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/* Copyright 2014-2015 Samsung Electronics Co., Ltd.
*
* 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 chunk
*/
#define CONFIG_MEM_HEAP_CHUNK_SIZE (64)
/**
* Size of heap
*/
#ifndef CONFIG_MEM_HEAP_AREA_SIZE
# define CONFIG_MEM_HEAP_AREA_SIZE (256 * 1024)
#elif CONFIG_MEM_HEAP_AREA_SIZE > (256 * 1024)
# error "Currently, maximum 256 kilobytes heap size is supported"
#endif /* !CONFIG_MEM_HEAP_AREA_SIZE */
/**
* Desired limit of heap usage
*/
#define CONFIG_MEM_HEAP_DESIRED_LIMIT (CONFIG_MEM_HEAP_AREA_SIZE / 32)
/**
* Log2 of maximum possible offset in the heap
*
* The option affects size of compressed pointer that in turn
* 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.
*
* On the other hand, value 2 ^ CONFIG_MEM_HEAP_OFFSET_LOG should not be less than CONFIG_MEM_HEAP_AREA_SIZE.
*/
#define CONFIG_MEM_HEAP_OFFSET_LOG (18)
/**
* 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 (10)
/**
* Maximum length of strings' concatenation
*/
#define CONFIG_ECMA_STRING_MAX_CONCATENATION_LENGTH (1048576)
/**
* 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_FLOAT32
#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
/**
* 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
/**
* Implementation should correspond to ECMA Compact Profile
*/
// #define CONFIG_ECMA_COMPACT_PROFILE
#ifdef CONFIG_ECMA_COMPACT_PROFILE
// #define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_NUMBER_BUILTIN
// #define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_STRING_BUILTIN
// #define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_BOOLEAN_BUILTIN
// #define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ERROR_BUILTINS
// #define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ARRAY_BUILTIN
// #define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_MATH_BUILTIN
// #define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_JSON_BUILTIN
#define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_DATE_BUILTIN
#define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_REGEXP_BUILTIN
#define CONFIG_ECMA_COMPACT_PROFILE_DISABLE_ANNEXB_BUILTIN
#endif /* CONFIG_ECMA_COMPACT_PROFILE */
/**
* 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 */
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