diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/Makefile | 4 | ||||
| -rw-r--r-- | tools/perf/builtin-record.c | 12 | ||||
| -rw-r--r-- | tools/perf/builtin-report.c | 2 | ||||
| -rw-r--r-- | tools/perf/builtin-trace.c | 282 | ||||
| -rw-r--r-- | tools/perf/perf.c | 1 | ||||
| -rw-r--r-- | tools/perf/util/parse-events.c | 47 | ||||
| -rw-r--r-- | tools/perf/util/parse-events.h | 13 | ||||
| -rw-r--r-- | tools/perf/util/trace-event-info.c | 539 | ||||
| -rw-r--r-- | tools/perf/util/trace-event-parse.c | 2930 | ||||
| -rw-r--r-- | tools/perf/util/trace-event-read.c | 509 | ||||
| -rw-r--r-- | tools/perf/util/trace-event.h | 239 | ||||
| -rw-r--r-- | tools/perf/util/util.h | 1 |
12 files changed, 4569 insertions, 10 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 5d54ddb83ab..c481a513f55 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -347,6 +347,9 @@ LIB_OBJS += util/values.o LIB_OBJS += util/debug.o LIB_OBJS += util/map.o LIB_OBJS += util/thread.o +LIB_OBJS += util/trace-event-parse.o +LIB_OBJS += util/trace-event-read.o +LIB_OBJS += util/trace-event-info.o BUILTIN_OBJS += builtin-annotate.o BUILTIN_OBJS += builtin-help.o @@ -355,6 +358,7 @@ BUILTIN_OBJS += builtin-record.o BUILTIN_OBJS += builtin-report.o BUILTIN_OBJS += builtin-stat.o BUILTIN_OBJS += builtin-top.o +BUILTIN_OBJS += builtin-trace.o PERFLIBS = $(LIB_FILE) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 6a5db675ee4..add514d53d2 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -17,6 +17,7 @@ #include "util/header.h" #include "util/event.h" #include "util/debug.h" +#include "util/trace-event.h" #include <unistd.h> #include <sched.h> @@ -546,6 +547,17 @@ static int __cmd_record(int argc, const char **argv) else header = perf_header__new(); + + if (raw_samples) { + read_tracing_data(attrs, nr_counters); + } else { + for (i = 0; i < nr_counters; i++) { + if (attrs[i].sample_type & PERF_SAMPLE_RAW) { + read_tracing_data(attrs, nr_counters); + break; + } + } + } atexit(atexit_header); if (!system_wide) { diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index ea6328a893c..cdd46ab11bd 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -1428,7 +1428,7 @@ static int __cmd_report(void) exit(-1); } if (callchain) { - fprintf(stderr, "selected -c but no callchain data." + fprintf(stderr, "selected -g but no callchain data." " Did you call perf record without" " -g?\n"); exit(-1); diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c new file mode 100644 index 00000000000..dd3c2e7c9a1 --- /dev/null +++ b/tools/perf/builtin-trace.c @@ -0,0 +1,282 @@ +#include "builtin.h" + +#include "util/util.h" +#include "util/cache.h" +#include "util/symbol.h" +#include "util/thread.h" +#include "util/header.h" + +#include "util/parse-options.h" + +#include "perf.h" +#include "util/debug.h" + +#include "util/trace-event.h" + +static char const *input_name = "perf.data"; +static int input; +static unsigned long page_size; +static unsigned long mmap_window = 32; + +static unsigned long total = 0; +static unsigned long total_comm = 0; + +static struct rb_root threads; +static struct thread *last_match; + +static struct perf_header *header; +static u64 sample_type; + + +static int +process_comm_event(event_t *event, unsigned long offset, unsigned long head) +{ + struct thread *thread; + + thread = threads__findnew(event->comm.pid, &threads, &last_match); + + dump_printf("%p [%p]: PERF_EVENT_COMM: %s:%d\n", + (void *)(offset + head), + (void *)(long)(event->header.size), + event->comm.comm, event->comm.pid); + + if (thread == NULL || + thread__set_comm(thread, event->comm.comm)) { + dump_printf("problem processing PERF_EVENT_COMM, skipping event.