1627 lines
48 KiB
C
1627 lines
48 KiB
C
/*
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Copyright (c) 2016-2018 Chung, Hyung-Hwan. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "hcl-prv.h"
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#if defined(HCL_PROFILE_VM)
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#include <sys/time.h>
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#include <sys/resource.h> /* getrusage */
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#endif
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static struct
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{
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hcl_oow_t len;
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hcl_ooch_t ptr[20];
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hcl_syncode_t syncode;
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hcl_oow_t offset;
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} syminfo[] =
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{
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{ 3, { 'a','n','d' }, HCL_SYNCODE_AND, HCL_OFFSETOF(hcl_t,s_and) },
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{ 5, { 'b','r','e','a','k' }, HCL_SYNCODE_BREAK, HCL_OFFSETOF(hcl_t,s_break) },
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{ 5, { 'c','a','t','c','h' }, HCL_SYNCODE_CATCH, HCL_OFFSETOF(hcl_t,s_catch) },
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{ 5, { 'c','l','a','s','s' }, HCL_SYNCODE_CLASS, HCL_OFFSETOF(hcl_t,s_class) },
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{ 8, { 'c','o','n','t','i','n','u','e' }, HCL_SYNCODE_CONTINUE, HCL_OFFSETOF(hcl_t,s_continue) },
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{ 8, { 'd','e','f','c','l','a','s','s' }, HCL_SYNCODE_DEFCLASS, HCL_OFFSETOF(hcl_t,s_defclass) },
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{ 5, { 'd','e','f','u','n' }, HCL_SYNCODE_DEFUN, HCL_OFFSETOF(hcl_t,s_defun) },
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{ 2, { 'd','o' }, HCL_SYNCODE_DO, HCL_OFFSETOF(hcl_t,s_do) },
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{ 4, { 'e','l','i','f' }, HCL_SYNCODE_ELIF, HCL_OFFSETOF(hcl_t,s_elif) },
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{ 4, { 'e','l','s','e' }, HCL_SYNCODE_ELSE, HCL_OFFSETOF(hcl_t,s_else) },
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{ 3, { 'f','u','n' }, HCL_SYNCODE_FUN, HCL_OFFSETOF(hcl_t,s_fun) },
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{ 2, { 'i','f' }, HCL_SYNCODE_IF, HCL_OFFSETOF(hcl_t,s_if) },
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{ 2, { 'o','r' }, HCL_SYNCODE_OR, HCL_OFFSETOF(hcl_t,s_or) },
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{ 4, { 'p','l','u','s' }, HCL_SYNCODE_PLUS, HCL_OFFSETOF(hcl_t,s_plus) },
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{ 6, { 'r','e','t','u','r','n'}, HCL_SYNCODE_RETURN, HCL_OFFSETOF(hcl_t,s_return) },
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{ 16, { 'r','e','t','u','r','n','-','f','r','o','m','-','h','o','m','e'},
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HCL_SYNCODE_RETURN_FROM_HOME, HCL_OFFSETOF(hcl_t,s_return_from_home) },
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{ 3, { 's','e','t' }, HCL_SYNCODE_SET, HCL_OFFSETOF(hcl_t,s_set) },
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{ 5, { 's','e','t','-','r' }, HCL_SYNCODE_SET_R, HCL_OFFSETOF(hcl_t,s_set_r) },
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{ 5, { 't','h','r','o','w' }, HCL_SYNCODE_THROW, HCL_OFFSETOF(hcl_t,s_throw) },
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{ 3, { 't','r','y' }, HCL_SYNCODE_TRY, HCL_OFFSETOF(hcl_t,s_try) },
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{ 5, { 'u','n','t','i','l' }, HCL_SYNCODE_UNTIL, HCL_OFFSETOF(hcl_t,s_until) },
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{ 5, { 'w','h','i','l','e' }, HCL_SYNCODE_WHILE, HCL_OFFSETOF(hcl_t,s_while) }
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};
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/* ========================================================================= */
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/*
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* Apex......................
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* ^ ^ ^ : .......
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* | | | v v :
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* | | +------------------- Class .....
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* | | ^ ^
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* | +-------- NilObject ......: :
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* | ^........ nil :
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* Object ...........................:
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* ^
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* |
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*
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* The class hierarchy is roughly as follows:
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*
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* Apex
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* Class
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* NilObject
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* Object
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* Collection
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* IndexedCollection
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* FixedSizedCollection
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* Array
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* ByteArray
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* String
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* Symbol
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* Set
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* Dictionary
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* SystemDictionary
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* SymbolSet
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* Magnitude
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* Association
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* Character
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* Number
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* Integer
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* SmallInteger
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* LargeInteger
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* LargePositiveInteger
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* LargeNegativeInteger
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*
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* Apex has no instance variables.
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*
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*/
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struct kernel_class_info_t
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{
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const hcl_bch_t* name;
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int class_brand;
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int class_flags;
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int class_num_classvars;
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int class_spec_named_instvars;
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int class_spec_flags;
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int class_spec_indexed_type;
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hcl_oow_t offset;
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};
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typedef struct kernel_class_info_t kernel_class_info_t;
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static kernel_class_info_t kernel_classes[] =
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{
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/* --------------------------------------------------------------
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* Apex - proto-object with 1 class variable.
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* UndefinedObject - class for the nil object.
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* Object - top of all ordinary objects.
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* String
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* Symbol
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* Array
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* ByteArray
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* SymbolSet
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* Character
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* SmallIntger
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* -------------------------------------------------------------- */
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{ "Apex", 0,
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0,
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0,
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0,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_apex) },
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{ "UndefinedObject", HCL_BRAND_UNDEF,
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0,
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0,
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0,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_undefobj) },
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#define KCI_CLASS 2 /* index to the Class entry in this table */
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{ "Class", HCL_BRAND_CLASS,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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HCL_CLASS_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_INDEXED | HCL_CLASS_SPEC_FLAG_UNCOPYABLE,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_class) },
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#if 0
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{ "Interface",
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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HCL_INTERFACE_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_INDEXED | HCL_CLASS_SPEC_FLAG_UNCOPYABLE,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, _interface) },
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#endif
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{ "Object", 0,
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0,
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0,
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0,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_object) },
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{ "String", HCL_BRAND_STRING,
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0,
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0,
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0,
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HCL_CLASS_SPEC_FLAG_INDEXED,
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HCL_OBJ_TYPE_CHAR,
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HCL_OFFSETOF(hcl_t, c_string) },
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{ "Symbol", HCL_BRAND_SYMBOL,
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HCL_CLASS_SELFSPEC_FLAG_FINAL | HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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0,
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HCL_CLASS_SPEC_FLAG_INDEXED | HCL_CLASS_SPEC_FLAG_IMMUTABLE,
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HCL_OBJ_TYPE_CHAR,
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HCL_OFFSETOF(hcl_t, c_symbol) },
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{ "Array", HCL_BRAND_ARRAY,
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0,
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0,
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0,
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HCL_CLASS_SPEC_FLAG_INDEXED,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_array) },
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{ "ByteArray", HCL_BRAND_BYTE_ARRAY,
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0,
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0,
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0,
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HCL_CLASS_SPEC_FLAG_INDEXED,
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HCL_OBJ_TYPE_BYTE,
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HCL_OFFSETOF(hcl_t, c_byte_array) },
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/* A special incarnation of a dictionary that allows only a symbol as a value.
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* The value in bucket is a symbol while the value in a normal dictionary is a
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* pair(cons) that contains a key and a value. */
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{ "SymbolTable", HCL_BRAND_DIC, /* TODO: make this a special child class of Dictionary?? */
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0,
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0,
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HCL_DIC_NAMED_INSTVARS,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_symtab) },
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{ "Dictionary", HCL_BRAND_DIC,
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0,
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0,
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HCL_DIC_NAMED_INSTVARS,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_dictionary) },
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{ "Cons", HCL_BRAND_CONS,
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0,
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0,
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HCL_CONS_NAMED_INSTVARS,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_cons) },
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#if 0
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{ "Namespace",
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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HCL_NSDIC_NAMED_INSTVARS,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_namespace) },
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{ "PoolDictionary",
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0,
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0,
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HCL_DIC_NAMED_INSTVARS,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_pool_dictionary) },
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#endif
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{ "MethodDictionary", 0,
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0,
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0,
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HCL_DIC_NAMED_INSTVARS,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_method_dictionary) },
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#if 0
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{ "CompiledMethod",
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0,
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0,
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HCL_METHOD_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_INDEXED,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_method) },
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{ "MethodSignature",
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0,
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0,
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HCL_METHSIG_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_INDEXED,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_methsig) },
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#endif
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/* special function created with MAKE_FUNCTION in interactive mode
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* for execution of code fed and compiled. */
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{ "Function", HCL_BRAND_FUNCTION,
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0,
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0,
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HCL_FUNCTION_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_INDEXED,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_function) },
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#if 0
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{ "Primitive", HCL_BRAND_PRIM,
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0,
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0,
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HCL_PRIM_NAMED_INSTVARS,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_prim) },
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#endif
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{ "CompiledBlock", HCL_BRAND_BLOCK,
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0,
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0,
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HCL_BLOCK_NAMED_INSTVARS,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_block) },
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{ "MethodContext", 0,
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HCL_CLASS_SELFSPEC_FLAG_FINAL | HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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HCL_CONTEXT_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_INDEXED,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_method_context) },
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{ "BlockContext", HCL_BRAND_CONTEXT,
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HCL_CLASS_SELFSPEC_FLAG_FINAL | HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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HCL_CONTEXT_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_INDEXED,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_block_context) },
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{ "Process", HCL_BRAND_PROCESS,
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HCL_CLASS_SELFSPEC_FLAG_FINAL | HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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HCL_PROCESS_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_INDEXED | HCL_CLASS_SPEC_FLAG_UNCOPYABLE,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_process) },
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{ "Semaphore", HCL_BRAND_SEMAPHORE,
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0,
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0,
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HCL_SEMAPHORE_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_UNCOPYABLE,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_semaphore) },
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{ "SemaphoreGroup", HCL_BRAND_SEMAPHORE_GROUP,
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0,
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0,
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HCL_SEMAPHORE_GROUP_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_UNCOPYABLE,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_semaphore_group) },
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{ "ProcessScheduler", HCL_BRAND_PROCESS_SCHEDULER,
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HCL_CLASS_SELFSPEC_FLAG_FINAL | HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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HCL_PROCESS_SCHEDULER_NAMED_INSTVARS,
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HCL_CLASS_SPEC_FLAG_UNCOPYABLE,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_process_scheduler) },
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{ "Error", 0,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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0,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_error) },
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{ "True", HCL_BRAND_TRUE,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED | HCL_CLASS_SELFSPEC_FLAG_FINAL,
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0,
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0,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_true) },
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{ "False", HCL_BRAND_FALSE,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED | HCL_CLASS_SELFSPEC_FLAG_FINAL,
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0,
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0,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_false) },
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/* TOOD: what is a proper spec for Character and SmallInteger?
