Commit | Line | Data |
---|---|---|
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 */ |
3938bad4 ACM |
37 | struct debuginfo *debuginfo__new(const char *path); |
38 | void debuginfo__delete(struct debuginfo *dbg); | |
ff741783 | 39 | |
0e60836b | 40 | /* Find probe_trace_events specified by perf_probe_event from debuginfo */ |
3938bad4 ACM |
41 | int debuginfo__find_trace_events(struct debuginfo *dbg, |
42 | struct perf_probe_event *pev, | |
43 | struct probe_trace_event **tevs); | |
4235b045 | 44 | |
fb1587d8 | 45 | /* Find a perf_probe_point from debuginfo */ |
3938bad4 ACM |
46 | int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr, |
47 | struct perf_probe_point *ppt); | |
fb1587d8 | 48 | |
cf6eb489 | 49 | /* Find a line range */ |
3938bad4 | 50 | int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr); |
4ea42b18 | 51 | |
cf6eb489 | 52 | /* Find available variables */ |
3938bad4 ACM |
53 | int debuginfo__find_available_vars_at(struct debuginfo *dbg, |
54 | struct perf_probe_event *pev, | |
55 | struct variable_list **vls); | |
4ea42b18 | 56 | |
09ed8975 NA |
57 | /* Find a src file from a DWARF tag path */ |
58 | int get_real_path(const char *raw_path, const char *comp_dir, | |
59 | char **new_path); | |
60 | ||
4ea42b18 | 61 | struct probe_finder { |
4235b045 | 62 | struct perf_probe_event *pev; /* Target probe event */ |
cf6eb489 MH |
63 | |
64 | /* Callback when a probe point is found */ | |
221d0611 | 65 | int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf); |
4ea42b18 MH |
66 | |
67 | /* For function searching */ | |
eed05fe7 | 68 | int lno; /* Line number */ |
804b3606 | 69 | Dwarf_Addr addr; /* Address */ |
4235b045 | 70 | const char *fname; /* Real file name */ |
804b3606 | 71 | Dwarf_Die cu_die; /* Current CU */ |
cd25f8bc | 72 | Dwarf_Die sp_die; |
5a62257a | 73 | struct intlist *lcache; /* Line cache for lazy match */ |
4ea42b18 MH |
74 | |
75 | /* For variable searching */ | |
7752f1b0 | 76 | #if _ELFUTILS_PREREQ(0, 142) |
270bde1e HK |
77 | /* Call Frame Information from .eh_frame */ |
78 | Dwarf_CFI *cfi_eh; | |
79 | /* Call Frame Information from .debug_frame */ | |
80 | Dwarf_CFI *cfi_dbg; | |
7752f1b0 | 81 | #endif |
804b3606 | 82 | Dwarf_Op *fb_ops; /* Frame base attribute */ |
4235b045 | 83 | struct perf_probe_arg *pvar; /* Current target variable */ |
0e60836b | 84 | struct probe_trace_arg *tvar; /* Current result variable */ |
4ea42b18 | 85 | }; |
631c9def | 86 | |
cf6eb489 MH |
87 | struct trace_event_finder { |
88 | struct probe_finder pf; | |
576b5237 | 89 | Dwfl_Module *mod; /* For solving symbols */ |
cf6eb489 MH |
90 | struct probe_trace_event *tevs; /* Found trace events */ |
91 | int ntevs; /* Number of trace events */ | |
92 | int max_tevs; /* Max number of trace events */ | |
93 | }; | |
94 | ||
95 | struct available_var_finder { | |
96 | struct probe_finder pf; | |
576b5237 | 97 | Dwfl_Module *mod; /* For solving symbols */ |
cf6eb489 MH |
98 | struct variable_list *vls; /* Found variable lists */ |
99 | int nvls; /* Number of variable lists */ | |
100 | int max_vls; /* Max no. of variable lists */ | |
fb8c5a56 | 101 | bool child; /* Search child scopes */ |
cf6eb489 MH |
102 | }; |
103 | ||
631c9def | 104 | struct line_finder { |
804b3606 MH |
105 | struct line_range *lr; /* Target line range */ |
106 | ||
107 | const char *fname; /* File name */ | |
108 | int lno_s; /* Start line number */ | |
109 | int lno_e; /* End line number */ | |
804b3606 | 110 | Dwarf_Die cu_die; /* Current CU */ |
cd25f8bc | 111 | Dwarf_Die sp_die; |
631c9def MH |
112 | int found; |
113 | }; | |
114 | ||
89fe808a | 115 | #endif /* HAVE_DWARF_SUPPORT */ |
4ea42b18 MH |
116 | |
117 | #endif /*_PROBE_FINDER_H */ |