lldb_private::CompactUnwindInfo Class Reference

#include <CompactUnwindInfo.h>

Classes
struct	FunctionInfo
struct	UnwindHeader
struct	UnwindIndex

Public Member Functions
	CompactUnwindInfo (ObjectFile &objfile, lldb::SectionSP &section)
	~CompactUnwindInfo ()
bool	GetUnwindPlan (Target &target, Address addr, UnwindPlan &unwind_plan)
bool	IsValid (const lldb::ProcessSP &process_sp)

Private Member Functions
void	ScanIndex (const lldb::ProcessSP &process_sp)
bool	GetCompactUnwindInfoForFunction (Target &target, Address address, FunctionInfo &unwind_info)
lldb::offset_t	BinarySearchRegularSecondPage (uint32_t entry_page_offset, uint32_t entry_count, uint32_t function_offset, uint32_t *entry_func_start_offset, uint32_t *entry_func_end_offset)
uint32_t	BinarySearchCompressedSecondPage (uint32_t entry_page_offset, uint32_t entry_count, uint32_t function_offset_to_find, uint32_t function_offset_base, uint32_t *entry_func_start_offset, uint32_t *entry_func_end_offset)
uint32_t	GetLSDAForFunctionOffset (uint32_t lsda_offset, uint32_t lsda_count, uint32_t function_offset)
bool	CreateUnwindPlan_x86_64 (Target &target, FunctionInfo &function_info, UnwindPlan &unwind_plan, Address pc_or_function_start)
bool	CreateUnwindPlan_i386 (Target &target, FunctionInfo &function_info, UnwindPlan &unwind_plan, Address pc_or_function_start)
bool	CreateUnwindPlan_arm64 (Target &target, FunctionInfo &function_info, UnwindPlan &unwind_plan, Address pc_or_function_start)
bool	CreateUnwindPlan_armv7 (Target &target, FunctionInfo &function_info, UnwindPlan &unwind_plan, Address pc_or_function_start)

Private Attributes
ObjectFile &	m_objfile
lldb::SectionSP	m_section_sp
lldb::WritableDataBufferSP	m_section_contents_if_encrypted
std::mutex	m_mutex
std::vector< UnwindIndex >	m_indexes
LazyBool	m_indexes_computed
DataExtractor	m_unwindinfo_data
bool	m_unwindinfo_data_computed
UnwindHeader	m_unwind_header

Detailed Description

Definition at line 36 of file CompactUnwindInfo.h.

Constructor & Destructor Documentation

CompactUnwindInfo()

CompactUnwindInfo::CompactUnwindInfo	(	ObjectFile &	objfile,
		lldb::SectionSP &	section )

Definition at line 163 of file CompactUnwindInfo.cpp.

References lldb_private::eLazyBoolCalculate, m_indexes, m_indexes_computed, m_mutex, m_objfile, m_section_contents_if_encrypted, m_section_sp, m_unwind_header, m_unwindinfo_data, and m_unwindinfo_data_computed.

~CompactUnwindInfo()

CompactUnwindInfo::~CompactUnwindInfo ( )

default

Member Function Documentation

BinarySearchCompressedSecondPage()

uint32_t CompactUnwindInfo::BinarySearchCompressedSecondPage ( uint32_t entry_page_offset, uint32_t entry_count, uint32_t function_offset_to_find, uint32_t function_offset_base, uint32_t * entry_func_start_offset, uint32_t * entry_func_end_offset )

private

Definition at line 451 of file CompactUnwindInfo.cpp.

References m_unwindinfo_data, UINT32_MAX, UNWIND_INFO_COMPRESSED_ENTRY_ENCODING_INDEX, and UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET.

Referenced by GetCompactUnwindInfoForFunction().

BinarySearchRegularSecondPage()

lldb::offset_t CompactUnwindInfo::BinarySearchRegularSecondPage ( uint32_t entry_page_offset, uint32_t entry_count, uint32_t function_offset, uint32_t * entry_func_start_offset, uint32_t * entry_func_end_offset )

private

Definition at line 411 of file CompactUnwindInfo.cpp.

References LLDB_INVALID_OFFSET, and m_unwindinfo_data.

Referenced by GetCompactUnwindInfoForFunction().

CreateUnwindPlan_arm64()

bool CompactUnwindInfo::CreateUnwindPlan_arm64 ( Target & target, FunctionInfo & function_info, UnwindPlan & unwind_plan, Address pc_or_function_start )

private

Definition at line 1293 of file CompactUnwindInfo.cpp.

