[PATCH 15/21] perf: Export trace event utils

[Borislav Petkov]

From: Borislav Petkov <borislav.petkov@xxxxxxx>

Those are indirectly needed by parse-events.c too.

Signed-off-by: Borislav Petkov <borislav.petkov@xxxxxxx>
---
 tools/lib/Makefile                  |    3 +
 tools/lib/trace/trace-event-info.c  |  563 ++++++
 tools/lib/trace/trace-event-parse.c | 3233 +++++++++++++++++++++++++++++++++++
 tools/lib/trace/trace-event-read.c  |  539 ++++++
 tools/perf/Makefile                 |    3 -
 tools/perf/util/trace-event-info.c  |  563 ------
 tools/perf/util/trace-event-parse.c | 3233 -----------------------------------
 tools/perf/util/trace-event-read.c  |  539 ------
 8 files changed, 4338 insertions(+), 4338 deletions(-)
 create mode 100644 tools/lib/trace/trace-event-info.c
 create mode 100644 tools/lib/trace/trace-event-parse.c
 create mode 100644 tools/lib/trace/trace-event-read.c
 delete mode 100644 tools/perf/util/trace-event-info.c
 delete mode 100644 tools/perf/util/trace-event-parse.c
 delete mode 100644 tools/perf/util/trace-event-read.c

diff --git a/tools/lib/Makefile b/tools/lib/Makefile
index cabef46..795fa3a 100644
--- a/tools/lib/Makefile
+++ b/tools/lib/Makefile
@@ -49,6 +49,9 @@ LIB_OBJS += $(OUTPUT)perf/hist.o
 LIB_OBJS += $(OUTPUT)perf/thread.o
 LIB_OBJS += $(OUTPUT)perf/sort.o
 LIB_OBJS += $(OUTPUT)perf/event.o
+LIB_OBJS += $(OUTPUT)trace/trace-event-read.o
+LIB_OBJS += $(OUTPUT)trace/trace-event-info.o
+LIB_OBJS += $(OUTPUT)trace/trace-event-parse.o
 
 LIBFILE = lklib.a
 
diff --git a/tools/lib/trace/trace-event-info.c b/tools/lib/trace/trace-event-info.c
new file mode 100644
index 0000000..e1ad23f
--- /dev/null
+++ b/tools/lib/trace/trace-event-info.c
@@ -0,0 +1,563 @@
+/*
+ * Copyright (C) 2008,2009, Steven Rostedt <srostedt@xxxxxxxxxx>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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 <mntent.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 <linux/kernel.h>
+
+#include <perf.h>
+#include <util/trace-event.h>
+#include <lk/debugfs.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)
+{
+	const char *path = debugfs_mount(NULL);
+
+	if (!path)
+		die("Your kernel not support debugfs filesystem");
+
+	return path;
+}
+
+/*
+ * 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 calc_data_size;
+
+static ssize_t write_or_die(const void *buf, size_t len)
+{
+	int ret;
+
+	if (calc_data_size) {
+		calc_data_size += len;
+		return len;
+	}
+
+	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 *)(void *)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);
+	close(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);
+	close(fd);
+}
+
+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 (dent->d_type != DT_DIR ||
+		    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 (dent->d_type != DT_DIR ||
+		    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);
+	}
+	closedir(dir);
+}
+
+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 (dent->d_type != DT_DIR ||
+		    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;
+		count++;
+	}
+
+	write_or_die(&count, 4);
+
+	rewinddir(dir);
+	while ((dent = readdir(dir))) {
+		if (dent->d_type != DT_DIR ||
+		    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) {
+			write_or_die(dent->d_name, strlen(dent->d_name) + 1);
+			copy_event_system(sys, tps);
+		}
+		free(sys);
+	}
+
+	closedir(dir);
+	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;
+	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);
+		goto out;
+	}
+	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);
+out:
+	put_tracing_file(path);
+}
+
+static struct tracepoint_path *
+get_tracepoints_path(struct perf_event_attr *pattrs, int nb_events)
+{
+	struct tracepoint_path path, *ppath = &path;
+	int i, nr_tracepoints = 0;
+
+	for (i = 0; i < nb_events; i++) {
+		if (pattrs[i].type != PERF_TYPE_TRACEPOINT)
+			continue;
+		++nr_tracepoints;
+		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 nr_tracepoints > 0 ? path.next : NULL;
+}
+
+bool have_tracepoints(struct perf_event_attr *pattrs, int nb_events)
+{
+	int i;
+
+	for (i = 0; i < nb_events; i++)
+		if (pattrs[i].type == PERF_TYPE_TRACEPOINT)
+			return true;
+
+	return false;
+}
+
+int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events)
+{
+	char buf[BUFSIZ];
+	struct tracepoint_path *tps = get_tracepoints_path(pattrs, nb_events);
+
+	/*
+	 * What? No tracepoints? No sense writing anything here, bail out.
+	 */
+	if (tps == NULL)
+		return -1;
+
+	output_fd = fd;
+
+	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 = sysconf(_SC_PAGESIZE);
+	write_or_die(&page_size, 4);
+
+	read_header_files();
+	read_ftrace_files(tps);
+	read_event_files(tps);
+	read_proc_kallsyms();
+	read_ftrace_printk();
+
+	return 0;
+}
+
+ssize_t read_tracing_data_size(int fd, struct perf_event_attr *pattrs,
+			       int nb_events)
+{
+	ssize_t size;
+	int err = 0;
+
+	calc_data_size = 1;
+	err = read_tracing_data(fd, pattrs, nb_events);
+	size = calc_data_size - 1;
+	calc_data_size = 0;
+
+	if (err < 0)
+		return err;
+
+	return size;
+}
diff --git a/tools/lib/trace/trace-event-parse.c b/tools/lib/trace/trace-event-parse.c
new file mode 100644
index 0000000..d76c350
--- /dev/null
+++ b/tools/lib/trace/trace-event-parse.c
@@ -0,0 +1,3233 @@
+/*
+ * Copyright (C) 2009, Steven Rostedt <srostedt@xxxxxxxxxx>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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 <lk/util.h>
+#include <util/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_overwrite_offset;
+int header_page_overwrite_size;
+int header_page_data_offset;
+int header_page_data_size;
+
+bool latency_format;
+
+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 int is_flag_field;
+static int is_symbolic_field;
+
+static struct format_field *
+find_any_field(struct event *event, const char *name);
+
+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 *)(void *)&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 *)(void *)&addr_str, /* workaround gcc warning */
+			     &ch,
+			     (float *)(void *)&item->func,
+			     (float *)(void *)&item->mod);
+		item->addr = strtoull(addr_str, NULL, 16);
+		free(addr_str);
+
+		/* truncate the extra ']' */
+		if (item->mod)
+			item->mod[strlen(item->mod) - 1] = 0;
+
+
+		item->next = list;
+		list = item;
+		line = strtok_r(NULL, "\n", &next);
+		func_count++;
+	}
+
+	func_list = malloc_or_die(sizeof(*func_list) * (func_count + 1));
+
+	i = 0;
+	while (list) {
+		func_list[i].func = list->func;
+		func_list[i].addr = list->addr;
+		func_list[i].mod = list->mod;
+		i++;
+		item = list;
+		list = list->next;
+		free(item);
+	}
+
+	qsort(func_list, func_count, sizeof(*func_list), func_cmp);
+
+	/*
+	 * Add a special record at the end.
+	 */
+	func_list[func_count].func = NULL;
+	func_list[func_count].addr = 0;
+	func_list[func_count].mod = NULL;
+}
+
+/*
+ * We are searching for a record in between, not an exact
+ * match.
+ */
+static int func_bcmp(const void *a, const void *b)
+{
+	const struct func_map *fa = a;
+	const struct func_map *fb = b;
+
+	if ((fa->addr == fb->addr) ||
+
+	    (fa->addr > fb->addr &&
+	     fa->addr < (fb+1)->addr))
+		return 0;
+
+	if (fa->addr < fb->addr)
+		return -1;
+
+	return 1;
+}
+
+static struct func_map *find_func(unsigned long long addr)
+{
+	struct func_map *func;
+	struct func_map key;
+
+	key.addr = addr;
+
+	func = bsearch(&key, func_list, func_count, sizeof(*func_list),
+		       func_bcmp);
+
+	return func;
+}
+
+void print_funcs(void)
+{
+	int i;
+
+	for (i = 0; i < (int)func_count; i++) {
+		printf("%016llx %s",
+		       func_list[i].addr,
+		       func_list[i].func);
+		if (func_list[i].mod)
+			printf(" [%s]\n", func_list[i].mod);
+		else
+			printf("\n");
+	}
+}
+
+static struct printk_map {
+	unsigned long long		addr;
+	char				*printk;
+} *printk_list;
+static unsigned int printk_count;
+
+static int printk_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;
+}
+
+static struct printk_map *find_printk(unsigned long long addr)
+{
+	struct printk_map *printk;
+	struct printk_map key;
+
+	key.addr = addr;
+
+	printk = bsearch(&key, printk_list, printk_count, sizeof(*printk_list),
+			 printk_cmp);
+
+	return printk;
+}
+
+void parse_ftrace_printk(char *file, unsigned int size __unused)
+{
+	struct printk_list {
+		struct printk_list	*next;
+		unsigned long long	addr;
+		char			*printk;
+	} *list = NULL, *item;
+	char *line;
+	char *next = NULL;
+	char *addr_str;
+	int i;
+
+	line = strtok_r(file, "\n", &next);
+	while (line) {
+		addr_str = strsep(&line, ":");
+		if (!line) {
+			warning("error parsing print strings");
+			break;
+		}
+		item = malloc_or_die(sizeof(*item));
+		item->addr = strtoull(addr_str, NULL, 16);
+		/* fmt still has a space, skip it */
+		item->printk = strdup(line+1);
+		item->next = list;
+		list = item;
+		line = strtok_r(NULL, "\n", &next);
+		printk_count++;
+	}
+
+	printk_list = malloc_or_die(sizeof(*printk_list) * printk_count + 1);
+
+	i = 0;
+	while (list) {
+		printk_list[i].printk = list->printk;
+		printk_list[i].addr = list->addr;
+		i++;
+		item = list;
+		list = list->next;
+		free(item);
+	}
+
+	qsort(printk_list, printk_count, sizeof(*printk_list), printk_cmp);
+}
+
+void print_printk(void)
+{
+	int i;
+
+	for (i = 0; i < (int)printk_count; i++) {
+		printf("%016llx %s\n",
+		       printk_list[i].addr,
+		       printk_list[i].printk);
+	}
+}
+
+static struct event *alloc_event(void)
+{
+	struct event *event;
+
+	event = malloc_or_die(sizeof(*event));
+	memset(event, 0, sizeof(*event));
+
+	return event;
+}
+
+enum event_type {
+	EVENT_ERROR,
+	EVENT_NONE,
+	EVENT_SPACE,
+	EVENT_NEWLINE,
+	EVENT_OP,
+	EVENT_DELIM,
+	EVENT_ITEM,
+	EVENT_DQUOTE,
+	EVENT_SQUOTE,
+};
+
+static struct event *event_list;
+
+static void add_event(struct event *event)
+{
+	event->next = event_list;
+	event_list = event;
+}
+
+static int event_item_type(enum event_type type)
+{
+	switch (type) {
+	case EVENT_ITEM ... EVENT_SQUOTE:
+		return 1;
+	case EVENT_ERROR ... EVENT_DELIM:
+	default:
+		return 0;
+	}
+}
+
+static void free_arg(struct print_arg *arg)
+{
+	if (!arg)
+		return;
+
+	switch (arg->type) {
+	case PRINT_ATOM:
+		if (arg->atom.atom)
+			free(arg->atom.atom);
+		break;
+	case PRINT_NULL:
+	case PRINT_FIELD ... PRINT_OP:
+	default:
+		/* todo */
+		break;
+	}
+
+	free(arg);
+}
+
+static enum event_type get_type(int ch)
+{
+	if (ch == '\n')
+		return EVENT_NEWLINE;
+	if (isspace(ch))
+		return EVENT_SPACE;
+	if (isalnum(ch) || ch == '_')
+		return EVENT_ITEM;
+	if (ch == '\'')
+		return EVENT_SQUOTE;
+	if (ch == '"')
+		return EVENT_DQUOTE;
+	if (!isprint(ch))
+		return EVENT_NONE;
+	if (ch == '(' || ch == ')' || ch == ',')
+		return EVENT_DELIM;
+
+	return EVENT_OP;
+}
+
+static int __read_char(void)
+{
+	if (input_buf_ptr >= input_buf_siz)
+		return -1;
+
+	return input_buf[input_buf_ptr++];
+}
+
+static int __peek_char(void)
+{
+	if (input_buf_ptr >= input_buf_siz)
+		return -1;
+
+	return input_buf[input_buf_ptr];
+}
+
+static enum event_type __read_token(char **tok)
+{
+	char buf[BUFSIZ];
+	int ch, last_ch, quote_ch, next_ch;
+	int i = 0;
+	int tok_size = 0;
+	enum event_type type;
+
+	*tok = NULL;
+
+
+	ch = __read_char();
+	if (ch < 0)
+		return EVENT_NONE;
+
+	type = get_type(ch);
+	if (type == EVENT_NONE)
+		return type;
+
+	buf[i++] = ch;
+
+	switch (type) {
+	case EVENT_NEWLINE:
+	case EVENT_DELIM:
+		*tok = malloc_or_die(2);
+		(*tok)[0] = ch;
+		(*tok)[1] = 0;
+		return type;
+
+	case EVENT_OP:
+		switch (ch) {
+		case '-':
+			next_ch = __peek_char();
+			if (next_ch == '>') {
+				buf[i++] = __read_char();
+				break;
+			}
+			/* fall through */
+		case '+':
+		case '|':
+		case '&':
+		case '>':
+		case '<':
+			last_ch = ch;
+			ch = __peek_char();
+			if (ch != last_ch)
+				goto test_equal;
+			buf[i++] = __read_char();
+			switch (last_ch) {
+			case '>':
+			case '<':
+				goto test_equal;
+			default:
+				break;
+			}
+			break;
+		case '!':
+		case '=':
+			goto test_equal;
+		default: /* what should we do instead? */
+			break;
+		}
+		buf[i] = 0;
+		*tok = strdup(buf);
+		return type;
+
+ test_equal:
+		ch = __peek_char();
+		if (ch == '=')
+			buf[i++] = __read_char();
+		break;
+
+	case EVENT_DQUOTE:
+	case EVENT_SQUOTE:
+		/* don't keep quotes */
+		i--;
+		quote_ch = ch;
+		last_ch = 0;
+		do {
+			if (i == (BUFSIZ - 1)) {
+				buf[i] = 0;
+				if (*tok) {
+					*tok = realloc(*tok, tok_size + BUFSIZ);
+					if (!*tok)
+						return EVENT_NONE;
+					strcat(*tok, buf);
+				} else
+					*tok = strdup(buf);
+
+				if (!*tok)
+					return EVENT_NONE;
+				tok_size += BUFSIZ;
+				i = 0;
+			}
+			last_ch = ch;
+			ch = __read_char();
+			buf[i++] = ch;
+			/* the '\' '\' will cancel itself */
+			if (ch == '\\' && last_ch == '\\')
+				last_ch = 0;
+		} while (ch != quote_ch || last_ch == '\\');
+		/* remove the last quote */
+		i--;
+		goto out;
+
+	case EVENT_ERROR ... EVENT_SPACE:
+	case EVENT_ITEM:
+	default:
+		break;
+	}
+
+	while (get_type(__peek_char()) == type) {
+		if (i == (BUFSIZ - 1)) {
+			buf[i] = 0;
+			if (*tok) {
+				*tok = realloc(*tok, tok_size + BUFSIZ);
+				if (!*tok)
+					return EVENT_NONE;
+				strcat(*tok, buf);
+			} else
+				*tok = strdup(buf);
+
+			if (!*tok)
+				return EVENT_NONE;
+			tok_size += BUFSIZ;
+			i = 0;
+		}
+		ch = __read_char();
+		buf[i++] = ch;
+	}
+
+ out:
+	buf[i] = 0;
+	if (*tok) {
+		*tok = realloc(*tok, tok_size + i);
+		if (!*tok)
+			return EVENT_NONE;
+		strcat(*tok, buf);
+	} else
+		*tok = strdup(buf);
+	if (!*tok)
+		return EVENT_NONE;
+
+	return type;
+}
+
+static void free_token(char *tok)
+{
+	if (tok)
+		free(tok);
+}
+
+static enum event_type read_token(char **tok)
+{
+	enum event_type type;
+
+	for (;;) {
+		type = __read_token(tok);
+		if (type != EVENT_SPACE)
+			return type;
+
+		free_token(*tok);
+	}
+
+	/* not reached */
+	return EVENT_NONE;
+}
+
+/* no newline */
+static enum event_type read_token_item(char **tok)
+{
+	enum event_type type;
+
+	for (;;) {
+		type = __read_token(tok);
+		if (type != EVENT_SPACE && type != EVENT_NEWLINE)
+			return type;
+
+		free_token(*tok);
+	}
+
+	/* not reached */
+	return EVENT_NONE;
+}
+
+static int test_type(enum event_type type, enum event_type expect)
+{
+	if (type != expect) {
+		warning("Error: expected type %d but read %d",
+		    expect, type);
+		return -1;
+	}
+	return 0;
+}
+
+static int __test_type_token(enum event_type type, char *token,
+			     enum event_type expect, const char *expect_tok,
+			     bool warn)
+{
+	if (type != expect) {
+		if (warn)
+			warning("Error: expected type %d but read %d",
+				expect, type);
+		return -1;
+	}
+
+	if (strcmp(token, expect_tok) != 0) {
+		if (warn)
+			warning("Error: expected '%s' but read '%s'",
+				expect_tok, token);
+		return -1;
+	}
+	return 0;
+}
+
+static int test_type_token(enum event_type type, char *token,
+			   enum event_type expect, const char *expect_tok)
+{
+	return __test_type_token(type, token, expect, expect_tok, true);
+}
+
+static int __read_expect_type(enum event_type expect, char **tok, int newline_ok)
+{
+	enum event_type type;
+
+	if (newline_ok)
+		type = read_token(tok);
+	else
+		type = read_token_item(tok);
+	return test_type(type, expect);
+}
+
+static int read_expect_type(enum event_type expect, char **tok)
+{
+	return __read_expect_type(expect, tok, 1);
+}
+
+static int __read_expected(enum event_type expect, const char *str,
+			   int newline_ok, bool warn)
+{
+	enum event_type type;
+	char *token;
+	int ret;
+
+	if (newline_ok)
+		type = read_token(&token);
+	else
+		type = read_token_item(&token);
+
+	ret = __test_type_token(type, token, expect, str, warn);
+
+	free_token(token);
+
+	return ret;
+}
+
+static int read_expected(enum event_type expect, const char *str)
+{
+	return __read_expected(expect, str, 1, true);
+}
+
+static int read_expected_item(enum event_type expect, const char *str)
+{
+	return __read_expected(expect, str, 0, true);
+}
+
+static char *event_read_name(void)
+{
+	char *token;
+
+	if (read_expected(EVENT_ITEM, "name") < 0)
+		return NULL;
+
+	if (read_expected(EVENT_OP, ":") < 0)
+		return NULL;
+
+	if (read_expect_type(EVENT_ITEM, &token) < 0)
+		goto fail;
+
+	return token;
+
+ fail:
+	free_token(token);
+	return NULL;
+}
+
+static int event_read_id(void)
+{
+	char *token;
+	int id;
+
+	if (read_expected_item(EVENT_ITEM, "ID") < 0)
+		return -1;
+
+	if (read_expected(EVENT_OP, ":") < 0)
+		return -1;
+
+	if (read_expect_type(EVENT_ITEM, &token) < 0)
+		goto fail;
+
+	id = strtoul(token, NULL, 0);
+	free_token(token);
+	return id;
+
+ fail:
+	free_token(token);
+	return -1;
+}
+
+static int field_is_string(struct format_field *field)
+{
+	if ((field->flags & FIELD_IS_ARRAY) &&
+	    (!strstr(field->type, "char") || !strstr(field->type, "u8") ||
+	     !strstr(field->type, "s8")))
+		return 1;
+
+	return 0;
+}
+
+static int field_is_dynamic(struct format_field *field)
+{
+	if (!strncmp(field->type, "__data_loc", 10))
+		return 1;
+
+	return 0;
+}
+
+static int event_read_fields(struct event *event, struct format_field **fields)
+{
+	struct format_field *field = NULL;
+	enum event_type type;
+	char *token;
+	char *last_token;
+	int count = 0;
+
+	do {
+		type = read_token(&token);
+		if (type == EVENT_NEWLINE) {
+			free_token(token);
+			return count;
+		}
+
+		count++;
+
+		if (test_type_token(type, token, EVENT_ITEM, "field"))
+			goto fail;
+		free_token(token);
+
+		type = read_token(&token);
+		/*
+		 * The ftrace fields may still use the "special" name.
+		 * Just ignore it.
+		 */
+		if (event->flags & EVENT_FL_ISFTRACE &&
+		    type == EVENT_ITEM && strcmp(token, "special") == 0) {
+			free_token(token);
+			type = read_token(&token);
+		}
+
+		if (test_type_token(type, token, EVENT_OP, ":") < 0)
+			return -1;
+
+		if (read_expect_type(EVENT_ITEM, &token) < 0)
+			goto fail;
+
+		last_token = token;
+
+		field = malloc_or_die(sizeof(*field));
+		memset(field, 0, sizeof(*field));
+
+		/* read the rest of the type */
+		for (;;) {
+			type = read_token(&token);
+			if (type == EVENT_ITEM ||
+			    (type == EVENT_OP && strcmp(token, "*") == 0) ||
+			    /*
+			     * Some of the ftrace fields are broken and have
+			     * an illegal "." in them.
