TRACE_WAKE,
TRACE_STACK,
TRACE_PRINT,
+ TRACE_BPRINT,
TRACE_SPECIAL,
TRACE_MMIO_RW,
TRACE_MMIO_MAP,
TRACE_GRAPH_ENT,
TRACE_USER_STACK,
TRACE_HW_BRANCHES,
+ TRACE_SYSCALL_ENTER,
+ TRACE_SYSCALL_EXIT,
TRACE_KMEM_ALLOC,
TRACE_KMEM_FREE,
TRACE_POWER,
/*
* trace_printk entry:
*/
-struct print_entry {
+struct bprint_entry {
struct trace_entry ent;
- unsigned long ip;
- int depth;
+ unsigned long ip;
const char *fmt;
- u32 buf[];
+ u32 buf[];
+};
+
+struct print_entry {
+ struct trace_entry ent;
+ unsigned long ip;
+ char buf[];
};
-#ifdef CONFIG_TRACE_BPRINTK
-extern int trace_bprintk_enable;
-#endif
#define TRACE_OLD_SIZE 88
struct power_trace state_data;
};
+enum kmemtrace_type_id {
+ KMEMTRACE_TYPE_KMALLOC = 0, /* kmalloc() or kfree(). */
+ KMEMTRACE_TYPE_CACHE, /* kmem_cache_*(). */
+ KMEMTRACE_TYPE_PAGES, /* __get_free_pages() and friends. */
+};
+
struct kmemtrace_alloc_entry {
struct trace_entry ent;
enum kmemtrace_type_id type_id;
const void *ptr;
};
+struct syscall_trace_enter {
+ struct trace_entry ent;
+ int nr;
+ unsigned long args[];
+};
+
+struct syscall_trace_exit {
+ struct trace_entry ent;
+ int nr;
+ unsigned long ret;
+};
+
+
/*
* trace_flag_type is an enumeration that holds different
* states when a trace occurs. These are:
* IRQS_OFF - interrupts were disabled
- * IRQS_NOSUPPORT - arch does not support irqs_disabled_flags
+ * IRQS_NOSUPPORT - arch does not support irqs_disabled_flags
* NEED_RESCED - reschedule is requested
* HARDIRQ - inside an interrupt handler
* SOFTIRQ - inside a softirq handler
IF_ASSIGN(var, ent, struct stack_entry, TRACE_STACK); \
IF_ASSIGN(var, ent, struct userstack_entry, TRACE_USER_STACK);\
IF_ASSIGN(var, ent, struct print_entry, TRACE_PRINT); \
+ IF_ASSIGN(var, ent, struct bprint_entry, TRACE_BPRINT); \
IF_ASSIGN(var, ent, struct special_entry, 0); \
IF_ASSIGN(var, ent, struct trace_mmiotrace_rw, \
TRACE_MMIO_RW); \
IF_ASSIGN(var, ent, struct ftrace_graph_ret_entry, \
TRACE_GRAPH_RET); \
IF_ASSIGN(var, ent, struct hw_branch_entry, TRACE_HW_BRANCHES);\
- IF_ASSIGN(var, ent, struct trace_power, TRACE_POWER); \
+ IF_ASSIGN(var, ent, struct trace_power, TRACE_POWER); \
IF_ASSIGN(var, ent, struct kmemtrace_alloc_entry, \
TRACE_KMEM_ALLOC); \
IF_ASSIGN(var, ent, struct kmemtrace_free_entry, \
TRACE_KMEM_FREE); \
+ IF_ASSIGN(var, ent, struct syscall_trace_enter, \
+ TRACE_SYSCALL_ENTER); \
+ IF_ASSIGN(var, ent, struct syscall_trace_exit, \
+ TRACE_SYSCALL_EXIT); \
__ftrace_bad_type(); \
} while (0)
* flags value in struct tracer_flags.