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* If the fixed part is 0, its instance must be an object of 0 payload fields.
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* Does this make sense? */
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{ "Character", HCL_BRAND_CHARACTER,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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0,
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0,
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HCL_OBJ_TYPE_OOP,
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HCL_OFFSETOF(hcl_t, c_character) },
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{ "SmallInteger", HCL_BRAND_SMOOI,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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0,
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0,
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HCL_OBJ_TYPE_OOP,
|
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HCL_OFFSETOF(hcl_t, c_small_integer) },
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{ "LargePositiveInteger", 0,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
|
|
0,
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|
0,
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HCL_CLASS_SPEC_FLAG_INDEXED | HCL_CLASS_SPEC_FLAG_IMMUTABLE,
|
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HCL_OBJ_TYPE_LIWORD,
|
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HCL_OFFSETOF(hcl_t, c_large_positive_integer) },
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|
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{ "LargeNegativeInteger", 0,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
|
|
0,
|
|
0,
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|
HCL_CLASS_SPEC_FLAG_INDEXED | HCL_CLASS_SPEC_FLAG_IMMUTABLE,
|
|
HCL_OBJ_TYPE_LIWORD,
|
|
HCL_OFFSETOF(hcl_t, c_large_negative_integer) },
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|
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{ "FixedPointDecimal", HCL_BRAND_FPDEC,
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|
HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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|
HCL_FPDEC_NAMED_INSTVARS,
|
|
HCL_CLASS_SPEC_FLAG_IMMUTABLE,
|
|
HCL_OBJ_TYPE_OOP,
|
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HCL_OFFSETOF(hcl_t, c_fixed_point_decimal) },
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{ "SmallPointer", HCL_BRAND_SMPTR,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
|
|
0,
|
|
0,
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|
0,
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|
HCL_OBJ_TYPE_OOP,
|
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HCL_OFFSETOF(hcl_t, c_small_pointer) },
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{ "LargePointer", 0,
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HCL_CLASS_SELFSPEC_FLAG_LIMITED,
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0,
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1, /* #word(1) */
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HCL_CLASS_SPEC_FLAG_IMMUTABLE | HCL_CLASS_SPEC_FLAG_INDEXED,
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HCL_OBJ_TYPE_WORD,
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HCL_OFFSETOF(hcl_t, c_large_pointer) },
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{ "System", 0,
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0,
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5, /* asyncsg, gcfin_sem, gcfin_should_exit, ossig_pid, shr */
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0,
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0,
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HCL_OBJ_TYPE_OOP,
|
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HCL_OFFSETOF(hcl_t, c_system) }
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};
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/* ========================================================================= */
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|
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static void compact_symbol_table (hcl_t* hcl, hcl_oop_t _nil)
|
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{
|
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hcl_oop_char_t symbol;
|
|
hcl_oow_t i, x, y, z;
|
|
hcl_oow_t bucket_size, index;
|
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hcl_ooi_t tally;
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|
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#if defined(HCL_SUPPORT_GC_DURING_IGNITION)
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if (!hcl->symtab) return; /* symbol table has not been created */
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#endif
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|
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/* the symbol table doesn't allow more data items than HCL_SMOOI_MAX.
|
|
* so hcl->symtab->tally must always be a small integer */
|
|
HCL_ASSERT (hcl, HCL_OOP_IS_SMOOI(hcl->symtab->tally));
|
|
tally = HCL_OOP_TO_SMOOI(hcl->symtab->tally);
|
|
HCL_ASSERT (hcl, tally >= 0); /* it must not be less than 0 */
|
|
if (tally <= 0) return;
|
|
|
|
/* NOTE: in theory, the bucket size can be greater than HCL_SMOOI_MAX
|
|
* as it is an internal header field and is of an unsigned type */
|
|
bucket_size = HCL_OBJ_GET_SIZE(hcl->symtab->bucket);
|
|
|
|
for (index = 0; index < bucket_size; )
|
|
{
|
|
if (HCL_OBJ_GET_FLAGS_MOVED(hcl->symtab->bucket->slot[index]))
|
|
{
|
|
index++;
|
|
continue;
|
|
}
|
|
|
|
HCL_ASSERT (hcl, hcl->symtab->bucket->slot[index] != _nil);
|
|
|
|
for (i = 0, x = index, y = index; i < bucket_size; i++)
|
|
{
|
|
y = (y + 1) % bucket_size;
|
|
|
|
/* done if the slot at the current hash index is _nil */
|
|
if (hcl->symtab->bucket->slot[y] == _nil) break;
|
|
|
|
/* get the natural hash index for the data in the slot
|
|
* at the current hash index */
|
|
symbol = (hcl_oop_char_t)hcl->symtab->bucket->slot[y];
|
|
|
|
HCL_ASSERT (hcl, HCL_IS_SYMBOL(hcl, symbol));
|
|
|
|
z = hcl_hash_oochars(symbol->slot, HCL_OBJ_GET_SIZE(symbol)) % bucket_size;
|
|
|
|
/* move an element if necessary */
|
|
if ((y > x && (z <= x || z > y)) ||
|
|
(y < x && (z <= x && z > y)))
|
|
{
|
|
hcl->symtab->bucket->slot[x] = hcl->symtab->bucket->slot[y];
|
|
x = y;
|
|
}
|
|
}
|
|
|
|
hcl->symtab->bucket->slot[x] = _nil;
|
|
tally--;
|
|
}
|
|
|
|
HCL_ASSERT (hcl, tally >= 0);
|
|
HCL_ASSERT (hcl, tally <= HCL_SMOOI_MAX);
|
|
hcl->symtab->tally = HCL_SMOOI_TO_OOP(tally);
|
|
}
|
|
|
|
hcl_oow_t hcl_getobjpayloadbytes (hcl_t* hcl, hcl_oop_t oop)
|
|
{
|
|
hcl_oow_t nbytes_aligned;
|
|
|
|
if (HCL_OBJ_GET_FLAGS_TRAILER(oop))
|
|
{
|
|
hcl_oow_t nbytes;
|
|
|
|
/* only an OOP object can have the trailer.
|
|
*
|
|
* | _flags |
|
|
* | _size | <-- if it's 3
|
|
* | _class |
|
|
* | X |
|
|
* | X |
|
|
* | X |
|
|
* | Y | <-- it may exist if EXTRA is set in _flags.
