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// Copyright 2019 Google
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include "Crashlytics/Crashlytics/Helpers/FIRCLSFeatures.h"
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#include "Crashlytics/Crashlytics/Helpers/FIRCLSThreadState.h"
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#define CLS_DWARF_EXPRESSION_STACK_SIZE (100)
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#if CLS_DWARF_UNWINDING_SUPPORTED
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typedef struct {
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intptr_t buffer[CLS_DWARF_EXPRESSION_STACK_SIZE];
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intptr_t *pointer;
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} FIRCLSDwarfExpressionStack;
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typedef struct {
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FIRCLSDwarfExpressionStack stack;
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const void *dataCursor;
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const void *endAddress;
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const FIRCLSThreadContext *registers;
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} FIRCLSDwarfExpressionMachine;
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void FIRCLSDwarfExpressionStackInit(FIRCLSDwarfExpressionStack *stack);
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bool FIRCLSDwarfExpressionStackIsValid(FIRCLSDwarfExpressionStack *stack);
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bool FIRCLSDwarfExpressionStackPush(FIRCLSDwarfExpressionStack *stack, intptr_t value);
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intptr_t FIRCLSDwarfExpressionStackPeek(FIRCLSDwarfExpressionStack *stack);
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intptr_t FIRCLSDwarfExpressionStackPop(FIRCLSDwarfExpressionStack *stack);
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bool FIRCLSDwarfExpressionMachineInit(FIRCLSDwarfExpressionMachine *machine,
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const void *cursor,
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const FIRCLSThreadContext *registers,
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intptr_t stackValue);
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bool FIRCLSDwarfExpressionMachinePrepareForExecution(FIRCLSDwarfExpressionMachine *machine);
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bool FIRCLSDwarfExpressionMachineIsFinished(FIRCLSDwarfExpressionMachine *machine);
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bool FIRCLSDwarfExpressionMachineGetResult(FIRCLSDwarfExpressionMachine *machine, intptr_t *result);
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bool FIRCLSDwarfExpressionMachineExecuteNextOpcode(FIRCLSDwarfExpressionMachine *machine);
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#endif
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