Import of the watch repository from Pebble

third_party/jerryscript/jerry-core/config.h

@@ -0,0 +1,146 @@
+/* Copyright 2014-2016 Samsung Electronics Co., Ltd.
+ * Copyright 2016 University of Szeged.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+/**
+ * Limit of data (system heap, engine's data except engine's own heap)
+ */
+#define CONFIG_MEM_DATA_LIMIT_MINUS_HEAP_SIZE (1024)
+
+/**
+ * Limit of stack size
+ */
+#define CONFIG_MEM_STACK_LIMIT (4096)
+
+/**
+ * Size of pool chunk
+ *
+ * Should not be less than size of any of ECMA Object Model's data types.
+ */
+#define CONFIG_MEM_POOL_CHUNK_SIZE (8)
+
+/**
+ * Size of heap
+ */
+#ifndef CONFIG_MEM_HEAP_AREA_SIZE
+# define CONFIG_MEM_HEAP_AREA_SIZE (512 * 1024)
+#endif /* !CONFIG_MEM_HEAP_AREA_SIZE */
+
+/**
+ * Max heap usage limit
+ */
+#define CONFIG_MEM_HEAP_MAX_LIMIT 8192
+
+/**
+ * Desired limit of heap usage
+ */
+#define CONFIG_MEM_HEAP_DESIRED_LIMIT (JERRY_MIN (CONFIG_MEM_HEAP_AREA_SIZE / 32, CONFIG_MEM_HEAP_MAX_LIMIT))
+
+/**
+ * Number of lower bits in key of literal hash table.
+ */
+#define CONFIG_LITERAL_HASH_TABLE_KEY_BITS (7)
+
+/**
+ * Width of fields used for holding counter of references to ecma-strings and ecma-objects
+ *
+ * The option affects maximum number of simultaneously existing:
+ *  - references to one string;
+ *  - stack references to one object
+ * The number is ((2 ^ CONFIG_ECMA_REFERENCE_COUNTER_WIDTH) - 1).
+ *
+ * Also the option affects size of ECMA Object Model's data types.
+ * In any case size of any of the types should not exceed CONFIG_MEM_POOL_CHUNK_SIZE.
+ */
+#define CONFIG_ECMA_REFERENCE_COUNTER_WIDTH (12)
+
+#define CONFIG_ECMA_REFERENCE_COUNTER_LIMIT ((1u << CONFIG_ECMA_REFERENCE_COUNTER_WIDTH) - 1u)
+
+/**
+ * Use 32-bit/64-bit float for ecma-numbers
+ */
+#define CONFIG_ECMA_NUMBER_FLOAT32 (1u) /* 32-bit float */
+#define CONFIG_ECMA_NUMBER_FLOAT64 (2u) /* 64-bit float */
+
+#ifndef CONFIG_ECMA_NUMBER_TYPE
+# define CONFIG_ECMA_NUMBER_TYPE CONFIG_ECMA_NUMBER_FLOAT64
+#else /* CONFIG_ECMA_NUMBER_TYPE */
+# if (CONFIG_ECMA_NUMBER_TYPE != CONFIG_ECMA_NUMBER_FLOAT32 \
+      && CONFIG_ECMA_NUMBER_TYPE != CONFIG_ECMA_NUMBER_FLOAT64)
+#  error "ECMA-number storage is configured incorrectly"
+# endif /* CONFIG_ECMA_NUMBER_TYPE != CONFIG_ECMA_NUMBER_FLOAT32
+           && CONFIG_ECMA_NUMBER_TYPE != CONFIG_ECMA_NUMBER_FLOAT64 */
+#endif /* !CONFIG_ECMA_NUMBER_TYPE */
+
+/**
+ * Representation for ecma-characters
+ */
+#define CONFIG_ECMA_CHAR_ASCII (1) /* ASCII */
+#define CONFIG_ECMA_CHAR_UTF16 (2) /* UTF-16 */
+
+#ifndef CONFIG_ECMA_CHAR_ENCODING
+# define CONFIG_ECMA_CHAR_ENCODING CONFIG_ECMA_CHAR_ASCII
+#else /* CONFIG_ECMA_CHAR_ENCODING */
+# if (CONFIG_ECMA_CHAR_ENCODING != CONFIG_ECMA_CHAR_ASCII \
+      && CONFIG_ECMA_CHAR_ENCODING != CONFIG_ECMA_CHAR_UTF16)
+#  error "ECMA-char encoding is configured incorrectly"
+# endif /* CONFIG_ECMA_CHAR_ENCODING != CONFIG_ECMA_CHAR_ASCII
+           && CONFIG_ECMA_CHAR_ENCODING != CONFIG_ECMA_CHAR_UTF16 */
+#endif /* !CONFIG_ECMA_CHAR_ENCODING */
+
+/**
+ * Disable ECMA lookup cache
+ */
+// #define CONFIG_ECMA_LCACHE_DISABLE
+
+/**
+ * Disable ECMA property hashmap
+ */
+// #define CONFIG_ECMA_PROPERTY_HASHMAP_DISABLE
+
+/**
+ * Share of newly allocated since last GC objects among all currently allocated objects,
+ * after achieving which, GC is started upon low severity try-give-memory-back requests.
+ *
+ * Share is calculated as the following:
+ *                1.0 / CONFIG_ECMA_GC_NEW_OBJECTS_SHARE_TO_START_GC
+ */
+#define CONFIG_ECMA_GC_NEW_OBJECTS_SHARE_TO_START_GC (16)
+
+/**
+ * Link Global Environment to an empty declarative lexical environment
+ * instead of lexical environment bound to Global Object.
+ */
+// #define CONFIG_ECMA_GLOBAL_ENVIRONMENT_DECLARATIVE
+
+/**
+ * Number of ecma values inlined into VM stack frame
+ */
+#define CONFIG_VM_STACK_FRAME_INLINED_VALUES_NUMBER (16)
+
+/**
+ * Run GC after execution of each byte-code instruction
+ */
+// #define CONFIG_VM_RUN_GC_AFTER_EACH_OPCODE
+
+/**
+ * Flag, indicating whether to enable parser-time byte-code optimizations
+ */
+#define CONFIG_PARSER_ENABLE_PARSE_TIME_BYTE_CODE_OPTIMIZER
+
+#endif /* !CONFIG_H */