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Issue 1969543002: Unified usage of vector<unique_ptr<T>> (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Format Created 4 years, 7 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved. 1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "courgette/disassembler_elf_32.h" 5 #include "courgette/disassembler_elf_32.h"
6 6
7 #include <algorithm> 7 #include <algorithm>
8 #include <utility>
8 9
9 #include "base/logging.h" 10 #include "base/logging.h"
10 #include "courgette/assembly_program.h" 11 #include "courgette/assembly_program.h"
11 #include "courgette/courgette.h" 12 #include "courgette/courgette.h"
12 13
13 namespace courgette { 14 namespace courgette {
14 15
15 namespace { 16 namespace {
16 17
17 // Sorts |section_headers| by file offset and stores the resulting permutation 18 // Sorts |section_headers| by file offset and stores the resulting permutation
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266 for (RVA rva : rvas) { 267 for (RVA rva : rvas) {
267 FileOffset file_offset = RVAToFileOffset(rva); 268 FileOffset file_offset = RVAToFileOffset(rva);
268 if (file_offset == kNoFileOffset) 269 if (file_offset == kNoFileOffset)
269 return false; 270 return false;
270 file_offsets->push_back(file_offset); 271 file_offsets->push_back(file_offset);
271 } 272 }
272 return true; 273 return true;
273 } 274 }
274 275
275 CheckBool DisassemblerElf32::RVAsToFileOffsets( 276 CheckBool DisassemblerElf32::RVAsToFileOffsets(
276 ScopedVector<TypedRVA>* typed_rvas) { 277 std::vector<std::unique_ptr<TypedRVA>>* typed_rvas) {
277 for (TypedRVA* typed_rva : *typed_rvas) { 278 for (auto& typed_rva : *typed_rvas) {
278 FileOffset file_offset = RVAToFileOffset(typed_rva->rva()); 279 FileOffset file_offset = RVAToFileOffset(typed_rva->rva());
279 if (file_offset == kNoFileOffset) 280 if (file_offset == kNoFileOffset)
280 return false; 281 return false;
281 typed_rva->set_file_offset(file_offset); 282 typed_rva->set_file_offset(file_offset);
282 } 283 }
283 return true; 284 return true;
284 } 285 }
285 286
286 CheckBool DisassemblerElf32::ParseFile(AssemblyProgram* program) { 287 CheckBool DisassemblerElf32::ParseFile(AssemblyProgram* program) {
287 // Walk all the bytes in the file, whether or not in a section. 288 // Walk all the bytes in the file, whether or not in a section.
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298 299
299 if (!RVAsToFileOffsets(&rel32_locations_)) 300 if (!RVAsToFileOffsets(&rel32_locations_))
300 return false; 301 return false;
301 std::sort(rel32_locations_.begin(), 302 std::sort(rel32_locations_.begin(),
302 rel32_locations_.end(), 303 rel32_locations_.end(),
303 TypedRVA::IsLessThanByFileOffset); 304 TypedRVA::IsLessThanByFileOffset);
304 305
305 std::vector<FileOffset>::iterator current_abs_offset = abs_offsets.begin(); 306 std::vector<FileOffset>::iterator current_abs_offset = abs_offsets.begin();
306 std::vector<FileOffset>::iterator end_abs_offset = abs_offsets.end(); 307 std::vector<FileOffset>::iterator end_abs_offset = abs_offsets.end();
307 308
308 ScopedVector<TypedRVA>::iterator current_rel = rel32_locations_.begin(); 309 std::vector<std::unique_ptr<TypedRVA>>::iterator current_rel =
309 ScopedVector<TypedRVA>::iterator end_rel = rel32_locations_.end(); 310 rel32_locations_.begin();
311 std::vector<std::unique_ptr<TypedRVA>>::iterator end_rel =
312 rel32_locations_.end();
310 313
311 // Visit section headers ordered by file offset. 314 // Visit section headers ordered by file offset.
312 for (Elf32_Half section_id : section_header_file_offset_order_) { 315 for (Elf32_Half section_id : section_header_file_offset_order_) {
313 const Elf32_Shdr* section_header = SectionHeader(section_id); 316 const Elf32_Shdr* section_header = SectionHeader(section_id);
314 317
315 if (section_header->sh_type == SHT_NOBITS) 318 if (section_header->sh_type == SHT_NOBITS)
316 continue; 319 continue;
317 320
318 if (!ParseSimpleRegion(file_offset, section_header->sh_offset, program)) 321 if (!ParseSimpleRegion(file_offset, section_header->sh_offset, program))
319 return false; 322 return false;
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367 return false; 370 return false;
368 371
369 // Make certain we consume all of the relocations as expected 372 // Make certain we consume all of the relocations as expected
370 return (current_abs_offset == end_abs_offset); 373 return (current_abs_offset == end_abs_offset);
371 } 374 }
372 375
373 CheckBool DisassemblerElf32::ParseProgbitsSection( 376 CheckBool DisassemblerElf32::ParseProgbitsSection(
374 const Elf32_Shdr* section_header, 377 const Elf32_Shdr* section_header,
375 std::vector<FileOffset>::iterator* current_abs_offset, 378 std::vector<FileOffset>::iterator* current_abs_offset,
376 std::vector<FileOffset>::iterator end_abs_offset, 379 std::vector<FileOffset>::iterator end_abs_offset,
377 ScopedVector<TypedRVA>::iterator* current_rel, 380 std::vector<std::unique_ptr<TypedRVA>>::iterator* current_rel,
378 ScopedVector<TypedRVA>::iterator end_rel, 381 std::vector<std::unique_ptr<TypedRVA>>::iterator end_rel,
379 AssemblyProgram* program) { 382 AssemblyProgram* program) {
380 // Walk all the bytes in the file, whether or not in a section. 383 // Walk all the bytes in the file, whether or not in a section.
381 FileOffset file_offset = section_header->sh_offset; 384 FileOffset file_offset = section_header->sh_offset;
382 FileOffset section_end = section_header->sh_offset + section_header->sh_size; 385 FileOffset section_end = section_header->sh_offset + section_header->sh_size;
383 386
384 Elf32_Addr origin = section_header->sh_addr; 387 Elf32_Addr origin = section_header->sh_addr;
385 FileOffset origin_offset = section_header->sh_offset; 388 FileOffset origin_offset = section_header->sh_offset;
386 if (!program->EmitOriginInstruction(origin)) 389 if (!program->EmitOriginInstruction(origin))
387 return false; 390 return false;
388 391
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548 if (!ParseRel32RelocsFromSection(section_header)) 551 if (!ParseRel32RelocsFromSection(section_header))
549 return false; 552 return false;
550 } 553 }
551 if (!found_rel32) 554 if (!found_rel32)
552 VLOG(1) << "Warning: Found no rel32 addresses. Missing .text section?"; 555 VLOG(1) << "Warning: Found no rel32 addresses. Missing .text section?";
553 556
554 return true; 557 return true;
555 } 558 }
556 559
557 } // namespace courgette 560 } // namespace courgette
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