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authorIngo Molnar <mingo@elte.hu>2010-11-16 18:45:39 +0100
committerThomas Gleixner <tglx@linutronix.de>2010-11-16 19:37:44 +0100
commit133dc4c39c57eeef2577ca5b4ed24765b7a78ce2 (patch)
tree88309b8336fccfd8fea52a5c1e107d6ca2060a39 /tools/perf/builtin-trace.c
parente53beacd23d9cb47590da6a7a7f6d417b941a994 (diff)
downloadop-kernel-dev-133dc4c39c57eeef2577ca5b4ed24765b7a78ce2.zip
op-kernel-dev-133dc4c39c57eeef2577ca5b4ed24765b7a78ce2.tar.gz
perf: Rename 'perf trace' to 'perf script'
Free the perf trace name space and rename the trace to 'script' which is a better match for the scripting engine. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/perf/builtin-trace.c')
-rw-r--r--tools/perf/builtin-trace.c826
1 files changed, 0 insertions, 826 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
deleted file mode 100644
index 86cfe38..0000000
--- a/tools/perf/builtin-trace.c
+++ /dev/null
@@ -1,826 +0,0 @@
-#include "builtin.h"
-
-#include "perf.h"
-#include "util/cache.h"
-#include "util/debug.h"
-#include "util/exec_cmd.h"
-#include "util/header.h"
-#include "util/parse-options.h"
-#include "util/session.h"
-#include "util/symbol.h"
-#include "util/thread.h"
-#include "util/trace-event.h"
-#include "util/parse-options.h"
-#include "util/util.h"
-
-static char const *script_name;
-static char const *generate_script_lang;
-static bool debug_mode;
-static u64 last_timestamp;
-static u64 nr_unordered;
-extern const struct option record_options[];
-
-static int default_start_script(const char *script __unused,
- int argc __unused,
- const char **argv __unused)
-{
- return 0;
-}
-
-static int default_stop_script(void)
-{
- return 0;
-}
-
-static int default_generate_script(const char *outfile __unused)
-{
- return 0;
-}
-
-static struct scripting_ops default_scripting_ops = {
- .start_script = default_start_script,
- .stop_script = default_stop_script,
- .process_event = print_event,
- .generate_script = default_generate_script,
-};
-
-static struct scripting_ops *scripting_ops;
-
-static void setup_scripting(void)
-{
- setup_perl_scripting();
- setup_python_scripting();
-
- scripting_ops = &default_scripting_ops;
-}
-
-static int cleanup_scripting(void)
-{
- pr_debug("\nperf trace script stopped\n");
-
- return scripting_ops->stop_script();
-}
-
-static char const *input_name = "perf.data";
-
-static int process_sample_event(event_t *event, struct perf_session *session)
-{
- struct sample_data data;
- struct thread *thread;
-
- memset(&data, 0, sizeof(data));
- data.time = -1;
- data.cpu = -1;
- data.period = 1;
-
- event__parse_sample(event, session->sample_type, &data);
-
- dump_printf("(IP, %d): %d/%d: %#Lx period: %Ld\n", event->header.misc,
- data.pid, data.tid, data.ip, data.period);
-
- thread = perf_session__findnew(session, event->ip.pid);
- if (thread == NULL) {
- pr_debug("problem processing %d event, skipping it.\n",
- event->header.type);
- return -1;
- }
-
- if (session->sample_type & PERF_SAMPLE_RAW) {
- if (debug_mode) {
- if (data.time < last_timestamp) {
- pr_err("Samples misordered, previous: %llu "
- "this: %llu\n", last_timestamp,
- data.time);
- nr_unordered++;
- }
- last_timestamp = data.time;
- return 0;
- }
- /*
- * FIXME: better resolve from pid from the struct trace_entry
- * field, although it should be the same than this perf
- * event pid
- */
- scripting_ops->process_event(data.cpu, data.raw_data,
- data.raw_size,
- data.time, thread->comm);
- }
-
- session->hists.stats.total_period += data.period;
- return 0;
-}
-
-static u64 nr_lost;
-
-static int process_lost_event(event_t *event, struct perf_session *session __used)
-{
- nr_lost += event->lost.lost;
-
- return 0;
-}
-
-static struct perf_event_ops event_ops = {
