/*
* probes/lttng-types.c
*
- * Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
* LTTng types.
+ *
+ * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; only
+ * version 2.1 of the License.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/module.h>
#include <linux/types.h>
-#include <linux/seq_file.h>
-#include <linux/jbd.h> /* tid_t */
-#include <linux/debugfs.h>
+#include "../wrapper/vmalloc.h" /* for wrapper_vmalloc_sync_all() */
+#include "../lttng-events.h"
#include "lttng-types.h"
-
-struct dentry *lttng_types_dentry;
-
-#undef ENTRY
-#define ENTRY(name) [atype_##name] = #name
-
-const char * const astract_types[NR_ABSTRACT_TYPES] = {
- ENTRY(integer),
- ENTRY(enum),
- ENTRY(array),
- ENTRY(sequence),
- ENTRY(string),
-};
-
-#undef ENTRY
-#define ENTRY(name) [lttng_encode_##name] = #name
-
-const char * const string_encodings[NR_STRING_ENCODINGS] = {
- ENTRY(UTF8),
- ENTRY(ASCII),
-};
+#include <linux/hrtimer.h>
#define STAGE_EXPORT_ENUMS
#include "lttng-types.h"
#include "lttng-type-list.h"
#undef STAGE_EXPORT_ENUMS
-struct lttng_type lttng_types[] = {
+struct lttng_enum lttng_enums[] = {
#define STAGE_EXPORT_TYPES
#include "lttng-types.h"
#include "lttng-type-list.h"
#undef STAGE_EXPORT_TYPES
};
-static void print_enum(struct seq_file *m, const struct lttng_enum *lttng_enum)
-{
- int i;
-
- for (i = 0; i < lttng_enum->len; i++) {
- if (lttng_enum->entries[i].start == lttng_enum->entries[i].end)
- seq_printf(m, "\t\t{ %llu, %s },\n",
- lttng_enum->entries[i].start,
- lttng_enum->entries[i].string);
- else
- seq_printf(m, "\t\t{ { %llu, %llu }, %s },\n",
- lttng_enum->entries[i].start,
- lttng_enum->entries[i].end,
- lttng_enum->entries[i].string);
- }
-}
-
-static void print_event_type(struct seq_file *m, const struct lttng_type *type)
-{
- switch(type->atype) {
- case atype_integer:
- seq_printf(m, "type %s {\n"
- "\tparent = %s;\n"
- "\tsize = %u;\n"
- "\tsigned = %u;\n"
- "\talign = %u;\n",
- type->name,
- astract_types[type->atype],
- type->u.integer.size,
- type->u.integer.signedness,
- type->u.integer.alignment);
- if (type->u.integer.reverse_byte_order)
- seq_printf(m, "\tbyte_order = %s;\n",
- (__BYTE_ORDER == __LITTLE_ENDIAN) ?
- "be" : "le");
- seq_printf(m, "};\n");
- break;
- case atype_enum:
- seq_printf(m, "type %s {\n"
- "\tparent = %s;\n"
- "\tparent.parent = %s;\n"
- "\tmap = {\n",
- type->name,
- astract_types[type->atype],
- type->u.enumeration.parent_type);
- print_enum(m, &type->u.enumeration.def);
- seq_printf(m, "\t};\n"
- "};\n");
- break;
- case atype_array:
- seq_printf(m, "type %s {\n"
- "\tparent = %s;\n"
- "\telem_type = %s;\n"
- "\tlength = %u;\n"
- "};\n", type->name,
- astract_types[type->atype],
- type->u.array.elem_type,
- type->u.array.length);
- break;
- case atype_sequence:
- seq_printf(m, "type %s {\n"
- "\tparent = %s;\n"
- "\telem_type = %s;\n"
- "\tlength_type = %s;\n"
- "};\n", type->name,
- astract_types[type->atype],
- type->u.sequence.elem_type,
- type->u.sequence.length_type);
- break;
- case atype_string:
- seq_printf(m, "type %s {\n"
- "\tparent = %s;\n"
- "\tencoding = %s;\n"
- "};\n", type->name,
- astract_types[type->atype],
- string_encodings[type->u.string.encoding]);
- break;
- default:
- seq_printf(m, "<<< unknown abstract type %s for type %s >>>\n",
- astract_types[type->atype],
- type->name);
- }
-}
-
-static void *lttng_seq_start(struct seq_file *m, loff_t *pos)
-{
- struct lttng_type *type = <tng_types[*pos];
-
- if (type > <tng_types[ARRAY_SIZE(lttng_types) - 1])
- return NULL;
- return type;
-}
-
-static void *lttng_seq_next(struct seq_file *m, void *v, loff_t *ppos)
-{
- struct lttng_type *type = <tng_types[++(*ppos)];
-
- if (type > <tng_types[ARRAY_SIZE(lttng_types) - 1])
- return NULL;
- return type;
-}
-
-static void lttng_seq_stop(struct seq_file *m, void *v)
-{
-}
-
-static int lttng_seq_show(struct seq_file *m, void *v)
-{
- struct lttng_type *type = v;
-
- print_event_type(m, type);
- return 0;
-}
-
-static const struct seq_operations lttng_types_seq_ops = {
- .start = lttng_seq_start,
- .next = lttng_seq_next,
- .stop = lttng_seq_stop,
- .show = lttng_seq_show,
-};
-
-static int
-lttng_types_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, <tng_types_seq_ops);
-}
-
-static const struct file_operations lttng_types_fops = {
- .open = lttng_types_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-
static int lttng_types_init(void)
{
int ret = 0;
- lttng_types_dentry = debugfs_create_file("lttng-types", S_IWUSR,
- NULL, NULL, <tng_types_fops);
- if (IS_ERR(lttng_types_dentry) || !lttng_types_dentry) {
- printk(KERN_ERR "Error creating LTTng type export file\n");
- ret = -ENOMEM;
- goto error;
- }
-error:
+ wrapper_vmalloc_sync_all();
+ /* TODO */
return ret;
}
static void lttng_types_exit(void)
{
- debugfs_remove(lttng_types_dentry);
}
module_exit(lttng_types_exit);