stage6_event_callback.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2
  3/* Stage 6 definitions for creating trace events */
  4
  5/* Reuse some of the stage 3 macros */
  6#include "stage3_trace_output.h"
  7
  8#undef __entry
  9#define __entry entry
 10
 11#undef __field
 12#define __field(type, item)
 13
 14#undef __field_struct
 15#define __field_struct(type, item)
 16
 17#undef __array
 18#define __array(type, item, len)
 19
 20#undef __dynamic_array
 21#define __dynamic_array(type, item, len)				\
 22	__entry->__data_loc_##item = __data_offsets.item;
 23
 24#undef __string
 25#define __string(item, src) __dynamic_array(char, item, -1)
 26
 27#undef __string_len
 28#define __string_len(item, src, len) __dynamic_array(char, item, -1)
 29
 30#undef __vstring
 31#define __vstring(item, fmt, ap) __dynamic_array(char, item, -1)
 32
 33#undef __assign_str
 34#define __assign_str(dst)						\
 35	do {								\
 36		char *__str__ = __get_str(dst);				\
 37		int __len__ = __get_dynamic_array_len(dst) - 1;		\
 38		memcpy(__str__, __data_offsets.dst##_ptr_ ? :		\
 39		       EVENT_NULL_STR, __len__);			\
 40		__str__[__len__] = '\0';				\
 41	} while (0)
 42
 43#undef __assign_vstr
 44#define __assign_vstr(dst, fmt, va)					\
 45	do {								\
 46		va_list __cp_va;					\
 47		va_copy(__cp_va, *(va));				\
 48		vsnprintf(__get_str(dst), TRACE_EVENT_STR_MAX, fmt, __cp_va); \
 49		va_end(__cp_va);					\
 50	} while (0)
 51
 52#undef __bitmask
 53#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
 54
 55#undef __get_bitmask
 56#define __get_bitmask(field) (char *)__get_dynamic_array(field)
 57
 58#undef __assign_bitmask
 59#define __assign_bitmask(dst, src, nr_bits)					\
 60	memcpy(__get_bitmask(dst), (src), __bitmask_size_in_bytes(nr_bits))
 61
 62#undef __cpumask
 63#define __cpumask(item) __dynamic_array(unsigned long, item, -1)
 64
 65#undef __get_cpumask
 66#define __get_cpumask(field) (char *)__get_dynamic_array(field)
 67
 68#undef __assign_cpumask
 69#define __assign_cpumask(dst, src)					\
 70	memcpy(__get_cpumask(dst), (src), __bitmask_size_in_bytes(nr_cpumask_bits))
 71
 72#undef __sockaddr
 73#define __sockaddr(field, len) __dynamic_array(u8, field, len)
 74
 75#undef __get_sockaddr
 76#define __get_sockaddr(field)	((struct sockaddr *)__get_dynamic_array(field))
 77
 78#undef __assign_sockaddr
 79#define __assign_sockaddr(dest, src, len)					\
 80	memcpy(__get_dynamic_array(dest), src, len)
 81
 82#undef __rel_dynamic_array
 83#define __rel_dynamic_array(type, item, len)				\
 84	__entry->__rel_loc_##item = __data_offsets.item;
 85
 86#undef __rel_string
 87#define __rel_string(item, src) __rel_dynamic_array(char, item, -1)
 88
 89#undef __rel_string_len
 90#define __rel_string_len(item, src, len) __rel_dynamic_array(char, item, -1)
 91
 92#undef __assign_rel_str
 93#define __assign_rel_str(dst)						\
 94	do {								\
 95		char *__str__ = __get_rel_str(dst);			\
 96		int __len__ = __get_rel_dynamic_array_len(dst) - 1;	\
 97		memcpy(__str__, __data_offsets.dst##_ptr_ ? :		\
 98		       EVENT_NULL_STR, __len__);			\
 99		__str__[__len__] = '\0';				\
100	} while (0)
101
102#undef __rel_bitmask
103#define __rel_bitmask(item, nr_bits) __rel_dynamic_array(unsigned long, item, -1)
104
105#undef __get_rel_bitmask
106#define __get_rel_bitmask(field) (char *)__get_rel_dynamic_array(field)
107
108#undef __assign_rel_bitmask
109#define __assign_rel_bitmask(dst, src, nr_bits)					\
110	memcpy(__get_rel_bitmask(dst), (src), __bitmask_size_in_bytes(nr_bits))
111
112#undef __rel_cpumask
113#define __rel_cpumask(item) __rel_dynamic_array(unsigned long, item, -1)
114
115#undef __get_rel_cpumask
116#define __get_rel_cpumask(field) (char *)__get_rel_dynamic_array(field)
117
118#undef __assign_rel_cpumask
119#define __assign_rel_cpumask(dst, src)					\
120	memcpy(__get_rel_cpumask(dst), (src), __bitmask_size_in_bytes(nr_cpumask_bits))
121
122#undef __rel_sockaddr
123#define __rel_sockaddr(field, len) __rel_dynamic_array(u8, field, len)
124
125#undef __get_rel_sockaddr
126#define __get_rel_sockaddr(field)	((struct sockaddr *)__get_rel_dynamic_array(field))
127
128#undef __assign_rel_sockaddr
129#define __assign_rel_sockaddr(dest, src, len)					\
130	memcpy(__get_rel_dynamic_array(dest), src, len)
131
132#undef TP_fast_assign
133#define TP_fast_assign(args...) args
134
135#undef __perf_count
136#define __perf_count(c)	(c)
137
138#undef __perf_task
139#define __perf_task(t)	(t)