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-rw-r--r--include/trace/ftrace.h158
1 files changed, 81 insertions, 77 deletions
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 40ede4db4d88..1867553c61e5 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -81,6 +81,87 @@
81#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 81#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
82 82
83/* 83/*
84 * Setup the showing format of trace point.
85 *
86 * int
87 * ftrace_format_##call(struct trace_seq *s)
88 * {
89 * struct ftrace_raw_##call field;
90 * int ret;
91 *
92 * ret = trace_seq_printf(s, #type " " #item ";"
93 * " offset:%u; size:%u;\n",
94 * offsetof(struct ftrace_raw_##call, item),
95 * sizeof(field.type));
96 *
97 * }
98 */
99
100#undef TP_STRUCT__entry
101#define TP_STRUCT__entry(args...) args
102
103#undef __field
104#define __field(type, item) \
105 ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
106 "offset:%u;\tsize:%u;\n", \
107 (unsigned int)offsetof(typeof(field), item), \
108 (unsigned int)sizeof(field.item)); \
109 if (!ret) \
110 return 0;
111
112#undef __array
113#define __array(type, item, len) \
114 ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
115 "offset:%u;\tsize:%u;\n", \
116 (unsigned int)offsetof(typeof(field), item), \
117 (unsigned int)sizeof(field.item)); \
118 if (!ret) \
119 return 0;
120
121#undef __dynamic_array
122#define __dynamic_array(type, item, len) \
123 ret = trace_seq_printf(s, "\tfield:__data_loc " #item ";\t" \
124 "offset:%u;\tsize:%u;\n", \
125 (unsigned int)offsetof(typeof(field), \
126 __data_loc_##item), \
127 (unsigned int)sizeof(field.__data_loc_##item)); \
128 if (!ret) \
129 return 0;
130
131#undef __string
132#define __string(item, src) __dynamic_array(char, item, -1)
133
134#undef __entry
135#define __entry REC
136
137#undef __print_symbolic
138#undef __get_dynamic_array
139#undef __get_str
140
141#undef TP_printk
142#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)
143
144#undef TP_fast_assign
145#define TP_fast_assign(args...) args
146
147#undef TRACE_EVENT
148#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
149static int \
150ftrace_format_##call(struct trace_seq *s) \
151{ \
152 struct ftrace_raw_##call field __attribute__((unused)); \
153 int ret = 0; \
154 \
155 tstruct; \
156 \
157 trace_seq_printf(s, "\nprint fmt: " print); \
158 \
159 return ret; \
160}
161
162#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
163
164/*
84 * Stage 3 of the trace events. 165 * Stage 3 of the trace events.
85 * 166 *
86 * Override the macros in <trace/trace_events.h> to include the following: 167 * Override the macros in <trace/trace_events.h> to include the following:
@@ -179,83 +260,6 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
179 260
180#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) 261#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
181 262
182/*
183 * Setup the showing format of trace point.
184 *
185 * int
186 * ftrace_format_##call(struct trace_seq *s)
187 * {
188 * struct ftrace_raw_##call field;
189 * int ret;
190 *
191 * ret = trace_seq_printf(s, #type " " #item ";"
192 * " offset:%u; size:%u;\n",
193 * offsetof(struct ftrace_raw_##call, item),
194 * sizeof(field.type));
195 *
196 * }
197 */
198
199#undef TP_STRUCT__entry
200#define TP_STRUCT__entry(args...) args
201
202#undef __field
203#define __field(type, item) \
204 ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
205 "offset:%u;\tsize:%u;\n", \
206 (unsigned int)offsetof(typeof(field), item), \
207 (unsigned int)sizeof(field.item)); \
208 if (!ret) \
209 return 0;
210
211#undef __array
212#define __array(type, item, len) \
213 ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
214 "offset:%u;\tsize:%u;\n", \
215 (unsigned int)offsetof(typeof(field), item), \
216 (unsigned int)sizeof(field.item)); \
217 if (!ret) \
218 return 0;
219
220#undef __dynamic_array
221#define __dynamic_array(type, item, len) \
222 ret = trace_seq_printf(s, "\tfield:__data_loc " #item ";\t" \
223 "offset:%u;\tsize:%u;\n", \
224 (unsigned int)offsetof(typeof(field), \
225 __data_loc_##item), \
226 (unsigned int)sizeof(field.__data_loc_##item)); \
227 if (!ret) \
228 return 0;
229
230#undef __string
231#define __string(item, src) __dynamic_array(char, item, -1)
232
233#undef __entry
234#define __entry REC
235
236#undef TP_printk
237#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)
238
239#undef TP_fast_assign
240#define TP_fast_assign(args...) args
241
242#undef TRACE_EVENT
243#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
244static int \
245ftrace_format_##call(struct trace_seq *s) \
246{ \
247 struct ftrace_raw_##call field __attribute__((unused)); \
248 int ret = 0; \
249 \
250 tstruct; \
251 \
252 trace_seq_printf(s, "\nprint fmt: " print); \
253 \
254 return ret; \
255}
256
257#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
258
259#undef __field 263#undef __field
260#define __field(type, item) \ 264#define __field(type, item) \
261 ret = trace_define_field(event_call, #type, #item, \ 265 ret = trace_define_field(event_call, #type, #item, \
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-30 12:22:47 -0500