\n"); + return -1; + } + total_comm++; + + return 0; +} + +static int +process_sample_event(event_t *event, unsigned long offset, unsigned long head) +{ + char level; + int show = 0; + struct dso *dso = NULL; + struct thread *thread; + u64 ip = event->ip.ip; + u64 period = 1; + void *more_data = event->ip.__more_data; + int cpumode; + + thread = threads__findnew(event->ip.pid, &threads, &last_match); + + if (sample_type & PERF_SAMPLE_PERIOD) { + period = *(u64 *)more_data; + more_data += sizeof(u64); + } + + dump_printf("%p [%p]: PERF_EVENT_SAMPLE (IP, %d): %d/%d: %p period: %Ld\n", + (void *)(offset + head), + (void *)(long)(event->header.size), + event->header.misc, + event->ip.pid, event->ip.tid, + (void *)(long)ip, + (long long)period); + + dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); + + if (thread == NULL) { + eprintf("problem processing %d event, skipping it.\n", + event->header.type); + return -1; + } + + cpumode = event->header.misc & PERF_EVENT_MISC_CPUMODE_MASK; + + if (cpumode == PERF_EVENT_MISC_KERNEL) { + show = SHOW_KERNEL; + level = 'k'; + + dso = kernel_dso; + + dump_printf(" ...... dso: %s\n", dso->name); + + } else if (cpumode == PERF_EVENT_MISC_USER) { + + show = SHOW_USER; + level = '.'; + + } else { + show = SHOW_HV; + level = 'H'; + + dso = hypervisor_dso; + + dump_printf(" ...... dso: [hypervisor]\n"); + } + + if (sample_type & PERF_SAMPLE_RAW) { + struct { + u32 size; + char data[0]; + } *raw = more_data; + + /* + * FIXME: better resolve from pid from the struct trace_entry + * field, although it should be the same than this perf + * event pid + */ + print_event(0, raw->data, raw->size, 0, thread->comm); + } + total += period; + + return 0; +} + +static int +process_event(event_t *event, unsigned long offset, unsigned long head) +{ + trace_event(event); + + switch (event->header.type) { + case PERF_EVENT_MMAP ... PERF_EVENT_LOST: + return 0; + + case PERF_EVENT_COMM: + return process_comm_event(event, offset, head); + + case PERF_EVENT_EXIT ... PERF_EVENT_READ: + return 0; + + case PERF_EVENT_SAMPLE: + return process_sample_event(event, offset, head); + + case PERF_EVENT_MAX: + default: + return -1; + } + + return 0; +} + +static int __cmd_trace(void) +{ + int ret, rc = EXIT_FAILURE; + unsigned long offset = 0; + unsigned long head = 0; + struct stat perf_stat; + event_t *event; + uint32_t size; + char *buf; + + trace_report(); + + input = open(input_name, O_RDONLY); + if (input < 0) { + perror("failed to open file"); + exit(-1); + } + + ret = fstat(input, &perf_stat); + if (ret < 0) { + perror("failed to stat file"); + exit(-1); + } + + if (!perf_stat.st_size) { + fprintf(stderr, "zero-sized file, nothing to do!\n"); + exit(0); + } + header = perf_header__read(input); + sample_type = perf_header__sample_type(header); + + if (!(sample_type & PERF_SAMPLE_RAW)) + die("No trace sample to read. Did you call perf record " + "without -R?"); + + if (load_kernel() < 0) { + perror("failed to load kernel symbols"); + return EXIT_FAILURE; + } + +remap: + buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, + MAP_SHARED, input, offset); + if (buf == MAP_FAILED) { + perror("failed to mmap file"); + exit(-1); + } + +more: + event = (event_t *)(buf + head); + + size = event->header.size; + if (!size) + size = 8; + + if (head + event->header.size >= page_size * mmap_window) { + unsigned long shift = page_size * (head / page_size); + int res; + + res = munmap(buf, page_size * mmap_window); + assert(res == 0); + + offset += shift; + head -= shift; + goto remap; + } + + size = event->header.size; + + + if (!size || process_event(event, offset, head) < 0) { + + /* + * 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 < (unsigned long)perf_stat.st_size) + goto more; + + rc = EXIT_SUCCESS; + close(input); + + return rc; +} + +static const char * const annotate_usage[] = { + "perf trace [<options>] <command>", + NULL +}; + +static const struct option options[] = { + OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, + "dump raw trace in ASCII"), + OPT_BOOLEAN('v', "verbose", &verbose, + "be more verbose (show symbol address, etc)"), + OPT_END() +}; + +int cmd_trace(int argc, const char **argv, const char *prefix __used) +{ + symbol__init(); + page_size = getpagesize(); + + argc = parse_options(argc, argv, options, annotate_usage, 0); + if (argc) { + /* + * Special case: if there's an argument left then assume tha + * it's a symbol filter: + */ + if (argc > 1) + usage_with_options(annotate_usage, options); + } + + + setup_pager(); + + return __cmd_trace(); +} diff --git a/tools/perf/perf.c b/tools/perf/perf.c index 31982ad064b..fe4589dde95 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -292,6 +292,7 @@ static void handle_internal_command(int argc, const char **argv) { "top", cmd_top, 0 }, { "annotate", cmd_annotate, 0 }, { "version", cmd_version, 0 }, + { "trace", cmd_trace, 0 }, }; unsigned int i; static const char ext[] = STRIP_EXTENSION; diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 1cda97b3911..89d46c99bc9 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -158,9 +158,9 @@ int valid_debugfs_mount(const char *debugfs) return 0; } -static const char *tracepoint_id_to_name(u64 config) +struct tracepoint_path *tracepoint_id_to_path(u64 config) { - static char tracepoint_name[2 * MAX_EVENT_LENGTH]; + struct tracepoint_path *path = NULL; DIR *sys_dir, *evt_dir; struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent; struct stat st; @@ -170,7 +170,7 @@ static const char *tracepoint_id_to_name(u64 config) char evt_path[MAXPATHLEN]; if (valid_debugfs_mount(debugfs_path)) - return "unkown"; + return NULL; sys_dir = opendir(debugfs_path); if (!sys_dir) @@ -197,10 +197,23 @@ static const char *tracepoint_id_to_name(u64 config) if (id == config) { closedir(evt_dir); closedir(sys_dir); - snprintf(tracepoint_name, 2 * MAX_EVENT_LENGTH, - "%s:%s", sys_dirent.d_name, - evt_dirent.d_name); - return tracepoint_name; + path = calloc(1, sizeof(path)); + path->system = malloc(MAX_EVENT_LENGTH); + if (!path->system) { + free(path); + return NULL; + } + path->name = malloc(MAX_EVENT_LENGTH); + if (!path->name) { + free(path->system); + free(path); + return NULL; + } + strncpy(path->system, sys_dirent.d_name, + MAX_EVENT_LENGTH); + strncpy(path->name, evt_dirent.d_name, + MAX_EVENT_LENGTH); + return path; } } closedir(evt_dir); @@ -208,7 +221,25 @@ static const char *tracepoint_id_to_name(u64 config) cleanup: closedir(sys_dir); - return "unkown"; + return NULL; +} + +#define TP_PATH_LEN (MAX_EVENT_LENGTH * 2 + 1) +static const char *tracepoint_id_to_name(u64 config) +{ + static char buf[TP_PATH_LEN]; + struct tracepoint_path *path; + + path = tracepoint_id_to_path(config); + if (path) { + snprintf(buf, TP_PATH_LEN, "%s:%s", path->system, path->name); + free(path->name); + free(path->system); + free(path); + } else + snprintf(buf, TP_PATH_LEN, "%s:%s", "unknown", "unknown"); + + return buf; } static int is_cache_op_valid(u8 cache_type, u8 cache_op) diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 