+			     */
+			    (event->flags & EVENT_FL_ISFTRACE &&
+			     type == EVENT_OP && strcmp(token, ".") == 0)) {
+
+				if (strcmp(token, "*") == 0)
+					field->flags |= FIELD_IS_POINTER;
+
+				if (field->type) {
+					field->type = realloc(field->type,
+							      strlen(field->type) +
+							      strlen(last_token) + 2);
+					strcat(field->type, " ");
+					strcat(field->type, last_token);
+				} else
+					field->type = last_token;
+				last_token = token;
+				continue;
+			}
+
+			break;
+		}
+
+		if (!field->type) {
+			die("no type found");
+			goto fail;
+		}
+		field->name = last_token;
+
+		if (test_type(type, EVENT_OP))
+			goto fail;
+
+		if (strcmp(token, "[") == 0) {
+			enum event_type last_type = type;
+			char *brackets = token;
+			int len;
+
+			field->flags |= FIELD_IS_ARRAY;
+
+			type = read_token(&token);
+		        while (strcmp(token, "]") != 0) {
+				if (last_type == EVENT_ITEM &&
+				    type == EVENT_ITEM)
+					len = 2;
+				else
+					len = 1;
+				last_type = type;
+
+				brackets = realloc(brackets,
+						   strlen(brackets) +
+						   strlen(token) + len);
+				if (len == 2)
+					strcat(brackets, " ");
+				strcat(brackets, token);
+				free_token(token);
+				type = read_token(&token);
+				if (type == EVENT_NONE) {
+					die("failed to find token");
+					goto fail;
+				}
+			}
+
+			free_token(token);
+
+			brackets = realloc(brackets, strlen(brackets) + 2);
+			strcat(brackets, "]");
+
+			/* add brackets to type */
+
+			type = read_token(&token);
+			/*
+			 * If the next token is not an OP, then it is of
+			 * the format: type [] item;
+			 */
+			if (type == EVENT_ITEM) {
+				field->type = realloc(field->type,
+						      strlen(field->type) +
+						      strlen(field->name) +
+						      strlen(brackets) + 2);
+				strcat(field->type, " ");
+				strcat(field->type, field->name);
+				free_token(field->name);
+				strcat(field->type, brackets);
+				field->name = token;
+				type = read_token(&token);
+			} else {
+				field->type = realloc(field->type,
+						      strlen(field->type) +
+						      strlen(brackets) + 1);
+				strcat(field->type, brackets);
+			}
+			free(brackets);
+		}
+
+		if (field_is_string(field)) {
+			field->flags |= FIELD_IS_STRING;
+			if (field_is_dynamic(field))
+				field->flags |= FIELD_IS_DYNAMIC;
+		}
+
+		if (test_type_token(type, token,  EVENT_OP, ";"))
+			goto fail;
+		free_token(token);
+
+		if (read_expected(EVENT_ITEM, "offset") < 0)
+			goto fail_expect;
+
+		if (read_expected(EVENT_OP, ":") < 0)
+			goto fail_expect;
+
+		if (read_expect_type(EVENT_ITEM, &token))
+			goto fail;
+		field->offset = strtoul(token, NULL, 0);
+		free_token(token);
+
+		if (read_expected(EVENT_OP, ";") < 0)
+			goto fail_expect;
+
+		if (read_expected(EVENT_ITEM, "size") < 0)
+			goto fail_expect;
+
+		if (read_expected(EVENT_OP, ":") < 0)
+			goto fail_expect;
+
+		if (read_expect_type(EVENT_ITEM, &token))
+			goto fail;
+		field->size = strtoul(token, NULL, 0);
+		free_token(token);
+
+		if (read_expected(EVENT_OP, ";") < 0)
+			goto fail_expect;
+
+		type = read_token(&token);
+		if (type != EVENT_NEWLINE) {
+			/* newer versions of the kernel have a "signed" type */
+			if (test_type_token(type, token, EVENT_ITEM, "signed"))
+				goto fail;
+
+			free_token(token);
+
+			if (read_expected(EVENT_OP, ":") < 0)
+				goto fail_expect;
+
+			if (read_expect_type(EVENT_ITEM, &token))
+				goto fail;
+
+			if (strtoul(token, NULL, 0))
+				field->flags |= FIELD_IS_SIGNED;
+
+			free_token(token);
+			if (read_expected(EVENT_OP, ";") < 0)
+				goto fail_expect;
+
+			if (read_expect_type(EVENT_NEWLINE, &token))
+				goto fail;
+		}
+
+		free_token(token);
+
+		*fields = field;
+		fields = &field->next;
+
+	} while (1);
+
+	return 0;
+
+fail:
+	free_token(token);
+fail_expect:
+	if (field)
+		free(field);
+	return -1;
+}
+
+static int event_read_format(struct event *event)
+{
+	char *token;
+	int ret;
+
+	if (read_expected_item(EVENT_ITEM, "format") < 0)
+		return -1;
+
+	if (read_expected(EVENT_OP, ":") < 0)
+		return -1;
+
+	if (read_expect_type(EVENT_NEWLINE, &token))
+		goto fail;
+	free_token(token);
+
+	ret = event_read_fields(event, &event->format.common_fields);
+	if (ret < 0)
+		return ret;
+	event->format.nr_common = ret;
+
+	ret = event_read_fields(event, &event->format.fields);
+	if (ret < 0)
+		return ret;
+	event->format.nr_fields = ret;
+
+	return 0;
+
+ fail:
+	free_token(token);
+	return -1;
+}
+
+enum event_type
+process_arg_token(struct event *event, struct print_arg *arg,
+		  char **tok, enum event_type type);
+
+static enum event_type
+process_arg(struct event *event, struct print_arg *arg, char **tok)
+{
+	enum event_type type;
+	char *token;
+
+	type = read_token(&token);
+	*tok = token;
+
+	return process_arg_token(event, arg, tok, type);
+}
+
+static enum event_type
+process_cond(struct event *event, struct print_arg *top, char **tok)
+{
+	struct print_arg *arg, *left, *right;
+	enum event_type type;
+	char *token = NULL;
+
+	arg = malloc_or_die(sizeof(*arg));
+	memset(arg, 0, sizeof(*arg));
+
+	left = malloc_or_die(sizeof(*left));
+
+	right = malloc_or_die(sizeof(*right));
+
+	arg->type = PRINT_OP;
+	arg->op.left = left;
+	arg->op.right = right;
+
+	*tok = NULL;
+	type = process_arg(event, left, &token);
+	if (test_type_token(type, token, EVENT_OP, ":"))
+		goto out_free;
+
+	arg->op.op = token;
+
+	type = process_arg(event, right, &token);
+
+	top->op.right = arg;
+
+	*tok = token;
+	return type;
+
+out_free:
+	free_token(*tok);
+	free(right);
+	free(left);
+	free_arg(arg);
+	return EVENT_ERROR;
+}
+
+static enum event_type
+process_array(struct event *event, struct print_arg *top, char **tok)
+{
+	struct print_arg *arg;
+	enum event_type type;
+	char *token = NULL;
+
+	arg = malloc_or_die(sizeof(*arg));
+	memset(arg, 0, sizeof(*arg));
+
+	*tok = NULL;
+	type = process_arg(event, arg, &token);
+	if (test_type_token(type, token, EVENT_OP, "]"))
+		goto out_free;
+
+	top->op.right = arg;
+
+	free_token(token);
+	type = read_token_item(&token);
+	*tok = token;
+
+	return type;
+
+out_free:
+	free_token(*tok);
+	free_arg(arg);
+	return EVENT_ERROR;
+}
+
+static int get_op_prio(char *op)
+{
+	if (!op[1]) {
+		switch (op[0]) {
+		case '*':
+		case '/':
+		case '%':
+			return 6;
+		case '+':
+		case '-':
+			return 7;
+			/* '>>' and '<<' are 8 */
+		case '<':
+		case '>':
+			return 9;
+			/* '==' and '!=' are 10 */
+		case '&':
+			return 11;
+		case '^':
+			return 12;
+		case '|':
+			return 13;
+		case '?':
+			return 16;
+		default:
+			die("unknown op '%c'", op[0]);
+			return -1;
+		}
+	} else {
+		if (strcmp(op, "++") == 0 ||
+		    strcmp(op, "--") == 0) {
+			return 3;
+		} else if (strcmp(op, ">>") == 0 ||
+			   strcmp(op, "<<") == 0) {
+			return 8;
+		} else if (strcmp(op, ">=") == 0 ||
+			   strcmp(op, "<=") == 0) {
+			return 9;
+		} else if (strcmp(op, "==") == 0 ||
+			   strcmp(op, "!=") == 0) {
+			return 10;
+		} else if (strcmp(op, "&&") == 0) {
+			return 14;
+		} else if (strcmp(op, "||") == 0) {
+			return 15;
+		} else {
+			die("unknown op '%s'", op);
+			return -1;
+		}
+	}
+}
+
+static void set_op_prio(struct print_arg *arg)
+{
+
+	/* single ops are the greatest */
+	if (!arg->op.left || arg->op.left->type == PRINT_NULL) {
+		arg->op.prio = 0;
+		return;
+	}
+
+	arg->op.prio = get_op_prio(arg->op.op);
+}
+
+static enum event_type
+process_op(struct event *event, struct print_arg *arg, char **tok)
+{
+	struct print_arg *left, *right = NULL;
+	enum event_type type;
+	char *token;
+
+	/* the op is passed in via tok */
+	token = *tok;
+
+	if (arg->type == PRINT_OP && !arg->op.left) {
+		/* handle single op */
+		if (token[1]) {
+			die("bad op token %s", token);
+			return EVENT_ERROR;
+		}
+		switch (token[0]) {
+		case '!':
+		case '+':
+		case '-':
+			break;
+		default:
+			die("bad op token %s", token);
+			return EVENT_ERROR;
+		}
+
+		/* make an empty left */
+		left = malloc_or_die(sizeof(*left));
+		left->type = PRINT_NULL;
+		arg->op.left = left;
+
+		right = malloc_or_die(sizeof(*right));
+		arg->op.right = right;
+
+		type = process_arg(event, right, tok);
+
+	} else if (strcmp(token, "?") == 0) {
+
+		left = malloc_or_die(sizeof(*left));
+		/* copy the top arg to the left */
+		*left = *arg;
+
+		arg->type = PRINT_OP;
+		arg->op.op = token;
+		arg->op.left = left;
+		arg->op.prio = 0;
+
+		type = process_cond(event, arg, tok);
+
+	} else if (strcmp(token, ">>") == 0 ||
+		   strcmp(token, "<<") == 0 ||
+		   strcmp(token, "&") == 0 ||
+		   strcmp(token, "|") == 0 ||
+		   strcmp(token, "&&") == 0 ||
+		   strcmp(token, "||") == 0 ||
+		   strcmp(token, "-") == 0 ||
+		   strcmp(token, "+") == 0 ||
+		   strcmp(token, "*") == 0 ||
+		   strcmp(token, "^") == 0 ||
+		   strcmp(token, "/") == 0 ||
+		   strcmp(token, "<") == 0 ||
+		   strcmp(token, ">") == 0 ||
+		   strcmp(token, "==") == 0 ||
+		   strcmp(token, "!=") == 0) {
+
+		left = malloc_or_die(sizeof(*left));
+
+		/* copy the top arg to the left */
+		*left = *arg;
+
+		arg->type = PRINT_OP;
+		arg->op.op = token;
+		arg->op.left = left;
+
+		set_op_prio(arg);
+
+		right = malloc_or_die(sizeof(*right));
+
+		type = read_token_item(&token);
+		*tok = token;
+
+		/* could just be a type pointer */
+		if ((strcmp(arg->op.op, "*") == 0) &&
+		    type == EVENT_DELIM && (strcmp(token, ")") == 0)) {
+			if (left->type != PRINT_ATOM)
+				die("bad pointer type");
+			left->atom.atom = realloc(left->atom.atom,
+					    sizeof(left->atom.atom) + 3);
+			strcat(left->atom.atom, " *");
+			*arg = *left;
+			free(arg);
+
+			return type;
+		}
+
+		type = process_arg_token(event, right, tok, type);
+
+		arg->op.right = right;
+
+	} else if (strcmp(token, "[") == 0) {
+
+		left = malloc_or_die(sizeof(*left));
+		*left = *arg;
+
+		arg->type = PRINT_OP;
+		arg->op.op = token;
+		arg->op.left = left;
+
+		arg->op.prio = 0;
+		type = process_array(event, arg, tok);
+
+	} else {
+		warning("unknown op '%s'", token);
+		event->flags |= EVENT_FL_FAILED;
+		/* the arg is now the left side */
+		return EVENT_NONE;
+	}
+
+	if (type == EVENT_OP) {
+		int prio;
+
+		/* higher prios need to be closer to the root */
+		prio = get_op_prio(*tok);
+
+		if (prio > arg->op.prio)
+			return process_op(event, arg, tok);
+
+		return process_op(event, right, tok);
+	}
+
+	return type;
+}
+
+static enum event_type
+process_entry(struct event *event __unused, struct print_arg *arg,
+	      char **tok)
+{
+	enum event_type type;
+	char *field;
+	char *token;
+
+	if (read_expected(EVENT_OP, "->") < 0)
+		return EVENT_ERROR;
+
+	if (read_expect_type(EVENT_ITEM, &token) < 0)
+		goto fail;
+	field = token;
+
+	arg->type = PRINT_FIELD;
+	arg->field.name = field;
+
+	if (is_flag_field) {
+		arg->field.field = find_any_field(event, arg->field.name);
+		arg->field.field->flags |= FIELD_IS_FLAG;
+		is_flag_field = 0;
+	} else if (is_symbolic_field) {
+		arg->field.field = find_any_field(event, arg->field.name);
+		arg->field.field->flags |= FIELD_IS_SYMBOLIC;
+		is_symbolic_field = 0;
+	}
+
+	type = read_token(&token);
+	*tok = token;
+
+	return type;
+
+fail:
+	free_token(token);
+	return EVENT_ERROR;
+}
+
+static char *arg_eval (struct print_arg *arg);
+
+static long long arg_num_eval(struct print_arg *arg)
+{
+	long long left, right;
+	long long val = 0;
+
+	switch (arg->type) {
+	case PRINT_ATOM:
+		val = strtoll(arg->atom.atom, NULL, 0);
+		break;
+	case PRINT_TYPE:
+		val = arg_num_eval(arg->typecast.item);
+		break;
+	case PRINT_OP:
+		switch (arg->op.op[0]) {
+		case '|':
+			left = arg_num_eval(arg->op.left);
+			right = arg_num_eval(arg->op.right);
+			if (arg->op.op[1])
+				val = left || right;
+			else
+				val = left | right;
+			break;
+		case '&':
+			left = arg_num_eval(arg->op.left);
+			right = arg_num_eval(arg->op.right);
+			if (arg->op.op[1])
+				val = left && right;
+			else
+				val = left & right;
+			break;
+		case '<':
+			left = arg_num_eval(arg->op.left);
+			right = arg_num_eval(arg->op.right);
+			switch (arg->op.op[1]) {
+			case 0:
+				val = left < right;
+				break;
+			case '<':
+				val = left << right;
+				break;
+			case '=':
+				val = left <= right;
+				break;
+			default:
+				die("unknown op '%s'", arg->op.op);
+			}
+			break;
+		case '>':
+			left = arg_num_eval(arg->op.left);
+			right = arg_num_eval(arg->op.right);
+			switch (arg->op.op[1]) {
+			case 0:
+				val = left > right;
+				break;
+			case '>':
+				val = left >> right;
+				break;
+			case '=':
+				val = left >= right;
+				break;
+			default:
+				die("unknown op '%s'", arg->op.op);
+			}
+			break;
+		case '=':
+			left = arg_num_eval(arg->op.left);
+			right = arg_num_eval(arg->op.right);
+
+			if (arg->op.op[1] != '=')
+				die("unknown op '%s'", arg->op.op);
+
+			val = left == right;
+			break;
+		case '!':
+			left = arg_num_eval(arg->op.left);
+			right = arg_num_eval(arg->op.right);
+
+			switch (arg->op.op[1]) {
+			case '=':
+				val = left != right;
+				break;
+			default:
+				die("unknown op '%s'", arg->op.op);
+			}
+			break;
+		default:
+			die("unknown op '%s'", arg->op.op);
+		}
+		break;
+
+	case PRINT_NULL:
+	case PRINT_FIELD ... PRINT_SYMBOL:
+	case PRINT_STRING:
+	default:
+		die("invalid eval type %d", arg->type);
+
+	}
+	return val;
+}
+
+static char *arg_eval (struct print_arg *arg)
+{
+	long long val;
+	static char buf[20];
+
+	switch (arg->type) {
+	case PRINT_ATOM:
+		return arg->atom.atom;
+	case PRINT_TYPE:
+		return arg_eval(arg->typecast.item);
+	case PRINT_OP:
+		val = arg_num_eval(arg);
+		sprintf(buf, "%lld", val);
+		return buf;
+
+	case PRINT_NULL:
+	case PRINT_FIELD ... PRINT_SYMBOL:
+	case PRINT_STRING:
+	default:
+		die("invalid eval type %d", arg->type);
+		break;
+	}
+
+	return NULL;
+}
+
+static enum event_type
+process_fields(struct event *event, struct print_flag_sym **list, char **tok)
+{
+	enum event_type type;
+	struct print_arg *arg = NULL;
+	struct print_flag_sym *field;
+	char *token = NULL;
+	char *value;
+
+	do {
+		free_token(token);
+		type = read_token_item(&token);
+		if (test_type_token(type, token, EVENT_OP, "{"))
+			break;
+
+		arg = malloc_or_die(sizeof(*arg));
+
+		free_token(token);
+		type = process_arg(event, arg, &token);
+		if (test_type_token(type, token, EVENT_DELIM, ","))
+			goto out_free;
+
+		field = malloc_or_die(sizeof(*field));
+		memset(field, 0, sizeof(*field));
+
+		value = arg_eval(arg);
+		field->value = strdup(value);
+
+		free_token(token);
+		type = process_arg(event, arg, &token);
+		if (test_type_token(type, token, EVENT_OP, "}"))
+			goto out_free;
+
+		value = arg_eval(arg);
+		field->str = strdup(value);
+		free_arg(arg);
+		arg = NULL;
+
+		*list = field;
+		list = &field->next;
+
+		free_token(token);
+		type = read_token_item(&token);
+	} while (type == EVENT_DELIM && strcmp(token, ",") == 0);
+
+	*tok = token;
+	return type;
+
+out_free:
+	free_arg(arg);
+	free_token(token);
+
+	return EVENT_ERROR;
+}
+
+static enum event_type
+process_flags(struct event *event, struct print_arg *arg, char **tok)
+{
+	struct print_arg *field;
+	enum event_type type;
+	char *token;
+
+	memset(arg, 0, sizeof(*arg));
+	arg->type = PRINT_FLAGS;
+
+	if (read_expected_item(EVENT_DELIM, "(") < 0)
+		return EVENT_ERROR;
+
+	field = malloc_or_die(sizeof(*field));
+
+	type = process_arg(event, field, &token);
+	if (test_type_token(type, token, EVENT_DELIM, ","))
+		goto out_free;
+
+	arg->flags.field = field;
+
+	type = read_token_item(&token);
+	if (event_item_type(type)) {
+		arg->flags.delim = token;
+		type = read_token_item(&token);
+	}
+
+	if (test_type_token(type, token, EVENT_DELIM, ","))
+		goto out_free;
+
+	type = process_fields(event, &arg->flags.flags, &token);
+	if (test_type_token(type, token, EVENT_DELIM, ")"))
+		goto out_free;
+
+	free_token(token);
+	type = read_token_item(tok);
+	return type;
+
+out_free:
+	free_token(token);
+	return EVENT_ERROR;
+}
+
+static enum event_type
+process_symbols(struct event *event, struct print_arg *arg, char **tok)
+{
+	struct print_arg *field;
+	enum event_type type;
+	char *token;
+
+	memset(arg, 0, sizeof(*arg));
+	arg->type = PRINT_SYMBOL;
+
+	if (read_expected_item(EVENT_DELIM, "(") < 0)
+		return EVENT_ERROR;
+
+	field = malloc_or_die(sizeof(*field));
+
+	type = process_arg(event, field, &token);
+	if (test_type_token(type, token, EVENT_DELIM, ","))
+		goto out_free;
+
+	arg->symbol.field = field;
+
+	type = process_fields(event, &arg->symbol.symbols, &token);
+	if (test_type_token(type, token, EVENT_DELIM, ")"))
+		goto out_free;
+
+	free_token(token);
+	type = read_token_item(tok);
+	return type;
+
+out_free:
+	free_token(token);
+	return EVENT_ERROR;
+}
+
+static enum event_type
+process_paren(struct event *event, struct print_arg *arg, char **tok)
+{
+	struct print_arg *item_arg;
+	enum event_type type;
+	char *token;
+
+	type = process_arg(event, arg, &token);
+
+	if (type == EVENT_ERROR)
+		return EVENT_ERROR;
+
+	if (type == EVENT_OP)
+		type = process_op(event, arg, &token);
+
+	if (type == EVENT_ERROR)
+		return EVENT_ERROR;
+
+	if (test_type_token(type, token, EVENT_DELIM, ")")) {
+		free_token(token);
+		return EVENT_ERROR;
+	}
+
+	free_token(token);
+	type = read_token_item(&token);
+
+	/*
+	 * If the next token is an item or another open paren, then
+	 * this was a typecast.
+	 */
+	if (event_item_type(type) ||
+	    (type == EVENT_DELIM && strcmp(token, "(") == 0)) {
+
+		/* make this a typecast and contine */
+
+		/* prevous must be an atom */
+		if (arg->type != PRINT_ATOM)
+			die("previous needed to be PRINT_ATOM");
+
+		item_arg = malloc_or_die(sizeof(*item_arg));
+
+		arg->type = PRINT_TYPE;
+		arg->typecast.type = arg->atom.atom;
+		arg->typecast.item = item_arg;
+		type = process_arg_token(event, item_arg, &token, type);
+
+	}
+
+	*tok = token;
+	return type;
+}
+
+
+static enum event_type
+process_str(struct event *event __unused, struct print_arg *arg, char **tok)
+{
+	enum event_type type;
+	char *token;
+
+	if (read_expected(EVENT_DELIM, "(") < 0)
+		return EVENT_ERROR;
+
+	if (read_expect_type(EVENT_ITEM, &token) < 0)
+		goto fail;
+
+	arg->type = PRINT_STRING;
+	arg->string.string = token;
+	arg->string.offset = -1;
+
+	if (read_expected(EVENT_DELIM, ")") < 0)
+		return EVENT_ERROR;
+
+	type = read_token(&token);
+	*tok = token;
+
+	return type;
+fail:
+	free_token(token);
+	return EVENT_ERROR;
+}
+
+enum event_type
+process_arg_token(struct event *event, struct print_arg *arg,
+		  char **tok, enum event_type type)
+{
+	char *token;
+	char *atom;
+
+	token = *tok;
+
+	switch (type) {
+	case EVENT_ITEM:
+		if (strcmp(token, "REC") == 0) {
+			free_token(token);
+			type = process_entry(event, arg, &token);
+		} else if (strcmp(token, "__print_flags") == 0) {
+			free_token(token);
+			is_flag_field = 1;
+			type = process_flags(event, arg, &token);
+		} else if (strcmp(token, "__print_symbolic") == 0) {
+			free_token(token);
+			is_symbolic_field = 1;
+			type = process_symbols(event, arg, &token);
+		} else if (strcmp(token, "__get_str") == 0) {
+			free_token(token);
+			type = process_str(event, arg, &token);
+		} else {
+			atom = token;
+			/* test the next token */
+			type = read_token_item(&token);
+
+			/* atoms can be more than one token long */
+			while (type == EVENT_ITEM) {
+				atom = realloc(atom, strlen(atom) + strlen(token) + 2);
+				strcat(atom, " ");
+				strcat(atom, token);
+				free_token(token);
+				type = read_token_item(&token);
+			}
+
+			/* todo, test for function */
+
+			arg->type = PRINT_ATOM;
+			arg->atom.atom = atom;
+		}
+		break;
+	case EVENT_DQUOTE:
+	case EVENT_SQUOTE:
+		arg->type = PRINT_ATOM;
+		arg->atom.atom = token;
+		type = read_token_item(&token);
+		break;
+	case EVENT_DELIM:
+		if (strcmp(token, "(") == 0) {
+			free_token(token);
+			type = process_paren(event, arg, &token);
+			break;
+		}
+	case EVENT_OP:
+		/* handle single ops */
+		arg->type = PRINT_OP;
+		arg->op.op = token;
+		arg->op.left = NULL;
+		type = process_op(event, arg, &token);
+
+		break;
+
+	case EVENT_ERROR ... EVENT_NEWLINE:
+	default:
+		die("unexpected type %d", type);
+	}
+	*tok = token;
+
+	return type;
+}
+
+static int event_read_print_args(struct event *event, struct print_arg **list)
+{
+	enum event_type type = EVENT_ERROR;
+	struct print_arg *arg;
+	char *token;
+	int args = 0;
+
+	do {
+		if (type == EVENT_NEWLINE) {
+			free_token(token);
+			type = read_token_item(&token);
+			continue;
+		}
+
+		arg = malloc_or_die(sizeof(*arg));
+		memset(arg, 0, sizeof(*arg));
+
+		type = process_arg(event, arg, &token);
+
+		if (type == EVENT_ERROR) {
+			free_arg(arg);
+			return -1;
+		}
+
+		*list = arg;
+		args++;
+
+		if (type == EVENT_OP) {
+			type = process_op(event, arg, &token);
+			list = &arg->next;
+			continue;
+		}
+
+		if (type == EVENT_DELIM && strcmp(token, ",") == 0) {
+			free_token(token);
+			*list = arg;
+			list = &arg->next;
+			continue;
+		}
+		break;
+	} while (type != EVENT_NONE);
+
+	if (type != EVENT_NONE)
+		free_token(token);
+
+	return args;
+}
+
+static int event_read_print(struct event *event)
+{
+	enum event_type type;
+	char *token;
+	int ret;
+
+	if (read_expected_item(EVENT_ITEM, "print") < 0)
+		return -1;
+
+	if (read_expected(EVENT_ITEM, "fmt") < 0)
+		return -1;
+
+	if (read_expected(EVENT_OP, ":") < 0)
+		return -1;
+
+	if (read_expect_type(EVENT_DQUOTE, &token) < 0)
+		goto fail;
+
+ concat:
+	event->print_fmt.format = token;
+	event->print_fmt.args = NULL;
+
+	/* ok to have no arg */
+	type = read_token_item(&token);
+
+	if (type == EVENT_NONE)
+		return 0;
+
+	/* Handle concatination of print lines */
+	if (type == EVENT_DQUOTE) {
+		char *cat;
+
+		cat = malloc_or_die(strlen(event->print_fmt.format) +
+				    strlen(token) + 1);
+		strcpy(cat, event->print_fmt.format);
+		strcat(cat, token);
+		free_token(token);
+		free_token(event->print_fmt.format);
+		event->print_fmt.format = NULL;
+		token = cat;
+		goto concat;
+	}
+
+	if (test_type_token(type, token, EVENT_DELIM, ","))
+		goto fail;
+
+	free_token(token);
+
+	ret = event_read_print_args(event, &event->print_fmt.args);
+	if (ret < 0)
+		return -1;
+
+	return ret;
+
+ fail:
+	free_token(token);
+	return -1;
+}
+
+static struct format_field *
+find_common_field(struct event *event, const char *name)
+{
+	struct format_field *format;
+
+	for (format = event->format.common_fields;
+	     format; format = format->next) {
+		if (strcmp(format->name, name) == 0)
+			break;
+	}
+
+	return format;
+}
+
+static struct format_field *
+find_field(struct event *event, const char *name)
+{
+	struct format_field *format;
+
+	for (format = event->format.fields;
+	     format; format = format->next) {
+		if (strcmp(format->name, name) == 0)
+			break;
+	}
+
+	return format;
+}
+
+static struct format_field *
+find_any_field(struct event *event, const char *name)
+{
+	struct format_field *format;
+
+	format = find_common_field(event, name);
+	if (format)
+		return format;
+	return find_field(event, name);
+}
+
+unsigned long long read_size(void *ptr, int size)
+{
+	switch (size) {
+	case 1:
+		return *(unsigned char *)ptr;
+	case 2:
+		return data2host2(ptr);
+	case 4:
+		return data2host4(ptr);
+	case 8:
+		return data2host8(ptr);
+	default:
+		/* BUG! */
+		return 0;
+	}
+}
+
+unsigned long long
+raw_field_value(struct event *event, const char *name, void *data)
+{
+	struct format_field *field;
+
+	field = find_any_field(event, name);
+	if (!field)
+		return 0ULL;
+
+	return read_size(data + field->offset, field->size);
+}
+
+void *raw_field_ptr(struct event *event, const char *name, void *data)
+{
+	struct format_field *field;
+
+	field = 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;
+}
+
+static int get_common_info(const char *type, int *offset, int *size)
+{
+	struct event *event;
+	struct format_field *field;
+
+	/*
+	 * All events should have the same common elements.
