1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2000-2016. All Rights Reserved.
*
* 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.
*
* %CopyrightEnd%
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include "sys.h"
#include "erl_vm.h"
#include "global.h"
#include "erl_map.h"
#include <stdlib.h>
#include <stdio.h>
void
erts_set_literal_tag(Eterm *term, Eterm *hp_start, Eterm hsz)
{
#ifdef TAG_LITERAL_PTR
Eterm *hp_end, *hp;
hp_end = hp_start + hsz;
hp = hp_start;
while (hp < hp_end) {
switch (primary_tag(*hp)) {
case TAG_PRIMARY_BOXED:
case TAG_PRIMARY_LIST:
*hp |= TAG_LITERAL_PTR;
break;
case TAG_PRIMARY_HEADER:
if (header_is_thing(*hp)) {
hp += thing_arityval(*hp);
}
break;
default:
break;
}
hp++;
}
if (is_boxed(*term) || is_list(*term))
*term |= TAG_LITERAL_PTR;
#endif
}
void
erts_term_init(void)
{
#ifdef ERTS_ORDINARY_REF_MARKER
/* Ordinary and magic references of same size... */
ErtsRefThing ref_thing;
ERTS_CT_ASSERT(ERTS_ORDINARY_REF_MARKER == ~((Uint32)0));
ref_thing.m.header = ERTS_REF_THING_HEADER;
ref_thing.m.mb = (ErtsMagicBinary *) ~((UWord) 3);
ref_thing.m.next = (struct erl_off_heap_header *) ~((UWord) 3);
if (ref_thing.o.marker == ERTS_ORDINARY_REF_MARKER)
ERTS_INTERNAL_ERROR("Cannot differentiate between magic and ordinary references");
ERTS_CT_ASSERT(offsetof(ErtsORefThing,marker) != 0);
ERTS_CT_ASSERT(sizeof(ErtsORefThing) == sizeof(ErtsMRefThing));
# ifdef ERTS_MAGIC_REF_THING_HEADER
# error Magic ref thing header should not have been defined...
# endif
#else
/* Ordinary and magic references of different sizes... */
# ifndef ERTS_MAGIC_REF_THING_HEADER
# error Magic ref thing header should have been defined...
# endif
ERTS_CT_ASSERT(sizeof(ErtsORefThing) != sizeof(ErtsMRefThing));
#endif
ERTS_CT_ASSERT(ERTS_REF_THING_SIZE*sizeof(Eterm) == sizeof(ErtsORefThing));
ERTS_CT_ASSERT(ERTS_MAGIC_REF_THING_SIZE*sizeof(Eterm) == sizeof(ErtsMRefThing));
}
/*
* XXX: define NUMBER_CODE() here when new representation is used
*/
#if ET_DEBUG
#define ET_DEFINE_CHECKED(FUNTY,FUN,ARGTY,PRECOND) \
FUNTY checked_##FUN(ARGTY x, const char *file, unsigned line) \
{ \
ET_ASSERT(PRECOND(x),file,line); \
return _unchecked_##FUN(x); \
}
ET_DEFINE_CHECKED(Eterm,make_boxed,const Eterm*,_is_taggable_pointer);
ET_DEFINE_CHECKED(int,is_boxed,Eterm,!is_header);
ET_DEFINE_CHECKED(Eterm*,boxed_val,Wterm,_boxed_precond);
ET_DEFINE_CHECKED(Eterm,make_list,const Eterm*,_is_taggable_pointer);
ET_DEFINE_CHECKED(int,is_not_list,Eterm,!is_header);
ET_DEFINE_CHECKED(Eterm*,list_val,Wterm,_list_precond);
ET_DEFINE_CHECKED(Uint,unsigned_val,Eterm,is_small);
ET_DEFINE_CHECKED(Sint,signed_val,Eterm,is_small);
ET_DEFINE_CHECKED(Uint,atom_val,Eterm,is_atom);
ET_DEFINE_CHECKED(Uint,header_arity,Eterm,is_header);
ET_DEFINE_CHECKED(Uint,arityval,Eterm,is_sane_arity_value);
ET_DEFINE_CHECKED(Uint,thing_arityval,Eterm,is_thing);
ET_DEFINE_CHECKED(Uint,thing_subtag,Eterm,is_thing);
ET_DEFINE_CHECKED(Eterm*,binary_val,Wterm,is_binary);
ET_DEFINE_CHECKED(Eterm*,fun_val,Wterm,is_fun);
ET_DEFINE_CHECKED(int,bignum_header_is_neg,Eterm,_is_bignum_header);
ET_DEFINE_CHECKED(Eterm,bignum_header_neg,Eterm,_is_bignum_header);
ET_DEFINE_CHECKED(Uint,bignum_header_arity,Eterm,_is_bignum_header);
ET_DEFINE_CHECKED(Eterm*,big_val,Wterm,is_big);
ET_DEFINE_CHECKED(Eterm*,float_val,Wterm,is_float);
ET_DEFINE_CHECKED(Eterm*,tuple_val,Wterm,is_tuple);
ET_DEFINE_CHECKED(struct erl_node_*,internal_pid_node,Eterm,is_internal_pid);
ET_DEFINE_CHECKED(struct erl_node_*,internal_port_node,Eterm,is_internal_port);
ET_DEFINE_CHECKED(Eterm*,internal_ref_val,Wterm,is_internal_ref);
ET_DEFINE_CHECKED(Uint32*,internal_magic_ref_numbers,Wterm,is_internal_magic_ref);
ET_DEFINE_CHECKED(Uint32*,internal_ordinary_ref_numbers,Wterm,is_internal_ordinary_ref);
ET_DEFINE_CHECKED(struct erl_node_*,internal_ref_node,Eterm,is_internal_ref);
ET_DEFINE_CHECKED(Eterm*,external_val,Wterm,is_external);
ET_DEFINE_CHECKED(Uint,external_data_words,Wterm,is_external);
ET_DEFINE_CHECKED(Uint,external_pid_data_words,Wterm,is_external_pid);
ET_DEFINE_CHECKED(Uint,external_pid_data,Wterm,is_external_pid);
ET_DEFINE_CHECKED(struct erl_node_*,external_pid_node,Wterm,is_external_pid);
ET_DEFINE_CHECKED(Uint,external_port_data_words,Wterm,is_external_port);
ET_DEFINE_CHECKED(Uint,external_port_data,Wterm,is_external_port);
ET_DEFINE_CHECKED(struct erl_node_*,external_port_node,Wterm,is_external_port);
ET_DEFINE_CHECKED(Uint,external_ref_data_words,Wterm,is_external_ref);
ET_DEFINE_CHECKED(Uint32*,external_ref_data,Wterm,is_external_ref);
ET_DEFINE_CHECKED(struct erl_node_*,external_ref_node,Eterm,is_external_ref);
ET_DEFINE_CHECKED(Eterm*,export_val,Wterm,is_export);
ET_DEFINE_CHECKED(Uint,external_thing_data_words,ExternalThing*,is_thing_ptr);
ET_DEFINE_CHECKED(Eterm,make_cp,UWord *,_is_taggable_pointer);
ET_DEFINE_CHECKED(UWord *,cp_val,Eterm,is_CP);
ET_DEFINE_CHECKED(Uint,catch_val,Eterm,is_catch);
ET_DEFINE_CHECKED(Uint,loader_x_reg_index,Uint,_is_loader_x_reg);
ET_DEFINE_CHECKED(Uint,loader_y_reg_index,Uint,_is_loader_y_reg);
#endif /* ET_DEBUG */
|
