mirror of
https://github.com/jerryscript-project/jerryscript.git
synced 2025-12-15 16:29:21 +00:00
0511091e8a
Since the project is now hosted at the JS Foundation we can move to unified copyright notices for the project. Starting with this commit all future contributions to the project should only carry the following copyright notice (except for third-party code which requires copyright information to be preserved): "Copyright JS Foundation and other contributors, http://js.foundation" (without the quotes) This avoids cluttering the codebase with contributor-specific copyright notices which have a higher maintenance overhead and tend to get outdated quickly. Also dropping the year from the copyright notices helps to avoid yearly code changes just to update the copyright notices. Note that each contributor still retains full copyright ownership of his/her contributions and the respective authorship is tracked very accurately via Git. JerryScript-DCO-1.0-Signed-off-by: Tilmann Scheller t.scheller@samsung.com
146 lines
4.4 KiB
C
146 lines
4.4 KiB
C
/* Copyright JS Foundation and other contributors, http://js.foundation
|
|
*
|
|
* 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 */
|