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Commit | Line | Data |
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4ea42b18 MH |
1 | #ifndef _PROBE_FINDER_H |
2 | #define _PROBE_FINDER_H | |
3 | ||
804b3606 | 4 | #include <stdbool.h> |
4a58e611 | 5 | #include "util.h" |
4235b045 | 6 | #include "probe-event.h" |
4a58e611 | 7 | |
27f3b24d MH |
8 | #define MAX_PROBE_BUFFER 1024 |
9 | #define MAX_PROBES 128 | |
4ea42b18 MH |
10 | |
11 | static inline int is_c_varname(const char *name) | |
12 | { | |
13 | /* TODO */ | |
14 | return isalpha(name[0]) || name[0] == '_'; | |
15 | } | |
16 | ||
89fe808a | 17 | #ifdef HAVE_DWARF_SUPPORT |
ff741783 MH |
18 | |
19 | #include "dwarf-aux.h" | |
20 | ||
21 | /* TODO: export debuginfo data structure even if no dwarf support */ | |
22 | ||
23 | /* debug information structure */ | |
24 | struct debuginfo { | |
25 | Dwarf *dbg; | |
576b5237 | 26 | Dwfl_Module *mod; |
ff741783 MH |
27 | Dwfl *dwfl; |
28 | Dwarf_Addr bias; | |
29 | }; | |
30 | ||
31 | extern struct debuginfo *debuginfo__new(const char *path); | |
32 | extern struct debuginfo *debuginfo__new_online_kernel(unsigned long addr); | |
33 | extern void debuginfo__delete(struct debuginfo *self); | |
34 | ||
0e60836b | 35 | /* Find probe_trace_events specified by perf_probe_event from debuginfo */ |
ff741783 MH |
36 | extern int debuginfo__find_trace_events(struct debuginfo *self, |
37 | struct perf_probe_event *pev, | |
38 | struct probe_trace_event **tevs, | |
39 | int max_tevs); | |
4235b045 | 40 | |
fb1587d8 | 41 | /* Find a perf_probe_point from debuginfo */ |
ff741783 MH |
42 | extern int debuginfo__find_probe_point(struct debuginfo *self, |
43 | unsigned long addr, | |
44 | struct perf_probe_point *ppt); | |
fb1587d8 | 45 | |
cf6eb489 | 46 | /* Find a line range */ |
ff741783 MH |
47 | extern int debuginfo__find_line_range(struct debuginfo *self, |
48 | struct line_range *lr); | |
4ea42b18 | 49 | |
cf6eb489 | 50 | /* Find available variables */ |
ff741783 MH |
51 | extern int debuginfo__find_available_vars_at(struct debuginfo *self, |
52 | struct perf_probe_event *pev, | |
53 | struct variable_list **vls, | |
54 | int max_points, bool externs); | |
4ea42b18 MH |
55 | |
56 | struct probe_finder { | |
4235b045 | 57 | struct perf_probe_event *pev; /* Target probe event */ |
cf6eb489 MH |
58 | |
59 | /* Callback when a probe point is found */ | |
221d0611 | 60 | int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf); |
4ea42b18 MH |
61 | |
62 | /* For function searching */ | |
eed05fe7 | 63 | int lno; /* Line number */ |
804b3606 | 64 | Dwarf_Addr addr; /* Address */ |
4235b045 | 65 | const char *fname; /* Real file name */ |
804b3606 | 66 | Dwarf_Die cu_die; /* Current CU */ |
cd25f8bc | 67 | Dwarf_Die sp_die; |
4235b045 | 68 | struct list_head lcache; /* Line cache for lazy match */ |
4ea42b18 MH |
69 | |
70 | /* For variable searching */ | |
7752f1b0 | 71 | #if _ELFUTILS_PREREQ(0, 142) |
a34a9854 | 72 | Dwarf_CFI *cfi; /* Call Frame Information */ |
7752f1b0 | 73 | #endif |
804b3606 | 74 | Dwarf_Op *fb_ops; /* Frame base attribute */ |
4235b045 | 75 | struct perf_probe_arg *pvar; /* Current target variable */ |
0e60836b | 76 | struct probe_trace_arg *tvar; /* Current result variable */ |
4ea42b18 | 77 | }; |
631c9def | 78 | |
cf6eb489 MH |
79 | struct trace_event_finder { |
80 | struct probe_finder pf; | |
576b5237 | 81 | Dwfl_Module *mod; /* For solving symbols */ |
cf6eb489 MH |
82 | struct probe_trace_event *tevs; /* Found trace events */ |
83 | int ntevs; /* Number of trace events */ | |
84 | int max_tevs; /* Max number of trace events */ | |
85 | }; | |
86 | ||
87 | struct available_var_finder { | |
88 | struct probe_finder pf; | |
576b5237 | 89 | Dwfl_Module *mod; /* For solving symbols */ |
cf6eb489 MH |
90 | struct variable_list *vls; /* Found variable lists */ |
91 | int nvls; /* Number of variable lists */ | |
92 | int max_vls; /* Max no. of variable lists */ | |
fb8c5a56 MH |
93 | bool externs; /* Find external vars too */ |
94 | bool child; /* Search child scopes */ | |
cf6eb489 MH |
95 | }; |
96 | ||
631c9def | 97 | struct line_finder { |
804b3606 MH |
98 | struct line_range *lr; /* Target line range */ |
99 | ||
100 | const char *fname; /* File name */ | |
101 | int lno_s; /* Start line number */ | |
102 | int lno_e; /* End line number */ | |
804b3606 | 103 | Dwarf_Die cu_die; /* Current CU */ |
cd25f8bc | 104 | Dwarf_Die sp_die; |
631c9def MH |
105 | int found; |
106 | }; | |
107 | ||
89fe808a | 108 | #endif /* HAVE_DWARF_SUPPORT */ |
4ea42b18 MH |
109 | |
110 | #endif /*_PROBE_FINDER_H */ |