1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _PROBE_FINDER_H 2 #ifndef _PROBE_FINDER_H
3 #define _PROBE_FINDER_H 3 #define _PROBE_FINDER_H
4 4
5 #include <stdbool.h> 5 #include <stdbool.h>
6 #include "intlist.h" 6 #include "intlist.h"
7 #include "build-id.h" <<
8 #include "probe-event.h" 7 #include "probe-event.h"
9 #include <linux/ctype.h> !! 8 #include "sane_ctype.h"
10 9
11 #define MAX_PROBE_BUFFER 1024 10 #define MAX_PROBE_BUFFER 1024
12 #define MAX_PROBES 128 11 #define MAX_PROBES 128
13 #define MAX_PROBE_ARGS 128 12 #define MAX_PROBE_ARGS 128
14 13
15 #define PROBE_ARG_VARS "$vars" 14 #define PROBE_ARG_VARS "$vars"
16 #define PROBE_ARG_PARAMS "$params" 15 #define PROBE_ARG_PARAMS "$params"
17 16
18 static inline int is_c_varname(const char *nam 17 static inline int is_c_varname(const char *name)
19 { 18 {
20 /* TODO */ 19 /* TODO */
21 return isalpha(name[0]) || name[0] == 20 return isalpha(name[0]) || name[0] == '_';
22 } 21 }
23 22
24 #ifdef HAVE_DWARF_SUPPORT 23 #ifdef HAVE_DWARF_SUPPORT
25 24
26 #include "dwarf-aux.h" 25 #include "dwarf-aux.h"
27 #include "debuginfo.h" !! 26
>> 27 /* TODO: export debuginfo data structure even if no dwarf support */
>> 28
>> 29 /* debug information structure */
>> 30 struct debuginfo {
>> 31 Dwarf *dbg;
>> 32 Dwfl_Module *mod;
>> 33 Dwfl *dwfl;
>> 34 Dwarf_Addr bias;
>> 35 };
>> 36
>> 37 /* This also tries to open distro debuginfo */
>> 38 struct debuginfo *debuginfo__new(const char *path);
>> 39 void debuginfo__delete(struct debuginfo *dbg);
28 40
29 /* Find probe_trace_events specified by perf_p 41 /* Find probe_trace_events specified by perf_probe_event from debuginfo */
30 int debuginfo__find_trace_events(struct debugi 42 int debuginfo__find_trace_events(struct debuginfo *dbg,
31 struct perf_p 43 struct perf_probe_event *pev,
32 struct probe_ 44 struct probe_trace_event **tevs);
33 45
34 /* Find a perf_probe_point from debuginfo */ 46 /* Find a perf_probe_point from debuginfo */
35 int debuginfo__find_probe_point(struct debugin !! 47 int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr,
36 struct perf_pr 48 struct perf_probe_point *ppt);
37 49
>> 50 int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs,
>> 51 bool adjust_offset);
>> 52
38 /* Find a line range */ 53 /* Find a line range */
39 int debuginfo__find_line_range(struct debuginf 54 int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr);
40 55
41 /* Find available variables */ 56 /* Find available variables */
42 int debuginfo__find_available_vars_at(struct d 57 int debuginfo__find_available_vars_at(struct debuginfo *dbg,
43 struct p 58 struct perf_probe_event *pev,
44 struct v 59 struct variable_list **vls);
45 60
46 /* Find a src file from a DWARF tag path */ 61 /* Find a src file from a DWARF tag path */
47 int find_source_path(const char *raw_path, con !! 62 int get_real_path(const char *raw_path, const char *comp_dir,
48 const char *comp_dir, cha !! 63 char **new_path);
49 64
50 struct probe_finder { 65 struct probe_finder {
51 struct perf_probe_event *pev; 66 struct perf_probe_event *pev; /* Target probe event */
52 struct debuginfo *dbg; <<
53 67
54 /* Callback when a probe point is foun 68 /* Callback when a probe point is found */
55 int (*callback)(Dwarf_Die *sc_die, str 69 int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf);
56 70
57 /* For function searching */ 71 /* For function searching */
58 int lno; 72 int lno; /* Line number */
59 Dwarf_Addr addr; 73 Dwarf_Addr addr; /* Address */
60 const char *fname; 74 const char *fname; /* Real file name */
61 Dwarf_Die cu_die; 75 Dwarf_Die cu_die; /* Current CU */
62 Dwarf_Die sp_die; 76 Dwarf_Die sp_die;
63 struct intlist *lcache; 77 struct intlist *lcache; /* Line cache for lazy match */
64 78
65 /* For variable searching */ 79 /* For variable searching */
66 #if _ELFUTILS_PREREQ(0, 142) 80 #if _ELFUTILS_PREREQ(0, 142)
67 /* Call Frame Information from .eh_fra 81 /* Call Frame Information from .eh_frame */
68 Dwarf_CFI *cfi_eh; 82 Dwarf_CFI *cfi_eh;
69 /* Call Frame Information from .debug_ 83 /* Call Frame Information from .debug_frame */
70 Dwarf_CFI *cfi_dbg; 84 Dwarf_CFI *cfi_dbg;
71 #endif 85 #endif
72 Dwarf_Op *fb_ops; 86 Dwarf_Op *fb_ops; /* Frame base attribute */
73 unsigned int machine; 87 unsigned int machine; /* Target machine arch */
74 struct perf_probe_arg *pvar; 88 struct perf_probe_arg *pvar; /* Current target variable */
75 struct probe_trace_arg *tvar; 89 struct probe_trace_arg *tvar; /* Current result variable */
76 bool skip_empty_arg <<
77 }; 90 };
78 91
79 struct trace_event_finder { 92 struct trace_event_finder {
80 struct probe_finder pf; 93 struct probe_finder pf;
81 Dwfl_Module *mod; 94 Dwfl_Module *mod; /* For solving symbols */
82 struct probe_trace_event *tevs; 95 struct probe_trace_event *tevs; /* Found trace events */
83 int ntevs; 96 int ntevs; /* Number of trace events */
84 int max_tevs; 97 int max_tevs; /* Max number of trace events */
85 }; 98 };
86 99
87 struct available_var_finder { 100 struct available_var_finder {
88 struct probe_finder pf; 101 struct probe_finder pf;
89 Dwfl_Module *mod; 102 Dwfl_Module *mod; /* For solving symbols */
90 struct variable_list *vls; 103 struct variable_list *vls; /* Found variable lists */
91 int nvls; 104 int nvls; /* Number of variable lists */
92 int max_vls; 105 int max_vls; /* Max no. of variable lists */
93 bool child; 106 bool child; /* Search child scopes */
94 }; 107 };
95 108
96 struct line_finder { 109 struct line_finder {
97 struct line_range *lr; 110 struct line_range *lr; /* Target line range */
98 111
99 const char *fname; 112 const char *fname; /* File name */
100 int lno_s; 113 int lno_s; /* Start line number */
101 int lno_e; 114 int lno_e; /* End line number */
102 Dwarf_Die cu_die; 115 Dwarf_Die cu_die; /* Current CU */
103 Dwarf_Die sp_die; 116 Dwarf_Die sp_die;
104 int found; 117 int found;
105 }; 118 };
106 119
107 #endif /* HAVE_DWARF_SUPPORT */ 120 #endif /* HAVE_DWARF_SUPPORT */
108 121
109 #endif /*_PROBE_FINDER_H */ 122 #endif /*_PROBE_FINDER_H */
110 123
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.