|
|
* | Z | <-- if TRAILER is set, it is the number of bytes in the trailer
|
|
* | | | | |
|
|
*/
|
|
HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_TYPE(oop) == HCL_OBJ_TYPE_OOP);
|
|
HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_UNIT(oop) == HCL_SIZEOF(hcl_oow_t));
|
|
HCL_ASSERT (hcl, HCL_OBJ_GET_FLAGS_EXTRA(oop) == 0); /* no 'extra' for an OOP object */
|
|
|
|
nbytes = HCL_OBJ_BYTESOF(oop) + HCL_SIZEOF(hcl_oow_t) + HCL_OBJ_GET_TRAILER_SIZE(oop);
|
|
nbytes_aligned = HCL_ALIGN(nbytes, HCL_SIZEOF(hcl_oop_t));
|
|
}
|
|
else
|
|
{
|
|
/* calculate the payload size in bytes */
|
|
nbytes_aligned = HCL_ALIGN(HCL_OBJ_BYTESOF(oop), HCL_SIZEOF(hcl_oop_t));
|
|
}
|
|
|
|
return nbytes_aligned;
|
|
}
|
|
|
|
|
|
/* ----------------------------------------------------------------------- */
|
|
|
|
#if 0
|
|
static HCL_INLINE void gc_ms_mark (hcl_t* hcl, hcl_oop_t oop)
|
|
{
|
|
hcl_oow_t i, sz;
|
|
|
|
#if defined(HCL_SUPPORT_GC_DURING_IGNITION)
|
|
if (!oop) return;
|
|
#endif
|
|
|
|
if (!HCL_OOP_IS_POINTER(oop)) return;
|
|
if (HCL_OBJ_GET_FLAGS_MOVED(oop)) return; /* already marked */
|
|
|
|
HCL_OBJ_SET_FLAGS_MOVED(oop, 1); /* mark */
|
|
|
|
/*gc_ms_mark (hcl, (hcl_oop_t)HCL_OBJ_GET_CLASS(oop));*/ /* TODO: remove recursion */
|
|
|
|
if (HCL_OBJ_GET_FLAGS_TYPE(oop) == HCL_OBJ_TYPE_OOP)
|
|
{
|
|
hcl_oow_t size, i;
|
|
|
|
/* is it really better to use a flag bit in the header to
|
|
* determine that it is an instance of process? */
|
|
if (HCL_UNLIKELY(HCL_OBJ_GET_FLAGS_PROC(oop)))
|
|
{
|
|
/* the stack in a process object doesn't need to be
|
|
* scanned in full. the slots above the stack pointer
|
|
* are garbages. */
|
|
size = HCL_PROCESS_NAMED_INSTVARS + HCL_OOP_TO_SMOOI(((hcl_oop_process_t)oop)->sp) + 1;
|
|
HCL_ASSERT (hcl, size <= HCL_OBJ_GET_SIZE(oop));
|
|
}
|
|
else
|
|
{
|
|
size = HCL_OBJ_GET_SIZE(oop);
|
|
}
|
|
|
|
for (i = 0; i < size; i++)
|
|
{
|
|
hcl_oop_t tmp = HCL_OBJ_GET_OOP_VAL(oop, i);
|
|
if (HCL_OOP_IS_POINTER(tmp)) gc_ms_mark (hcl, tmp); /* TODO: no resursion */
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
static HCL_INLINE void gc_ms_mark_object (hcl_t* hcl, hcl_oop_t oop)
|
|
{
|
|
#if defined(HCL_SUPPORT_GC_DURING_IGNITION)
|
|
if (!oop) return;
|
|
#endif
|
|
if (!HCL_OOP_IS_POINTER(oop) || HCL_OBJ_GET_FLAGS_MOVED(oop)) return; /* non-pointer or already marked */
|
|
|
|
HCL_OBJ_SET_FLAGS_MOVED(oop, 1); /* mark */
|
|
HCL_ASSERT (hcl, hcl->gci.stack.len < hcl->gci.stack.capa);
|
|
hcl->gci.stack.ptr[hcl->gci.stack.len++] = oop; /* push */
|
|
if (hcl->gci.stack.len > hcl->gci.stack.max) hcl->gci.stack.max = hcl->gci.stack.len;
|
|
}
|
|
|
|
static HCL_INLINE void gc_ms_scan_stack (hcl_t* hcl)
|
|
{
|
|
hcl_oop_t oop;
|
|
|
|
while (hcl->gci.stack.len > 0)
|
|
{
|
|
oop = hcl->gci.stack.ptr[--hcl->gci.stack.len];
|
|
|
|
gc_ms_mark_object (hcl, (hcl_oop_t)HCL_OBJ_GET_CLASS(oop));
|
|
|
|
if (HCL_OBJ_GET_FLAGS_TYPE(oop) == HCL_OBJ_TYPE_OOP)
|
|
{
|
|
hcl_ooi_t i, ll;
|
|
|
|
/* is it really better to use a flag bit in the header to
|
|
* determine that it is an instance of process? */
|
|
/* if (HCL_UNLIKELY(HCL_OBJ_GET_FLAGS_PROC(oop))) */
|
|
if (HCL_OBJ_GET_FLAGS_BRAND(oop) == HCL_BRAND_PROCESS) /* TODO: use a class or make this a special bit???*/
|
|
{
|
|
hcl_oop_process_t proc;
|
|
|
|
/* the stack in a process object doesn't need to be
|
|
* scanned in full. the slots above the stack pointer
|
|
* are garbages. */
|
|
proc = (hcl_oop_process_t)oop;
|
|
|
|
/* the fixed part */
|
|
ll = HCL_PROCESS_NAMED_INSTVARS;
|
|
for (i = 0; i < ll; i++) gc_ms_mark_object (hcl, HCL_OBJ_GET_OOP_VAL(oop, i));
|
|
|
|
/* stack */
|
|
ll = HCL_OOP_TO_SMOOI(proc->sp);
|
|
|
|
HCL_ASSERT (hcl, ll < (hcl_ooi_t)(HCL_OBJ_GET_SIZE(oop) - HCL_PROCESS_NAMED_INSTVARS));
|
|
for (i = 0; i <= ll; i++) gc_ms_mark_object (hcl, proc->slot[i]);
|
|
/* exception stack */
|
|
ll = HCL_OOP_TO_SMOOI(proc->exsp);
|
|
HCL_ASSERT (hcl, ll < (hcl_ooi_t)(HCL_OBJ_GET_SIZE(oop) - HCL_PROCESS_NAMED_INSTVARS));
|
|
for (i = HCL_OOP_TO_SMOOI(proc->st) + 1; i <= ll; i++) gc_ms_mark_object (hcl, proc->slot[i]);
|
|
/* class stack */
|
|
ll = HCL_OOP_TO_SMOOI(proc->clsp);
|
|
HCL_ASSERT (hcl, ll < (hcl_ooi_t)(HCL_OBJ_GET_SIZE(oop) - HCL_PROCESS_NAMED_INSTVARS));
|
|
for (i = HCL_OOP_TO_SMOOI(proc->exst) + 1; i <= ll; i++) gc_ms_mark_object (hcl, proc->slot[i]);
|
|
}
|
|
else
|
|
{
|
|
ll = HCL_OBJ_GET_SIZE(oop);
|
|
for (i = 0; i < ll; i++) gc_ms_mark_object (hcl, HCL_OBJ_GET_OOP_VAL(oop, i));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static HCL_INLINE void gc_ms_mark (hcl_t* hcl, hcl_oop_t oop)
|
|
{
|
|
gc_ms_mark_object (hcl, oop);
|
|
gc_ms_scan_stack (hcl);
|
|
}
|
|
#endif
|
|
|
|
static HCL_INLINE void gc_ms_mark_roots (hcl_t* hcl)
|
|
{
|
|
hcl_oow_t i;
|
|
#if defined(ENABLE_GCFIN)
|
|
hcl_oow_t gcfin_count;
|
|
#endif
|
|
hcl_cb_t* cb;
|
|
|
|
#if defined(HCL_PROFILE_VM)
|
|
struct rusage ru;
|
|
hcl_ntime_t rut;
|
|
getrusage(RUSAGE_SELF, &ru);
|
|
HCL_INIT_NTIME (&rut, ru.ru_utime.tv_sec, HCL_USEC_TO_NSEC(ru.ru_utime.tv_usec));
|
|
#endif
|
|
|
|
if (hcl->processor && hcl->processor->active)
|
|
{
|
|
HCL_ASSERT (hcl, (hcl_oop_t)hcl->processor != hcl->_nil);
|
|
HCL_ASSERT (hcl, (hcl_oop_t)hcl->processor->active != hcl->_nil);
|
|
|
|
/* commit the stack pointer to the active process because
|
|
* gc needs the correct stack pointer for a process object */
|
|
hcl->processor->active->sp = HCL_SMOOI_TO_OOP(hcl->sp);
|
|
}
|
|
|
|
gc_ms_mark (hcl, hcl->_undef);
|
|
gc_ms_mark (hcl, hcl->_nil);
|
|
gc_ms_mark (hcl, hcl->_true);
|
|
gc_ms_mark (hcl, hcl->_false);
|
|
|
|
for (i = 0; i < HCL_COUNTOF(syminfo); i++)
|
|
{
|
|
gc_ms_mark (hcl, *(hcl_oop_t*)((hcl_uint8_t*)hcl + syminfo[i].offset));
|
|
}
|
|
|
|
for (i = 0; i < HCL_COUNTOF(kernel_classes); i++)
|
|
{
|
|
gc_ms_mark (hcl, *(hcl_oop_t*)((hcl_uint8_t*)hcl + kernel_classes[i].offset));
|
|
}
|
|
|
|
gc_ms_mark (hcl, (hcl_oop_t)hcl->sysdic);
|
|
gc_ms_mark (hcl, (hcl_oop_t)hcl->processor);
|
|
gc_ms_mark (hcl, (hcl_oop_t)hcl->nil_process);
|
|
|
|
|
|
