Mon, 04 Nov 2013 21:59:54 +0100
8027445: SIGSEGV at TestFloatingDecimal.testAppendToDouble()I
Summary: String.equals() intrinsic shouldn't use integer length input in pointer arithmetic without an i2l.
Reviewed-by: kvn, twisti
duke@435 | 1 | /* |
never@2950 | 2 | * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef CPU_SPARC_VM_REGISTERMAP_SPARC_HPP |
stefank@2314 | 26 | #define CPU_SPARC_VM_REGISTERMAP_SPARC_HPP |
stefank@2314 | 27 | |
duke@435 | 28 | // machine-dependent implemention for register maps |
duke@435 | 29 | friend class frame; |
never@2950 | 30 | friend class MethodHandles; |
duke@435 | 31 | |
duke@435 | 32 | private: |
duke@435 | 33 | intptr_t* _window; // register window save area (for L and I regs) |
duke@435 | 34 | intptr_t* _younger_window; // previous save area (for O regs, if needed) |
duke@435 | 35 | |
duke@435 | 36 | address pd_location(VMReg reg) const; |
duke@435 | 37 | void pd_clear(); |
duke@435 | 38 | void pd_initialize_from(const RegisterMap* map) { |
duke@435 | 39 | _window = map->_window; |
duke@435 | 40 | _younger_window = map->_younger_window; |
duke@435 | 41 | _location_valid[0] = 0; // avoid the shift_individual_registers game |
duke@435 | 42 | } |
duke@435 | 43 | void pd_initialize() { |
duke@435 | 44 | _window = NULL; |
duke@435 | 45 | _younger_window = NULL; |
duke@435 | 46 | _location_valid[0] = 0; // avoid the shift_individual_registers game |
duke@435 | 47 | } |
duke@435 | 48 | void shift_window(intptr_t* sp, intptr_t* younger_sp) { |
duke@435 | 49 | _window = sp; |
duke@435 | 50 | _younger_window = younger_sp; |
duke@435 | 51 | // Throw away locations for %i, %o, and %l registers: |
duke@435 | 52 | // But do not throw away %g register locs. |
duke@435 | 53 | if (_location_valid[0] != 0) shift_individual_registers(); |
duke@435 | 54 | } |
duke@435 | 55 | void shift_individual_registers(); |
duke@435 | 56 | // When popping out of compiled frames, we make all IRegs disappear. |
duke@435 | 57 | void make_integer_regs_unsaved() { _location_valid[0] = 0; } |
stefank@2314 | 58 | |
stefank@2314 | 59 | #endif // CPU_SPARC_VM_REGISTERMAP_SPARC_HPP |