/Users/buildslave/jenkins/workspace/coverage/llvm-project/lldb/source/Core/Section.cpp
Line | Count | Source (jump to first uncovered line) |
1 | | //===-- Section.cpp -------------------------------------------------------===// |
2 | | // |
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 |
6 | | // |
7 | | //===----------------------------------------------------------------------===// |
8 | | |
9 | | #include "lldb/Core/Section.h" |
10 | | #include "lldb/Core/Address.h" |
11 | | #include "lldb/Core/Module.h" |
12 | | #include "lldb/Symbol/ObjectFile.h" |
13 | | #include "lldb/Target/SectionLoadList.h" |
14 | | #include "lldb/Target/Target.h" |
15 | | #include "lldb/Utility/FileSpec.h" |
16 | | #include "lldb/Utility/VMRange.h" |
17 | | |
18 | | #include <cinttypes> |
19 | | #include <limits> |
20 | | #include <utility> |
21 | | |
22 | | namespace lldb_private { |
23 | | class DataExtractor; |
24 | | } |
25 | | using namespace lldb; |
26 | | using namespace lldb_private; |
27 | | |
28 | 67.5k | const char *Section::GetTypeAsCString() const { |
29 | 67.5k | switch (m_type) { |
30 | 0 | case eSectionTypeInvalid: |
31 | 0 | return "invalid"; |
32 | 312 | case eSectionTypeCode: |
33 | 312 | return "code"; |
34 | 332 | case eSectionTypeContainer: |
35 | 332 | return "container"; |
36 | 93 | case eSectionTypeData: |
37 | 93 | return "data"; |
38 | 128 | case eSectionTypeDataCString: |
39 | 128 | return "data-cstr"; |
40 | 8 | case eSectionTypeDataCStringPointers: |
41 | 8 | return "data-cstr-ptr"; |
42 | 0 | case eSectionTypeDataSymbolAddress: |
43 | 0 | return "data-symbol-addr"; |
44 | 0 | case eSectionTypeData4: |
45 | 0 | return "data-4-byte"; |
46 | 0 | case eSectionTypeData8: |
47 | 0 | return "data-8-byte"; |
48 | 0 | case eSectionTypeData16: |
49 | 0 | return "data-16-byte"; |
50 | 280 | case eSectionTypeDataPointers: |
51 | 280 | return "data-ptrs"; |
52 | 12 | case eSectionTypeDebug: |
53 | 12 | return "debug"; |
54 | 108 | case eSectionTypeZeroFill: |
55 | 108 | return "zero-fill"; |
56 | 0 | case eSectionTypeDataObjCMessageRefs: |
57 | 0 | return "objc-message-refs"; |
58 | 0 | case eSectionTypeDataObjCCFStrings: |
59 | 0 | return "objc-cfstrings"; |
60 | 20 | case eSectionTypeDWARFDebugAbbrev: |
61 | 20 | return "dwarf-abbrev"; |
62 | 1 | case eSectionTypeDWARFDebugAbbrevDwo: |
63 | 1 | return "dwarf-abbrev-dwo"; |
64 | 3 | case eSectionTypeDWARFDebugAddr: |
65 | 3 | return "dwarf-addr"; |
66 | 7 | case eSectionTypeDWARFDebugAranges: |
67 | 7 | return "dwarf-aranges"; |
68 | 1 | case eSectionTypeDWARFDebugCuIndex: |
69 | 1 | return "dwarf-cu-index"; |
70 | 1 | case eSectionTypeDWARFDebugTuIndex: |
71 | 1 | return "dwarf-tu-index"; |
72 | 3 | case eSectionTypeDWARFDebugFrame: |
73 | 3 | return "dwarf-frame"; |
74 | 30 | case eSectionTypeDWARFDebugInfo: |
75 | 30 | return "dwarf-info"; |
76 | 1 | case eSectionTypeDWARFDebugInfoDwo: |
77 | 1 | return "dwarf-info-dwo"; |
78 | 18 | case eSectionTypeDWARFDebugLine: |
79 | 18 | return "dwarf-line"; |
80 | 2 | case eSectionTypeDWARFDebugLineStr: |
81 | 2 | return "dwarf-line-str"; |
82 | 2 | case eSectionTypeDWARFDebugLoc: |
83 | 2 | return "dwarf-loc"; |
84 | 2 | case eSectionTypeDWARFDebugLocDwo: |
85 | 2 | return "dwarf-loc-dwo"; |
86 | 2 | case eSectionTypeDWARFDebugLocLists: |
87 | 2 | return "dwarf-loclists"; |
88 | 2 | case eSectionTypeDWARFDebugLocListsDwo: |
89 | 2 | return "dwarf-loclists-dwo"; |
90 | 1 | case eSectionTypeDWARFDebugMacInfo: |
91 | 1 | return "dwarf-macinfo"; |
92 | 2 | case eSectionTypeDWARFDebugMacro: |
93 | 2 | return "dwarf-macro"; |
94 | 1 | case eSectionTypeDWARFDebugPubNames: |
95 | 1 | return "dwarf-pubnames"; |
96 | 1 | case eSectionTypeDWARFDebugPubTypes: |
97 | 1 | return "dwarf-pubtypes"; |