- .sample = process_sample_event,
- .comm = event__process_comm,
- .attr = event__process_attr,
- .event_type = event__process_event_type,
- .tracing_data = event__process_tracing_data,
- .build_id = event__process_build_id,
- .lost = process_lost_event,
- .ordered_samples = true,
-};
-
-extern volatile int session_done;
-
-static void sig_handler(int sig __unused)
-{
- session_done = 1;
-}
-
-static int __cmd_trace(struct perf_session *session)
-{
- int ret;
-
- signal(SIGINT, sig_handler);
-
- ret = perf_session__process_events(session, &event_ops);
-
- if (debug_mode) {
- pr_err("Misordered timestamps: %llu\n", nr_unordered);
- pr_err("Lost events: %llu\n", nr_lost);
- }
-
- return ret;
-}
-
-struct script_spec {
- struct list_head node;
- struct scripting_ops *ops;
- char spec[0];
-};
-
-LIST_HEAD(script_specs);
-
-static struct script_spec *script_spec__new(const char *spec,
- struct scripting_ops *ops)
-{
- struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1);
-
- if (s != NULL) {
- strcpy(s->spec, spec);
- s->ops = ops;
- }
-
- return s;
-}
-
-static void script_spec__delete(struct script_spec *s)
-{
- free(s->spec);
- free(s);
-}
-
-static void script_spec__add(struct script_spec *s)
-{
- list_add_tail(&s->node, &script_specs);
-}
-
-static struct script_spec *script_spec__find(const char *spec)
-{
- struct script_spec *s;
-
- list_for_each_entry(s, &script_specs, node)
- if (strcasecmp(s->spec, spec) == 0)
- return s;
- return NULL;
-}
-
-static struct script_spec *script_spec__findnew(const char *spec,
- struct scripting_ops *ops)
-{
- struct script_spec *s = script_spec__find(spec);
-
- if (s)
- return s;
-
- s = script_spec__new(spec, ops);
- if (!s)
- goto out_delete_spec;
-
- script_spec__add(s);
-
- return s;
-
-out_delete_spec:
- script_spec__delete(s);
-
- return NULL;
-}
-
-int script_spec_register(const char *spec, struct scripting_ops *ops)
-{
- struct script_spec *s;
-
- s = script_spec__find(spec);
- if (s)
- return -1;
-
- s = script_spec__findnew(spec, ops);
- if (!s)
- return -1;
-
- return 0;
-}
-
-static struct scripting_ops *script_spec__lookup(const char *spec)
-{
- struct script_spec *s = script_spec__find(spec);
- if (!s)
- return NULL;
-
- return s->ops;
-}
-
-static void list_available_languages(void)
-{
- struct script_spec *s;
-
- fprintf(stderr, "\n");
- fprintf(stderr, "Scripting language extensions (used in "
- "perf trace -s [spec:]script.[spec]):\n\n");
-
- list_for_each_entry(s, &script_specs, node)
- fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name);
-
- fprintf(stderr, "\n");
-}
-
-static int parse_scriptname(const struct option *opt __used,
- const char *str, int unset __used)
-{
- char spec[PATH_MAX];
- const char *script, *ext;
- int len;
-
- if (strcmp(str, "lang") == 0) {
- list_available_languages();
- exit(0);
- }
-
- script = strchr(str, ':');
- if (script) {
- len = script - str;
- if (len >= PATH_MAX) {
- fprintf(stderr, "invalid language specifier");
- return -1;
- }
- strncpy(spec, str, len);
- spec[len] = '\0';
- scripting_ops = script_spec__lookup(spec);
- if (!scripting_ops) {
- fprintf(stderr, "invalid language specifier");
- return -1;
- }
- script++;
- } else {
- script = str;
- ext = strrchr(script, '.');
- if (!ext) {
- fprintf(stderr, "invalid script extension");
- return -1;
- }
- scripting_ops = script_spec__lookup(++ext);
- if (!scripting_ops) {
- fprintf(stderr, "invalid script extension");
- return -1;
- }
- }
-
- script_name = strdup(script);
-
- return 0;
-}
-
-#define for_each_lang(scripts_dir, lang_dirent, lang_next) \
- while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \
- lang_next) \
- if (lang_dirent.d_type == DT_DIR && \
- (strcmp(lang_dirent.d_name, ".")) && \
- (strcmp(lang_dirent.d_name, "..")))
