pw_sync: add lock safety annotations for C++ clang usage
Adds clang thread safety annotations to the interrupt spin lock for
C++ usage. Note that this is only checked when compiling with clang.
C APIs explicitly escape the thread safety annotations.
Change-Id: Ic829afd41b3978c507ebe294d34e1e0dc03865b4
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/40241
Reviewed-by: Keir Mierle <keir@google.com>
Reviewed-by: Wyatt Hepler <hepler@google.com>
Pigweed-Auto-Submit: Ewout van Bekkum <ewout@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
diff --git a/pw_sync/interrupt_spin_lock.cc b/pw_sync/interrupt_spin_lock.cc
index 9a8ec6a..659ed19 100644
--- a/pw_sync/interrupt_spin_lock.cc
+++ b/pw_sync/interrupt_spin_lock.cc
@@ -14,6 +14,8 @@
#include "pw_sync/interrupt_spin_lock.h"
+#include "pw_sync/lock_annotations.h"
+
extern "C" void pw_sync_InterruptSpinLock_Lock(
pw_sync_InterruptSpinLock* interrupt_spin_lock) {
interrupt_spin_lock->lock();