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" |
5a62257a | 6 | #include "intlist.h" |
4235b045 | 7 | #include "probe-event.h" |
4a58e611 | 8 | |
27f3b24d MH |
9 | #define MAX_PROBE_BUFFER 1024 |
10 | #define MAX_PROBES 128 | |
7969ec77 | 11 | #define MAX_PROBE_ARGS 128 |
4ea42b18 | 12 | |
f8bffbf1 MH |
13 | #define PROBE_ARG_VARS "$vars" |
14 | #define PROBE_ARG_PARAMS "$params" | |
15 | ||
4ea42b18 MH |
16 | static inline int is_c_varname(const char *name) |
17 | { | |
18 | /* TODO */ | |
19 | return isalpha(name[0]) || name[0] == '_'; | |
20 | } | |
21 | ||
89fe808a | 22 | #ifdef HAVE_DWARF_SUPPORT |
ff741783 MH |
23 | |
24 | #include "dwarf-aux.h" | |
25 | ||
26 | /* TODO: export debuginfo data structure even if no dwarf support */ | |
27 | ||
28 | /* debug information structure */ | |
29 | struct debuginfo { | |
30 | Dwarf *dbg; | |
576b5237 | 31 | Dwfl_Module *mod; |
ff741783 MH |
32 | Dwfl *dwfl; |
33 | Dwarf_Addr bias; | |
34 | }; | |
35 | ||
a15ad2f5 | 36 | /* This also tries to open distro debuginfo */ |
ff741783 | 37 | extern struct debuginfo *debuginfo__new(const char *path); |
316c7136 | 38 | extern void debuginfo__delete(struct debuginfo *dbg); |
ff741783 | 39 | |
0e60836b | 40 | /* Find probe_trace_events specified by perf_probe_event from debuginfo */ |
316c7136 | 41 | extern int debuginfo__find_trace_events(struct debuginfo *dbg, |
ff741783 | 42 | struct perf_probe_event *pev, |
ddb2f58f | 43 | struct probe_trace_event **tevs); |
4235b045 | 44 | |
fb1587d8 | 45 | /* Find a perf_probe_point from debuginfo */ |
316c7136 | 46 | extern int debuginfo__find_probe_point(struct debuginfo *dbg, |
ff741783 MH |
47 | unsigned long addr, |
48 | struct perf_probe_point *ppt); | |
fb1587d8 | 49 | |
cf6eb489 | 50 | /* Find a line range */ |
316c7136 | 51 | extern int debuginfo__find_line_range(struct debuginfo *dbg, |
ff741783 | 52 | struct line_range *lr); |
4ea42b18 | 53 | |
cf6eb489 | 54 | /* Find available variables */ |
316c7136 | 55 | extern int debuginfo__find_available_vars_at(struct debuginfo *dbg, |
ff741783 | 56 | struct perf_probe_event *pev, |
ddb2f58f | 57 | struct variable_list **vls); |
4ea42b18 | 58 | |
09ed8975 NA |
59 | /* Find a src file from a DWARF tag path */ |
60 | int get_real_path(const char *raw_path, const char *comp_dir, | |
61 | char **new_path); | |
62 | ||
4ea42b18 | 63 | struct probe_finder { |
4235b045 | 64 | struct perf_probe_event *pev; /* Target probe event */ |
cf6eb489 MH |
65 | |
66 | /* Callback when a probe point is found */ | |
221d0611 | 67 | int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf); |
4ea42b18 MH |
68 | |
69 | /* For function searching */ | |
eed05fe7 | 70 | int lno; /* Line number */ |
804b3606 | 71 | Dwarf_Addr addr; /* Address */ |
4235b045 | 72 | const char *fname; /* Real file name */ |
804b3606 | 73 | Dwarf_Die cu_die; /* Current CU */ |
cd25f8bc | 74 | Dwarf_Die sp_die; |
5a62257a | 75 | struct intlist *lcache; /* Line cache for lazy match */ |
4ea42b18 MH |
76 | |
77 | /* For variable searching */ | |
7752f1b0 | 78 | #if _ELFUTILS_PREREQ(0, 142) |
a34a9854 | 79 | Dwarf_CFI *cfi; /* Call Frame Information */ |
7752f1b0 | 80 | #endif |
804b3606 | 81 | Dwarf_Op *fb_ops; /* Frame base attribute */ |
4235b045 | 82 | struct perf_probe_arg *pvar; /* Current target variable */ |
0e60836b | 83 | struct probe_trace_arg *tvar; /* Current result variable */ |
4ea42b18 | 84 | }; |
631c9def | 85 | |
cf6eb489 MH |
86 | struct trace_event_finder { |
87 | struct probe_finder pf; | |
576b5237 | 88 | Dwfl_Module *mod; /* For solving symbols */ |
cf6eb489 MH |
89 | struct probe_trace_event *tevs; /* Found trace events */ |
90 | int ntevs; /* Number of trace events */ | |
91 | int max_tevs; /* Max number of trace events */ | |
92 | }; | |
93 | ||
94 | struct available_var_finder { | |
95 | struct probe_finder pf; | |
576b5237 | 96 | Dwfl_Module *mod; /* For solving symbols */ |
cf6eb489 MH |
97 | struct variable_list *vls; /* Found variable lists */ |
98 | int nvls; /* Number of variable lists */ | |
99 | int max_vls; /* Max no. of variable lists */ | |
fb8c5a56 | 100 | bool child; /* Search child scopes */ |
cf6eb489 MH |
101 | }; |
102 | ||
631c9def | 103 | struct line_finder { |
804b3606 MH |
104 | struct line_range *lr; /* Target line range */ |
105 | ||
106 | const char *fname; /* File name */ | |
107 | int lno_s; /* Start line number */ | |
108 | int lno_e; /* End line number */ | |
804b3606 | 109 | Dwarf_Die cu_die; /* Current CU */ |
cd25f8bc | 110 | Dwarf_Die sp_die; |
631c9def MH |
111 | int found; |
112 | }; | |
113 | ||
89fe808a | 114 | #endif /* HAVE_DWARF_SUPPORT */ |
4ea42b18 MH |
115 | |
116 | #endif /*_PROBE_FINDER_H */ |