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| 1 | +/* |
| 2 | + * Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved. |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | + * |
| 5 | + * This code is free software; you can redistribute it and/or modify it |
| 6 | + * under the terms of the GNU General Public License version 2 only, as |
| 7 | + * published by the Free Software Foundation. |
| 8 | + * |
| 9 | + * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | + * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | + * accompanied this code). |
| 14 | + * |
| 15 | + * You should have received a copy of the GNU General Public License version |
| 16 | + * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | + * |
| 19 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 20 | + * or visit www.oracle.com if you need additional information or have any |
| 21 | + * questions. |
| 22 | + * |
| 23 | + */ |
| 24 | + |
| 25 | +#ifndef SHARE_RUNTIME_STACKVALUE_INLINE_HPP |
| 26 | +#define SHARE_RUNTIME_STACKVALUE_INLINE_HPP |
| 27 | + |
| 28 | +#include "runtime/stackValue.hpp" |
| 29 | + |
| 30 | +#include "code/debugInfo.hpp" |
| 31 | +#include "code/location.hpp" |
| 32 | +#include "runtime/continuation.hpp" |
| 33 | +#include "runtime/handles.hpp" |
| 34 | +#include "runtime/thread.hpp" |
| 35 | + |
| 36 | +template<typename RegisterMapT> |
| 37 | +StackValue* StackValue::create_stack_value(const frame* fr, const RegisterMapT* reg_map, ScopeValue* sv) { |
| 38 | + return create_stack_value(sv, stack_value_address(fr, reg_map, sv), reg_map); |
| 39 | +} |
| 40 | + |
| 41 | +template<typename RegisterMapT> |
| 42 | +address StackValue::stack_value_address(const frame* fr, const RegisterMapT* reg_map, ScopeValue* sv) { |
| 43 | + if (!sv->is_location()) { |
| 44 | + return NULL; |
| 45 | + } |
| 46 | + Location loc = ((LocationValue *)sv)->location(); |
| 47 | + if (loc.type() == Location::invalid) { |
| 48 | + return NULL; |
| 49 | + } |
| 50 | + |
| 51 | + if (!reg_map->in_cont()) { |
| 52 | + address value_addr = loc.is_register() |
| 53 | + // Value was in a callee-save register |
| 54 | + ? reg_map->location(VMRegImpl::as_VMReg(loc.register_number()), fr->sp()) |
| 55 | + // Else value was directly saved on the stack. The frame's original stack pointer, |
| 56 | + // before any extension by its callee (due to Compiler1 linkage on SPARC), must be used. |
| 57 | + : ((address)fr->unextended_sp()) + loc.stack_offset(); |
| 58 | + |
| 59 | + assert(value_addr == NULL || reg_map->thread() == NULL || reg_map->thread()->is_in_usable_stack(value_addr), INTPTR_FORMAT, p2i(value_addr)); |
| 60 | + return value_addr; |
| 61 | + } |
| 62 | + |
| 63 | + address value_addr = loc.is_register() |
| 64 | + ? reg_map->as_RegisterMap()->stack_chunk()->reg_to_location(*fr, reg_map->as_RegisterMap(), VMRegImpl::as_VMReg(loc.register_number())) |
| 65 | + : reg_map->as_RegisterMap()->stack_chunk()->usp_offset_to_location(*fr, loc.stack_offset()); |
| 66 | + |
| 67 | + assert(value_addr == NULL || Continuation::is_in_usable_stack(value_addr, reg_map->as_RegisterMap()) || (reg_map->thread() != NULL && reg_map->thread()->is_in_usable_stack(value_addr)), INTPTR_FORMAT, p2i(value_addr)); |
| 68 | + return value_addr; |
| 69 | +} |
| 70 | + |
| 71 | +#endif // SHARE_RUNTIME_STACKVALUE_INLINE_HPP |
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