forked from OSchip/llvm-project
1127 lines
38 KiB
C++
1127 lines
38 KiB
C++
//===-- Address.cpp ---------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Core/Address.h"
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// C Includes
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// C++ Includes
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#include "llvm/ADT/Triple.h"
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Core/Module.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Symbol/Block.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/Variable.h"
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#include "lldb/Symbol/VariableList.h"
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#include "lldb/Target/ExecutionContext.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/SectionLoadList.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Symbol/SymbolVendor.h"
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using namespace lldb;
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using namespace lldb_private;
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static size_t
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ReadBytes (ExecutionContextScope *exe_scope, const Address &address, void *dst, size_t dst_len)
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{
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if (exe_scope == nullptr)
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return 0;
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TargetSP target_sp (exe_scope->CalculateTarget());
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if (target_sp)
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{
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Error error;
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bool prefer_file_cache = false;
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return target_sp->ReadMemory (address, prefer_file_cache, dst, dst_len, error);
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}
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return 0;
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}
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static bool
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GetByteOrderAndAddressSize (ExecutionContextScope *exe_scope, const Address &address, ByteOrder& byte_order, uint32_t& addr_size)
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{
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byte_order = eByteOrderInvalid;
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addr_size = 0;
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if (exe_scope == nullptr)
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return false;
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TargetSP target_sp (exe_scope->CalculateTarget());
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if (target_sp)
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{
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byte_order = target_sp->GetArchitecture().GetByteOrder();
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addr_size = target_sp->GetArchitecture().GetAddressByteSize();
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}
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if (byte_order == eByteOrderInvalid || addr_size == 0)
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{
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ModuleSP module_sp (address.GetModule());
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if (module_sp)
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{
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byte_order = module_sp->GetArchitecture().GetByteOrder();
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addr_size = module_sp->GetArchitecture().GetAddressByteSize();
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}
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}
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return byte_order != eByteOrderInvalid && addr_size != 0;
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}
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static uint64_t
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ReadUIntMax64 (ExecutionContextScope *exe_scope, const Address &address, uint32_t byte_size, bool &success)
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{
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uint64_t uval64 = 0;
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if (exe_scope == nullptr || byte_size > sizeof(uint64_t))
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{
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success = false;
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return 0;
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}
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uint64_t buf = 0;
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success = ReadBytes (exe_scope, address, &buf, byte_size) == byte_size;
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if (success)
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{
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ByteOrder byte_order = eByteOrderInvalid;
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uint32_t addr_size = 0;
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if (GetByteOrderAndAddressSize (exe_scope, address, byte_order, addr_size))
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{
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DataExtractor data (&buf, sizeof(buf), byte_order, addr_size);
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lldb::offset_t offset = 0;
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uval64 = data.GetU64(&offset);
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}
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else
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success = false;
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}
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return uval64;
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}
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static bool
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ReadAddress (ExecutionContextScope *exe_scope, const Address &address, uint32_t pointer_size, Address &deref_so_addr)
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{
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if (exe_scope == nullptr)
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return false;
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bool success = false;
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addr_t deref_addr = ReadUIntMax64 (exe_scope, address, pointer_size, success);
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if (success)
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{
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ExecutionContext exe_ctx;
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exe_scope->CalculateExecutionContext(exe_ctx);
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// If we have any sections that are loaded, try and resolve using the
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// section load list
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Target *target = exe_ctx.GetTargetPtr();
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if (target && !target->GetSectionLoadList().IsEmpty())
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{
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if (target->GetSectionLoadList().ResolveLoadAddress (deref_addr, deref_so_addr))
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return true;
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}
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else
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{
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// If we were not running, yet able to read an integer, we must
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// have a module
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ModuleSP module_sp (address.GetModule());
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assert (module_sp);
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if (module_sp->ResolveFileAddress(deref_addr, deref_so_addr))
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return true;
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}
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// We couldn't make "deref_addr" into a section offset value, but we were
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// able to read the address, so we return a section offset address with
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// no section and "deref_addr" as the offset (address).
