diff src/share/vm/code/location.cpp @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children cecd8eb4e0ca
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/code/location.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,69 @@
+/*
+ * Copyright 1997-2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_location.cpp.incl"
+
+void Location::print_on(outputStream* st) const {
+  if(type() == invalid && !legal_offset_in_bytes(offset() * BytesPerInt)) {
+    // product of Location::invalid_loc() or Location::Location().
+    switch (where()) {
+    case on_stack:     st->print("empty");    break;
+    case in_register:  st->print("invalid");  break;
+    }
+    return;
+  }
+  switch (where()) {
+  case on_stack:    st->print("stack[%d]", stack_offset());    break;
+  case in_register: st->print("reg %s [%d]", reg()->name(), register_number()); break;
+  default:          st->print("Wrong location where %d", where());
+  }
+  switch (type()) {
+  case normal:                                 break;
+  case oop:          st->print(",oop");        break;
+  case int_in_long:  st->print(",int");        break;
+  case lng:          st->print(",long");       break;
+  case float_in_dbl: st->print(",float");      break;
+  case dbl:          st->print(",double");     break;
+  case addr:         st->print(",address");    break;
+  default:           st->print("Wrong location type %d", type());
+  }
+}
+
+
+Location::Location(DebugInfoReadStream* stream) {
+  _value = (uint16_t) stream->read_int();
+}
+
+
+void Location::write_on(DebugInfoWriteStream* stream) {
+  stream->write_int(_value & 0x0000FFFF);
+}
+
+
+// Valid argument to Location::new_stk_loc()?
+bool Location::legal_offset_in_bytes(int offset_in_bytes) {
+  if ((offset_in_bytes % BytesPerInt) != 0)  return false;
+  return (offset_in_bytes / BytesPerInt) < (OFFSET_MASK >> OFFSET_SHIFT);
+}