#include <linux/mmiotrace.h>
#include <linux/ftrace.h>
#include <trace/boot.h>
-#include <trace/kmemtrace.h>
+#include <linux/kmemtrace.h>
#include <trace/power.h>
+#include <linux/trace_seq.h>
+#include <linux/ftrace_event.h>
+
enum trace_type {
__TRACE_FIRST_TYPE = 0,
};
/*
- * The trace entry - the most basic unit of tracing. This is what
- * is printed in the end as a single line in the trace output, such as:
- *
- * bash-15816 [01] 235.197585: idle_cpu <- irq_enter
- */
-struct trace_entry {
- unsigned char type;
- unsigned char flags;
- unsigned char preempt_count;
- int pid;
- int tgid;
-};
-
-/*
* Function trace entry - function address and parent function addres:
*/
struct ftrace_entry {
char comm[TASK_COMM_LEN];
};
-struct trace_iterator;
-
/*
* The trace array - an array of per-CPU trace arrays. This is the
* highest level data structure that individual tracers deal with.
__ftrace_bad_type(); \
} while (0)
-/* Return values for print_line callback */
-enum print_line_t {
- TRACE_TYPE_PARTIAL_LINE = 0, /* Retry after flushing the seq */
- TRACE_TYPE_HANDLED = 1,
- TRACE_TYPE_UNHANDLED = 2, /* Relay to other output functions */
- TRACE_TYPE_NO_CONSUME = 3 /* Handled but ask to not consume */
-};
-
-
/*
* An option specific to a tracer. This is a boolean value.
* The bit is the bit index that sets its value on the
struct tracer_stat *stats;
};
-struct trace_seq {
- unsigned char buffer[PAGE_SIZE];
- unsigned int len;
- unsigned int readpos;
-};
-
-static inline void
-trace_seq_init(struct trace_seq *s)
-{
- s->len = 0;
- s->readpos = 0;
-}
-
#define TRACE_PIPE_ALL_CPU -1
-/*
- * Trace iterator - used by printout routines who present trace
- * results to users and which routines might sleep, etc:
- */
-struct trace_iterator {
- struct trace_array *tr;
- struct tracer *trace;
- void *private;
- int cpu_file;
- struct mutex mutex;
- struct ring_buffer_iter *buffer_iter[NR_CPUS];
-
- /* The below is zeroed out in pipe_read */
- struct trace_seq seq;
- struct trace_entry *ent;
- int cpu;
- u64 ts;
-
- unsigned long iter_flags;
- loff_t pos;
- long idx;
-
- cpumask_var_t started;
-};
-
int tracer_init(struct tracer *t, struct trace_array *tr);
int tracing_is_enabled(void);
void trace_wake_up(void);
void tracing_reset(struct trace_array *tr, int cpu);
void tracing_reset_online_cpus(struct trace_array *tr);
+void tracing_reset_current(int cpu);
+void tracing_reset_current_online_cpus(void);
int tracing_open_generic(struct inode *inode, struct file *filp);
+struct dentry *trace_create_file(const char *name,
+ mode_t mode,
+ struct dentry *parent,
+ void *data,
+ const struct file_operations *fops);
+
struct dentry *tracing_init_dentry(void);
void init_tracer_sysprof_debugfs(struct dentry *d_tracer);
struct ring_buffer_event;
struct ring_buffer_event *trace_buffer_lock_reserve(struct trace_array *tr,
- unsigned char type,
+ int type,
unsigned long len,
unsigned long flags,
int pc);
struct ring_buffer_event *event,
unsigned long flags, int pc);
-struct ring_buffer_event *
-trace_current_buffer_lock_reserve(unsigned char type, unsigned long len,
- 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);
struct task_struct *prev,
struct task_struct *next,
unsigned long flags, int pc);
-void tracing_record_cmdline(struct task_struct *tsk);
void tracing_sched_wakeup_trace(struct trace_array *tr,
struct task_struct *wakee,
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);
/* Standard output formatting function used for function return traces */
