From: Tom Tromey <tromey@adacore.com>
Date: Fri, 7 Aug 2020 16:26:45 +0000 (-0600)
Subject: Avoid crash in ravenscar_thread_target::wait
X-Git-Tag: gdb-10.1-release~485
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e95465793dedc0a75406c159ad3180d55cd4a94d;p=thirdparty%2Fbinutils-gdb.git

Avoid crash in ravenscar_thread_target::wait

An earlier patch caused a Ravenscar regression in
ravenscar_thread_target::wait.  In particular, add_active_thread can
return NULL when the runtime is not initialized.

gdb/ChangeLog
2020-08-07  Tom Tromey  <tromey@adacore.com>

	* ravenscar-thread.c (ravenscar_thread_target::wait): Check
	runtime_initialized.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 81d0527c59c..d1f70583884 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2020-08-07  Tom Tromey  <tromey@adacore.com>
+
+	* ravenscar-thread.c (ravenscar_thread_target::wait): Check
+	runtime_initialized.
+
 2020-08-07  Tom Tromey  <tromey@adacore.com>
 
 	* ravenscar-thread.c (ravenscar_thread_target): Don't call
diff --git a/gdb/ravenscar-thread.c b/gdb/ravenscar-thread.c
index 7fca51da2a7..47001de42d3 100644
--- a/gdb/ravenscar-thread.c
+++ b/gdb/ravenscar-thread.c
@@ -354,7 +354,8 @@ ravenscar_thread_target::wait (ptid_t ptid,
      because we might try switching threads (and thus sending packets)
      after the remote has disconnected.  */
   if (status->kind != TARGET_WAITKIND_EXITED
-      && status->kind != TARGET_WAITKIND_SIGNALLED)
+      && status->kind != TARGET_WAITKIND_SIGNALLED
+      && runtime_initialized ())
     {
       m_base_ptid = event_ptid;
       this->update_thread_list ();