diff options
Diffstat (limited to 'erts/emulator/beam/erl_term.c')
| -rw-r--r-- | erts/emulator/beam/erl_term.c | 136 |
1 files changed, 41 insertions, 95 deletions
diff --git a/erts/emulator/beam/erl_term.c b/erts/emulator/beam/erl_term.c index 2f206ffbec..7d857ad326 100644 --- a/erts/emulator/beam/erl_term.c +++ b/erts/emulator/beam/erl_term.c @@ -1,18 +1,19 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 2000-2013. All Rights Reserved. + * Copyright Ericsson AB 2000-2016. All Rights Reserved. * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. + * 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 * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. + * 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% */ @@ -23,92 +24,39 @@ #include "sys.h" #include "erl_vm.h" #include "global.h" +#include "erl_map.h" #include <stdlib.h> #include <stdio.h> -__decl_noreturn static void __noreturn -et_abort(const char *expr, const char *file, unsigned line) +void +erts_set_literal_tag(Eterm *term, Eterm *hp_start, Eterm hsz) { -#ifdef EXIT_ON_ET_ABORT - static int have_been_called = 0; +#ifdef TAG_LITERAL_PTR + Eterm *hp_end, *hp; + + hp_end = hp_start + hsz; + hp = hp_start; - if (have_been_called) { - abort(); - } else { - /* - * Prevent infinite loop. - */ - have_been_called = 1; - erl_exit(1, "TYPE ASSERTION FAILED, file %s, line %u: %s\n", file, line, expr); - } -#else - erts_fprintf(stderr, "TYPE ASSERTION FAILED, file %s, line %u: %s\n", file, line, expr); - abort(); -#endif -} - -#if ET_DEBUG -#define ET_ASSERT(expr,file,line) \ -do { \ - if (!(expr)) \ - et_abort(#expr, file, line); \ -} while(0) -#else -#define ET_ASSERT(expr,file,line) do { } while(0) -#endif - -#if ET_DEBUG -unsigned tag_val_def_debug(Wterm x, const char *file, unsigned line) -#else -unsigned tag_val_def(Wterm x) -#define file __FILE__ -#define line __LINE__ -#endif -{ - static char msg[32]; - - switch (x & _TAG_PRIMARY_MASK) { - case TAG_PRIMARY_LIST: - ET_ASSERT(_list_precond(x),file,line); - return LIST_DEF; - case TAG_PRIMARY_BOXED: { - Eterm hdr = *boxed_val(x); - ET_ASSERT(is_header(hdr),file,line); - switch ((hdr & _TAG_HEADER_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_HEADER_ARITYVAL >> _TAG_PRIMARY_SIZE): return TUPLE_DEF; - case (_TAG_HEADER_POS_BIG >> _TAG_PRIMARY_SIZE): return BIG_DEF; - case (_TAG_HEADER_NEG_BIG >> _TAG_PRIMARY_SIZE): return BIG_DEF; - case (_TAG_HEADER_REF >> _TAG_PRIMARY_SIZE): return REF_DEF; - case (_TAG_HEADER_FLOAT >> _TAG_PRIMARY_SIZE): return FLOAT_DEF; - case (_TAG_HEADER_EXPORT >> _TAG_PRIMARY_SIZE): return EXPORT_DEF; - case (_TAG_HEADER_FUN >> _TAG_PRIMARY_SIZE): return FUN_DEF; - case (_TAG_HEADER_EXTERNAL_PID >> _TAG_PRIMARY_SIZE): return EXTERNAL_PID_DEF; - case (_TAG_HEADER_EXTERNAL_PORT >> _TAG_PRIMARY_SIZE): return EXTERNAL_PORT_DEF; - case (_TAG_HEADER_EXTERNAL_REF >> _TAG_PRIMARY_SIZE): return EXTERNAL_REF_DEF; - default: return BINARY_DEF; - } - break; - } - case TAG_PRIMARY_IMMED1: { - switch ((x & _TAG_IMMED1_MASK) >> _TAG_PRIMARY_SIZE) { - case (_TAG_IMMED1_PID >> _TAG_PRIMARY_SIZE): return PID_DEF; - case (_TAG_IMMED1_PORT >> _TAG_PRIMARY_SIZE): return PORT_DEF; - case (_TAG_IMMED1_IMMED2 >> _TAG_PRIMARY_SIZE): { - switch ((x & _TAG_IMMED2_MASK) >> _TAG_IMMED1_SIZE) { - case (_TAG_IMMED2_ATOM >> _TAG_IMMED1_SIZE): return ATOM_DEF; - case (_TAG_IMMED2_NIL >> _TAG_IMMED1_SIZE): return NIL_DEF; - } - break; + 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); } - case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE): return SMALL_DEF; - } - break; - } + break; + default: + break; + } + + hp++; } - erts_snprintf(msg, sizeof(msg), "tag_val_def: %#lx", (unsigned long) x); - et_abort(msg, file, line); -#undef file -#undef line + if (is_boxed(*term) || is_list(*term)) + *term |= TAG_LITERAL_PTR; +#endif } /* @@ -123,10 +71,10 @@ FUNTY checked_##FUN(ARGTY x, const char *file, unsigned line) \ return _unchecked_##FUN(x); \ } -ET_DEFINE_CHECKED(Eterm,make_boxed,Eterm*,_is_taggable_pointer); +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,Eterm*,_is_taggable_pointer); +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); @@ -167,9 +115,7 @@ 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,x_reg_offset,Uint,_is_xreg); -ET_DEFINE_CHECKED(Uint,y_reg_offset,Uint,_is_yreg); -ET_DEFINE_CHECKED(Uint,x_reg_index,Uint,_is_xreg); -ET_DEFINE_CHECKED(Uint,y_reg_index,Uint,_is_yreg); +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 */ |