98 | 4 | case eSectionTypeDWARFDebugRanges: |
99 | 4 | return "dwarf-ranges"; |
100 | 2 | case eSectionTypeDWARFDebugRngLists: |
101 | 2 | return "dwarf-rnglists"; |
102 | 2 | case eSectionTypeDWARFDebugRngListsDwo: |
103 | 2 | return "dwarf-rnglists-dwo"; |
104 | 18 | case eSectionTypeDWARFDebugStr: |
105 | 18 | return "dwarf-str"; |
106 | 1 | case eSectionTypeDWARFDebugStrDwo: |
107 | 1 | return "dwarf-str-dwo"; |
108 | 1 | case eSectionTypeDWARFDebugStrOffsets: |
109 | 1 | return "dwarf-str-offsets"; |
110 | 1 | case eSectionTypeDWARFDebugStrOffsetsDwo: |
111 | 1 | return "dwarf-str-offsets-dwo"; |
112 | 3 | case eSectionTypeDWARFDebugTypes: |
113 | 3 | return "dwarf-types"; |
114 | 2 | case eSectionTypeDWARFDebugTypesDwo: |
115 | 2 | return "dwarf-types-dwo"; |
116 | 2 | case eSectionTypeDWARFDebugNames: |
117 | 2 | return "dwarf-names"; |
118 | 16 | case eSectionTypeELFSymbolTable: |
119 | 16 | return "elf-symbol-table"; |
120 | 1 | case eSectionTypeELFDynamicSymbols: |
121 | 1 | return "elf-dynamic-symbols"; |
122 | 18 | case eSectionTypeELFRelocationEntries: |
123 | 18 | return "elf-relocation-entries"; |
124 | 1 | case eSectionTypeELFDynamicLinkInfo: |
125 | 1 | return "elf-dynamic-link-info"; |
126 | 8 | case eSectionTypeDWARFAppleNames: |
127 | 8 | return "apple-names"; |
128 | 8 | case eSectionTypeDWARFAppleTypes: |
129 | 8 | return "apple-types"; |
130 | 8 | case eSectionTypeDWARFAppleNamespaces: |
131 | 8 | return "apple-namespaces"; |
132 | 8 | case eSectionTypeDWARFAppleObjC: |
133 | 8 | return "apple-objc"; |
134 | 49 | case eSectionTypeEHFrame: |
135 | 49 | return "eh-frame"; |
136 | 0 | case eSectionTypeARMexidx: |
137 | 0 | return "ARM.exidx"; |
138 | 0 | case eSectionTypeARMextab: |
139 | 0 | return "ARM.extab"; |
140 | 92 | case eSectionTypeCompactUnwind: |
141 | 92 | return "compact-unwind"; |
142 | 0 | case eSectionTypeGoSymtab: |
143 | 0 | return "go-symtab"; |
144 | 0 | case eSectionTypeAbsoluteAddress: |
145 | 0 | return "absolute"; |
146 | 1 | case eSectionTypeDWARFGNUDebugAltLink: |
147 | 1 | return "dwarf-gnu-debugaltlink"; |
148 | 0 | case eSectionTypeCTF: |
149 | 0 | return "ctf"; |
150 | 65.9k | case eSectionTypeOther: |
151 | 65.9k | return "regular"; |
152 | 0 | case eSectionTypeSwiftModules: |
153 | 0 | return "swift-modules"; |
154 | 67.5k | } |
155 | 0 | return "unknown"; |
156 | 67.5k | } |
157 | | |
158 | | Section::Section(const ModuleSP &module_sp, ObjectFile *obj_file, |
159 | | user_id_t sect_id, ConstString name, |
160 | | SectionType sect_type, addr_t file_addr, addr_t byte_size, |
161 | | lldb::offset_t file_offset, lldb::offset_t file_size, |
162 | | uint32_t log2align, uint32_t flags, |
163 | | uint32_t target_byte_size /*=1*/) |
164 | 404k | : ModuleChild(module_sp), UserID(sect_id), Flags(flags), |
165 | 404k | m_obj_file(obj_file), m_type(sect_type), m_parent_wp(), m_name(name), |
166 | 404k | m_file_addr(file_addr), m_byte_size(byte_size), |
167 | 404k | m_file_offset(file_offset), m_file_size(file_size), |
168 | 404k | m_log2align(log2align), m_children(), m_fake(false), m_encrypted(false), |
169 | 404k | m_thread_specific(false), m_readable(false), m_writable(false), |
170 | 404k | m_executable(false), m_relocated(false), m_target_byte_size(target_byte_size) { |
171 | 404k | } |
172 | | |
173 | | Section::Section(const lldb::SectionSP &parent_section_sp, |
174 | | const ModuleSP &module_sp, ObjectFile *obj_file, |
175 | | user_id_t sect_id, ConstString name, |
176 | | SectionType sect_type, addr_t file_addr, addr_t byte_size, |
177 | | lldb::offset_t file_offset, lldb::offset_t file_size, |
178 | | uint32_t log2align, uint32_t flags, |
179 | | uint32_t target_byte_size /*=1*/) |
180 | 1.72M | : ModuleChild(module_sp), UserID(sect_id), Flags(flags), |
181 | 1.72M | m_obj_file(obj_file), m_type(sect_type), m_parent_wp(), m_name(name), |
182 | 1.72M | m_file_addr(file_addr), m_byte_size(byte_size), |
183 | 1.72M | m_file_offset(file_offset), m_file_size(file_size), |
184 | 1.72M | m_log2align(log2align), m_children(), m_fake(false), m_encrypted(false), |
185 | 1.72M | m_thread_specific(false), m_readable(false), m_writable(false), |
186 | 1.72M | m_executable(false), m_relocated(false), m_target_byte_size(target_byte_size) { |
187 | 1.72M | if (parent_section_sp) |
188 | 1.64M | m_parent_wp = parent_section_sp; |
189 | 1.72M | } |
190 | | |
191 | 2.04M | Section::~Section() = default; |
192 | | |
193 | 1.16G | addr_t Section::GetFileAddress() const { |
194 | 1.16G | SectionSP parent_sp(GetParent()); |
195 | 1.16G | if (parent_sp) { |
196 | | // This section has a parent which means m_file_addr is an offset into the |
197 | | // parent section, so the file address for this section is the file address |
198 | | // of the parent plus the offset |
199 | 572M | return parent_sp->GetFileAddress() + m_file_addr; |
200 | 572M | } |
201 | | // This section has no parent, so m_file_addr is the file base address |
202 | 596M | return m_file_addr; |
203 | 1.16G | } |
204 | | |
205 | 0 | bool Section::SetFileAddress(lldb::addr_t file_addr) { |
206 | 0 | SectionSP parent_sp(GetParent()); |
207 | 0 | if (parent_sp) { |
208 | 0 | if (m_file_addr >= file_addr) |
209 | 0 | return parent_sp->SetFileAddress(m_file_addr - file_addr); |
210 | 0 | return false; |
211 | 0 | } else { |
212 | | // This section has no parent, so m_file_addr is the file base address |
213 | 0 | m_file_addr = file_addr; |
214 | 0 | return true; |
215 | 0 | } |
216 | 0 | } |
217 | | |
218 | 6.68M | lldb::addr_t Section::GetOffset() const { |
219 | | // This section has a parent which means m_file_addr is an offset. |
220 | 6.68M | SectionSP parent_sp(GetParent()); |
221 | 6.68M | if (parent_sp) |
222 | 6.68M | return m_file_addr; |
223 | | |
224 | | // This section has no parent, so there is no offset to be had |
225 | 0 | return 0; |
226 | 6.68M | } |
227 | | |
228 | 10.3M | addr_t Section::GetLoadBaseAddress(Target *target) const { |
229 | 10.3M | addr_t load_base_addr = LLDB_INVALID_ADDRESS; |
230 | 10.3M | SectionSP parent_sp(GetParent()); |
231 | 10.3M | if (parent_sp) { |
232 | 5.15M | load_base_addr = parent_sp->GetLoadBaseAddress(target); |
233 | 5.15M | if (load_base_addr != LLDB_INVALID_ADDRESS) |
234 | 5.15M | load_base_addr += GetOffset(); |
235 | 5.15M | } |
236 | 10.3M | if (load_base_addr == LLDB_INVALID_ADDRESS) { |
237 | 5.16M | load_base_addr = target->GetSectionLoadList().GetSectionLoadAddress( |
238 | 5.16M | const_cast<Section *>(this)->shared_from_this()); |
239 | 5.16M | } |
240 | 10.3M | return load_base_addr; |
241 | 10.3M | } |
242 | | |
243 | | bool Section::ResolveContainedAddress(addr_t offset, Address &so_addr, |
244 | 1.96M | bool allow_section_end) const { |
245 | 1.96M | const size_t num_children = m_children.GetSize(); |
246 | 2.53M | for (size_t i = 0; i < num_children; i++570k ) { |
247 | 1.53M | Section *child_section = m_children.GetSectionAtIndex(i).get(); |
248 | | |
249 | 1.53M | addr_t child_offset = child_section->GetOffset(); |
250 | 1.53M | if (child_offset <= offset && |
251 | 1.53M | offset - child_offset < |
252 | 1.51M | child_section->GetByteSize() + (allow_section_end ? 1410k : 01.10M )) |
253 | 962k | return child_section->ResolveContainedAddress(offset - child_offset, |
254 | 962k | so_addr, allow_section_end); |
255 | 1.53M | } |
256 | 1.00M | so_addr.SetOffset(offset); |
257 | 1.00M | so_addr.SetSection(const_cast<Section *>(this)->shared_from_this()); |
258 | | |
