1 #include "perf.h" 2 #include "util/debug.h" 3 #include "util/symbol.h" 4 #include "util/sort.h" 5 #include "util/evsel.h" 6 #include "util/evlist.h" 7 #include "util/machine.h" 8 #include "util/thread.h" 9 #include "tests/hists_common.h" 10 11 static struct { 12 u32 pid; 13 const char *comm; 14 } fake_threads[] = { 15 { FAKE_PID_PERF1, "perf" }, 16 { FAKE_PID_PERF2, "perf" }, 17 { FAKE_PID_BASH, "bash" }, 18 }; 19 20 static struct { 21 u32 pid; 22 u64 start; 23 const char *filename; 24 } fake_mmap_info[] = { 25 { FAKE_PID_PERF1, FAKE_MAP_PERF, "perf" }, 26 { FAKE_PID_PERF1, FAKE_MAP_LIBC, "libc" }, 27 { FAKE_PID_PERF1, FAKE_MAP_KERNEL, "[kernel]" }, 28 { FAKE_PID_PERF2, FAKE_MAP_PERF, "perf" }, 29 { FAKE_PID_PERF2, FAKE_MAP_LIBC, "libc" }, 30 { FAKE_PID_PERF2, FAKE_MAP_KERNEL, "[kernel]" }, 31 { FAKE_PID_BASH, FAKE_MAP_BASH, "bash" }, 32 { FAKE_PID_BASH, FAKE_MAP_LIBC, "libc" }, 33 { FAKE_PID_BASH, FAKE_MAP_KERNEL, "[kernel]" }, 34 }; 35 36 struct fake_sym { 37 u64 start; 38 u64 length; 39 const char *name; 40 }; 41 42 static struct fake_sym perf_syms[] = { 43 { FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "main" }, 44 { FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "run_command" }, 45 { FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "cmd_record" }, 46 }; 47 48 static struct fake_sym bash_syms[] = { 49 { FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "main" }, 50 { FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "xmalloc" }, 51 { FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "xfree" }, 52 }; 53 54 static struct fake_sym libc_syms[] = { 55 { 700, 100, "malloc" }, 56 { 800, 100, "free" }, 57 { 900, 100, "realloc" }, 58 { FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "malloc" }, 59 { FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "free" }, 60 { FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "realloc" }, 61 }; 62 63 static struct fake_sym kernel_syms[] = { 64 { FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "schedule" }, 65 { FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "page_fault" }, 66 { FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "sys_perf_event_open" }, 67 }; 68 69 static struct { 70 const char *dso_name; 71 struct fake_sym *syms; 72 size_t nr_syms; 73 } fake_symbols[] = { 74 { "perf", perf_syms, ARRAY_SIZE(perf_syms) }, 75 { "bash", bash_syms, ARRAY_SIZE(bash_syms) }, 76 { "libc", libc_syms, ARRAY_SIZE(libc_syms) }, 77 { "[kernel]", kernel_syms, ARRAY_SIZE(kernel_syms) }, 78 }; 79 80 struct machine *setup_fake_machine(struct machines *machines) 81 { 82 struct machine *machine = machines__find(machines, HOST_KERNEL_ID); 83 size_t i; 84 85 if (machine == NULL) { 86 pr_debug("Not enough memory for machine setup\n"); 87 return NULL; 88 } 89 90 for (i = 0; i < ARRAY_SIZE(fake_threads); i++) { 91 struct thread *thread; 92 93 thread = machine__findnew_thread(machine, fake_threads[i].pid, 94 fake_threads[i].pid); 95 if (thread == NULL) 96 goto out; 97 98 thread__set_comm(thread, fake_threads[i].comm, 0); 99 thread__put(thread); 100 } 101 102 for (i = 0; i < ARRAY_SIZE(fake_mmap_info); i++) { 103 struct perf_sample sample = { 104 .cpumode = PERF_RECORD_MISC_USER, 105 }; 106 union perf_event fake_mmap_event = { 107 .mmap = { 108 .pid = fake_mmap_info[i].pid, 109 .tid = fake_mmap_info[i].pid, 110 .start = fake_mmap_info[i].start, 111 .len = FAKE_MAP_LENGTH, 112 .pgoff = 0ULL, 113 }, 114 }; 115 116 strcpy(fake_mmap_event.mmap.filename, 117 fake_mmap_info[i].filename); 118 119 machine__process_mmap_event(machine, &fake_mmap_event, &sample); 120 } 121 122 for (i = 0; i < ARRAY_SIZE(fake_symbols); i++) { 123 size_t k; 124 struct dso *dso; 125 126 dso = machine__findnew_dso(machine, fake_symbols[i].dso_name); 127 if (dso == NULL) 128 goto out; 129 130 /* emulate dso__load() */ 131 dso__set_loaded(dso, MAP__FUNCTION); 132 133 for (k = 0; k < fake_symbols[i].nr_syms; k++) { 134 struct symbol *sym; 135 struct fake_sym *fsym = &fake_symbols[i].syms[k]; 136 137 sym = symbol__new(fsym->start, fsym->length, 138 STB_GLOBAL, fsym->name); 139 if (sym == NULL) { 140 dso__put(dso); 141 goto out; 142 } 143 144 symbols__insert(&dso->symbols[MAP__FUNCTION], sym); 145 } 146 147 dso__put(dso); 148 } 149 150 return machine; 151 152 out: 153 pr_debug("Not enough memory for machine setup\n"); 154 machine__delete_threads(machine); 155 return NULL; 156 } 157 158 void print_hists_in(struct hists *hists) 159 { 160 int i = 0; 161 struct rb_root *root; 162 struct rb_node *node; 163 164 if (sort__need_collapse) 165 root = &hists->entries_collapsed; 166 else 167 root = hists->entries_in; 168 169 pr_info("----- %s --------\n", __func__); 170 node = rb_first(root); 171 while (node) { 172 struct hist_entry *he; 173 174 he = rb_entry(node, struct hist_entry, rb_node_in); 175 176 if (!he->filtered) { 177 pr_info("%2d: entry: %-8s [%-8s] %20s: period = %"PRIu64"\n", 178 i, thread__comm_str(he->thread), 179 he->ms.map->dso->short_name, 180 he->ms.sym->name, he->stat.period); 181 } 182 183 i++; 184 node = rb_next(node); 185 } 186 } 187 188 void print_hists_out(struct hists *hists) 189 { 190 int i = 0; 191 struct rb_root *root; 192 struct rb_node *node; 193 194 root = &hists->entries; 195 196 pr_info("----- %s --------\n", __func__); 197 node = rb_first(root); 198 while (node) { 199 struct hist_entry *he; 200 201 he = rb_entry(node, struct hist_entry, rb_node); 202 203 if (!he->filtered) { 204 pr_info("%2d: entry: %8s:%5d [%-8s] %20s: period = %"PRIu64"/%"PRIu64"\n", 205 i, thread__comm_str(he->thread), he->thread->tid, 206 he->ms.map->dso->short_name, 207 he->ms.sym->name, he->stat.period, 208 he->stat_acc ? he->stat_acc->period : 0); 209 } 210 211 i++; 212 node = rb_next(node); 213 } 214 } 215