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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2000-2017. 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 */
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