for (i = 0; i < hcl->code.lit.len; i++)
|
|
{
|
|
/* the literal array ia a NGC object. but the literal objects
|
|
* pointed by the elements of this array must be gabage-collected. */
|
|
gc_ms_mark (hcl, ((hcl_oop_oop_t)hcl->code.lit.arr)->slot[i]);
|
|
}
|
|
gc_ms_mark (hcl, hcl->p.e);
|
|
|
|
for (i = 0; i < hcl->sem_list_count; i++)
|
|
{
|
|
gc_ms_mark (hcl, (hcl_oop_t)hcl->sem_list[i]);
|
|
}
|
|
|
|
for (i = 0; i < hcl->sem_heap_count; i++)
|
|
{
|
|
gc_ms_mark (hcl, (hcl_oop_t)hcl->sem_heap[i]);
|
|
}
|
|
|
|
for (i = 0; i < hcl->sem_io_tuple_count; i++)
|
|
{
|
|
if (hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_INPUT])
|
|
gc_ms_mark (hcl, (hcl_oop_t)hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_INPUT]);
|
|
if (hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_OUTPUT])
|
|
gc_ms_mark (hcl, (hcl_oop_t)hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_OUTPUT]);
|
|
}
|
|
|
|
#if defined(ENABLE_GCFIN)
|
|
gc_ms_mark (hcl, (hcl_oop_t)hcl->sem_gcfin);
|
|
#endif
|
|
|
|
for (i = 0; i < hcl->proc_map_capa; i++)
|
|
{
|
|
gc_ms_mark (hcl, hcl->proc_map[i]);
|
|
}
|
|
|
|
for (i = 0; i < hcl->volat_count; i++)
|
|
{
|
|
gc_ms_mark (hcl, *hcl->volat_stack[i]);
|
|
}
|
|
|
|
if (hcl->initial_context) gc_ms_mark (hcl, (hcl_oop_t)hcl->initial_context);
|
|
if (hcl->active_context) gc_ms_mark (hcl, (hcl_oop_t)hcl->active_context);
|
|
if (hcl->initial_function) gc_ms_mark (hcl, (hcl_oop_t)hcl->initial_function);
|
|
if (hcl->active_function) gc_ms_mark (hcl, (hcl_oop_t)hcl->active_function);
|
|
|
|
if (hcl->last_retv) gc_ms_mark (hcl, hcl->last_retv);
|
|
|
|
/*hcl_rbt_walk (&hcl->modtab, call_module_gc, hcl); */
|
|
|
|
for (cb = hcl->cblist; cb; cb = cb->next)
|
|
{
|
|
if (cb->gc) cb->gc (hcl);
|
|
}
|
|
|
|
#if defined(ENABLE_GCFIN)
|
|
gcfin_count = move_finalizable_objects(hcl); /* mark finalizable objects */
|
|
#endif
|
|
|
|
if (hcl->symtab)
|
|
{
|
|
compact_symbol_table (hcl, hcl->_nil); /* delete symbol table entries that are not marked */
|
|
#if 0
|
|
gc_ms_mark (hcl, (hcl_oop_t)hcl->symtab); /* mark the symbol table */
|
|
#else
|
|
HCL_OBJ_SET_FLAGS_MOVED(hcl->symtab, 1); /* mark */
|
|
HCL_OBJ_SET_FLAGS_MOVED(hcl->symtab->bucket, 1); /* mark */
|
|
#endif
|
|
}
|
|
|
|
#if defined(ENABLE_GCFIN)
|
|
if (gcfin_count > 0) hcl->sem_gcfin_sigreq = 1;
|
|
#endif
|
|
|
|
if (hcl->active_function) hcl->active_code = HCL_FUNCTION_GET_CODE_BYTE(hcl->active_function); /* update hcl->active_code */
|
|
|
|
#if defined(HCL_PROFILE_VM)
|
|
getrusage(RUSAGE_SELF, &ru);
|
|
HCL_SUB_NTIME_SNS (&rut, &rut, ru.ru_utime.tv_sec, HCL_USEC_TO_NSEC(ru.ru_utime.tv_usec));
|
|
HCL_SUB_NTIME (&hcl->gci.stat.mark, &hcl->gci.stat.mark, &rut); /* do subtraction because rut is negative */
|
|
#endif
|
|
}
|
|
|
|
void hcl_gc_ms_sweep_lazy (hcl_t* hcl, hcl_oow_t allocsize)
|
|
{
|
|
hcl_gchdr_t* curr, * next, * prev;
|
|
hcl_oop_t obj;
|
|
hcl_oow_t freed_size;
|
|
|
|
#if defined(HCL_PROFILE_VM)
|
|
struct rusage ru;
|
|
hcl_ntime_t rut;
|
|
getrusage(RUSAGE_SELF, &ru);
|
|
HCL_INIT_NTIME (&rut, ru.ru_utime.tv_sec, HCL_USEC_TO_NSEC(ru.ru_utime.tv_usec));
|
|
#endif
|
|
|
|
if (!hcl->gci.ls.curr) goto done;
|
|
|
|
freed_size = 0;
|
|
|
|
prev = hcl->gci.ls.prev;
|
|
curr = hcl->gci.ls.curr;
|
|
|
|
while (curr)
|
|
{
|
|
next = curr->next;
|
|
obj = (hcl_oop_t)(curr + 1);
|
|
|
|
if (HCL_OBJ_GET_FLAGS_MOVED(obj)) /* if marked */
|
|
{
|
|
HCL_OBJ_SET_FLAGS_MOVED (obj, 0); /* unmark */
|
|
prev = curr;
|
|
}
|
|
else
|
|
{
|
|
hcl_oow_t objsize;
|
|
|
|
if (prev) prev->next = next;
|
|
else hcl->gci.b = next;
|
|
|
|
objsize = HCL_SIZEOF(hcl_obj_t) + hcl_getobjpayloadbytes(hcl, obj);
|
|
freed_size += objsize;
|
|
hcl->gci.bsz -= objsize;
|
|
hcl_freeheapmem (hcl, hcl->heap, curr); /* destroy */
|
|
|
|
/*if (freed_size > allocsize)*/ /* TODO: can it secure large enough space? */
|
|
if (objsize == allocsize)
|
|
{
|
|
hcl->gci.ls.prev = prev;
|
|
hcl->gci.ls.curr = next; /* let the next lazy sweeping begin at this point */
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
curr = next;
|
|
}
|
|
|
|
hcl->gci.ls.curr = HCL_NULL;
|
|
|
|
done:
|
|
#if defined(HCL_PROFILE_VM)
|
|
getrusage(RUSAGE_SELF, &ru);
|
|
HCL_SUB_NTIME_SNS (&rut, &rut, ru.ru_utime.tv_sec, HCL_USEC_TO_NSEC(ru.ru_utime.tv_usec));
|
|
HCL_SUB_NTIME (&hcl->gci.stat.sweep, &hcl->gci.stat.sweep, &rut); /* do subtraction because rut is negative */
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
static HCL_INLINE void gc_ms_sweep (hcl_t* hcl)
|
|
{
|
|
hcl_gchdr_t* curr, * next, * prev;
|
|
hcl_oop_t obj;
|
|
|
|
#if defined(HCL_PROFILE_VM)
|
|
struct rusage ru;
|
|
hcl_ntime_t rut;
|
|
getrusage(RUSAGE_SELF, &ru);
|
|
HCL_INIT_NTIME (&rut, ru.ru_utime.tv_sec, HCL_USEC_TO_NSEC(ru.ru_utime.tv_usec));
|
|
#endif
|
|
|
|
prev = HCL_NULL;
|
|
curr = hcl->gci.b;
|
|
while (curr)
|
|
{
|
|
next = curr->next;
|
|
obj = (hcl_oop_t)(curr + 1);
|
|
|
|
if (HCL_OBJ_GET_FLAGS_MOVED(obj)) /* if marked */
|
|
{
|
|
HCL_OBJ_SET_FLAGS_MOVED (obj, 0); /* unmark */
|
|
prev = curr;
|
|
}
|
|
else
|
|
{
|
|
if (prev) prev->next = next;
|
|
else hcl->gci.b = next;
|
|
|
|
hcl->gci.bsz -= HCL_SIZEOF(hcl_obj_t) + hcl_getobjpayloadbytes(hcl, obj);
|
|
hcl_freeheapmem (hcl, hcl->heap, curr); /* destroy */
|
|
}
|
|
|
|
curr = next;
|
|
}
|
|
|
|
hcl->gci.ls.curr = HCL_NULL;
|
|
|
|
#if defined(HCL_PROFILE_VM)
|
|
getrusage(RUSAGE_SELF, &ru);
|
|
HCL_SUB_NTIME_SNS (&rut, &rut, ru.ru_utime.tv_sec, HCL_USEC_TO_NSEC(ru.ru_utime.tv_usec));
|
|
HCL_SUB_NTIME (&hcl->gci.stat.sweep, &hcl->gci.stat.sweep, &rut); /* do subtraction because rut is negative */
|
|
#endif
|
|
}
|
|
|
|
void hcl_gc (hcl_t* hcl, int full)
|
|
{
|
|
if (hcl->gci.lazy_sweep) hcl_gc_ms_sweep_lazy (hcl, HCL_TYPE_MAX(hcl_oow_t));
|
|
|
|
HCL_LOG1 (hcl, HCL_LOG_GC | HCL_LOG_INFO, "Starting GC (mark-sweep) - gci.bsz = %zu\n", hcl->gci.bsz);
|
|
|
|
hcl->gci.stack.len = 0;
|
|
/*hcl->gci.stack.max = 0;*/
|
|
gc_ms_mark_roots (hcl);
|
|
|
|
if (!full && hcl->gci.lazy_sweep)
|
|
{
|
|
/* set the lazy sweeping pointer to the head of the allocated blocks.