+	 * Pick any event to find where the type is;
+	 */
+	if (!event_list)
+		die("no event_list!");
+
+	event = event_list;
+	field = find_common_field(event, type);
+	if (!field)
+		die("field '%s' not found", type);
+
+	*offset = field->offset;
+	*size = field->size;
+
+	return 0;
+}
+
+static int __parse_common(void *data, int *size, int *offset,
+			  const char *name)
+{
+	int ret;
+
+	if (!*size) {
+		ret = get_common_info(name, offset, size);
+		if (ret < 0)
+			return ret;
+	}
+	return read_size(data + *offset, *size);
+}
+
+int trace_parse_common_type(void *data)
+{
+	static int type_offset;
+	static int type_size;
+
+	return __parse_common(data, &type_size, &type_offset,
+			      "common_type");
+}
+
+int trace_parse_common_pid(void *data)
+{
+	static int pid_offset;
+	static int pid_size;
+
+	return __parse_common(data, &pid_size, &pid_offset,
+			      "common_pid");
+}
+
+int parse_common_pc(void *data)
+{
+	static int pc_offset;
+	static int pc_size;
+
+	return __parse_common(data, &pc_size, &pc_offset,
+			      "common_preempt_count");
+}
+
+int parse_common_flags(void *data)
+{
+	static int flags_offset;
+	static int flags_size;
+
+	return __parse_common(data, &flags_size, &flags_offset,
+			      "common_flags");
+}
+
+int parse_common_lock_depth(void *data)
+{
+	static int ld_offset;
+	static int ld_size;
+	int ret;
+
+	ret = __parse_common(data, &ld_size, &ld_offset,
+			     "common_lock_depth");
+	if (ret < 0)
+		return -1;
+
+	return ret;
+}
+
+struct event *trace_find_event(int id)
+{
+	struct event *event;
+
+	for (event = event_list; event; event = event->next) {
+		if (event->id == id)
+			break;
+	}
+	return event;
+}
+
+struct event *trace_find_next_event(struct event *event)
+{
+	if (!event)
+		return event_list;
+
+	return event->next;
+}
+
+static unsigned long long eval_num_arg(void *data, int size,
+				   struct event *event, struct print_arg *arg)
+{
+	unsigned long long val = 0;
+	unsigned long long left, right;
+	struct print_arg *larg;
+
+	switch (arg->type) {
+	case PRINT_NULL:
+		/* ?? */
+		return 0;
+	case PRINT_ATOM:
+		return strtoull(arg->atom.atom, NULL, 0);
+	case PRINT_FIELD:
+		if (!arg->field.field) {
+			arg->field.field = find_any_field(event, arg->field.name);
+			if (!arg->field.field)
+				die("field %s not found", arg->field.name);
+		}
+		/* must be a number */
+		val = read_size(data + arg->field.field->offset,
+				arg->field.field->size);
+		break;
+	case PRINT_FLAGS:
+	case PRINT_SYMBOL:
+		break;
+	case PRINT_TYPE:
+		return eval_num_arg(data, size, event, arg->typecast.item);
+	case PRINT_STRING:
+		return 0;
+		break;
+	case PRINT_OP:
+		if (strcmp(arg->op.op, "[") == 0) {
+			/*
+			 * Arrays are special, since we don't want
+			 * to read the arg as is.
+			 */
+			if (arg->op.left->type != PRINT_FIELD)
+				goto default_op; /* oops, all bets off */
+			larg = arg->op.left;
+			if (!larg->field.field) {
+				larg->field.field =
+					find_any_field(event, larg->field.name);
+				if (!larg->field.field)
+					die("field %s not found", larg->field.name);
+			}
+			right = eval_num_arg(data, size, event, arg->op.right);
+			val = read_size(data + larg->field.field->offset +
+					right * long_size, long_size);
+			break;
+		}
+ default_op:
+		left = eval_num_arg(data, size, event, arg->op.left);
+		right = eval_num_arg(data, size, event, arg->op.right);
+		switch (arg->op.op[0]) {
+		case '|':
+			if (arg->op.op[1])
+				val = left || right;
+			else
+				val = left | right;
+			break;
+		case '&':
+			if (arg->op.op[1])
+				val = left && right;
+			else
+				val = left & right;
+			break;
+		case '<':
+			switch (arg->op.op[1]) {
+			case 0:
+				val = left < right;
+				break;
+			case '<':
+				val = left << right;
+				break;
+			case '=':
+				val = left <= right;
+				break;
+			default:
+				die("unknown op '%s'", arg->op.op);
+			}
+			break;
+		case '>':
+			switch (arg->op.op[1]) {
+			case 0:
+				val = left > right;
+				break;
+			case '>':
+				val = left >> right;
+				break;
+			case '=':
+				val = left >= right;
+				break;
+			default:
+				die("unknown op '%s'", arg->op.op);
+			}
+			break;
+		case '=':
+			if (arg->op.op[1] != '=')
+				die("unknown op '%s'", arg->op.op);
+			val = left == right;
+			break;
+		case '-':
+			val = left - right;
+			break;
+		case '+':
+			val = left + right;
+			break;
+		default:
+			die("unknown op '%s'", arg->op.op);
+		}
+		break;
+	default: /* not sure what to do there */
+		return 0;
+	}
+	return val;
+}
+
+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;
+}
+
+static void print_str_arg(void *data, int size,
+			  struct event *event, struct print_arg *arg)
+{
+	struct print_flag_sym *flag;
+	unsigned long long val, fval;
+	char *str;
+	int print;
+
+	switch (arg->type) {
+	case PRINT_NULL:
+		/* ?? */
+		return;
+	case PRINT_ATOM:
+		printf("%s", arg->atom.atom);
+		return;
+	case PRINT_FIELD:
+		if (!arg->field.field) {
+			arg->field.field = find_any_field(event, arg->field.name);
+			if (!arg->field.field)
+				die("field %s not found", arg->field.name);
+		}
+		str = malloc_or_die(arg->field.field->size + 1);
+		memcpy(str, data + arg->field.field->offset,
+		       arg->field.field->size);
+		str[arg->field.field->size] = 0;
+		printf("%s", str);
+		free(str);
+		break;
+	case PRINT_FLAGS:
+		val = eval_num_arg(data, size, event, arg->flags.field);
+		print = 0;
+		for (flag = arg->flags.flags; flag; flag = flag->next) {
+			fval = eval_flag(flag->value);
+			if (!val && !fval) {
+				printf("%s", flag->str);
+				break;
+			}
+			if (fval && (val & fval) == fval) {
+				if (print && arg->flags.delim)
+					printf("%s", arg->flags.delim);
+				printf("%s", flag->str);
+				print = 1;
+				val &= ~fval;
+			}
+		}
+		break;
+	case PRINT_SYMBOL:
+		val = eval_num_arg(data, size, event, arg->symbol.field);
+		for (flag = arg->symbol.symbols; flag; flag = flag->next) {
+			fval = eval_flag(flag->value);
+			if (val == fval) {
+				printf("%s", flag->str);
+				break;
+			}
+		}
+		break;
+
+	case PRINT_TYPE:
+		break;
+	case PRINT_STRING: {
+		int str_offset;
+
+		if (arg->string.offset == -1) {
+			struct format_field *f;
+
+			f = find_any_field(event, arg->string.string);
+			arg->string.offset = f->offset;
+		}
+		str_offset = *(int *)(data + arg->string.offset);
+		str_offset &= 0xffff;
+		printf("%s", ((char *)data) + str_offset);
+		break;
+	}
+	case PRINT_OP:
+		/*
+		 * The only op for string should be ? :
+		 */
+		if (arg->op.op[0] != '?')
+			return;
+		val = eval_num_arg(data, size, event, arg->op.left);
+		if (val)
+			print_str_arg(data, size, event, arg->op.right->op.left);
+		else
+			print_str_arg(data, size, event, arg->op.right->op.right);
+		break;
+	default:
+		/* well... */
+		break;
+	}
+}
+
+static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event)
+{
+	static struct format_field *field, *ip_field;
+	struct print_arg *args, *arg, **next;
+	unsigned long long ip, val;
+	char *ptr;
+	void *bptr;
+
+	if (!field) {
+		field = find_field(event, "buf");
+		if (!field)
+			die("can't find buffer field for binary printk");
+		ip_field = find_field(event, "ip");
+		if (!ip_field)
+			die("can't find ip field for binary printk");
+	}
+
+	ip = read_size(data + ip_field->offset, ip_field->size);
+
+	/*
+	 * The first arg is the IP pointer.
+	 */
+	args = malloc_or_die(sizeof(*args));
+	arg = args;
+	arg->next = NULL;
+	next = &arg->next;
+
+	arg->type = PRINT_ATOM;
+	arg->atom.atom = malloc_or_die(32);
+	sprintf(arg->atom.atom, "%lld", ip);
+
+	/* skip the first "%pf : " */
+	for (ptr = fmt + 6, bptr = data + field->offset;
+	     bptr < data + size && *ptr; ptr++) {
+		int ls = 0;
+
+		if (*ptr == '%') {
+ process_again:
+			ptr++;
+			switch (*ptr) {
+			case '%':
+				break;
+			case 'l':
+				ls++;
+				goto process_again;
+			case 'L':
+				ls = 2;
+				goto process_again;
+			case '0' ... '9':
+				goto process_again;
+			case 'p':
+				ls = 1;
+				/* fall through */
+			case 'd':
+			case 'u':
+			case 'x':
+			case 'i':
+				/* the pointers are always 4 bytes aligned */
+				bptr = (void *)(((unsigned long)bptr + 3) &
+						~3);
+				switch (ls) {
+				case 0:
+				case 1:
+					ls = long_size;
+					break;
+				case 2:
+					ls = 8;
+				default:
+					break;
+				}
+				val = read_size(bptr, ls);
+				bptr += ls;
+				arg = malloc_or_die(sizeof(*arg));
+				arg->next = NULL;
+				arg->type = PRINT_ATOM;
+				arg->atom.atom = malloc_or_die(32);
+				sprintf(arg->atom.atom, "%lld", val);
+				*next = arg;
+				next = &arg->next;
+				break;
+			case 's':
+				arg = malloc_or_die(sizeof(*arg));
+				arg->next = NULL;
+				arg->type = PRINT_STRING;
+				arg->string.string = strdup(bptr);
+				bptr += strlen(bptr) + 1;
+				*next = arg;
+				next = &arg->next;
+			default:
+				break;
+			}
+		}
+	}
+
+	return args;
+}
+
+static void free_args(struct print_arg *args)
+{
+	struct print_arg *next;
+
+	while (args) {
+		next = args->next;
+
+		if (args->type == PRINT_ATOM)
+			free(args->atom.atom);
+		else
+			free(args->string.string);
+		free(args);
+		args = next;
+	}
+}
+
+static char *get_bprint_format(void *data, int size __unused, struct event *event)
+{
+	unsigned long long addr;
+	static struct format_field *field;
+	struct printk_map *printk;
+	char *format;
+	char *p;
+
+	if (!field) {
+		field = find_field(event, "fmt");
+		if (!field)
+			die("can't find format field for binary printk");
+		printf("field->offset = %d size=%d\n", field->offset, field->size);
+	}
+
+	addr = read_size(data + field->offset, field->size);
+
+	printk = find_printk(addr);
+	if (!printk) {
+		format = malloc_or_die(45);
+		sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n",
+			addr);
+		return format;
+	}
+
+	p = printk->printk;
+	/* Remove any quotes. */
+	if (*p == '"')
+		p++;
+	format = malloc_or_die(strlen(p) + 10);
+	sprintf(format, "%s : %s", "%pf", p);
+	/* remove ending quotes and new line since we will add one too */
+	p = format + strlen(format) - 1;
+	if (*p == '"')
+		*p = 0;
+
+	p -= 2;
+	if (strcmp(p, "\\n") == 0)
+		*p = 0;
+
+	return format;
+}
+
+static void pretty_print(void *data, int size, struct event *event)
+{
+	struct print_fmt *print_fmt = &event->print_fmt;
+	struct print_arg *arg = print_fmt->args;
+	struct print_arg *args = NULL;
+	const char *ptr = print_fmt->format;
+	unsigned long long val;
+	struct func_map *func;
+	const char *saveptr;
+	char *bprint_fmt = NULL;
+	char format[32];
+	int show_func;
+	int len;
+	int ls;
+
+	if (event->flags & EVENT_FL_ISFUNC)
+		ptr = " %pF <-- %pF";
+
+	if (event->flags & EVENT_FL_ISBPRINT) {
+		bprint_fmt = get_bprint_format(data, size, event);
+		args = make_bprint_args(bprint_fmt, data, size, event);
+		arg = args;
+		ptr = bprint_fmt;
+	}
+
+	for (; *ptr; ptr++) {
+		ls = 0;
+		if (*ptr == '\\') {
+			ptr++;
+			switch (*ptr) {
+			case 'n':
+				printf("\n");
+				break;
+			case 't':
+				printf("\t");
+				break;
+			case 'r':
+				printf("\r");
+				break;
+			case '\\':
+				printf("\\");
+				break;
+			default:
+				printf("%c", *ptr);
+				break;
+			}
+
+		} else if (*ptr == '%') {
+			saveptr = ptr;
+			show_func = 0;
+ cont_process:
+			ptr++;
+			switch (*ptr) {
+			case '%':
+				printf("%%");
+				break;
+			case 'l':
+				ls++;
+				goto cont_process;
+			case 'L':
+				ls = 2;
+				goto cont_process;
+			case 'z':
+			case 'Z':
+			case '0' ... '9':
+				goto cont_process;
+			case 'p':
+				if (long_size == 4)
+					ls = 1;
+				else
+					ls = 2;
+
+				if (*(ptr+1) == 'F' ||
+				    *(ptr+1) == 'f') {
+					ptr++;
+					show_func = *ptr;
+				}
+
+				/* fall through */
+			case 'd':
+			case 'i':
+			case 'x':
+			case 'X':
+			case 'u':
+				if (!arg)
+					die("no argument match");
+
+				len = ((unsigned long)ptr + 1) -
+					(unsigned long)saveptr;
+
+				/* should never happen */
+				if (len > 32)
+					die("bad format!");
+
+				memcpy(format, saveptr, len);
+				format[len] = 0;
+
+				val = eval_num_arg(data, size, event, arg);
+				arg = arg->next;
+
+				if (show_func) {
+					func = find_func(val);
+					if (func) {
+						printf("%s", func->func);
+						if (show_func == 'F')
+							printf("+0x%llx",
+							       val - func->addr);
+						break;
+					}
+				}
+				switch (ls) {
+				case 0:
+					printf(format, (int)val);
+					break;
+				case 1:
+					printf(format, (long)val);
+					break;
+				case 2:
+					printf(format, (long long)val);
+					break;
+				default:
+					die("bad count (%d)", ls);
+				}
+				break;
+			case 's':
+				if (!arg)
+					die("no matching argument");
+
+				print_str_arg(data, size, event, arg);
+				arg = arg->next;
+				break;
+			default:
+				printf(">%c<", *ptr);
+
+			}
+		} else
+			printf("%c", *ptr);
+	}
+
+	if (args) {
+		free_args(args);
+		free(bprint_fmt);
+	}
+}
+
+static inline int log10_cpu(int nb)
+{
+	if (nb / 100)
+		return 3;
+	if (nb / 10)
+		return 2;
+	return 1;
+}
+
+static void print_lat_fmt(void *data, int size __unused)
+{
+	unsigned int lat_flags;
+	unsigned int pc;
+	int lock_depth;
+	int hardirq;
+	int softirq;
+
+	lat_flags = parse_common_flags(data);
+	pc = parse_common_pc(data);
+	lock_depth = parse_common_lock_depth(data);
+
+	hardirq = lat_flags & TRACE_FLAG_HARDIRQ;
+	softirq = lat_flags & TRACE_FLAG_SOFTIRQ;
+
+	printf("%c%c%c",
+	       (lat_flags & TRACE_FLAG_IRQS_OFF) ? 'd' :
+	       (lat_flags & TRACE_FLAG_IRQS_NOSUPPORT) ?
+	       'X' : '.',
+	       (lat_flags & TRACE_FLAG_NEED_RESCHED) ?
+	       'N' : '.',
+	       (hardirq && softirq) ? 'H' :
+	       hardirq ? 'h' : softirq ? 's' : '.');
+
+	if (pc)
+		printf("%x", pc);
+	else
+		printf(".");
+
+	if (lock_depth < 0)
+		printf(".");
+	else
+		printf("%d", lock_depth);
+}
+
+/* taken from Linux, written by Frederic Weisbecker */
+static void print_graph_cpu(int cpu)
+{
+	int i;
+	int log10_this = log10_cpu(cpu);
+	int log10_all = log10_cpu(cpus);
+
+
+	/*
+	 * Start with a space character - to make it stand out
+	 * to the right a bit when trace output is pasted into
+	 * email:
+	 */
+	printf(" ");
+
+	/*
+	 * Tricky - we space the CPU field according to the max
+	 * number of online CPUs. On a 2-cpu system it would take
+	 * a maximum of 1 digit - on a 128 cpu system it would
+	 * take up to 3 digits:
+	 */
+	for (i = 0; i < log10_all - log10_this; i++)
+		printf(" ");
+
+	printf("%d) ", cpu);
+}
+
+#define TRACE_GRAPH_PROCINFO_LENGTH	14
+#define TRACE_GRAPH_INDENT	2
+
+static void print_graph_proc(int pid, const char *comm)
+{
+	/* sign + log10(MAX_INT) + '\0' */
+	char pid_str[11];
+	int spaces = 0;
+	int len;
+	int i;
+
+	sprintf(pid_str, "%d", pid);
+
+	/* 1 stands for the "-" character */
+	len = strlen(comm) + strlen(pid_str) + 1;
+
+	if (len < TRACE_GRAPH_PROCINFO_LENGTH)
+		spaces = TRACE_GRAPH_PROCINFO_LENGTH - len;
+
+	/* First spaces to align center */
+	for (i = 0; i < spaces / 2; i++)
+		printf(" ");
+
+	printf("%s-%s", comm, pid_str);
+
+	/* Last spaces to align center */
+	for (i = 0; i < spaces - (spaces / 2); i++)
+		printf(" ");
+}
+
+static struct record *
+get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func,
+		    struct record *next)
+{
+	struct format_field *field;
+	struct event *event;
+	unsigned long val;
+	int type;
+	int pid;
+
+	type = trace_parse_common_type(next->data);
+	event = trace_find_event(type);
+	if (!event)
+		return NULL;
+
+	if (!(event->flags & EVENT_FL_ISFUNCRET))
+		return NULL;
+
+	pid = trace_parse_common_pid(next->data);
+	field = find_field(event, "func");
+	if (!field)
+		die("function return does not have field func");
+
+	val = read_size(next->data + field->offset, field->size);
+
+	if (cur_pid != pid || cur_func != val)
+		return NULL;
+
+	/* this is a leaf, now advance the iterator */
+	return trace_read_data(cpu);
+}
+
+/* Signal a overhead of time execution to the output */
+static void print_graph_overhead(unsigned long long duration)
+{
+	/* Non nested entry or return */
+	if (duration == ~0ULL)
+		return (void)printf("  ");
+
+	/* Duration exceeded 100 msecs */
+	if (duration > 100000ULL)
+		return (void)printf("! ");
+
+	/* Duration exceeded 10 msecs */
+	if (duration > 10000ULL)
+		return (void)printf("+ ");
+
+	printf("  ");
+}
+
+static void print_graph_duration(unsigned long long duration)
+{
+	unsigned long usecs = duration / 1000;
+	unsigned long nsecs_rem = duration % 1000;
+	/* log10(ULONG_MAX) + '\0' */
+	char msecs_str[21];
+	char nsecs_str[5];
+	int len;
+	int i;
+
+	sprintf(msecs_str, "%lu", usecs);
+
+	/* Print msecs */
+	len = printf("%lu", usecs);
+
+	/* Print nsecs (we don't want to exceed 7 numbers) */
+	if (len < 7) {
+		snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem);
+		len += printf(".%s", nsecs_str);
+	}
+
+	printf(" us ");
+
+	/* Print remaining spaces to fit the row's width */
+	for (i = len; i < 7; i++)
+		printf(" ");
+
+	printf("|  ");
+}
+
+static void
+print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec)
+{
+	unsigned long long rettime, calltime;
+	unsigned long long duration, depth;
+	unsigned long long val;
+	struct format_field *field;
+	struct func_map *func;
+	struct event *ret_event;
+	int type;
+	int i;
+
+	type = trace_parse_common_type(ret_rec->data);
+	ret_event = trace_find_event(type);
+
+	field = find_field(ret_event, "rettime");
+	if (!field)
+		die("can't find rettime in return graph");
+	rettime = read_size(ret_rec->data + field->offset, field->size);
+
+	field = find_field(ret_event, "calltime");
+	if (!field)
+		die("can't find rettime in return graph");
+	calltime = read_size(ret_rec->data + field->offset, field->size);
+
+	duration = rettime - calltime;
+
+	/* Overhead */
+	print_graph_overhead(duration);
+
+	/* Duration */
+	print_graph_duration(duration);
+
+	field = find_field(event, "depth");
+	if (!field)
+		die("can't find depth in entry graph");
+	depth = read_size(data + field->offset, field->size);
+
+	/* Function */
+	for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++)
+		printf(" ");
+
+	field = find_field(event, "func");
+	if (!field)
+		die("can't find func in entry graph");
+	val = read_size(data + field->offset, field->size);
+	func = find_func(val);
+
+	if (func)
+		printf("%s();", func->func);
+	else
+		printf("%llx();", val);
+}
+
+static void print_graph_nested(struct event *event, void *data)
+{
+	struct format_field *field;
+	unsigned long long depth;
+	unsigned long long val;
+	struct func_map *func;
+	int i;
+
+	/* No overhead */
+	print_graph_overhead(-1);
+
+	/* No time */
+	printf("           |  ");
+
+	field = find_field(event, "depth");
+	if (!field)
+		die("can't find depth in entry graph");
+	depth = read_size(data + field->offset, field->size);
+
+	/* Function */
+	for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++)
+		printf(" ");
+
+	field = find_field(event, "func");
+	if (!field)
+		die("can't find func in entry graph");
+	val = read_size(data + field->offset, field->size);
+	func = find_func(val);
+
+	if (func)
+		printf("%s() {", func->func);
+	else
+		printf("%llx() {", val);
+}
+
+static void
+pretty_print_func_ent(void *data, int size, struct event *event,
+		      int cpu, int pid, const char *comm,
+		      unsigned long secs, unsigned long usecs)
+{
+	struct format_field *field;
+	struct record *rec;
+	void *copy_data;
+	unsigned long val;
+
+	printf("%5lu.%06lu |  ", secs, usecs);
+
+	print_graph_cpu(cpu);
+	print_graph_proc(pid, comm);
+
+	printf(" | ");
+
+	if (latency_format) {
+		print_lat_fmt(data, size);
+		printf(" | ");
+	}
+
+	field = find_field(event, "func");
+	if (!field)
+		die("function entry does not have func field");
+
+	val = read_size(data + field->offset, field->size);
+
+	/*
+	 * peek_data may unmap the data pointer. Copy it first.
