* Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
* LTTng types.
+ *
+ * Dual LGPL v2.1/GPL v2 license.
*/
#include <linux/module.h>
#include <linux/types.h>
-#include <linux/seq_file.h>
-#include <linux/jbd.h> /* tid_t */
-#include <linux/debugfs.h>
-#include <linux/vmalloc.h> /* for vmalloc_sync_all */
+#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_indent(struct seq_file *m, unsigned int indent)
-{
- int i;
-
- for (i = 0; i < indent; i++)
- seq_printf(m, "\t");
-}
-
-static void print_enum(struct seq_file *m, unsigned int indent,
- const struct lttng_enum *lttng_enum)
-{
- int i;
-
- for (i = 0; i < lttng_enum->len; i++) {
- print_indent(m, indent);
- if (lttng_enum->entries[i].start == lttng_enum->entries[i].end)
- seq_printf(m, "{ %llu, %s },\n",
- lttng_enum->entries[i].start,
- lttng_enum->entries[i].string);
- else
- seq_printf(m, "{ { %llu, %llu }, %s },\n",
- lttng_enum->entries[i].start,
- lttng_enum->entries[i].end,
- lttng_enum->entries[i].string);
- }
-}
-
-void lttng_print_event_type(struct seq_file *m, unsigned int indent,
- const struct lttng_type *type)
-{
- print_indent(m, indent);
- switch(type->atype) {
- case atype_integer:
- seq_printf(m, "type %s%s{ parent = %s; size = %u; signed = %u; align = %u;",
- type->name ? : "", 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, " byte_order = %s;",
- (__BYTE_ORDER == __LITTLE_ENDIAN) ?
- "be" : "le");
- seq_printf(m, " }");
- break;
- case atype_enum:
- seq_printf(m, "type %s%s{ parent = %s; parent.parent = %s; map = {\n",
- type->name ? : "", type->name ? " " : "",
- astract_types[type->atype],
- type->u.enumeration.parent_type);
- print_enum(m, indent + 2, &type->u.enumeration.def);
- print_indent(m, indent + 1);
- seq_printf(m, "};\n");
- print_indent(m, indent);
- seq_printf(m, "}");
- break;
- case atype_array:
- seq_printf(m, "type %s%s{ parent = %s; elem_type = %s; length = %u; }",
- type->name ? : "", type->name ? " " : "",
- astract_types[type->atype],
- type->u.array.elem_type,
- type->u.array.length);
- break;
- case atype_sequence:
- seq_printf(m, "type %s%s{ parent = %s; elem_type = %s; length_type = %s; }",
- type->name ? : "", 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%s{ parent = %s; encoding = %s; }",
- type->name ? : "", type->name ? " " : "",
- astract_types[type->atype],
- string_encodings[type->u.string.encoding]);
- break;
- default:
- seq_printf(m, "<<< unknown abstract type %s for type %s%s>>>",
- astract_types[type->atype],
- type->name ? : "", type->name ? " " : "");
- }
-}
-EXPORT_SYMBOL_GPL(lttng_print_event_type);
-
-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;
-
- lttng_print_event_type(m, 0, type);
- seq_printf(m, ";\n");
- 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;
- vmalloc_sync_all();
- 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);
projects / lttng-modules.git / blobdiff