|
|
* hawk_allocbytes() updates hcl->gci.ls.prev if it is called while
|
|
* hcl->gci.ls.curr stays at hcl->gci.b */
|
|
hcl->gci.ls.prev = HCL_NULL;
|
|
hcl->gci.ls.curr = hcl->gci.b;
|
|
}
|
|
else
|
|
{
|
|
gc_ms_sweep (hcl);
|
|
}
|
|
|
|
HCL_LOG2 (hcl, HCL_LOG_GC | HCL_LOG_INFO, "Finished GC (mark-sweep) - gci.bsz = %zu, gci.stack.max %zu\n", hcl->gci.bsz, hcl->gci.stack.max);
|
|
}
|
|
|
|
hcl_oop_t hcl_moveoop (hcl_t* hcl, hcl_oop_t oop)
|
|
{
|
|
if (oop) gc_ms_mark (hcl, oop);
|
|
return oop;
|
|
}
|
|
|
|
#if 0
|
|
void hcl_gc (hcl_t* hcl)
|
|
{
|
|
/*
|
|
* move a referenced object to the new heap.
|
|
* inspect the fields of the moved object in the new heap.
|
|
* move objects pointed to by the fields to the new heap.
|
|
* finally perform some tricky symbol table clean-up.
|
|
*/
|
|
hcl_uint8_t* ptr;
|
|
hcl_heap_t* tmp;
|
|
hcl_oop_t old_nil;
|
|
hcl_oow_t i;
|
|
hcl_cb_t* cb;
|
|
|
|
if (hcl->active_context)
|
|
{
|
|
HCL_ASSERT (hcl, (hcl_oop_t)hcl->processor != hcl->_nil);
|
|
HCL_ASSERT (hcl, (hcl_oop_t)hcl->processor->active != hcl->_nil);
|
|
HCL_ASSERT (hcl, HCL_IS_PROCESS(hcl, hcl->processor->active));
|
|
/* commit the stack pointer to the active process */
|
|
hcl->processor->active->sp = HCL_SMOOI_TO_OOP(hcl->sp);
|
|
/* commit the instruction pointer to the active context */
|
|
hcl->active_context->ip = HCL_SMOOI_TO_OOP(hcl->ip);
|
|
}
|
|
|
|
HCL_LOG4 (hcl, HCL_LOG_GC | HCL_LOG_INFO,
|
|
"Starting GC curheap base %p ptr %p newheap base %p ptr %p\n",
|
|
hcl->curheap->base, hcl->curheap->ptr, hcl->newheap->base, hcl->newheap->ptr);
|
|
|
|
/* TODO: allocate common objects like _nil and the root dictionary
|
|
* in the permanant heap. minimize moving around */
|
|
old_nil = hcl->_nil;
|
|
|
|
/* move _nil and the root object table */
|
|
hcl->_undef = hcl_moveoop(hcl, hcl->_undef);
|
|
hcl->_nil = hcl_moveoop(hcl, hcl->_nil);
|
|
hcl->_true = hcl_moveoop(hcl, hcl->_true);
|
|
hcl->_false = hcl_moveoop(hcl, hcl->_false);
|
|
|
|
for (i = 0; i < HCL_COUNTOF(syminfo); i++)
|
|
{
|
|
hcl_oop_t tmp;
|
|
tmp = *(hcl_oop_t*)((hcl_uint8_t*)hcl + syminfo[i].offset);
|
|
tmp = hcl_moveoop(hcl, tmp);
|
|
*(hcl_oop_t*)((hcl_uint8_t*)hcl + syminfo[i].offset) = tmp;
|
|
}
|
|
|
|
for (i = 0; i < HCL_COUNTOF(kernel_classes); i++)
|
|
{
|
|
hcl_oop_t tmp;
|
|
tmp = *(hcl_oop_t*)((hcl_uint8_t*)hcl + kernel_classes[i].offset);
|
|
tmp = hcl_moveoop(hcl, tmp);
|
|
*(hcl_oop_t*)((hcl_uint8_t*)hcl + kernel_classes[i].offset) = tmp;
|
|
}
|
|
|
|
hcl->sysdic = (hcl_oop_dic_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->sysdic);
|
|
hcl->processor = (hcl_oop_process_scheduler_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->processor);
|
|
hcl->nil_process = (hcl_oop_process_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->nil_process);
|
|
|
|
for (i = 0; i < hcl->code.lit.len; i++)
|
|
{
|
|
/* the literal array ia a NGC object. but the literal objects
|
|
* pointed by the elements of this array must be gabage-collected. */
|
|
((hcl_oop_oop_t)hcl->code.lit.arr)->slot[i] =
|
|
hcl_moveoop(hcl, ((hcl_oop_oop_t)hcl->code.lit.arr)->slot[i]);
|
|
}
|
|
|
|
hcl->p.e = hcl_moveoop(hcl, hcl->p.e);
|
|
|
|
for (i = 0; i < hcl->sem_list_count; i++)
|
|
{
|
|
hcl->sem_list[i] = (hcl_oop_semaphore_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->sem_list[i]);
|
|
}
|
|
|
|
for (i = 0; i < hcl->sem_heap_count; i++)
|
|
{
|
|
hcl->sem_heap[i] = (hcl_oop_semaphore_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->sem_heap[i]);
|
|
}
|
|
|
|
for (i = 0; i < hcl->sem_io_tuple_count; i++)
|
|
{
|
|
if (hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_INPUT])
|
|
hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_INPUT] = (hcl_oop_semaphore_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_INPUT]);
|
|
if (hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_OUTPUT])
|
|
hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_OUTPUT] = (hcl_oop_semaphore_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->sem_io_tuple[i].sem[HCL_SEMAPHORE_IO_TYPE_OUTPUT]);
|
|
}
|
|
|
|
#if defined(ENABLE_GCFIN)
|
|
hcl->sem_gcfin = (hcl_oop_semaphore_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->sem_gcfin);
|
|
#endif
|
|
|
|
for (i = 0; i < hcl->proc_map_capa; i++)
|
|
{
|
|
hcl->proc_map[i] = hcl_moveoop(hcl, hcl->proc_map[i]);
|
|
}
|
|
|
|
for (i = 0; i < hcl->volat_count; i++)
|
|
{
|
|
*hcl->volat_stack[i] = hcl_moveoop(hcl, *hcl->volat_stack[i]);
|
|
}
|
|
|
|
if (hcl->initial_context)
|
|
hcl->initial_context = (hcl_oop_context_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->initial_context);
|
|
if (hcl->active_context)
|
|
hcl->active_context = (hcl_oop_context_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->active_context);
|
|
if (hcl->initial_function)
|
|
hcl->initial_function = (hcl_oop_function_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->initial_function);
|
|
if (hcl->active_function)
|
|
hcl->active_function = (hcl_oop_function_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->active_function);
|
|
|
|
if (hcl->last_retv) hcl->last_retv = hcl_moveoop(hcl, hcl->last_retv);
|
|
|
|
for (cb = hcl->cblist; cb; cb = cb->next)
|
|
{
|
|
if (cb->gc) cb->gc (hcl);
|
|
}
|
|
|
|
/* scan the new heap to move referenced objects */
|
|
ptr = (hcl_uint8_t*)HCL_ALIGN((hcl_uintptr_t)hcl->newheap->base, HCL_SIZEOF(hcl_oop_t));
|
|
ptr = scan_new_heap(hcl, ptr);
|
|
|
|
/* traverse the symbol table for unreferenced symbols.
|
|
* if the symbol has not moved to the new heap, the symbol
|
|
* is not referenced by any other objects than the symbol
|
|
* table itself */
|
|
compact_symbol_table (hcl, old_nil);
|
|
|
|
/* move the symbol table itself */
|
|
hcl->symtab = (hcl_oop_dic_t)hcl_moveoop(hcl, (hcl_oop_t)hcl->symtab);
|
|
|
|
/* scan the new heap again from the end position of
|
|
* the previous scan to move referenced objects by
|
|
* the symbol table. */
|
|
ptr = scan_new_heap (hcl, ptr);
|
|
|
|
/* the contents of the current heap is not needed any more.
|
|
* reset the upper bound to the base. don't forget to align the heap
|
|
* pointer to the OOP size. See hcl_makeheap() also */
|
|
hcl->curheap->ptr = (hcl_uint8_t*)HCL_ALIGN(((hcl_uintptr_t)hcl->curheap->base), HCL_SIZEOF(hcl_oop_t));
|
|
|
|
/* swap the current heap and old heap */
|
|
tmp = hcl->curheap;
|
|
hcl->curheap = hcl->newheap;
|
|
hcl->newheap = tmp;
|
|
|
|
/*
|
|
if (hcl->symtab && HCL_LOG_ENABLED(hcl, HCL_LOG_GC | HCL_LOG_DEBUG))
|
|
{
|
|
hcl_oow_t index;
|
|
hcl_oop_oop_t buc;
|
|
HCL_LOG0 (hcl, HCL_LOG_GC | HCL_LOG_DEBUG, "--------- SURVIVING SYMBOLS IN GC ----------\n");
|
|
buc = (hcl_oop_oop_t) hcl->symtab->bucket;
|
|
for (index = 0; index < HCL_OBJ_GET_SIZE(buc); index++)
|
|
{
|
|
if ((hcl_oop_t)buc->slot[index] != hcl->_nil)
|
|
{
|
|
HCL_LOG1 (hcl, HCL_LOG_GC | HCL_LOG_DEBUG, "\t%O\n", buc->slot[index]);
|
|
}
|
|
}
|
|
HCL_LOG0 (hcl, HCL_LOG_GC | HCL_LOG_DEBUG, "--------------------------------------------\n");
|
|
}
|
|
*/
|
|
|
|
if (hcl->active_function) hcl->active_code = HCL_FUNCTION_GET_CODE_BYTE(hcl->active_function); /* update hcl->active_code */
|
|
|
|
/* TODO: include some gc statstics like number of live objects, gc performance, etc */
|
|
HCL_LOG4 (hcl, HCL_LOG_GC | HCL_LOG_INFO,
|
|
"Finished GC curheap base %p ptr %p newheap base %p ptr %p\n",
|
|
hcl->curheap->base, hcl->curheap->ptr, hcl->newheap->base, hcl->newheap->ptr);
|
|
}
|
|
#endif
|
|
|
|
void hcl_pushvolat (hcl_t* hcl, hcl_oop_t* oop_ptr)
|
|
{
|
|
/* if you have too many temporaries pushed, something must be wrong.
