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1 /*
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196
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2 * Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved.
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133
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include "incls/_precompiled.incl"
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26 #include "incls/_assembler_linux_sparc.cpp.incl"
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27
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28 #include <asm-sparc/traps.h>
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29
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30 bool MacroAssembler::needs_explicit_null_check(intptr_t offset) {
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31 // Since the linux kernel resides at the low end of
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32 // user address space, no null pointer check is needed.
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33 return offset < 0 || offset >= 0x100000;
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34 }
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35
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36 void MacroAssembler::read_ccr_trap(Register ccr_save) {
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37 // No implementation
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38 breakpoint_trap();
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39 }
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40
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41 void MacroAssembler::write_ccr_trap(Register ccr_save, Register scratch1, Register scratch2) {
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42 // No implementation
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43 breakpoint_trap();
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44 }
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45
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46 void MacroAssembler::flush_windows_trap() { trap(SP_TRAP_FWIN); }
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47 void MacroAssembler::clean_windows_trap() { trap(SP_TRAP_CWIN); }
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48
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49 // Use software breakpoint trap until we figure out how to do this on Linux
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50 void MacroAssembler::get_psr_trap() { trap(SP_TRAP_SBPT); }
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51 void MacroAssembler::set_psr_trap() { trap(SP_TRAP_SBPT); }
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