1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __UNWIND_H 2 #ifndef __UNWIND_H
3 #define __UNWIND_H 3 #define __UNWIND_H
4 4
5 #include <linux/compiler.h> 5 #include <linux/compiler.h>
6 #include <linux/types.h> 6 #include <linux/types.h>
7 #include "util/map_symbol.h" <<
8 7
9 struct maps; !! 8 struct map;
10 struct perf_sample; 9 struct perf_sample;
>> 10 struct symbol;
11 struct thread; 11 struct thread;
12 12
13 struct unwind_entry { 13 struct unwind_entry {
14 struct map_symbol ms; !! 14 struct map *map;
15 u64 ip; !! 15 struct symbol *sym;
>> 16 u64 ip;
16 }; 17 };
17 18
18 typedef int (*unwind_entry_cb_t)(struct unwind 19 typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
19 20
20 struct unwind_libunwind_ops { 21 struct unwind_libunwind_ops {
21 int (*prepare_access)(struct maps *map !! 22 int (*prepare_access)(struct thread *thread);
22 void (*flush_access)(struct maps *maps !! 23 void (*flush_access)(struct thread *thread);
23 void (*finish_access)(struct maps *map !! 24 void (*finish_access)(struct thread *thread);
24 int (*get_entries)(unwind_entry_cb_t c 25 int (*get_entries)(unwind_entry_cb_t cb, void *arg,
25 struct thread *thre 26 struct thread *thread,
26 struct perf_sample !! 27 struct perf_sample *data, int max_stack);
27 }; 28 };
28 29
29 #ifdef HAVE_DWARF_UNWIND_SUPPORT 30 #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, 31 int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
36 struct thread *thread, 32 struct thread *thread,
37 struct perf_sample *da !! 33 struct perf_sample *data, int max_stack);
38 bool best_effort); <<
39 /* libunwind specific */ 34 /* libunwind specific */
40 #ifdef HAVE_LIBUNWIND_SUPPORT 35 #ifdef HAVE_LIBUNWIND_SUPPORT
41 #ifndef LIBUNWIND__ARCH_REG_ID 36 #ifndef LIBUNWIND__ARCH_REG_ID
42 #define LIBUNWIND__ARCH_REG_ID(regnum) libunwi 37 #define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arch_reg_id(regnum)
43 #endif 38 #endif
44 39
>> 40 #ifndef LIBUNWIND__ARCH_REG_SP
>> 41 #define LIBUNWIND__ARCH_REG_SP PERF_REG_SP
>> 42 #endif
>> 43
>> 44 #ifndef LIBUNWIND__ARCH_REG_IP
>> 45 #define LIBUNWIND__ARCH_REG_IP PERF_REG_IP
>> 46 #endif
>> 47
45 int LIBUNWIND__ARCH_REG_ID(int regnum); 48 int LIBUNWIND__ARCH_REG_ID(int regnum);
46 int unwind__prepare_access(struct maps *maps, !! 49 int unwind__prepare_access(struct thread *thread, struct map *map,
47 void unwind__flush_access(struct maps *maps); !! 50 bool *initialized);
48 void unwind__finish_access(struct maps *maps); !! 51 void unwind__flush_access(struct thread *thread);
>> 52 void unwind__finish_access(struct thread *thread);
49 #else 53 #else
50 static inline int unwind__prepare_access(struc !! 54 static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
51 struc 55 struct map *map __maybe_unused,
52 bool 56 bool *initialized __maybe_unused)
53 { 57 {
54 return 0; 58 return 0;
55 } 59 }
56 60
57 static inline void unwind__flush_access(struct !! 61 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
58 static inline void unwind__finish_access(struc !! 62 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
59 #endif 63 #endif
60 #else 64 #else
61 static inline int 65 static inline int
62 unwind__get_entries(unwind_entry_cb_t cb __may 66 unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
63 void *arg __maybe_unused, 67 void *arg __maybe_unused,
64 struct thread *thread __ma 68 struct thread *thread __maybe_unused,
65 struct perf_sample *data _ 69 struct perf_sample *data __maybe_unused,
66 int max_stack __maybe_unus !! 70 int max_stack __maybe_unused)
67 bool best_effort __maybe_u <<
68 { 71 {
69 return 0; 72 return 0;
70 } 73 }
71 74
72 static inline int unwind__prepare_access(struc !! 75 static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
73 struc 76 struct map *map __maybe_unused,
74 bool 77 bool *initialized __maybe_unused)
75 { 78 {
76 return 0; 79 return 0;
77 } 80 }
78 81
79 static inline void unwind__flush_access(struct !! 82 static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
80 static inline void unwind__finish_access(struc !! 83 static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
81 #endif /* HAVE_DWARF_UNWIND_SUPPORT */ 84 #endif /* HAVE_DWARF_UNWIND_SUPPORT */
82 #endif /* __UNWIND_H */ 85 #endif /* __UNWIND_H */
83 86
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