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deref_so_addr.SetRawAddress(deref_addr);
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return true;
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}
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return false;
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}
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static bool
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DumpUInt (ExecutionContextScope *exe_scope, const Address &address, uint32_t byte_size, Stream* strm)
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{
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if (exe_scope == nullptr || byte_size == 0)
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return 0;
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std::vector<uint8_t> buf(byte_size, 0);
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if (ReadBytes (exe_scope, address, &buf[0], buf.size()) == buf.size())
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{
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ByteOrder byte_order = eByteOrderInvalid;
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uint32_t addr_size = 0;
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if (GetByteOrderAndAddressSize (exe_scope, address, byte_order, addr_size))
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{
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DataExtractor data (&buf.front(), buf.size(), byte_order, addr_size);
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data.Dump (strm,
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0, // Start offset in "data"
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eFormatHex, // Print as characters
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buf.size(), // Size of item
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1, // Items count
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UINT32_MAX, // num per line
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LLDB_INVALID_ADDRESS,// base address
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0, // bitfield bit size
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0); // bitfield bit offset
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return true;
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}
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}
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return false;
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}
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static size_t
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ReadCStringFromMemory (ExecutionContextScope *exe_scope, const Address &address, Stream *strm)
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{
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if (exe_scope == nullptr)
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return 0;
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const size_t k_buf_len = 256;
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char buf[k_buf_len+1];
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buf[k_buf_len] = '\0'; // NULL terminate
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// Byte order and address size don't matter for C string dumping..
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DataExtractor data (buf, sizeof(buf), endian::InlHostByteOrder(), 4);
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size_t total_len = 0;
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size_t bytes_read;
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Address curr_address(address);
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strm->PutChar ('"');
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while ((bytes_read = ReadBytes (exe_scope, curr_address, buf, k_buf_len)) > 0)
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{
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size_t len = strlen(buf);
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if (len == 0)
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break;
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if (len > bytes_read)
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len = bytes_read;
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data.Dump (strm,
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0, // Start offset in "data"
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eFormatChar, // Print as characters
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1, // Size of item (1 byte for a char!)
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len, // How many bytes to print?
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UINT32_MAX, // num per line
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LLDB_INVALID_ADDRESS,// base address
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0, // bitfield bit size
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0); // bitfield bit offset
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total_len += bytes_read;
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if (len < k_buf_len)
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break;
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curr_address.SetOffset (curr_address.GetOffset() + bytes_read);
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}
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strm->PutChar ('"');
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return total_len;
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}
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Address::Address (lldb::addr_t abs_addr) :
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m_section_wp (),
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m_offset (abs_addr)
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{
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}
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Address::Address (addr_t address, const SectionList *section_list) :
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m_section_wp (),
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m_offset (LLDB_INVALID_ADDRESS)
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{
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ResolveAddressUsingFileSections(address, section_list);
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}
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const Address&
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Address::operator= (const Address& rhs)
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{
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if (this != &rhs)
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{
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m_section_wp = rhs.m_section_wp;
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m_offset = rhs.m_offset.load();
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}
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return *this;
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}
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bool
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Address::ResolveAddressUsingFileSections (addr_t file_addr, const SectionList *section_list)
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{
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if (section_list)
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{
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SectionSP section_sp (section_list->FindSectionContainingFileAddress(file_addr));
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m_section_wp = section_sp;
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if (section_sp)
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{
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assert( section_sp->ContainsFileAddress(file_addr) );
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m_offset = file_addr - section_sp->GetFileAddress();
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return true; // Successfully transformed addr into a section offset address
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}
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}
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m_offset = file_addr;
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return false; // Failed to resolve this address to a section offset value
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}
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ModuleSP
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Address::GetModule () const
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{
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lldb::ModuleSP module_sp;
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SectionSP section_sp (GetSection());
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if (section_sp)
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module_sp = section_sp->GetModule();
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return module_sp;
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}
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addr_t
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Address::GetFileAddress () const
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{
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SectionSP section_sp (GetSection());
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if (section_sp)
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{
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addr_t sect_file_addr = section_sp->GetFileAddress();
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if (sect_file_addr == LLDB_INVALID_ADDRESS)
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{
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// Section isn't resolved, we can't return a valid file address
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return LLDB_INVALID_ADDRESS;
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}
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// We have a valid file range, so we can return the file based
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// address by adding the file base address to our offset
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return sect_file_addr + m_offset;
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}
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else if (SectionWasDeletedPrivate())
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{
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// Used to have a valid section but it got deleted so the
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// offset doesn't mean anything without the section
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return LLDB_INVALID_ADDRESS;
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}
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// No section, we just return the offset since it is the value in this case
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return m_offset;
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}
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addr_t
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Address::GetLoadAddress (Target *target) const
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{
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SectionSP section_sp (GetSection());
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if (section_sp)
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{
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if (target)
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{
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addr_t sect_load_addr = section_sp->GetLoadBaseAddress (target);
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if (sect_load_addr != LLDB_INVALID_ADDRESS)
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{
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// We have a valid file range, so we can return the file based
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// address by adding the file base address to our offset
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return sect_load_addr + m_offset;
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}
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}
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}
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else if (SectionWasDeletedPrivate())
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{
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// Used to have a valid section but it got deleted so the
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// offset doesn't mean anything without the section
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return LLDB_INVALID_ADDRESS;
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}
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else
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{
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// We don't have a section so the offset is the load address
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return m_offset;
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}
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// The section isn't resolved or an invalid target was passed in
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// so we can't return a valid load address.
