1 | // SPDX-License-Identifier: GPL-2.0 |
2 | #include "util/debug.h" |
3 | #include "util/event.h" |
4 | #include <subcmd/parse-options.h> |
5 | #include "util/parse-branch-options.h" |
6 | #include <stdlib.h> |
7 | #include <string.h> |
8 | |
9 | #define BRANCH_OPT(n, m) \ |
10 | { .name = n, .mode = (m) } |
11 | |
12 | #define BRANCH_END { .name = NULL } |
13 | |
14 | struct branch_mode { |
15 | const char *name; |
16 | int mode; |
17 | }; |
18 | |
19 | static const struct branch_mode branch_modes[] = { |
20 | BRANCH_OPT("u" , PERF_SAMPLE_BRANCH_USER), |
21 | BRANCH_OPT("k" , PERF_SAMPLE_BRANCH_KERNEL), |
22 | BRANCH_OPT("hv" , PERF_SAMPLE_BRANCH_HV), |
23 | BRANCH_OPT("any" , PERF_SAMPLE_BRANCH_ANY), |
24 | BRANCH_OPT("any_call" , PERF_SAMPLE_BRANCH_ANY_CALL), |
25 | BRANCH_OPT("any_ret" , PERF_SAMPLE_BRANCH_ANY_RETURN), |
26 | BRANCH_OPT("ind_call" , PERF_SAMPLE_BRANCH_IND_CALL), |
27 | BRANCH_OPT("abort_tx" , PERF_SAMPLE_BRANCH_ABORT_TX), |
28 | BRANCH_OPT("in_tx" , PERF_SAMPLE_BRANCH_IN_TX), |
29 | BRANCH_OPT("no_tx" , PERF_SAMPLE_BRANCH_NO_TX), |
30 | BRANCH_OPT("cond" , PERF_SAMPLE_BRANCH_COND), |
31 | BRANCH_OPT("ind_jmp" , PERF_SAMPLE_BRANCH_IND_JUMP), |
32 | BRANCH_OPT("call" , PERF_SAMPLE_BRANCH_CALL), |
33 | BRANCH_OPT("no_flags" , PERF_SAMPLE_BRANCH_NO_FLAGS), |
34 | BRANCH_OPT("no_cycles" , PERF_SAMPLE_BRANCH_NO_CYCLES), |
35 | BRANCH_OPT("save_type" , PERF_SAMPLE_BRANCH_TYPE_SAVE), |
36 | BRANCH_OPT("stack" , PERF_SAMPLE_BRANCH_CALL_STACK), |
37 | BRANCH_OPT("hw_index" , PERF_SAMPLE_BRANCH_HW_INDEX), |
38 | BRANCH_OPT("priv" , PERF_SAMPLE_BRANCH_PRIV_SAVE), |
39 | BRANCH_OPT("counter" , PERF_SAMPLE_BRANCH_COUNTERS), |
40 | BRANCH_END |
41 | }; |
42 | |
43 | int parse_branch_str(const char *str, __u64 *mode) |
44 | { |
45 | #define ONLY_PLM \ |
46 | (PERF_SAMPLE_BRANCH_USER |\ |
47 | PERF_SAMPLE_BRANCH_KERNEL |\ |
48 | PERF_SAMPLE_BRANCH_HV) |
49 | |
50 | int ret = 0; |
51 | char *p, *s; |
52 | char *os = NULL; |
53 | const struct branch_mode *br; |
54 | |
55 | if (str == NULL) { |
56 | *mode = PERF_SAMPLE_BRANCH_ANY; |
57 | return 0; |
58 | } |
59 | |
60 | /* because str is read-only */ |
61 | s = os = strdup(str); |
62 | if (!s) |
63 | return -1; |
64 | |
65 | for (;;) { |
66 | p = strchr(s, ','); |
67 | if (p) |
68 | *p = '\0'; |
69 | |
70 | for (br = branch_modes; br->name; br++) { |
71 | if (!strcasecmp(s, br->name)) |
72 | break; |
73 | } |
74 | if (!br->name) { |
75 | ret = -1; |
76 | pr_warning("unknown branch filter %s," |
77 | " check man page\n" , s); |
78 | goto error; |
79 | } |
80 | |
81 | *mode |= br->mode; |
82 | |
83 | if (!p) |
84 | break; |
85 | |
86 | s = p + 1; |
87 | } |
88 | |
89 | /* default to any branch */ |
90 | if ((*mode & ~ONLY_PLM) == 0) { |
91 | *mode = PERF_SAMPLE_BRANCH_ANY; |
92 | } |
93 | error: |
94 | free(os); |
95 | return ret; |
96 | } |
97 | |
98 | int |
99 | parse_branch_stack(const struct option *opt, const char *str, int unset) |
100 | { |
101 | __u64 *mode = (__u64 *)opt->value; |
102 | |
103 | if (unset) |
104 | return 0; |
105 | |
106 | /* |
107 | * cannot set it twice, -b + --branch-filter for instance |
108 | */ |
109 | if (*mode) { |
110 | pr_err("Error: Can't use --branch-any (-b) with --branch-filter (-j).\n" ); |
111 | return -1; |
112 | } |
113 | |
114 | return parse_branch_str(str, mode); |
115 | } |
116 | |