1 /* SPDX-License-Identifier: GPL-2.0 */ <<
2 #ifndef __UNWIND_H 1 #ifndef __UNWIND_H
3 #define __UNWIND_H 2 #define __UNWIND_H
4 3
5 #include <linux/compiler.h> <<
6 #include <linux/types.h> 4 #include <linux/types.h>
7 #include "util/map_symbol.h" !! 5 #include "event.h"
8 !! 6 #include "symbol.h"
9 struct maps; !! 7 #include "thread.h"
10 struct perf_sample; <<
11 struct thread; <<
12 8
13 struct unwind_entry { 9 struct unwind_entry {
14 struct map_symbol ms; !! 10 struct map *map;
15 u64 ip; !! 11 struct symbol *sym;
>> 12 u64 ip;
16 }; 13 };
17 14
18 typedef int (*unwind_entry_cb_t)(struct unwind 15 typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
19 16
20 struct unwind_libunwind_ops { 17 struct unwind_libunwind_ops {
21 int (*prepare_access)(struct maps *map !! 18 int (*prepare_access)(struct thread *thread);
22 void (*flush_access)(struct maps *maps !! 19 void (*flush_access)(struct thread *thread);
23 void (*finish_access)(struct maps *map !! 20 void (*finish_access)(struct thread *thread);
24 int (*get_entries)(unwind_entry_cb_t c 21 int (*get_entries)(unwind_entry_cb_t cb, void *arg,
25 struct thread *thre 22 struct thread *thread,
26 struct perf_sample !! 23 struct perf_sample *data, int max_stack);
27 }; 24 };
28 25
29 #ifdef HAVE_DWARF_UNWIND_SUPPORT 26 #ifdef HAVE_DWARF_UNWIND_SUPPORT
30 /* <<
31 * When best_effort is set, don't report error <<
32 * be expanded in the future to be more permis <<
33 * error messages. <<
34 */ <<
35 int unwind__get_entries(unwind_entry_cb_t cb, 27 int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
36 struct thread *thread, 28 struct thread *thread,
37 struct perf_sample *da !! 29 struct perf_sample *data, int max_stack);
38 bool best_effort); <<
39 /* libunwind specific */ 30 /* libunwind specific */
40 #ifdef HAVE_LIBUNWIND_SUPPORT 31 #ifdef HAVE_LIBUNWIND_SUPPORT
41 #ifndef LIBUNWIND__ARCH_REG_ID 32 #ifndef LIBUNWIND__ARCH_REG_ID
42 #define LIBUNWIND__ARCH_REG_ID(regnum) libunwi 33 #define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arch_reg_id(regnum)
43 #endif 34 #endif
44 35
>> 36 #ifndef LIBUNWIND__ARCH_REG_SP
>> 37 #define LIBUNWIND__ARCH_REG_SP PERF_REG_SP
>> 38 #endif
>> 39
>> 40 #ifndef LIBUNWIND__ARCH_REG_IP
>> 41 #define LIBUNWIND__ARCH_REG_IP PERF_REG_IP
>> 42 #endif
>> 43
45 int LIBUNWIND__ARCH_REG_ID(int regnum); 44 int LIBUNWIND__ARCH_REG_ID(int regnum);
46 int unwind__prepare_access(struct maps *maps, !! 45 int unwind__prepare_access(struct thread *thread, struct map *map,
47 void unwind__flush_access(struct maps *maps); !! 46 bool *initialized);
48 void unwind__finish_access(struct maps *maps); !! 47 void unwind__flush_access(struct thread *thread);
>> 48 void unwind__finish_access(struct thread *thread);
49 #else 49 #else
50 static inline int unwind__prepare_access(struc !! 50 static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
51 struc 51 struct map *map __maybe_unused,
52 bool 52 bool *initialized __maybe_unused)
53 { 53 {
54 return 0; 54 return 0;
55 } 55 }
56 56
57 static inline void unwind__flush_access(struct !! 57 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
58 static inline void unwind__finish_access(struc !! 58 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
59 #endif 59 #endif
60 #else 60 #else
61 static inline int 61 static inline int
62 unwind__get_entries(unwind_entry_cb_t cb __may 62 unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
63 void *arg __maybe_unused, 63 void *arg __maybe_unused,
64 struct thread *thread __ma 64 struct thread *thread __maybe_unused,
65 struct perf_sample *data _ 65 struct perf_sample *data __maybe_unused,
66 int max_stack __maybe_unus !! 66 int max_stack __maybe_unused)
67 bool best_effort __maybe_u <<
68 { 67 {
69 return 0; 68 return 0;
70 } 69 }
71 70
72 static inline int unwind__prepare_access(struc !! 71 static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
73 struc 72 struct map *map __maybe_unused,
74 bool 73 bool *initialized __maybe_unused)
75 { 74 {
76 return 0; 75 return 0;
77 } 76 }
78 77
79 static inline void unwind__flush_access(struct !! 78 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
80 static inline void unwind__finish_access(struc !! 79 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
81 #endif /* HAVE_DWARF_UNWIND_SUPPORT */ 80 #endif /* HAVE_DWARF_UNWIND_SUPPORT */
82 #endif /* __UNWIND_H */ 81 #endif /* __UNWIND_H */
83 82
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