fix: random: rather than entropy_store abstraction, use global (v5.17)

[lttng-modules.git] / lttng-filter-specialize.c

diff --git a/lttng-filter-specialize.c b/lttng-filter-specialize.c
index 7112b0ae0aa3ec3f75ddc48cdb08bb60ad8468f2..e9a85c78569fa0fda78fae76b9dc2982bd11dd2d 100644 (file)
--- a/lttng-filter-specialize.c
+++ b/lttng-filter-specialize.c
@@ -1,33 +1,18 @@
-/*
+/* SPDX-License-Identifier: MIT
+ *
  * lttng-filter-specialize.c
  *
  * LTTng modules filter code specializer.
  *
  * Copyright (C) 2010-2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * 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:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * 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/slab.h>
 #include <lttng-filter.h>
 #include "lib/align.h"
 
+#include <wrapper/compiler_attributes.h>
+
 static ssize_t bytecode_reserve_data(struct bytecode_runtime *runtime,
                size_t align, size_t len)
 {
@@ -263,7 +248,8 @@ static int specialize_get_index(struct bytecode_runtime *runtime,
                }
                case OBJECT_TYPE_STRUCT:
                        /* Only generated by the specialize phase. */
-               case OBJECT_TYPE_VARIANT:       /* Fall-through */
+               case OBJECT_TYPE_VARIANT:
+                       lttng_fallthrough;
                default:
                        printk(KERN_WARNING "Unexpected get index type %d",
                                (int) stack_top->load.object_type);
@@ -518,6 +504,7 @@ int lttng_filter_specialize_bytecode(struct lttng_event *event,
                        goto end;
 
                case FILTER_OP_RETURN:
+               case FILTER_OP_RETURN_S64:
                        ret = 0;
                        goto end;
 
@@ -527,8 +514,6 @@ int lttng_filter_specialize_bytecode(struct lttng_event *event,
                case FILTER_OP_MOD:
                case FILTER_OP_PLUS:
                case FILTER_OP_MINUS:
-               case FILTER_OP_RSHIFT:
-               case FILTER_OP_LSHIFT:
                        printk(KERN_WARNING "unsupported bytecode op %u\n",
                                (unsigned int) *(filter_opcode_t *) pc);
                        ret = -EINVAL;
@@ -804,6 +789,8 @@ int lttng_filter_specialize_bytecode(struct lttng_event *event,
                case FILTER_OP_LT_S64_DOUBLE:
                case FILTER_OP_GE_S64_DOUBLE:
                case FILTER_OP_LE_S64_DOUBLE:
+               case FILTER_OP_BIT_RSHIFT:
+               case FILTER_OP_BIT_LSHIFT:
                case FILTER_OP_BIT_AND:
                case FILTER_OP_BIT_OR:
                case FILTER_OP_BIT_XOR:
@@ -885,6 +872,13 @@ int lttng_filter_specialize_bytecode(struct lttng_event *event,
                        break;
                }
 
+               case FILTER_OP_UNARY_BIT_NOT:
+               {
+                       /* Pop 1, push 1 */
+                       next_pc += sizeof(struct unary_op);
+                       break;
+               }
+
                case FILTER_OP_UNARY_PLUS_S64:
                case FILTER_OP_UNARY_MINUS_S64:
                case FILTER_OP_UNARY_NOT_S64: