The R13B03 release.OTP_R13B03

1 files changed, 174 insertions, 0 deletions

diff --git a/erts/emulator/beam/erl_term.c b/erts/emulator/beam/erl_term.c
new file mode 100644
index 0000000000..2924abbd51
--- /dev/null
+++ b/erts/emulator/beam/erl_term.c
@@ -0,0 +1,174 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 2000-2009. 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/.
+ * 
+ * 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.
+ * 
+ * %CopyrightEnd%
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include "sys.h"
+#include "erl_vm.h"
+#include "global.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+__decl_noreturn static void __noreturn
+et_abort(const char *expr, const char *file, unsigned line)
+{
+#ifdef EXIT_ON_ET_ABORT
+    static int have_been_called = 0;
+
+    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(Eterm x, const char *file, unsigned line)
+#else
+unsigned tag_val_def(Eterm x)
+#define file __FILE__
+#define line __LINE__
+#endif
+{
+    static char msg[32];
+
+    switch (x & _TAG_PRIMARY_MASK) {
+      case TAG_PRIMARY_LIST:					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;
+	    }
+	    case (_TAG_IMMED1_SMALL >> _TAG_PRIMARY_SIZE):	return SMALL_DEF;
+	  }
+	  break;
+      }
+    }
+    sprintf(msg, "tag_val_def: %#lx", x);
+    et_abort(msg, file, line);
+#undef file
+#undef line
+}
+
+/*
+ * 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,Eterm*,_is_aligned);
+ET_DEFINE_CHECKED(int,is_boxed,Eterm,!is_header);
+ET_DEFINE_CHECKED(Eterm*,boxed_val,Eterm,is_boxed);
+ET_DEFINE_CHECKED(Eterm,make_list,Eterm*,_is_aligned);
+ET_DEFINE_CHECKED(int,is_not_list,Eterm,!is_header);
+ET_DEFINE_CHECKED(Eterm*,list_val,Eterm,is_list);
+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_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,Eterm,is_binary);
+ET_DEFINE_CHECKED(Eterm*,fun_val,Eterm,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,Eterm,is_big);
+ET_DEFINE_CHECKED(Eterm*,float_val,Eterm,is_float);
+ET_DEFINE_CHECKED(Eterm*,tuple_val,Eterm,is_tuple);
+ET_DEFINE_CHECKED(Uint,internal_pid_data,Eterm,is_internal_pid);
+ET_DEFINE_CHECKED(struct erl_node_*,internal_pid_node,Eterm,is_internal_pid);
+ET_DEFINE_CHECKED(Uint,internal_port_data,Eterm,is_internal_port);
+ET_DEFINE_CHECKED(struct erl_node_*,internal_port_node,Eterm,is_internal_port);
+ET_DEFINE_CHECKED(Eterm*,internal_ref_val,Eterm,is_internal_ref);
+ET_DEFINE_CHECKED(Uint,internal_ref_data_words,Eterm,is_internal_ref);
+ET_DEFINE_CHECKED(Uint32*,internal_ref_data,Eterm,is_internal_ref);
+ET_DEFINE_CHECKED(struct erl_node_*,internal_ref_node,Eterm,is_internal_ref);
+ET_DEFINE_CHECKED(Eterm*,external_val,Eterm,is_external);
+ET_DEFINE_CHECKED(Uint,external_data_words,Eterm,is_external);
+ET_DEFINE_CHECKED(Uint,external_pid_data_words,Eterm,is_external_pid);
+ET_DEFINE_CHECKED(Uint,external_pid_data,Eterm,is_external_pid);
+ET_DEFINE_CHECKED(struct erl_node_*,external_pid_node,Eterm,is_external_pid);
+ET_DEFINE_CHECKED(Uint,external_port_data_words,Eterm,is_external_port);
+ET_DEFINE_CHECKED(Uint,external_port_data,Eterm,is_external_port);
+ET_DEFINE_CHECKED(struct erl_node_*,external_port_node,Eterm,is_external_port);
+ET_DEFINE_CHECKED(Uint,external_ref_data_words,Eterm,is_external_ref);
+ET_DEFINE_CHECKED(Uint32*,external_ref_data,Eterm,is_external_ref);
+ET_DEFINE_CHECKED(struct erl_node_*,external_ref_node,Eterm,is_external_ref);
+ET_DEFINE_CHECKED(Eterm*,export_val,Eterm,is_export);
+
+ET_DEFINE_CHECKED(Eterm,make_cp,Uint*,_is_aligned);
+ET_DEFINE_CHECKED(Uint*,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);
+
+#endif	/* ET_DEBUG */