src/cpu/x86/vm/icache_x86.cpp

Sat, 29 Sep 2012 06:40:00 -0400

author
coleenp
date
Sat, 29 Sep 2012 06:40:00 -0400
changeset 4142
d8ce2825b193
parent 2314
f95d63e2154a
child 4318
cd3d6a6b95d9
permissions
-rw-r--r--

8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
Summary: Capitalize these metadata types (and objArrayKlass)
Reviewed-by: stefank, twisti, kvn

     1 /*
     2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #include "precompiled.hpp"
    26 #include "assembler_x86.inline.hpp"
    27 #include "runtime/icache.hpp"
    29 #define __ _masm->
    31 void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) {
    32   StubCodeMark mark(this, "ICache", "flush_icache_stub");
    34   address start = __ pc();
    35 #ifdef AMD64
    37   const Register addr  = c_rarg0;
    38   const Register lines = c_rarg1;
    39   const Register magic = c_rarg2;
    41   Label flush_line, done;
    43   __ testl(lines, lines);
    44   __ jcc(Assembler::zero, done);
    46   // Force ordering wrt cflush.
    47   // Other fence and sync instructions won't do the job.
    48   __ mfence();
    50   __ bind(flush_line);
    51   __ clflush(Address(addr, 0));
    52   __ addptr(addr, ICache::line_size);
    53   __ decrementl(lines);
    54   __ jcc(Assembler::notZero, flush_line);
    56   __ mfence();
    58   __ bind(done);
    60 #else
    61   const Address magic(rsp, 3*wordSize);
    62   __ lock(); __ addl(Address(rsp, 0), 0);
    63 #endif // AMD64
    64   __ movptr(rax, magic); // Handshake with caller to make sure it happened!
    65   __ ret(0);
    67   // Must be set here so StubCodeMark destructor can call the flush stub.
    68   *flush_icache_stub = (ICache::flush_icache_stub_t)start;
    69 }
    71 #undef __

mercurial