References lldb_private::UnwindPlan::AppendRow(), lldb_private::eLazyBoolNo, lldb_private::eLazyBoolYes, lldb_private::CompactUnwindInfo::FunctionInfo::encoding, lldb::eRegisterKindEHFrame, EXTRACT_BITS, fp, lldb_private::UnwindPlan::Row::GetCFAValue(), pc, ra, lldb_private::UnwindPlan::Row::FAValue::SetIsRegisterPlusOffset(), lldb_private::UnwindPlan::SetRegisterKind(), lldb_private::UnwindPlan::Row::SetRegisterLocationToAtCFAPlusOffset(), lldb_private::UnwindPlan::Row::SetRegisterLocationToIsCFAPlusOffset(), lldb_private::UnwindPlan::Row::SetRegisterLocationToRegister(), lldb_private::UnwindPlan::SetSourcedFromCompiler(), lldb_private::UnwindPlan::SetSourceName(), lldb_private::UnwindPlan::SetUnwindPlanForSignalTrap(), lldb_private::UnwindPlan::SetUnwindPlanValidAtAllInstructions(), sp, x19, x20, x21, x22, x23, x24, x25, x26, x27, and x28.

Referenced by GetUnwindPlan().

CreateUnwindPlan_armv7()

bool CompactUnwindInfo::CreateUnwindPlan_armv7 ( Target & target, FunctionInfo & function_info, UnwindPlan & unwind_plan, Address pc_or_function_start )

private

Definition at line 1421 of file CompactUnwindInfo.cpp.

References lldb_private::UnwindPlan::AppendRow(), arm_d10, arm_d12, arm_d14, arm_d8, arm_pc, arm_r10, arm_r11, arm_r12, arm_r4, arm_r5, arm_r6, arm_r7, arm_r8, arm_r9, arm_sp, lldb_private::eLazyBoolNo, lldb_private::eLazyBoolYes, lldb_private::CompactUnwindInfo::FunctionInfo::encoding, lldb::eRegisterKindEHFrame, EXTRACT_BITS, lldb_private::UnwindPlan::Row::GetCFAValue(), lldb_private::UnwindPlan::Row::FAValue::SetIsRegisterPlusOffset(), lldb_private::UnwindPlan::SetRegisterKind(), lldb_private::UnwindPlan::Row::SetRegisterLocationToAtCFAPlusOffset(), lldb_private::UnwindPlan::Row::SetRegisterLocationToIsCFAPlusOffset(), lldb_private::UnwindPlan::SetSourcedFromCompiler(), lldb_private::UnwindPlan::SetSourceName(), lldb_private::UnwindPlan::SetUnwindPlanForSignalTrap(), and lldb_private::UnwindPlan::SetUnwindPlanValidAtAllInstructions().

Referenced by GetUnwindPlan().

CreateUnwindPlan_i386()

bool CompactUnwindInfo::CreateUnwindPlan_i386 ( Target & target, FunctionInfo & function_info, UnwindPlan & unwind_plan, Address pc_or_function_start )

private

Definition at line 1001 of file CompactUnwindInfo.cpp.

References lldb_private::UnwindPlan::AppendRow(), ebp, eip, lldb_private::eLazyBoolNo, lldb_private::eLazyBoolYes, lldb_private::CompactUnwindInfo::FunctionInfo::encoding, lldb::eRegisterKindEHFrame, error(), esp, EXTRACT_BITS, lldb_private::UnwindPlan::Row::GetCFAValue(), lldb_private::Address::GetLoadAddress(), lldb_private::Target::GetProcessSP(), m_objfile, lldb_private::UnwindPlan::Row::FAValue::SetIsRegisterPlusOffset(), lldb_private::UnwindPlan::SetRegisterKind(), lldb_private::UnwindPlan::Row::SetRegisterLocationToAtCFAPlusOffset(), lldb_private::UnwindPlan::Row::SetRegisterLocationToIsCFAPlusOffset(), lldb_private::UnwindPlan::SetSourcedFromCompiler(), lldb_private::UnwindPlan::SetSourceName(), lldb_private::UnwindPlan::SetUnwindPlanForSignalTrap(), lldb_private::UnwindPlan::SetUnwindPlanValidAtAllInstructions(), lldb_private::Address::Slide(), translate_to_eh_frame_regnum_i386(), lldb_private::UNWIND_X86_REG_EBP, lldb_private::UNWIND_X86_REG_EBX, lldb_private::UNWIND_X86_REG_ECX, lldb_private::UNWIND_X86_REG_EDI, lldb_private::UNWIND_X86_REG_EDX, lldb_private::UNWIND_X86_REG_ESI, lldb_private::UNWIND_X86_REG_NONE, and lldb_private::CompactUnwindInfo::FunctionInfo::valid_range_offset_start.

Referenced by GetUnwindPlan().

