From: Avik Sil <avik.sil@linaro.org>
Date: Mon, 19 Sep 2011 16:38:52 +0000 (-0400)
Subject: ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address (missing file)
X-Git-Tag: v2.0-pre9~28
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=cab3c961c62a7b21cd2968aef37f24b4165bf800;p=lttng-modules.git

ARM: Set bit 0 for thumb mode in kallsyms_lookup_name returned address (missing file)

Adding missing file in commit c539a324b020171c10d0fcb100892ac93c17e9e7

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/wrapper/kallsyms.h b/wrapper/kallsyms.h
new file mode 100644
index 00000000..bb45f38a
--- /dev/null
+++ b/wrapper/kallsyms.h
@@ -0,0 +1,28 @@
+#ifndef _LTT_WRAPPER_KALLSYMS_H
+#define _LTT_WRAPPER_KALLSYMS_H
+
+/*
+ * Copyright (C) 2011 Avik Sil (avik.sil@linaro.org)
+ *
+ * wrapper around kallsyms_lookup_name. Implements arch-dependent code for
+ * arches where the address of the start of the function body is different
+ * from the pointer which can be used to call the function, e.g. ARM THUMB2.
+ *
+ * Dual LGPL v2.1/GPL v2 license.
+ */
+
+static inline
+unsigned long kallsyms_lookup_funcptr(const char *name)
+{
+	unsigned long addr;
+
+	addr = kallsyms_lookup_name(name);
+#ifdef CONFIG_ARM
+#ifdef CONFIG_THUMB2_KERNEL
+	if (addr)
+		addr |= 1; /* set bit 0 in address for thumb mode */
+#endif
+#endif
+	return addr;
+}
+#endif /* _LTT_WRAPPER_KALLSYMS_H */