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-rw-r--r--erts/emulator/beam/erl_term.c136
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 */