CreateUnwindPlan_x86_64()

bool CompactUnwindInfo::CreateUnwindPlan_x86_64 ( Target & target, FunctionInfo & function_info, UnwindPlan & unwind_plan, Address pc_or_function_start )

private

Definition at line 734 of file CompactUnwindInfo.cpp.

References lldb_private::UnwindPlan::AppendRow(), lldb_private::eLazyBoolNo, lldb_private::eLazyBoolYes, lldb_private::CompactUnwindInfo::FunctionInfo::encoding, lldb::eRegisterKindEHFrame, error(), EXTRACT_BITS, lldb_private::UnwindPlan::Row::GetCFAValue(), lldb_private::Address::GetLoadAddress(), lldb_private::Target::GetProcessSP(), m_objfile, rbp, rip, rsp, lldb_private::UnwindPlan::Row::FAValue::SetIsRegisterPlusOffset(), lldb_private::UnwindPlan::SetRegisterKind(), lldb_private::UnwindPlan::Row::SetRegisterLocationToAtCFAPlusOffset(), lldb_private::UnwindPlan::Row::SetRegisterLocationToIsCFAPlusOffset(), lldb_private::UnwindPlan::SetSourcedFromCompiler(), lldb_private::UnwindPlan::SetSourceName(), lldb_private::UnwindPlan::SetUnwindPlanForSignalTrap(), lldb_private::UnwindPlan::SetUnwindPlanValidAtAllInstructions(), lldb_private::Address::Slide(), translate_to_eh_frame_regnum_x86_64(), lldb_private::UNWIND_X86_64_REG_NONE, lldb_private::UNWIND_X86_64_REG_R12, lldb_private::UNWIND_X86_64_REG_R13, lldb_private::UNWIND_X86_64_REG_R14, lldb_private::UNWIND_X86_64_REG_R15, lldb_private::UNWIND_X86_64_REG_RBP, lldb_private::UNWIND_X86_64_REG_RBX, and lldb_private::CompactUnwindInfo::FunctionInfo::valid_range_offset_start.

Referenced by GetUnwindPlan().

GetCompactUnwindInfoForFunction()

bool CompactUnwindInfo::GetCompactUnwindInfoForFunction ( Target & target, Address address, FunctionInfo & unwind_info )

private

Definition at line 491 of file CompactUnwindInfo.cpp.

References BinarySearchCompressedSecondPage(), BinarySearchRegularSecondPage(), lldb_private::Address::Clear(), lldb_private::CompactUnwindInfo::FunctionInfo::encoding, lldb::eSectionTypeCode, EXTRACT_BITS, lldb_private::SectionList::FindSectionByType(), lldb_private::CompactUnwindInfo::UnwindIndex::function_offset, lldb_private::Address::GetFileAddress(), GetLSDAForFunctionOffset(), lldb_private::Target::GetProcessSP(), IsValid(), LLDB_INVALID_ADDRESS, LLDB_INVALID_OFFSET, lldb_private::CompactUnwindInfo::FunctionInfo::lsda_address, m_indexes, m_objfile, m_unwind_header, m_unwindinfo_data, lldb_private::CompactUnwindInfo::FunctionInfo::personality_ptr_address, lldb_private::Address::ResolveAddressUsingFileSections(), UINT32_MAX, UNWIND_SECOND_LEVEL_COMPRESSED, UNWIND_SECOND_LEVEL_REGULAR, lldb_private::CompactUnwindInfo::FunctionInfo::valid_range_offset_end, and lldb_private::CompactUnwindInfo::FunctionInfo::valid_range_offset_start.

Referenced by GetUnwindPlan().

GetLSDAForFunctionOffset()

uint32_t CompactUnwindInfo::GetLSDAForFunctionOffset ( uint32_t lsda_offset, uint32_t lsda_count, uint32_t function_offset )

private

Definition at line 382 of file CompactUnwindInfo.cpp.

References m_unwindinfo_data.

Referenced by GetCompactUnwindInfoForFunction().

GetUnwindPlan()

bool CompactUnwindInfo::GetUnwindPlan	(	Target &	target,
		Address	addr,
		UnwindPlan &	unwind_plan )

Definition at line 173 of file CompactUnwindInfo.cpp.