+	 */
+	copy_data = malloc_or_die(size);
+	memcpy(copy_data, data, size);
+	data = copy_data;
+
+	rec = trace_peek_data(cpu);
+	if (rec) {
+		rec = get_return_for_leaf(cpu, pid, val, rec);
+		if (rec) {
+			print_graph_entry_leaf(event, data, rec);
+			goto out_free;
+		}
+	}
+	print_graph_nested(event, data);
+out_free:
+	free(data);
+}
+
+static void
+pretty_print_func_ret(void *data, int size __unused, struct event *event,
+		      int cpu, int pid, const char *comm,
+		      unsigned long secs, unsigned long usecs)
+{
+	unsigned long long rettime, calltime;
+	unsigned long long duration, depth;
+	struct format_field *field;
+	int i;
+
+	printf("%5lu.%06lu |  ", secs, usecs);
+
+	print_graph_cpu(cpu);
+	print_graph_proc(pid, comm);
+
+	printf(" | ");
+
+	if (latency_format) {
+		print_lat_fmt(data, size);
+		printf(" | ");
+	}
+
+	field = find_field(event, "rettime");
+	if (!field)
+		die("can't find rettime in return graph");
+	rettime = read_size(data + field->offset, field->size);
+
+	field = find_field(event, "calltime");
+	if (!field)
+		die("can't find calltime in return graph");
+	calltime = read_size(data + field->offset, field->size);
+
+	duration = rettime - calltime;
+
+	/* Overhead */
+	print_graph_overhead(duration);
+
+	/* Duration */
+	print_graph_duration(duration);
+
+	field = find_field(event, "depth");
+	if (!field)
+		die("can't find depth in entry graph");
+	depth = read_size(data + field->offset, field->size);
+
+	/* Function */
+	for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++)
+		printf(" ");
+
+	printf("}");
+}
+
+static void
+pretty_print_func_graph(void *data, int size, struct event *event,
+			int cpu, int pid, const char *comm,
+			unsigned long secs, unsigned long usecs)
+{
+	if (event->flags & EVENT_FL_ISFUNCENT)
+		pretty_print_func_ent(data, size, event,
+				      cpu, pid, comm, secs, usecs);
+	else if (event->flags & EVENT_FL_ISFUNCRET)
+		pretty_print_func_ret(data, size, event,
+				      cpu, pid, comm, secs, usecs);
+	printf("\n");
+}
+
+void print_event(int cpu, void *data, int size, unsigned long long nsecs,
+		  char *comm)
+{
+	struct event *event;
+	unsigned long secs;
+	unsigned long usecs;
+	int type;
+	int pid;
+
+	secs = nsecs / NSECS_PER_SEC;
+	nsecs -= secs * NSECS_PER_SEC;
+	usecs = nsecs / NSECS_PER_USEC;
+
+	type = trace_parse_common_type(data);
+
+	event = trace_find_event(type);
+	if (!event) {
+		warning("ug! no event found for type %d", type);
+		return;
+	}
+
+	pid = trace_parse_common_pid(data);
+
+	if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET))
+		return pretty_print_func_graph(data, size, event, cpu,
+					       pid, comm, secs, usecs);
+
+	if (latency_format) {
+		printf("%8.8s-%-5d %3d",
+		       comm, pid, cpu);
+		print_lat_fmt(data, size);
+	} else
+		printf("%16s-%-5d [%03d]", comm, pid,  cpu);
+
+	printf(" %5lu.%06lu: %s: ", secs, usecs, event->name);
+
+	if (event->flags & EVENT_FL_FAILED) {
+		printf("EVENT '%s' FAILED TO PARSE\n",
+		       event->name);
+		return;
+	}
+
+	pretty_print(data, size, event);
+	printf("\n");
+}
+
+static void print_fields(struct print_flag_sym *field)
+{
+	printf("{ %s, %s }", field->value, field->str);
+	if (field->next) {
+		printf(", ");
+		print_fields(field->next);
+	}
+}
+
+static void print_args(struct print_arg *args)
+{
+	int print_paren = 1;
+
+	switch (args->type) {
+	case PRINT_NULL:
+		printf("null");
+		break;
+	case PRINT_ATOM:
+		printf("%s", args->atom.atom);
+		break;
+	case PRINT_FIELD:
+		printf("REC->%s", args->field.name);
+		break;
+	case PRINT_FLAGS:
+		printf("__print_flags(");
+		print_args(args->flags.field);
+		printf(", %s, ", args->flags.delim);
+		print_fields(args->flags.flags);
+		printf(")");
+		break;
+	case PRINT_SYMBOL:
+		printf("__print_symbolic(");
+		print_args(args->symbol.field);
+		printf(", ");
+		print_fields(args->symbol.symbols);
+		printf(")");
+		break;
+	case PRINT_STRING:
+		printf("__get_str(%s)", args->string.string);
+		break;
+	case PRINT_TYPE:
+		printf("(%s)", args->typecast.type);
+		print_args(args->typecast.item);
+		break;
+	case PRINT_OP:
+		if (strcmp(args->op.op, ":") == 0)
+			print_paren = 0;
+		if (print_paren)
+			printf("(");
+		print_args(args->op.left);
+		printf(" %s ", args->op.op);
+		print_args(args->op.right);
+		if (print_paren)
+			printf(")");
+		break;
+	default:
+		/* we should warn... */
+		return;
+	}
+	if (args->next) {
+		printf("\n");
+		print_args(args->next);
+	}
+}
+
+int parse_ftrace_file(char *buf, unsigned long size)
+{
+	struct format_field *field;
+	struct print_arg *arg, **list;
+	struct event *event;
+	int ret;
+
+	init_input_buf(buf, size);
+
+	event = alloc_event();
+	if (!event)
+		return -ENOMEM;
+
+	event->flags |= EVENT_FL_ISFTRACE;
+
+	event->name = event_read_name();
+	if (!event->name)
+		die("failed to read ftrace event name");
+
+	if (strcmp(event->name, "function") == 0)
+		event->flags |= EVENT_FL_ISFUNC;
+
+	else if (strcmp(event->name, "funcgraph_entry") == 0)
+		event->flags |= EVENT_FL_ISFUNCENT;
+
+	else if (strcmp(event->name, "funcgraph_exit") == 0)
+		event->flags |= EVENT_FL_ISFUNCRET;
+
+	else if (strcmp(event->name, "bprint") == 0)
+		event->flags |= EVENT_FL_ISBPRINT;
+
+	event->id = event_read_id();
+	if (event->id < 0)
+		die("failed to read ftrace event id");
+
+	add_event(event);
+
+	ret = event_read_format(event);
+	if (ret < 0)
+		die("failed to read ftrace event format");
+
+	ret = event_read_print(event);
+	if (ret < 0)
+		die("failed to read ftrace event print fmt");
+
+	/* New ftrace handles args */
+	if (ret > 0)
+		return 0;
+	/*
+	 * The arguments for ftrace files are parsed by the fields.
+	 * Set up the fields as their arguments.
+	 */
+	list = &event->print_fmt.args;
+	for (field = event->format.fields; field; field = field->next) {
+		arg = malloc_or_die(sizeof(*arg));
+		memset(arg, 0, sizeof(*arg));
+		*list = arg;
+		list = &arg->next;
+		arg->type = PRINT_FIELD;
+		arg->field.name = field->name;
+		arg->field.field = field;
+	}
+	return 0;
+}
+
+int parse_event_file(char *buf, unsigned long size, char *sys)
+{
+	struct event *event;
+	int ret;
+
+	init_input_buf(buf, size);
+
+	event = alloc_event();
+	if (!event)
+		return -ENOMEM;
+
+	event->name = event_read_name();
+	if (!event->name)
+		die("failed to read event name");
+
+	event->id = event_read_id();
+	if (event->id < 0)
+		die("failed to read event id");
+
+	ret = event_read_format(event);
+	if (ret < 0) {
+		warning("failed to read event format for %s", event->name);
+		goto event_failed;
+	}
+
+	ret = event_read_print(event);
+	if (ret < 0) {
+		warning("failed to read event print fmt for %s", event->name);
+		goto event_failed;
+	}
+
+	event->system = strdup(sys);
+
+#define PRINT_ARGS 0
+	if (PRINT_ARGS && event->print_fmt.args)
+		print_args(event->print_fmt.args);
+
+	add_event(event);
+	return 0;
+
+ event_failed:
+	event->flags |= EVENT_FL_FAILED;
+	/* still add it even if it failed */
+	add_event(event);
+	return -1;
+}
+
+void parse_set_info(int nr_cpus, int long_sz)
+{
+	cpus = nr_cpus;
+	long_size = long_sz;
+}
+
+int common_pc(struct scripting_context *context)
+{
+	return parse_common_pc(context->event_data);
+}
+
+int common_flags(struct scripting_context *context)
+{
+	return parse_common_flags(context->event_data);
+}
+
+int common_lock_depth(struct scripting_context *context)
+{
+	return parse_common_lock_depth(context->event_data);
+}
diff --git a/tools/lib/trace/trace-event-read.c b/tools/lib/trace/trace-event-read.c
new file mode 100644
index 0000000..d7d8ceb
--- /dev/null
+++ b/tools/lib/trace/trace-event-read.c
@@ -0,0 +1,539 @@
+/*
+ * Copyright (C) 2009, Steven Rostedt <srostedt@xxxxxxxxxx>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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 _FILE_OFFSET_BITS 64
+
+#include <dirent.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <sys/mman.h>
+#include <pthread.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include <perf.h>
+#include <lk/util.h>
+#include <util/trace-event.h>
+
+static int input_fd;
+
+static int read_page;
+
+int file_bigendian;
+int host_bigendian;
+static int long_size;
+
+static unsigned long	page_size;
+
+static ssize_t calc_data_size;
+static bool repipe;
+
+static int do_read(int fd, void *buf, int size)
+{
+	int rsize = size;
+
+	while (size) {
+		int ret = read(fd, buf, size);
+
+		if (ret <= 0)
+			return -1;
+
+		if (repipe) {
+			int retw = write(STDOUT_FILENO, buf, ret);
+
+			if (retw <= 0 || retw != ret)
+				die("repiping input file");
+		}
+
+		size -= ret;
+		buf += ret;
+	}
+
+	return rsize;
+}
+
+static int read_or_die(void *data, int size)
+{
+	int r;
+
+	r = do_read(input_fd, data, size);
+	if (r <= 0)
+		die("reading input file (size expected=%d received=%d)",
+		    size, r);
+
+	if (calc_data_size)
+		calc_data_size += r;
+
+	return r;
+}
+
+/* If it fails, the next read will report it */
+static void skip(int size)
+{
+	char buf[BUFSIZ];
+	int r;
+
+	while (size) {
+		r = size > BUFSIZ ? BUFSIZ : size;
+		read_or_die(buf, r);
+		size -= r;
+	};
+}
+
+static unsigned int read4(void)
+{
+	unsigned int data;
+
+	read_or_die(&data, 4);
+	return __data2host4(data);
+}
+
+static unsigned long long read8(void)
+{
+	unsigned long long data;
+
+	read_or_die(&data, 8);
+	return __data2host8(data);
+}
+
+static char *read_string(void)
+{
+	char buf[BUFSIZ];
+	char *str = NULL;
+	int size = 0;
+	off_t r;
+	char c;
+
+	for (;;) {
+		r = read(input_fd, &c, 1);
+		if (r < 0)
+			die("reading input file");
+
+		if (!r)
+			die("no data");
+
+		if (repipe) {
+			int retw = write(STDOUT_FILENO, &c, 1);
+
+			if (retw <= 0 || retw != r)
+				die("repiping input file string");
+		}
+
+		buf[size++] = c;
+
+		if (!c)
+			break;
+	}
+
+	if (calc_data_size)
+		calc_data_size += size;
+
+	str = malloc_or_die(size);
+	memcpy(str, buf, size);
+
+	return str;
+}
+
+static void read_proc_kallsyms(void)
+{
+	unsigned int size;
+	char *buf;
+
+	size = read4();
+	if (!size)
+		return;
+
+	buf = malloc_or_die(size + 1);
+	read_or_die(buf, size);
+	buf[size] = '\0';
+
+	parse_proc_kallsyms(buf, size);
+
+	free(buf);
+}
+
+static void read_ftrace_printk(void)
+{
+	unsigned int size;
+	char *buf;
+
+	size = read4();
+	if (!size)
+		return;
+
+	buf = malloc_or_die(size);
+	read_or_die(buf, size);
+
+	parse_ftrace_printk(buf, size);
+
+	free(buf);
+}
+
+static void read_header_files(void)
+{
+	unsigned long long size;
+	char *header_event;
+	char buf[BUFSIZ];
+
+	read_or_die(buf, 12);
+
+	if (memcmp(buf, "header_page", 12) != 0)
+		die("did not read header page");
+
+	size = read8();
+	skip(size);
+
+	/*
+	 * The size field in the page is of type long,
+	 * use that instead, since it represents the kernel.
+	 */
+	long_size = header_page_size_size;
+
+	read_or_die(buf, 13);
+	if (memcmp(buf, "header_event", 13) != 0)
+		die("did not read header event");
+
+	size = read8();
+	header_event = malloc_or_die(size);
+	read_or_die(header_event, size);
+	free(header_event);
+}
+
+static void read_ftrace_file(unsigned long long size)
+{
+	char *buf;
+
+	buf = malloc_or_die(size);
+	read_or_die(buf, size);
+	parse_ftrace_file(buf, size);
+	free(buf);
+}
+
+static void read_event_file(char *sys, unsigned long long size)
+{
+	char *buf;
+
+	buf = malloc_or_die(size);
+	read_or_die(buf, size);
+	parse_event_file(buf, size, sys);
+	free(buf);
+}
+
+static void read_ftrace_files(void)
+{
+	unsigned long long size;
+	int count;
+	int i;
+
+	count = read4();
+
+	for (i = 0; i < count; i++) {
+		size = read8();
+		read_ftrace_file(size);
+	}
+}
+
+static void read_event_files(void)
+{
+	unsigned long long size;
+	char *sys;
+	int systems;
+	int count;
+	int i,x;
+
+	systems = read4();
+
+	for (i = 0; i < systems; i++) {
+		sys = read_string();
+
+		count = read4();
+		for (x=0; x < count; x++) {
+			size = read8();
+			read_event_file(sys, size);
+		}
+	}
+}
+
+struct cpu_data {
+	unsigned long long	offset;
+	unsigned long long	size;
+	unsigned long long	timestamp;
+	struct record		*next;
+	char			*page;
+	int			cpu;
+	int			index;
+	int			page_size;
+};
+
+static struct cpu_data *cpu_data;
+
+static void update_cpu_data_index(int cpu)
+{
+	cpu_data[cpu].offset += page_size;
+	cpu_data[cpu].size -= page_size;
+	cpu_data[cpu].index = 0;
+}
+
+static void get_next_page(int cpu)
+{
+	off_t save_seek;
+	off_t ret;
+
+	if (!cpu_data[cpu].page)
+		return;
+
+	if (read_page) {
+		if (cpu_data[cpu].size <= page_size) {
+			free(cpu_data[cpu].page);
+			cpu_data[cpu].page = NULL;
+			return;
+		}
+
+		update_cpu_data_index(cpu);
+
+		/* other parts of the code may expect the pointer to not move */
+		save_seek = lseek(input_fd, 0, SEEK_CUR);
+
+		ret = lseek(input_fd, cpu_data[cpu].offset, SEEK_SET);
+		if (ret == (off_t)-1)
+			die("failed to lseek");
+		ret = read(input_fd, cpu_data[cpu].page, page_size);
+		if (ret < 0)
+			die("failed to read page");
+
+		/* reset the file pointer back */
+		lseek(input_fd, save_seek, SEEK_SET);
+
+		return;
+	}
+
+	munmap(cpu_data[cpu].page, page_size);
+	cpu_data[cpu].page = NULL;
+
+	if (cpu_data[cpu].size <= page_size)
+		return;
+
+	update_cpu_data_index(cpu);
+
+	cpu_data[cpu].page = mmap(NULL, page_size, PROT_READ, MAP_PRIVATE,
+				  input_fd, cpu_data[cpu].offset);
+	if (cpu_data[cpu].page == MAP_FAILED)
+		die("failed to mmap cpu %d at offset 0x%llx",
+		    cpu, cpu_data[cpu].offset);
+}
+
+static unsigned int type_len4host(unsigned int type_len_ts)
+{
+	if (file_bigendian)
+		return (type_len_ts >> 27) & ((1 << 5) - 1);
+	else
+		return type_len_ts & ((1 << 5) - 1);
+}
+
+static unsigned int ts4host(unsigned int type_len_ts)
+{
+	if (file_bigendian)
+		return type_len_ts & ((1 << 27) - 1);
+	else
+		return type_len_ts >> 5;
+}
+
+static int calc_index(void *ptr, int cpu)
+{
+	return (unsigned long)ptr - (unsigned long)cpu_data[cpu].page;
+}
+
+struct record *trace_peek_data(int cpu)
+{
+	struct record *data;
+	void *page = cpu_data[cpu].page;
+	int idx = cpu_data[cpu].index;
+	void *ptr = page + idx;
+	unsigned long long extend;
+	unsigned int type_len_ts;
+	unsigned int type_len;
+	unsigned int delta;
+	unsigned int length = 0;
+
+	if (cpu_data[cpu].next)
+		return cpu_data[cpu].next;
+
+	if (!page)
+		return NULL;
+
+	if (!idx) {
+		/* FIXME: handle header page */
+		if (header_page_ts_size != 8)
+			die("expected a long long type for timestamp");
+		cpu_data[cpu].timestamp = data2host8(ptr);
+		ptr += 8;
+		switch (header_page_size_size) {
+		case 4:
+			cpu_data[cpu].page_size = data2host4(ptr);
+			ptr += 4;
+			break;
+		case 8:
+			cpu_data[cpu].page_size = data2host8(ptr);
+			ptr += 8;
+			break;
+		default:
+			die("bad long size");
+		}
+		ptr = cpu_data[cpu].page + header_page_data_offset;
+	}
+
+read_again:
+	idx = calc_index(ptr, cpu);
+
+	if (idx >= cpu_data[cpu].page_size) {
+		get_next_page(cpu);
+		return trace_peek_data(cpu);
+	}
+
+	type_len_ts = data2host4(ptr);
+	ptr += 4;
+
+	type_len = type_len4host(type_len_ts);
+	delta = ts4host(type_len_ts);
+
+	switch (type_len) {
+	case RINGBUF_TYPE_PADDING:
+		if (!delta)
+			die("error, hit unexpected end of page");
+		length = data2host4(ptr);
+		ptr += 4;
+		length *= 4;
+		ptr += length;
+		goto read_again;
+
+	case RINGBUF_TYPE_TIME_EXTEND:
+		extend = data2host4(ptr);
+		ptr += 4;
+		extend <<= TS_SHIFT;
+		extend += delta;
+		cpu_data[cpu].timestamp += extend;
+		goto read_again;
+
+	case RINGBUF_TYPE_TIME_STAMP:
+		ptr += 12;
+		break;
+	case 0:
+		length = data2host4(ptr);
+		ptr += 4;
+		die("here! length=%d", length);
+		break;
+	default:
+		length = type_len * 4;
+		break;
+	}
+
+	cpu_data[cpu].timestamp += delta;
+
+	data = malloc_or_die(sizeof(*data));
+	memset(data, 0, sizeof(*data));
+
+	data->ts = cpu_data[cpu].timestamp;
+	data->size = length;
+	data->data = ptr;
+	ptr += length;
+
+	cpu_data[cpu].index = calc_index(ptr, cpu);
+	cpu_data[cpu].next = data;
+
+	return data;
+}
+
+struct record *trace_read_data(int cpu)
+{
+	struct record *data;
+
+	data = trace_peek_data(cpu);
+	cpu_data[cpu].next = NULL;
+
+	return data;
+}
+
+ssize_t trace_report(int fd, bool __repipe)
+{
+	char buf[BUFSIZ];
+	char test[] = { 23, 8, 68 };
+	char *version;
+	int show_version = 0;
+	int show_funcs = 0;
+	int show_printk = 0;
+	ssize_t size;
+
+	calc_data_size = 1;
+	repipe = __repipe;
+
+	input_fd = fd;
+
+	read_or_die(buf, 3);
+	if (memcmp(buf, test, 3) != 0)
+		die("no trace data in the file");
+
+	read_or_die(buf, 7);
+	if (memcmp(buf, "tracing", 7) != 0)
+		die("not a trace file (missing 'tracing' tag)");
+
+	version = read_string();
+	if (show_version)
+		printf("version = %s\n", version);
+	free(version);
+
+	read_or_die(buf, 1);
+	file_bigendian = buf[0];
+	host_bigendian = bigendian();
+
+	read_or_die(buf, 1);
+	long_size = buf[0];
+
+	page_size = read4();
+
+	read_header_files();
+
+	read_ftrace_files();
+	read_event_files();
+	read_proc_kallsyms();
+	read_ftrace_printk();
+
+	size = calc_data_size - 1;
+	calc_data_size = 0;
+	repipe = false;
+
+	if (show_funcs) {
+		print_funcs();
+		return size;
+	}
+	if (show_printk) {
+		print_printk();
+		return size;
+	}
+
+	return size;
+}
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 001831e..590c8f6 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -383,9 +383,6 @@ LIB_OBJS += $(OUTPUT)util/sigchain.o
 LIB_OBJS += $(OUTPUT)util/pager.o
 LIB_OBJS += $(OUTPUT)util/callchain.o
 LIB_OBJS += $(OUTPUT)util/values.o
-LIB_OBJS += $(OUTPUT)util/trace-event-parse.o
-LIB_OBJS += $(OUTPUT)util/trace-event-read.o
-LIB_OBJS += $(OUTPUT)util/trace-event-info.o
 LIB_OBJS += $(OUTPUT)util/trace-event-scripting.o
 LIB_OBJS += $(OUTPUT)util/svghelper.o
 LIB_OBJS += $(OUTPUT)util/probe-event.o
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
deleted file mode 100644
index 0918a63..0000000
--- a/tools/perf/util/trace-event-info.c
+++ /dev/null
@@ -1,563 +0,0 @@
-/*
- * Copyright (C) 2008,2009, Steven Rostedt <srostedt@xxxxxxxxxx>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * 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 <mntent.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 <linux/kernel.h>
-
-#include "../perf.h"
-#include "trace-event.h"
-#include <lk/debugfs.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)
-{
-	const char *path = debugfs_mount(NULL);
-
-	if (!path)
-		die("Your kernel not support debugfs filesystem");
-
-	return path;
-}
-
-/*
- * 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 calc_data_size;
-
-static ssize_t write_or_die(const void *buf, size_t len)
-{
-	int ret;
-
-	if (calc_data_size) {
-		calc_data_size += len;
-		return len;
-	}
-
-	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 *)(void *)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);
-	close(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);
-	close(fd);
-}
-
-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 (dent->d_type != DT_DIR ||
-		    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 (dent->d_type != DT_DIR ||
-		    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);
-	}
-	closedir(dir);
-}
-
-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 (dent->d_type != DT_DIR ||
-		    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;
-		count++;
-	}
-
-	write_or_die(&count, 4);
-
-	rewinddir(dir);
-	while ((dent = readdir(dir))) {
-		if (dent->d_type != DT_DIR ||
-		    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) {
-			write_or_die(dent->d_name, strlen(dent->d_name) + 1);
-			copy_event_system(sys, tps);
-		}
-		free(sys);
-	}
-
-	closedir(dir);
-	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;
-	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);
-		goto out;
-	}
-	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);
-out:
-	put_tracing_file(path);
-}
-
-static struct tracepoint_path *
-get_tracepoints_path(struct perf_event_attr *pattrs, int nb_events)
-{
-	struct tracepoint_path path, *ppath = &path;
-	int i, nr_tracepoints = 0;
-
-	for (i = 0; i < nb_events; i++) {
-		if (pattrs[i].type != PERF_TYPE_TRACEPOINT)
-			continue;
-		++nr_tracepoints;
-		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 nr_tracepoints > 0 ? path.next : NULL;
-}
-
-bool have_tracepoints(struct perf_event_attr *pattrs, int nb_events)
-{
-	int i;
-
-	for (i = 0; i < nb_events; i++)
-		if (pattrs[i].type == PERF_TYPE_TRACEPOINT)
-			return true;
-
-	return false;
-}
-
-int read_tracing_data(int fd, struct perf_event_attr *pattrs, int nb_events)
-{
-	char buf[BUFSIZ];
-	struct tracepoint_path *tps = get_tracepoints_path(pattrs, nb_events);
-
-	/*
-	 * What? No tracepoints? No sense writing anything here, bail out.