9b1aeea0163..60704c15961 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -1,10 +1,19 @@ - +#ifndef _PARSE_EVENTS_H +#define _PARSE_EVENTS_H /* * Parse symbolic events/counts passed in as options: */ struct option; +struct tracepoint_path { + char *system; + char *name; + struct tracepoint_path *next; +}; + +extern struct tracepoint_path *tracepoint_id_to_path(u64 config); + extern int nr_counters; extern struct perf_counter_attr attrs[MAX_COUNTERS]; @@ -21,3 +30,5 @@ extern void print_events(void); extern char debugfs_path[]; extern int valid_debugfs_mount(const char *debugfs); + +#endif /* _PARSE_EVENTS_H */ diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c new file mode 100644 index 00000000000..81615279b87 --- /dev/null +++ b/tools/perf/util/trace-event-info.c @@ -0,0 +1,539 @@ +/* + * Copyright (C) 2008,2009, Steven Rostedt <srostedt@redhat.com> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License (not later!) + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ +#define _GNU_SOURCE +#include <dirent.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/wait.h> +#include <pthread.h> +#include <fcntl.h> +#include <unistd.h> +#include <ctype.h> +#include <errno.h> +#include <stdbool.h> + +#include "../perf.h" +#include "trace-event.h" + + +#define VERSION "0.5" + +#define _STR(x) #x +#define STR(x) _STR(x) +#define MAX_PATH 256 + +#define TRACE_CTRL "tracing_on" +#define TRACE "trace" +#define AVAILABLE "available_tracers" +#define CURRENT "current_tracer" +#define ITER_CTRL "trace_options" +#define MAX_LATENCY "tracing_max_latency" + +unsigned int page_size; + +static const char *output_file = "trace.info"; +static int output_fd; + +struct event_list { + struct event_list *next; + const char *event; +}; + +struct events { + struct events *sibling; + struct events *children; + struct events *next; + char *name; +}; + + + +static void die(const char *fmt, ...) +{ + va_list ap; + int ret = errno; + + if (errno) + perror("trace-cmd"); + else + ret = -1; + + va_start(ap, fmt); + fprintf(stderr, " "); + vfprintf(stderr, fmt, ap); + va_end(ap); + + fprintf(stderr, "\n"); + exit(ret); +} + +void *malloc_or_die(unsigned int size) +{ + void *data; + + data = malloc(size); + if (!data) + die("malloc"); + return data; +} + +static const char *find_debugfs(void) +{ + static char debugfs[MAX_PATH+1]; + static int debugfs_found; + char type[100]; + FILE *fp; + + if (debugfs_found) + return debugfs; + + if ((fp = fopen("/proc/mounts","r")) == NULL) + die("Can't open /proc/mounts for read"); + + while (fscanf(fp, "%*s %" + STR(MAX_PATH) + "s %99s %*s %*d %*d\n", + debugfs, type) == 2) { + if (strcmp(type, "debugfs") == 0) + break; + } + fclose(fp); + + if (strcmp(type, "debugfs") != 0) + die("debugfs not mounted, please mount"); + + debugfs_found = 1; + + return debugfs; +} + +/* + * Finds the path to the debugfs/tracing + * Allocates the string and stores it. + */ +static const char *find_tracing_dir(void) +{ + static char *tracing; + static int tracing_found; + const char *debugfs; + + if (tracing_found) + return tracing; + + debugfs = find_debugfs(); + + tracing = malloc_or_die(strlen(debugfs) + 9); + + sprintf(tracing, "%s/tracing", debugfs); + + tracing_found = 1; + return tracing; +} + +static char *get_tracing_file(const char *name) +{ + const char *tracing; + char *file; + + tracing = find_tracing_dir(); + if (!tracing) + return NULL; + + file = malloc_or_die(strlen(tracing) + strlen(name) + 2); + + sprintf(file, "%s/%s", tracing, name); + return file; +} + +static