hotspot/src/os_cpu/linux_sparc/vm/assembler_linux_sparc.cpp
author coleenp
Sat, 19 Jul 2008 17:38:22 -0400
changeset 823 9a5271881bc0
parent 670 ddf3e9583f2f
child 5547 f4b087cbb361
permissions -rw-r--r--
6716785: implicit null checks not triggering with CompressedOops Summary: allocate alignment-sized page(s) below java heap so that memory accesses at heap_base+1page give signal and cause an implicit null check Reviewed-by: kvn, jmasa, phh, jcoomes
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
380
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
     1
/*
670
ddf3e9583f2f 6719955: Update copyright year
xdono
parents: 380
diff changeset
     2
 * Copyright 1999-2008 Sun Microsystems, Inc.  All Rights Reserved.
380
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
     4
 *
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
     7
 * published by the Free Software Foundation.
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
     8
 *
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    13
 * accompanied this code).
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    14
 *
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    18
 *
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    19
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    20
 * CA 95054 USA or visit www.sun.com if you need additional information or
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    21
 * have any questions.
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    22
 *
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    23
 */
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    24
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    25
#include "incls/_precompiled.incl"
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    26
#include "incls/_assembler_linux_sparc.cpp.incl"
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    27
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    28
#include <asm-sparc/traps.h>
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    29
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    30
void MacroAssembler::read_ccr_trap(Register ccr_save) {
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    31
  // No implementation
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    32
  breakpoint_trap();
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    33
}
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    34
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    35
void MacroAssembler::write_ccr_trap(Register ccr_save, Register scratch1, Register scratch2) {
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    36
  // No implementation
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    37
  breakpoint_trap();
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    38
}
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    39
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    40
void MacroAssembler::flush_windows_trap() { trap(SP_TRAP_FWIN); }
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    41
void MacroAssembler::clean_windows_trap() { trap(SP_TRAP_CWIN); }
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    42
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    43
// Use software breakpoint trap until we figure out how to do this on Linux
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    44
void MacroAssembler::get_psr_trap()       { trap(SP_TRAP_SBPT); }
ec5fd25a5edf 6693457: Open-source hotspot linux-sparc support
phh
parents:
diff changeset
    45
void MacroAssembler::set_psr_trap()       { trap(SP_TRAP_SBPT); }