|
|
* change your code not to exceede the stack limit */
|
|
HCL_ASSERT (hcl, hcl->volat_count < HCL_COUNTOF(hcl->volat_stack));
|
|
hcl->volat_stack[hcl->volat_count++] = oop_ptr;
|
|
}
|
|
|
|
void hcl_popvolat (hcl_t* hcl)
|
|
{
|
|
HCL_ASSERT (hcl, hcl->volat_count > 0);
|
|
hcl->volat_count--;
|
|
}
|
|
|
|
void hcl_popvolats (hcl_t* hcl, hcl_oow_t count)
|
|
{
|
|
HCL_ASSERT (hcl, hcl->volat_count >= count);
|
|
hcl->volat_count -= count;
|
|
}
|
|
|
|
|
|
hcl_oop_t hcl_shallowcopy (hcl_t* hcl, hcl_oop_t oop)
|
|
{
|
|
if (HCL_OOP_IS_POINTER(oop) && HCL_OBJ_GET_FLAGS_BRAND(oop) != HCL_BRAND_SYMBOL)
|
|
{
|
|
hcl_oop_t z;
|
|
hcl_oow_t total_bytes;
|
|
|
|
total_bytes = HCL_SIZEOF(hcl_obj_t) + hcl_getobjpayloadbytes(hcl, oop);
|
|
|
|
hcl_pushvolat (hcl, &oop);
|
|
z = (hcl_oop_t)hcl_allocbytes(hcl, total_bytes);
|
|
hcl_popvolat(hcl);
|
|
|
|
HCL_MEMCPY (z, oop, total_bytes);
|
|
return z;
|
|
}
|
|
|
|
return oop;
|
|
}
|
|
|
|
/* ========================================================================= */
|
|
|
|
/* -----------------------------------------------------------------------
|
|
* BOOTSTRAPPER
|
|
* ----------------------------------------------------------------------- */
|
|
|
|
static hcl_oop_class_t alloc_kernel_class (hcl_t* hcl, int class_flags, hcl_oow_t num_classvars, hcl_oow_t spec, int ibrand)
|
|
{
|
|
hcl_oop_class_t c;
|
|
#if 0
|
|
hcl_ooi_t cspec;
|
|
#endif
|
|
|
|
c = (hcl_oop_class_t)hcl_allocoopobj(hcl, HCL_BRAND_CLASS, HCL_CLASS_NAMED_INSTVARS + num_classvars);
|
|
if (!c) return HCL_NULL;
|
|
|
|
HCL_OBJ_SET_FLAGS_KERNEL (c, HCL_OBJ_FLAGS_KERNEL_IMMATURE);
|
|
|
|
#if 0 /* TODO extend the flags and uncomment this part */
|
|
cspec = kernel_classes[KCI_CLASS].class_spec_flags;
|
|
if (HCL_CLASS_SPEC_IS_IMMUTABLE(cspec)) HCL_OBJ_SET_FLAGS_RDONLY (c, 1); /* just for completeness of code. will never be true as it's not defined in the kernel class info table */
|
|
if (HCL_CLASS_SPEC_IS_UNCOPYABLE(cspec)) HCL_OBJ_SET_FLAGS_UNCOPYABLE (c, 1); /* class itself is uncopyable */
|
|
#endif
|
|
|
|
HCL_OBJ_SET_CLASS (c, (hcl_oop_t)hcl->c_class);
|
|
c->spec = HCL_SMOOI_TO_OOP(spec);
|
|
c->selfspec = HCL_SMOOI_TO_OOP(HCL_CLASS_SELFSPEC_MAKE(num_classvars, 0, class_flags));
|
|
c->nivars = HCL_SMOOI_TO_OOP(0); /* TODO: encode it into spec? */
|
|
c->nivars_super = HCL_SMOOI_TO_OOP(0); /* TODO: encode it into spec? */
|
|
c->ibrand = HCL_SMOOI_TO_OOP(ibrand);
|
|
|
|
return c;
|
|
}
|
|
|
|
static int ignite_1 (hcl_t* hcl)
|
|
{
|
|
hcl_oow_t i;
|
|
|
|
/*
|
|
* Create fundamental class objects with some fields mis-initialized yet.
|
|
* Such fields include 'superclass', 'subclasses', 'name', etc.
|
|
*/
|
|
HCL_ASSERT (hcl, hcl->_nil != HCL_NULL);
|
|
HCL_ASSERT (hcl, HCL_OBJ_GET_CLASS(hcl->_nil) == HCL_NULL);
|
|
|
|
HCL_ASSERT (hcl, hcl->c_class == HCL_NULL);
|
|
/* --------------------------------------------------------------
|
|
* Class
|
|
* The instance of Class can have indexed instance variables
|
|
* which are actually class variables.
|
|
* -------------------------------------------------------------- */
|
|
if (HCL_LIKELY(!hcl->c_class))
|
|
{
|
|
hcl->c_class = alloc_kernel_class(
|
|
hcl, kernel_classes[KCI_CLASS].class_flags,
|
|
kernel_classes[KCI_CLASS].class_num_classvars,
|
|
HCL_CLASS_SPEC_MAKE(kernel_classes[KCI_CLASS].class_spec_named_instvars,
|
|
kernel_classes[KCI_CLASS].class_spec_flags,
|
|
kernel_classes[KCI_CLASS].class_spec_indexed_type),
|
|
kernel_classes[KCI_CLASS].class_brand);
|
|
if (HCL_UNLIKELY(!hcl->c_class))
|
|
{
|
|
const hcl_ooch_t* orgmsg = hcl_backuperrmsg(hcl);
|
|
hcl_seterrbfmt (hcl, HCL_ERRNUM(hcl), "unable to allocate %hs - %js", kernel_classes[KCI_CLASS].name, orgmsg);
|
|
return -1;
|
|
}
|
|
|
|
HCL_ASSERT (hcl, HCL_OBJ_GET_CLASS(hcl->c_class) == HCL_NULL);
|
|
HCL_OBJ_SET_CLASS (hcl->c_class, (hcl_oop_t)hcl->c_class);
|
|
}
|
|
|
|
for (i = 0; i < HCL_COUNTOF(kernel_classes); i++)
|
|
{
|
|
hcl_oop_class_t tmp;
|
|
|
|
if (i == KCI_CLASS) continue; /* skip Class as it's created above */
|
|
|
|
tmp = alloc_kernel_class(
|
|
hcl, kernel_classes[i].class_flags,
|
|
kernel_classes[i].class_num_classvars,
|
|
HCL_CLASS_SPEC_MAKE(kernel_classes[i].class_spec_named_instvars,
|
|
kernel_classes[i].class_spec_flags,
|
|
kernel_classes[i].class_spec_indexed_type),
|
|
kernel_classes[i].class_brand);
|
|
if (HCL_UNLIKELY(!tmp))
|
|
{
|
|
const hcl_ooch_t* orgmsg = hcl_backuperrmsg(hcl);
|
|
hcl_seterrbfmt (hcl, HCL_ERRNUM(hcl), "unable to allocate %hs - %js", kernel_classes[i].name, orgmsg);
|
|
return -1;
|
|
}
|
|
*(hcl_oop_class_t*)((hcl_uint8_t*)hcl + kernel_classes[i].offset) = tmp;
|
|
}
|
|
|
|
#if 0
|
|
/* an instance of a method class stores byte codes in the trailer space.
|
|
* unlike other classes with trailer size set, the size of the trailer
|
|
* space is not really determined by the trailer size set in the class.
|
|
* the compiler determines the actual size of the trailer space depending
|
|
* on the byte codes generated. i should set the following fields to avoid
|
|
* confusion at the GC phase. */
|
|
hcl->c_method->trsize = HCL_SMOOI_TO_OOP(0);
|
|
hcl->c_method->trgc = HCL_SMPTR_TO_OOP(0);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ignite_2 (hcl_t* hcl)
|
|
{
|
|
hcl_oop_t tmp;
|
|
#if 0
|
|
int old_igniting = hcl->igniting;
|
|
#endif
|
|
|
|
/* Create 'true' and 'false objects */
|
|
if (HCL_LIKELY(!hcl->_true))
|
|
{
|
|
hcl->_true = hcl_instantiate(hcl, hcl->c_true, HCL_NULL, 0);
|
|
if (HCL_UNLIKELY(!hcl->_true)) goto oops;
|
|
}
|
|
|
|
if (HCL_LIKELY(!hcl->_false))
|
|
{
|
|
hcl->_false = hcl_instantiate(hcl, hcl->c_false, HCL_NULL, 0);
|
|
if (HCL_UNLIKELY(!hcl->_false)) goto oops;
|
|
}
|
|
|
|
#if 0
|
|
/* Prevent the object instantions in the permspace.
