From 06aae590033d1ae3c35b2920ef950cfc603e2a2d Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Sun, 27 Dec 2009 21:36:59 -0200 Subject: [PATCH] perf session: Move the event processing routines to session.c MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit No need for an extra "data_map" file since the routines there operate mainly on a perf_session instance. Signed-off-by: Arnaldo Carvalho de Melo Cc: Frédéric Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1261957026-15580-3-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar --- tools/perf/Makefile | 1 - tools/perf/util/data_map.c | 252 ------------------------------------- tools/perf/util/session.c | 245 ++++++++++++++++++++++++++++++++++++ 3 files changed, 245 insertions(+), 253 deletions(-) delete mode 100644 tools/perf/util/data_map.c diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 652a470b5f74..4172c3b0e4a7 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -423,7 +423,6 @@ LIB_OBJS += util/trace-event-perl.o LIB_OBJS += util/svghelper.o LIB_OBJS += util/sort.o LIB_OBJS += util/hist.o -LIB_OBJS += util/data_map.o LIB_OBJS += util/probe-event.o BUILTIN_OBJS += builtin-annotate.o diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c deleted file mode 100644 index b557b836de3d..000000000000 --- a/tools/perf/util/data_map.c +++ /dev/null @@ -1,252 +0,0 @@ -#include "symbol.h" -#include "util.h" -#include "debug.h" -#include "thread.h" -#include "session.h" - -static int process_event_stub(event_t *event __used, - struct perf_session *session __used) -{ - dump_printf(": unhandled!\n"); - return 0; -} - -static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) -{ - if (!handler->process_sample_event) - handler->process_sample_event = process_event_stub; - if (!handler->process_mmap_event) - handler->process_mmap_event = process_event_stub; - if (!handler->process_comm_event) - handler->process_comm_event = process_event_stub; - if (!handler->process_fork_event) - handler->process_fork_event = process_event_stub; - if (!handler->process_exit_event) - handler->process_exit_event = process_event_stub; - if (!handler->process_lost_event) - handler->process_lost_event = process_event_stub; - if (!handler->process_read_event) - handler->process_read_event = process_event_stub; - if (!handler->process_throttle_event) - handler->process_throttle_event = process_event_stub; - if (!handler->process_unthrottle_event) - handler->process_unthrottle_event = process_event_stub; -} - -static const char *event__name[] = { - [0] = "TOTAL", - [PERF_RECORD_MMAP] = "MMAP", - [PERF_RECORD_LOST] = "LOST", - [PERF_RECORD_COMM] = "COMM", - [PERF_RECORD_EXIT] = "EXIT", - [PERF_RECORD_THROTTLE] = "THROTTLE", - [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", - [PERF_RECORD_FORK] = "FORK", - [PERF_RECORD_READ] = "READ", - [PERF_RECORD_SAMPLE] = "SAMPLE", -}; - -unsigned long event__total[PERF_RECORD_MAX]; - -void event__print_totals(void) -{ - int i; - for (i = 0; i < PERF_RECORD_MAX; ++i) - pr_info("%10s events: %10ld\n", - event__name[i], event__total[i]); -} - -static int process_event(event_t *event, struct perf_session *session, - struct perf_event_ops *ops, - unsigned long offset, unsigned long head) -{ - trace_event(event); - - if (event->header.type < PERF_RECORD_MAX) { - dump_printf("%p [%p]: PERF_RECORD_%s", - (void *)(offset + head), - (void *)(long)(event->header.size), - event__name[event->header.type]); - ++event__total[0]; - ++event__total[event->header.type]; - } - - switch (event->header.type) { - case PERF_RECORD_SAMPLE: - return ops->process_sample_event(event, session); - case PERF_RECORD_MMAP: - return ops->process_mmap_event(event, session); - case PERF_RECORD_COMM: - return ops->process_comm_event(event, session); - case PERF_RECORD_FORK: - return ops->process_fork_event(event, session); - case PERF_RECORD_EXIT: - return ops->process_exit_event(event, session); - case PERF_RECORD_LOST: - return ops->process_lost_event(event, session); - case PERF_RECORD_READ: - return ops->process_read_event(event, session); - case PERF_RECORD_THROTTLE: - return ops->process_throttle_event(event, session); - case PERF_RECORD_UNTHROTTLE: - return ops->process_unthrottle_event(event, session); - default: - ops->total_unknown++; - return -1; - } -} - -int perf_header__read_build_ids(int input, u64 offset, u64 size) -{ - struct build_id_event bev; - char filename[PATH_MAX]; - u64 limit = offset + size; - int err = -1; - - while (offset < limit) { - struct dso *dso; - ssize_t len; - - if (read(input, &bev, sizeof(bev)) != sizeof(bev)) - goto out; - - len = bev.header.size - sizeof(bev); - if (read(input, filename, len) != len) - goto out; - - dso = dsos__findnew(filename); - if (dso != NULL) - dso__set_build_id(dso, &bev.build_id); - - offset += bev.header.size; - } - err = 0; -out: - return err; -} - -static struct thread *perf_session__register_idle_thread(struct perf_session *self) -{ - struct thread *thread = perf_session__findnew(self, 0); - - if (!thread || thread__set_comm(thread, "swapper")) { - pr_err("problem inserting idle task.\n"); - thread = NULL; - } - - return thread; -} - -int perf_session__process_events(struct perf_session *self, - struct perf_event_ops *ops) -{ - int err; - unsigned long head, shift; - unsigned long offset = 0; - size_t page_size; - event_t *event; - uint32_t size; - char *buf; - - if (perf_session__register_idle_thread(self) == NULL) - return -ENOMEM; - - perf_event_ops__fill_defaults(ops); - - page_size = getpagesize(); - - head = self->header.data_offset; - self->sample_type = perf_header__sample_type(&self->header); - - err = -EINVAL; - if (ops->sample_type_check && ops->sample_type_check(self) < 0) - goto out_err; - - if (!ops->full_paths) { - char bf[PATH_MAX]; - - if (getcwd(bf, sizeof(bf)) == NULL) { - err = -errno; -out_getcwd_err: - pr_err("failed to get the current directory\n"); - goto out_err; - } - self->cwd = strdup(bf); - if (self->cwd == NULL) { - err = -ENOMEM; - goto out_getcwd_err; - } - self->cwdlen = strlen(self->cwd); - } - - shift = page_size * (head / page_size); - offset += shift; - head -= shift; - -remap: - buf = mmap(NULL, page_size * self->mmap_window, PROT_READ, - MAP_SHARED, self->fd, offset); - if (buf == MAP_FAILED) { - pr_err("failed to mmap file\n"); - err = -errno; - goto out_err; - } - -more: - event = (event_t *)(buf + head); - - size = event->header.size; - if (!size) - size = 8; - - if (head + event->header.size >= page_size * self->mmap_window) { - int munmap_ret; - - shift = page_size * (head / page_size); - - munmap_ret = munmap(buf, page_size * self->mmap_window); - assert(munmap_ret == 0); - - offset += shift; - head -= shift; - goto remap; - } - - size = event->header.size; - - dump_printf("\n%p [%p]: event: %d\n", - (void *)(offset + head), - (void *)(long)event->header.size, - event->header.type); - - if (!size || process_event(event, self, ops, offset, head) < 0) { - - dump_printf("%p [%p]: skipping unknown header type: %d\n", - (void *)(offset + head), - (void *)(long)(event->header.size), - event->header.type); - - /* - * assume we lost track of the stream, check alignment, and - * increment a single u64 in the hope to catch on again 'soon'. - */ - - if (unlikely(head & 7)) - head &= ~7ULL; - - size = 8; - } - - head += size; - - if (offset + head >= self->header.data_offset + self->header.data_size) - goto done; - - if (offset + head < self->size) - goto more; - -done: - err = 0; -out_err: - return err; -} diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index ce3a6c8abe76..736d4fda9272 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -148,3 +148,248 @@ struct symbol **perf_session__resolve_callchain(struct perf_session *self, return syms; } + +static int process_event_stub(event_t *event __used, + struct perf_session *session __used) +{ + dump_printf(": unhandled!\n"); + return 0; +} + +static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) +{ + if (handler->process_sample_event == NULL) + handler->process_sample_event = process_event_stub; + if (handler->process_mmap_event == NULL) + handler->process_mmap_event = process_event_stub; + if (handler->process_comm_event == NULL) + handler->process_comm_event = process_event_stub; + if (handler->process_fork_event == NULL) + handler->process_fork_event = process_event_stub; + if (handler->process_exit_event == NULL) + handler->process_exit_event = process_event_stub; + if (handler->process_lost_event == NULL) + handler->process_lost_event = process_event_stub; + if (handler->process_read_event == NULL) + handler->process_read_event = process_event_stub; + if (handler->process_throttle_event == NULL) + handler->process_throttle_event = process_event_stub; + if (handler->process_unthrottle_event == NULL) + handler->process_unthrottle_event = process_event_stub; +} + +static const char *event__name[] = { + [0] = "TOTAL", + [PERF_RECORD_MMAP] = "MMAP", + [PERF_RECORD_LOST] = "LOST", + [PERF_RECORD_COMM] = "COMM", + [PERF_RECORD_EXIT] = "EXIT", + [PERF_RECORD_THROTTLE] = "THROTTLE", + [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE", + [PERF_RECORD_FORK] = "FORK", + [PERF_RECORD_READ] = "READ", + [PERF_RECORD_SAMPLE] = "SAMPLE", +}; + +unsigned long