-	 */
-	if (tps == NULL)
-		return -1;
-
-	output_fd = fd;
-
-	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 = sysconf(_SC_PAGESIZE);
-	write_or_die(&page_size, 4);
-
-	read_header_files();
-	read_ftrace_files(tps);
-	read_event_files(tps);
-	read_proc_kallsyms();
-	read_ftrace_printk();
-
-	return 0;
-}
-
-ssize_t read_tracing_data_size(int fd, struct perf_event_attr *pattrs,
-			       int nb_events)
-{
-	ssize_t size;
-	int err = 0;
-
-	calc_data_size = 1;
-	err = read_tracing_data(fd, pattrs, nb_events);
-	size = calc_data_size - 1;
-	calc_data_size = 0;
-
-	if (err < 0)
-		return err;
-
-	return size;
-}
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
deleted file mode 100644
index 9a46fa1..0000000
--- a/tools/perf/util/trace-event-parse.c
+++ /dev/null
@@ -1,3233 +0,0 @@
-/*
- * Copyright (C) 2009, Steven Rostedt <srostedt@xxxxxxxxxx>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * 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 <lk/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_overwrite_offset;
-int header_page_overwrite_size;
-int header_page_data_offset;
-int header_page_data_size;
-
-bool latency_format;
-
-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 int is_flag_field;
-static int is_symbolic_field;
-
-static struct format_field *
-find_any_field(struct event *event, const char *name);
-
-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 *)(void *)&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 *)(void *)&addr_str, /* workaround gcc warning */
-			     &ch,
-			     (float *)(void *)&item->func,
-			     (float *)(void *)&item->mod);
-		item->addr = strtoull(addr_str, NULL, 16);
-		free(addr_str);
-
-		/* truncate the extra ']' */
-		if (item->mod)
-			item->mod[strlen(item->mod) - 1] = 0;
-
-
-		item->next = list;
-		list = item;
-		line = strtok_r(NULL, "\n", &next);
-		func_count++;
-	}
-
-	func_list = malloc_or_die(sizeof(*func_list) * (func_count + 1));
-
-	i = 0;
-	while (list) {
-		func_list[i].func = list->func;
-		func_list[i].addr = list->addr;
-		func_list[i].mod = list->mod;
-		i++;
-		item = list;
-		list = list->next;
-		free(item);
-	}
-
-	qsort(func_list, func_count, sizeof(*func_list), func_cmp);
-
-	/*
-	 * Add a special record at the end.
-	 */
-	func_list[func_count].func = NULL;
-	func_list[func_count].addr = 0;
-	func_list[func_count].mod = NULL;
-}
-
-/*
- * We are searching for a record in between, not an exact
- * match.
- */
-static int func_bcmp(const void *a, const void *b)
-{
-	const struct func_map *fa = a;
-	const struct func_map *fb = b;
-
-	if ((fa->addr == fb->addr) ||
-
-	    (fa->addr > fb->addr &&
-	     fa->addr < (fb+1)->addr))
-		return 0;
-
-	if (fa->addr < fb->addr)
-		return -1;
-
-	return 1;
-}
-
-static struct func_map *find_func(unsigned long long addr)
-{
-	struct func_map *func;
-	struct func_map key;
-
-	key.addr = addr;
-
-	func = bsearch(&key, func_list, func_count, sizeof(*func_list),
-		       func_bcmp);
-
-	return func;
-}
-
-void print_funcs(void)
-{
-	int i;
-
-	for (i = 0; i < (int)func_count; i++) {
-		printf("%016llx %s",
-		       func_list[i].addr,
-		       func_list[i].func);
-		if (func_list[i].mod)
-			printf(" [%s]\n", func_list[i].mod);
-		else
-			printf("\n");
-	}
-}
-
-static struct printk_map {
-	unsigned long long		addr;
-	char				*printk;
-} *printk_list;
-static unsigned int printk_count;
-
-static int printk_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;
-}
-
-static struct printk_map *find_printk(unsigned long long addr)
-{
-	struct printk_map *printk;
-	struct printk_map key;
-
-	key.addr = addr;
-
-	printk = bsearch(&key, printk_list, printk_count, sizeof(*printk_list),
-			 printk_cmp);
-
-	return printk;
-}
-
-void parse_ftrace_printk(char *file, unsigned int size __unused)
-{
-	struct printk_list {
-		struct printk_list	*next;
-		unsigned long long	addr;
-		char			*printk;
-	} *list = NULL, *item;
-	char *line;
-	char *next = NULL;
-	char *addr_str;
-	int i;
-
-	line = strtok_r(file, "\n", &next);
-	while (line) {
-		addr_str = strsep(&line, ":");
-		if (!line) {
-			warning("error parsing print strings");
-			break;
-		}
-		item = malloc_or_die(sizeof(*item));
-		item->addr = strtoull(addr_str, NULL, 16);
-		/* fmt still has a space, skip it */
-		item->printk = strdup(line+1);
-		item->next = list;
-		list = item;
-		line = strtok_r(NULL, "\n", &next);
-		printk_count++;
-	}
-
-	printk_list = malloc_or_die(sizeof(*printk_list) * printk_count + 1);
-
-	i = 0;
-	while (list) {
-		printk_list[i].printk = list->printk;
-		printk_list[i].addr = list->addr;
-		i++;
-		item = list;
-		list = list->next;
-		free(item);
-	}
-
-	qsort(printk_list, printk_count, sizeof(*printk_list), printk_cmp);
-}
-
-void print_printk(void)
-{
-	int i;
-
-	for (i = 0; i < (int)printk_count; i++) {
-		printf("%016llx %s\n",
-		       printk_list[i].addr,
-		       printk_list[i].printk);
-	}
-}
-
-static struct event *alloc_event(void)
-{
-	struct event *event;
-
-	event = malloc_or_die(sizeof(*event));
-	memset(event, 0, sizeof(*event));
-
-	return event;
-}
-
-enum event_type {
-	EVENT_ERROR,
-	EVENT_NONE,
-	EVENT_SPACE,
-	EVENT_NEWLINE,
-	EVENT_OP,
-	EVENT_DELIM,
-	EVENT_ITEM,
-	EVENT_DQUOTE,
-	EVENT_SQUOTE,
-};
-
-static struct event *event_list;
-
-static void add_event(struct event *event)
-{
-	event->next = event_list;
-	event_list = event;
-}
-
-static int event_item_type(enum event_type type)
-{
-	switch (type) {
-	case EVENT_ITEM ... EVENT_SQUOTE:
-		return 1;
-	case EVENT_ERROR ... EVENT_DELIM:
-	default:
-		return 0;
-	}
-}
-
-static void free_arg(struct print_arg *arg)
-{
-	if (!arg)
-		return;
-
-	switch (arg->type) {
-	case PRINT_ATOM:
-		if (arg->atom.atom)
-			free(arg->atom.atom);
-		break;
-	case PRINT_NULL:
-	case PRINT_FIELD ... PRINT_OP:
-	default:
-		/* todo */
-		break;
-	}
-
-	free(arg);
-}
-
-static enum event_type get_type(int ch)
-{
-	if (ch == '\n')
-		return EVENT_NEWLINE;
-	if (isspace(ch))
-		return EVENT_SPACE;
-	if (isalnum(ch) || ch == '_')
-		return EVENT_ITEM;
-	if (ch == '\'')
-		return EVENT_SQUOTE;
-	if (ch == '"')
-		return EVENT_DQUOTE;
-	if (!isprint(ch))
-		return EVENT_NONE;
-	if (ch == '(' || ch == ')' || ch == ',')
-		return EVENT_DELIM;
-
-	return EVENT_OP;
-}
-
-static int __read_char(void)
-{
-	if (input_buf_ptr >= input_buf_siz)
-		return -1;
-
-	return input_buf[input_buf_ptr++];
-}
-
-static int __peek_char(void)
-{
-	if (input_buf_ptr >= input_buf_siz)
-		return -1;
-
-	return input_buf[input_buf_ptr];
-}
-
-static enum event_type __read_token(char **tok)
-{
-	char buf[BUFSIZ];
-	int ch, last_ch, quote_ch, next_ch;
-	int i = 0;
-	int tok_size = 0;
-	enum event_type type;
-
-	*tok = NULL;
-
-
-	ch = __read_char();
-	if (ch < 0)
-		return EVENT_NONE;
-
-	type = get_type(ch);
-	if (type == EVENT_NONE)
-		return type;
-
-	buf[i++] = ch;
-
-	switch (type) {
-	case EVENT_NEWLINE:
-	case EVENT_DELIM:
-		*tok = malloc_or_die(2);
-		(*tok)[0] = ch;
-		(*tok)[1] = 0;
-		return type;
-
-	case EVENT_OP:
-		switch (ch) {
-		case '-':
-			next_ch = __peek_char();
-			if (next_ch == '>') {
-				buf[i++] = __read_char();
-				break;
-			}
-			/* fall through */
-		case '+':
-		case '|':
-		case '&':
-		case '>':
-		case '<':
-			last_ch = ch;
-			ch = __peek_char();
-			if (ch != last_ch)
-				goto test_equal;
-			buf[i++] = __read_char();
-			switch (last_ch) {
-			case '>':
-			case '<':
-				goto test_equal;
-			default:
-				break;
-			}
-			break;
-		case '!':
-		case '=':
-			goto test_equal;
-		default: /* what should we do instead? */
-			break;
-		}
-		buf[i] = 0;
-		*tok = strdup(buf);
-		return type;
-
- test_equal:
-		ch = __peek_char();
-		if (ch == '=')
-			buf[i++] = __read_char();
-		break;
-
-	case EVENT_DQUOTE:
-	case EVENT_SQUOTE:
-		/* don't keep quotes */
-		i--;
-		quote_ch = ch;
-		last_ch = 0;
-		do {
-			if (i == (BUFSIZ - 1)) {
-				buf[i] = 0;
-				if (*tok) {
-					*tok = realloc(*tok, tok_size + BUFSIZ);
-					if (!*tok)
-						return EVENT_NONE;
-					strcat(*tok, buf);
-				} else
-					*tok = strdup(buf);
-
-				if (!*tok)
-					return EVENT_NONE;
-				tok_size += BUFSIZ;
-				i = 0;
-			}
-			last_ch = ch;
-			ch = __read_char();
-			buf[i++] = ch;
-			/* the '\' '\' will cancel itself */
-			if (ch == '\\' && last_ch == '\\')
-				last_ch = 0;
-		} while (ch != quote_ch || last_ch == '\\');
-		/* remove the last quote */
-		i--;
-		goto out;
-
-	case EVENT_ERROR ... EVENT_SPACE:
-	case EVENT_ITEM:
-	default:
-		break;
-	}
-
-	while (get_type(__peek_char()) == type) {
-		if (i == (BUFSIZ - 1)) {
-			buf[i] = 0;
-			if (*tok) {
-				*tok = realloc(*tok, tok_size + BUFSIZ);
-				if (!*tok)
-					return EVENT_NONE;
-				strcat(*tok, buf);
-			} else
-				*tok = strdup(buf);
-
-			if (!*tok)
-				return EVENT_NONE;
-			tok_size += BUFSIZ;
-			i = 0;
-		}
-		ch = __read_char();
-		buf[i++] = ch;
-	}
-
- out:
-	buf[i] = 0;
-	if (*tok) {
-		*tok = realloc(*tok, tok_size + i);
-		if (!*tok)
-			return EVENT_NONE;
-		strcat(*tok, buf);
-	} else
-		*tok = strdup(buf);
-	if (!*tok)
-		return EVENT_NONE;
-
-	return type;
-}
-
-static void free_token(char *tok)
-{
-	if (tok)
-		free(tok);
-}
-
-static enum event_type read_token(char **tok)
-{
-	enum event_type type;
-
-	for (;;) {
-		type = __read_token(tok);
-		if (type != EVENT_SPACE)
-			return type;
-
-		free_token(*tok);
-	}
-
-	/* not reached */
-	return EVENT_NONE;
-}
-
-/* no newline */
-static enum event_type read_token_item(char **tok)
-{
-	enum event_type type;
-
-	for (;;) {
-		type = __read_token(tok);
-		if (type != EVENT_SPACE && type != EVENT_NEWLINE)
-			return type;
-
-		free_token(*tok);
-	}
-
-	/* not reached */
-	return EVENT_NONE;
-}
-
-static int test_type(enum event_type type, enum event_type expect)
-{
-	if (type != expect) {
-		warning("Error: expected type %d but read %d",
-		    expect, type);
-		return -1;
-	}
-	return 0;
-}
-
-static int __test_type_token(enum event_type type, char *token,
-			     enum event_type expect, const char *expect_tok,
-			     bool warn)
-{
-	if (type != expect) {
-		if (warn)
-			warning("Error: expected type %d but read %d",
-				expect, type);
-		return -1;
-	}
-
-	if (strcmp(token, expect_tok) != 0) {
-		if (warn)
-			warning("Error: expected '%s' but read '%s'",
-				expect_tok, token);
-		return -1;
-	}
-	return 0;
-}
-
-static int test_type_token(enum event_type type, char *token,
-			   enum event_type expect, const char *expect_tok)
-{
-	return __test_type_token(type, token, expect, expect_tok, true);
-}
-
-static int __read_expect_type(enum event_type expect, char **tok, int newline_ok)
-{
-	enum event_type type;
-
-	if (newline_ok)
-		type = read_token(tok);
-	else
-		type = read_token_item(tok);
-	return test_type(type, expect);
-}
-
-static int read_expect_type(enum event_type expect, char **tok)
-{
-	return __read_expect_type(expect, tok, 1);
-}
-
-static int __read_expected(enum event_type expect, const char *str,
-			   int newline_ok, bool warn)
-{
-	enum event_type type;
-	char *token;
-	int ret;
-
-	if (newline_ok)
-		type = read_token(&token);
-	else
-		type = read_token_item(&token);
-
-	ret = __test_type_token(type, token, expect, str, warn);
-
-	free_token(token);
-
-	return ret;
-}
-
-static int read_expected(enum event_type expect, const char *str)
-{
-	return __read_expected(expect, str, 1, true);
-}
-
-static int read_expected_item(enum event_type expect, const char *str)
-{
-	return __read_expected(expect, str, 0, true);
-}
-
-static char *event_read_name(void)
-{
-	char *token;
-
-	if (read_expected(EVENT_ITEM, "name") < 0)
-		return NULL;
-
-	if (read_expected(EVENT_OP, ":") < 0)
-		return NULL;
-
-	if (read_expect_type(EVENT_ITEM, &token) < 0)
-		goto fail;
-
-	return token;
-
- fail:
-	free_token(token);
-	return NULL;
-}
-
-static int event_read_id(void)
-{
-	char *token;
-	int id;
-
-	if (read_expected_item(EVENT_ITEM, "ID") < 0)
-		return -1;
-
-	if (read_expected(EVENT_OP, ":") < 0)
-		return -1;
-
-	if (read_expect_type(EVENT_ITEM, &token) < 0)
-		goto fail;
-
-	id = strtoul(token, NULL, 0);
-	free_token(token);
-	return id;
-
- fail:
-	free_token(token);
-	return -1;
-}
-
-static int field_is_string(struct format_field *field)
-{
-	if ((field->flags & FIELD_IS_ARRAY) &&
-	    (!strstr(field->type, "char") || !strstr(field->type, "u8") ||
-	     !strstr(field->type, "s8")))
-		return 1;
-
-	return 0;
-}
-
-static int field_is_dynamic(struct format_field *field)
-{
-	if (!strncmp(field->type, "__data_loc", 10))
-		return 1;
-
-	return 0;
-}
-
-static int event_read_fields(struct event *event, struct format_field **fields)
-{
-	struct format_field *field = NULL;
-	enum event_type type;
-	char *token;
-	char *last_token;
-	int count = 0;
-
-	do {
-		type = read_token(&token);
-		if (type == EVENT_NEWLINE) {
-			free_token(token);
-			return count;
-		}
-
-		count++;
-
-		if (test_type_token(type, token, EVENT_ITEM, "field"))
-			goto fail;
-		free_token(token);
-
-		type = read_token(&token);
-		/*
-		 * The ftrace fields may still use the "special" name.
-		 * Just ignore it.
-		 */
-		if (event->flags & EVENT_FL_ISFTRACE &&
-		    type == EVENT_ITEM && strcmp(token, "special") == 0) {
-			free_token(token);
-			type = read_token(&token);
-		}
-
-		if (test_type_token(type, token, EVENT_OP, ":") < 0)
-			return -1;
-
-		if (read_expect_type(EVENT_ITEM, &token) < 0)
-			goto fail;
-
-		last_token = token;
-
-		field = malloc_or_die(sizeof(*field));
-		memset(field, 0, sizeof(*field));
-
-		/* read the rest of the type */
-		for (;;) {
-			type = read_token(&token);
-			if (type == EVENT_ITEM ||
-			    (type == EVENT_OP && strcmp(token, "*") == 0) ||
-			    /*
-			     * Some of the ftrace fields are broken and have
-			     * an illegal "." in them.