|
|
*
|
|
* 1. The symbol table is big and it may resize after ignition.
|
|
* the resizing operation will migrate the obejct out of the
|
|
* permspace. The space taken by the symbol table and the
|
|
* system dictionary is wasted. I'd rather allocate these
|
|
* in the normal space.
|
|
*
|
|
* 2. For compact_symbol_table() to work properly, hcl_gc() must not
|
|
* scan the symbol table before it executes compact_symbol_table().
|
|
* since hcl_gc() scans the entire perspace, it naturally gets to
|
|
* hcl->symtab, which causes problems in compact_symbol_table().
|
|
* I may reserve a special space for only the symbol table
|
|
* to overcome this issue.
|
|
*
|
|
* For now, let's just allocate the symbol table and the system dictionary
|
|
* in the normal space */
|
|
hcl->igniting = 0;
|
|
#endif
|
|
|
|
if (HCL_LIKELY(!hcl->symtab))
|
|
{
|
|
/* Create the symbol table - values in the bucket are limited to symbols only */
|
|
tmp = hcl_instantiate(hcl, hcl->c_symtab, HCL_NULL, 0);
|
|
if (HCL_UNLIKELY(!tmp)) goto oops;
|
|
hcl->symtab = (hcl_oop_dic_t)tmp;
|
|
hcl->symtab->tally = HCL_SMOOI_TO_OOP(0);
|
|
}
|
|
|
|
if (HCL_LIKELY((hcl_oop_t)hcl->symtab->bucket == hcl->_nil))
|
|
{
|
|
/* It's important to assign the result of hcl_instantiate() to a temporary
|
|
* variable first and then assign it to hcl->symtab->bucket.
|
|
* The pointer 'hcl->symtab; can change in hcl_instantiate() and the
|
|
* target address of assignment may get set before hcl_instantiate()
|
|
* is called. */
|
|
HCL_ASSERT (hcl, hcl->option.dfl_symtab_size > 0);
|
|
tmp = hcl_instantiate(hcl, hcl->c_array, HCL_NULL, hcl->option.dfl_symtab_size);
|
|
if (HCL_UNLIKELY(!tmp)) goto oops; /* TODO: delete hcl->symtab instad of this separate initialization of the bucket??? */
|
|
hcl->symtab->bucket = (hcl_oop_oop_t)tmp;
|
|
}
|
|
|
|
#if 0
|
|
/* Create the system dictionary */
|
|
tmp = (hcl_oop_t)hcl_makensdic(hcl, hcl->_namespace, hcl->option.dfl_sysdic_size);
|
|
if (!tmp) return -1;
|
|
hcl->sysdic = (hcl_oop_nsdic_t)tmp;
|
|
#else
|
|
if (HCL_LIKELY(!hcl->sysdic))
|
|
{
|
|
tmp = hcl_instantiate(hcl, hcl->c_dictionary, HCL_NULL, 0);
|
|
if (HCL_UNLIKELY(!tmp)) goto oops;
|
|
hcl->sysdic = (hcl_oop_dic_t)tmp;
|
|
hcl->sysdic->tally = HCL_SMOOI_TO_OOP(0);
|
|
}
|
|
|
|
if (HCL_LIKELY((hcl_oop_t)hcl->sysdic->bucket == hcl->_nil))
|
|
{
|
|
/* It's important to assign the result of hcl_instantiate() to a temporary
|
|
* variable first and then assign it to hcl->symtab->bucket.
|
|
* The pointer 'hcl->symtab; can change in hcl_instantiate() and the
|
|
* target address of assignment may get set before hcl_instantiate()
|
|
* is called. */
|
|
tmp = hcl_instantiate(hcl, hcl->c_array, HCL_NULL, hcl->option.dfl_sysdic_size);
|
|
if (HCL_UNLIKELY(!tmp)) goto oops;
|
|
hcl->sysdic->bucket = (hcl_oop_oop_t)tmp;
|
|
}
|
|
#endif
|
|
|
|
#if 0
|
|
hcl->igniting = old_igniting; /* back to the permspace */
|
|
#endif
|
|
|
|
if (HCL_LIKELY(!hcl->nil_process))
|
|
{
|
|
/* Create a nil process used to simplify nil check in GC.
|
|
* only accessible by VM. not exported via the global dictionary. */
|
|
tmp = (hcl_oop_t)hcl_instantiate(hcl, hcl->c_process, HCL_NULL, 0);
|
|
if (HCL_UNLIKELY(!tmp)) goto oops;
|
|
hcl->nil_process = (hcl_oop_process_t)tmp;
|
|
hcl->nil_process->id = HCL_SMOOI_TO_OOP(-1);
|
|
hcl->nil_process->state = HCL_SMOOI_TO_OOP(HCL_PROCESS_STATE_TERMINATED);
|
|
#if 0
|
|
hcl->nil_process->perr = HCL_ERROR_TO_OOP(HCL_ENOERR);
|
|
hcl->nil_process->perrmsg = hcl->_nil;
|
|
#endif
|
|
|
|
/* unusable stack */
|
|
hcl->nil_process->sp = HCL_SMOOI_TO_OOP(-1);
|
|
hcl->nil_process->st = HCL_SMOOI_TO_OOP(-1);
|
|
/* unusable exception stack */
|
|
hcl->nil_process->exsp = HCL_SMOOI_TO_OOP(-1);
|
|
hcl->nil_process->exst = HCL_SMOOI_TO_OOP(-1);
|
|
/* unusable class stack */
|
|
hcl->nil_process->clsp = HCL_SMOOI_TO_OOP(-1);
|
|
hcl->nil_process->clst = HCL_SMOOI_TO_OOP(-1);
|
|
}
|
|
|
|
if (HCL_LIKELY(!hcl->processor))
|
|
{
|
|
/* Create a process scheduler */
|
|
tmp = (hcl_oop_t)hcl_instantiate(hcl, hcl->c_process_scheduler, HCL_NULL, 0);
|
|
if (HCL_UNLIKELY(!tmp)) goto oops;
|
|
hcl->processor = (hcl_oop_process_scheduler_t)tmp;
|
|
hcl->processor->active = hcl->nil_process;
|
|
hcl->processor->total_count = HCL_SMOOI_TO_OOP(0);
|
|
hcl->processor->runnable.count = HCL_SMOOI_TO_OOP(0);
|
|
hcl->processor->suspended.count = HCL_SMOOI_TO_OOP(0);
|
|
}
|
|
|
|
return 0;
|
|
|
|
oops:
|
|
return -1;
|
|
}
|
|
|
|
static int ignite_3 (hcl_t* hcl)
|
|
{
|
|
/* Register kernel classes manually created so far to the system dictionary */
|
|
#if 0
|
|
static hcl_ooch_t str_processor[] = { 'P', 'r', 'o', 'c', 'e', 's', 's', 'o', 'r' };
|
|
static hcl_ooch_t str_dicnew[] = { 'n', 'e', 'w', ':' };
|
|
static hcl_ooch_t str_dicputassoc[] = { '_','_','p', 'u', 't', '_', 'a', 's', 's', 'o', 'c', ':' };
|
|
static hcl_ooch_t str_does_not_understand[] = { 'd', 'o', 'e', 's', 'N', 'o', 't', 'U', 'n', 'd', 'e', 'r', 's', 't', 'a', 'n', 'd', ':' };
|
|
static hcl_ooch_t str_primitive_failed[] = { 'p', 'r', 'i', 'm', 'i', 't', 'i', 'v', 'e', 'F', 'a', 'i', 'l', 'e', 'd' };
|
|
static hcl_ooch_t str_unwindto_return[] = { 'u', 'n', 'w', 'i', 'n', 'd', 'T', 'o', ':', 'r', 'e', 't', 'u', 'r', 'n', ':' };
|
|
#endif
|
|
|
|
hcl_oow_t i;
|
|
hcl_oop_t sym;
|
|
hcl_oop_class_t cls;
|
|
|
|
for (i = 0; i < HCL_COUNTOF(kernel_classes); i++)
|
|
{
|
|
sym = hcl_makesymbolwithbcstr(hcl, kernel_classes[i].name);
|
|
if (HCL_UNLIKELY(!sym)) return -1;
|
|
|
|
cls = *(hcl_oop_class_t*)((hcl_uint8_t*)hcl + kernel_classes[i].offset);
|
|
HCL_STORE_OOP (hcl, (hcl_oop_t*)&cls->name, sym);
|
|
#if 0
|
|
HCL_STORE_OOP (hcl, (hcl_oop_t*)&cls->nsup, (hcl_oop_t)hcl->sysdic);
|
|
#endif
|
|
|
|
if (!hcl_putatsysdic(hcl, sym, (hcl_oop_t)cls)) return -1;
|
|
}
|
|
|
|
#if 0
|
|
/* Attach the system dictionary to the nsdic field of the System class */
|
|
HCL_STORE_OOP (hcl, (hcl_oop_t*)&hcl->_system->nsdic, (hcl_oop_t)hcl->sysdic);
|
|
/* Set the name field of the system dictionary */
|
|
