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https://github.com/jerryscript-project/jerryscript.git
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f15e7beadc
The standard doesn't defines ECMAScript Compact Profile as a subset of Ecma-262 Edition 5.1. Profile modes can be added easily like the minimal profile if required. JerryScript-DCO-1.0-Signed-off-by: Robert Sipka rsipka.uszeged@partner.samsung.com
166 lines
5.0 KiB
C
166 lines
5.0 KiB
C
/* Copyright 2014-2016 Samsung Electronics Co., Ltd.
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* Copyright 2016 University of Szeged.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef CONFIG_H
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#define CONFIG_H
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/**
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* Limit of data (system heap, engine's data except engine's own heap)
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*/
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#define CONFIG_MEM_DATA_LIMIT_MINUS_HEAP_SIZE (1024)
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/**
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* Limit of stack size
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*/
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#define CONFIG_MEM_STACK_LIMIT (4096)
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/**
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* Size of pool chunk
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*
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* Should not be less than size of any of ECMA Object Model's data types.
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*/
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#define CONFIG_MEM_POOL_CHUNK_SIZE (8)
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/**
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* Size of heap
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*/
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#ifndef CONFIG_MEM_HEAP_AREA_SIZE
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# define CONFIG_MEM_HEAP_AREA_SIZE (512 * 1024)
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#elif CONFIG_MEM_HEAP_AREA_SIZE > (512 * 1024)
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# error "Currently, maximum 512 kilobytes heap size is supported"
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#endif /* !CONFIG_MEM_HEAP_AREA_SIZE */
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/**
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* Max heap usage limit
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*/
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#define CONFIG_MEM_HEAP_MAX_LIMIT 8192
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/**
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* Desired limit of heap usage
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*/
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#define CONFIG_MEM_HEAP_DESIRED_LIMIT (JERRY_MIN (CONFIG_MEM_HEAP_AREA_SIZE / 32, CONFIG_MEM_HEAP_MAX_LIMIT))
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/**
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* Log2 of maximum possible offset in the heap
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*
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* The option affects size of compressed pointer that in turn
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* affects size of ECMA Object Model's data types.
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*
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* In any case size of any of the types should not exceed CONFIG_MEM_POOL_CHUNK_SIZE.
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*
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* On the other hand, value 2 ^ CONFIG_MEM_HEAP_OFFSET_LOG should not be less than CONFIG_MEM_HEAP_AREA_SIZE.
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*/
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#define CONFIG_MEM_HEAP_OFFSET_LOG (19)
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/**
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* Number of lower bits in key of literal hash table.
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*/
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#define CONFIG_LITERAL_HASH_TABLE_KEY_BITS (7)
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/**
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* Width of fields used for holding counter of references to ecma-strings and ecma-objects
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*
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* The option affects maximum number of simultaneously existing:
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* - references to one string;
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* - stack references to one object
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* The number is ((2 ^ CONFIG_ECMA_REFERENCE_COUNTER_WIDTH) - 1).
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*
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* Also the option affects size of ECMA Object Model's data types.
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* In any case size of any of the types should not exceed CONFIG_MEM_POOL_CHUNK_SIZE.
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*/
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#define CONFIG_ECMA_REFERENCE_COUNTER_WIDTH (12)
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#define CONFIG_ECMA_REFERENCE_COUNTER_LIMIT ((1u << CONFIG_ECMA_REFERENCE_COUNTER_WIDTH) - 1u)
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/**
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* Maximum length of strings' concatenation
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*/
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#define CONFIG_ECMA_STRING_MAX_CONCATENATION_LENGTH (1048576)
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/**
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* Use 32-bit/64-bit float for ecma-numbers
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*/
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#define CONFIG_ECMA_NUMBER_FLOAT32 (1u) /* 32-bit float */
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#define CONFIG_ECMA_NUMBER_FLOAT64 (2u) /* 64-bit float */
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#ifndef CONFIG_ECMA_NUMBER_TYPE
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# define CONFIG_ECMA_NUMBER_TYPE CONFIG_ECMA_NUMBER_FLOAT64
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#else /* CONFIG_ECMA_NUMBER_TYPE */
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# if (CONFIG_ECMA_NUMBER_TYPE != CONFIG_ECMA_NUMBER_FLOAT32 \
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&& CONFIG_ECMA_NUMBER_TYPE != CONFIG_ECMA_NUMBER_FLOAT64)
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# error "ECMA-number storage is configured incorrectly"
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# endif /* CONFIG_ECMA_NUMBER_TYPE != CONFIG_ECMA_NUMBER_FLOAT32
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&& CONFIG_ECMA_NUMBER_TYPE != CONFIG_ECMA_NUMBER_FLOAT64 */
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#endif /* !CONFIG_ECMA_NUMBER_TYPE */
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/**
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* Representation for ecma-characters
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*/
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#define CONFIG_ECMA_CHAR_ASCII (1) /* ASCII */
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#define CONFIG_ECMA_CHAR_UTF16 (2) /* UTF-16 */
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#ifndef CONFIG_ECMA_CHAR_ENCODING
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# define CONFIG_ECMA_CHAR_ENCODING CONFIG_ECMA_CHAR_ASCII
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#else /* CONFIG_ECMA_CHAR_ENCODING */
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# if (CONFIG_ECMA_CHAR_ENCODING != CONFIG_ECMA_CHAR_ASCII \
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&& CONFIG_ECMA_CHAR_ENCODING != CONFIG_ECMA_CHAR_UTF16)
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# error "ECMA-char encoding is configured incorrectly"
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# endif /* CONFIG_ECMA_CHAR_ENCODING != CONFIG_ECMA_CHAR_ASCII
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&& CONFIG_ECMA_CHAR_ENCODING != CONFIG_ECMA_CHAR_UTF16 */
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#endif /* !CONFIG_ECMA_CHAR_ENCODING */
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/**
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* Disable ECMA lookup cache
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*/
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// #define CONFIG_ECMA_LCACHE_DISABLE
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/**
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* Disable ECMA property hashmap
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*/
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// #define CONFIG_ECMA_PROPERTY_HASHMAP_DISABLE
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/**
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* Share of newly allocated since last GC objects among all currently allocated objects,
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* after achieving which, GC is started upon low severity try-give-memory-back requests.
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*
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* Share is calculated as the following:
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* 1.0 / CONFIG_ECMA_GC_NEW_OBJECTS_SHARE_TO_START_GC
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*/
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#define CONFIG_ECMA_GC_NEW_OBJECTS_SHARE_TO_START_GC (16)
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/**
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* Link Global Environment to an empty declarative lexical environment
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* instead of lexical environment bound to Global Object.
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*/
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// #define CONFIG_ECMA_GLOBAL_ENVIRONMENT_DECLARATIVE
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/**
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* Number of ecma values inlined into VM stack frame
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*/
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#define CONFIG_VM_STACK_FRAME_INLINED_VALUES_NUMBER (16)
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/**
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* Run GC after execution of each byte-code instruction
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*/
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// #define CONFIG_VM_RUN_GC_AFTER_EACH_OPCODE
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/**
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* Flag, indicating whether to enable parser-time byte-code optimizations
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*/
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#define CONFIG_PARSER_ENABLE_PARSE_TIME_BYTE_CODE_OPTIMIZER
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#endif /* !CONFIG_H */
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