194b80ffdSSteven Rostedt /* 294b80ffdSSteven Rostedt * unlikely profiler 394b80ffdSSteven Rostedt * 494b80ffdSSteven Rostedt * Copyright (C) 2008 Steven Rostedt <srostedt@redhat.com> 594b80ffdSSteven Rostedt */ 694b80ffdSSteven Rostedt #include <linux/kallsyms.h> 794b80ffdSSteven Rostedt #include <linux/seq_file.h> 894b80ffdSSteven Rostedt #include <linux/spinlock.h> 965c6dc6aSFrederic Weisbecker #include <linux/irqflags.h> 1094b80ffdSSteven Rostedt #include <linux/debugfs.h> 1194b80ffdSSteven Rostedt #include <linux/uaccess.h> 1294b80ffdSSteven Rostedt #include <linux/module.h> 1394b80ffdSSteven Rostedt #include <linux/ftrace.h> 1494b80ffdSSteven Rostedt #include <linux/hash.h> 1594b80ffdSSteven Rostedt #include <linux/fs.h> 1694b80ffdSSteven Rostedt #include <asm/local.h> 17f633cef0SSteven Rostedt 1894b80ffdSSteven Rostedt #include "trace.h" 19002bb86dSFrederic Weisbecker #include "trace_stat.h" 20f633cef0SSteven Rostedt #include "trace_output.h" 2194b80ffdSSteven Rostedt 2294b80ffdSSteven Rostedt #ifdef CONFIG_BRANCH_TRACER 2394b80ffdSSteven Rostedt 24002bb86dSFrederic Weisbecker static struct tracer branch_trace; 2594b80ffdSSteven Rostedt static int branch_tracing_enabled __read_mostly; 2694b80ffdSSteven Rostedt static DEFINE_MUTEX(branch_tracing_mutex); 27e302cf3fSFrederic Weisbecker 2894b80ffdSSteven Rostedt static struct trace_array *branch_tracer; 2994b80ffdSSteven Rostedt 3094b80ffdSSteven Rostedt static void 3194b80ffdSSteven Rostedt probe_likely_condition(struct ftrace_branch_data *f, int val, int expect) 3294b80ffdSSteven Rostedt { 3394b80ffdSSteven Rostedt struct trace_array *tr = branch_tracer; 3494b80ffdSSteven Rostedt struct ring_buffer_event *event; 3594b80ffdSSteven Rostedt struct trace_branch *entry; 360a987751SArnaldo Carvalho de Melo unsigned long flags; 3794b80ffdSSteven Rostedt int cpu, pc; 3894b80ffdSSteven Rostedt const char *p; 3994b80ffdSSteven Rostedt 4094b80ffdSSteven Rostedt /* 4194b80ffdSSteven Rostedt * I would love to save just the ftrace_likely_data pointer, but 4294b80ffdSSteven Rostedt * this code can also be used by modules. Ugly things can happen 4394b80ffdSSteven Rostedt * if the module is unloaded, and then we go and read the 4494b80ffdSSteven Rostedt * pointer. This is slower, but much safer. 4594b80ffdSSteven Rostedt */ 4694b80ffdSSteven Rostedt 4794b80ffdSSteven Rostedt if (unlikely(!tr)) 4894b80ffdSSteven Rostedt return; 4994b80ffdSSteven Rostedt 50a5e25883SSteven Rostedt local_irq_save(flags); 5194b80ffdSSteven Rostedt cpu = raw_smp_processor_id(); 5294b80ffdSSteven Rostedt if (atomic_inc_return(&tr->data[cpu]->disabled) != 1) 5394b80ffdSSteven Rostedt goto out; 5494b80ffdSSteven Rostedt 550a987751SArnaldo Carvalho de Melo event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry)); 5694b80ffdSSteven Rostedt if (!event) 5794b80ffdSSteven Rostedt goto out; 5894b80ffdSSteven Rostedt 5994b80ffdSSteven Rostedt pc = preempt_count(); 6094b80ffdSSteven Rostedt entry = ring_buffer_event_data(event); 6194b80ffdSSteven Rostedt tracing_generic_entry_update(&entry->ent, flags, pc); 6294b80ffdSSteven Rostedt entry->ent.type = TRACE_BRANCH; 6394b80ffdSSteven Rostedt 6494b80ffdSSteven Rostedt /* Strip off the path, only save the file */ 6594b80ffdSSteven Rostedt p = f->file + strlen(f->file); 6694b80ffdSSteven Rostedt while (p >= f->file && *p != '/') 6794b80ffdSSteven Rostedt p--; 6894b80ffdSSteven Rostedt p++; 6994b80ffdSSteven Rostedt 7094b80ffdSSteven Rostedt strncpy(entry->func, f->func, TRACE_FUNC_SIZE); 7194b80ffdSSteven Rostedt strncpy(entry->file, p, TRACE_FILE_SIZE); 7294b80ffdSSteven Rostedt entry->func[TRACE_FUNC_SIZE] = 0; 7394b80ffdSSteven Rostedt entry->file[TRACE_FILE_SIZE] = 0; 7494b80ffdSSteven Rostedt entry->line = f->line; 7594b80ffdSSteven Rostedt entry->correct = val == expect; 7694b80ffdSSteven Rostedt 770a987751SArnaldo Carvalho de Melo ring_buffer_unlock_commit(tr->buffer, event); 7894b80ffdSSteven Rostedt 7994b80ffdSSteven Rostedt out: 8094b80ffdSSteven Rostedt atomic_dec(&tr->data[cpu]->disabled); 81a5e25883SSteven Rostedt local_irq_restore(flags); 8294b80ffdSSteven Rostedt } 8394b80ffdSSteven Rostedt 8494b80ffdSSteven Rostedt static inline 8594b80ffdSSteven Rostedt void trace_likely_condition(struct ftrace_branch_data *f, int val, int expect) 8694b80ffdSSteven Rostedt { 8794b80ffdSSteven Rostedt if (!branch_tracing_enabled) 8894b80ffdSSteven Rostedt return; 8994b80ffdSSteven Rostedt 9094b80ffdSSteven Rostedt probe_likely_condition(f, val, expect); 9194b80ffdSSteven Rostedt } 9294b80ffdSSteven Rostedt 9394b80ffdSSteven Rostedt int enable_branch_tracing(struct trace_array *tr) 9494b80ffdSSteven Rostedt { 9594b80ffdSSteven Rostedt int ret = 0; 9694b80ffdSSteven Rostedt 9794b80ffdSSteven Rostedt mutex_lock(&branch_tracing_mutex); 9894b80ffdSSteven Rostedt branch_tracer = tr; 9994b80ffdSSteven Rostedt /* 10094b80ffdSSteven Rostedt * Must be seen before enabling. The reader is a condition 10194b80ffdSSteven Rostedt * where we do not need a matching rmb() 10294b80ffdSSteven Rostedt */ 10394b80ffdSSteven Rostedt smp_wmb(); 10494b80ffdSSteven Rostedt branch_tracing_enabled++; 10594b80ffdSSteven Rostedt mutex_unlock(&branch_tracing_mutex); 10694b80ffdSSteven Rostedt 10794b80ffdSSteven Rostedt return ret; 10894b80ffdSSteven Rostedt } 10994b80ffdSSteven Rostedt 11094b80ffdSSteven Rostedt void disable_branch_tracing(void) 11194b80ffdSSteven Rostedt { 11294b80ffdSSteven Rostedt mutex_lock(&branch_tracing_mutex); 11394b80ffdSSteven Rostedt 11494b80ffdSSteven Rostedt if (!branch_tracing_enabled) 11594b80ffdSSteven Rostedt goto out_unlock; 11694b80ffdSSteven Rostedt 11794b80ffdSSteven Rostedt branch_tracing_enabled--; 11894b80ffdSSteven Rostedt 11994b80ffdSSteven Rostedt out_unlock: 12094b80ffdSSteven Rostedt mutex_unlock(&branch_tracing_mutex); 12194b80ffdSSteven Rostedt } 12294b80ffdSSteven Rostedt 12394b80ffdSSteven Rostedt static void start_branch_trace(struct trace_array *tr) 12494b80ffdSSteven Rostedt { 12594b80ffdSSteven Rostedt enable_branch_tracing(tr); 12694b80ffdSSteven Rostedt } 12794b80ffdSSteven Rostedt 12894b80ffdSSteven Rostedt static void stop_branch_trace(struct trace_array *tr) 12994b80ffdSSteven Rostedt { 13094b80ffdSSteven Rostedt disable_branch_tracing(); 13194b80ffdSSteven Rostedt } 13294b80ffdSSteven Rostedt 1331c80025aSFrederic Weisbecker static int branch_trace_init(struct