259 | | // Ensure that there are no orphaned (i.e., moduleless) sections. |
260 | 1.00M | assert(GetModule().get()); |
261 | 1.00M | return true; |
262 | 1.00M | } |
263 | | |
264 | 78.6M | bool Section::ContainsFileAddress(addr_t vm_addr) const { |
265 | 78.6M | const addr_t file_addr = GetFileAddress(); |
266 | 78.6M | if (file_addr != LLDB_INVALID_ADDRESS && !IsThreadSpecific()) { |
267 | 78.6M | if (file_addr <= vm_addr) { |
268 | 78.6M | const addr_t offset = (vm_addr - file_addr) * m_target_byte_size; |
269 | 78.6M | return offset < GetByteSize(); |
270 | 78.6M | } |
271 | 78.6M | } |
272 | 20.9k | return false; |
273 | 78.6M | } |
274 | | |
275 | | void Section::Dump(llvm::raw_ostream &s, unsigned indent, Target *target, |
276 | 1.70k | uint32_t depth) const { |
277 | 1.70k | s.indent(indent); |
278 | 1.70k | s << llvm::format("0x%8.8" PRIx64 " %-16s ", GetID(), GetTypeAsCString()); |
279 | 1.70k | bool resolved = true; |
280 | 1.70k | addr_t addr = LLDB_INVALID_ADDRESS; |
281 | | |
282 | 1.70k | if (GetByteSize() == 0) |
283 | 68 | s.indent(39); |
284 | 1.63k | else { |
285 | 1.63k | if (target) |
286 | 138 | addr = GetLoadBaseAddress(target); |
287 | | |
288 | 1.63k | if (addr == LLDB_INVALID_ADDRESS) { |
289 | 1.56k | if (target) |
290 | 60 | resolved = false; |
291 | 1.56k | addr = GetFileAddress(); |
292 | 1.56k | } |
293 | | |
294 | 1.63k | VMRange range(addr, addr + m_byte_size); |
295 | 1.63k | range.Dump(s, 0); |
296 | 1.63k | } |
297 | | |
298 | 1.70k | s << llvm::format("%c %c%c%c 0x%8.8" PRIx64 " 0x%8.8" PRIx64 " 0x%8.8x ", |
299 | 1.70k | resolved ? ' '1.64k : '*'60 , m_readable ? 'r'1.63k : '-'68 , |
300 | 1.70k | m_writable ? 'w'789 : '-'918 , m_executable ? 'x'768 : '-'939 , |
301 | 1.70k | m_file_offset, m_file_size, Get()); |
302 | | |
303 | 1.70k | DumpName(s); |
304 | | |
305 | 1.70k | s << "\n"; |
306 | | |
307 | 1.70k | if (depth > 0) |
308 | 1.70k | m_children.Dump(s, indent, target, false, depth - 1); |
309 | 1.70k | } |
310 | | |
311 | 57.9k | void Section::DumpName(llvm::raw_ostream &s) const { |
312 | 57.9k | SectionSP parent_sp(GetParent()); |
313 | 57.9k | if (parent_sp) { |
314 | 28.7k | parent_sp->DumpName(s); |
315 | 28.7k | s << '.'; |
316 | 29.1k | } else { |
317 | | // The top most section prints the module basename |
318 | 29.1k | const char *name = nullptr; |
319 | 29.1k | ModuleSP module_sp(GetModule()); |
320 | | |
321 | 29.1k | if (m_obj_file) { |
322 | 29.1k | const FileSpec &file_spec = m_obj_file->GetFileSpec(); |
323 | 29.1k | name = file_spec.GetFilename().AsCString(); |
324 | 29.1k | } |
325 | 29.1k | if ((!name || !name[0]) && module_sp0 ) |
326 | 0 | name = module_sp->GetFileSpec().GetFilename().AsCString(); |
327 | 29.1k | if (name && name[0]) |
328 | 29.1k | s << name << '.'; |
329 | 29.1k | } |
330 | 57.9k | s << m_name; |
331 | 57.9k | } |
332 | | |
333 | 136M | bool Section::IsDescendant(const Section *section) { |
334 | 136M | if (this == section) |
335 | 31.1M | return true; |
336 | 105M | SectionSP parent_sp(GetParent()); |
337 | 105M | if (parent_sp) |
338 | 68.4M | return parent_sp->IsDescendant(section); |
339 | 37.3M | return false; |
340 | 105M | } |
341 | | |
342 | 96 | bool Section::Slide(addr_t slide_amount, bool slide_children) { |
343 | 96 | if (m_file_addr != LLDB_INVALID_ADDRESS) { |
344 | 96 | if (slide_amount == 0) |
345 | 0 | return true; |
346 | | |
347 | 96 | m_file_addr += slide_amount; |
348 | | |
349 | 96 | if (slide_children) |
350 | 0 | m_children.Slide(slide_amount, slide_children); |
351 | | |
352 | 96 | return true; |
353 | 96 | } |
354 | 0 | return false; |
355 | 96 | } |
356 | | |
357 | | /// Get the permissions as OR'ed bits from lldb::Permissions |
358 | 83.9k | uint32_t Section::GetPermissions() const { |
359 | 83.9k | uint32_t permissions = 0; |
360 | 83.9k | if (m_readable) |
361 | 18.2k | permissions |= ePermissionsReadable; |
362 | 83.9k | if (m_writable) |
363 | 167 | permissions |= ePermissionsWritable; |
364 | 83.9k | if (m_executable) |
365 | 18.0k | permissions |= ePermissionsExecutable; |
366 | 83.9k | return permissions; |
367 | 83.9k | } |
368 | | |
369 | | /// Set the permissions using bits OR'ed from lldb::Permissions |
370 | 2.06M | void Section::SetPermissions(uint32_t permissions) { |
371 | 2.06M | m_readable = (permissions & ePermissionsReadable) != 0; |
372 | 2.06M | m_writable = (permissions & ePermissionsWritable) != 0; |
373 | 2.06M | m_executable = (permissions & ePermissionsExecutable) != 0; |
374 | 2.06M | } |
375 | | |
376 | | lldb::offset_t Section::GetSectionData(void *dst, lldb::offset_t dst_len, |
377 | 0 | lldb::offset_t offset) { |
378 | 0 | if (m_obj_file) |
379 | 0 | return m_obj_file->ReadSectionData(this, offset, dst, dst_len); |
380 | 0 | return 0; |
381 | 0 | } |
382 | | |
383 | 28.2k | lldb::offset_t Section::GetSectionData(DataExtractor §ion_data) { |
384 | 28.2k | if (m_obj_file) |
385 | 28.2k | return m_obj_file->ReadSectionData(this, section_data); |
386 | 0 | return 0; |
387 | 28.2k | } |
388 | | |
389 | 14.3k | bool Section::ContainsOnlyDebugInfo() const { |
390 | 14.3k | switch (m_type) { |
391 | 48 | case eSectionTypeInvalid: |
392 | 2.70k | case eSectionTypeCode: |
393 | 3.70k | case eSectionTypeContainer: |
394 | 4.33k | case eSectionTypeData: |
395 | 5.66k | case eSectionTypeDataCString: |
396 | 5.74k | case eSectionTypeDataCStringPointers: |
397 | 5.74k | case eSectionTypeDataSymbolAddress: |
398 | 5.74k | case eSectionTypeData4: |
399 | 5.74k | case eSectionTypeData8: |
400 | 5.74k | case eSectionTypeData16: |
401 | 8.70k | case eSectionTypeDataPointers: |
402 | 9.78k | case eSectionTypeZeroFill: |
403 | 9.78k | case eSectionTypeDataObjCMessageRefs: |
404 | 9.78k | case eSectionTypeDataObjCCFStrings: |
405 | 9.78k | case eSectionTypeELFSymbolTable: |
406 | 9.78k | case eSectionTypeELFDynamicSymbols: |
407 | 9.78k | case eSectionTypeELFRelocationEntries: |
408 | 9.78k | case eSectionTypeELFDynamicLinkInfo: |
409 | 10.2k | case eSectionTypeEHFrame: |
410 | 10.2k | case eSectionTypeARMexidx: |
411 | 10.2k | case eSectionTypeARMextab: |
412 | 11.1k | case eSectionTypeCompactUnwind: |
413 | 11.1k | case eSectionTypeGoSymtab: |
414 | 11.1k | case eSectionTypeAbsoluteAddress: |
415 | 13.8k | case eSectionTypeOther: |
416 | | // Used for "__dof_cache" in mach-o or ".debug" for COFF which isn't debug |
417 | | // information that we parse at all. This was causing system files with no |
418 | | // debug info to show debug info byte sizes in the "statistics dump" output |
419 | | // for each module. New "eSectionType" enums should be created for dedicated |
420 | | // debug info that has a predefined format if we wish for these sections to |
421 | | // show up as debug info. |
422 | 14.0k | case eSectionTypeDebug: |
423 | 14.0k | return false; |
424 | | |
425 | 42 | case eSectionTypeDWARFDebugAbbrev: |
426 | 42 | case eSectionTypeDWARFDebugAbbrevDwo: |
427 | 42 | case eSectionTypeDWARFDebugAddr: |
428 | 63 | case eSectionTypeDWARFDebugAranges: |
429 | 63 | case eSectionTypeDWARFDebugCuIndex: |
430 | 63 | case eSectionTypeDWARFDebugTuIndex: |
431 | 75 | case eSectionTypeDWARFDebugFrame: |
432 | 115 | case eSectionTypeDWARFDebugInfo: |
433 | 115 | case eSectionTypeDWARFDebugInfoDwo: |
434 | 155 | case eSectionTypeDWARFDebugLine: |
435 | 155 | case eSectionTypeDWARFDebugLineStr: |
436 | 155 | case eSectionTypeDWARFDebugLoc: |
437 | 155 | case eSectionTypeDWARFDebugLocDwo: |
438 | 155 | case eSectionTypeDWARFDebugLocLists: |
439 | 155 | case eSectionTypeDWARFDebugLocListsDwo: |
440 | 155 | case eSectionTypeDWARFDebugMacInfo: |
441 | 155 | case eSectionTypeDWARFDebugMacro: |
442 | 155 | case eSectionTypeDWARFDebugPubNames: |
443 | 155 | case eSectionTypeDWARFDebugPubTypes: |
444 | 161 | case eSectionTypeDWARFDebugRanges: |
445 | 161 | case eSectionTypeDWARFDebugRngLists: |
446 | 161 | case eSectionTypeDWARFDebugRngListsDwo: |
447 | 203 | case eSectionTypeDWARFDebugStr: |
448 | 203 | case eSectionTypeDWARFDebugStrDwo: |
449 | 203 | case eSectionTypeDWARFDebugStrOffsets: |
450 | 203 | case eSectionTypeDWARFDebugStrOffsetsDwo: |
451 | 203 | case eSectionTypeDWARFDebugTypes: |
452 | 203 | case eSectionTypeDWARFDebugTypesDwo: |
453 | 203 | case eSectionTypeDWARFDebugNames: |
454 | 231 | case eSectionTypeDWARFAppleNames: |
455 | 259 | case eSectionTypeDWARFAppleTypes: |
456 | 287 | case eSectionTypeDWARFAppleNamespaces: |
457 | 315 | case eSectionTypeDWARFAppleObjC: |
458 | 315 | case eSectionTypeDWARFGNUDebugAltLink: |
459 | 315 | case eSectionTypeCTF: |
460 | 315 | case eSectionTypeSwiftModules: |
461 | 315 | return true; |
462 | 14.3k | } |
463 | 0 | return false; |
464 | 14.3k | } |
465 | | |
466 | | |
467 | | #pragma mark SectionList |
468 | | |
469 | 5.03k | SectionList &SectionList::operator=(const SectionList &rhs) { |
470 | 5.03k | if (this != &rhs) |
471 | 5.03k | m_sections = rhs.m_sections; |
472 | 5.03k | return *this; |
473 | 5.03k | } |
474 | | |
475 | 2.48M | size_t SectionList::AddSection(const lldb::SectionSP §ion_sp) { |
476 | 2.48M | if (section_sp) { |
477 | 2.48M | size_t section_index = m_sections.size(); |
478 | 2.48M | m_sections.push_back(section_sp); |
479 | 2.48M | return section_index; |
480 | 2.48M | } |
481 | | |
482 | 0 | return std::numeric_limits<size_t>::max(); |
483 | 2.48M | } |
484 | | |
485 | | // Warning, this can be slow as it's removing items from a std::vector. |
486 | 0 | bool SectionList::DeleteSection(size_t idx) { |
487 | 0 | if (idx < m_sections.size()) { |
488 | 0 | m_sections.erase(m_sections.begin() + idx); |
489 | 0 | return true; |
490 | 0 | } |
491 | 0 | return false; |
492 | 0 | } |
493 | | |
494 | 0 | size_t SectionList::FindSectionIndex(const Section *sect) { |
495 | 0 | iterator sect_iter; |
496 | 0 | iterator begin = m_sections.begin(); |
497 | 0 | iterator end = m_sections.end(); |
498 | 0 | for (sect_iter = begin; sect_iter != end; ++sect_iter) { |
499 | 0 | if (sect_iter->get() == sect) { |
500 | | // The secton was already in this section list |
501 | 0 | return std::distance(begin, sect_iter); |
502 | 0 | } |
503 | 0 | } |
504 | 0 | return UINT32_MAX; |
505 | 0 | } |
506 | | |
507 | 0 | size_t SectionList::AddUniqueSection(const lldb::SectionSP §_sp) { |
508 | 0 | size_t sect_idx = FindSectionIndex(sect_sp.get()); |
509 | 0 | if (sect_idx == UINT32_MAX) { |
510 | 0 | sect_idx = AddSection(sect_sp); |
511 | 0 | } |
512 | 0 | return sect_idx; |
513 | 0 | } |
514 | | |
515 | | bool SectionList::ReplaceSection(user_id_t sect_id, |
516 | | const lldb::SectionSP §_sp, |
517 | 54 | uint32_t depth) { |
518 | 54 | iterator sect_iter, end = m_sections.end(); |
519 | 96 | for (sect_iter = m_sections.begin(); sect_iter != end; ++sect_iter42 ) { |
520 | 54 | if ((*sect_iter)->GetID() == sect_id) { |
521 | 12 | *sect_iter = sect_sp; |
522 | 12 | return true; |
523 | 42 | } else if (depth > 0) { |
524 | 42 | if ((*sect_iter) |
525 | 42 | ->GetChildren() |
526 | 42 | .ReplaceSection(sect_id, sect_sp, depth - 1)) |
527 | 0 | return true; |
528 | 42 | } |
529 | 54 | } |
530 | 42 | return false; |
531 | 54 | } |
532 | | |
533 | 2.96M | size_t SectionList::GetNumSections(uint32_t depth) const { |
534 | 2.96M | size_t count = m_sections.size(); |
535 | 2.96M | if (depth > 0) { |
536 | 111k | const_iterator sect_iter, end = m_sections.end(); |
537 | 459k | for (sect_iter = m_sections.begin(); sect_iter != end; ++sect_iter347k ) { |
538 | 347k | count += (*sect_iter)->GetChildren().GetNumSections(depth - 1); |
539 | 347k | } |
540 | 111k | } |
541 | 2.96M | return count; |
542 | 2.96M | } |
543 | | |
544 | 4.40M | SectionSP SectionList::GetSectionAtIndex(size_t idx) const { |
545 | 4.40M | SectionSP sect_sp; |
546 | 4.40M | if (idx < m_sections.size()) |
547 | 4.40M | sect_sp = m_sections[idx]; |
548 | 4.40M | return sect_sp; |
549 | 4.40M | } |
550 | | |
551 | | SectionSP |
552 | 22.1M | SectionList::FindSectionByName(ConstString section_dstr) const { |
553 | 22.1M | SectionSP sect_sp; |
554 | | // Check if we have a valid section string |
555 | 22.1M | if (section_dstr && !m_sections.empty()22.1M ) { |
556 | 4.05M | const_iterator sect_iter; |
557 | 4.05M | const_iterator end = m_sections.end(); |
558 | 4.05M | for (sect_iter = m_sections.begin(); |
559 | 25.2M | sect_iter != end && sect_sp.get() == nullptr21.8M ; ++sect_iter21.1M ) { |
560 | 21.1M | Section *child_section = sect_iter->get(); |
561 | 21.1M | if (child_section) { |
562 | 21.1M | if (child_section->GetName() == section_dstr) { |
563 | 929k | sect_sp = *sect_iter; |
564 | 20.2M | } else { |
565 | 20.2M | sect_sp = |
566 | 20.2M | child_section->GetChildren().FindSectionByName(section_dstr); |
567 | 20.2M | } |
568 | 21.1M | } |
569 | 21.1M | } |
570 | 4.05M | } |
571 | 22.1M | return sect_sp; |
572 | 22.1M | } |
573 | | |
574 | 8.72M | SectionSP SectionList::FindSectionByID(user_id_t sect_id) const { |
575 | 8.72M | SectionSP sect_sp; |
576 | 8.72M | if (sect_id) { |
577 | 8.72M | const_iterator sect_iter; |
578 | 8.72M | const_iterator end = m_sections.end(); |
579 | 8.72M | for (sect_iter = m_sections.begin(); |
580 | 16.7M | sect_iter != end && sect_sp.get() == nullptr9.37M ; ++sect_iter8.03M ) { |
581 | 8.72M | if ((*sect_iter)->GetID() == sect_id) { |
582 | 681k | sect_sp = *sect_iter; |
583 | 681k | break; |
584 | 8.03M | } else { |
585 | 8.03M | sect_sp = (*sect_iter)->GetChildren().FindSectionByID(sect_id); |
586 | 8.03M | } |
587 | 8.72M | } |
588 | 8.72M | } |
589 | 8.72M | return sect_sp; |
590 | 8.72M | } |
591 | | |
592 | | SectionSP SectionList::FindSectionByType(SectionType sect_type, |
593 | | bool check_children, |
594 | 6.40M | size_t start_idx) const { |
595 | 6.40M | SectionSP sect_sp; |
596 | 6.40M | size_t num_sections = m_sections.size(); |
597 | 12.4M | for (size_t idx = start_idx; idx < num_sections; ++idx5.99M ) { |
598 | 6.12M | if (m_sections[idx]->GetType() == sect_type) { |
599 | 81.7k | sect_sp = m_sections[idx]; |
600 | 81.7k | break; |
601 | 6.04M | } else if (check_children) { |
602 | 6.04M | sect_sp = m_sections[idx]->GetChildren().FindSectionByType( |
603 | 6.04M | sect_type, check_children, 0); |
604 | 6.04M | if (sect_sp) |
605 | 41.9k | break; |
606 | 6.04M | } |
607 | 6.12M | } |
608 | 6.40M | return sect_sp; |
609 | 6.40M | } |
610 | | |
611 | | SectionSP SectionList::FindSectionContainingFileAddress(addr_t vm_addr, |
612 | 65.4M | uint32_t depth) const { |
613 | 65.4M | SectionSP sect_sp; |
614 | 65.4M | const_iterator sect_iter; |
615 | 65.4M | const_iterator end = m_sections.end(); |
616 | 65.4M | for (sect_iter = m_sections.begin(); |
617 | 122M | sect_iter != end && sect_sp.get() == nullptr100M ; ++sect_iter56.8M ) { |
618 | 56.8M | Section *sect = sect_iter->get(); |
619 | 56.8M | if (sect->ContainsFileAddress(vm_addr)) { |
620 | | // The file address is in this section. We need to make sure one of our |
621 | | // child sections doesn't contain this address as well as obeying the |
622 | | // depth limit that was passed in. |