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return LLDB_INVALID_ADDRESS;
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}
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addr_t
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Address::GetCallableLoadAddress (Target *target, bool is_indirect) const
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{
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addr_t code_addr = LLDB_INVALID_ADDRESS;
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if (is_indirect && target)
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{
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ProcessSP processSP = target->GetProcessSP();
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Error error;
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if (processSP)
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{
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code_addr = processSP->ResolveIndirectFunction(this, error);
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if (!error.Success())
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code_addr = LLDB_INVALID_ADDRESS;
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}
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}
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else
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{
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code_addr = GetLoadAddress (target);
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}
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if (code_addr == LLDB_INVALID_ADDRESS)
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return code_addr;
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if (target)
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return target->GetCallableLoadAddress (code_addr, GetAddressClass());
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return code_addr;
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}
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bool
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Address::SetCallableLoadAddress (lldb::addr_t load_addr, Target *target)
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{
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if (SetLoadAddress (load_addr, target))
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{
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if (target)
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m_offset = target->GetCallableLoadAddress(m_offset, GetAddressClass());
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return true;
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}
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return false;
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}
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addr_t
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Address::GetOpcodeLoadAddress (Target *target, AddressClass addr_class) const
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{
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addr_t code_addr = GetLoadAddress (target);
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if (code_addr != LLDB_INVALID_ADDRESS)
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{
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if (addr_class == eAddressClassInvalid)
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addr_class = GetAddressClass();
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code_addr = target->GetOpcodeLoadAddress (code_addr, addr_class);
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}
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return code_addr;
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}
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bool
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Address::SetOpcodeLoadAddress (lldb::addr_t load_addr, Target *target, AddressClass addr_class)
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{
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if (SetLoadAddress (load_addr, target))
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{
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if (target)
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{
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if (addr_class == eAddressClassInvalid)
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addr_class = GetAddressClass();
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m_offset = target->GetOpcodeLoadAddress (m_offset, addr_class);
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}
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return true;
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}
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return false;
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}
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bool
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Address::Dump (Stream *s, ExecutionContextScope *exe_scope, DumpStyle style, DumpStyle fallback_style, uint32_t addr_size) const
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{
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// If the section was nullptr, only load address is going to work unless we are
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// trying to deref a pointer
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SectionSP section_sp (GetSection());
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if (!section_sp && style != DumpStyleResolvedPointerDescription)
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style = DumpStyleLoadAddress;
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ExecutionContext exe_ctx (exe_scope);
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Target *target = exe_ctx.GetTargetPtr();
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// If addr_byte_size is UINT32_MAX, then determine the correct address
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// byte size for the process or default to the size of addr_t
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if (addr_size == UINT32_MAX)
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{
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if (target)
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addr_size = target->GetArchitecture().GetAddressByteSize ();
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else
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addr_size = sizeof(addr_t);
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}
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Address so_addr;
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switch (style)
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{
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case DumpStyleInvalid:
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return false;
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case DumpStyleSectionNameOffset:
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if (section_sp)
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{
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section_sp->DumpName(s);
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s->Printf (" + %" PRIu64, m_offset.load());
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}
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else
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{
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s->Address(m_offset, addr_size);
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}
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break;
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case DumpStyleSectionPointerOffset:
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s->Printf("(Section *)%p + ", static_cast<void*>(section_sp.get()));
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s->Address(m_offset, addr_size);
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break;
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case DumpStyleModuleWithFileAddress:
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if (section_sp)
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{
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ModuleSP module_sp = section_sp->GetModule();
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if (module_sp)
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s->Printf("%s[", module_sp->GetFileSpec().GetFilename().AsCString("<Unknown>"));
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else
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s->Printf("%s[","<Unknown>");
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}
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LLVM_FALLTHROUGH;
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case DumpStyleFileAddress:
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{
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addr_t file_addr = GetFileAddress();
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if (file_addr == LLDB_INVALID_ADDRESS)
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{
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if (fallback_style != DumpStyleInvalid)
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return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
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return false;
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}
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s->Address (file_addr, addr_size);
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if (style == DumpStyleModuleWithFileAddress && section_sp)
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s->PutChar(']');
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}
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break;
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case DumpStyleLoadAddress:
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{
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addr_t load_addr = GetLoadAddress (target);
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/*
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* MIPS:
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* Display address in compressed form for MIPS16 or microMIPS
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* if the address belongs to eAddressClassCodeAlternateISA.