trace_array *tr) 13494b80ffdSSteven Rostedt { 135f04109bfSArnaldo Carvalho de Melo tracing_reset_online_cpus(tr); 13694b80ffdSSteven Rostedt start_branch_trace(tr); 1371c80025aSFrederic Weisbecker return 0; 13894b80ffdSSteven Rostedt } 13994b80ffdSSteven Rostedt 14094b80ffdSSteven Rostedt static void branch_trace_reset(struct trace_array *tr) 14194b80ffdSSteven Rostedt { 14294b80ffdSSteven Rostedt stop_branch_trace(tr); 14394b80ffdSSteven Rostedt } 14494b80ffdSSteven Rostedt 145ae7462b4SArnaldo Carvalho de Melo static enum print_line_t trace_branch_print(struct trace_iterator *iter, 146ae7462b4SArnaldo Carvalho de Melo int flags) 147f633cef0SSteven Rostedt { 148f633cef0SSteven Rostedt struct trace_branch *field; 149f633cef0SSteven Rostedt 1502c9b238eSArnaldo Carvalho de Melo trace_assign_type(field, iter->ent); 151f633cef0SSteven Rostedt 1522c9b238eSArnaldo Carvalho de Melo if (trace_seq_printf(&iter->seq, "[%s] %s:%s:%d\n", 153f633cef0SSteven Rostedt field->correct ? " ok " : " MISS ", 154f633cef0SSteven Rostedt field->func, 155f633cef0SSteven Rostedt field->file, 156f633cef0SSteven Rostedt field->line)) 157f633cef0SSteven Rostedt return TRACE_TYPE_PARTIAL_LINE; 158f633cef0SSteven Rostedt 159d9793bd8SArnaldo Carvalho de Melo return TRACE_TYPE_HANDLED; 160f633cef0SSteven Rostedt } 161f633cef0SSteven Rostedt 162e302cf3fSFrederic Weisbecker 163f633cef0SSteven Rostedt static struct trace_event trace_branch_event = { 164f633cef0SSteven Rostedt .type = TRACE_BRANCH, 165f633cef0SSteven Rostedt .trace = trace_branch_print, 166f633cef0SSteven Rostedt .latency_trace = trace_branch_print, 167f633cef0SSteven Rostedt }; 168f633cef0SSteven Rostedt 169002bb86dSFrederic Weisbecker static struct tracer branch_trace __read_mostly = 170002bb86dSFrederic Weisbecker { 171002bb86dSFrederic Weisbecker .name = "branch", 172002bb86dSFrederic Weisbecker .init = branch_trace_init, 173002bb86dSFrederic Weisbecker .reset = branch_trace_reset, 174002bb86dSFrederic Weisbecker #ifdef CONFIG_FTRACE_SELFTEST 175002bb86dSFrederic Weisbecker .selftest = trace_selftest_startup_branch, 176002bb86dSFrederic Weisbecker #endif /* CONFIG_FTRACE_SELFTEST */ 177002bb86dSFrederic Weisbecker }; 178002bb86dSFrederic Weisbecker 179002bb86dSFrederic Weisbecker __init static int init_branch_tracer(void) 180002bb86dSFrederic Weisbecker { 181002bb86dSFrederic Weisbecker int ret; 182002bb86dSFrederic Weisbecker 183002bb86dSFrederic Weisbecker ret = register_ftrace_event(&trace_branch_event); 184002bb86dSFrederic Weisbecker if (!ret) { 185002bb86dSFrederic Weisbecker printk(KERN_WARNING "Warning: could not register " 186002bb86dSFrederic Weisbecker "branch events\n"); 187002bb86dSFrederic Weisbecker return 1; 188002bb86dSFrederic Weisbecker } 189002bb86dSFrederic Weisbecker return register_tracer(&branch_trace); 190002bb86dSFrederic Weisbecker } 191002bb86dSFrederic Weisbecker device_initcall(init_branch_tracer); 192002bb86dSFrederic Weisbecker 19394b80ffdSSteven Rostedt #else 19494b80ffdSSteven Rostedt static inline 19594b80ffdSSteven Rostedt void trace_likely_condition(struct ftrace_branch_data *f, int val, int expect) 19694b80ffdSSteven Rostedt { 19794b80ffdSSteven Rostedt } 