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-rw-r--r--include/linux/syscalls.h57
1 files changed, 17 insertions, 40 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 057929b0a651..a1a86a53bc73 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -103,22 +103,6 @@ struct perf_event_attr;
103#define __SC_TEST5(t5, a5, ...) __SC_TEST(t5); __SC_TEST4(__VA_ARGS__) 103#define __SC_TEST5(t5, a5, ...) __SC_TEST(t5); __SC_TEST4(__VA_ARGS__)
104#define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__) 104#define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__)
105 105
106#ifdef CONFIG_PERF_EVENTS
107
108#define TRACE_SYS_ENTER_PERF_INIT(sname) \
109 .perf_event_enable = perf_sysenter_enable, \
110 .perf_event_disable = perf_sysenter_disable,
111
112#define TRACE_SYS_EXIT_PERF_INIT(sname) \
113 .perf_event_enable = perf_sysexit_enable, \
114 .perf_event_disable = perf_sysexit_disable,
115#else
116#define TRACE_SYS_ENTER_PERF(sname)
117#define TRACE_SYS_ENTER_PERF_INIT(sname)
118#define TRACE_SYS_EXIT_PERF(sname)
119#define TRACE_SYS_EXIT_PERF_INIT(sname)
120#endif /* CONFIG_PERF_EVENTS */
121
122#ifdef CONFIG_FTRACE_SYSCALLS 106#ifdef CONFIG_FTRACE_SYSCALLS
123#define __SC_STR_ADECL1(t, a) #a 107#define __SC_STR_ADECL1(t, a) #a
124#define __SC_STR_ADECL2(t, a, ...) #a, __SC_STR_ADECL1(__VA_ARGS__) 108#define __SC_STR_ADECL2(t, a, ...) #a, __SC_STR_ADECL1(__VA_ARGS__)
@@ -134,54 +118,43 @@ struct perf_event_attr;
134#define __SC_STR_TDECL5(t, a, ...) #t, __SC_STR_TDECL4(__VA_ARGS__) 118#define __SC_STR_TDECL5(t, a, ...) #t, __SC_STR_TDECL4(__VA_ARGS__)
135#define __SC_STR_TDECL6(t, a, ...) #t, __SC_STR_TDECL5(__VA_ARGS__) 119#define __SC_STR_TDECL6(t, a, ...) #t, __SC_STR_TDECL5(__VA_ARGS__)
136 120
121extern struct ftrace_event_class event_class_syscall_enter;
122extern struct ftrace_event_class event_class_syscall_exit;
123extern struct trace_event_functions enter_syscall_print_funcs;
124extern struct trace_event_functions exit_syscall_print_funcs;
125
137#define SYSCALL_TRACE_ENTER_EVENT(sname) \ 126#define SYSCALL_TRACE_ENTER_EVENT(sname) \
138 static const struct syscall_metadata __syscall_meta_##sname; \ 127 static struct syscall_metadata __syscall_meta_##sname; \
139 static struct ftrace_event_call \ 128 static struct ftrace_event_call \
140 __attribute__((__aligned__(4))) event_enter_##sname; \ 129 __attribute__((__aligned__(4))) event_enter_##sname; \
141 static struct trace_event enter_syscall_print_##sname = { \
142 .trace = print_syscall_enter, \
143 }; \
144 static struct ftrace_event_call __used \ 130 static struct ftrace_event_call __used \
145 __attribute__((__aligned__(4))) \ 131 __attribute__((__aligned__(4))) \
146 __attribute__((section("_ftrace_events"))) \ 132 __attribute__((section("_ftrace_events"))) \
147 event_enter_##sname = { \ 133 event_enter_##sname = { \
148 .name = "sys_enter"#sname, \ 134 .name = "sys_enter"#sname, \
149 .system = "syscalls", \ 135 .class = &event_class_syscall_enter, \
150 .event = &enter_syscall_print_##sname, \ 136 .event.funcs = &enter_syscall_print_funcs, \
151 .raw_init = init_syscall_trace, \
152 .define_fields = syscall_enter_define_fields, \
153 .regfunc = reg_event_syscall_enter, \
154 .unregfunc = unreg_event_syscall_enter, \
155 .data = (void *)&__syscall_meta_##sname,\ 137 .data = (void *)&__syscall_meta_##sname,\
156 TRACE_SYS_ENTER_PERF_INIT(sname) \
157 } 138 }
158 139
159#define SYSCALL_TRACE_EXIT_EVENT(sname) \ 140#define SYSCALL_TRACE_EXIT_EVENT(sname) \