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*/
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if (target)
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{
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const llvm::Triple::ArchType llvm_arch = target->GetArchitecture().GetMachine();
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if (llvm_arch == llvm::Triple::mips || llvm_arch == llvm::Triple::mipsel
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|| llvm_arch == llvm::Triple::mips64 || llvm_arch == llvm::Triple::mips64el)
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load_addr = GetCallableLoadAddress (target);
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}
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if (load_addr == LLDB_INVALID_ADDRESS)
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{
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if (fallback_style != DumpStyleInvalid)
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return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
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return false;
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}
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s->Address (load_addr, addr_size);
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}
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break;
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case DumpStyleResolvedDescription:
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case DumpStyleResolvedDescriptionNoModule:
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case DumpStyleResolvedDescriptionNoFunctionArguments:
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case DumpStyleNoFunctionName:
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if (IsSectionOffset())
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{
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uint32_t pointer_size = 4;
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ModuleSP module_sp (GetModule());
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if (target)
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pointer_size = target->GetArchitecture().GetAddressByteSize();
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else if (module_sp)
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pointer_size = module_sp->GetArchitecture().GetAddressByteSize();
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bool showed_info = false;
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if (section_sp)
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{
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SectionType sect_type = section_sp->GetType();
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switch (sect_type)
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{
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case eSectionTypeData:
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if (module_sp)
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{
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SymbolVendor *sym_vendor = module_sp->GetSymbolVendor();
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if (sym_vendor)
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{
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Symtab *symtab = sym_vendor->GetSymtab();
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if (symtab)
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{
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const addr_t file_Addr = GetFileAddress();
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Symbol *symbol = symtab->FindSymbolContainingFileAddress (file_Addr);
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if (symbol)
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{
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const char *symbol_name = symbol->GetName().AsCString();
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if (symbol_name)
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{
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s->PutCString(symbol_name);
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addr_t delta = file_Addr - symbol->GetAddressRef().GetFileAddress();
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if (delta)
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s->Printf(" + %" PRIu64, delta);
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showed_info = true;
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}
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}
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}
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}
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}
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break;
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case eSectionTypeDataCString:
|
|
// Read the C string from memory and display it
|
|
showed_info = true;
|
|
ReadCStringFromMemory (exe_scope, *this, s);
|
|
break;
|
|
|
|
case eSectionTypeDataCStringPointers:
|
|
if (ReadAddress(exe_scope, *this, pointer_size, so_addr))
|
|
{
|
|
#if VERBOSE_OUTPUT
|
|
s->PutCString("(char *)");
|
|
so_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
|
|
s->PutCString(": ");
|
|
#endif
|
|
