1 files changed, 345 insertions, 5 deletions

diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 94775199644e..4ec165a334e2 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -1,18 +1,358 @@
+/*
+ * 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
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+
 #include "../perf.h"
 #include "util.h"
 #include "trace-event.h"
 
-int common_pc(struct scripting_context *context)
+int header_page_size_size;
+int header_page_ts_size;
+int header_page_data_offset;
+
+struct pevent *perf_pevent;
+static struct pevent *pevent;
+
+bool latency_format;
+
+int read_trace_init(int file_bigendian, int host_bigendian)
 {
-	return parse_common_pc(context->event_data);
+	if (pevent)
+		return 0;
+
+	perf_pevent = pevent_alloc();
+	pevent = perf_pevent;
+
+	pevent_set_file_bigendian(pevent, file_bigendian);
+	pevent_set_host_bigendian(pevent, host_bigendian);
+
+	return 0;
 }
 
-int common_flags(struct scripting_context *context)
+static int get_common_field(struct scripting_context *context,
+			    int *offset, int *size, const char *type)
 {
-	return parse_common_flags(context->event_data);
+	struct event_format *event;
+	struct format_field *field;
+
+	if (!*size) {
+		if (!pevent->events)
+			return 0;
+
+		event = pevent->events[0];
+		field = pevent_find_common_field(event, type);
+		if (!field)
+			return 0;
+		*offset = field->offset;
+		*size = field->size;
+	}
+
+	return pevent_read_number(pevent, context->event_data + *offset, *size);
 }
 
