1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/cpu/sparc/vm/registerMap_sparc.hpp Wed Apr 27 01:25:04 2016 +0800 1.3 @@ -0,0 +1,59 @@ 1.4 +/* 1.5 + * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.23 + * or visit www.oracle.com if you need additional information or have any 1.24 + * questions. 1.25 + * 1.26 + */ 1.27 + 1.28 +#ifndef CPU_SPARC_VM_REGISTERMAP_SPARC_HPP 1.29 +#define CPU_SPARC_VM_REGISTERMAP_SPARC_HPP 1.30 + 1.31 +// machine-dependent implemention for register maps 1.32 + friend class frame; 1.33 + friend class MethodHandles; 1.34 + 1.35 + private: 1.36 + intptr_t* _window; // register window save area (for L and I regs) 1.37 + intptr_t* _younger_window; // previous save area (for O regs, if needed) 1.38 + 1.39 + address pd_location(VMReg reg) const; 1.40 + void pd_clear(); 1.41 + void pd_initialize_from(const RegisterMap* map) { 1.42 + _window = map->_window; 1.43 + _younger_window = map->_younger_window; 1.44 + _location_valid[0] = 0; // avoid the shift_individual_registers game 1.45 + } 1.46 + void pd_initialize() { 1.47 + _window = NULL; 1.48 + _younger_window = NULL; 1.49 + _location_valid[0] = 0; // avoid the shift_individual_registers game 1.50 + } 1.51 + void shift_window(intptr_t* sp, intptr_t* younger_sp) { 1.52 + _window = sp; 1.53 + _younger_window = younger_sp; 1.54 + // Throw away locations for %i, %o, and %l registers: 1.55 + // But do not throw away %g register locs. 1.56 + if (_location_valid[0] != 0) shift_individual_registers(); 1.57 + } 1.58 + void shift_individual_registers(); 1.59 + // When popping out of compiled frames, we make all IRegs disappear. 1.60 + void make_integer_regs_unsaved() { _location_valid[0] = 0; } 1.61 + 1.62 +#endif // CPU_SPARC_VM_REGISTERMAP_SPARC_HPP