showed_info = true;
|
|
ReadCStringFromMemory(exe_scope, so_addr, s);
|
|
}
|
|
break;
|
|
|
|
case eSectionTypeDataObjCMessageRefs:
|
|
if (ReadAddress(exe_scope, *this, pointer_size, so_addr))
|
|
{
|
|
if (target && so_addr.IsSectionOffset())
|
|
{
|
|
SymbolContext func_sc;
|
|
target->GetImages().ResolveSymbolContextForAddress(so_addr,
|
|
eSymbolContextEverything,
|
|
func_sc);
|
|
if (func_sc.function != nullptr || func_sc.symbol != nullptr)
|
|
{
|
|
showed_info = true;
|
|
#if VERBOSE_OUTPUT
|
|
s->PutCString ("(objc_msgref *) -> { (func*)");
|
|
so_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
|
|
#else
|
|
s->PutCString ("{ ");
|
|
#endif
|
|
Address cstr_addr(*this);
|
|
cstr_addr.SetOffset(cstr_addr.GetOffset() + pointer_size);
|
|
func_sc.DumpStopContext(s, exe_scope, so_addr, true, true, false, true, true);
|
|
if (ReadAddress(exe_scope, cstr_addr, pointer_size, so_addr))
|
|
{
|
|
#if VERBOSE_OUTPUT
|
|
s->PutCString("), (char *)");
|
|
so_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
|
|
s->PutCString(" (");
|
|
#else
|
|
s->PutCString(", ");
|
|
#endif
|
|
ReadCStringFromMemory (exe_scope, so_addr, s);
|
|
}
|
|
#if VERBOSE_OUTPUT
|
|
s->PutCString(") }");
|
|
#else
|
|
s->PutCString(" }");
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eSectionTypeDataObjCCFStrings:
|
|
{
|
|
Address cfstring_data_addr(*this);
|
|
cfstring_data_addr.SetOffset(cfstring_data_addr.GetOffset() + (2 * pointer_size));
|
|
if (ReadAddress (exe_scope, cfstring_data_addr, pointer_size, so_addr))
|
|
{
|
|
#if VERBOSE_OUTPUT
|
|
s->PutCString("(CFString *) ");
|
|
cfstring_data_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
|
|
s->PutCString(" -> @");
|
|
#else
|
|
s->PutChar('@');
|
|
#endif
|
|
if (so_addr.Dump(s, exe_scope, DumpStyleResolvedDescription))
|
|
showed_info = true;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case eSectionTypeData4:
|
|
// Read the 4 byte data and display it
|
|
showed_info = true;
|
|
s->PutCString("(uint32_t) ");
|
|
DumpUInt (exe_scope, *this, 4, s);
|
|
break;
|
|
|
|
case eSectionTypeData8:
|
|
// Read the 8 byte data and display it
|
|
showed_info = true;
|
|
s->PutCString("(uint64_t) ");
|
|
DumpUInt (exe_scope, *this, 8, s);
|
|
break;
|
|
|
|
case eSectionTypeData16:
|
|
// Read the 16 byte data and display it
|
|
showed_info = true;
|
|
s->PutCString("(uint128_t) ");
|
|
DumpUInt (exe_scope, *this, 16, s);
|
|
break;
|
|
|
|
case eSectionTypeDataPointers:
|
|
// Read the pointer data and display it
|
|
if (ReadAddress(exe_scope, *this, pointer_size, so_addr))
|
|
{
|
|
s->PutCString ("(void *)");
|
|
so_addr.Dump(s, exe_scope, DumpStyleLoadAddress, DumpStyleFileAddress);
|
|
|
|
showed_info = true;
|
|
if (so_addr.IsSectionOffset())
|
|
{
|
|
SymbolContext pointer_sc;
|
|
if (target)
|
|
{
|
|
target->GetImages().ResolveSymbolContextForAddress(so_addr,
|
|
eSymbolContextEverything,
|
|
pointer_sc);
|
|
if (pointer_sc.function != nullptr || pointer_sc.symbol != nullptr)
|
|
{
|
|
s->PutCString(": ");
|
|
pointer_sc.DumpStopContext(s, exe_scope, so_addr, true, false, false, true, true);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!showed_info)
|
|
{
|
|
if (module_sp)
|
|
{
|
|
SymbolContext sc;
|
|
module_sp->ResolveSymbolContextForAddress(*this, eSymbolContextEverything | eSymbolContextVariable, sc);
|
|
if (sc.function || sc.symbol)
|
|
{
|
|
bool show_stop_context = true;
|
|
const bool show_module = (style == DumpStyleResolvedDescription);
|
|
const bool show_fullpaths = false;
|
|
const bool show_inlined_frames = true;
|
|
const bool show_function_arguments = (style != DumpStyleResolvedDescriptionNoFunctionArguments);
|
|
const bool show_function_name = (style != DumpStyleNoFunctionName);
|
|
if (sc.function == nullptr && sc.symbol != nullptr)
|
|
{
|
|
// If we have just a symbol make sure it is in the right section
|
|
if (sc.symbol->ValueIsAddress())
|
|
{
|
|
if (sc.symbol->GetAddressRef().GetSection() != GetSection())
|
|
{
|
|
// don't show the module if the symbol is a trampoline symbol
|
|
show_stop_context = false;
|
|
}
|
|
}
|
|
}
|
|
if (show_stop_context)
|
|
{
|
|
// We have a function or a symbol from the same
|
|
// sections as this address.
|
|
sc.DumpStopContext (s,
|
|
exe_scope,
|
|
*this,
|
|
show_fullpaths,
|
|
show_module,
|
|
show_inlined_frames,
|
|
show_function_arguments,
|
|
show_function_name);
|
|
}
|
|
else
|
|
{
|
|
// We found a symbol but it was in a different
|
|
// section so it isn't the symbol we should be
|
|
// showing, just show the section name + offset
|
|
Dump (s, exe_scope, DumpStyleSectionNameOffset);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (fallback_style != DumpStyleInvalid)
|
|
return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
|
|
return false;
|
|
}
|
|
break;
|
|
|
|
case DumpStyleDetailedSymbolContext:
|
|
if (IsSectionOffset())
|
|
{
|
|
ModuleSP module_sp (GetModule());
|
|
if (module_sp)
|
|
{
|
|
SymbolContext sc;
|
|
module_sp->ResolveSymbolContextForAddress(*this, eSymbolContextEverything | eSymbolContextVariable, sc);
|
|
if (sc.symbol)
|
|
{
|
|
// If we have just a symbol make sure it is in the same section
|
|
// as our address. If it isn't, then we might have just found
|
|
// the last symbol that came before the address that we are
|
|
// looking up that has nothing to do with our address lookup.