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
extern enum print_line_t print_graph_function(struct trace_iterator *iter);
+extern enum print_line_t
+trace_print_graph_duration(unsigned long long duration, struct trace_seq *s);
#ifdef CONFIG_DYNAMIC_FTRACE
/* TODO: make this variable */
return 1;
}
#endif /* CONFIG_DYNAMIC_FTRACE */
-
#else /* CONFIG_FUNCTION_GRAPH_TRACER */
static inline enum print_line_t
print_graph_function(struct trace_iterator *iter)
TRACE_ITER_LATENCY_FMT = 0x40000,
TRACE_ITER_GLOBAL_CLK = 0x80000,
TRACE_ITER_SLEEP_TIME = 0x100000,
+ TRACE_ITER_GRAPH_TIME = 0x200000,
};
/*
char *type;
int offset;
int size;
+ int is_signed;
};
-struct ftrace_event_call {
- 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 event_filter {
+ int n_preds;
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
+ char *filter_string;
};
struct event_subsystem {
struct list_head list;
const char *name;
struct dentry *entry;
- struct filter_pred **preds;
+ void *filter;
};
-#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);
+typedef int (*filter_pred_fn_t) (struct filter_pred *pred, void *event,
+ int val1, int val2);
struct filter_pred {
filter_pred_fn_t fn;
u64 val;
- char *str_val;
+ char str_val[MAX_FILTER_STR_VAL];
int str_len;
char *field_name;
int offset;
int not;
- int or;
- int compound;
- int clear;
+ int op;
+ int pop_n;
};
-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,
+extern void print_event_filter(struct ftrace_event_call *call,
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 int apply_event_filter(struct ftrace_event_call *call,
+ char *filter_string);
+extern int apply_subsystem_event_filter(struct event_subsystem *system,
+ char *filter_string);
+extern void print_subsystem_event_filter(struct event_subsystem *system,
+ struct trace_seq *s);
+
+static inline int
+filter_check_discard(struct ftrace_event_call *call, void *rec,
+ struct ring_buffer *buffer,
+ struct ring_buffer_event *event)
+{
+ if (unlikely(call->filter_active) && !filter_match_preds(call, rec)) {
+ ring_buffer_discard_commit(buffer, event);
+ return 1;
+ }
+
+ return 0;
+}
+
+#define DEFINE_COMPARISON_PRED(type) \
+static int filter_pred_##type(struct filter_pred *pred, void *event, \
+ int val1, int val2) \
+{ \
+ type *addr = (type *)(event + pred->offset); \
+ type val = (type)pred->val; \
+ int match = 0; \
+ \
+ switch (pred->op) { \
+ case OP_LT: \
+ match = (*addr < val); \
+ break; \
+ case OP_LE: \
+ match = (*addr <= val); \
+ break; \
+ case OP_GT: \
+ match = (*addr > val); \
+ break; \
+ case OP_GE: \
+ match = (*addr >= val); \
+ break; \
+ default: \
+ break; \
+ } \
+ \
+ return match; \
+}
+
+#define DEFINE_EQUALITY_PRED(size) \
+static int filter_pred_##size(struct filter_pred *pred, void *event, \
+ int val1, int val2) \
+{ \
+ u##size *addr = (u##size *)(event + pred->offset); \
+ u##size val = (u##size)pred->val; \
+ int match; \
+ \
+ match = (val == *addr) ^ pred->not; \
+ \
+ return match; \
+}
+
+extern struct mutex event_mutex;
+extern struct list_head ftrace_events;
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)
+#undef TRACE_EVENT_FORMAT
+#define TRACE_EVENT_FORMAT(call, proto, args, fmt, tstruct, tpfmt) \
+ extern struct ftrace_event_call event_##call;
+#undef TRACE_EVENT_FORMAT_NOFILTER
+#define TRACE_EVENT_FORMAT_NOFILTER(call, proto, args, fmt, tstruct, tpfmt)
+#include "trace_event_types.h"
#endif /* _LINUX_KERNEL_TRACE_H */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff