1 //===-- AddressRange.cpp ----------------------------------------*- C++ -*-===//
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 #include "lldb/Core/AddressRange.h"
10 #include "lldb/Core/Module.h"
11 #include "lldb/Target/Target.h"
12 #include "lldb/Utility/ConstString.h"
13 #include "lldb/Utility/FileSpec.h"
14 #include "lldb/Utility/Stream.h"
15 #include "lldb/lldb-defines.h"
17 #include "llvm/Support/Compiler.h"
23 namespace lldb_private {
28 using namespace lldb_private;
30 AddressRange::AddressRange() : m_base_addr(), m_byte_size(0) {}
32 AddressRange::AddressRange(addr_t file_addr, addr_t byte_size,
33 const SectionList *section_list)
34 : m_base_addr(file_addr, section_list), m_byte_size(byte_size) {}
36 AddressRange::AddressRange(const lldb::SectionSP §ion, addr_t offset,
38 : m_base_addr(section, offset), m_byte_size(byte_size) {}
40 AddressRange::AddressRange(const Address &so_addr, addr_t byte_size)
41 : m_base_addr(so_addr), m_byte_size(byte_size) {}
43 AddressRange::~AddressRange() {}
46 // AddressRange::Contains (const Address &addr) const
48 // const addr_t byte_size = GetByteSize();
50 // return addr.GetSection() == m_base_addr.GetSection() &&
51 // (addr.GetOffset() - m_base_addr.GetOffset()) < byte_size;
55 // AddressRange::Contains (const Address *addr) const
58 // return Contains (*addr);
62 bool AddressRange::ContainsFileAddress(const Address &addr) const {
63 if (addr.GetSection() == m_base_addr.GetSection())
64 return (addr.GetOffset() - m_base_addr.GetOffset()) < GetByteSize();
65 addr_t file_base_addr = GetBaseAddress().GetFileAddress();
66 if (file_base_addr == LLDB_INVALID_ADDRESS)
69 addr_t file_addr = addr.GetFileAddress();
70 if (file_addr == LLDB_INVALID_ADDRESS)
73 if (file_base_addr <= file_addr)
74 return (file_addr - file_base_addr) < GetByteSize();
79 bool AddressRange::ContainsFileAddress(addr_t file_addr) const {
80 if (file_addr == LLDB_INVALID_ADDRESS)
83 addr_t file_base_addr = GetBaseAddress().GetFileAddress();
84 if (file_base_addr == LLDB_INVALID_ADDRESS)
87 if (file_base_addr <= file_addr)
88 return (file_addr - file_base_addr) < GetByteSize();
93 bool AddressRange::ContainsLoadAddress(const Address &addr,
94 Target *target) const {
95 if (addr.GetSection() == m_base_addr.GetSection())
96 return (addr.GetOffset() - m_base_addr.GetOffset()) < GetByteSize();
97 addr_t load_base_addr = GetBaseAddress().GetLoadAddress(target);
98 if (load_base_addr == LLDB_INVALID_ADDRESS)
101 addr_t load_addr = addr.GetLoadAddress(target);
102 if (load_addr == LLDB_INVALID_ADDRESS)
105 if (load_base_addr <= load_addr)
106 return (load_addr - load_base_addr) < GetByteSize();
111 bool AddressRange::ContainsLoadAddress(addr_t load_addr, Target *target) const {
112 if (load_addr == LLDB_INVALID_ADDRESS)
115 addr_t load_base_addr = GetBaseAddress().GetLoadAddress(target);
116 if (load_base_addr == LLDB_INVALID_ADDRESS)
119 if (load_base_addr <= load_addr)
120 return (load_addr - load_base_addr) < GetByteSize();
125 bool AddressRange::Extend(const AddressRange &rhs_range) {
126 addr_t lhs_end_addr = GetBaseAddress().GetFileAddress() + GetByteSize();
127 addr_t rhs_base_addr = rhs_range.GetBaseAddress().GetFileAddress();
129 if (!ContainsFileAddress(rhs_range.GetBaseAddress()) &&
130 lhs_end_addr != rhs_base_addr)
131 // The ranges don't intersect at all on the right side of this range.
134 addr_t rhs_end_addr = rhs_base_addr + rhs_range.GetByteSize();
135 if (lhs_end_addr >= rhs_end_addr)
136 // The rhs range totally overlaps this one, nothing to add.
139 m_byte_size += rhs_end_addr - lhs_end_addr;
143 void AddressRange::Clear() {
148 bool AddressRange::Dump(Stream *s, Target *target, Address::DumpStyle style,
149 Address::DumpStyle fallback_style) const {
150 addr_t vmaddr = LLDB_INVALID_ADDRESS;
151 int addr_size = sizeof(addr_t);
153 addr_size = target->GetArchitecture().GetAddressByteSize();
155 bool show_module = false;
159 case Address::DumpStyleSectionNameOffset:
160 case Address::DumpStyleSectionPointerOffset:
162 m_base_addr.Dump(s, target, style, fallback_style);
164 s->Address(m_base_addr.GetOffset() + GetByteSize(), addr_size);
169 case Address::DumpStyleModuleWithFileAddress:
172 case Address::DumpStyleFileAddress:
173 vmaddr = m_base_addr.GetFileAddress();
176 case Address::DumpStyleLoadAddress:
177 vmaddr = m_base_addr.GetLoadAddress(target);
181 if (vmaddr != LLDB_INVALID_ADDRESS) {
183 ModuleSP module_sp(GetBaseAddress().GetModule());
185 s->Printf("%s", module_sp->GetFileSpec().GetFilename().AsCString(
188 s->AddressRange(vmaddr, vmaddr + GetByteSize(), addr_size);
190 } else if (fallback_style != Address::DumpStyleInvalid) {
191 return Dump(s, target, fallback_style, Address::DumpStyleInvalid);
197 void AddressRange::DumpDebug(Stream *s) const {
198 s->Printf("%p: AddressRange section = %p, offset = 0x%16.16" PRIx64
199 ", byte_size = 0x%16.16" PRIx64 "\n",
200 static_cast<const void *>(this),
201 static_cast<void *>(m_base_addr.GetSection().get()),
202 m_base_addr.GetOffset(), GetByteSize());
206 // lldb::operator== (const AddressRange& lhs, const AddressRange& rhs)
208 // if (lhs.GetBaseAddress() == rhs.GetBaseAddress())
209 // return lhs.GetByteSize() == rhs.GetByteSize();