-			     */
-			    (event->flags & EVENT_FL_ISFTRACE &&
-			     type == EVENT_OP && strcmp(token, ".") == 0)) {
-
-				if (strcmp(token, "*") == 0)
-					field->flags |= FIELD_IS_POINTER;
-
-				if (field->type) {
-					field->type = realloc(field->type,
-							      strlen(field->type) +
-							      strlen(last_token) + 2);
-					strcat(field->type, " ");
-					strcat(field->type, last_token);
-				} else
-					field->type = last_token;
-				last_token = token;
-				continue;
-			}
-
-			break;
-		}
-
-		if (!field->type) {
-			die("no type found");
-			goto fail;
-		}
-		field->name = last_token;
-
-		if (test_type(type, EVENT_OP))
-			goto fail;
-
-		if (strcmp(token, "[") == 0) {
-			enum event_type last_type = type;
-			char *brackets = token;
-			int len;
-
-			field->flags |= FIELD_IS_ARRAY;
-
-			type = read_token(&token);
-		        while (strcmp(token, "]") != 0) {
-				if (last_type == EVENT_ITEM &&
-				    type == EVENT_ITEM)
-					len = 2;
-				else
-					len = 1;
-				last_type = type;
-
-				brackets = realloc(brackets,
-						   strlen(brackets) +
-						   strlen(token) + len);
-				if (len == 2)
-					strcat(brackets, " ");
-				strcat(brackets, token);
-				free_token(token);
-				type = read_token(&token);
-				if (type == EVENT_NONE) {
-					die("failed to find token");
-					goto fail;
-				}
-			}
-
-			free_token(token);
-
-			brackets = realloc(brackets, strlen(brackets) + 2);
-			strcat(brackets, "]");
-
-			/* add brackets to type */
-
-			type = read_token(&token);
-			/*
-			 * If the next token is not an OP, then it is of
-			 * the format: type [] item;
-			 */
-			if (type == EVENT_ITEM) {
-				field->type = realloc(field->type,
-						      strlen(field->type) +
-						      strlen(field->name) +
-						      strlen(brackets) + 2);
-				strcat(field->type, " ");
-				strcat(field->type, field->name);
-				free_token(field->name);
-				strcat(field->type, brackets);
-				field->name = token;
-				type = read_token(&token);
-			} else {
-				field->type = realloc(field->type,
-						      strlen(field->type) +
-						      strlen(brackets) + 1);
-				strcat(field->type, brackets);
-			}
-			free(brackets);
-		}
-
-		if (field_is_string(field)) {
-			field->flags |= FIELD_IS_STRING;
-			if (field_is_dynamic(field))
-				field->flags |= FIELD_IS_DYNAMIC;
-		}
-
-		if (test_type_token(type, token,  EVENT_OP, ";"))
-			goto fail;
-		free_token(token);
-
-		if (read_expected(EVENT_ITEM, "offset") < 0)
-			goto fail_expect;
-
-		if (read_expected(EVENT_OP, ":") < 0)
-			goto fail_expect;
-
-		if (read_expect_type(EVENT_ITEM, &token))
-			goto fail;
-		field->offset = strtoul(token, NULL, 0);
-		free_token(token);
-
-		if (read_expected(EVENT_OP, ";") < 0)
-			goto fail_expect;
-
-		if (read_expected(EVENT_ITEM, "size") < 0)
-			goto fail_expect;
-
-		if (read_expected(EVENT_OP, ":") < 0)
-			goto fail_expect;
-
-		if (read_expect_type(EVENT_ITEM, &token))
-			goto fail;
-		field->size = strtoul(token, NULL, 0);
-		free_token(token);
-
-		if (read_expected(EVENT_OP, ";") < 0)
-			goto fail_expect;
-
-		type = read_token(&token);
-		if (type != EVENT_NEWLINE) {
-			/* newer versions of the kernel have a "signed" type */
-			if (test_type_token(type, token, EVENT_ITEM, "signed"))
-				goto fail;
-
-			free_token(token);
-
-			if (read_expected(EVENT_OP, ":") < 0)
-				goto fail_expect;
-
-			if (read_expect_type(EVENT_ITEM, &token))
-				goto fail;
-
-			if (strtoul(token, NULL, 0))
-				field->flags |= FIELD_IS_SIGNED;
-
-			free_token(token);
-			if (read_expected(EVENT_OP, ";") < 0)
-				goto fail_expect;
-
-			if (read_expect_type(EVENT_NEWLINE, &token))
-				goto fail;
-		}
-
-		free_token(token);
-
-		*fields = field;
-		fields = &field->next;
-
-	} while (1);
-
-	return 0;
-
-fail:
-	free_token(token);
-fail_expect:
-	if (field)
-		free(field);
-	return -1;
-}
-
-static int event_read_format(struct event *event)
-{
-	char *token;
-	int ret;
-
-	if (read_expected_item(EVENT_ITEM, "format") < 0)
-		return -1;
-
-	if (read_expected(EVENT_OP, ":") < 0)
-		return -1;
-
-	if (read_expect_type(EVENT_NEWLINE, &token))
-		goto fail;
-	free_token(token);
-
-	ret = event_read_fields(event, &event->format.common_fields);
-	if (ret < 0)
-		return ret;
-	event->format.nr_common = ret;
-
-	ret = event_read_fields(event, &event->format.fields);
-	if (ret < 0)
-		return ret;
-	event->format.nr_fields = ret;
-
-	return 0;
-
- fail:
-	free_token(token);
-	return -1;
-}
-
-enum event_type
-process_arg_token(struct event *event, struct print_arg *arg,
-		  char **tok, enum event_type type);
-
-static enum event_type
-process_arg(struct event *event, struct print_arg *arg, char **tok)
-{
-	enum event_type type;
-	char *token;
-
-	type = read_token(&token);
-	*tok = token;
-
-	return process_arg_token(event, arg, tok, type);
-}
-
-static enum event_type
-process_cond(struct event *event, struct print_arg *top, char **tok)
-{
-	struct print_arg *arg, *left, *right;
-	enum event_type type;
-	char *token = NULL;
-
-	arg = malloc_or_die(sizeof(*arg));
-	memset(arg, 0, sizeof(*arg));
-
-	left = malloc_or_die(sizeof(*left));
-
-	right = malloc_or_die(sizeof(*right));
-
-	arg->type = PRINT_OP;
-	arg->op.left = left;
-	arg->op.right = right;
-
-	*tok = NULL;
-	type = process_arg(event, left, &token);
-	if (test_type_token(type, token, EVENT_OP, ":"))
-		goto out_free;
-
-	arg->op.op = token;
-
-	type = process_arg(event, right, &token);
-
-	top->op.right = arg;
-
-	*tok = token;
-	return type;
-
-out_free:
-	free_token(*tok);
-	free(right);
-	free(left);
-	free_arg(arg);
-	return EVENT_ERROR;
-}
-
-static enum event_type
-process_array(struct event *event, struct print_arg *top, char **tok)
-{
-	struct print_arg *arg;
-	enum event_type type;
-	char *token = NULL;
-
-	arg = malloc_or_die(sizeof(*arg));
-	memset(arg, 0, sizeof(*arg));
-
-	*tok = NULL;
-	type = process_arg(event, arg, &token);
-	if (test_type_token(type, token, EVENT_OP, "]"))
-		goto out_free;
-
-	top->op.right = arg;
-
-	free_token(token);
-	type = read_token_item(&token);
-	*tok = token;
-
-	return type;
-
-out_free:
-	free_token(*tok);
-	free_arg(arg);
-	return EVENT_ERROR;
-}
-
-static int get_op_prio(char *op)
-{
-	if (!op[1]) {
-		switch (op[0]) {
-		case '*':
-		case '/':
-		case '%':
-			return 6;
-		case '+':
-		case '-':
-			return 7;
-			/* '>>' and '<<' are 8 */
-		case '<':
-		case '>':
-			return 9;
-			/* '==' and '!=' are 10 */
-		case '&':
-			return 11;
-		case '^':
-			return 12;
-		case '|':
-			return 13;
-		case '?':
-			return 16;
-		default:
-			die("unknown op '%c'", op[0]);
-			return -1;
-		}
-	} else {
-		if (strcmp(op, "++") == 0 ||
-		    strcmp(op, "--") == 0) {
-			return 3;
-		} else if (strcmp(op, ">>") == 0 ||
-			   strcmp(op, "<<") == 0) {
-			return 8;
-		} else if (strcmp(op, ">=") == 0 ||
-			   strcmp(op, "<=") == 0) {
-			return 9;
-		} else if (strcmp(op, "==") == 0 ||
-			   strcmp(op, "!=") == 0) {
-			return 10;
-		} else if (strcmp(op, "&&") == 0) {
-			return 14;
-		} else if (strcmp(op, "||") == 0) {
-			return 15;
-		} else {
-			die("unknown op '%s'", op);
-			return -1;
-		}
-	}
-}
-
-static void set_op_prio(struct print_arg *arg)
-{
-
-	/* single ops are the greatest */
-	if (!arg->op.left || arg->op.left->type == PRINT_NULL) {
-		arg->op.prio = 0;
-		return;
-	}
-
-	arg->op.prio = get_op_prio(arg->op.op);
-}
-
-static enum event_type
-process_op(struct event *event, struct print_arg *arg, char **tok)
-{
-	struct print_arg *left, *right = NULL;
-	enum event_type type;
-	char *token;
-
-	/* the op is passed in via tok */
-	token = *tok;
-
-	if (arg->type == PRINT_OP && !arg->op.left) {
-		/* handle single op */
-		if (token[1]) {
-			die("bad op token %s", token);
-			return EVENT_ERROR;
-		}
-		switch (token[0]) {
-		case '!':
-		case '+':
-		case '-':
-			break;
-		default:
-			die("bad op token %s", token);
-			return EVENT_ERROR;
-		}
-
-		/* make an empty left */
-		left = malloc_or_die(sizeof(*left));
-		left->type = PRINT_NULL;
-		arg->op.left = left;
-
-		right = malloc_or_die(sizeof(*right));
-		arg->op.right = right;
-
-		type = process_arg(event, right, tok);
-
-	} else if (strcmp(token, "?") == 0) {
-
-		left = malloc_or_die(sizeof(*left));
-		/* copy the top arg to the left */
-		*left = *arg;
-
-		arg->type = PRINT_OP;
-		arg->op.op = token;
-		arg->op.left = left;
-		arg->op.prio = 0;
-
-		type = process_cond(event, arg, tok);
-
-	} else if (strcmp(token, ">>") == 0 ||
-		   strcmp(token, "<<") == 0 ||
-		   strcmp(token, "&") == 0 ||
-		   strcmp(token, "|") == 0 ||
-		   strcmp(token, "&&") == 0 ||
-		   strcmp(token, "||") == 0 ||
-		   strcmp(token, "-") == 0 ||
-		   strcmp(token, "+") == 0 ||
-		   strcmp(token, "*") == 0 ||
-		   strcmp(token, "^") == 0 ||
-		   strcmp(token, "/") == 0 ||
-		   strcmp(token, "<") == 0 ||
-		   strcmp(token, ">") == 0 ||
-		   strcmp(token, "==") == 0 ||
-		   strcmp(token, "!=") == 0) {
-
-		left = malloc_or_die(sizeof(*left));
-
-		/* copy the top arg to the left */
-		*left = *arg;
-
-		arg->type = PRINT_OP;
-		arg->op.op = token;
-		arg->op.left = left;
-
-		set_op_prio(arg);
-
-		right = malloc_or_die(sizeof(*right));
-
-		type = read_token_item(&token);
-		*tok = token;
-
-		/* could just be a type pointer */
-		if ((strcmp(arg->op.op, "*") == 0) &&
-		    type == EVENT_DELIM && (strcmp(token, ")") == 0)) {
-			if (left->type != PRINT_ATOM)
-				die("bad pointer type");
-			left->atom.atom = realloc(left->atom.atom,
-					    sizeof(left->atom.atom) + 3);
-			strcat(left->atom.atom, " *");
-			*arg = *left;
-			free(arg);
-
-			return type;
-		}
-
-		type = process_arg_token(event, right, tok, type);
-
-		arg->op.right = right;
-
-	} else if (strcmp(token, "[") == 0) {
-
-		left = malloc_or_die(sizeof(*left));
-		*left = *arg;
-
-		arg->type = PRINT_OP;
-		arg->op.op = token;
-		arg->op.left = left;
-
-		arg->op.prio = 0;
-		type = process_array(event, arg, tok);
-
-	} else {
-		warning("unknown op '%s'", token);
-		event->flags |= EVENT_FL_FAILED;
-		/* the arg is now the left side */
-		return EVENT_NONE;
-	}
-
-	if (type == EVENT_OP) {
-		int prio;
-
-		/* higher prios need to be closer to the root */
-		prio = get_op_prio(*tok);
-
-		if (prio > arg->op.prio)
-			return process_op(event, arg, tok);
-
-		return process_op(event, right, tok);
-	}
-
-	return type;
-}
-
-static enum event_type
-process_entry(struct event *event __unused, struct print_arg *arg,
-	      char **tok)
-{
-	enum event_type type;
-	char *field;
-	char *token;
-
-	if (read_expected(EVENT_OP, "->") < 0)
-		return EVENT_ERROR;
-
-	if (read_expect_type(EVENT_ITEM, &token) < 0)
-		goto fail;
-	field = token;
-
-	arg->type = PRINT_FIELD;
-	arg->field.name = field;
-
-	if (is_flag_field) {
-		arg->field.field = find_any_field(event, arg->field.name);
-		arg->field.field->flags |= FIELD_IS_FLAG;
-		is_flag_field = 0;
-	} else if (is_symbolic_field) {
-		arg->field.field = find_any_field(event, arg->field.name);
-		arg->field.field->flags |= FIELD_IS_SYMBOLIC;
-		is_symbolic_field = 0;
-	}
-
-	type = read_token(&token);
-	*tok = token;
-
-	return type;
-
-fail:
-	free_token(token);
-	return EVENT_ERROR;
-}
-
-static char *arg_eval (struct print_arg *arg);
-
-static long long arg_num_eval(struct print_arg *arg)
-{
-	long long left, right;
-	long long val = 0;
-
-	switch (arg->type) {
-	case PRINT_ATOM:
-		val = strtoll(arg->atom.atom, NULL, 0);
-		break;
-	case PRINT_TYPE:
-		val = arg_num_eval(arg->typecast.item);
-		break;
-	case PRINT_OP:
-		switch (arg->op.op[0]) {
-		case '|':
-			left = arg_num_eval(arg->op.left);
-			right = arg_num_eval(arg->op.right);
-			if (arg->op.op[1])
-				val = left || right;
-			else
-				val = left | right;
-			break;
-		case '&':
-			left = arg_num_eval(arg->op.left);
-			right = arg_num_eval(arg->op.right);
-			if (arg->op.op[1])
-				val = left && right;
-			else
-				val = left & right;
-			break;
-		case '<':
-			left = arg_num_eval(arg->op.left);
-			right = arg_num_eval(arg->op.right);
-			switch (arg->op.op[1]) {
-			case 0:
-				val = left < right;
-				break;
-			case '<':
-				val = left << right;
-				break;
-			case '=':
-				val = left <= right;
-				break;
-			default:
-				die("unknown op '%s'", arg->op.op);
-			}
-			break;
-		case '>':
-			left = arg_num_eval(arg->op.left);
-			right = arg_num_eval(arg->op.right);
-			switch (arg->op.op[1]) {
-			case 0:
-				val = left > right;
-				break;
-			case '>':
-				val = left >> right;
-				break;
-			case '=':
-				val = left >= right;
-				break;
-			default:
-				die("unknown op '%s'", arg->op.op);
-			}
-			break;
-		case '=':
-			left = arg_num_eval(arg->op.left);
-			right = arg_num_eval(arg->op.right);
-
-			if (arg->op.op[1] != '=')
-				die("unknown op '%s'", arg->op.op);
-
-			val = left == right;
-			break;
-		case '!':
-			left = arg_num_eval(arg->op.left);
-			right = arg_num_eval(arg->op.right);
-
-			switch (arg->op.op[1]) {
-			case '=':
-				val = left != right;
-				break;
-			default:
-				die("unknown op '%s'", arg->op.op);
-			}
-			break;
-		default:
-			die("unknown op '%s'", arg->op.op);
-		}
-		break;
-
-	case PRINT_NULL:
-	case PRINT_FIELD ... PRINT_SYMBOL:
-	case PRINT_STRING:
-	default:
-		die("invalid eval type %d", arg->type);
-
-	}
-	return val;
-}
-
-static char *arg_eval (struct print_arg *arg)
-{
-	long long val;
-	static char buf[20];
-
-	switch (arg->type) {
-	case PRINT_ATOM:
-		return arg->atom.atom;
-	case PRINT_TYPE:
-		return arg_eval(arg->typecast.item);
-	case PRINT_OP:
-		val = arg_num_eval(arg);
-		sprintf(buf, "%lld", val);
-		return buf;
-
-	case PRINT_NULL:
-	case PRINT_FIELD ... PRINT_SYMBOL:
-	case PRINT_STRING:
-	default:
-		die("invalid eval type %d", arg->type);
-		break;
-	}
-
-	return NULL;
-}
-
-static enum event_type
-process_fields(struct event *event, struct print_flag_sym **list, char **tok)
-{
-	enum event_type type;
-	struct print_arg *arg = NULL;
-	struct print_flag_sym *field;
-	char *token = NULL;
-	char *value;
-
-	do {
-		free_token(token);
-		type = read_token_item(&token);
-		if (test_type_token(type, token, EVENT_OP, "{"))
-			break;
-
-		arg = malloc_or_die(sizeof(*arg));
-
-		free_token(token);
-		type = process_arg(event, arg, &token);
-		if (test_type_token(type, token, EVENT_DELIM, ","))
-			goto out_free;
-
-		field = malloc_or_die(sizeof(*field));
-		memset(field, 0, sizeof(*field));
-
-		value = arg_eval(arg);
-		field->value = strdup(value);
-
-		free_token(token);
-		type = process_arg(event, arg, &token);
-		if (test_type_token(type, token, EVENT_OP, "}"))
-			goto out_free;
-
-		value = arg_eval(arg);
-		field->str = strdup(value);
-		free_arg(arg);
-		arg = NULL;
-
-		*list = field;
-		list = &field->next;
-
-		free_token(token);
-		type = read_token_item(&token);
-	} while (type == EVENT_DELIM && strcmp(token, ",") == 0);
-
-	*tok = token;
-	return type;
-
-out_free:
-	free_arg(arg);
-	free_token(token);
-
-	return EVENT_ERROR;
-}
-
-static enum event_type
-process_flags(struct event *event, struct print_arg *arg, char **tok)
-{
-	struct print_arg *field;
-	enum event_type type;
-	char *token;
-
-	memset(arg, 0, sizeof(*arg));
-	arg->type = PRINT_FLAGS;
-
-	if (read_expected_item(EVENT_DELIM, "(") < 0)
-		return EVENT_ERROR;
-
-	field = malloc_or_die(sizeof(*field));
-
-	type = process_arg(event, field, &token);
-	if (test_type_token(type, token, EVENT_DELIM, ","))
-		goto out_free;
-
-	arg->flags.field = field;
-
-	type = read_token_item(&token);
-	if (event_item_type(type)) {
-		arg->flags.delim = token;
-		type = read_token_item(&token);
-	}
-
-	if (test_type_token(type, token, EVENT_DELIM, ","))
-		goto out_free;
-
-	type = process_fields(event, &arg->flags.flags, &token);
-	if (test_type_token(type, token, EVENT_DELIM, ")"))
-		goto out_free;
-
-	free_token(token);
-	type = read_token_item(tok);
-	return type;
-
-out_free:
-	free_token(token);
-	return EVENT_ERROR;
-}
-
-static enum event_type
-process_symbols(struct event *event, struct print_arg *arg, char **tok)
-{
-	struct print_arg *field;
-	enum event_type type;
-	char *token;
-
-	memset(arg, 0, sizeof(*arg));
-	arg->type = PRINT_SYMBOL;
-
-	if (read_expected_item(EVENT_DELIM, "(") < 0)
-		return EVENT_ERROR;
-
-	field = malloc_or_die(sizeof(*field));
-
-	type = process_arg(event, field, &token);
-	if (test_type_token(type, token, EVENT_DELIM, ","))
-		goto out_free;
-
-	arg->symbol.field = field;
-
-	type = process_fields(event, &arg->symbol.symbols, &token);
-	if (test_type_token(type, token, EVENT_DELIM, ")"))
-		goto out_free;
-
-	free_token(token);
-	type = read_token_item(tok);
-	return type;
-
-out_free:
-	free_token(token);
-	return EVENT_ERROR;
-}
-
-static enum event_type
-process_paren(struct event *event, struct print_arg *arg, char **tok)
-{
-	struct print_arg *item_arg;
-	enum event_type type;
-	char *token;
-
-	type = process_arg(event, arg, &token);
-
-	if (type == EVENT_ERROR)
-		return EVENT_ERROR;
-
-	if (type == EVENT_OP)
-		type = process_op(event, arg, &token);
-
-	if (type == EVENT_ERROR)
-		return EVENT_ERROR;
-
-	if (test_type_token(type, token, EVENT_DELIM, ")")) {
-		free_token(token);
-		return EVENT_ERROR;
-	}
-
-	free_token(token);
-	type = read_token_item(&token);
-
-	/*
-	 * If the next token is an item or another open paren, then
-	 * this was a typecast.
-	 */
-	if (event_item_type(type) ||
-	    (type == EVENT_DELIM && strcmp(token, "(") == 0)) {
-
-		/* make this a typecast and contine */
-
-		/* prevous must be an atom */
-		if (arg->type != PRINT_ATOM)
-			die("previous needed to be PRINT_ATOM");
-
-		item_arg = malloc_or_die(sizeof(*item_arg));
-
-		arg->type = PRINT_TYPE;
-		arg->typecast.type = arg->atom.atom;
-		arg->typecast.item = item_arg;
-		type = process_arg_token(event, item_arg, &token, type);
-
-	}
-
-	*tok = token;
-	return type;
-}
-
-
-static enum event_type
-process_str(struct event *event __unused, struct print_arg *arg, char **tok)
-{
-	enum event_type type;
-	char *token;
-
-	if (read_expected(EVENT_DELIM, "(") < 0)
-		return EVENT_ERROR;
-
-	if (read_expect_type(EVENT_ITEM, &token) < 0)
-		goto fail;
-
-	arg->type = PRINT_STRING;
-	arg->string.string = token;
-	arg->string.offset = -1;
-
-	if (read_expected(EVENT_DELIM, ")") < 0)
-		return EVENT_ERROR;
-
-	type = read_token(&token);
-	*tok = token;
-
-	return type;
-fail:
-	free_token(token);
-	return EVENT_ERROR;
-}
-
-enum event_type
-process_arg_token(struct event *event, struct print_arg *arg,
-		  char **tok, enum event_type type)
-{
-	char *token;
-	char *atom;
-
-	token = *tok;
-
-	switch (type) {
-	case EVENT_ITEM:
-		if (strcmp(token, "REC") == 0) {
-			free_token(token);
-			type = process_entry(event, arg, &token);
-		} else if (strcmp(token, "__print_flags") == 0) {
-			free_token(token);
-			is_flag_field = 1;
-			type = process_flags(event, arg, &token);
-		} else if (strcmp(token, "__print_symbolic") == 0) {
-			free_token(token);
-			is_symbolic_field = 1;
-			type = process_symbols(event, arg, &token);
-		} else if (strcmp(token, "__get_str") == 0) {
-			free_token(token);
-			type = process_str(event, arg, &token);
-		} else {
-			atom = token;
-			/* test the next token */
-			type = read_token_item(&token);
-
-			/* atoms can be more than one token long */
-			while (type == EVENT_ITEM) {
-				atom = realloc(atom, strlen(atom) + strlen(token) + 2);
-				strcat(atom, " ");
-				strcat(atom, token);
-				free_token(token);
-				type = read_token_item(&token);
-			}
-
-			/* todo, test for function */
-
-			arg->type = PRINT_ATOM;
-			arg->atom.atom = atom;
-		}
-		break;
-	case EVENT_DQUOTE:
-	case EVENT_SQUOTE:
-		arg->type = PRINT_ATOM;
-		arg->atom.atom = token;
-		type = read_token_item(&token);
-		break;
-	case EVENT_DELIM:
-		if (strcmp(token, "(") == 0) {
-			free_token(token);
-			type = process_paren(event, arg, &token);
-			break;
-		}
-	case EVENT_OP:
-		/* handle single ops */
-		arg->type = PRINT_OP;
-		arg->op.op = token;
-		arg->op.left = NULL;
-		type = process_op(event, arg, &token);
-
-		break;
-
-	case EVENT_ERROR ... EVENT_NEWLINE:
-	default:
-		die("unexpected type %d", type);
-	}
-	*tok = token;
-
-	return type;
-}
-
-static int event_read_print_args(struct event *event, struct print_arg **list)
-{
-	enum event_type type = EVENT_ERROR;
-	struct print_arg *arg;
-	char *token;
-	int args = 0;
-
-	do {
-		if (type == EVENT_NEWLINE) {
-			free_token(token);
-			type = read_token_item(&token);
-			continue;
-		}
-
-		arg = malloc_or_die(sizeof(*arg));
-		memset(arg, 0, sizeof(*arg));
-
-		type = process_arg(event, arg, &token);
-
-		if (type == EVENT_ERROR) {
-			free_arg(arg);
-			return -1;
-		}
-
-		*list = arg;
-		args++;
-
-		if (type == EVENT_OP) {
-			type = process_op(event, arg, &token);
-			list = &arg->next;
-			continue;
-		}
-
-		if (type == EVENT_DELIM && strcmp(token, ",") == 0) {
-			free_token(token);
-			*list = arg;
-			list = &arg->next;
-			continue;
-		}
-		break;
-	} while (type != EVENT_NONE);
-
-	if (type != EVENT_NONE)
-		free_token(token);
-
-	return args;
-}
-
-static int event_read_print(struct event *event)
-{
-	enum event_type type;
-	char *token;
-	int ret;
-
-	if (read_expected_item(EVENT_ITEM, "print") < 0)
-		return -1;
-
-	if (read_expected(EVENT_ITEM, "fmt") < 0)
-		return -1;
-
-	if (read_expected(EVENT_OP, ":") < 0)
-		return -1;
-
-	if (read_expect_type(EVENT_DQUOTE, &token) < 0)
-		goto fail;
-
- concat:
-	event->print_fmt.format = token;
-	event->print_fmt.args = NULL;
-
-	/* ok to have no arg */
-	type = read_token_item(&token);
-
-	if (type == EVENT_NONE)
-		return 0;
-
-	/* Handle concatination of print lines */
-	if (type == EVENT_DQUOTE) {
-		char *cat;
-
-		cat = malloc_or_die(strlen(event->print_fmt.format) +
-				    strlen(token) + 1);
-		strcpy(cat, event->print_fmt.format);
-		strcat(cat, token);
-		free_token(token);
-		free_token(event->print_fmt.format);
-		event->print_fmt.format = NULL;
-		token = cat;
-		goto concat;
-	}
-
-	if (test_type_token(type, token, EVENT_DELIM, ","))
-		goto fail;
-
-	free_token(token);
-
-	ret = event_read_print_args(event, &event->print_fmt.args);
-	if (ret < 0)
-		return -1;
-
-	return ret;
-
- fail:
-	free_token(token);
-	return -1;
-}
-
-static struct format_field *
-find_common_field(struct event *event, const char *name)
-{
-	struct format_field *format;
-
-	for (format = event->format.common_fields;
-	     format; format = format->next) {
-		if (strcmp(format->name, name) == 0)
-			break;
-	}
-
-	return format;
-}
-
-static struct format_field *
-find_field(struct event *event, const char *name)
-{
-	struct format_field *format;
-
-	for (format = event->format.fields;
-	     format; format = format->next) {
-		if (strcmp(format->name, name) == 0)
-			break;
-	}
-
-	return format;
-}
-
-static struct format_field *
-find_any_field(struct event *event, const char *name)
-{
-	struct format_field *format;
-
-	format = find_common_field(event, name);
-	if (format)
-		return format;
-	return find_field(event, name);
-}
-
-unsigned long long read_size(void *ptr, int size)
-{
-	switch (size) {
-	case 1:
-		return *(unsigned char *)ptr;
-	case 2:
-		return data2host2(ptr);
-	case 4:
-		return data2host4(ptr);
-	case 8:
-		return data2host8(ptr);
-	default:
-		/* BUG! */
-		return 0;
-	}
-}
-
-unsigned long long
-raw_field_value(struct event *event, const char *name, void *data)
-{
-	struct format_field *field;
-
-	field = find_any_field(event, name);
-	if (!field)
-		return 0ULL;
-
-	return read_size(data + field->offset, field->size);
-}
-
-void *raw_field_ptr(struct event *event, const char *name, void *data)
-{
-	struct format_field *field;
-
-	field = 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;
-}
-
-static int get_common_info(const char *type, int *offset, int *size)
-{
-	struct event *event;
-	struct format_field *field;
-
-	/*
-	 * All events should have the same common elements.