-
-#define for_each_script(lang_dir, script_dirent, script_next) \
- while (!readdir_r(lang_dir, &script_dirent, &script_next) && \
- script_next) \
- if (script_dirent.d_type != DT_DIR)
-
-
-#define RECORD_SUFFIX "-record"
-#define REPORT_SUFFIX "-report"
-
-struct script_desc {
- struct list_head node;
- char *name;
- char *half_liner;
- char *args;
-};
-
-LIST_HEAD(script_descs);
-
-static struct script_desc *script_desc__new(const char *name)
-{
- struct script_desc *s = zalloc(sizeof(*s));
-
- if (s != NULL && name)
- s->name = strdup(name);
-
- return s;
-}
-
-static void script_desc__delete(struct script_desc *s)
-{
- free(s->name);
- free(s->half_liner);
- free(s->args);
- free(s);
-}
-
-static void script_desc__add(struct script_desc *s)
-{
- list_add_tail(&s->node, &script_descs);
-}
-
-static struct script_desc *script_desc__find(const char *name)
-{
- struct script_desc *s;
-
- list_for_each_entry(s, &script_descs, node)
- if (strcasecmp(s->name, name) == 0)
- return s;
- return NULL;
-}
-
-static struct script_desc *script_desc__findnew(const char *name)
-{
- struct script_desc *s = script_desc__find(name);
-
- if (s)
- return s;
-
- s = script_desc__new(name);
- if (!s)
- goto out_delete_desc;
-
- script_desc__add(s);
-
- return s;
-
-out_delete_desc:
- script_desc__delete(s);
-
- return NULL;
-}
-
-static char *ends_with(char *str, const char *suffix)
-{
- size_t suffix_len = strlen(suffix);
- char *p = str;
-
- if (strlen(str) > suffix_len) {
- p = str + strlen(str) - suffix_len;
- if (!strncmp(p, suffix, suffix_len))
- return p;
- }
-
- return NULL;
-}
-
-static char *ltrim(char *str)
-{
- int len = strlen(str);
-
- while (len && isspace(*str)) {
- len--;
- str++;
- }
-
- return str;
-}
-
-static int read_script_info(struct script_desc *desc, const char *filename)
-{
- char line[BUFSIZ], *p;
- FILE *fp;
-
- fp = fopen(filename, "r");
- if (!fp)
- return -1;
-
- while (fgets(line, sizeof(line), fp)) {
- p = ltrim(line);
- if (strlen(p) == 0)
- continue;
- if (*p != '#')
- continue;
- p++;
- if (strlen(p) && *p == '!')
- continue;
-
- p = ltrim(p);
- if (strlen(p) && p[strlen(p) - 1] == '\n')
- p[strlen(p) - 1] = '\0';
-
- if (!strncmp(p, "description:", strlen("description:"))) {
- p += strlen("description:");
- desc->half_liner = strdup(ltrim(p));
- continue;
- }
-
- if (!strncmp(p, "args:", strlen("args:"))) {
- p += strlen("args:");
- desc->args = strdup(ltrim(p));
- continue;
- }
- }
-
- fclose(fp);
-
- return 0;
-}
-
-static int list_available_scripts(const struct option *opt __used,
- const char *s __used, int unset __used)
-{
- struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
- char scripts_path[MAXPATHLEN];
- DIR *scripts_dir, *lang_dir;
- char script_path[MAXPATHLEN];
- char lang_path[MAXPATHLEN];
- struct script_desc *desc;
- char first_half[BUFSIZ];
- char *script_root;
- char *str;
-
- snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
-
- scripts_dir = opendir(scripts_path);
- if (!scripts_dir)
- return -1;
-
- for_each_lang(scripts_dir, lang_dirent, lang_next) {
- snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
- lang_dirent.d_name);
- lang_dir = opendir(lang_path);
- if (!lang_dir)
- continue;
-
- for_each_script(lang_dir, script_dirent, script_next) {
- script_root = strdup(script_dirent.d_name);
- str = ends_with(script_root, REPORT_SUFFIX);
- if (str) {
- *str = '\0';
- desc = script_desc__findnew(script_root);
- snprintf(script_path, MAXPATHLEN, "%s/%s",
- lang_path, script_dirent.d_name);
- read_script_info(desc, script_path);
- }
- free(script_root);
- }
- }
-
- fprintf(stdout, "List of available trace scripts:\n");
- list_for_each_entry(desc, &script_descs, node) {
- sprintf(first_half, "%s %s", desc->name,
- desc->args ? desc->args : "");
- fprintf(stdout, " %-36s %s\n", first_half,
- desc->half_liner ? desc->half_liner : "");
- }
-
- exit(0);
-}
-
-static char *get_script_path(const char *script_root, const char *suffix)
-{
- struct dirent *script_next, *lang_next, script_dirent, lang_dirent;
- char scripts_path[MAXPATHLEN];
- char script_path[MAXPATHLEN];
- DIR *scripts_dir, *lang_dir;
- char lang_path[MAXPATHLEN];
- char *str, *__script_root;
- char *path = NULL;
-
- snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path());
