diff options
Diffstat (limited to 'kernel/tools/perf/builtin-script.c')
| -rw-r--r-- | kernel/tools/perf/builtin-script.c | 309 |
1 files changed, 275 insertions, 34 deletions
diff --git a/kernel/tools/perf/builtin-script.c b/kernel/tools/perf/builtin-script.c index 58f10b8e6..72b5deb4b 100644 --- a/kernel/tools/perf/builtin-script.c +++ b/kernel/tools/perf/builtin-script.c @@ -6,6 +6,7 @@ #include "util/exec_cmd.h" #include "util/header.h" #include "util/parse-options.h" +#include "util/perf_regs.h" #include "util/session.h" #include "util/tool.h" #include "util/symbol.h" @@ -16,6 +17,7 @@ #include "util/evsel.h" #include "util/sort.h" #include "util/data.h" +#include "util/auxtrace.h" #include <linux/bitmap.h> static char const *script_name; @@ -26,9 +28,13 @@ static u64 nr_unordered; static bool no_callchain; static bool latency_format; static bool system_wide; +static bool print_flags; +static bool nanosecs; static const char *cpu_list; static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); +unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH; + enum perf_output_field { PERF_OUTPUT_COMM = 1U << 0, PERF_OUTPUT_TID = 1U << 1, @@ -44,6 +50,9 @@ enum perf_output_field { PERF_OUTPUT_SYMOFFSET = 1U << 11, PERF_OUTPUT_SRCLINE = 1U << 12, PERF_OUTPUT_PERIOD = 1U << 13, + PERF_OUTPUT_IREGS = 1U << 14, + PERF_OUTPUT_BRSTACK = 1U << 15, + PERF_OUTPUT_BRSTACKSYM = 1U << 16, }; struct output_option { @@ -64,6 +73,9 @@ struct output_option { {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET}, {.str = "srcline", .field = PERF_OUTPUT_SRCLINE}, {.str = "period", .field = PERF_OUTPUT_PERIOD}, + {.str = "iregs", .field = PERF_OUTPUT_IREGS}, + {.str = "brstack", .field = PERF_OUTPUT_BRSTACK}, + {.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM}, }; /* default set to maintain compatibility with current format */ @@ -146,9 +158,10 @@ static const char *output_field2str(enum perf_output_field field) #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) -static int perf_evsel__check_stype(struct perf_evsel *evsel, - u64 sample_type, const char *sample_msg, - enum perf_output_field field) +static int perf_evsel__do_check_stype(struct perf_evsel *evsel, + u64 sample_type, const char *sample_msg, + enum perf_output_field field, + bool allow_user_set) { struct perf_event_attr *attr = &evsel->attr; int type = attr->type; @@ -158,6 +171,8 @@ static int perf_evsel__check_stype(struct perf_evsel *evsel, return 0; if (output[type].user_set) { + if (allow_user_set) + return 0; evname = perf_evsel__name(evsel); pr_err("Samples for '%s' event do not have %s attribute set. " "Cannot print '%s' field.\n", @@ -175,10 +190,22 @@ static int perf_evsel__check_stype(struct perf_evsel *evsel, return 0; } +static int perf_evsel__check_stype(struct perf_evsel *evsel, + u64 sample_type, const char *sample_msg, + enum perf_output_field field) +{ + return perf_evsel__do_check_stype(evsel, sample_type, sample_msg, field, + false); +} + static int perf_evsel__check_attr(struct perf_evsel *evsel, struct perf_session *session) { struct perf_event_attr *attr = &evsel->attr; + bool allow_user_set; + + allow_user_set = perf_header__has_feat(&session->header, + HEADER_AUXTRACE); if (PRINT_FIELD(TRACE) && !perf_session__has_traces(session, "record -R")) @@ -191,8 +218,8 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel, } if (PRINT_FIELD(ADDR) && - perf_evsel__check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", - PERF_OUTPUT_ADDR)) + perf_evsel__do_check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", + PERF_OUTPUT_ADDR, allow_user_set)) return -EINVAL; if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { @@ -229,8 +256,8 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel, return -EINVAL; if (PRINT_FIELD(CPU) && - perf_evsel__check_stype(evsel, PERF_SAMPLE_CPU, "CPU", - PERF_OUTPUT_CPU)) + perf_evsel__do_check_stype(evsel, PERF_SAMPLE_CPU, "CPU", + PERF_OUTPUT_CPU, allow_user_set)) return -EINVAL; if (PRINT_FIELD(PERIOD) && @@ -238,6 +265,11 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel, PERF_OUTPUT_PERIOD)) return -EINVAL; + if (PRINT_FIELD(IREGS) && + perf_evsel__check_stype(evsel, PERF_SAMPLE_REGS_INTR, "IREGS", + PERF_OUTPUT_IREGS)) + return -EINVAL; + return 0; } @@ -335,6 +367,24 @@ out: return 0; } +static void print_sample_iregs(union perf_event *event __maybe_unused, + struct perf_sample *sample, + struct thread *thread __maybe_unused, + struct perf_event_attr *attr) +{ + struct regs_dump *regs = &sample->intr_regs; + uint64_t mask = attr->sample_regs_intr; + unsigned i = 0, r; + + if (!regs) + return; + + for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) { + u64 val = regs->regs[i++]; + printf("%5s:0x%"PRIx64" ", perf_reg_name(r), val); + } +} + static void print_sample_start(struct perf_sample *sample, struct thread *thread, struct perf_evsel *evsel) @@ -372,10 +422,84 @@ static void print_sample_start(struct perf_sample *sample, secs = nsecs / NSECS_PER_SEC; nsecs -= secs * NSECS_PER_SEC; usecs = nsecs / NSECS_PER_USEC; - printf("%5lu.%06lu: ", secs, usecs); + if (nanosecs) + printf("%5lu.%09llu: ", secs, nsecs); + else + printf("%5lu.%06lu: ", secs, usecs); + } +} + +static inline char +mispred_str(struct branch_entry *br) +{ + if (!(br->flags.mispred || br->flags.predicted)) + return '-'; + + return br->flags.predicted ? 'P' : 'M'; +} + +static void print_sample_brstack(union perf_event *event __maybe_unused, + struct perf_sample *sample, + struct thread *thread __maybe_unused, + struct perf_event_attr *attr __maybe_unused) +{ + struct branch_stack *br = sample->branch_stack; + u64 i; + + if (!(br && br->nr)) + return; + + for (i = 0; i < br->nr; i++) { + printf(" 0x%"PRIx64"/0x%"PRIx64"/%c/%c/%c/%d ", + br->entries[i].from, + br->entries[i].to, + mispred_str( br->entries + i), + br->entries[i].flags.in_tx? 'X' : '-', + br->entries[i].flags.abort? 'A' : '-', + br->entries[i].flags.cycles); } } +static void print_sample_brstacksym(union perf_event *event __maybe_unused, + struct perf_sample *sample, + struct thread *thread __maybe_unused, + struct perf_event_attr *attr __maybe_unused) +{ + struct branch_stack *br = sample->branch_stack; + struct addr_location alf, alt; + u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + u64 i, from, to; + + if (!(br && br->nr)) + return; + + for (i = 0; i < br->nr; i++) { + + memset(&alf, 0, sizeof(alf)); + memset(&alt, 0, sizeof(alt)); + from = br->entries[i].from; + to = br->entries[i].to; + + thread__find_addr_map(thread, cpumode, MAP__FUNCTION, from, &alf); + if (alf.map) + alf.sym = map__find_symbol(alf.map, alf.addr, NULL); + + thread__find_addr_map(thread, cpumode, MAP__FUNCTION, to, &alt); + if (alt.map) + alt.sym = map__find_symbol(alt.map, alt.addr, NULL); + + symbol__fprintf_symname_offs(alf.sym, &alf, stdout); + putchar('/'); + symbol__fprintf_symname_offs(alt.sym, &alt, stdout); + printf("/%c/%c/%c/%d ", + mispred_str( br->entries + i), + br->entries[i].flags.in_tx? 'X' : '-', + br->entries[i].flags.abort? 'A' : '-', + br->entries[i].flags.cycles); + } +} + + static void print_sample_addr(union perf_event *event, struct perf_sample *sample, struct thread *thread, @@ -428,7 +552,7 @@ static void print_sample_bts(union perf_event *event, } } perf_evsel__print_ip(evsel, sample, al, print_opts, - PERF_MAX_STACK_DEPTH); + scripting_max_stack); } /* print branch_to information */ @@ -445,6 +569,25 @@ static void print_sample_bts(union perf_event *event, printf("\n"); } +static void print_sample_flags(u32 flags) +{ + const char *chars = PERF_IP_FLAG_CHARS; + const int n = strlen(PERF_IP_FLAG_CHARS); + char str[33]; + int i, pos = 0; + + for (i = 0; i < n; i++, flags >>= 1) { + if (flags & 1) + str[pos++] = chars[i]; + } + for (; i < 32; i++, flags >>= 1) { + if (flags & 1) + str[pos++] = '?'; + } + str[pos] = 0; + printf(" %-4s ", str); +} + static void process_event(union perf_event *event, struct perf_sample *sample, struct perf_evsel *evsel, struct addr_location *al) { @@ -464,6 +607,9 @@ static void process_event(union perf_event *event, struct perf_sample *sample, printf("%s: ", evname ? evname : "[unknown]"); } + if (print_flags) + print_sample_flags(sample->flags); + if (is_bts_event(attr)) { print_sample_bts(event, sample, evsel, thread, al); return; @@ -483,9 +629,17 @@ static void process_event(union perf_event *event, struct perf_sample *sample, perf_evsel__print_ip(evsel, sample, al, output[attr->type].print_ip_opts, - PERF_MAX_STACK_DEPTH); + scripting_max_stack); } + if (PRINT_FIELD(IREGS)) + print_sample_iregs(event, sample, thread, attr); + + if (PRINT_FIELD(BRSTACK)) + print_sample_brstack(event, sample, thread, attr); + else if (PRINT_FIELD(BRSTACKSYM)) + print_sample_brstacksym(event, sample, thread, attr); + printf("\n"); } @@ -568,13 +722,14 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused, } if (al.filtered) - return 0; + goto out_put; if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) - return 0; + goto out_put; scripting_ops->process_event(event, sample, evsel, &al); - +out_put: + addr_location__put(&al); return 0; } @@ -583,6 +738,7 @@ struct perf_script { struct perf_session *session; bool show_task_events; bool show_mmap_events; + bool show_switch_events; }; static int process_attr(struct perf_tool *tool, union perf_event *event, @@ -610,7 +766,10 @@ static int process_attr(struct perf_tool *tool, union perf_event *event, set_print_ip_opts(&evsel->attr); - return perf_evsel__check_attr(evsel, scr->session); + if (evsel->attr.sample_type) + err = perf_evsel__check_attr(evsel, scr->session); + + return err; } static int process_comm_event(struct perf_tool *tool, @@ -621,7 +780,7 @@ static int process_comm_event(struct perf_tool *tool, struct thread *thread; struct perf_script *script = container_of(tool, struct perf_script, tool); struct perf_session *session = script->session; - struct perf_evsel *evsel = perf_evlist__first(session->evlist); + struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); int ret = -1; thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid); @@ -642,8 +801,8 @@ static int process_comm_event(struct perf_tool *tool, print_sample_start(sample, thread, evsel); perf_event__fprintf(event, stdout); ret = 0; - out: + thread__put(thread); return ret; } @@ -655,7 +814,7 @@ static int process_fork_event(struct perf_tool *tool, struct thread *thread; struct perf_script *script = container_of(tool, struct perf_script, tool); struct perf_session *session = script->session; - struct perf_evsel *evsel = perf_evlist__first(session->evlist); + struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); if (perf_event__process_fork(tool, event, sample, machine) < 0) return -1; @@ -674,6 +833,7 @@ static int process_fork_event(struct perf_tool *tool, } print_sample_start(sample, thread, evsel); perf_event__fprintf(event, stdout); + thread__put(thread); return 0; } @@ -682,10 +842,11 @@ static int process_exit_event(struct perf_tool *tool, struct perf_sample *sample, struct machine *machine) { + int err = 0; struct thread *thread; struct perf_script *script = container_of(tool, struct perf_script, tool); struct perf_session *session = script->session; - struct perf_evsel *evsel = perf_evlist__first(session->evlist); + struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); if (thread == NULL) { @@ -696,16 +857,17 @@ static int process_exit_event(struct perf_tool *tool, if (!evsel->attr.sample_id_all) { sample->cpu = 0; sample->time = 0; - sample->tid = event->comm.tid; - sample->pid = event->comm.pid; + sample->tid = event->fork.tid; + sample->pid = event->fork.pid; } print_sample_start(sample, thread, evsel); perf_event__fprintf(event, stdout); if (perf_event__process_exit(tool, event, sample, machine) < 0) - return -1; + err = -1; - return 0; + thread__put(thread); + return err; } static int process_mmap_event(struct perf_tool *tool, @@ -716,7 +878,7 @@ static int process_mmap_event(struct perf_tool *tool, struct thread *thread; struct perf_script *script = container_of(tool, struct perf_script, tool); struct perf_session *session = script->session; - struct perf_evsel *evsel = perf_evlist__first(session->evlist); + struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); if (perf_event__process_mmap(tool, event, sample, machine) < 0) return -1; @@ -735,7 +897,7 @@ static int process_mmap_event(struct perf_tool *tool, } print_sample_start(sample, thread, evsel); perf_event__fprintf(event, stdout); - + thread__put(thread); return 0; } @@ -747,7 +909,7 @@ static int process_mmap2_event(struct perf_tool *tool, struct thread *thread; struct perf_script *script = container_of(tool, struct perf_script, tool); struct perf_session *session = script->session; - struct perf_evsel *evsel = perf_evlist__first(session->evlist); + struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); if (perf_event__process_mmap2(tool, event, sample, machine) < 0) return -1; @@ -766,7 +928,33 @@ static int process_mmap2_event(struct perf_tool *tool, } print_sample_start(sample, thread, evsel); perf_event__fprintf(event, stdout); + thread__put(thread); + return 0; +} + +static int process_switch_event(struct perf_tool *tool, + union perf_event *event, + struct perf_sample *sample, + struct machine *machine) +{ + struct thread *thread; + struct perf_script *script = container_of(tool, struct perf_script, tool); + struct perf_session *session = script->session; + struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); + + if (perf_event__process_switch(tool, event, sample, machine) < 0) + return -1; + thread = machine__findnew_thread(machine, sample->pid, + sample->tid); + if (thread == NULL) { + pr_debug("problem processing SWITCH event, skipping it.\n"); + return -1; + } + + print_sample_start(sample, thread, evsel); + perf_event__fprintf(event, stdout); + thread__put(thread); return 0; } @@ -791,6 +979,8 @@ static int __cmd_script(struct perf_script *script) script->tool.mmap = process_mmap_event; script->tool.mmap2 = process_mmap2_event; } + if (script->show_switch_events) + script->tool.context_switch = process_switch_event; ret = perf_session__process_events(script->session); @@ -999,12 +1189,15 @@ static int parse_output_fields(const struct option *opt __maybe_unused, } } - tok = strtok(tok, ","); - while (tok) { + for (tok = strtok(tok, ","); tok; tok = strtok(NULL, ",")) { for (i = 0; i < imax; ++i) { if (strcmp(tok, all_output_options[i].str) == 0) break; } + if (i == imax && strcmp(tok, "flags") == 0) { + print_flags = true; + continue; + } if (i == imax) { fprintf(stderr, "Invalid field requested.\n"); rc = -EINVAL; @@ -1032,8 +1225,6 @@ static int parse_output_fields(const struct option *opt __maybe_unused, } output[type].fields |= all_output_options[i].field; } - - tok = strtok(NULL, ","); } if (type >= 0) { @@ -1488,6 +1679,22 @@ static int have_cmd(int argc, const char **argv) return 0; } +static void script__setup_sample_type(struct perf_script *script) +{ + struct perf_session *session = script->session; + u64 sample_type = perf_evlist__combined_sample_type(session->evlist); + + if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) { + if ((sample_type & PERF_SAMPLE_REGS_USER) && + (sample_type & PERF_SAMPLE_STACK_USER)) + callchain_param.record_mode = CALLCHAIN_DWARF; + else if (sample_type & PERF_SAMPLE_BRANCH_STACK) + callchain_param.record_mode = CALLCHAIN_LBR; + else + callchain_param.record_mode = CALLCHAIN_FP; + } +} + int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) { bool show_full_info = false; @@ -1497,6 +1704,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) char *rec_script_path = NULL; char *rep_script_path = NULL; struct perf_session *session; + struct