*
* LTTng modules filter header.
*
- * Copyright (C) 2010-2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2010-2016 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.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
*
- * 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.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * 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
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
*/
#include <linux/kernel.h>
-#include "lttng-events.h"
-#include "filter-bytecode.h"
+#include <lttng-events.h>
+#include <filter-bytecode.h>
/* Filter stack length, in number of entries */
#define FILTER_STACK_LEN 10 /* includes 2 dummy */
REG_S64,
REG_DOUBLE,
REG_STRING,
+ REG_STAR_GLOB_STRING,
REG_TYPE_UNKNOWN,
};
}
/* Execution stack */
+enum estack_string_literal_type {
+ ESTACK_STRING_LITERAL_TYPE_NONE,
+ ESTACK_STRING_LITERAL_TYPE_PLAIN,
+ ESTACK_STRING_LITERAL_TYPE_STAR_GLOB,
+};
+
struct estack_entry {
union {
int64_t v;
const char *str;
const char __user *user_str;
size_t seq_len;
- int literal; /* is string literal ? */
+ enum estack_string_literal_type literal_type;
int user; /* is string from userspace ? */
} s;
} u;
#define estack_ax(stack, top) \
({ \
- WARN_ON_ONCE((top) <= FILTER_STACK_EMPTY); \
+ BUG_ON((top) <= FILTER_STACK_EMPTY); \
&(stack)->e[top]; \
})
#define estack_bx(stack, top) \
({ \
- WARN_ON_ONCE((top) <= FILTER_STACK_EMPTY + 1); \
+ BUG_ON((top) <= FILTER_STACK_EMPTY + 1); \
&(stack)->e[(top) - 1]; \
})
#define estack_push(stack, top, ax, bx) \
do { \
- WARN_ON_ONCE((top) >= FILTER_STACK_LEN - 1); \
+ BUG_ON((top) >= FILTER_STACK_LEN - 1); \
(stack)->e[(top) - 1].u.v = (bx); \
(bx) = (ax); \
++(top); \
#define estack_pop(stack, top, ax, bx) \
do { \
- WARN_ON_ONCE((top) <= FILTER_STACK_EMPTY); \
+ BUG_ON((top) <= FILTER_STACK_EMPTY); \
(ax) = (bx); \
(bx) = (stack)->e[(top) - 2].u.v; \
(top)--; \
int lttng_filter_specialize_bytecode(struct bytecode_runtime *bytecode);
uint64_t lttng_filter_false(void *filter_data,
+ struct lttng_probe_ctx *lttng_probe_ctx,
const char *filter_stack_data);
uint64_t lttng_filter_interpret_bytecode(void *filter_data,
+ struct lttng_probe_ctx *lttng_probe_ctx,
const char *filter_stack_data);
#endif /* _LTTNG_FILTER_H */