19894b80ffdSSteven Rostedt #endif /* CONFIG_BRANCH_TRACER */ 19994b80ffdSSteven Rostedt 20094b80ffdSSteven Rostedt void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect) 20194b80ffdSSteven Rostedt { 20294b80ffdSSteven Rostedt /* 20394b80ffdSSteven Rostedt * I would love to have a trace point here instead, but the 20494b80ffdSSteven Rostedt * trace point code is so inundated with unlikely and likely 20594b80ffdSSteven Rostedt * conditions that the recursive nightmare that exists is too 20694b80ffdSSteven Rostedt * much to try to get working. At least for now. 20794b80ffdSSteven Rostedt */ 20894b80ffdSSteven Rostedt trace_likely_condition(f, val, expect); 20994b80ffdSSteven Rostedt 21094b80ffdSSteven Rostedt /* FIXME: Make this atomic! */ 21194b80ffdSSteven Rostedt if (val == expect) 21294b80ffdSSteven Rostedt f->correct++; 21394b80ffdSSteven Rostedt else 21494b80ffdSSteven Rostedt f->incorrect++; 21594b80ffdSSteven Rostedt } 21694b80ffdSSteven Rostedt EXPORT_SYMBOL(ftrace_likely_update); 21794b80ffdSSteven Rostedt 218e302cf3fSFrederic Weisbecker extern unsigned long __start_annotated_branch_profile[]; 219e302cf3fSFrederic Weisbecker extern unsigned long __stop_annotated_branch_profile[]; 22094b80ffdSSteven Rostedt 221e302cf3fSFrederic Weisbecker static int annotated_branch_stat_headers(struct seq_file *m) 22294b80ffdSSteven Rostedt { 2232bcd521aSSteven Rostedt seq_printf(m, " correct incorrect %% "); 2242bcd521aSSteven Rostedt seq_printf(m, " Function " 22594b80ffdSSteven Rostedt " File Line\n" 22694b80ffdSSteven Rostedt " ------- --------- - " 22794b80ffdSSteven Rostedt " -------- " 22894b80ffdSSteven Rostedt " ---- ----\n"); 22994b80ffdSSteven Rostedt return 0; 23094b80ffdSSteven Rostedt } 23194b80ffdSSteven Rostedt 232e302cf3fSFrederic Weisbecker static inline long get_incorrect_percent(struct ftrace_branch_data *p) 233e302cf3fSFrederic Weisbecker { 234e302cf3fSFrederic Weisbecker long percent; 235e302cf3fSFrederic Weisbecker 236e302cf3fSFrederic Weisbecker if (p->correct) { 237e302cf3fSFrederic Weisbecker percent = p->incorrect * 100; 238e302cf3fSFrederic Weisbecker percent /= p->correct + p->incorrect; 239e302cf3fSFrederic Weisbecker } else 240e302cf3fSFrederic Weisbecker percent = p->incorrect ? 100 : -1; 241e302cf3fSFrederic Weisbecker 242e302cf3fSFrederic Weisbecker return percent; 243e302cf3fSFrederic Weisbecker } 244e302cf3fSFrederic Weisbecker 245e302cf3fSFrederic Weisbecker static int branch_stat_show(struct seq_file *m, void *v) 246e302cf3fSFrederic Weisbecker { 247e302cf3fSFrederic Weisbecker struct ftrace_branch_data *p = v; 248e302cf3fSFrederic Weisbecker const char *f; 249e302cf3fSFrederic Weisbecker long percent; 250e302cf3fSFrederic Weisbecker 25194b80ffdSSteven Rostedt /* Only print the file, not the path */ 25294b80ffdSSteven Rostedt f = p->file + strlen(p->file); 25394b80ffdSSteven Rostedt while (f >= p->file && *f != '/') 25494b80ffdSSteven Rostedt f--; 25594b80ffdSSteven Rostedt f++; 25694b80ffdSSteven Rostedt 2572bcd521aSSteven Rostedt /* 2582bcd521aSSteven Rostedt * The miss is overlayed on correct, and hit on incorrect. 