-
- scripts_dir = opendir(scripts_path);
- if (!scripts_dir)
- return NULL;
-
- for_each_lang(scripts_dir, lang_dirent, lang_next) {
- snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path,
- lang_dirent.d_name);
- lang_dir = opendir(lang_path);
- if (!lang_dir)
- continue;
-
- for_each_script(lang_dir, script_dirent, script_next) {
- __script_root = strdup(script_dirent.d_name);
- str = ends_with(__script_root, suffix);
- if (str) {
- *str = '\0';
- if (strcmp(__script_root, script_root))
- continue;
- snprintf(script_path, MAXPATHLEN, "%s/%s",
- lang_path, script_dirent.d_name);
- path = strdup(script_path);
- free(__script_root);
- break;
- }
- free(__script_root);
- }
- }
-
- return path;
-}
-
-static bool is_top_script(const char *script_path)
-{
- return ends_with((char *)script_path, "top") == NULL ? false : true;
-}
-
-static int has_required_arg(char *script_path)
-{
- struct script_desc *desc;
- int n_args = 0;
- char *p;
-
- desc = script_desc__new(NULL);
-
- if (read_script_info(desc, script_path))
- goto out;
-
- if (!desc->args)
- goto out;
-
- for (p = desc->args; *p; p++)
- if (*p == '<')
- n_args++;
-out:
- script_desc__delete(desc);
-
- return n_args;
-}
-
-static const char * const trace_usage[] = {
- "perf trace [<options>]",
- "perf trace [<options>] record <script> [<record-options>] <command>",
- "perf trace [<options>] report <script> [script-args]",
- "perf trace [<options>] <script> [<record-options>] <command>",
- "perf trace [<options>] <top-script> [script-args]",
- NULL
-};
-
-static const struct option options[] = {
- OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
- "dump raw trace in ASCII"),
- OPT_INCR('v', "verbose", &verbose,
- "be more verbose (show symbol address, etc)"),
- OPT_BOOLEAN('L', "Latency", &latency_format,
- "show latency attributes (irqs/preemption disabled, etc)"),
- OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts",
- list_available_scripts),
- OPT_CALLBACK('s', "script", NULL, "name",
- "script file name (lang:script name, script name, or *)",
- parse_scriptname),
- OPT_STRING('g', "gen-script", &generate_script_lang, "lang",
- "generate perf-trace.xx script in specified language"),
- OPT_STRING('i', "input", &input_name, "file",
- "input file name"),
- OPT_BOOLEAN('d', "debug-mode", &debug_mode,
- "do various checks like samples ordering and lost events"),
-
- OPT_END()
-};
-
-static bool have_cmd(int argc, const char **argv)
-{
- char **__argv = malloc(sizeof(const char *) * argc);
-
- if (!__argv)
- die("malloc");
- memcpy(__argv, argv, sizeof(const char *) * argc);
- argc = parse_options(argc, (const char **)__argv, record_options,
- NULL, PARSE_OPT_STOP_AT_NON_OPTION);
- free(__argv);
-
- return argc != 0;
-}
-
-int cmd_trace(int argc, const char **argv, const char *prefix __used)
-{
- char *rec_script_path = NULL;
- char *rep_script_path = NULL;
- struct perf_session *session;
- char *script_path = NULL;
- const char **__argv;
- bool system_wide;
- int i, j, err;
-
- setup_scripting();
-
- argc = parse_options(argc, argv, options, trace_usage,
- PARSE_OPT_STOP_AT_NON_OPTION);
-
- if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
- rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
- if (!rec_script_path)
- return cmd_record(argc, argv, NULL);
- }
-
- if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) {
- rep_script_path = get_script_path(argv[1], REPORT_SUFFIX);
- if (!rep_script_path) {
- fprintf(stderr,
- "Please specify a valid report script"
- "(see 'perf trace -l' for listing)\n");
- return -1;
- }
- }
-
- /* make sure PERF_EXEC_PATH is set for scripts */
- perf_set_argv_exec_path(perf_exec_path());
-
- if (argc && !script_name && !rec_script_path && !rep_script_path) {
- int live_pipe[2];
- int rep_args;
- pid_t pid;
-
- rec_script_path = get_script_path(argv[0], RECORD_SUFFIX);
- 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"
- " trace -l for available scripts.\n", argv[0]);
- usage_with_options(trace_usage, options);
- }
-
- if (is_top_script(argv[0])) {
- rep_args = argc - 1;
- } else {
- int rec_args;
-
- rep_args = has_required_arg(rep_script_path);
- rec_args = (argc - 1) - rep_args;
- if (rec_args < 0) {
- fprintf(stderr, " %s script requires options."
