From 323e1a8fac276f008e6d5146a83cbc88edeabc87 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@swtch.com>
Date: Wed, 8 Jan 2020 22:27:29 -0500
Subject: lib9: add getcallerpc.c (fixes build)

---
 src/lib9/getcallerpc.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 src/lib9/getcallerpc.c

diff --git a/src/lib9/getcallerpc.c b/src/lib9/getcallerpc.c
new file mode 100644
index 00000000..3067f053
--- /dev/null
+++ b/src/lib9/getcallerpc.c
@@ -0,0 +1,13 @@
+#include <u.h>
+#include <libc.h>
+
+/*
+ * On gcc and clang, getcallerpc is a macro invoking a compiler builtin.
+ * If the macro in libc.h did not trigger, there's no implementation.
+ */
+#undef getcallerpc
+ulong
+getcallerpc(void *v)
+{
+	return 1;
+}
-- 
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