#define _LTTNG_WRAPPER_KALLSYMS_H
/*
- * Copyright (C) 2011 Avik Sil (avik.sil@linaro.org)
+ * wrapper/kallsyms.h
*
* 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.
+ * Copyright (C) 2011 Avik Sil (avik.sil@linaro.org)
+ * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; only
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/kallsyms.h>
+/*
+ * PowerPC ABIv1 needs KALLSYMS_ALL to get the function descriptor,
+ * which is needed to perform the function call.
+ */
+#if defined(CONFIG_PPC64) && (!defined(_CALL_ELF) || _CALL_ELF < 2)
+# ifndef CONFIG_KALLSYMS_ALL
+# error "LTTng-modules requires CONFIG_KALLSYMS_ALL on PowerPC ABIv1"
+# endif
+#endif
+
static inline
unsigned long kallsyms_lookup_funcptr(const char *name)
{
#endif
return addr;
}
+
+static inline
+unsigned long kallsyms_lookup_dataptr(const char *name)
+{
+ return kallsyms_lookup_name(name);
+}
#endif /* _LTTNG_WRAPPER_KALLSYMS_H */