perf probe: Support --line option to show probable source-code lines
[deliverable/linux.git] / tools / perf / util / probe-finder.h
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1#ifndef _PROBE_FINDER_H
2#define _PROBE_FINDER_H
3
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4#include "util.h"
5
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6#define MAX_PATH_LEN 256
7#define MAX_PROBE_BUFFER 1024
8#define MAX_PROBES 128
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9
10static inline int is_c_varname(const char *name)
11{
12 /* TODO */
13 return isalpha(name[0]) || name[0] == '_';
14}
15
16struct probe_point {
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17 char *event; /* Event name */
18 char *group; /* Event group */
af663d75 19
4ea42b18 20 /* Inputs */
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21 char *file; /* File name */
22 int line; /* Line number */
4ea42b18 23
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24 char *function; /* Function name */
25 int offset; /* Offset bytes */
4ea42b18 26
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27 int nr_args; /* Number of arguments */
28 char **args; /* Arguments */
4ea42b18 29
27f3b24d 30 int retprobe; /* Return probe */
253977b0 31
4ea42b18 32 /* Output */
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33 int found; /* Number of found probe points */
34 char *probes[MAX_PROBES]; /* Output buffers (will be allocated)*/
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35};
36
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37/* Line number container */
38struct line_node {
39 struct list_head list;
40 unsigned int line;
41};
42
43/* Line range */
44struct line_range {
45 char *file; /* File name */
46 char *function; /* Function name */
47 unsigned int start; /* Start line number */
48 unsigned int end; /* End line number */
49 unsigned int offset; /* Start line offset */
50 char *path; /* Real path name */
51 struct list_head line_list; /* Visible lines */
52};
53
23e8ec0d 54#ifndef NO_LIBDWARF
4ea42b18 55extern int find_probepoint(int fd, struct probe_point *pp);
631c9def 56extern int find_line_range(int fd, struct line_range *lr);
4ea42b18 57
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58/* Workaround for undefined _MIPS_SZLONG bug in libdwarf.h: */
59#ifndef _MIPS_SZLONG
60# define _MIPS_SZLONG 0
61#endif
62
63#include <dwarf.h>
64#include <libdwarf.h>
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65
66struct probe_finder {
27f3b24d 67 struct probe_point *pp; /* Target probe point */
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68
69 /* For function searching */
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70 Dwarf_Addr addr; /* Address */
71 Dwarf_Unsigned fno; /* File number */
72 Dwarf_Unsigned lno; /* Line number */
73 Dwarf_Off inl_offs; /* Inline offset */
74 Dwarf_Die cu_die; /* Current CU */
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75
76 /* For variable searching */
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77 Dwarf_Addr cu_base; /* Current CU base address */
78 Dwarf_Locdesc fbloc; /* Location of Current Frame Base */
79 const char *var; /* Current variable name */
80 char *buf; /* Current output buffer */
81 int len; /* Length of output buffer */
4ea42b18 82};
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83
84struct line_finder {
85 struct line_range *lr; /* Target line range */
86
87 Dwarf_Unsigned fno; /* File number */
88 Dwarf_Unsigned lno_s; /* Start line number */
89 Dwarf_Unsigned lno_e; /* End line number */
90 Dwarf_Addr addr_s; /* Start address */
91 Dwarf_Addr addr_e; /* End address */
92 Dwarf_Die cu_die; /* Current CU */
93 int found;
94};
95
23e8ec0d 96#endif /* NO_LIBDWARF */
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97
98#endif /*_PROBE_FINDER_H */
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