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Commit | Line | Data |
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47788c58 FW |
1 | #ifndef _TRACE_SYSCALL_H |
2 | #define _TRACE_SYSCALL_H | |
3 | ||
a871bd33 | 4 | #include <linux/tracepoint.h> |
fb34a08c JB |
5 | #include <linux/unistd.h> |
6 | #include <linux/ftrace_event.h> | |
a871bd33 | 7 | |
47788c58 FW |
8 | #include <asm/ptrace.h> |
9 | ||
a871bd33 | 10 | |
47788c58 FW |
11 | /* |
12 | * A syscall entry in the ftrace syscalls array. | |
13 | * | |
14 | * @name: name of the syscall | |
c252f657 | 15 | * @syscall_nr: number of the syscall |
47788c58 FW |
16 | * @nb_args: number of parameters it takes |
17 | * @types: list of types as strings | |
18 | * @args: list of args as strings (args[i] matches types[i]) | |
540b7b8d LZ |
19 | * @enter_event: associated syscall_enter trace event |
20 | * @exit_event: associated syscall_exit trace event | |
47788c58 FW |
21 | */ |
22 | struct syscall_metadata { | |
23 | const char *name; | |
c252f657 | 24 | int syscall_nr; |
47788c58 FW |
25 | int nb_args; |
26 | const char **types; | |
27 | const char **args; | |
2e33af02 | 28 | struct list_head enter_fields; |
540b7b8d LZ |
29 | |
30 | struct ftrace_event_call *enter_event; | |
31 | struct ftrace_event_call *exit_event; | |
47788c58 FW |
32 | }; |
33 | ||
34 | #ifdef CONFIG_FTRACE_SYSCALLS | |
c44fc770 | 35 | extern unsigned long arch_syscall_addr(int nr); |
a1301da0 | 36 | extern int init_syscall_trace(struct ftrace_event_call *call); |
bd1a5c84 | 37 | |
bd1a5c84 MH |
38 | extern int reg_event_syscall_enter(struct ftrace_event_call *call); |
39 | extern void unreg_event_syscall_enter(struct ftrace_event_call *call); | |
40 | extern int reg_event_syscall_exit(struct ftrace_event_call *call); | |
41 | extern void unreg_event_syscall_exit(struct ftrace_event_call *call); | |
42 | extern int | |
43 | ftrace_format_syscall(struct ftrace_event_call *call, struct trace_seq *s); | |
a9a57763 SR |
44 | enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags, |
45 | struct trace_event *event); | |
46 | enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags, | |
47 | struct trace_event *event); | |
f4b5ffcc | 48 | #endif |
07b139c8 LZ |
49 | |
50 | #ifdef CONFIG_PERF_EVENTS | |
97d5a220 FW |
51 | int perf_sysenter_enable(struct ftrace_event_call *call); |
52 | void perf_sysenter_disable(struct ftrace_event_call *call); | |
53 | int perf_sysexit_enable(struct ftrace_event_call *call); | |
54 | void perf_sysexit_disable(struct ftrace_event_call *call); | |
47788c58 FW |
55 | #endif |
56 | ||
57 | #endif /* _TRACE_SYSCALL_H */ |