Mercurial > hg > truffle
annotate src/os_cpu/linux_zero/vm/os_linux_zero.hpp @ 3883:ce9bde819dcb hs22-b04
7086589: bump the hs22 build number to 04
Reviewed-by: johnc
Contributed-by: alejandro.murillo@oracle.com
| author | jcoomes |
|---|---|
| date | Fri, 02 Sep 2011 03:49:30 -0700 |
| parents | f95d63e2154a |
| children | 0f03ff49c720 |
| rev | line source |
|---|---|
| 1010 | 1 /* |
| 1972 | 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
| 1266 | 3 * Copyright 2007, 2008, 2010 Red Hat, Inc. |
| 1010 | 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 5 * | |
| 6 * This code is free software; you can redistribute it and/or modify it | |
| 7 * under the terms of the GNU General Public License version 2 only, as | |
| 8 * published by the Free Software Foundation. | |
| 9 * | |
| 10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 13 * version 2 for more details (a copy is included in the LICENSE file that | |
| 14 * accompanied this code). | |
| 15 * | |
| 16 * You should have received a copy of the GNU General Public License version | |
| 17 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 19 * | |
|
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
| 1010 | 23 * |
| 24 */ | |
| 25 | |
| 1972 | 26 #ifndef OS_CPU_LINUX_ZERO_VM_OS_LINUX_ZERO_HPP |
| 27 #define OS_CPU_LINUX_ZERO_VM_OS_LINUX_ZERO_HPP | |
| 28 | |
| 1010 | 29 static void setup_fpu() {} |
| 30 | |
| 31 static bool is_allocatable(size_t bytes); | |
| 32 | |
| 33 // Used to register dynamic code cache area with the OS | |
| 34 // Note: Currently only used in 64 bit Windows implementations | |
| 35 static bool register_code_area(char *low, char *high) { return true; } | |
| 36 | |
| 37 // Atomically copy 64 bits of data | |
| 38 static void atomic_copy64(volatile void *src, volatile void *dst) { | |
| 39 #if defined(PPC) && !defined(_LP64) | |
| 40 double tmp; | |
| 41 asm volatile ("lfd %0, 0(%1)\n" | |
| 42 "stfd %0, 0(%2)\n" | |
| 43 : "=f"(tmp) | |
| 44 : "b"(src), "b"(dst)); | |
| 1266 | 45 #elif defined(S390) && !defined(_LP64) |
| 46 double tmp; | |
| 47 asm volatile ("ld %0, 0(%1)\n" | |
| 48 "std %0, 0(%2)\n" | |
| 49 : "=r"(tmp) | |
| 50 : "a"(src), "a"(dst)); | |
| 1010 | 51 #else |
| 52 *(jlong *) dst = *(jlong *) src; | |
| 1266 | 53 #endif |
| 1010 | 54 } |
| 1972 | 55 |
| 56 #endif // OS_CPU_LINUX_ZERO_VM_OS_LINUX_ZERO_HPP |