|
|
if (sc.symbol->ValueIsAddress() && sc.symbol->GetAddressRef().GetSection() != GetSection())
|
|
sc.symbol = nullptr;
|
|
}
|
|
sc.GetDescription(s, eDescriptionLevelBrief, target);
|
|
|
|
if (sc.block)
|
|
{
|
|
bool can_create = true;
|
|
bool get_parent_variables = true;
|
|
bool stop_if_block_is_inlined_function = false;
|
|
VariableList variable_list;
|
|
sc.block->AppendVariables (can_create,
|
|
get_parent_variables,
|
|
stop_if_block_is_inlined_function,
|
|
[](Variable*) { return true; },
|
|
&variable_list);
|
|
|
|
const size_t num_variables = variable_list.GetSize();
|
|
for (size_t var_idx = 0; var_idx < num_variables; ++var_idx)
|
|
{
|
|
Variable *var = variable_list.GetVariableAtIndex (var_idx).get();
|
|
if (var && var->LocationIsValidForAddress (*this))
|
|
{
|
|
s->Indent();
|
|
s->Printf (" Variable: id = {0x%8.8" PRIx64 "}, name = \"%s\"",
|
|
var->GetID(),
|
|
var->GetName().GetCString());
|
|
Type *type = var->GetType();
|
|
if (type)
|
|
s->Printf(", type = \"%s\"", type->GetName().GetCString());
|
|
else
|
|
s->PutCString(", type = <unknown>");
|
|
s->PutCString(", location = ");
|
|
var->DumpLocationForAddress(s, *this);
|
|
s->PutCString(", decl = ");
|
|
var->GetDeclaration().DumpStopContext(s, false);
|
|
s->EOL();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (fallback_style != DumpStyleInvalid)
|
|
return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
|
|
return false;
|
|
}
|
|
break;
|
|
|
|
case DumpStyleResolvedPointerDescription:
|
|
{
|
|
Process *process = exe_ctx.GetProcessPtr();
|
|
if (process)
|
|
{
|
|
addr_t load_addr = GetLoadAddress (target);
|
|
if (load_addr != LLDB_INVALID_ADDRESS)
|
|
{
|
|
Error memory_error;
|
|
addr_t dereferenced_load_addr = process->ReadPointerFromMemory(load_addr, memory_error);
|
|
if (dereferenced_load_addr != LLDB_INVALID_ADDRESS)
|
|
{
|
|
Address dereferenced_addr;
|
|
if (dereferenced_addr.SetLoadAddress(dereferenced_load_addr, target))
|
|
{
|
|
StreamString strm;
|
|
if (dereferenced_addr.Dump (&strm, exe_scope, DumpStyleResolvedDescription, DumpStyleInvalid, addr_size))
|
|
{
|
|
s->Address (dereferenced_load_addr, addr_size, " -> ", " ");
|
|
s->Write(strm.GetData(), strm.GetSize());
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (fallback_style != DumpStyleInvalid)
|
|
return Dump (s, exe_scope, fallback_style, DumpStyleInvalid, addr_size);
|
|
return false;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
Address::SectionWasDeleted() const
|
|
{
|
|
if (GetSection())
|
|
return false;
|
|
return SectionWasDeletedPrivate();
|
|
}
|
|
|
|
bool
|
|
Address::SectionWasDeletedPrivate() const
|
|
{
|
|
lldb::SectionWP empty_section_wp;
|
|
|
|
// If either call to "std::weak_ptr::owner_before(...) value returns true, this
|
|
// indicates that m_section_wp once contained (possibly still does) a reference
|
|
// to a valid shared pointer. This helps us know if we had a valid reference to
|
|
// a section which is now invalid because the module it was in was unloaded/deleted,
|
|
// or if the address doesn't have a valid reference to a section.
