169 lines
5.2 KiB
C
169 lines
5.2 KiB
C
/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Xavier Leroy and Damien Doligez, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../LICENSE. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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#ifndef CAML_CONFIG_H
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#define CAML_CONFIG_H
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/* <include ../config/m.h> */
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/* <include ../config/s.h> */
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/* <private> */
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#include "../config/m.h"
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#include "../config/s.h"
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/* </private> */
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#ifndef CAML_NAME_SPACE
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#include "compatibility.h"
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#endif
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/* Types for signed chars, 32-bit integers, 64-bit integers,
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native integers (as wide as a pointer type) */
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typedef signed char schar;
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#if SIZEOF_PTR == SIZEOF_LONG
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/* Standard models: ILP32 or I32LP64 */
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typedef long intnat;
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typedef unsigned long uintnat;
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#define ARCH_INTNAT_PRINTF_FORMAT "l"
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#elif SIZEOF_PTR == SIZEOF_INT
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/* Hypothetical IP32L64 model */
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typedef int intnat;
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typedef unsigned int uintnat;
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#define ARCH_INTNAT_PRINTF_FORMAT ""
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#elif SIZEOF_PTR == 8 && defined(ARCH_INT64_TYPE)
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/* Win64 model: IL32LLP64 */
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typedef ARCH_INT64_TYPE intnat;
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typedef ARCH_UINT64_TYPE uintnat;
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#define ARCH_INTNAT_PRINTF_FORMAT ARCH_INT64_PRINTF_FORMAT
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#else
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#error "No integer type available to represent pointers"
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#endif
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#if SIZEOF_INT == 4
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typedef int int32;
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typedef unsigned int uint32;
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#define ARCH_INT32_PRINTF_FORMAT ""
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#elif SIZEOF_LONG == 4
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typedef long int32;
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typedef unsigned long uint32;
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#define ARCH_INT32_PRINTF_FORMAT "l"
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#elif SIZEOF_SHORT == 4
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typedef short int32;
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typedef unsigned short uint32;
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#define ARCH_INT32_PRINTF_FORMAT ""
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#else
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#error "No 32-bit integer type available"
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#endif
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#if defined(ARCH_INT64_TYPE)
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typedef ARCH_INT64_TYPE int64;
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typedef ARCH_UINT64_TYPE uint64;
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#else
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# ifdef ARCH_BIG_ENDIAN
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typedef struct { uint32 h, l; } uint64, int64;
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# else
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typedef struct { uint32 l, h; } uint64, int64;
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# endif
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#endif
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/* Endianness of floats */
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/* ARCH_FLOAT_ENDIANNESS encodes the byte order of doubles as follows:
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the value [0xabcdefgh] means that the least significant byte of the
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float is at byte offset [a], the next lsb at [b], ..., and the
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most significant byte at [h]. */
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#if defined(__arm__) && !defined(__ARM_EABI__)
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#define ARCH_FLOAT_ENDIANNESS 0x45670123
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#elif defined(ARCH_BIG_ENDIAN)
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#define ARCH_FLOAT_ENDIANNESS 0x76543210
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#else
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#define ARCH_FLOAT_ENDIANNESS 0x01234567
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#endif
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/* We use threaded code interpretation if the compiler provides labels
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as first-class values (GCC 2.x). */
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#if defined(__GNUC__) && __GNUC__ >= 2 && !defined(DEBUG) && !defined (SHRINKED_GNUC) && !defined(CAML_JIT)
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#define THREADED_CODE
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#endif
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/* Do not change this definition. */
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#define Page_size (1 << Page_log)
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/* Memory model parameters */
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/* The size of a page for memory management (in bytes) is [1 << Page_log].
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It must be a multiple of [sizeof (value)] and >= 8 and <= 20. */
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#define Page_log 12 /* A page is 4 kilobytes. */
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/* Initial size of stack (bytes). */
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#define Stack_size (4096 * sizeof(value))
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/* Minimum free size of stack (bytes); below that, it is reallocated. */
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#define Stack_threshold (256 * sizeof(value))
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/* Default maximum size of the stack (words). */
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#define Max_stack_def (1024 * 1024)
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/* Maximum size of a block allocated in the young generation (words). */
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/* Must be > 4 */
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#define Max_young_wosize 256
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/* Minimum size of the minor zone (words).
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This must be at least [Max_young_wosize + 1]. */
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#define Minor_heap_min 4096
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/* Maximum size of the minor zone (words).
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Must be greater than or equal to [Minor_heap_min].
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*/
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#define Minor_heap_max (1 << 28)
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/* Default size of the minor zone. (words) */
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#define Minor_heap_def 32768
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/* Minimum size increment when growing the heap (words).
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Must be a multiple of [Page_size / sizeof (value)]. */
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#define Heap_chunk_min (2 * Page_size / sizeof (value))
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/* Default size increment when growing the heap. (words)
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Must be a multiple of [Page_size / sizeof (value)].
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(Approx 512 Kb for a 32-bit platform, 1 Mb for a 64-bit platform.) */
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#define Heap_chunk_def (31 * Page_size)
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/* Default initial size of the major heap (words);
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same constraints as for Heap_chunk_def. */
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#define Init_heap_def (31 * Page_size)
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/* Default speed setting for the major GC. The heap will grow until
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the dead objects and the free list represent this percentage of the
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total size of live objects. */
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#define Percent_free_def 80
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/* Default setting for the compacter: 500%
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(i.e. trigger the compacter when 5/6 of the heap is free or garbage)
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This can be set quite high because the overhead is over-estimated
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when fragmentation occurs.
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*/
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#define Max_percent_free_def 500
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#endif /* CAML_CONFIG_H */
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