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("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE), 34 BRANCH_OPT("stack", PERF_SAMPLE_BRANCH_CALL_STACK), 35 BRANCH_END 36 }; 37 38 int parse_branch_str(const char *str, __u64 *mode) 39 { 40 #define ONLY_PLM \ 41 (PERF_SAMPLE_BRANCH_USER |\ 42 PERF_SAMPLE_BRANCH_KERNEL |\ 43 PERF_SAMPLE_BRANCH_HV) 44 45 int ret = 0; 46 char *p, *s; 47 char *os = NULL; 48 const struct branch_mode *br; 49 50 if (str == NULL) { 51 *mode = PERF_SAMPLE_BRANCH_ANY; 52 return 0; 53 } 54 55 /* because str is read-only */ 56 s = os = strdup(str); 57 if (!s) 58 return -1; 59 60 for (;;) { 61 p = strchr(s, ','); 62 if (p) 63 *p = '\0'; 64 65 for (br = branch_modes; br->name; br++) { 66 if (!strcasecmp(s, br->name)) 67 break; 68 } 69 if (!br->name) { 70 ret = -1; 71 pr_warning("unknown branch filter %s," 72 " check man page\n", s); 73 goto error; 74 } 75 76 *mode |= br->mode; 77 78 if (!p) 79 break; 80 81 s = p + 1; 82 } 83 84 /* default to any branch */ 85 if ((*mode & ~ONLY_PLM) == 0) { 86 *mode = PERF_SAMPLE_BRANCH_ANY; 87 } 88 error: 89 free(os); 90 return ret; 91 } 92 93 int 94 parse_branch_stack(const struct option *opt, const char *str, int unset) 95 { 96 __u64 *mode = (__u64 *)opt->value; 97 98 if (unset) 99 return 0; 100 101 /* 102 * cannot set it twice, -b + --branch-filter for instance 103 */ 104 if (*mode) 105 return -1; 106 107 return parse_branch_str(str, mode); 108 } 109