|
|
return empty_section_wp.owner_before(m_section_wp) || m_section_wp.owner_before(empty_section_wp);
|
|
}
|
|
|
|
uint32_t
|
|
Address::CalculateSymbolContext (SymbolContext *sc, uint32_t resolve_scope) const
|
|
{
|
|
sc->Clear(false);
|
|
// Absolute addresses don't have enough information to reconstruct even their target.
|
|
|
|
SectionSP section_sp (GetSection());
|
|
if (section_sp)
|
|
{
|
|
ModuleSP module_sp (section_sp->GetModule());
|
|
if (module_sp)
|
|
{
|
|
sc->module_sp = module_sp;
|
|
if (sc->module_sp)
|
|
return sc->module_sp->ResolveSymbolContextForAddress (*this, resolve_scope, *sc);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
ModuleSP
|
|
Address::CalculateSymbolContextModule () const
|
|
{
|
|
SectionSP section_sp (GetSection());
|
|
if (section_sp)
|
|
return section_sp->GetModule();
|
|
return ModuleSP();
|
|
}
|
|
|
|
CompileUnit *
|
|
Address::CalculateSymbolContextCompileUnit () const
|
|
{
|
|
SectionSP section_sp (GetSection());
|
|
if (section_sp)
|
|
{
|
|
SymbolContext sc;
|
|
sc.module_sp = section_sp->GetModule();
|
|
if (sc.module_sp)
|
|
{
|
|
sc.module_sp->ResolveSymbolContextForAddress (*this, eSymbolContextCompUnit, sc);
|
|
return sc.comp_unit;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
Function *
|
|
Address::CalculateSymbolContextFunction () const
|
|
{
|
|
SectionSP section_sp (GetSection());
|
|
if (section_sp)
|
|
{
|
|
SymbolContext sc;
|
|
sc.module_sp = section_sp->GetModule();
|
|
if (sc.module_sp)
|
|
{
|
|
sc.module_sp->ResolveSymbolContextForAddress (*this, eSymbolContextFunction, sc);
|
|
return sc.function;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
Block *
|
|
Address::CalculateSymbolContextBlock () const
|
|
{
|
|
SectionSP section_sp (GetSection());
|
|
if (section_sp)
|
|
{
|
|
SymbolContext sc;
|
|
sc.module_sp = section_sp->GetModule();
|
|
if (sc.module_sp)
|
|
{
|
|
sc.module_sp->ResolveSymbolContextForAddress (*this, eSymbolContextBlock, sc);
|
|
return sc.block;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
Symbol *
|
|
Address::CalculateSymbolContextSymbol () const
|
|
{
|
|
SectionSP section_sp (GetSection());
|
|
if (section_sp)
|
|
{
|
|
SymbolContext sc;
|
|
sc.module_sp = section_sp->GetModule();
|
|
if (sc.module_sp)
|
|
{
|
|
sc.module_sp->ResolveSymbolContextForAddress (*this, eSymbolContextSymbol, sc);
|
|
return sc.symbol;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool
|
|
Address::CalculateSymbolContextLineEntry (LineEntry &line_entry) const
|
|
{
|
|
SectionSP section_sp (GetSection());
|
|
if (section_sp)
|
|
{
|
|
SymbolContext sc;
|
|
sc.module_sp = section_sp->GetModule();
|
|
if (sc.module_sp)
|
|
{
|
|
sc.module_sp->ResolveSymbolContextForAddress (*this, eSymbolContextLineEntry, sc);
|
|
if (sc.line_entry.IsValid())
|
|
{
|
|
line_entry = sc.line_entry;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
line_entry.Clear();
|
|
return false;
|
|
}
|
|
|
|
int
|
|
Address::CompareFileAddress (const Address& a, const Address& b)
|
|
{
|
|
addr_t a_file_addr = a.GetFileAddress();
|
|
addr_t b_file_addr = b.GetFileAddress();
|
|
if (a_file_addr < b_file_addr)
|
|
return -1;
|
|
if (a_file_addr > b_file_addr)
|
|
return +1;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
Address::CompareLoadAddress (const Address& a, const Address& b, Target *target)
|
|
{
|
|
assert(target != nullptr);
|
|
addr_t a_load_addr = a.GetLoadAddress (target);
|
|
addr_t b_load_addr = b.GetLoadAddress (target);
|
|
if (a_load_addr < b_load_addr)
|
|
return -1;
|
|
if (a_load_addr > b_load_addr)
|
|
return +1;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
Address::CompareModulePointerAndOffset (const Address& a, const Address& b)
|
|
{
|
|
ModuleSP a_module_sp (a.GetModule());
|
|
ModuleSP b_module_sp (b.GetModule());
|
|
Module *a_module = a_module_sp.get();
|
|
Module *b_module = b_module_sp.get();
|
|
if (a_module < b_module)
|
|
return -1;
|
|
if (a_module > b_module)
|
|
return +1;
|
|
// Modules are the same, just compare the file address since they should
|
|
// be unique
|
|
addr_t a_file_addr = a.GetFileAddress();
|
|
addr_t b_file_addr = b.GetFileAddress();
|
|
if (a_file_addr < b_file_addr)
|
|
return -1;
|
|
if (a_file_addr > b_file_addr)
|
|
return +1;
|
|
return 0;
|
|
}
|
|
|
|
size_t
|
|
Address::MemorySize () const
|
|
{
|
|
// Noting special for the memory size of a single Address object,
|
|
// it is just the size of itself.
