Mercurial > jdk8-mips64-public > hotspot / annotate
src/cpu/ppc/vm/icache_ppc.hpp@41b780b43b74 (annotated)
src/cpu/ppc/vm/icache_ppc.hpp
Wed, 27 Nov 2013 16:16:21 -0800
- author
- goetz
- date
- Wed, 27 Nov 2013 16:16:21 -0800
- changeset 6490
- 41b780b43b74
- parent 6458
- ec28f9c041ff
- child 6495
- 67fa91961822
- permissions
- -rw-r--r--
8029015: PPC64 (part 216): opto: trap based null and range checks
Summary: On PPC64 use tdi instruction that does a compare and raises SIGTRAP for NULL and range checks.
Reviewed-by: kvn
| goetz@6458 | 1 | /* |
| goetz@6458 | 2 | * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. |
| goetz@6458 | 3 | * Copyright 2012, 2013 SAP AG. All rights reserved. |
| goetz@6458 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| goetz@6458 | 5 | * |
| goetz@6458 | 6 | * This code is free software; you can redistribute it and/or modify it |
| goetz@6458 | 7 | * under the terms of the GNU General Public License version 2 only, as |
| goetz@6458 | 8 | * published by the Free Software Foundation. |
| goetz@6458 | 9 | * |
| goetz@6458 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| goetz@6458 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| goetz@6458 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| goetz@6458 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| goetz@6458 | 14 | * accompanied this code). |
| goetz@6458 | 15 | * |
| goetz@6458 | 16 | * You should have received a copy of the GNU General Public License version |
| goetz@6458 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| goetz@6458 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| goetz@6458 | 19 | * |
| goetz@6458 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| goetz@6458 | 21 | * or visit www.oracle.com if you need additional information or have any |
| goetz@6458 | 22 | * questions. |
| goetz@6458 | 23 | * |
| goetz@6458 | 24 | */ |
| goetz@6458 | 25 | |
| goetz@6458 | 26 | #ifndef CPU_PPC_VM_ICACHE_PPC_HPP |
| goetz@6458 | 27 | #define CPU_PPC_VM_ICACHE_PPC_HPP |
| goetz@6458 | 28 | |
| goetz@6458 | 29 | // Interface for updating the instruction cache. Whenever the VM modifies |
| goetz@6458 | 30 | // code, part of the processor instruction cache potentially has to be flushed. |
| goetz@6458 | 31 | |
| goetz@6458 | 32 | class ICache : public AbstractICache { |
| goetz@6458 | 33 | public: |
| goetz@6458 | 34 | enum { |
| goetz@6458 | 35 | // On PowerPC the cache line size is 32 bytes. |
| goetz@6458 | 36 | stub_size = 160, // Size of the icache flush stub in bytes. |
| goetz@6458 | 37 | line_size = 32, // Flush instruction affects 32 bytes. |
| goetz@6458 | 38 | log2_line_size = 5 // log2(line_size) |
| goetz@6458 | 39 | }; |
| goetz@6458 | 40 | |
| goetz@6458 | 41 | // Use default implementation |
| goetz@6458 | 42 | }; |
| goetz@6458 | 43 | |
| goetz@6458 | 44 | #endif // CPU_PPC_VM_ICACHE_PPC_HPP |
