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