itrace_synth_opts itrace_synth_opts = { .set = false, }; char *script_path = NULL; const char **__argv; int i, j, err = 0; @@ -1511,6 +1719,10 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) .attr = process_attr, .tracing_data = perf_event__process_tracing_data, .build_id = perf_event__process_build_id, + .id_index = perf_event__process_id_index, + .auxtrace_info = perf_event__process_auxtrace_info, + .auxtrace = perf_event__process_auxtrace, + .auxtrace_error = perf_event__process_auxtrace_error, .ordered_events = true, .ordering_requires_timestamps = true, }, @@ -1549,7 +1761,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) "comma separated output fields prepend with 'type:'. " "Valid types: hw,sw,trace,raw. " "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," - "addr,symoff,period", parse_output_fields), + "addr,symoff,period,iregs,brstack,brstacksym,flags", parse_output_fields), OPT_BOOLEAN('a', "all-cpus", &system_wide, "system-wide collection from all CPUs"), OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", @@ -1569,7 +1781,21 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) "Show the fork/comm/exit events"), OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events, "Show the mmap events"), + OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events, + "Show context switch events (if recorded)"), OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), + OPT_BOOLEAN(0, "ns", &nanosecs, + "Use 9 decimal places when displaying time"), + OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", + "Instruction Tracing options", + itrace_parse_synth_opts), + OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename, + "Show full source file name path for source lines"), + OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, + "Enable symbol demangling"), + OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, + "Enable kernel symbol demangling"), + OPT_END() }; const char * const script_subcommands[] = { "record", "report", NULL }; @@ -1605,6 +1831,10 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) } } + if (itrace_synth_opts.callchain && + itrace_synth_opts.callchain_sz > scripting_max_stack) + scripting_max_stack = itrace_synth_opts.callchain_sz; + /* make sure PERF_EXEC_PATH is set for scripts */ perf_set_argv_exec_path(perf_exec_path()); @@ -1617,9 +1847,9 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) rep_script_path = get_script_path(argv[0], REPORT_SUFFIX); if (!rec_script_path && !rep_script_path) { - fprintf(stderr, " Couldn't find script %s\n\n See perf" + usage_with_options_msg(script_usage, options, + "Couldn't find script `%s'\n\n See perf" " script -l for available scripts.\n", argv[0]); - usage_with_options(script_usage, options); } if (is_top_script(argv[0])) { @@ -1630,10 +1860,10 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) rep_args = has_required_arg(rep_script_path); rec_args = (argc - 1) - rep_args; if (rec_args < 0) { - fprintf(stderr, " %s script requires options." + usage_with_options_msg(script_usage, options, + "`%s' script requires options." "\n\n See perf script -l for available " "scripts and options.\n", argv[0]); - usage_with_options(script_usage, options); } } @@ -1764,6 +1994,9 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) goto out_delete; script.session = session; + script__setup_sample_type(&script); + + session->itrace_synth_opts = &itrace_synth_opts; if (cpu_list) { err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap); @@ -1776,6 +2009,14 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) else symbol_conf.use_callchain = false; + if (session->tevent.pevent && + pevent_set_function_resolver(session->tevent.pevent, + machine__resolve_kernel_addr, + &session->machines.host) < 0) { + pr_err("%s: failed to set libtraceevent function resolver\n", __func__); + return -1; + } + if (generate_script_lang) { struct stat perf_stat; int input; |