2592bcd521aSSteven Rostedt */ 260e302cf3fSFrederic Weisbecker percent = get_incorrect_percent(p); 26194b80ffdSSteven Rostedt 262bac28bfeSSteven Rostedt seq_printf(m, "%8lu %8lu ", p->correct, p->incorrect); 263bac28bfeSSteven Rostedt if (percent < 0) 264bac28bfeSSteven Rostedt seq_printf(m, " X "); 265bac28bfeSSteven Rostedt else 266bac28bfeSSteven Rostedt seq_printf(m, "%3ld ", percent); 26794b80ffdSSteven Rostedt seq_printf(m, "%-30.30s %-20.20s %d\n", p->func, f, p->line); 26894b80ffdSSteven Rostedt return 0; 26994b80ffdSSteven Rostedt } 27094b80ffdSSteven Rostedt 271e302cf3fSFrederic Weisbecker static void *annotated_branch_stat_start(void) 27294b80ffdSSteven Rostedt { 273e302cf3fSFrederic Weisbecker return __start_annotated_branch_profile; 27494b80ffdSSteven Rostedt } 27594b80ffdSSteven Rostedt 276e302cf3fSFrederic Weisbecker static void * 277e302cf3fSFrederic Weisbecker annotated_branch_stat_next(void *v, int idx) 278e302cf3fSFrederic Weisbecker { 279e302cf3fSFrederic Weisbecker struct ftrace_branch_data *p = v; 280e302cf3fSFrederic Weisbecker 281e302cf3fSFrederic Weisbecker ++p; 282e302cf3fSFrederic Weisbecker 283e302cf3fSFrederic Weisbecker if ((void *)p >= (void *)__stop_annotated_branch_profile) 284e302cf3fSFrederic Weisbecker return NULL; 285e302cf3fSFrederic Weisbecker 286e302cf3fSFrederic Weisbecker return p; 28794b80ffdSSteven Rostedt } 28894b80ffdSSteven Rostedt 289e302cf3fSFrederic Weisbecker static int annotated_branch_stat_cmp(void *p1, void *p2) 29094b80ffdSSteven Rostedt { 291e302cf3fSFrederic Weisbecker struct ftrace_branch_data *a = p1; 292e302cf3fSFrederic Weisbecker struct ftrace_branch_data *b = p2; 29394b80ffdSSteven Rostedt 294e302cf3fSFrederic Weisbecker long percent_a, percent_b; 29594b80ffdSSteven Rostedt 296e302cf3fSFrederic Weisbecker percent_a = get_incorrect_percent(a); 297e302cf3fSFrederic Weisbecker percent_b = get_incorrect_percent(b); 29894b80ffdSSteven Rostedt 299e302cf3fSFrederic Weisbecker if (percent_a < percent_b) 300e302cf3fSFrederic Weisbecker return -1; 301e302cf3fSFrederic Weisbecker if (percent_a > percent_b) 302e302cf3fSFrederic Weisbecker return 1; 303e302cf3fSFrederic Weisbecker else 30494b80ffdSSteven Rostedt return 0; 30594b80ffdSSteven Rostedt } 30694b80ffdSSteven Rostedt 307002bb86dSFrederic Weisbecker static struct tracer_stat annotated_branch_stats = { 308002bb86dSFrederic Weisbecker .name = "branch_annotated", 309002bb86dSFrederic Weisbecker .stat_start = annotated_branch_stat_start, 310002bb86dSFrederic Weisbecker .stat_next = annotated_branch_stat_next, 311002bb86dSFrederic Weisbecker .stat_cmp = annotated_branch_stat_cmp, 312002bb86dSFrederic Weisbecker .stat_headers = annotated_branch_stat_headers, 313002bb86dSFrederic Weisbecker .stat_show = branch_stat_show 314002bb86dSFrederic Weisbecker }; 315002bb86dSFrederic Weisbecker 316002bb86dSFrederic Weisbecker __init static int init_annotated_branch_stats(void) 317002bb86dSFrederic Weisbecker { 318002bb86dSFrederic Weisbecker int ret; 319002bb86dSFrederic Weisbecker 320002bb86dSFrederic Weisbecker ret = register_stat_tracer(&annotated_branch_stats); 321002bb86dSFrederic Weisbecker if (!ret) { 322002bb86dSFrederic Weisbecker printk(KERN_WARNING "Warning: could not register " 323002bb86dSFrederic