References CreateUnwindPlan_arm64(), CreateUnwindPlan_armv7(), CreateUnwindPlan_i386(), CreateUnwindPlan_x86_64(), lldb_private::Address::Dump(), lldb_private::Address::DumpStyleFileAddress, lldb_private::Address::DumpStyleResolvedDescriptionNoFunctionArguments, lldb_private::CompactUnwindInfo::FunctionInfo::encoding, GetCompactUnwindInfoForFunction(), lldb_private::StreamString::GetData(), lldb_private::GetLog(), lldb_private::Target::GetProcessSP(), lldb_private::Log::GetVerbose(), IsValid(), LLDB_LOGF, m_objfile, lldb_private::UnwindPlan::SetPlanValidAddressRanges(), lldb_private::Unwind, lldb_private::CompactUnwindInfo::FunctionInfo::valid_range_offset_end, and lldb_private::CompactUnwindInfo::FunctionInfo::valid_range_offset_start.

Referenced by lldb_private::FuncUnwinders::GetCompactUnwindUnwindPlan().

IsValid()

bool CompactUnwindInfo::IsValid

(

const lldb::ProcessSP &

process_sp

)

Definition at line 233 of file CompactUnwindInfo.cpp.

References lldb_private::eLazyBoolYes, m_indexes_computed, m_section_sp, m_unwindinfo_data_computed, and ScanIndex().

Referenced by GetCompactUnwindInfoForFunction(), and GetUnwindPlan().

ScanIndex()

void CompactUnwindInfo::ScanIndex ( const lldb::ProcessSP & process_sp )

private

Definition at line 245 of file CompactUnwindInfo.cpp.

References lldb_private::eLazyBoolNo, lldb_private::eLazyBoolYes, error(), lldb_private::CompactUnwindInfo::UnwindIndex::function_offset, lldb_private::GetLog(), lldb_private::CompactUnwindInfo::UnwindIndex::lsda_array_start, m_indexes, m_indexes_computed, m_mutex, m_objfile, m_section_contents_if_encrypted, m_section_sp, m_unwind_header, m_unwindinfo_data, m_unwindinfo_data_computed, lldb_private::Debugger::ReportError(), lldb_private::CompactUnwindInfo::UnwindIndex::second_level, lldb_private::CompactUnwindInfo::UnwindIndex::sentinal_entry, and lldb_private::Unwind.

Referenced by IsValid().

Member Data Documentation

m_indexes

std::vector<UnwindIndex> lldb_private::CompactUnwindInfo::m_indexes

private

Definition at line 147 of file CompactUnwindInfo.h.

Referenced by CompactUnwindInfo(), GetCompactUnwindInfoForFunction(), and ScanIndex().

m_indexes_computed

LazyBool lldb_private::CompactUnwindInfo::m_indexes_computed

private

Definition at line 149 of file CompactUnwindInfo.h.

Referenced by CompactUnwindInfo(), IsValid(), and ScanIndex().

m_mutex

std::mutex lldb_private::CompactUnwindInfo::m_mutex

private

Definition at line 146 of file CompactUnwindInfo.h.

Referenced by CompactUnwindInfo(), and ScanIndex().

m_objfile

ObjectFile& lldb_private::CompactUnwindInfo::m_objfile

private

Definition at line 139 of file CompactUnwindInfo.h.

Referenced by CompactUnwindInfo(), CreateUnwindPlan_i386(), CreateUnwindPlan_x86_64(), GetCompactUnwindInfoForFunction(), GetUnwindPlan(), and ScanIndex().

m_section_contents_if_encrypted

lldb::WritableDataBufferSP lldb_private::CompactUnwindInfo::m_section_contents_if_encrypted

private

Definition at line 142 of file CompactUnwindInfo.h.

Referenced by CompactUnwindInfo(), and ScanIndex().

m_section_sp

lldb::SectionSP lldb_private::CompactUnwindInfo::m_section_sp

private

Definition at line 140 of file CompactUnwindInfo.h.

Referenced by CompactUnwindInfo(), IsValid(), and ScanIndex().

m_unwind_header

UnwindHeader lldb_private::CompactUnwindInfo::m_unwind_header

private

Definition at line 158 of file CompactUnwindInfo.h.

Referenced by CompactUnwindInfo(), GetCompactUnwindInfoForFunction(), and ScanIndex().

m_unwindinfo_data

DataExtractor lldb_private::CompactUnwindInfo::m_unwindinfo_data

private

Definition at line 154 of file CompactUnwindInfo.h.

Referenced by BinarySearchCompressedSecondPage(), BinarySearchRegularSecondPage(), CompactUnwindInfo(), GetCompactUnwindInfoForFunction(), GetLSDAForFunctionOffset(), and ScanIndex().

m_unwindinfo_data_computed

bool lldb_private::CompactUnwindInfo::m_unwindinfo_data_computed

private

Definition at line 155 of file CompactUnwindInfo.h.

Referenced by CompactUnwindInfo(), IsValid(), and ScanIndex().

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The documentation for this class was generated from the following files:

• CompactUnwindInfo.h
• CompactUnwindInfo.cpp