diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/ftrace_event.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/ftrace_event.h | 312 |
1 files changed, 0 insertions, 312 deletions
diff --git a/ANDROID_3.4.5/include/linux/ftrace_event.h b/ANDROID_3.4.5/include/linux/ftrace_event.h deleted file mode 100644 index 176a939d..00000000 --- a/ANDROID_3.4.5/include/linux/ftrace_event.h +++ /dev/null @@ -1,312 +0,0 @@ -#ifndef _LINUX_FTRACE_EVENT_H -#define _LINUX_FTRACE_EVENT_H - -#include <linux/ring_buffer.h> -#include <linux/trace_seq.h> -#include <linux/percpu.h> -#include <linux/hardirq.h> -#include <linux/perf_event.h> - -struct trace_array; -struct tracer; -struct dentry; - -struct trace_print_flags { - unsigned long mask; - const char *name; -}; - -struct trace_print_flags_u64 { - unsigned long long mask; - const char *name; -}; - -const char *ftrace_print_flags_seq(struct trace_seq *p, const char *delim, - unsigned long flags, - const struct trace_print_flags *flag_array); - -const char *ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val, - const struct trace_print_flags *symbol_array); - -#if BITS_PER_LONG == 32 -const char *ftrace_print_symbols_seq_u64(struct trace_seq *p, - unsigned long long val, - const struct trace_print_flags_u64 - *symbol_array); -#endif - -const char *ftrace_print_hex_seq(struct trace_seq *p, - const unsigned char *buf, int len); - -/* - * 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 short type; - unsigned char flags; - unsigned char preempt_count; - int pid; - int padding; -}; - -#define FTRACE_MAX_EVENT \ - ((1 << (sizeof(((struct trace_entry *)0)->type) * 8)) - 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]; - unsigned long iter_flags; - - /* trace_seq for __print_flags() and __print_symbolic() etc. */ - struct trace_seq tmp_seq; - - /* The below is zeroed out in pipe_read */ - struct trace_seq seq; - struct trace_entry *ent; - unsigned long lost_events; - int leftover; - int ent_size; - int cpu; - u64 ts; - - loff_t pos; - long idx; - - cpumask_var_t started; -}; - - -struct trace_event; - -typedef enum print_line_t (*trace_print_func)(struct trace_iterator *iter, - int flags, struct trace_event *event); - -struct trace_event_functions { - trace_print_func trace; - trace_print_func raw; - trace_print_func hex; - trace_print_func binary; -}; - -struct trace_event { - struct hlist_node node; - struct list_head list; - int type; - struct trace_event_functions *funcs; -}; - -extern int register_ftrace_event(struct trace_event *event); -extern int unregister_ftrace_event(struct trace_event *event); - -/* 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 */ -}; - -void tracing_generic_entry_update(struct trace_entry *entry, - unsigned long flags, - int pc); -struct ring_buffer_event * -trace_current_buffer_lock_reserve(struct ring_buffer **current_buffer, - int type, unsigned long len, - unsigned long flags, int pc); -void trace_current_buffer_unlock_commit(struct ring_buffer *buffer, - struct ring_buffer_event *event, - unsigned long flags, int pc); -void trace_nowake_buffer_unlock_commit(struct ring_buffer *buffer, - struct ring_buffer_event *event, - unsigned long flags, int pc); -void trace_nowake_buffer_unlock_commit_regs(struct ring_buffer *buffer, - struct ring_buffer_event *event, - unsigned long flags, int pc, - struct pt_regs *regs); -void trace_current_buffer_discard_commit(struct ring_buffer *buffer, - struct ring_buffer_event *event); - -void tracing_record_cmdline(struct task_struct *tsk); - -struct event_filter; - -enum trace_reg { - TRACE_REG_REGISTER, - TRACE_REG_UNREGISTER, -#ifdef CONFIG_PERF_EVENTS - TRACE_REG_PERF_REGISTER, - TRACE_REG_PERF_UNREGISTER, - TRACE_REG_PERF_OPEN, - TRACE_REG_PERF_CLOSE, - TRACE_REG_PERF_ADD, - TRACE_REG_PERF_DEL, -#endif -}; - -struct ftrace_event_call; - -struct ftrace_event_class { - char *system; - void *probe; -#ifdef CONFIG_PERF_EVENTS - void *perf_probe; -#endif - int (*reg)(struct ftrace_event_call *event, - enum trace_reg type, void *data); - int (*define_fields)(struct ftrace_event_call *); - struct list_head *(*get_fields)(struct ftrace_event_call *); - struct list_head fields; - int (*raw_init)(struct ftrace_event_call *); -}; - -extern int ftrace_event_reg(struct ftrace_event_call *event, - enum trace_reg type, void *data); - -enum { - TRACE_EVENT_FL_ENABLED_BIT, - TRACE_EVENT_FL_FILTERED_BIT, - TRACE_EVENT_FL_RECORDED_CMD_BIT, - TRACE_EVENT_FL_CAP_ANY_BIT, - TRACE_EVENT_FL_NO_SET_FILTER_BIT, - TRACE_EVENT_FL_IGNORE_ENABLE_BIT, -}; - -enum { - TRACE_EVENT_FL_ENABLED = (1 << TRACE_EVENT_FL_ENABLED_BIT), - TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT), - TRACE_EVENT_FL_RECORDED_CMD = (1 << TRACE_EVENT_FL_RECORDED_CMD_BIT), - TRACE_EVENT_FL_CAP_ANY = (1 << TRACE_EVENT_FL_CAP_ANY_BIT), - TRACE_EVENT_FL_NO_SET_FILTER = (1 << TRACE_EVENT_FL_NO_SET_FILTER_BIT), - TRACE_EVENT_FL_IGNORE_ENABLE = (1 << TRACE_EVENT_FL_IGNORE_ENABLE_BIT), -}; - -struct ftrace_event_call { - struct list_head list; - struct ftrace_event_class *class; - char *name; - struct dentry *dir; - struct trace_event event; - const char *print_fmt; - struct event_filter *filter; - void *mod; - void *data; - - /* - * 32 bit flags: - * bit 1: enabled - * bit 2: filter_active - * bit 3: enabled cmd record - * - * Changes to flags must hold the event_mutex. - * - * Note: Reads of flags do not hold the event_mutex since - * they occur in critical sections. But the way flags - * is currently used, these changes do no affect the code - * except that when a change is made, it may have a slight - * delay in propagating the changes to other CPUs due to - * caching and such. - */ - unsigned int flags; - -#ifdef CONFIG_PERF_EVENTS - int perf_refcount; - struct hlist_head __percpu *perf_events; -#endif -}; - -#define __TRACE_EVENT_FLAGS(name, value) \ - static int __init trace_init_flags_##name(void) \ - { \ - event_##name.flags = value; \ - return 0; \ - } \ - early_initcall(trace_init_flags_##name); - -#define PERF_MAX_TRACE_SIZE 2048 - -#define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */ - -extern void destroy_preds(struct ftrace_event_call *call); -extern int filter_match_preds(struct event_filter *filter, void *rec); -extern int filter_current_check_discard(struct ring_buffer *buffer, - struct ftrace_event_call *call, - void *rec, - struct ring_buffer_event *event); - -enum { - FILTER_OTHER = 0, - FILTER_STATIC_STRING, - FILTER_DYN_STRING, - FILTER_PTR_STRING, - FILTER_TRACE_FN, -}; - -#define EVENT_STORAGE_SIZE 128 -extern struct mutex event_storage_mutex; -extern char event_storage[EVENT_STORAGE_SIZE]; - -extern int trace_event_raw_init(struct ftrace_event_call *call); -extern int trace_define_field(struct ftrace_event_call *call, const char *type, - const char *name, int offset, int size, - int is_signed, int filter_type); -extern int trace_add_event_call(struct ftrace_event_call *call); -extern void trace_remove_event_call(struct ftrace_event_call *call); - -#define is_signed_type(type) (((type)(-1)) < 0) - -int trace_set_clr_event(const char *system, const char *event, int set); - -/* - * 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) - -#ifdef CONFIG_PERF_EVENTS -struct perf_event; - -DECLARE_PER_CPU(struct pt_regs, perf_trace_regs); - -extern int perf_trace_init(struct perf_event *event); -extern void perf_trace_destroy(struct perf_event *event); -extern int perf_trace_add(struct perf_event *event, int flags); -extern void perf_trace_del(struct perf_event *event, int flags); -extern int ftrace_profile_set_filter(struct perf_event *event, int event_id, - char *filter_str); -extern void ftrace_profile_free_filter(struct perf_event *event); -extern void *perf_trace_buf_prepare(int size, unsigned short type, - struct pt_regs *regs, int *rctxp); - -static inline void -perf_trace_buf_submit(void *raw_data, int size, int rctx, u64 addr, - u64 count, struct pt_regs *regs, void *head) -{ - perf_tp_event(addr, count, raw_data, size, regs, head, rctx); -} -#endif - -#endif /* _LINUX_FTRACE_EVENT_H */ |