-	 * Pick any event to find where the type is;
-	 */
-	if (!event_list)
-		die("no event_list!");
-
-	event = event_list;
-	field = find_common_field(event, type);
-	if (!field)
-		die("field '%s' not found", type);
-
-	*offset = field->offset;
-	*size = field->size;
-
-	return 0;
-}
-
-static int __parse_common(void *data, int *size, int *offset,
-			  const char *name)
-{
-	int ret;
-
-	if (!*size) {
-		ret = get_common_info(name, offset, size);
-		if (ret < 0)
-			return ret;
-	}
-	return read_size(data + *offset, *size);
-}
-
-int trace_parse_common_type(void *data)
-{
-	static int type_offset;
-	static int type_size;
-
-	return __parse_common(data, &type_size, &type_offset,
-			      "common_type");
-}
-
-int trace_parse_common_pid(void *data)
-{
-	static int pid_offset;
-	static int pid_size;
-
-	return __parse_common(data, &pid_size, &pid_offset,
-			      "common_pid");
-}
-
-int parse_common_pc(void *data)
-{
-	static int pc_offset;
-	static int pc_size;
-
-	return __parse_common(data, &pc_size, &pc_offset,
-			      "common_preempt_count");
-}
-
-int parse_common_flags(void *data)
-{
-	static int flags_offset;
-	static int flags_size;
-
-	return __parse_common(data, &flags_size, &flags_offset,
-			      "common_flags");
-}
-
-int parse_common_lock_depth(void *data)
-{
-	static int ld_offset;
-	static int ld_size;
-	int ret;
-
-	ret = __parse_common(data, &ld_size, &ld_offset,
-			     "common_lock_depth");
-	if (ret < 0)
-		return -1;
-
-	return ret;
-}
-
-struct event *trace_find_event(int id)
-{
-	struct event *event;
-
-	for (event = event_list; event; event = event->next) {
-		if (event->id == id)
-			break;
-	}
-	return event;
-}
-
-struct event *trace_find_next_event(struct event *event)
-{
-	if (!event)
-		return event_list;
-
-	return event->next;
-}
-
-static unsigned long long eval_num_arg(void *data, int size,
-				   struct event *event, struct print_arg *arg)
-{
-	unsigned long long val = 0;
-	unsigned long long left, right;
-	struct print_arg *larg;
-
-	switch (arg->type) {
-	case PRINT_NULL:
-		/* ?? */
-		return 0;
-	case PRINT_ATOM:
-		return strtoull(arg->atom.atom, NULL, 0);
-	case PRINT_FIELD:
-		if (!arg->field.field) {
-			arg->field.field = find_any_field(event, arg->field.name);
-			if (!arg->field.field)
-				die("field %s not found", arg->field.name);
-		}
-		/* must be a number */
-		val = read_size(data + arg->field.field->offset,
-				arg->field.field->size);
-		break;
-	case PRINT_FLAGS:
-	case PRINT_SYMBOL:
-		break;
-	case PRINT_TYPE:
-		return eval_num_arg(data, size, event, arg->typecast.item);
-	case PRINT_STRING:
-		return 0;
-		break;
-	case PRINT_OP:
-		if (strcmp(arg->op.op, "[") == 0) {
-			/*
-			 * Arrays are special, since we don't want
-			 * to read the arg as is.
-			 */
-			if (arg->op.left->type != PRINT_FIELD)
-				goto default_op; /* oops, all bets off */
-			larg = arg->op.left;
-			if (!larg->field.field) {
-				larg->field.field =
-					find_any_field(event, larg->field.name);
-				if (!larg->field.field)
-					die("field %s not found", larg->field.name);
-			}
-			right = eval_num_arg(data, size, event, arg->op.right);
-			val = read_size(data + larg->field.field->offset +
-					right * long_size, long_size);
-			break;
-		}
- default_op:
-		left = eval_num_arg(data, size, event, arg->op.left);
-		right = eval_num_arg(data, size, event, arg->op.right);
-		switch (arg->op.op[0]) {
-		case '|':
-			if (arg->op.op[1])
-				val = left || right;
-			else
-				val = left | right;
-			break;
-		case '&':
-			if (arg->op.op[1])
-				val = left && right;
-			else
-				val = left & right;
-			break;
-		case '<':
-			switch (arg->op.op[1]) {
-			case 0:
-				val = left < right;
-				break;
-			case '<':
-				val = left << right;
-				break;
-			case '=':
-				val = left <= right;
-				break;
-			default:
-				die("unknown op '%s'", arg->op.op);
-			}
-			break;
-		case '>':
-			switch (arg->op.op[1]) {
-			case 0:
-				val = left > right;
-				break;
-			case '>':
-				val = left >> right;
-				break;
-			case '=':
-				val = left >= right;
-				break;
-			default:
-				die("unknown op '%s'", arg->op.op);
-			}
-			break;
-		case '=':
-			if (arg->op.op[1] != '=')
-				die("unknown op '%s'", arg->op.op);
-			val = left == right;
-			break;
-		case '-':
-			val = left - right;
-			break;
-		case '+':
-			val = left + right;
-			break;
-		default:
-			die("unknown op '%s'", arg->op.op);
-		}
-		break;
-	default: /* not sure what to do there */
-		return 0;
-	}
-	return val;
-}
-
-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;
-}
-
-static void print_str_arg(void *data, int size,
-			  struct event *event, struct print_arg *arg)
-{
-	struct print_flag_sym *flag;
-	unsigned long long val, fval;
-	char *str;
-	int print;
-
-	switch (arg->type) {
-	case PRINT_NULL:
-		/* ?? */
-		return;
-	case PRINT_ATOM:
-		printf("%s", arg->atom.atom);
-		return;
-	case PRINT_FIELD:
-		if (!arg->field.field) {
-			arg->field.field = find_any_field(event, arg->field.name);
-			if (!arg->field.field)
-				die("field %s not found", arg->field.name);
-		}
-		str = malloc_or_die(arg->field.field->size + 1);
-		memcpy(str, data + arg->field.field->offset,
-		       arg->field.field->size);
-		str[arg->field.field->size] = 0;
-		printf("%s", str);
-		free(str);
-		break;
-	case PRINT_FLAGS:
-		val = eval_num_arg(data, size, event, arg->flags.field);
-		print = 0;
-		for (flag = arg->flags.flags; flag; flag = flag->next) {
-			fval = eval_flag(flag->value);
-			if (!val && !fval) {
-				printf("%s", flag->str);
-				break;
-			}
-			if (fval && (val & fval) == fval) {
-				if (print && arg->flags.delim)
-					printf("%s", arg->flags.delim);
-				printf("%s", flag->str);
-				print = 1;
-				val &= ~fval;
-			}
-		}
-		break;
-	case PRINT_SYMBOL:
-		val = eval_num_arg(data, size, event, arg->symbol.field);
-		for (flag = arg->symbol.symbols; flag; flag = flag->next) {
-			fval = eval_flag(flag->value);
-			if (val == fval) {
-				printf("%s", flag->str);
-				break;
-			}
-		}
-		break;
-
-	case PRINT_TYPE:
-		break;
-	case PRINT_STRING: {
-		int str_offset;
-
-		if (arg->string.offset == -1) {
-			struct format_field *f;
-
-			f = find_any_field(event, arg->string.string);
-			arg->string.offset = f->offset;
-		}
-		str_offset = *(int *)(data + arg->string.offset);
-		str_offset &= 0xffff;
-		printf("%s", ((char *)data) + str_offset);
-		break;
-	}
-	case PRINT_OP:
-		/*
-		 * The only op for string should be ? :
-		 */
-		if (arg->op.op[0] != '?')
-			return;
-		val = eval_num_arg(data, size, event, arg->op.left);
-		if (val)
-			print_str_arg(data, size, event, arg->op.right->op.left);
-		else
-			print_str_arg(data, size, event, arg->op.right->op.right);
-		break;
-	default:
-		/* well... */
-		break;
-	}
-}
-
-static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event)
-{
-	static struct format_field *field, *ip_field;
-	struct print_arg *args, *arg, **next;
-	unsigned long long ip, val;
-	char *ptr;
-	void *bptr;
-
-	if (!field) {
-		field = find_field(event, "buf");
-		if (!field)
-			die("can't find buffer field for binary printk");
-		ip_field = find_field(event, "ip");
-		if (!ip_field)
-			die("can't find ip field for binary printk");
-	}
-
-	ip = read_size(data + ip_field->offset, ip_field->size);
-
-	/*
-	 * The first arg is the IP pointer.
-	 */
-	args = malloc_or_die(sizeof(*args));
-	arg = args;
-	arg->next = NULL;
-	next = &arg->next;
-
-	arg->type = PRINT_ATOM;
-	arg->atom.atom = malloc_or_die(32);
-	sprintf(arg->atom.atom, "%lld", ip);
-
-	/* skip the first "%pf : " */
-	for (ptr = fmt + 6, bptr = data + field->offset;
-	     bptr < data + size && *ptr; ptr++) {
-		int ls = 0;
-
-		if (*ptr == '%') {
- process_again:
-			ptr++;
-			switch (*ptr) {
-			case '%':
-				break;
-			case 'l':
-				ls++;
-				goto process_again;
-			case 'L':
-				ls = 2;
-				goto process_again;
-			case '0' ... '9':
-				goto process_again;
-			case 'p':
-				ls = 1;
-				/* fall through */
-			case 'd':
-			case 'u':
-			case 'x':
-			case 'i':
-				/* the pointers are always 4 bytes aligned */
-				bptr = (void *)(((unsigned long)bptr + 3) &
-						~3);
-				switch (ls) {
-				case 0:
-				case 1:
-					ls = long_size;
-					break;
-				case 2:
-					ls = 8;
-				default:
-					break;
-				}
-				val = read_size(bptr, ls);
-				bptr += ls;
-				arg = malloc_or_die(sizeof(*arg));
-				arg->next = NULL;
-				arg->type = PRINT_ATOM;
-				arg->atom.atom = malloc_or_die(32);
-				sprintf(arg->atom.atom, "%lld", val);
-				*next = arg;
-				next = &arg->next;
-				break;
-			case 's':
-				arg = malloc_or_die(sizeof(*arg));
-				arg->next = NULL;
-				arg->type = PRINT_STRING;
-				arg->string.string = strdup(bptr);
-				bptr += strlen(bptr) + 1;
-				*next = arg;
-				next = &arg->next;
-			default:
-				break;
-			}
-		}
-	}
-
-	return args;
-}
-
-static void free_args(struct print_arg *args)
-{
-	struct print_arg *next;
-
-	while (args) {
-		next = args->next;
-
-		if (args->type == PRINT_ATOM)
-			free(args->atom.atom);
-		else
-			free(args->string.string);
-		free(args);
-		args = next;
-	}
-}
-
-static char *get_bprint_format(void *data, int size __unused, struct event *event)
-{
-	unsigned long long addr;
-	static struct format_field *field;
-	struct printk_map *printk;
-	char *format;
-	char *p;
-
-	if (!field) {
-		field = find_field(event, "fmt");
-		if (!field)
-			die("can't find format field for binary printk");
-		printf("field->offset = %d size=%d\n", field->offset, field->size);
-	}
-
-	addr = read_size(data + field->offset, field->size);
-
-	printk = find_printk(addr);
-	if (!printk) {
-		format = malloc_or_die(45);
-		sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n",
-			addr);
-		return format;
-	}
-
-	p = printk->printk;
-	/* Remove any quotes. */
-	if (*p == '"')
-		p++;
-	format = malloc_or_die(strlen(p) + 10);
-	sprintf(format, "%s : %s", "%pf", p);
-	/* remove ending quotes and new line since we will add one too */
-	p = format + strlen(format) - 1;
-	if (*p == '"')
-		*p = 0;
-
-	p -= 2;
-	if (strcmp(p, "\\n") == 0)
-		*p = 0;
-
-	return format;
-}
-
-static void pretty_print(void *data, int size, struct event *event)
-{
-	struct print_fmt *print_fmt = &event->print_fmt;
-	struct print_arg *arg = print_fmt->args;
-	struct print_arg *args = NULL;
-	const char *ptr = print_fmt->format;
-	unsigned long long val;
-	struct func_map *func;
-	const char *saveptr;
-	char *bprint_fmt = NULL;
-	char format[32];
-	int show_func;
-	int len;
-	int ls;
-
-	if (event->flags & EVENT_FL_ISFUNC)
-		ptr = " %pF <-- %pF";
-
-	if (event->flags & EVENT_FL_ISBPRINT) {
-		bprint_fmt = get_bprint_format(data, size, event);
-		args = make_bprint_args(bprint_fmt, data, size, event);
-		arg = args;
-		ptr = bprint_fmt;
-	}
-
-	for (; *ptr; ptr++) {
-		ls = 0;
-		if (*ptr == '\\') {
-			ptr++;
-			switch (*ptr) {
-			case 'n':
-				printf("\n");
-				break;
-			case 't':
-				printf("\t");
-				break;
-			case 'r':
-				printf("\r");
-				break;
-			case '\\':
-				printf("\\");
-				break;
-			default:
-				printf("%c", *ptr);
-				break;
-			}
-
-		} else if (*ptr == '%') {
-			saveptr = ptr;
-			show_func = 0;
- cont_process:
-			ptr++;
-			switch (*ptr) {
-			case '%':
-				printf("%%");
-				break;
-			case 'l':
-				ls++;
-				goto cont_process;
-			case 'L':
-				ls = 2;
-				goto cont_process;
-			case 'z':
-			case 'Z':
-			case '0' ... '9':
-				goto cont_process;
-			case 'p':
-				if (long_size == 4)
-					ls = 1;
-				else
-					ls = 2;
-
-				if (*(ptr+1) == 'F' ||
-				    *(ptr+1) == 'f') {
-					ptr++;
-					show_func = *ptr;
-				}
-
-				/* fall through */
-			case 'd':
-			case 'i':
-			case 'x':
-			case 'X':
-			case 'u':
-				if (!arg)
-					die("no argument match");
-
-				len = ((unsigned long)ptr + 1) -
-					(unsigned long)saveptr;
-
-				/* should never happen */
-				if (len > 32)
-					die("bad format!");
-
-				memcpy(format, saveptr, len);
-				format[len] = 0;
-
-				val = eval_num_arg(data, size, event, arg);
-				arg = arg->next;
-
-				if (show_func) {
-					func = find_func(val);
-					if (func) {
-						printf("%s", func->func);
-						if (show_func == 'F')
-							printf("+0x%llx",
-							       val - func->addr);
-						break;
-					}
-				}
-				switch (ls) {
-				case 0:
-					printf(format, (int)val);
-					break;
-				case 1:
-					printf(format, (long)val);
-					break;
-				case 2:
-					printf(format, (long long)val);
-					break;
-				default:
-					die("bad count (%d)", ls);
-				}
-				break;
-			case 's':
-				if (!arg)
-					die("no matching argument");
-
-				print_str_arg(data, size, event, arg);
-				arg = arg->next;
-				break;
-			default:
-				printf(">%c<", *ptr);
-
-			}
-		} else
-			printf("%c", *ptr);
-	}
-
-	if (args) {
-		free_args(args);
-		free(bprint_fmt);
-	}
-}
-
-static inline int log10_cpu(int nb)
-{
-	if (nb / 100)
-		return 3;
-	if (nb / 10)
-		return 2;
-	return 1;
-}
-
-static void print_lat_fmt(void *data, int size __unused)
-{
-	unsigned int lat_flags;
-	unsigned int pc;
-	int lock_depth;
-	int hardirq;
-	int softirq;
-
-	lat_flags = parse_common_flags(data);
-	pc = parse_common_pc(data);
-	lock_depth = parse_common_lock_depth(data);
-
-	hardirq = lat_flags & TRACE_FLAG_HARDIRQ;
-	softirq = lat_flags & TRACE_FLAG_SOFTIRQ;
-
-	printf("%c%c%c",
-	       (lat_flags & TRACE_FLAG_IRQS_OFF) ? 'd' :
-	       (lat_flags & TRACE_FLAG_IRQS_NOSUPPORT) ?
-	       'X' : '.',
-	       (lat_flags & TRACE_FLAG_NEED_RESCHED) ?
-	       'N' : '.',
-	       (hardirq && softirq) ? 'H' :
-	       hardirq ? 'h' : softirq ? 's' : '.');
-
-	if (pc)
-		printf("%x", pc);
-	else
-		printf(".");
-
-	if (lock_depth < 0)
-		printf(".");
-	else
-		printf("%d", lock_depth);
-}
-
-/* taken from Linux, written by Frederic Weisbecker */
-static void print_graph_cpu(int cpu)
-{
-	int i;
-	int log10_this = log10_cpu(cpu);
-	int log10_all = log10_cpu(cpus);
-
-
-	/*
-	 * Start with a space character - to make it stand out
-	 * to the right a bit when trace output is pasted into
-	 * email:
-	 */
-	printf(" ");
-
-	/*
-	 * Tricky - we space the CPU field according to the max
-	 * number of online CPUs. On a 2-cpu system it would take
-	 * a maximum of 1 digit - on a 128 cpu system it would
-	 * take up to 3 digits:
-	 */
-	for (i = 0; i < log10_all - log10_this; i++)
-		printf(" ");
-
-	printf("%d) ", cpu);
-}
-
-#define TRACE_GRAPH_PROCINFO_LENGTH	14
-#define TRACE_GRAPH_INDENT	2
-
-static void print_graph_proc(int pid, const char *comm)
-{
-	/* sign + log10(MAX_INT) + '\0' */
-	char pid_str[11];
-	int spaces = 0;
-	int len;
-	int i;
-
-	sprintf(pid_str, "%d", pid);
-
-	/* 1 stands for the "-" character */
-	len = strlen(comm) + strlen(pid_str) + 1;
-
-	if (len < TRACE_GRAPH_PROCINFO_LENGTH)
-		spaces = TRACE_GRAPH_PROCINFO_LENGTH - len;
-
-	/* First spaces to align center */
-	for (i = 0; i < spaces / 2; i++)
-		printf(" ");
-
-	printf("%s-%s", comm, pid_str);
-
-	/* Last spaces to align center */
-	for (i = 0; i < spaces - (spaces / 2); i++)
-		printf(" ");
-}
-
-static struct record *
-get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func,
-		    struct record *next)
-{
-	struct format_field *field;
-	struct event *event;
-	unsigned long val;
-	int type;
-	int pid;
-
-	type = trace_parse_common_type(next->data);
-	event = trace_find_event(type);
-	if (!event)
-		return NULL;
-
-	if (!(event->flags & EVENT_FL_ISFUNCRET))
-		return NULL;
-
-	pid = trace_parse_common_pid(next->data);
-	field = find_field(event, "func");
-	if (!field)
-		die("function return does not have field func");
-
-	val = read_size(next->data + field->offset, field->size);
-
-	if (cur_pid != pid || cur_func != val)
-		return NULL;
-
-	/* this is a leaf, now advance the iterator */
-	return trace_read_data(cpu);
-}
-
-/* Signal a overhead of time execution to the output */
-static void print_graph_overhead(unsigned long long duration)
-{
-	/* Non nested entry or return */
-	if (duration == ~0ULL)
-		return (void)printf("  ");
-
-	/* Duration exceeded 100 msecs */
-	if (duration > 100000ULL)
-		return (void)printf("! ");
-
-	/* Duration exceeded 10 msecs */
-	if (duration > 10000ULL)
-		return (void)printf("+ ");
-
-	printf("  ");
-}
-
-static void print_graph_duration(unsigned long long duration)
-{
-	unsigned long usecs = duration / 1000;
-	unsigned long nsecs_rem = duration % 1000;
-	/* log10(ULONG_MAX) + '\0' */
-	char msecs_str[21];
-	char nsecs_str[5];
-	int len;
-	int i;
-
-	sprintf(msecs_str, "%lu", usecs);
-
-	/* Print msecs */
-	len = printf("%lu", usecs);
-
-	/* Print nsecs (we don't want to exceed 7 numbers) */
-	if (len < 7) {
-		snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem);
-		len += printf(".%s", nsecs_str);
-	}
-
-	printf(" us ");
-
-	/* Print remaining spaces to fit the row's width */
-	for (i = len; i < 7; i++)
-		printf(" ");
-
-	printf("|  ");
-}
-
-static void
-print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec)
-{
-	unsigned long long rettime, calltime;
-	unsigned long long duration, depth;
-	unsigned long long val;
-	struct format_field *field;
-	struct func_map *func;
-	struct event *ret_event;
-	int type;
-	int i;
-
-	type = trace_parse_common_type(ret_rec->data);
-	ret_event = trace_find_event(type);
-
-	field = find_field(ret_event, "rettime");
-	if (!field)
-		die("can't find rettime in return graph");
-	rettime = read_size(ret_rec->data + field->offset, field->size);
-
-	field = find_field(ret_event, "calltime");
-	if (!field)
-		die("can't find rettime in return graph");
-	calltime = read_size(ret_rec->data + field->offset, field->size);
-
-	duration = rettime - calltime;
-
-	/* Overhead */
-	print_graph_overhead(duration);
-
-	/* Duration */
-	print_graph_duration(duration);
-
-	field = find_field(event, "depth");
-	if (!field)
-		die("can't find depth in entry graph");
-	depth = read_size(data + field->offset, field->size);
-
-	/* Function */
-	for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++)
-		printf(" ");
-
-	field = find_field(event, "func");
-	if (!field)
-		die("can't find func in entry graph");
-	val = read_size(data + field->offset, field->size);
-	func = find_func(val);
-
-	if (func)
-		printf("%s();", func->func);
-	else
-		printf("%llx();", val);
-}
-
-static void print_graph_nested(struct event *event, void *data)
-{
-	struct format_field *field;
-	unsigned long long depth;
-	unsigned long long val;
-	struct func_map *func;
-	int i;
-
-	/* No overhead */
-	print_graph_overhead(-1);
-
-	/* No time */
-	printf("           |  ");
-
-	field = find_field(event, "depth");
-	if (!field)
-		die("can't find depth in entry graph");
-	depth = read_size(data + field->offset, field->size);
-
-	/* Function */
-	for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++)
-		printf(" ");
-
-	field = find_field(event, "func");
-	if (!field)
-		die("can't find func in entry graph");
-	val = read_size(data + field->offset, field->size);
-	func = find_func(val);
-
-	if (func)
-		printf("%s() {", func->func);
-	else
-		printf("%llx() {", val);
-}
-
-static void
-pretty_print_func_ent(void *data, int size, struct event *event,
-		      int cpu, int pid, const char *comm,
-		      unsigned long secs, unsigned long usecs)
-{
-	struct format_field *field;
-	struct record *rec;
-	void *copy_data;
-	unsigned long val;
-
-	printf("%5lu.%06lu |  ", secs, usecs);
-
-	print_graph_cpu(cpu);
-	print_graph_proc(pid, comm);
-
-	printf(" | ");
-
-	if (latency_format) {
-		print_lat_fmt(data, size);
-		printf(" | ");
-	}
-
-	field = find_field(event, "func");
-	if (!field)
-		die("function entry does not have func field");
-
-	val = read_size(data + field->offset, field->size);
-
-	/*
-	 * peek_data may unmap the data pointer. Copy it first.
