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> 4 #include <linux/compiler.h>
6 #include <linux/types.h> 5 #include <linux/types.h>
7 #include "util/map_symbol.h" <<
8 6
9 struct maps; !! 7 struct map;
10 struct perf_sample; 8 struct perf_sample;
>> 9 struct symbol;
11 struct thread; 10 struct thread;
12 11
13 struct unwind_entry { 12 struct unwind_entry {
14 struct map_symbol ms; !! 13 struct map *map;
15 u64 ip; !! 14 struct symbol *sym;
>> 15 u64 ip;
16 }; 16 };
17 17
18 typedef int (*unwind_entry_cb_t)(struct unwind 18 typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
19 19
20 struct unwind_libunwind_ops { 20 struct unwind_libunwind_ops {
21 int (*prepare_access)(struct maps *map !! 21 int (*prepare_access)(struct thread *thread);
22 void (*flush_access)(struct maps *maps !! 22 void (*flush_access)(struct thread *thread);
23 void (*finish_access)(struct maps *map !! 23 void (*finish_access)(struct thread *thread);
24 int (*get_entries)(unwind_entry_cb_t c 24 int (*get_entries)(unwind_entry_cb_t cb, void *arg,
25 struct thread *thre 25 struct thread *thread,
26 struct perf_sample !! 26 struct perf_sample *data, int max_stack);
27 }; 27 };
28 28
29 #ifdef HAVE_DWARF_UNWIND_SUPPORT 29 #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, 30 int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
36 struct thread *thread, 31 struct thread *thread,
37 struct perf_sample *da !! 32 struct perf_sample *data, int max_stack);
38 bool best_effort); <<
39 /* libunwind specific */ 33 /* libunwind specific */
40 #ifdef HAVE_LIBUNWIND_SUPPORT 34 #ifdef HAVE_LIBUNWIND_SUPPORT
41 #ifndef LIBUNWIND__ARCH_REG_ID 35 #ifndef LIBUNWIND__ARCH_REG_ID
42 #define LIBUNWIND__ARCH_REG_ID(regnum) libunwi 36 #define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arch_reg_id(regnum)
43 #endif 37 #endif
44 38
>> 39 #ifndef LIBUNWIND__ARCH_REG_SP
>> 40 #define LIBUNWIND__ARCH_REG_SP PERF_REG_SP
>> 41 #endif
>> 42
>> 43 #ifndef LIBUNWIND__ARCH_REG_IP
>> 44 #define LIBUNWIND__ARCH_REG_IP PERF_REG_IP
>> 45 #endif
>> 46
45 int LIBUNWIND__ARCH_REG_ID(int regnum); 47 int LIBUNWIND__ARCH_REG_ID(int regnum);
46 int unwind__prepare_access(struct maps *maps, !! 48 int unwind__prepare_access(struct thread *thread, struct map *map,
47 void unwind__flush_access(struct maps *maps); !! 49 bool *initialized);
48 void unwind__finish_access(struct maps *maps); !! 50 void unwind__flush_access(struct thread *thread);
>> 51 void unwind__finish_access(struct thread *thread);
49 #else 52 #else
50 static inline int unwind__prepare_access(struc !! 53 static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
51 struc 54 struct map *map __maybe_unused,
52 bool 55 bool *initialized __maybe_unused)
53 { 56 {
54 return 0; 57 return 0;
55 } 58 }
56 59
57 static inline void unwind__flush_access(struct !! 60 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
58 static inline void unwind__finish_access(struc !! 61 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
59 #endif 62 #endif
60 #else 63 #else
61 static inline int 64 static inline int
62 unwind__get_entries(unwind_entry_cb_t cb __may 65 unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
63 void *arg __maybe_unused, 66 void *arg __maybe_unused,
64 struct thread *thread __ma 67 struct thread *thread __maybe_unused,
65 struct perf_sample *data _ 68 struct perf_sample *data __maybe_unused,
66 int max_stack __maybe_unus !! 69 int max_stack __maybe_unused)
67 bool best_effort __maybe_u <<
68 { 70 {
69 return 0; 71 return 0;
70 } 72 }
71 73
72 static inline int unwind__prepare_access(struc !! 74 static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
73 struc 75 struct map *map __maybe_unused,
74 bool 76 bool *initialized __maybe_unused)
75 { 77 {
76 return 0; 78 return 0;
77 } 79 }
78 80
79 static inline void unwind__flush_access(struct !! 81 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
80 static inline void unwind__finish_access(struc !! 82 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
81 #endif /* HAVE_DWARF_UNWIND_SUPPORT */ 83 #endif /* HAVE_DWARF_UNWIND_SUPPORT */
82 #endif /* __UNWIND_H */ 84 #endif /* __UNWIND_H */
83 85
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