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Side by Side Diff: src/IceELFObjectWriter.cpp

Issue 1651163002: Subzero. Enables moar complex relocation offsets. (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: Fixes Absolute Relocation Type for x86-64. Created 4 years, 10 months ago
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1 //===- subzero/src/IceELFObjectWriter.cpp - ELF object file writer --------===// 1 //===- subzero/src/IceELFObjectWriter.cpp - ELF object file writer --------===//
2 // 2 //
3 // The Subzero Code Generator 3 // The Subzero Code Generator
4 // 4 //
5 // This file is distributed under the University of Illinois Open Source 5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details. 6 // License. See LICENSE.TXT for details.
7 // 7 //
8 //===----------------------------------------------------------------------===// 8 //===----------------------------------------------------------------------===//
9 /// 9 ///
10 /// \file 10 /// \file
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249 if (IsInternal && !Ctx.getFlags().getDisableInternal()) { 249 if (IsInternal && !Ctx.getFlags().getDisableInternal()) {
250 SymbolType = STT_NOTYPE; 250 SymbolType = STT_NOTYPE;
251 SymbolBinding = STB_LOCAL; 251 SymbolBinding = STB_LOCAL;
252 } else { 252 } else {
253 SymbolType = STT_FUNC; 253 SymbolType = STT_FUNC;
254 SymbolBinding = STB_GLOBAL; 254 SymbolBinding = STB_GLOBAL;
255 } 255 }
256 SymTab->createDefinedSym(FuncName, SymbolType, SymbolBinding, Section, 256 SymTab->createDefinedSym(FuncName, SymbolType, SymbolBinding, Section,
257 OffsetInSection, SymbolSize); 257 OffsetInSection, SymbolSize);
258 StrTab->add(FuncName); 258 StrTab->add(FuncName);
259 for (const auto &InternalReloc : Asm->getInternalRelocations()) {
260 const IceString &RelocName = InternalReloc.first;
261 constexpr uint8_t RelocSymbolType = STT_NOTYPE;
262 constexpr uint8_t RelocSymbolBinding = STB_LOCAL;
263 const SizeT RelocOffsetInSection = OffsetInSection + InternalReloc.second;
264 SymTab->createDefinedSym(RelocName, RelocSymbolType, RelocSymbolBinding,
265 Section, RelocOffsetInSection, SymbolSize);
266 StrTab->add(RelocName);
267 }
268 259
269 // Copy the fixup information from per-function Assembler memory to the 260 // Copy the fixup information from per-function Assembler memory to the
270 // object writer's memory, for writing later. 261 // object writer's memory, for writing later.
271 if (!Asm->fixups().empty()) { 262 if (!Asm->fixups().empty()) {
272 RelSection->addRelocations(OffsetInSection, Asm->fixups()); 263 RelSection->addRelocations(OffsetInSection, Asm->fixups());
273 } 264 }
274 } 265 }
275 266
276 namespace { 267 namespace {
277 268
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689 if (ELF64) { 680 if (ELF64) {
690 writeELFHeaderInternal<true>(ShOffset, ShStrTab->getNumber(), 681 writeELFHeaderInternal<true>(ShOffset, ShStrTab->getNumber(),
691 AllSections.size()); 682 AllSections.size());
692 } else { 683 } else {
693 writeELFHeaderInternal<false>(ShOffset, ShStrTab->getNumber(), 684 writeELFHeaderInternal<false>(ShOffset, ShStrTab->getNumber(),
694 AllSections.size()); 685 AllSections.size());
695 } 686 }
696 } 687 }
697 688
698 } // end of namespace Ice 689 } // end of namespace Ice
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