-	 */
-	copy_data = malloc_or_die(size);
-	memcpy(copy_data, data, size);
-	data = copy_data;
-
-	rec = trace_peek_data(cpu);
-	if (rec) {
-		rec = get_return_for_leaf(cpu, pid, val, rec);
-		if (rec) {
-			print_graph_entry_leaf(event, data, rec);
-			goto out_free;
-		}
-	}
-	print_graph_nested(event, data);
-out_free:
-	free(data);
-}
-
-static void
-pretty_print_func_ret(void *data, int size __unused, struct event *event,
-		      int cpu, int pid, const char *comm,
-		      unsigned long secs, unsigned long usecs)
-{
-	unsigned long long rettime, calltime;
-	unsigned long long duration, depth;
-	struct format_field *field;
-	int i;
-
-	printf("%5lu.%06lu |  ", secs, usecs);
-
-	print_graph_cpu(cpu);
-	print_graph_proc(pid, comm);
-
-	printf(" | ");
-
-	if (latency_format) {
-		print_lat_fmt(data, size);
-		printf(" | ");
-	}
-
-	field = find_field(event, "rettime");
-	if (!field)
-		die("can't find rettime in return graph");
-	rettime = read_size(data + field->offset, field->size);
-
-	field = find_field(event, "calltime");
-	if (!field)
-		die("can't find calltime in return graph");
-	calltime = read_size(data + field->offset, field->size);
-
-	duration = rettime - calltime;
-
-	/* Overhead */
-	print_graph_overhead(duration);
-
-	/* Duration */
-	print_graph_duration(duration);
-
-	field = find_field(event, "depth");
-	if (!field)
-		die("can't find depth in entry graph");
-	depth = read_size(data + field->offset, field->size);
-
-	/* Function */
-	for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++)
-		printf(" ");
-
-	printf("}");
-}
-
-static void
-pretty_print_func_graph(void *data, int size, struct event *event,
-			int cpu, int pid, const char *comm,
-			unsigned long secs, unsigned long usecs)
-{
-	if (event->flags & EVENT_FL_ISFUNCENT)
-		pretty_print_func_ent(data, size, event,
-				      cpu, pid, comm, secs, usecs);
-	else if (event->flags & EVENT_FL_ISFUNCRET)
-		pretty_print_func_ret(data, size, event,
-				      cpu, pid, comm, secs, usecs);
-	printf("\n");
-}
-
-void print_event(int cpu, void *data, int size, unsigned long long nsecs,
-		  char *comm)
-{
-	struct event *event;
-	unsigned long secs;
-	unsigned long usecs;
-	int type;
-	int pid;
-
-	secs = nsecs / NSECS_PER_SEC;
-	nsecs -= secs * NSECS_PER_SEC;
-	usecs = nsecs / NSECS_PER_USEC;
-
-	type = trace_parse_common_type(data);
-
-	event = trace_find_event(type);
-	if (!event) {
-		warning("ug! no event found for type %d", type);
-		return;
-	}
-
-	pid = trace_parse_common_pid(data);
-
-	if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET))
-		return pretty_print_func_graph(data, size, event, cpu,
-					       pid, comm, secs, usecs);
-
-	if (latency_format) {
-		printf("%8.8s-%-5d %3d",
-		       comm, pid, cpu);
-		print_lat_fmt(data, size);
-	} else
-		printf("%16s-%-5d [%03d]", comm, pid,  cpu);
-
-	printf(" %5lu.%06lu: %s: ", secs, usecs, event->name);
-
-	if (event->flags & EVENT_FL_FAILED) {
-		printf("EVENT '%s' FAILED TO PARSE\n",
-		       event->name);
-		return;
-	}
-
-	pretty_print(data, size, event);
-	printf("\n");
-}
-
-static void print_fields(struct print_flag_sym *field)
-{
-	printf("{ %s, %s }", field->value, field->str);
-	if (field->next) {
-		printf(", ");
-		print_fields(field->next);
-	}
-}
-
-static void print_args(struct print_arg *args)
-{
-	int print_paren = 1;
-
-	switch (args->type) {
-	case PRINT_NULL:
-		printf("null");
-		break;
-	case PRINT_ATOM:
-		printf("%s", args->atom.atom);
-		break;
-	case PRINT_FIELD:
-		printf("REC->%s", args->field.name);
-		break;
-	case PRINT_FLAGS:
-		printf("__print_flags(");
-		print_args(args->flags.field);
-		printf(", %s, ", args->flags.delim);
-		print_fields(args->flags.flags);
-		printf(")");
-		break;
-	case PRINT_SYMBOL:
-		printf("__print_symbolic(");
-		print_args(args->symbol.field);
-		printf(", ");
-		print_fields(args->symbol.symbols);
-		printf(")");
-		break;
-	case PRINT_STRING:
-		printf("__get_str(%s)", args->string.string);
-		break;
-	case PRINT_TYPE:
-		printf("(%s)", args->typecast.type);
-		print_args(args->typecast.item);
-		break;
-	case PRINT_OP:
-		if (strcmp(args->op.op, ":") == 0)
-			print_paren = 0;
-		if (print_paren)
-			printf("(");
-		print_args(args->op.left);
-		printf(" %s ", args->op.op);
-		print_args(args->op.right);
-		if (print_paren)
-			printf(")");
-		break;
-	default:
-		/* we should warn... */
-		return;
-	}
-	if (args->next) {
-		printf("\n");
-		print_args(args->next);
-	}
-}
-
-int parse_ftrace_file(char *buf, unsigned long size)
-{
-	struct format_field *field;
-	struct print_arg *arg, **list;
-	struct event *event;
-	int ret;
-
-	init_input_buf(buf, size);
-
-	event = alloc_event();
-	if (!event)
-		return -ENOMEM;
-
-	event->flags |= EVENT_FL_ISFTRACE;
-
-	event->name = event_read_name();
-	if (!event->name)
-		die("failed to read ftrace event name");
-
-	if (strcmp(event->name, "function") == 0)
-		event->flags |= EVENT_FL_ISFUNC;
-
-	else if (strcmp(event->name, "funcgraph_entry") == 0)
-		event->flags |= EVENT_FL_ISFUNCENT;
-
-	else if (strcmp(event->name, "funcgraph_exit") == 0)
-		event->flags |= EVENT_FL_ISFUNCRET;
-
-	else if (strcmp(event->name, "bprint") == 0)
-		event->flags |= EVENT_FL_ISBPRINT;
-
-	event->id = event_read_id();
-	if (event->id < 0)
-		die("failed to read ftrace event id");
-
-	add_event(event);
-
-	ret = event_read_format(event);
-	if (ret < 0)
-		die("failed to read ftrace event format");
-
-	ret = event_read_print(event);
-	if (ret < 0)
-		die("failed to read ftrace event print fmt");
-
-	/* New ftrace handles args */
-	if (ret > 0)
-		return 0;
-	/*
-	 * The arguments for ftrace files are parsed by the fields.
-	 * Set up the fields as their arguments.
-	 */
-	list = &event->print_fmt.args;
-	for (field = event->format.fields; field; field = field->next) {
-		arg = malloc_or_die(sizeof(*arg));
-		memset(arg, 0, sizeof(*arg));
-		*list = arg;
-		list = &arg->next;
-		arg->type = PRINT_FIELD;
-		arg->field.name = field->name;
-		arg->field.field = field;
-	}
-	return 0;
-}
-
-int parse_event_file(char *buf, unsigned long size, char *sys)
-{
-	struct event *event;
-	int ret;
-
-	init_input_buf(buf, size);
-
-	event = alloc_event();
-	if (!event)
-		return -ENOMEM;
-
-	event->name = event_read_name();
-	if (!event->name)
-		die("failed to read event name");
-
-	event->id = event_read_id();
-	if (event->id < 0)
-		die("failed to read event id");
-
-	ret = event_read_format(event);
-	if (ret < 0) {
-		warning("failed to read event format for %s", event->name);
-		goto event_failed;
-	}
-
-	ret = event_read_print(event);
-	if (ret < 0) {
-		warning("failed to read event print fmt for %s", event->name);
-		goto event_failed;
-	}
-
-	event->system = strdup(sys);
-
-#define PRINT_ARGS 0
-	if (PRINT_ARGS && event->print_fmt.args)
-		print_args(event->print_fmt.args);
-
-	add_event(event);
-	return 0;
-
- event_failed:
-	event->flags |= EVENT_FL_FAILED;
-	/* still add it even if it failed */
-	add_event(event);
-	return -1;
-}
-
-void parse_set_info(int nr_cpus, int long_sz)
-{
-	cpus = nr_cpus;
-	long_size = long_sz;
-}
-
-int common_pc(struct scripting_context *context)
-{
-	return parse_common_pc(context->event_data);
-}
-
-int common_flags(struct scripting_context *context)
-{
-	return parse_common_flags(context->event_data);
-}
-
-int common_lock_depth(struct scripting_context *context)
-{
-	return parse_common_lock_depth(context->event_data);
-}
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
deleted file mode 100644
index 2583227..0000000
--- a/tools/perf/util/trace-event-read.c
+++ /dev/null
@@ -1,539 +0,0 @@
-/*
- * Copyright (C) 2009, Steven Rostedt <srostedt@xxxxxxxxxx>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * 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 _FILE_OFFSET_BITS 64
-
-#include <dirent.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <getopt.h>
-#include <stdarg.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <sys/mman.h>
-#include <pthread.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <ctype.h>
-#include <errno.h>
-
-#include "../perf.h"
-#include <lk/util.h>
-#include "trace-event.h"
-
-static int input_fd;
-
-static int read_page;
-
-int file_bigendian;
-int host_bigendian;
-static int long_size;
-
-static unsigned long	page_size;
-
-static ssize_t calc_data_size;
-static bool repipe;
-
-static int do_read(int fd, void *buf, int size)
-{
-	int rsize = size;
-
-	while (size) {
-		int ret = read(fd, buf, size);
-
-		if (ret <= 0)
-			return -1;
-
-		if (repipe) {
-			int retw = write(STDOUT_FILENO, buf, ret);
-
-			if (retw <= 0 || retw != ret)
-				die("repiping input file");
-		}
-
-		size -= ret;
-		buf += ret;
-	}
-
-	return rsize;
-}
-
-static int read_or_die(void *data, int size)
-{
-	int r;
-
-	r = do_read(input_fd, data, size);
-	if (r <= 0)
-		die("reading input file (size expected=%d received=%d)",
-		    size, r);
-
-	if (calc_data_size)
-		calc_data_size += r;
-
-	return r;
-}
-
-/* If it fails, the next read will report it */
-static void skip(int size)
-{
-	char buf[BUFSIZ];
-	int r;
-
-	while (size) {
-		r = size > BUFSIZ ? BUFSIZ : size;
-		read_or_die(buf, r);
-		size -= r;
-	};
-}
-
-static unsigned int read4(void)
-{
-	unsigned int data;
-
-	read_or_die(&data, 4);
-	return __data2host4(data);
-}
-
-static unsigned long long read8(void)
-{
-	unsigned long long data;
-
-	read_or_die(&data, 8);
-	return __data2host8(data);
-}
-
-static char *read_string(void)
-{
-	char buf[BUFSIZ];
-	char *str = NULL;
-	int size = 0;
-	off_t r;
-	char c;
-
-	for (;;) {
-		r = read(input_fd, &c, 1);
-		if (r < 0)
-			die("reading input file");
-
-		if (!r)
-			die("no data");
-
-		if (repipe) {
-			int retw = write(STDOUT_FILENO, &c, 1);
-
-			if (retw <= 0 || retw != r)
-				die("repiping input file string");
-		}
-
-		buf[size++] = c;
-
-		if (!c)
-			break;
-	}
-
-	if (calc_data_size)
-		calc_data_size += size;
-
-	str = malloc_or_die(size);
-	memcpy(str, buf, size);
-
-	return str;
-}
-
-static void read_proc_kallsyms(void)
-{
-	unsigned int size;
-	char *buf;
-
-	size = read4();
-	if (!size)
-		return;
-
-	buf = malloc_or_die(size + 1);
-	read_or_die(buf, size);
-	buf[size] = '\0';
-
-	parse_proc_kallsyms(buf, size);
-
-	free(buf);
-}
-
-static void read_ftrace_printk(void)
-{
-	unsigned int size;
-	char *buf;
-
-	size = read4();
-	if (!size)
-		return;
-
-	buf = malloc_or_die(size);
-	read_or_die(buf, size);
-
-	parse_ftrace_printk(buf, size);
-
-	free(buf);
-}
-
-static void read_header_files(void)
-{
-	unsigned long long size;
-	char *header_event;
-	char buf[BUFSIZ];
-
-	read_or_die(buf, 12);
-
-	if (memcmp(buf, "header_page", 12) != 0)
-		die("did not read header page");
-
-	size = read8();
-	skip(size);
-
-	/*
-	 * The size field in the page is of type long,
-	 * use that instead, since it represents the kernel.
-	 */
-	long_size = header_page_size_size;
-
-	read_or_die(buf, 13);
-	if (memcmp(buf, "header_event", 13) != 0)
-		die("did not read header event");
-
-	size = read8();
-	header_event = malloc_or_die(size);
-	read_or_die(header_event, size);
-	free(header_event);
-}
-
-static void read_ftrace_file(unsigned long long size)
-{
-	char *buf;
-
-	buf = malloc_or_die(size);
-	read_or_die(buf, size);
-	parse_ftrace_file(buf, size);
-	free(buf);
-}
-
-static void read_event_file(char *sys, unsigned long long size)
-{
-	char *buf;
-
-	buf = malloc_or_die(size);
-	read_or_die(buf, size);
-	parse_event_file(buf, size, sys);
-	free(buf);
-}
-
-static void read_ftrace_files(void)
-{
-	unsigned long long size;
-	int count;
-	int i;
-
-	count = read4();
-
-	for (i = 0; i < count; i++) {
-		size = read8();
-		read_ftrace_file(size);
-	}
-}
-
-static void read_event_files(void)
-{
-	unsigned long long size;
-	char *sys;
-	int systems;
-	int count;
-	int i,x;
-
-	systems = read4();
-
-	for (i = 0; i < systems; i++) {
-		sys = read_string();
-
-		count = read4();
-		for (x=0; x < count; x++) {
-			size = read8();
-			read_event_file(sys, size);
-		}
-	}
-}
-
-struct cpu_data {
-	unsigned long long	offset;
-	unsigned long long	size;
-	unsigned long long	timestamp;
-	struct record		*next;
-	char			*page;
-	int			cpu;
-	int			index;
-	int			page_size;
-};
-
-static struct cpu_data *cpu_data;
-
-static void update_cpu_data_index(int cpu)
-{
-	cpu_data[cpu].offset += page_size;
-	cpu_data[cpu].size -= page_size;
-	cpu_data[cpu].index = 0;
-}
-
-static void get_next_page(int cpu)
-{
-	off_t save_seek;
-	off_t ret;
-
-	if (!cpu_data[cpu].page)
-		return;
-
-	if (read_page) {
-		if (cpu_data[cpu].size <= page_size) {
-			free(cpu_data[cpu].page);
-			cpu_data[cpu].page = NULL;
-			return;
-		}
-
-		update_cpu_data_index(cpu);
-
-		/* other parts of the code may expect the pointer to not move */
-		save_seek = lseek(input_fd, 0, SEEK_CUR);
-
-		ret = lseek(input_fd, cpu_data[cpu].offset, SEEK_SET);
-		if (ret == (off_t)-1)
-			die("failed to lseek");
-		ret = read(input_fd, cpu_data[cpu].page, page_size);
-		if (ret < 0)
-			die("failed to read page");
-
-		/* reset the file pointer back */
-		lseek(input_fd, save_seek, SEEK_SET);
-
-		return;
-	}
-
-	munmap(cpu_data[cpu].page, page_size);
-	cpu_data[cpu].page = NULL;
-
-	if (cpu_data[cpu].size <= page_size)
-		return;
-
-	update_cpu_data_index(cpu);
-
-	cpu_data[cpu].page = mmap(NULL, page_size, PROT_READ, MAP_PRIVATE,
-				  input_fd, cpu_data[cpu].offset);
-	if (cpu_data[cpu].page == MAP_FAILED)
-		die("failed to mmap cpu %d at offset 0x%llx",
-		    cpu, cpu_data[cpu].offset);
-}
-
-static unsigned int type_len4host(unsigned int type_len_ts)
-{
-	if (file_bigendian)
-		return (type_len_ts >> 27) & ((1 << 5) - 1);
-	else
-		return type_len_ts & ((1 << 5) - 1);
-}
-
-static unsigned int ts4host(unsigned int type_len_ts)
-{
-	if (file_bigendian)
-		return type_len_ts & ((1 << 27) - 1);
-	else
-		return type_len_ts >> 5;
-}
-
-static int calc_index(void *ptr, int cpu)
-{
-	return (unsigned long)ptr - (unsigned long)cpu_data[cpu].page;
-}
-
-struct record *trace_peek_data(int cpu)
-{
-	struct record *data;
-	void *page = cpu_data[cpu].page;
-	int idx = cpu_data[cpu].index;
-	void *ptr = page + idx;
-	unsigned long long extend;
-	unsigned int type_len_ts;
-	unsigned int type_len;
-	unsigned int delta;
-	unsigned int length = 0;
-
-	if (cpu_data[cpu].next)
-		return cpu_data[cpu].next;
-
-	if (!page)
-		return NULL;
-
-	if (!idx) {
-		/* FIXME: handle header page */
-		if (header_page_ts_size != 8)
-			die("expected a long long type for timestamp");
-		cpu_data[cpu].timestamp = data2host8(ptr);
-		ptr += 8;
-		switch (header_page_size_size) {
-		case 4:
-			cpu_data[cpu].page_size = data2host4(ptr);
-			ptr += 4;
-			break;
-		case 8:
-			cpu_data[cpu].page_size = data2host8(ptr);
-			ptr += 8;
-			break;
-		default:
-			die("bad long size");
-		}
-		ptr = cpu_data[cpu].page + header_page_data_offset;
-	}
-
-read_again:
-	idx = calc_index(ptr, cpu);
-
-	if (idx >= cpu_data[cpu].page_size) {
-		get_next_page(cpu);
-		return trace_peek_data(cpu);
-	}
-
-	type_len_ts = data2host4(ptr);
-	ptr += 4;
-
-	type_len = type_len4host(type_len_ts);
-	delta = ts4host(type_len_ts);
-
-	switch (type_len) {
-	case RINGBUF_TYPE_PADDING:
-		if (!delta)
-			die("error, hit unexpected end of page");
-		length = data2host4(ptr);
-		ptr += 4;
-		length *= 4;
-		ptr += length;
-		goto read_again;
-
-	case RINGBUF_TYPE_TIME_EXTEND:
-		extend = data2host4(ptr);
-		ptr += 4;
-		extend <<= TS_SHIFT;
-		extend += delta;
-		cpu_data[cpu].timestamp += extend;
-		goto read_again;
-
-	case RINGBUF_TYPE_TIME_STAMP:
-		ptr += 12;
-		break;
-	case 0:
-		length = data2host4(ptr);
-		ptr += 4;
-		die("here! length=%d", length);
-		break;
-	default:
-		length = type_len * 4;
-		break;
-	}
-
-	cpu_data[cpu].timestamp += delta;
-
-	data = malloc_or_die(sizeof(*data));
-	memset(data, 0, sizeof(*data));
-
-	data->ts = cpu_data[cpu].timestamp;
-	data->size = length;
-	data->data = ptr;
-	ptr += length;
-
-	cpu_data[cpu].index = calc_index(ptr, cpu);
-	cpu_data[cpu].next = data;
-
-	return data;
-}
-
-struct record *trace_read_data(int cpu)
-{
-	struct record *data;
-
-	data = trace_peek_data(cpu);
-	cpu_data[cpu].next = NULL;
-
-	return data;
-}
-
-ssize_t trace_report(int fd, bool __repipe)
-{
-	char buf[BUFSIZ];
-	char test[] = { 23, 8, 68 };
-	char *version;
-	int show_version = 0;
-	int show_funcs = 0;
-	int show_printk = 0;
-	ssize_t size;
-
-	calc_data_size = 1;
-	repipe = __repipe;
-
-	input_fd = fd;
-
-	read_or_die(buf, 3);
-	if (memcmp(buf, test, 3) != 0)
-		die("no trace data in the file");
-
-	read_or_die(buf, 7);
-	if (memcmp(buf, "tracing", 7) != 0)
-		die("not a trace file (missing 'tracing' tag)");
-
-	version = read_string();
-	if (show_version)
-		printf("version = %s\n", version);
-	free(version);
-
-	read_or_die(buf, 1);
-	file_bigendian = buf[0];
-	host_bigendian = bigendian();
-
-	read_or_die(buf, 1);
-	long_size = buf[0];
-
-	page_size = read4();
-
-	read_header_files();
-
-	read_ftrace_files();
-	read_event_files();
-	read_proc_kallsyms();
-	read_ftrace_printk();
-
-	size = calc_data_size - 1;
-	calc_data_size = 0;
-	repipe = false;
-
-	if (show_funcs) {
-		print_funcs();
-		return size;
-	}
-	if (show_printk) {
-		print_printk();
-		return size;
-	}
-
-	return size;
-}
-- 
1.7.1

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