void put_tracing_file(char *file) +{ + free(file); +} + +static ssize_t write_or_die(const void *buf, size_t len) +{ + int ret; + + ret = write(output_fd, buf, len); + if (ret < 0) + die("writing to '%s'", output_file); + + return ret; +} + +int bigendian(void) +{ + unsigned char str[] = { 0x1, 0x2, 0x3, 0x4, 0x0, 0x0, 0x0, 0x0}; + unsigned int *ptr; + + ptr = (unsigned int *)str; + return *ptr == 0x01020304; +} + +static unsigned long long copy_file_fd(int fd) +{ + unsigned long long size = 0; + char buf[BUFSIZ]; + int r; + + do { + r = read(fd, buf, BUFSIZ); + if (r > 0) { + size += r; + write_or_die(buf, r); + } + } while (r > 0); + + return size; +} + +static unsigned long long copy_file(const char *file) +{ + unsigned long long size = 0; + int fd; + + fd = open(file, O_RDONLY); + if (fd < 0) + die("Can't read '%s'", file); + size = copy_file_fd(fd); + close(fd); + + return size; +} + +static unsigned long get_size_fd(int fd) +{ + unsigned long long size = 0; + char buf[BUFSIZ]; + int r; + + do { + r = read(fd, buf, BUFSIZ); + if (r > 0) + size += r; + } while (r > 0); + + lseek(fd, 0, SEEK_SET); + + return size; +} + +static unsigned long get_size(const char *file) +{ + unsigned long long size = 0; + int fd; + + fd = open(file, O_RDONLY); + if (fd < 0) + die("Can't read '%s'", file); + size = get_size_fd(fd); + close(fd); + + return size; +} + +static void read_header_files(void) +{ + unsigned long long size, check_size; + char *path; + int fd; + + path = get_tracing_file("events/header_page"); + fd = open(path, O_RDONLY); + if (fd < 0) + die("can't read '%s'", path); + + /* unfortunately, you can not stat debugfs files for size */ + size = get_size_fd(fd); + + write_or_die("header_page", 12); + write_or_die(&size, 8); + check_size = copy_file_fd(fd); + if (size != check_size) + die("wrong size for '%s' size=%lld read=%lld", + path, size, check_size); + put_tracing_file(path); + + path = get_tracing_file("events/header_event"); + fd = open(path, O_RDONLY); + if (fd < 0) + die("can't read '%s'", path); + + size = get_size_fd(fd); + + write_or_die("header_event", 13); + write_or_die(&size, 8); + check_size = copy_file_fd(fd); + if (size != check_size) + die("wrong size for '%s'", path); + put_tracing_file(path); +} + +static bool name_in_tp_list(char *sys, struct tracepoint_path *tps) +{ + while (tps) { + if (!strcmp(sys, tps->name)) + return true; + tps = tps->next; + } + + return false; +} + +static void copy_event_system(const char *sys, struct tracepoint_path *tps) +{ + unsigned long long size, check_size; + struct dirent *dent; + struct stat st; + char *format; + DIR *dir; + int count = 0; + int ret; + + dir = opendir(sys); + if (!dir) + die("can't read directory '%s'", sys); + + while ((dent = readdir(dir))) { + if (strcmp(dent->d_name, ".") == 0 || + strcmp(dent->d_name, "..") == 0 || + !name_in_tp_list(dent->d_name, tps)) + continue; + format = malloc_or_die(strlen(sys) + strlen(dent->d_name) + 10); + sprintf(format, "%s/%s/format", sys, dent->d_name); + ret = stat(format, &st); + free(format); + if (ret < 0) + continue; + count++; + } + + write_or_die(&count, 4); + + rewinddir(dir); + while ((dent = readdir(dir))) { + if (strcmp(dent->d_name, ".") == 0 || + strcmp(dent->d_name, "..") == 0 || + !name_in_tp_list(dent->d_name, tps)) + continue; + format = malloc_or_die(strlen(sys) + strlen(dent->d_name) + 10); + sprintf(format, "%s/%s/format", sys, dent->d_name); + ret = stat(format, &st); + + if (ret >= 0) { + /* unfortunately, you can not stat debugfs files for size */ + size = get_size(format); + write_or_die(&size, 8); + check_size = copy_file(format); + if (size != check_size) + die("error in size of file '%s'", format); + } + + free(format); + } +} + +static void read_ftrace_files(struct tracepoint_path *tps) +{ + char *path; + + path = get_tracing_file("events/ftrace"); + + copy_event_system(path, tps); + + put_tracing_file(path); +} + +static bool system_in_tp_list(char *sys, struct tracepoint_path *tps) +{ + while (tps) { + if (!strcmp(sys, tps->system)) + return true; + tps = tps->next; + } + + return false; +} + +static void read_event_files(struct tracepoint_path *tps) +{ + struct dirent *dent; + struct stat st; + char *path; + char *sys; + DIR *dir; + int count = 0; + int ret; + + path = get_tracing_file("events"); + + dir = opendir(path); + if (!dir) + die("can't read directory '%s'", path); + + while ((dent = readdir(dir))) { + if (strcmp(dent->d_name, ".") == 0 || + strcmp(dent->d_name, "..") == 0 || + strcmp(dent->d_name, "ftrace") == 0 || + !system_in_tp_list(dent->d_name, tps)) + continue; + sys = malloc_or_die(strlen(path) + strlen(dent->d_name) + 2); + sprintf(sys, "%s/%s", path, dent->d_name); + ret = stat(sys, &st); + free(sys); + if (ret < 0) + continue; + if (S_ISDIR(st.st_mode)) + count++; + } + + write_or_die(&count, 4); + + rewinddir(dir); + while ((dent = readdir(dir))) { + if (strcmp(dent->d_name, ".") == 0 || + strcmp(dent->d_name, "..") == 0 || + strcmp(dent->d_name, "ftrace") == 0 || + !system_in_tp_list(dent->d_name, tps)) + continue; + sys = malloc_or_die(strlen(path) + strlen(dent->d_name) + 2); + sprintf(sys, "%s/%s", path, dent->d_name); + ret = stat(sys, &st); + if (ret >= 0) { + if (S_ISDIR(st.st_mode)) { + write_or_die(dent->d_name, strlen(dent->d_name) + 1); + copy_event_system(sys, tps); + } + } + free(sys); + } + + put_tracing_file(path); +} + +static void read_proc_kallsyms(void) +{ + unsigned int size, check_size; + const char *path = "/proc/kallsyms"; + struct stat st; + int ret; + + ret = stat(path, &st); + if (ret < 0) { + /* not found */ + size = 0; + write_or_die(&size, 4); + return; + } + size = get_size(path); + write_or_die(&size, 4); + check_size = copy_file(path); + if (size != check_size) + die("error in size of file '%s'", path); + +} + +static void read_ftrace_printk(void) +{ + unsigned int size, check_size; + const char *path; + struct stat st; + int ret; + + path = get_tracing_file("printk_formats"); + ret = stat(path, &st); + if (ret < 0) { + /* not found */ + size = 0; + write_or_die(&size, 4); + return; + } + size = get_size(path); + write_or_die(&size, 4); + check_size = copy_file(path); + if (size != check_size) + die("error in size of file '%s'", path); + +} + +static struct tracepoint_path * +get_tracepoints_path(struct perf_counter_attr *pattrs, int nb_counters) +{ + struct tracepoint_path path, *ppath = &path; + int i; + + for (i = 0; i < nb_counters; i++) { + if (pattrs[i].type != PERF_TYPE_TRACEPOINT) + continue; + ppath->next = tracepoint_id_to_path(pattrs[i].config); + if (!ppath->next) + die("%s\n", "No memory to alloc tracepoints list"); + ppath = ppath->next; + } + + return path.next; +} +void read_tracing_data(struct perf_counter_attr *pattrs, int nb_counters) +{ + char buf[BUFSIZ]; + struct tracepoint_path *tps; + + output_fd = open(output_file, O_WRONLY | O_CREAT | O_TRUNC | O_LARGEFILE, 0644); + if (output_fd < 0) + die("creating file '%s'", output_file); + + buf[0] = 23; + buf[1] = 8; + buf[2] = 68; + memcpy(buf + 3, "tracing", 7); + + write_or_die(buf, 10); + + write_or_die(VERSION, strlen(VERSION) + 1); + + /* save