*/
struct tracer_opt {
- const char *name; /* Will appear on the trace_options file */
- u32 bit; /* Mask assigned in val field in tracer_flags */
+ const char *name; /* Will appear on the trace_options file */
+ u32 bit; /* Mask assigned in val field in tracer_flags */
};
/*
*/
struct tracer_flags {
u32 val;
- struct tracer_opt *opts;
+ struct tracer_opt *opts;
};
/* Makes more easy to define a tracer opt */
int (*set_flag)(u32 old_flags, u32 bit, int set);
struct tracer *next;
int print_max;
- struct tracer_flags *flags;
+ struct tracer_flags *flags;
struct tracer_stat *stats;
};
unsigned long flags, int pc);
void trace_current_buffer_unlock_commit(struct ring_buffer_event *event,
unsigned long flags, int pc);
+void trace_nowake_buffer_unlock_commit(struct ring_buffer_event *event,
+ unsigned long flags, int pc);
struct trace_entry *tracing_get_trace_entry(struct trace_array *tr,
struct trace_array_cpu *data);
};
#endif /* CONFIG_CONTEXT_SWITCH_TRACER */
-extern char *trace_find_cmdline(int pid);
+extern void trace_find_cmdline(int pid, char comm[]);
#ifdef CONFIG_DYNAMIC_FTRACE
extern unsigned long ftrace_update_tot_cnt;
struct trace_array *tr);
extern int trace_selftest_startup_branch(struct tracer *trace,
struct trace_array *tr);
+extern int trace_selftest_startup_hw_branches(struct tracer *trace,
+ struct trace_array *tr);
#endif /* CONFIG_FTRACE_STARTUP_TEST */
extern void *head_page(struct trace_array_cpu *data);
extern long ns2usecs(cycle_t nsec);
extern int
-trace_vprintk(unsigned long ip, int depth, const char *fmt, va_list args);
+trace_vbprintk(unsigned long ip, const char *fmt, va_list args);
+extern int
+trace_vprintk(unsigned long ip, const char *fmt, va_list args);
extern unsigned long trace_flags;
TRACE_ITER_PRINTK_MSGONLY = 0x10000,
TRACE_ITER_CONTEXT_INFO = 0x20000, /* Print pid/cpu/time */
TRACE_ITER_LATENCY_FMT = 0x40000,
+ TRACE_ITER_GLOBAL_CLK = 0x80000,
+ TRACE_ITER_SLEEP_TIME = 0x100000,
};
/*
}
#endif /* CONFIG_BRANCH_TRACER */
+/* set ring buffers to default size if not already done so */
+int tracing_update_buffers(void);
+
/* trace event type bit fields, not numeric */
enum {
TRACE_EVENT_TYPE_PRINTF = 1,
TRACE_EVENT_TYPE_RAW = 2,
};
+struct ftrace_event_field {
+ struct list_head link;
+ char *name;
+ char *type;
+ int offset;
+ int size;
+};
+
struct ftrace_event_call {
- char *name;
- char *system;
- struct dentry *dir;
- int enabled;
- int (*regfunc)(void);
- void (*unregfunc)(void);
- int id;
- struct dentry *raw_dir;
- int raw_enabled;
- int type;
- int (*raw_init)(void);
- int (*raw_reg)(void);
- void (*raw_unreg)(void);
- int (*show_format)(struct trace_seq *s);
+ char *name;
+ char *system;
+ struct dentry *dir;
+ int enabled;
+ int (*regfunc)(void);
+ void (*unregfunc)(void);
+ int id;
+ int (*raw_init)(void);
+ int (*show_format)(struct trace_seq *s);
+ int (*define_fields)(void);
+ struct list_head fields;
+ struct filter_pred **preds;
+
+#ifdef CONFIG_EVENT_PROFILE
+ atomic_t profile_count;
+ int (*profile_enable)(struct ftrace_event_call *);
+ void (*profile_disable)(struct ftrace_event_call *);
+#endif
};
+struct event_subsystem {
+ struct list_head list;
+ const char *name;
+ struct dentry *entry;
+ struct filter_pred **preds;
+};
+
+#define events_for_each(event) \
+ for (event = __start_ftrace_events; \
+ (unsigned long)event < (unsigned long)__stop_ftrace_events; \
+ event++)
+
+#define MAX_FILTER_PRED 8
+
+struct filter_pred;
+
+typedef int (*filter_pred_fn_t) (struct filter_pred *pred, void *event);
+
+struct filter_pred {
+ filter_pred_fn_t fn;
+ u64 val;
+ char *str_val;
+ int str_len;
+ char *field_name;
+ int offset;
+ int not;
+ int or;
+ int compound;
+ int clear;
+};
+
+int trace_define_field(struct ftrace_event_call *call, char *type,
+ char *name, int offset, int size);
+extern void filter_free_pred(struct filter_pred *pred);
+extern void filter_print_preds(struct filter_pred **preds,
+ struct trace_seq *s);
+extern int filter_parse(char **pbuf, struct filter_pred *pred);
+extern int filter_add_pred(struct ftrace_event_call *call,
+ struct filter_pred *pred);
+extern void filter_free_preds(struct ftrace_event_call *call);
+extern int filter_match_preds(struct ftrace_event_call *call, void *rec);
+extern void filter_free_subsystem_preds(struct event_subsystem *system);
+extern int filter_add_subsystem_pred(struct event_subsystem *system,
+ struct filter_pred *pred);
+
void event_trace_printk(unsigned long ip, const char *fmt, ...);
extern struct ftrace_event_call __start_ftrace_events[];
extern struct ftrace_event_call __stop_ftrace_events[];
+#define for_each_event(event) \
+ for (event = __start_ftrace_events; \
+ (unsigned long)event < (unsigned long)__stop_ftrace_events; \
+ event++)
+
+extern const char *__start___trace_bprintk_fmt[];
+extern const char *__stop___trace_bprintk_fmt[];
+
+/*
+ * The double __builtin_constant_p is because gcc will give us an error
+ * if we try to allocate the static variable to fmt if it is not a
+ * constant. Even with the outer if statement optimizing out.
+ */
+#define event_trace_printk(ip, fmt, args...) \
+do { \
+ __trace_printk_check_format(fmt, ##args); \
+ tracing_record_cmdline(current); \
+ if (__builtin_constant_p(fmt)) { \
+ static const char *trace_printk_fmt \
+ __attribute__((section("__trace_printk_fmt"))) = \
+ __builtin_constant_p(fmt) ? fmt : NULL; \
+ \
+ __trace_bprintk(ip, trace_printk_fmt, ##args); \
+ } else \
+ __trace_printk(ip, fmt, ##args); \
+} while (0)
+
#endif /* _LINUX_KERNEL_TRACE_H */