 int common_lock_depth(struct scripting_context *context)
 {
-	return parse_common_lock_depth(context->event_data);
+	static int offset;
+	static int size;
+	int ret;
+
+	ret = get_common_field(context, &size, &offset,
+			       "common_lock_depth");
+	if (ret < 0)
+		return -1;
+
+	return ret;
+}
+
+int common_flags(struct scripting_context *context)
+{
+	static int offset;
+	static int size;
+	int ret;
+
+	ret = get_common_field(context, &size, &offset,
+			       "common_flags");
+	if (ret < 0)
+		return -1;
+
+	return ret;
+}
+
+int common_pc(struct scripting_context *context)
+{
+	static int offset;
+	static int size;
+	int ret;
+
+	ret = get_common_field(context, &size, &offset,
+			       "common_preempt_count");
+	if (ret < 0)
+		return -1;
+
+	return ret;
+}
+
+unsigned long long
+raw_field_value(struct event_format *event, const char *name, void *data)
+{
+	struct format_field *field;
+	unsigned long long val;
+
+	field = pevent_find_any_field(event, name);
+	if (!field)
+		return 0ULL;
+
+	pevent_read_number_field(field, data, &val);
+
+	return val;
+}
+
+void *raw_field_ptr(struct event_format *event, const char *name, void *data)
+{
+	struct format_field *field;
+
+	field = pevent_find_any_field(event, name);
+	if (!field)
+		return NULL;
+
+	if (field->flags & FIELD_IS_DYNAMIC) {
+		int offset;
+
+		offset = *(int *)(data + field->offset);
+		offset &= 0xffff;
+
+		return data + offset;
+	}
+
+	return data + field->offset;
+}
+
+int trace_parse_common_type(void *data)
+{
+	struct record record;
+
+	record.data = data;
+	return pevent_data_type(pevent, &record);
+}
+
+int trace_parse_common_pid(void *data)
+{
+	struct record record;
+
+	record.data = data;
+	return pevent_data_pid(pevent, &record);
+}
+
+unsigned long long read_size(void *ptr, int size)
+{
+	return pevent_read_number(pevent, ptr, size);
+}
+
+struct event_format *trace_find_event(int type)
+{
+	return pevent_find_event(pevent, type);
+}
+
+
+void print_trace_event(int cpu, void *data, int size)
+{
+	struct event_format *event;
+	struct record record;
+	struct trace_seq s;
+	int type;
+
+	type = trace_parse_common_type(data);
+
+	event = trace_find_event(type);
+	if (!event) {
+		warning("ug! no event found for type %d", type);
+		return;
+	}
+
+	memset(&record, 0, sizeof(record));
+	record.cpu = cpu;
+	record.size = size;
+	record.data = data;
+
+	trace_seq_init(&s);
+	pevent_print_event(pevent, &s, &record);
+	trace_seq_do_printf(&s);
+	printf("\n");
+}
+
+void print_event(int cpu, void *data, int size, unsigned long long nsecs,
+		  char *comm)
+{
+	struct record record;
+	struct trace_seq s;
+	int pid;
+
+	pevent->latency_format = latency_format;
+
+	record.ts = nsecs;
+	record.cpu = cpu;
+	record.size = size;
+	record.data = data;
+	pid = pevent_data_pid(pevent, &record);
+
+	if (!pevent_pid_is_registered(pevent, pid))
+		pevent_register_comm(pevent, comm, pid);
+
+	trace_seq_init(&s);
+	pevent_print_event(pevent, &s, &record);
+	trace_seq_do_printf(&s);
+	printf("\n");
+}
+
+void parse_proc_kallsyms(char *file, unsigned int size __unused)
+{
+	unsigned long long addr;
+	char *func;
+	char *line;
+	char *next = NULL;
+	char *addr_str;
+	char *mod;
+	char ch;
+
+	line = strtok_r(file, "\n", &next);
+	while (line) {
+		mod = NULL;
+		sscanf(line, "%as %c %as\t[%as",
+		       (float *)(void *)&addr_str, /* workaround gcc warning */
+		       &ch, (float *)(void *)&func, (float *)(void *)&mod);
+		addr = strtoull(addr_str, NULL, 16);
+		free(addr_str);
+
+		/* truncate the extra ']' */
+		if (mod)
+			mod[strlen(mod) - 1] = 0;
+
+		pevent_register_function(pevent, func, addr, mod);
+		free(func);
+		free(mod);
+
+		line = strtok_r(NULL, "\n", &next);
+	}
+}
+
+void parse_ftrace_printk(char *file, unsigned int size __unused)
+{
+	unsigned long long addr;
+	char *printk;
+	char *line;
+	char *next = NULL;
+	char *addr_str;
+	char *fmt;
+
+	line = strtok_r(file, "\n", &next);
+	while (line) {
+		addr_str = strtok_r(line, ":", &fmt);
+		if (!addr_str) {
+			warning("printk format with empty entry");
+			break;
+		}
+		addr = strtoull(addr_str, NULL, 16);
+		/* fmt still has a space, skip it */
+		printk = strdup(fmt+1);
+		line = strtok_r(NULL, "\n", &next);
+		pevent_register_print_string(pevent, printk, addr);
+	}
+}
+
+int parse_ftrace_file(char *buf, unsigned long size)
+{
+	return pevent_parse_event(pevent, buf, size, "ftrace");
+}
+
+int parse_event_file(char *buf, unsigned long size, char *sys)
+{
+	return pevent_parse_event(pevent, buf, size, sys);
+}
+
+struct event_format *trace_find_next_event(struct event_format *event)
+{
+	static int idx;
+
+	if (!pevent->events)
+		return NULL;
+
+	if (!event) {
+		idx = 0;
+		return pevent->events[0];
+	}
+
+	if (idx < pevent->nr_events && event == pevent->events[idx]) {
+		idx++;
+		if (idx == pevent->nr_events)
+			return NULL;
+		return pevent->events[idx];
+	}
+
+	for (idx = 1; idx < pevent->nr_events; idx++) {
+		if (event == pevent->events[idx - 1])
+			return pevent->events[idx];
+	}
+	return NULL;
+}
+
+struct flag {
+	const char *name;
+	unsigned long long value;
+};
+
+static const struct flag flags[] = {
+	{ "HI_SOFTIRQ", 0 },
+	{ "TIMER_SOFTIRQ", 1 },
+	{ "NET_TX_SOFTIRQ", 2 },
+	{ "NET_RX_SOFTIRQ", 3 },
+	{ "BLOCK_SOFTIRQ", 4 },
+	{ "BLOCK_IOPOLL_SOFTIRQ", 5 },
+	{ "TASKLET_SOFTIRQ", 6 },
+	{ "SCHED_SOFTIRQ", 7 },
+	{ "HRTIMER_SOFTIRQ", 8 },
+	{ "RCU_SOFTIRQ", 9 },
+
+	{ "HRTIMER_NORESTART", 0 },
+	{ "HRTIMER_RESTART", 1 },
+};
+
+unsigned long long eval_flag(const char *flag)
+{
+	int i;
+
+	/*
+	 * Some flags in the format files do not get converted.
+	 * If the flag is not numeric, see if it is something that
+	 * we already know about.
+	 */
+	if (isdigit(flag[0]))
+		return strtoull(flag, NULL, 0);
+
+	for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++)
+		if (strcmp(flags[i].name, flag) == 0)
+			return flags[i].value;
+
+	return 0;
 }