623 | 43.6M | if (depth > 0) |
624 | 43.6M | sect_sp = sect->GetChildren().FindSectionContainingFileAddress( |
625 | 43.6M | vm_addr, depth - 1); |
626 | | |
627 | 43.6M | if (sect_sp.get() == nullptr && !sect->IsFake()21.8M ) |
628 | 21.8M | sect_sp = *sect_iter; |
629 | 43.6M | } |
630 | 56.8M | } |
631 | 65.4M | return sect_sp; |
632 | 65.4M | } |
633 | | |
634 | 0 | bool SectionList::ContainsSection(user_id_t sect_id) const { |
635 | 0 | return FindSectionByID(sect_id).get() != nullptr; |
636 | 0 | } |
637 | | |
638 | | void SectionList::Dump(llvm::raw_ostream &s, unsigned indent, Target *target, |
639 | 1.81k | bool show_header, uint32_t depth) const { |
640 | 1.81k | bool target_has_loaded_sections = |
641 | 1.81k | target && !target->GetSectionLoadList().IsEmpty()145 ; |
642 | 1.81k | if (show_header && !m_sections.empty()106 ) { |
643 | 106 | s.indent(indent); |
644 | 106 | s << llvm::formatv( |
645 | 106 | "SectID Type {0} Address " |
646 | 106 | " Perm File Off. File Size Flags " |
647 | 106 | " Section Name\n", |
648 | 106 | target_has_loaded_sections ? "Load"6 : "File"100 ); |
649 | 106 | s.indent(indent); |
650 | 106 | s << "---------- ---------------- " |
651 | 106 | "--------------------------------------- ---- ---------- " |
652 | 106 | "---------- " |
653 | 106 | "---------- ----------------------------\n"; |
654 | 106 | } |
655 | | |
656 | 1.81k | for (const auto §ion_sp : m_sections) |
657 | 1.70k | section_sp->Dump(s, indent, target_has_loaded_sections ? target138 : nullptr1.56k , |
658 | 1.70k | depth); |
659 | 1.81k | } |
660 | | |
661 | 48 | size_t SectionList::Slide(addr_t slide_amount, bool slide_children) { |
662 | 48 | size_t count = 0; |
663 | 48 | const_iterator pos, end = m_sections.end(); |
664 | 96 | for (pos = m_sections.begin(); pos != end; ++pos48 ) { |
665 | 48 | if ((*pos)->Slide(slide_amount, slide_children)) |
666 | 48 | ++count; |
667 | 48 | } |
668 | 48 | return count; |
669 | 48 | } |
670 | | |
671 | 2.92k | uint64_t SectionList::GetDebugInfoSize() const { |
672 | 2.92k | uint64_t debug_info_size = 0; |
673 | 16.3k | for (const auto §ion : m_sections) { |
674 | 16.3k | const SectionList &sub_sections = section->GetChildren(); |
675 | 16.3k | if (sub_sections.GetSize() > 0) |
676 | 1.96k | debug_info_size += sub_sections.GetDebugInfoSize(); |
677 | 14.3k | else if (section->ContainsOnlyDebugInfo()) |
678 | 315 | debug_info_size += section->GetFileSize(); |
679 | 16.3k | } |
680 | 2.92k | return debug_info_size; |
681 | 2.92k | } |
682 | | |
683 | | namespace llvm { |
684 | | namespace json { |
685 | | |
686 | | bool fromJSON(const llvm::json::Value &value, |
687 | 5 | lldb_private::JSONSection §ion, llvm::json::Path path) { |
688 | 5 | llvm::json::ObjectMapper o(value, path); |
689 | 5 | return o && o.map("name", section.name) && o.map("type", section.type) && |
690 | 5 | o.map("size", section.address) && o.map("size", section.size); |
691 | 5 | } |
692 | | |
693 | | bool fromJSON(const llvm::json::Value &value, lldb::SectionType &type, |
694 | 1 | llvm::json::Path path) { |
695 | 1 | if (auto str = value.getAsString()) { |
696 | 1 | type = llvm::StringSwitch<lldb::SectionType>(*str) |
697 | 1 | .Case("code", eSectionTypeCode) |
698 | 1 | .Case("container", eSectionTypeContainer) |
699 | 1 | .Case("data", eSectionTypeData) |
700 | 1 | .Case("debug", eSectionTypeDebug) |
701 | 1 | .Default(eSectionTypeInvalid); |
702 | | |
703 | 1 | if (type == eSectionTypeInvalid) { |
704 | 0 | path.report("invalid section type"); |
705 | 0 | return false; |
706 | 0 | } |
707 | | |
708 | 1 | return true; |
709 | 1 | } |
710 | 0 | path.report("expected string"); |
711 | 0 | return false; |
712 | 1 | } |
713 | | } // namespace json |
714 | | } // namespace llvm |