projects / mirror_zfs.git / blame
| Commit | Line | Data |
|---|---|---|
| 0b39b9f9 PS |
1 | dnl # |
| 2 | dnl # Ensure the DECLARE_EVENT_CLASS macro is available to non-GPL modules. | |
| 3 | dnl # | |
| 4 | AC_DEFUN([ZFS_AC_KERNEL_DECLARE_EVENT_CLASS], [ | |
| 0b39b9f9 PS |
5 | AC_MSG_CHECKING([whether DECLARE_EVENT_CLASS() is available]) |
| 6 | ZFS_LINUX_TRY_COMPILE_HEADER([ | |
| 7 | #include <linux/module.h> | |
| 608f8749 | 8 | MODULE_LICENSE("$ZFS_META_LICENSE"); |
| 0b39b9f9 PS |
9 | |
| 10 | #define CREATE_TRACE_POINTS | |
| 11 | #include "conftest.h" | |
| 12 | ],[ | |
| 13 | trace_zfs_autoconf_event_one(1UL); | |
| 14 | trace_zfs_autoconf_event_two(2UL); | |
| 15 | ],[ | |
| 16 | AC_MSG_RESULT(yes) | |
| 17 | AC_DEFINE(HAVE_DECLARE_EVENT_CLASS, 1, | |
| 608f8749 | 18 | [DECLARE_EVENT_CLASS() is available]) |
| 0b39b9f9 PS |
19 | ],[ |
| 20 | AC_MSG_RESULT(no) | |
| 21 | ],[ | |
| 22 | #if !defined(_CONFTEST_H) || defined(TRACE_HEADER_MULTI_READ) | |
| 23 | #define _CONFTEST_H | |
| 24 | ||
| 25 | #undef TRACE_SYSTEM | |
| 26 | #define TRACE_SYSTEM zfs | |
| 27 | #include <linux/tracepoint.h> | |
| 28 | ||
| 29 | DECLARE_EVENT_CLASS(zfs_autoconf_event_class, | |
| 30 | TP_PROTO(unsigned long i), | |
| 31 | TP_ARGS(i), | |
| 32 | TP_STRUCT__entry( | |
| 33 | __field(unsigned long, i) | |
| 34 | ), | |
| 35 | TP_fast_assign( | |
| 36 | __entry->i = i; | |
| 37 | ), | |
| 38 | TP_printk("i = %lu", __entry->i) | |
| 39 | ); | |
| 40 | ||
| 41 | #define DEFINE_AUTOCONF_EVENT(name) \ | |
| 42 | DEFINE_EVENT(zfs_autoconf_event_class, name, \ | |
| 43 | TP_PROTO(unsigned long i), \ | |
| 44 | TP_ARGS(i)) | |
| 45 | DEFINE_AUTOCONF_EVENT(zfs_autoconf_event_one); | |
| 46 | DEFINE_AUTOCONF_EVENT(zfs_autoconf_event_two); | |
| 47 | ||
| 48 | #endif /* _CONFTEST_H */ | |
| 49 | ||
| 50 | #undef TRACE_INCLUDE_PATH | |
| 51 | #define TRACE_INCLUDE_PATH . | |
| 52 | #define TRACE_INCLUDE_FILE conftest | |
| 53 | #include <trace/define_trace.h> | |
| 54 | ]) | |
| 0b39b9f9 | 55 | ]) |