- "\n\n See perf trace -l for available "
- "scripts and options.\n", argv[0]);
- usage_with_options(trace_usage, options);
- }
- }
-
- if (pipe(live_pipe) < 0) {
- perror("failed to create pipe");
- exit(-1);
- }
-
- pid = fork();
- if (pid < 0) {
- perror("failed to fork");
- exit(-1);
- }
-
- if (!pid) {
- system_wide = true;
- j = 0;
-
- dup2(live_pipe[1], 1);
- close(live_pipe[0]);
-
- if (!is_top_script(argv[0]))
- system_wide = !have_cmd(argc - rep_args,
- &argv[rep_args]);
-
- __argv = malloc((argc + 6) * sizeof(const char *));
- if (!__argv)
- die("malloc");
-
- __argv[j++] = "/bin/sh";
- __argv[j++] = rec_script_path;
- if (system_wide)
- __argv[j++] = "-a";
- __argv[j++] = "-q";
- __argv[j++] = "-o";
- __argv[j++] = "-";
- for (i = rep_args + 1; i < argc; i++)
- __argv[j++] = argv[i];
- __argv[j++] = NULL;
-
- execvp("/bin/sh", (char **)__argv);
- free(__argv);
- exit(-1);
- }
-
- dup2(live_pipe[0], 0);
- close(live_pipe[1]);
-
- __argv = malloc((argc + 4) * sizeof(const char *));
- if (!__argv)
- die("malloc");
- j = 0;
- __argv[j++] = "/bin/sh";
- __argv[j++] = rep_script_path;
- for (i = 1; i < rep_args + 1; i++)
- __argv[j++] = argv[i];
- __argv[j++] = "-i";
- __argv[j++] = "-";
- __argv[j++] = NULL;
-
- execvp("/bin/sh", (char **)__argv);
- free(__argv);
- exit(-1);
- }
-
- if (rec_script_path)
- script_path = rec_script_path;
- if (rep_script_path)
- script_path = rep_script_path;
-
- if (script_path) {
- system_wide = false;
- j = 0;
-
- if (rec_script_path)
- system_wide = !have_cmd(argc - 1, &argv[1]);
-
- __argv = malloc((argc + 2) * sizeof(const char *));
- if (!__argv)
- die("malloc");
- __argv[j++] = "/bin/sh";
- __argv[j++] = script_path;
- if (system_wide)
- __argv[j++] = "-a";
- for (i = 2; i < argc; i++)
- __argv[j++] = argv[i];
- __argv[j++] = NULL;
-
- execvp("/bin/sh", (char **)__argv);
- free(__argv);
- exit(-1);
- }
-
- if (symbol__init() < 0)
- return -1;
- if (!script_name)
- setup_pager();
-
- session = perf_session__new(input_name, O_RDONLY, 0, false);
- if (session == NULL)
- return -ENOMEM;
-
- if (strcmp(input_name, "-") &&
- !perf_session__has_traces(session, "record -R"))
- return -EINVAL;
-
- if (generate_script_lang) {
- struct stat perf_stat;
-
- int input = open(input_name, O_RDONLY);
- if (input < 0) {
- perror("failed to open file");
- exit(-1);
- }
-
- err = fstat(input, &perf_stat);
- if (err < 0) {
- perror("failed to stat file");
- exit(-1);
- }
-
- if (!perf_stat.st_size) {
- fprintf(stderr, "zero-sized file, nothing to do!\n");
- exit(0);
- }
-
- scripting_ops = script_spec__lookup(generate_script_lang);
- if (!scripting_ops) {
- fprintf(stderr, "invalid language specifier");
- return -1;
- }
-
- err = scripting_ops->generate_script("perf-trace");
- goto out;
- }
-
- if (script_name) {
- err = scripting_ops->start_script(script_name, argc, argv);
- if (err)
- goto out;
- pr_debug("perf trace started with script %s\n\n", script_name);
- }
-
- err = __cmd_trace(session);
-
- perf_session__delete(session);
- cleanup_scripting();
-out:
- return err;
-}
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