160 static const struct syscall_metadata __syscall_meta_##sname; \ 141 static struct syscall_metadata __syscall_meta_##sname; \
161 static struct ftrace_event_call \ 142 static struct ftrace_event_call \
162 __attribute__((__aligned__(4))) event_exit_##sname; \ 143 __attribute__((__aligned__(4))) event_exit_##sname; \
163 static struct trace_event exit_syscall_print_##sname = { \
164 .trace = print_syscall_exit, \
165 }; \
166 static struct ftrace_event_call __used \ 144 static struct ftrace_event_call __used \
167 __attribute__((__aligned__(4))) \ 145 __attribute__((__aligned__(4))) \
168 __attribute__((section("_ftrace_events"))) \ 146 __attribute__((section("_ftrace_events"))) \
169 event_exit_##sname = { \ 147 event_exit_##sname = { \
170 .name = "sys_exit"#sname, \ 148 .name = "sys_exit"#sname, \
171 .system = "syscalls", \ 149 .class = &event_class_syscall_exit, \
172 .event = &exit_syscall_print_##sname, \ 150 .event.funcs = &exit_syscall_print_funcs, \
173 .raw_init = init_syscall_trace, \
174 .define_fields = syscall_exit_define_fields, \
175 .regfunc = reg_event_syscall_exit, \
176 .unregfunc = unreg_event_syscall_exit, \
177 .data = (void *)&__syscall_meta_##sname,\ 151 .data = (void *)&__syscall_meta_##sname,\
178 TRACE_SYS_EXIT_PERF_INIT(sname) \
179 } 152 }
180 153
181#define SYSCALL_METADATA(sname, nb) \ 154#define SYSCALL_METADATA(sname, nb) \
182 SYSCALL_TRACE_ENTER_EVENT(sname); \ 155 SYSCALL_TRACE_ENTER_EVENT(sname); \
183 SYSCALL_TRACE_EXIT_EVENT(sname); \ 156 SYSCALL_TRACE_EXIT_EVENT(sname); \
184 static const struct syscall_metadata __used \ 157 static struct syscall_metadata __used \
185 __attribute__((__aligned__(4))) \ 158 __attribute__((__aligned__(4))) \
186 __attribute__((section("__syscalls_metadata"))) \ 159 __attribute__((section("__syscalls_metadata"))) \
187 __syscall_meta_##sname = { \ 160 __syscall_meta_##sname = { \
@@ -191,12 +164,14 @@ struct perf_event_attr;
191 .args = args_##sname, \ 164 .args = args_##sname, \
192 .enter_event = &event_enter_##sname, \ 165 .enter_event = &event_enter_##sname, \
193 .exit_event = &event_exit_##sname, \ 166 .exit_event = &event_exit_##sname, \
167 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
168 .exit_fields = LIST_HEAD_INIT(__syscall_meta_##sname.exit_fields), \
194 }; 169 };
195 170
196#define SYSCALL_DEFINE0(sname) \ 171#define SYSCALL_DEFINE0(sname) \
197 SYSCALL_TRACE_ENTER_EVENT(_##sname); \ 172 SYSCALL_TRACE_ENTER_EVENT(_##sname); \
198 SYSCALL_TRACE_EXIT_EVENT(_##sname); \ 173 SYSCALL_TRACE_EXIT_EVENT(_##sname); \
199 static const struct syscall_metadata __used \ 174 static struct syscall_metadata __used \
200 __attribute__((__aligned__(4))) \ 175 __attribute__((__aligned__(4))) \
201 __attribute__((section("__syscalls_metadata"))) \ 176 __attribute__((section("__syscalls_metadata"))) \
202 __syscall_meta__##sname = { \ 177 __syscall_meta__##sname = { \
@@ -204,6 +179,8 @@ struct perf_event_attr;
204 .nb_args = 0, \ 179 .nb_args = 0, \
205 .enter_event = &event_enter__##sname, \ 180 .enter_event = &event_enter__##sname, \
206 .exit_event = &event_exit__##sname, \ 181 .exit_event = &event_exit__##sname, \
182 .enter_fields = LIST_HEAD_INIT(__syscall_meta__##sname.enter_fields), \
183 .exit_fields = LIST_HEAD_INIT(__syscall_meta__##sname.exit_fields), \
207 }; \ 184 }; \
208 asmlinkage long sys_##sname(void) 185 asmlinkage long sys_##sname(void)
209#else 186#else
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-06 05:27:06 -0500