diff src/os_cpu/linux_sparc/vm/assembler_linux_sparc.cpp @ 122:435e64505015

6693457: Open-source hotspot linux-sparc support Summary: Move os_cpu/linux_sparc from closed to open Reviewed-by: kamg
author phh
date Thu, 24 Apr 2008 15:07:57 -0400
parents
children d1605aabd0a1
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os_cpu/linux_sparc/vm/assembler_linux_sparc.cpp	Thu Apr 24 15:07:57 2008 -0400
@@ -0,0 +1,51 @@
+/*
+ * Copyright 1999-2006 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/_assembler_linux_sparc.cpp.incl"
+
+#include <asm-sparc/traps.h>
+
+bool MacroAssembler::needs_explicit_null_check(intptr_t offset) {
+  // Since the linux kernel resides at the low end of
+  // user address space, no null pointer check is needed.
+  return offset < 0 || offset >= 0x100000;
+}
+
+void MacroAssembler::read_ccr_trap(Register ccr_save) {
+  // No implementation
+  breakpoint_trap();
+}
+
+void MacroAssembler::write_ccr_trap(Register ccr_save, Register scratch1, Register scratch2) {
+  // No implementation
+  breakpoint_trap();
+}
+
+void MacroAssembler::flush_windows_trap() { trap(SP_TRAP_FWIN); }
+void MacroAssembler::clean_windows_trap() { trap(SP_TRAP_CWIN); }
+
+// Use software breakpoint trap until we figure out how to do this on Linux
+void MacroAssembler::get_psr_trap()       { trap(SP_TRAP_SBPT); }
+void MacroAssembler::set_psr_trap()       { trap(SP_TRAP_SBPT); }