event__total[PERF_RECORD_MAX]; + +void event__print_totals(void) +{ + int i; + for (i = 0; i < PERF_RECORD_MAX; ++i) + pr_info("%10s events: %10ld\n", + event__name[i], event__total[i]); +} + +static int perf_session__process_event(struct perf_session *self, + event_t *event, + struct perf_event_ops *ops, + unsigned long offset, unsigned long head) +{ + trace_event(event); + + if (event->header.type < PERF_RECORD_MAX) { + dump_printf("%p [%p]: PERF_RECORD_%s", + (void *)(offset + head), + (void *)(long)(event->header.size), + event__name[event->header.type]); + ++event__total[0]; + ++event__total[event->header.type]; + } + + switch (event->header.type) { + case PERF_RECORD_SAMPLE: + return ops->process_sample_event(event, self); + case PERF_RECORD_MMAP: + return ops->process_mmap_event(event, self); + case PERF_RECORD_COMM: + return ops->process_comm_event(event, self); + case PERF_RECORD_FORK: + return ops->process_fork_event(event, self); + case PERF_RECORD_EXIT: + return ops->process_exit_event(event, self); + case PERF_RECORD_LOST: + return ops->process_lost_event(event, self); + case PERF_RECORD_READ: + return ops->process_read_event(event, self); + case PERF_RECORD_THROTTLE: + return ops->process_throttle_event(event, self); + case PERF_RECORD_UNTHROTTLE: + return ops->process_unthrottle_event(event, self); + default: + ops->total_unknown++; + return -1; + } +} + +int perf_header__read_build_ids(int input, u64 offset, u64 size) +{ + struct build_id_event bev; + char filename[PATH_MAX]; + u64 limit = offset + size; + int err = -1; + + while (offset < limit) { + struct dso *dso; + ssize_t len; + + if (read(input, &bev, sizeof(bev)) != sizeof(bev)) + goto out; + + len = bev.header.size - sizeof(bev); + if (read(input, filename, len) != len) + goto out; + + dso = dsos__findnew(filename); + if (dso != NULL) + dso__set_build_id(dso, &bev.build_id); + + offset += bev.header.size; + } + err = 0; +out: + return err; +} + +static struct thread *perf_session__register_idle_thread(struct perf_session *self) +{ + struct thread *thread = perf_session__findnew(self, 0); + + if (thread == NULL || thread__set_comm(thread, "swapper")) { + pr_err("problem inserting idle task.\n"); + thread = NULL; + } + + return thread; +} + +int perf_session__process_events(struct perf_session *self, + struct perf_event_ops *ops) +{ + int err; + unsigned long head, shift; + unsigned long offset = 0; + size_t page_size; + event_t *event; + uint32_t size; + char *buf; + + if (perf_session__register_idle_thread(self) == NULL) + return -ENOMEM; + + perf_event_ops__fill_defaults(ops); + + page_size = getpagesize(); + + head = self->header.data_offset; + self->sample_type = perf_header__sample_type(&self->header); + + err = -EINVAL; + if (ops->sample_type_check && ops->sample_type_check(self) < 0) + goto out_err; + + if (!ops->full_paths) { + char bf[PATH_MAX]; + + if (getcwd(bf, sizeof(bf)) == NULL) { + err = -errno; +out_getcwd_err: + pr_err("failed to get the current directory\n"); + goto out_err; + } + self->cwd = strdup(bf); + if (self->cwd == NULL) { + err = -ENOMEM; + goto out_getcwd_err; + } + self->cwdlen = strlen(self->cwd); + } + + shift = page_size * (head / page_size); + offset += shift; + head -= shift; + +remap: + buf = mmap(NULL, page_size * self->mmap_window, PROT_READ, + MAP_SHARED, self->fd, offset); + if (buf == MAP_FAILED) { + pr_err("failed to mmap file\n"); + err = -errno; + goto out_err; + } + +more: + event = (event_t *)(buf + head); + + size = event->header.size; + if (size == 0) + size = 8; + + if (head + event->header.size >= page_size * self->mmap_window) { + int munmap_ret; + + shift = page_size * (head / page_size); + + munmap_ret = munmap(buf, page_size * self->mmap_window); + assert(munmap_ret == 0); + + offset += shift; + head -= shift; + goto remap; + } + + size = event->header.size; + + dump_printf("\n%p [%p]: event: %d\n", + (void *)(offset + head), + (void *)(long)event->header.size, + event->header.type); + + if (size == 0 || + perf_session__process_event(self, event, ops, offset, head) < 0) { + dump_printf("%p [%p]: skipping unknown header type: %d\n", + (void *)(offset + head), + (void *)(long)(event->header.size), + event->header.type); + /* + * assume we lost track of the stream, check alignment, and + * increment a single u64 in the hope to catch on again 'soon'. + */ + if (unlikely(head & 7)) + head &= ~7ULL; + + size = 8; + } + + head += size; + + if (offset + head >= self->header.data_offset + self->header.data_size) + goto done; + + if (offset + head < self->size) + goto more; +done: + err = 0; +out_err: + return err; +} -- 2.39.5