endian */ + if (bigendian()) + buf[0] = 1; + else + buf[0] = 0; + + write_or_die(buf, 1); + + /* save size of long */ + buf[0] = sizeof(long); + write_or_die(buf, 1); + + /* save page_size */ + page_size = getpagesize(); + write_or_die(&page_size, 4); + + tps = get_tracepoints_path(pattrs, nb_counters); + + read_header_files(); + read_ftrace_files(tps); + read_event_files(tps); + read_proc_kallsyms(); + read_ftrace_printk(); +} diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c new file mode 100644 index 00000000000..96c5e97ffe7 --- /dev/null +++ b/tools/perf/util/trace-event-parse.c @@ -0,0 +1,2930 @@ +/* + * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License (not later!) + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * The parts for function graph printing was taken and modified from the + * Linux Kernel that were written by Frederic Weisbecker. + */ +#define _GNU_SOURCE +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <errno.h> + +#undef _GNU_SOURCE +#include "../perf.h" +#include "util.h" +#include "trace-event.h" + +int header_page_ts_offset; +int header_page_ts_size; +int header_page_size_offset; +int header_page_size_size; +int header_page_data_offset; +int header_page_data_size; + +static char *input_buf; +static unsigned long long input_buf_ptr; +static unsigned long long input_buf_siz; + +static int cpus; +static int long_size; + +static void init_input_buf(char *buf, unsigned long long size) +{ + input_buf = buf; + input_buf_siz = size; + input_buf_ptr = 0; +} + +struct cmdline { + char *comm; + int pid; +}; + +static struct cmdline *cmdlines; +static int cmdline_count; + +static int cmdline_cmp(const void *a, const void *b) +{ + const struct cmdline *ca = a; + const struct cmdline *cb = b; + + if (ca->pid < cb->pid) + return -1; + if (ca->pid > cb->pid) + return 1; + + return 0; +} + +void parse_cmdlines(char *file, int size __unused) +{ + struct cmdline_list { + struct cmdline_list *next; + char *comm; + int pid; + } *list = NULL, *item; + char *line; + char *next = NULL; + int i; + + line = strtok_r(file, "\n", &next); + while (line) { + item = malloc_or_die(sizeof(*item)); + sscanf(line, "%d %as", &item->pid, + (float *)&item->comm); /* workaround gcc warning */ + item->next = list; + list = item; + line = strtok_r(NULL, "\n", &next); + cmdline_count++; + } + + cmdlines = malloc_or_die(sizeof(*cmdlines) * cmdline_count); + + i = 0; + while (list) { + cmdlines[i].pid = list->pid; + cmdlines[i].comm = list->comm; + i++; + item = list; + list = list->next; + free(item); + } + + qsort(cmdlines, cmdline_count, sizeof(*cmdlines), cmdline_cmp); +} + +static struct func_map { + unsigned long long addr; + char *func; + char *mod; +} *func_list; +static unsigned int func_count; + +static int func_cmp(const void *a, const void *b) +{ + const struct func_map *fa = a; + const struct func_map *fb = b; + + if (fa->addr < fb->addr) + return -1; + if (fa->addr > fb->addr) + return 1; + + return 0; +} + +void parse_proc_kallsyms(char *file, unsigned int size __unused) +{ + struct func_list { + struct func_list *next; + unsigned long long addr; + char *func; + char *mod; + } *list = NULL, *item; + char *line; + char *next = NULL; + char *addr_str; + char ch; + int ret; + int i; + + line = strtok_r(file, "\n", &next); + while (line) { + item = malloc_or_die(sizeof(*item)); + item->mod = NULL; + ret = sscanf(line, "%as %c %as\t[%as", + (float *)&addr_str, /* workaround gcc warning */ + &ch, + (float *)&item->func, + (float *)&item->mod); + item->addr = strtoull(addr_str, NULL, 16); |