56 lines
1.3 KiB
Plaintext
56 lines
1.3 KiB
Plaintext
dnl #
|
|
dnl # Ensure the DECLARE_EVENT_CLASS macro is available to non-GPL modules.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_DECLARE_EVENT_CLASS], [
|
|
AC_MSG_CHECKING([whether DECLARE_EVENT_CLASS() is available])
|
|
ZFS_LINUX_TRY_COMPILE_HEADER([
|
|
#include <linux/module.h>
|
|
MODULE_LICENSE("$ZFS_META_LICENSE");
|
|
|
|
#define CREATE_TRACE_POINTS
|
|
#include "conftest.h"
|
|
],[
|
|
trace_zfs_autoconf_event_one(1UL);
|
|
trace_zfs_autoconf_event_two(2UL);
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_DECLARE_EVENT_CLASS, 1,
|
|
[DECLARE_EVENT_CLASS() is available])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
],[
|
|
#if !defined(_CONFTEST_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _CONFTEST_H
|
|
|
|
#undef TRACE_SYSTEM
|
|
#define TRACE_SYSTEM zfs
|
|
#include <linux/tracepoint.h>
|
|
|
|
DECLARE_EVENT_CLASS(zfs_autoconf_event_class,
|
|
TP_PROTO(unsigned long i),
|
|
TP_ARGS(i),
|
|
TP_STRUCT__entry(
|
|
__field(unsigned long, i)
|
|
),
|
|
TP_fast_assign(
|
|
__entry->i = i;
|
|
),
|
|
TP_printk("i = %lu", __entry->i)
|
|
);
|
|
|
|
#define DEFINE_AUTOCONF_EVENT(name) \
|
|
DEFINE_EVENT(zfs_autoconf_event_class, name, \
|
|
TP_PROTO(unsigned long i), \
|
|
TP_ARGS(i))
|
|
DEFINE_AUTOCONF_EVENT(zfs_autoconf_event_one);
|
|
DEFINE_AUTOCONF_EVENT(zfs_autoconf_event_two);
|
|
|
|
#endif /* _CONFTEST_H */
|
|
|
|
#undef TRACE_INCLUDE_PATH
|
|
#define TRACE_INCLUDE_PATH .
|
|
#define TRACE_INCLUDE_FILE conftest
|
|
#include <trace/define_trace.h>
|
|
])
|
|
])
|