Weisbecker "annotated branches stats\n"); 324002bb86dSFrederic Weisbecker return 1; 325002bb86dSFrederic Weisbecker } 326002bb86dSFrederic Weisbecker return 0; 327002bb86dSFrederic Weisbecker } 328002bb86dSFrederic Weisbecker fs_initcall(init_annotated_branch_stats); 329002bb86dSFrederic Weisbecker 330e302cf3fSFrederic Weisbecker #ifdef CONFIG_PROFILE_ALL_BRANCHES 331e302cf3fSFrederic Weisbecker 332e302cf3fSFrederic Weisbecker extern unsigned long __start_branch_profile[]; 333e302cf3fSFrederic Weisbecker extern unsigned long __stop_branch_profile[]; 334e302cf3fSFrederic Weisbecker 335e302cf3fSFrederic Weisbecker static int all_branch_stat_headers(struct seq_file *m) 336e302cf3fSFrederic Weisbecker { 337e302cf3fSFrederic Weisbecker seq_printf(m, " miss hit %% "); 338e302cf3fSFrederic Weisbecker seq_printf(m, " Function " 339e302cf3fSFrederic Weisbecker " File Line\n" 340e302cf3fSFrederic Weisbecker " ------- --------- - " 341e302cf3fSFrederic Weisbecker " -------- " 342e302cf3fSFrederic Weisbecker " ---- ----\n"); 343e302cf3fSFrederic Weisbecker return 0; 344e302cf3fSFrederic Weisbecker } 345e302cf3fSFrederic Weisbecker 346e302cf3fSFrederic Weisbecker static void *all_branch_stat_start(void) 347e302cf3fSFrederic Weisbecker { 348e302cf3fSFrederic Weisbecker return __start_branch_profile; 349e302cf3fSFrederic Weisbecker } 350e302cf3fSFrederic Weisbecker 351e302cf3fSFrederic Weisbecker static void * 352e302cf3fSFrederic Weisbecker all_branch_stat_next(void *v, int idx) 353e302cf3fSFrederic Weisbecker { 354e302cf3fSFrederic Weisbecker struct ftrace_branch_data *p = v; 355e302cf3fSFrederic Weisbecker 356e302cf3fSFrederic Weisbecker ++p; 357e302cf3fSFrederic Weisbecker 358e302cf3fSFrederic Weisbecker if ((void *)p >= (void *)__stop_branch_profile) 359e302cf3fSFrederic Weisbecker return NULL; 360e302cf3fSFrederic Weisbecker 361e302cf3fSFrederic Weisbecker return p; 362e302cf3fSFrederic Weisbecker } 363e302cf3fSFrederic Weisbecker 364002bb86dSFrederic Weisbecker static struct tracer_stat all_branch_stats = { 365002bb86dSFrederic Weisbecker .name = "branch_all", 366034939b6SFrederic Weisbecker .stat_start = all_branch_stat_start, 367034939b6SFrederic Weisbecker .stat_next = all_branch_stat_next, 368034939b6SFrederic Weisbecker .stat_headers = all_branch_stat_headers, 369002bb86dSFrederic Weisbecker .stat_show = branch_stat_show 370034939b6SFrederic Weisbecker }; 371034939b6SFrederic Weisbecker 372002bb86dSFrederic Weisbecker __init static int all_annotated_branch_stats(void) 373e302cf3fSFrederic Weisbecker { 374e302cf3fSFrederic Weisbecker int ret; 375002bb86dSFrederic Weisbecker 376002bb86dSFrederic Weisbecker ret = register_stat_tracer(&all_branch_stats); 377e302cf3fSFrederic Weisbecker if (!ret) { 378002bb86dSFrederic Weisbecker printk(KERN_WARNING "Warning: could not register " 379002bb86dSFrederic Weisbecker "all branches stats\n"); 380e302cf3fSFrederic Weisbecker return 1; 381e302cf3fSFrederic Weisbecker } 382002bb86dSFrederic Weisbecker return 0; 383e302cf3fSFrederic Weisbecker } 384002bb86dSFrederic Weisbecker fs_initcall(all_annotated_branch_stats); 385002bb86dSFrederic Weisbecker #endif /* CONFIG_PROFILE_ALL_BRANCHES */ 386