HCL_STORE_OOP (hcl, (hcl_oop_t*)&hcl->sysdic->name, (hcl_oop_t)hcl->_system->name);
|
|
/* Set the owning class field of the system dictionary, it's circular here */
|
|
HCL_STORE_OOP (hcl, (hcl_oop_t*)&hcl->sysdic->nsup, (hcl_oop_t)hcl->_system);
|
|
|
|
/* Make the process scheduler avaialble as the global name 'Processor' */
|
|
sym = hcl_makesymbol(hcl, str_processor, HCL_COUNTOF(str_processor));
|
|
if (!sym) return -1;
|
|
if (!hcl_putatsysdic(hcl, sym, (hcl_oop_t)hcl->processor)) return -1;
|
|
|
|
sym = hcl_makesymbol(hcl, str_dicnew, HCL_COUNTOF(str_dicnew));
|
|
if (!sym) return -1;
|
|
hcl->dicnewsym = (hcl_oop_char_t)sym;
|
|
|
|
sym = hcl_makesymbol(hcl, str_dicputassoc, HCL_COUNTOF(str_dicputassoc));
|
|
if (!sym) return -1;
|
|
hcl->dicputassocsym = (hcl_oop_char_t)sym;
|
|
|
|
sym = hcl_makesymbol(hcl, str_does_not_understand, HCL_COUNTOF(str_does_not_understand));
|
|
if (!sym) return -1;
|
|
hcl->does_not_understand_sym = (hcl_oop_char_t)sym;
|
|
|
|
sym = hcl_makesymbol(hcl, str_primitive_failed, HCL_COUNTOF(str_primitive_failed));
|
|
if (!sym) return -1;
|
|
hcl->primitive_failed_sym = (hcl_oop_char_t)sym;
|
|
|
|
sym = hcl_makesymbol(hcl, str_unwindto_return, HCL_COUNTOF(str_unwindto_return));
|
|
if (!sym) return -1;
|
|
hcl->unwindto_return_sym = (hcl_oop_char_t)sym;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int make_kernel_objs (hcl_t* hcl)
|
|
{
|
|
/* make_kernel_objs() creates a chain of classes as well as some key objects
|
|
* for initial bootstrapping. when the objects are loaded from an image file,
|
|
* this function is skipped */
|
|
|
|
#if 0
|
|
hcl->igniting = 1;
|
|
#endif
|
|
if (HCL_LIKELY(!hcl->_undef))
|
|
{ /* TODO: create it as nogc */
|
|
hcl->_undef = hcl_hatchundef(hcl);
|
|
if (HCL_UNLIKELY(!hcl->_undef)) goto oops;
|
|
}
|
|
|
|
if (HCL_LIKELY(!hcl->_nil))
|
|
{ /* TODO: create it as nogc? */
|
|
hcl->_nil = hcl_hatchnil(hcl);
|
|
if (HCL_UNLIKELY(!hcl->_nil)) goto oops;
|
|
}
|
|
|
|
if (ignite_1(hcl) <= -1) goto oops;
|
|
|
|
/* ready to set the class of object created prior to class creation in ignite_1() */
|
|
HCL_OBJ_SET_CLASS (hcl->_nil, (hcl_oop_t)hcl->c_undefobj);
|
|
HCL_OBJ_SET_CLASS (hcl->_undef, (hcl_oop_t)hcl->c_undefobj);
|
|
|
|
if (ignite_2(hcl) <= -1) goto oops;
|
|
|
|
if (ignite_3(hcl) <= -1) goto oops;
|
|
|
|
/* TODO: scan the heap. and fix the class of objects using brand if the class is NULL */
|
|
|
|
#if 0
|
|
hcl->igniting = 0;
|
|
#endif
|
|
return 0;
|
|
|
|
oops:
|
|
#if 0
|
|
hcl>igniting = 0;
|
|
#endif
|
|
return -1;
|
|
}
|
|
|
|
int hcl_ignite (hcl_t* hcl, hcl_oow_t heapsize)
|
|
{
|
|
hcl_oow_t i;
|
|
|
|
if (!hcl->heap)
|
|
{
|
|
hcl->heap = hcl_makeheap(hcl, heapsize);
|
|
if (HCL_UNLIKELY(!hcl->heap)) return -1;
|
|
}
|
|
|
|
if (make_kernel_objs(hcl) <= -1) return -1;
|
|
|
|
HCL_ASSERT (hcl, hcl->_true != HCL_NULL);
|
|
HCL_ASSERT (hcl, hcl->_false != HCL_NULL);
|
|
|
|
if (!hcl->symtab)
|
|
{
|
|
hcl->symtab = (hcl_oop_dic_t)hcl_makedic(hcl, hcl->option.dfl_symtab_size);
|
|
if (HCL_UNLIKELY(!hcl->symtab)) goto oops;
|
|
}
|
|
|
|
if (!hcl->sysdic)
|
|
{
|
|
hcl->sysdic = (hcl_oop_dic_t)hcl_makedic(hcl, hcl->option.dfl_sysdic_size);
|
|
if (HCL_UNLIKELY(!hcl->sysdic)) goto oops;
|
|
}
|
|
|
|
/* symbol table available now. symbols can be created */
|
|
for (i = 0; i < HCL_COUNTOF(syminfo); i++)
|
|
{
|
|
hcl_oop_t tmp;
|
|
|
|
tmp = hcl_makesymbol(hcl, syminfo[i].ptr, syminfo[i].len);
|
|
if (HCL_UNLIKELY(!tmp)) goto oops;
|
|
|
|
HCL_OBJ_SET_FLAGS_SYNCODE (tmp, syminfo[i].syncode);
|
|
*(hcl_oop_t*)((hcl_uint8_t*)hcl + syminfo[i].offset) = tmp;
|
|
}
|
|
|
|
if (!hcl->nil_process)
|
|
{
|
|
/* Create a nil process used to simplify nil check in GC.
|
|
* only accessible by VM. not exported via the global dictionary. */
|
|
hcl->nil_process = (hcl_oop_process_t)hcl_allocoopobj(hcl, HCL_BRAND_PROCESS, HCL_PROCESS_NAMED_INSTVARS);
|
|
if (HCL_UNLIKELY(!hcl->nil_process)) goto oops;
|
|
|
|
/* unusable stack */
|
|
hcl->nil_process->sp = HCL_SMOOI_TO_OOP(-1);
|
|
hcl->nil_process->st = HCL_SMOOI_TO_OOP(-1);
|
|
/* unusable exception stack */
|
|
hcl->nil_process->exsp = HCL_SMOOI_TO_OOP(-1);
|
|
hcl->nil_process->exst = HCL_SMOOI_TO_OOP(-1);
|
|
/* unusable class stack */
|
|
hcl->nil_process->clsp = HCL_SMOOI_TO_OOP(-1);
|
|
hcl->nil_process->clst = HCL_SMOOI_TO_OOP(-1);
|
|
}
|
|
|
|
if (!hcl->processor)
|
|
{
|
|
hcl->processor = (hcl_oop_process_scheduler_t)hcl_allocoopobj(hcl, HCL_BRAND_PROCESS_SCHEDULER, HCL_PROCESS_SCHEDULER_NAMED_INSTVARS);
|
|
if (HCL_UNLIKELY(!hcl->processor)) goto oops;
|
|
hcl->processor->active = hcl->nil_process;
|
|
hcl->processor->total_count = HCL_SMOOI_TO_OOP(0);
|
|
hcl->processor->runnable.count = HCL_SMOOI_TO_OOP(0);
|
|
hcl->processor->suspended.count = HCL_SMOOI_TO_OOP(0);
|
|
|
|
/* commit the sp field of the initial active context to hcl->sp */
|
|
hcl->sp = HCL_OOP_TO_SMOOI(hcl->processor->active->sp);
|
|
}
|
|
|
|
/* TODO: move this initialization to hcl_init? */
|
|
if (hcl_brewcode(hcl, &hcl->code) <= -1) goto oops;
|
|
|
|
hcl->p.e = hcl->_nil;
|
|
return 0;
|
|
|
|
oops:
|
|
return -1;
|
|
}
|
|
|
|
hcl_syncode_t hcl_getsyncodebyoocs_noseterr (hcl_t* hcl, const hcl_oocs_t* name)
|
|
{
|
|
hcl_oow_t i;
|
|
for (i = 0; i < HCL_COUNTOF(syminfo); i++)
|
|
{
|
|
if (hcl_comp_oochars(syminfo[i].ptr, syminfo[i].len, name->ptr, name->len) == 0)
|
|
return syminfo[i].syncode;
|
|
}
|
|
return HCL_SYNCODE_NONE; /* indicates no syntax code found */
|
|
}
|
|
|
|
hcl_syncode_t hcl_getsyncode_noseterr (hcl_t* hcl, const hcl_ooch_t* ptr, const hcl_oow_t len)
|
|
{
|
|
hcl_oow_t i;
|
|
for (i = 0; i < HCL_COUNTOF(syminfo); i++)
|
|
{
|
|
if (hcl_comp_oochars(syminfo[i].ptr, syminfo[i].len, ptr, len) == 0)
|
|
return syminfo[i].syncode;
|
|
}
|
|
return HCL_SYNCODE_NONE; /* indicates no syntax code found */
|
|
}
|
|
|
|
const hcl_ooch_t* hcl_getsyncodename_noseterr (hcl_t* hcl, hcl_syncode_t syncode)
|
|
{
|
|
hcl_oow_t i;
|
|
for (i = 0; i < HCL_COUNTOF(syminfo); i++)
|
|
{
|
|
if (syncode == syminfo[i].syncode) return syminfo[i].ptr;
|
|
}
|
|
return HCL_NULL;
|
|
}
|