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-rw-r--r--include/linux/syscalls.h77
1 files changed, 14 insertions, 63 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index a990ace1a838..e79e2f3ccc51 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -99,37 +99,16 @@ struct perf_event_attr;
99#define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__) 99#define __SC_TEST6(t6, a6, ...) __SC_TEST(t6); __SC_TEST5(__VA_ARGS__)
100 100
101#ifdef CONFIG_EVENT_PROFILE 101#ifdef CONFIG_EVENT_PROFILE
102#define TRACE_SYS_ENTER_PROFILE(sname) \
103static int prof_sysenter_enable_##sname(void) \
104{ \
105 return reg_prof_syscall_enter("sys"#sname); \
106} \
107 \
108static void prof_sysenter_disable_##sname(void) \
109{ \
110 unreg_prof_syscall_enter("sys"#sname); \
111}
112
113#define TRACE_SYS_EXIT_PROFILE(sname) \
114static int prof_sysexit_enable_##sname(void) \
115{ \
116 return reg_prof_syscall_exit("sys"#sname); \
117} \
118 \
119static void prof_sysexit_disable_##sname(void) \
120{ \
121 unreg_prof_syscall_exit("sys"#sname); \
122}
123 102
124#define TRACE_SYS_ENTER_PROFILE_INIT(sname) \ 103#define TRACE_SYS_ENTER_PROFILE_INIT(sname) \
125 .profile_count = ATOMIC_INIT(-1), \ 104 .profile_count = ATOMIC_INIT(-1), \
126 .profile_enable = prof_sysenter_enable_##sname, \ 105 .profile_enable = prof_sysenter_enable, \
127 .profile_disable = prof_sysenter_disable_##sname, 106 .profile_disable = prof_sysenter_disable,
128 107
129#define TRACE_SYS_EXIT_PROFILE_INIT(sname) \ 108#define TRACE_SYS_EXIT_PROFILE_INIT(sname) \
130 .profile_count = ATOMIC_INIT(-1), \ 109 .profile_count = ATOMIC_INIT(-1), \
131 .profile_enable = prof_sysexit_enable_##sname, \ 110 .profile_enable = prof_sysexit_enable, \
132 .profile_disable = prof_sysexit_disable_##sname, 111 .profile_disable = prof_sysexit_disable,
133#else 112#else
134#define TRACE_SYS_ENTER_PROFILE(sname) 113#define TRACE_SYS_ENTER_PROFILE(sname)
135#define TRACE_SYS_ENTER_PROFILE_INIT(sname) 114#define TRACE_SYS_ENTER_PROFILE_INIT(sname)
@@ -153,74 +132,46 @@ static void prof_sysexit_disable_##sname(void) \
153#define __SC_STR_TDECL6(t, a, ...) #t, __SC_STR_TDECL5(__VA_ARGS__) 132#define __SC_STR_TDECL6(t, a, ...) #t, __SC_STR_TDECL5(__VA_ARGS__)
154 133
155#define SYSCALL_TRACE_ENTER_EVENT(sname) \ 134#define SYSCALL_TRACE_ENTER_EVENT(sname) \
135 static const struct syscall_metadata __syscall_meta_##sname; \
156 static struct ftrace_event_call event_enter_##sname; \ 136 static struct ftrace_event_call event_enter_##sname; \
157 struct trace_event enter_syscall_print_##sname = { \ 137 static struct trace_event enter_syscall_print_##sname = { \
158 .trace = print_syscall_enter, \ 138 .trace = print_syscall_enter, \
159 }; \ 139 }; \
160 static int init_enter_##sname(void) \
161 { \
162 int num, id; \
163 num = syscall_name_to_nr("sys"#sname); \
164 if (num < 0) \
165 return -ENOSYS; \
166 id = register_ftrace_event(&enter_syscall_print_##sname);\
167 if (!id) \
168 return -ENODEV; \
169 event_enter_##sname.id = id; \
170 set_syscall_enter_id(num, id); \
171 INIT_LIST_HEAD(&event_enter_##sname.fields); \
172 return 0; \
173 } \
174 TRACE_SYS_ENTER_PROFILE(sname); \
175 static struct ftrace_event_call __used \ 140 static struct ftrace_event_call __used \
176 __attribute__((__aligned__(4))) \ 141 __attribute__((__aligned__(4))) \
177 __attribute__((section("_ftrace_events"))) \ 142 __attribute__((section("_ftrace_events"))) \
178 event_enter_##sname = { \ 143 event_enter_##sname = { \
179 .name = "sys_enter"#sname, \ 144 .name = "sys_enter"#sname, \
180 .system = "syscalls", \ 145 .system = "syscalls", \
181 .event = &event_syscall_enter, \ 146 .event = &enter_syscall_print_##sname, \
182 .raw_init = init_enter_##sname, \ 147 .raw_init = init_syscall_trace, \
183 .show_format = syscall_enter_format, \ 148 .show_format = syscall_enter_format, \
184 .define_fields = syscall_enter_define_fields, \ 149 .define_fields = syscall_enter_define_fields, \
185 .regfunc = reg_event_syscall_enter, \ 150 .regfunc = reg_event_syscall_enter, \
186 .unregfunc = unreg_event_syscall_enter, \ 151 .unregfunc = unreg_event_syscall_enter, \
187 .data = "sys"#sname, \ 152 .data = (void *)&__syscall_meta_##sname,\
188 TRACE_SYS_ENTER_PROFILE_INIT(sname) \ 153 TRACE_SYS_ENTER_PROFILE_INIT(sname) \
189 } 154 }
190 155
191#define SYSCALL_TRACE_EXIT_EVENT(sname) \ 156#define SYSCALL_TRACE_EXIT_EVENT(sname) \
157 static const struct syscall_metadata __syscall_meta_##sname; \
192 static struct ftrace_event_call event_exit_##sname; \ 158 static struct ftrace_event_call event_exit_##sname; \
193 struct trace_event exit_syscall_print_##sname = { \ 159 static struct trace_event exit_syscall_print_##sname = { \
194 .trace = print_syscall_exit, \ 160 .trace = print_syscall_exit, \
195 }; \ 161 }; \
196 static int init_exit_##sname(void) \
197 { \
198 int num, id; \
199 num = syscall_name_to_nr("sys"#sname); \
200 if (num < 0) \
201 return -ENOSYS; \
202 id = register_ftrace_event(&exit_syscall_print_##sname);\
203 if (!id) \
204 return -ENODEV; \
205 event_exit_##sname.id = id; \
206 set_syscall_exit_id(num, id); \
207 INIT_LIST_HEAD(&event_exit_##sname.fields); \
208 return 0; \
209 } \
210 TRACE_SYS_EXIT_PROFILE(sname); \
211 static struct ftrace_event_call __used \ 162 static struct ftrace_event_call __used \
212 __attribute__((__aligned__(4))) \ 163 __attribute__((__aligned__(4))) \
213 __attribute__((section("_ftrace_events"))) \ 164 __attribute__((section("_ftrace_events"))) \
214 event_exit_##sname = { \ 165 event_exit_##sname = { \
215 .name = "sys_exit"#sname, \ 166 .name = "sys_exit"#sname, \
216 .system = "syscalls", \ 167 .system = "syscalls", \
217 .event = &event_syscall_exit, \ 168 .event = &exit_syscall_print_##sname, \
218 .raw_init = init_exit_##sname, \ 169 .raw_init = init_syscall_trace, \
219 .show_format = syscall_exit_format, \ 170 .show_format = syscall_exit_format, \
220 .define_fields = syscall_exit_define_fields, \ 171 .define_fields = syscall_exit_define_fields, \
221 .regfunc = reg_event_syscall_exit, \ 172 .regfunc = reg_event_syscall_exit, \
222 .unregfunc = unreg_event_syscall_exit, \ 173 .unregfunc = unreg_event_syscall_exit, \
223 .data = "sys"#sname, \ 174 .data = (void *)&__syscall_meta_##sname,\
224 TRACE_SYS_EXIT_PROFILE_INIT(sname) \ 175 TRACE_SYS_EXIT_PROFILE_INIT(sname) \
225 } 176 }
226 177
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 20:13:07 -0500