blob: 306810c32f6bdb2ae958ee9ac6d29eb53ada96a0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
#ifndef _PROBE_FINDER_H
#define _PROBE_FINDER_H
#define _stringify(n) #n
#define stringify(n) _stringify(n)
#ifdef DEBUG
#define debug(fmt ...) \
fprintf(stderr, "DBG(" __FILE__ ":" stringify(__LINE__) "): " fmt)
#else
#define debug(fmt ...) do {} while (0)
#endif
#define ERR_IF(cnd) \
do { if (cnd) { \
fprintf(stderr, "Error (" __FILE__ ":" stringify(__LINE__) \
"): " stringify(cnd) "\n"); \
exit(1); \
} } while (0)
#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 {
/* Inputs */
char *file; /* File name */
int line; /* Line number */
char *function; /* Function name */
int offset; /* Offset bytes */
int nr_args; /* Number of arguments */
char **args; /* Arguments */
/* Output */
int found; /* Number of found probe points */
char *probes[MAX_PROBES]; /* Output buffers (will be allocated)*/
};
#ifndef NO_LIBDWARF
extern int find_probepoint(int fd, struct probe_point *pp);
#include <libdwarf/dwarf.h>
#include <libdwarf/libdwarf.h>
struct probe_finder {
struct probe_point *pp; /* Target probe point */
/* For function searching */
Dwarf_Addr addr; /* Address */
Dwarf_Unsigned fno; /* File number */
Dwarf_Off inl_offs; /* Inline offset */
/* For variable searching */
Dwarf_Addr cu_base; /* Current CU base address */
Dwarf_Locdesc fbloc; /* Location of Current Frame Base */
const char *var; /* Current variable name */
char *buf; /* Current output buffer */
int len; /* Length of output buffer */
};
#endif /* NO_LIBDWARF */
#endif /*_PROBE_FINDER_H */
|
