->process_target ());