Mercurial > hg > graal-compiler
view src/share/vm/compiler/disassembler.hpp @ 13000:209aa13ab8c0
8024927: Nashorn performance regression with CompressedOops
Summary: Allocate compressed class space at end of Java heap. For small heap sizes, without CDS, save some space so compressed classes can have the same favorable compression as oops
Reviewed-by: stefank, hseigel, goetz
author | coleenp |
---|---|
date | Fri, 25 Oct 2013 15:19:29 -0400 |
parents | a5de0cc2f91c |
children | de6a9e811145 bdd155477289 |
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/* * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_VM_COMPILER_DISASSEMBLER_HPP #define SHARE_VM_COMPILER_DISASSEMBLER_HPP #include "asm/codeBuffer.hpp" #include "runtime/globals.hpp" #ifdef TARGET_OS_FAMILY_linux # include "os_linux.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_solaris # include "os_solaris.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_windows # include "os_windows.inline.hpp" #endif #ifdef TARGET_OS_FAMILY_bsd # include "os_bsd.inline.hpp" #endif class decode_env; // The disassembler prints out assembly code annotated // with Java specific information. class Disassembler { friend class decode_env; private: // this is the type of the dll entry point: typedef void* (*decode_func_virtual)(uintptr_t start_va, uintptr_t end_va, unsigned char* buffer, uintptr_t length, void* (*event_callback)(void*, const char*, void*), void* event_stream, int (*printf_callback)(void*, const char*, ...), void* printf_stream, const char* options, int newline); // this is the type of the dll entry point for old version: typedef void* (*decode_func)(void* start_va, void* end_va, void* (*event_callback)(void*, const char*, void*), void* event_stream, int (*printf_callback)(void*, const char*, ...), void* printf_stream, const char* options); // points to the library. static void* _library; // bailout static bool _tried_to_load_library; // points to the decode function. static decode_func_virtual _decode_instructions_virtual; static decode_func _decode_instructions; // tries to load library and return whether it succedded. static bool load_library(); // Machine dependent stuff #ifdef TARGET_ARCH_x86 # include "disassembler_x86.hpp" #endif #ifdef TARGET_ARCH_sparc # include "disassembler_sparc.hpp" #endif #ifdef TARGET_ARCH_zero # include "disassembler_zero.hpp" #endif #ifdef TARGET_ARCH_arm # include "disassembler_arm.hpp" #endif #ifdef TARGET_ARCH_ppc # include "disassembler_ppc.hpp" #endif public: static bool can_decode() { return (_decode_instructions_virtual != NULL) || (_decode_instructions != NULL) || load_library(); } static void decode(CodeBlob *cb, outputStream* st = NULL); static void decode(nmethod* nm, outputStream* st = NULL); static void decode(address begin, address end, outputStream* st = NULL, CodeStrings c = CodeStrings()); }; #endif // SHARE_VM_COMPILER_DISASSEMBLER_HPP