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#ifndef _PROBE_FINDER_H
#define _PROBE_FINDER_H
#include <stdbool.h>
#include "util.h"
#define MAX_PATH_LEN 256
#define MAX_PROBE_BUFFER 1024
#define MAX_PROBES 128
static inline int is_c_varname(const char *name)
{
/* TODO */
return isalpha(name[0]) || name[0] == '_';
}
struct probe_point {
char *event; /* Event name */
char *group; /* Event group */
/* Inputs */
char *file; /* File name */
int line; /* Line number */
char *lazy_line; /* Lazy line pattern */
char *function; /* Function name */
int offset; /* Offset bytes */
int nr_args; /* Number of arguments */
char **args; /* Arguments */
int retprobe; /* Return probe */
/* Output */
int found; /* Number of found probe points */
char *probes[MAX_PROBES]; /* Output buffers (will be allocated)*/
};
/* Line number container */
struct line_node {
struct list_head list;
unsigned int line;
};
/* Line range */
struct line_range {
char *file; /* File name */
char *function; /* Function name */
unsigned int start; /* Start line number */
unsigned int end; /* End line number */
int offset; /* Start line offset */
char *path; /* Real path name */
struct list_head line_list; /* Visible lines */
};
#ifndef NO_DWARF_SUPPORT
extern int find_probe_point(int fd, struct probe_point *pp);
extern int find_line_range(int fd, struct line_range *lr);
#include <dwarf.h>
#include <libdw.h>
struct probe_finder {
struct probe_point *pp; /* Target probe point */
/* For function searching */
Dwarf_Addr addr; /* Address */
const char *fname; /* File name */
int lno; /* Line number */
Dwarf_Die cu_die; /* Current CU */
/* For variable searching */
Dwarf_Op *fb_ops; /* Frame base attribute */
Dwarf_Addr cu_base; /* Current CU base address */
const char *var; /* Current variable name */
char *buf; /* Current output buffer */
int len; /* Length of output buffer */
struct list_head lcache; /* Line cache for lazy match */
};
struct line_finder {
struct line_range *lr; /* Target line range */
const char *fname; /* File name */
int lno_s; /* Start line number */
int lno_e; /* End line number */
Dwarf_Die cu_die; /* Current CU */
int found;
};
#endif /* NO_DWARF_SUPPORT */
#endif /*_PROBE_FINDER_H */
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