6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
//===-- ArmUnwindInfo.h -----------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLDB_SYMBOL_ARMUNWINDINFO_H
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#define LLDB_SYMBOL_ARMUNWINDINFO_H
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Utility/DataExtractor.h"
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#include "lldb/Utility/RangeMap.h"
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#include "lldb/lldb-private.h"
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#include <vector>
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/*
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* Unwind information reader and parser for the ARM exception handling ABI
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*
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* Implemented based on:
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* Exception Handling ABI for the ARM Architecture
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* Document number: ARM IHI 0038A (current through ABI r2.09)
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* Date of Issue: 25th January 2007, reissued 30th November 2012
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* http://infocenter.arm.com/help/topic/com.arm.doc.ihi0038a/IHI0038A_ehabi.pdf
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*/
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namespace lldb_private {
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class ArmUnwindInfo {
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public:
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ArmUnwindInfo(ObjectFile &objfile, lldb::SectionSP &arm_exidx,
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lldb::SectionSP &arm_extab);
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~ArmUnwindInfo();
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bool GetUnwindPlan(Target &target, const Address &addr,
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UnwindPlan &unwind_plan);
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private:
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struct ArmExidxEntry {
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ArmExidxEntry(uint32_t f, lldb::addr_t a, uint32_t d);
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bool operator<(const ArmExidxEntry &other) const;
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uint32_t file_address;
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lldb::addr_t address;
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uint32_t data;
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};
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const uint8_t *GetExceptionHandlingTableEntry(const Address &addr);
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uint8_t GetByteAtOffset(const uint32_t *data, uint16_t offset) const;
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uint64_t GetULEB128(const uint32_t *data, uint16_t &offset,
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uint16_t max_offset) const;
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const lldb::ByteOrder m_byte_order;
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lldb::SectionSP m_arm_exidx_sp; // .ARM.exidx section
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lldb::SectionSP m_arm_extab_sp; // .ARM.extab section
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DataExtractor m_arm_exidx_data; // .ARM.exidx section data
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DataExtractor m_arm_extab_data; // .ARM.extab section data
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std::vector<ArmExidxEntry> m_exidx_entries;
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};
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} // namespace lldb_private
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#endif // LLDB_SYMBOL_ARMUNWINDINFO_H
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