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#ifndef __FTRACE_FSTACK_H__
#define __FTRACE_FSTACK_H__
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include "../uftrace.h"
struct sym;
struct ftrace_trigger;
enum fstack_flag {
FSTACK_FL_FILTERED = (1U << 0),
FSTACK_FL_NOTRACE = (1U << 1),
FSTACK_FL_NORECORD = (1U << 2),
FSTACK_FL_EXEC = (1U << 3),
FSTACK_FL_LONGJMP = (1U << 4),
};
enum context {
FSTACK_CTX_UNKNOWN = 0,
FSTACK_CTX_USER = 1,
FSTACK_CTX_KERNEL = 2,
};
struct ftrace_task_handle {
int tid;
bool valid;
bool done;
bool lost_seen;
bool display_depth_set;
FILE *fp;
struct sym *func;
struct ftrace_task *t;
struct ftrace_file_handle *h;
struct ftrace_ret_stack ustack;
struct ftrace_ret_stack kstack;
struct ftrace_ret_stack *rstack;
struct uftrace_rstack_list rstack_list;
int stack_count;
int lost_count;
int user_stack_count;
int display_depth;
int user_display_depth;
int column_index;
enum context ctx;
struct filter {
int in_count;
int out_count;
int depth;
} filter;
struct fstack {
unsigned long addr;
bool valid;
int orig_depth;
unsigned long flags;
uint64_t total_time;
uint64_t child_time;
} *func_stack;
struct fstack_arguments args;
};
enum argspec_string_bits {
/* bit index */
NEEDS_PAREN_BIT,
NEEDS_SEMI_COLON_BIT,
HAS_MORE_BIT,
IS_RETVAL_BIT,
NEEDS_ASSIGNMENT_BIT,
NEEDS_ESCAPE_BIT,
/* bit mask */
NEEDS_PAREN = (1U << NEEDS_PAREN_BIT),
NEEDS_SEMI_COLON = (1U << NEEDS_SEMI_COLON_BIT),
HAS_MORE = (1U << HAS_MORE_BIT),
IS_RETVAL = (1U << IS_RETVAL_BIT),
NEEDS_ASSIGNMENT = (1U << NEEDS_ASSIGNMENT_BIT),
NEEDS_ESCAPE = (1U << NEEDS_ESCAPE_BIT),
};
extern bool fstack_enabled;
void setup_task_handle(struct ftrace_file_handle *handle,
struct ftrace_task_handle *task, int tid);
struct ftrace_task_handle *get_task_handle(struct ftrace_file_handle *handle,
int tid);
void reset_task_handle(struct ftrace_file_handle *handle);
int read_rstack(struct ftrace_file_handle *handle,
struct ftrace_task_handle **task);
int peek_rstack(struct ftrace_file_handle *handle,
struct ftrace_task_handle **task);
void fstack_consume(struct ftrace_file_handle *handle,
struct ftrace_task_handle *task);
struct ftrace_ret_stack *
get_task_ustack(struct ftrace_file_handle *handle, int idx);
int read_task_ustack(struct ftrace_file_handle *handle,
struct ftrace_task_handle *task);
int read_task_args(struct ftrace_task_handle *task,
struct ftrace_ret_stack *rstack,
bool is_retval);
void setup_task_filter(char *tid_filter, struct ftrace_file_handle *handle);
int setup_fstack_filters(char *filter_str, char *trigger_str);
void setup_fstack_args(char *argspec);
void fstack_prepare_fixup(void);
int fstack_setup_filters(struct opts *opts, struct ftrace_file_handle *handle);
int fstack_entry(struct ftrace_task_handle *task,
struct ftrace_ret_stack *rstack,
struct ftrace_trigger *tr);
void fstack_exit(struct ftrace_task_handle *task);
int fstack_update(int type, struct ftrace_task_handle *task,
struct fstack *fstack);
struct ftrace_task_handle *fstack_skip(struct ftrace_file_handle *handle,
struct ftrace_task_handle *task,
int curr_depth);
bool fstack_check_filter(struct ftrace_task_handle *task);
void get_argspec_string(struct ftrace_task_handle *task,
char *args, size_t len,
enum argspec_string_bits str_mode);
#endif /* __FTRACE_FSTACK_H__ */
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