};
struct dyn_ftrace {
- struct list_head list;
- unsigned long ip; /* address of mcount call-site */
- unsigned long flags;
- struct dyn_arch_ftrace arch;
+ union {
+ unsigned long ip; /* address of mcount call-site */
+ struct dyn_ftrace *freelist;
+ };
+ union {
+ unsigned long flags;
+ struct dyn_ftrace *newlist;
+ };
+ struct dyn_arch_ftrace arch;
};
int ftrace_force_update(void);
*/
extern int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr);
-#ifdef CONFIG_TRACE_BPRINTK
-extern int trace_vbprintk(unsigned long ip, const char *fmt, va_list args);
-extern int __trace_bprintk(unsigned long ip, const char *fmt, ...)
- __attribute__ ((format (printf, 2, 3)));
-
-static inline void ____trace_bprintk_check_format(const char *fmt, ...)
- __attribute__ ((format (printf, 1, 2)));
-static inline void ____trace_bprintk_check_format(const char *fmt, ...) {}
-#define __trace_bprintk_check_format(fmt, args...) \
-do { \
- if (0) \
- ____trace_bprintk_check_format(fmt, ##args); \
-} while (0)
-
-#define trace_bprintk(fmt, args...) \
-do { \
- static char *__attribute__((section("__trace_bprintk_fmt"))) \
- trace_bprintk_fmt = fmt; \
- __trace_bprintk_check_format(fmt, ##args); \
- __trace_bprintk(_THIS_IP_, trace_bprintk_fmt, ##args); \
-} while (0)
-#else
-#define trace_bprintk trace_printk
-#endif
-
/* May be defined in arch */
extern int ftrace_arch_read_dyn_info(char *buf, int size);
extern void return_to_handler(void);
extern int
-ftrace_push_return_trace(unsigned long ret, unsigned long long time,
- unsigned long func, int *depth);
+ftrace_push_return_trace(unsigned long ret, unsigned long func, int *depth);
extern void
ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret);
#endif /* CONFIG_HW_BRANCH_TRACER */
+/*
+ * A syscall entry in the ftrace syscalls array.
+ *
+ * @name: name of the syscall
+ * @nb_args: number of parameters it takes
+ * @types: list of types as strings
+ * @args: list of args as strings (args[i] matches types[i])
+ */
+struct syscall_metadata {
+ const char *name;
+ int nb_args;
+ const char **types;
+ const char **args;
+};
+
+#ifdef CONFIG_FTRACE_SYSCALLS
+extern void arch_init_ftrace_syscalls(void);
+extern struct syscall_metadata *syscall_nr_to_meta(int nr);
+extern void start_ftrace_syscalls(void);
+extern void stop_ftrace_syscalls(void);
+extern void ftrace_syscall_enter(struct pt_regs *regs);
+extern void ftrace_syscall_exit(struct pt_regs *regs);
+#else
+static inline void start_ftrace_syscalls(void) { }
+static inline void stop_ftrace_syscalls(void) { }
+static inline void ftrace_syscall_enter(struct pt_regs *regs) { }
+static inline void ftrace_syscall_exit(struct pt_regs *regs) { }
+#endif
+
#endif /* _LINUX_FTRACE_H */