|
|
return sizeof(Address);
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// NOTE: Be careful using this operator. It can correctly compare two
|
|
// addresses from the same Module correctly. It can't compare two
|
|
// addresses from different modules in any meaningful way, but it will
|
|
// compare the module pointers.
|
|
//
|
|
// To sum things up:
|
|
// - works great for addresses within the same module
|
|
// - it works for addresses across multiple modules, but don't expect the
|
|
// address results to make much sense
|
|
//
|
|
// This basically lets Address objects be used in ordered collection
|
|
// classes.
|
|
//----------------------------------------------------------------------
|
|
|
|
bool
|
|
lldb_private::operator< (const Address& lhs, const Address& rhs)
|
|
{
|
|
ModuleSP lhs_module_sp (lhs.GetModule());
|
|
ModuleSP rhs_module_sp (rhs.GetModule());
|
|
Module *lhs_module = lhs_module_sp.get();
|
|
Module *rhs_module = rhs_module_sp.get();
|
|
if (lhs_module == rhs_module)
|
|
{
|
|
// Addresses are in the same module, just compare the file addresses
|
|
return lhs.GetFileAddress() < rhs.GetFileAddress();
|
|
}
|
|
else
|
|
{
|
|
// The addresses are from different modules, just use the module
|
|
// pointer value to get consistent ordering
|
|
return lhs_module < rhs_module;
|
|
}
|
|
}
|
|
|
|
bool
|
|
lldb_private::operator> (const Address& lhs, const Address& rhs)
|
|
{
|
|
ModuleSP lhs_module_sp (lhs.GetModule());
|
|
ModuleSP rhs_module_sp (rhs.GetModule());
|
|
Module *lhs_module = lhs_module_sp.get();
|
|
Module *rhs_module = rhs_module_sp.get();
|
|
if (lhs_module == rhs_module)
|
|
{
|
|
// Addresses are in the same module, just compare the file addresses
|
|
return lhs.GetFileAddress() > rhs.GetFileAddress();
|
|
}
|
|
else
|
|
{
|
|
// The addresses are from different modules, just use the module
|
|
// pointer value to get consistent ordering
|
|
return lhs_module > rhs_module;
|
|
}
|
|
}
|
|
|
|
// The operator == checks for exact equality only (same section, same offset)
|
|
bool
|
|
lldb_private::operator== (const Address& a, const Address& rhs)
|
|
{
|
|
return a.GetOffset() == rhs.GetOffset() &&
|
|
a.GetSection() == rhs.GetSection();
|
|
}
|
|
|
|
// The operator != checks for exact inequality only (differing section, or
|
|
// different offset)
|
|
bool
|
|
lldb_private::operator!= (const Address& a, const Address& rhs)
|
|
{
|
|
return a.GetOffset() != rhs.GetOffset() ||
|
|
a.GetSection() != rhs.GetSection();
|
|
}
|
|
|
|
AddressClass
|
|
Address::GetAddressClass () const
|
|
{
|
|
ModuleSP module_sp (GetModule());
|
|
if (module_sp)
|
|
{
|
|
ObjectFile *obj_file = module_sp->GetObjectFile();
|
|
if (obj_file)
|
|
{
|
|
// Give the symbol vendor a chance to add to the unified section list.
|
|
module_sp->GetSymbolVendor();
|
|
return obj_file->GetAddressClass (GetFileAddress());
|
|
}
|
|
}
|
|
return eAddressClassUnknown;
|
|
}
|
|
|
|
bool
|
|
Address::SetLoadAddress (lldb::addr_t load_addr, Target *target)
|
|
{
|
|
if (target && target->GetSectionLoadList().ResolveLoadAddress(load_addr, *this))
|
|
return true;
|
|
m_section_wp.reset();
|
|
m_offset = load_addr;
|
|
return false;
|
|
}
|