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llvm-project/lld/ELF
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Fangrui Song bd086817f6 [ELF] Initialize Target before it may be dereferenced by findAux when reporting "duplicate symbol" error 
for (InputFile *F : Files)
      Symtab->addFile<ELFT>(F); // if there is a duplicate symbol error

    ...

    Target = getTarget();

When parsing .debug_info in the object file (for better diagnostics),
DWARF.cpp findAux may dereference the null pointer Target

    auto *DR = dyn_cast<Defined>(&File->getRelocTargetSym(Rel));
    if (!DR) {
      // Broken debug info may point to a non-defined symbol,
      // some asan object files may also contain R_X86_64_NONE
      RelType Type = Rel.getType(Config->IsMips64EL);
      if (Type != Target->NoneRel) /// Target is null

Move the assignment of Target to an earlier place to fix this.

Reviewed By: ruiu

Differential Revision: https://reviews.llvm.org/D61712

llvm-svn: 360305
 		2019-05-09 01:45:53 +00:00
..
Arch [mips] Fix ld instruction in PLT entries on MIPS64 2019-05-07 20:26:23 +00:00
AArch64ErrataFix.cpp Use llvm::stable_sort 2019-04-23 02:42:06 +00:00
AArch64ErrataFix.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
CMakeLists.txt Fail early if an output file is not writable 2019-03-11 16:30:55 +00:00
CallGraphSort.cpp Use llvm::stable_sort 2019-04-23 02:42:06 +00:00
CallGraphSort.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Config.h [ELF] Dump symbols ordered by profiled guided section layout to file. 2019-03-27 23:52:22 +00:00
DWARF.cpp [ELF] Use llvm::bsearch. NFC 2019-04-17 08:00:46 +00:00
DWARF.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Driver.cpp [ELF] Initialize Target before it may be dereferenced by findAux when reporting "duplicate symbol" error 2019-05-09 01:45:53 +00:00
Driver.h [WebAssembly] Handle command line options consistently with the ELF backend. 2019-05-08 16:20:05 +00:00
DriverUtils.cpp Add typo correction for command-line flags to ELF and COFF lld drivers 2019-05-07 13:48:30 +00:00
EhFrame.cpp [ELF][MachO][wasm] Simplify range-style std::find{,_if} with STLExtras.h utilities. NFC 2019-03-29 16:21:16 +00:00
EhFrame.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ICF.cpp Use llvm::stable_sort 2019-04-23 02:42:06 +00:00
ICF.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
InputFiles.cpp Rename a variable and add a comment. 2019-04-10 06:32:05 +00:00
InputFiles.h [ELF] Fix typo: .symtab_shndxr -> .symtab_shndx 2019-04-12 02:20:52 +00:00
InputSection.cpp [PPC64] toc-indirect to toc-relative relaxation 2019-05-07 04:26:05 +00:00
InputSection.h [ELF] Place SectionPiece::{Live,Hash} bit fields together 2019-04-18 07:46:09 +00:00
LTO.cpp [ELF] Reorder BitcodeFiles.empty() to call thinLTOCreateEmptyIndexFiles() in only one place 2019-05-07 10:40:26 +00:00
LTO.h [ELF] Reorder BitcodeFiles.empty() to call thinLTOCreateEmptyIndexFiles() in only one place 2019-05-07 10:40:26 +00:00
LinkerScript.cpp [LLD][ELF] /DISCARD/ output sections should not be orphans 2019-04-30 14:31:22 +00:00
LinkerScript.h Replace `typedef A B` with `using B = A`. NFC. 2019-04-01 00:11:24 +00:00
MapFile.cpp Use llvm::stable_sort 2019-04-23 02:42:06 +00:00
MapFile.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
MarkLive.cpp Discard debuginfo for object files empty after GC 2019-04-10 10:37:10 +00:00
MarkLive.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Options.td [ELF] Dump symbols ordered by profiled guided section layout to file. 2019-03-27 23:52:22 +00:00
OutputSections.cpp Use llvm::stable_sort 2019-04-23 02:42:06 +00:00
OutputSections.h [LLD][ELF] - Do not remove empty sections referenced in LOADADDR/ADDR commands. 2019-04-26 06:59:30 +00:00
README.md
…
Relocations.cpp [PPC64] toc-indirect to toc-relative relaxation 2019-05-07 04:26:05 +00:00
Relocations.h [PPC64] toc-indirect to toc-relative relaxation 2019-05-07 04:26:05 +00:00
ScriptLexer.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ScriptLexer.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
ScriptParser.cpp [LLD][ELF] - Do not remove empty sections referenced in LOADADDR/ADDR commands. 2019-04-26 06:59:30 +00:00
ScriptParser.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
SymbolTable.cpp [ELF] Reorder BitcodeFiles.empty() to call thinLTOCreateEmptyIndexFiles() in only one place 2019-05-07 10:40:26 +00:00
SymbolTable.h De-template SymbolTable::addShared. 2019-04-09 08:52:00 +00:00
Symbols.cpp [ELF] Emit weak-undef symbols in .dynsym of a PIE binary only if linked against shared libs. 2019-03-18 15:32:57 +00:00
Symbols.h ELF: De-template SharedFile. NFCI. 2019-04-08 17:35:55 +00:00
SyntheticSections.cpp Use llvm::stable_sort 2019-04-23 02:42:06 +00:00
SyntheticSections.h [ELF] Place SectionPiece::{Live,Hash} bit fields together 2019-04-18 07:46:09 +00:00
Target.cpp [PPC64] toc-indirect to toc-relative relaxation 2019-05-07 04:26:05 +00:00
Target.h [PPC64] toc-indirect to toc-relative relaxation 2019-05-07 04:26:05 +00:00
Thunks.cpp [mips] Remove redundant setup of less-significant bit. NFC 2019-03-13 16:00:35 +00:00
Thunks.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Writer.cpp [ELF] Place SHT_NOTE sections with the same alignment into one PT_NOTE 2019-05-03 00:35:49 +00:00
Writer.h [ELF] Delete unused forward declarations and unused DynamicReloc::getInputSec(). NFC 2019-03-15 07:16:39 +00:00

README.md

See docs/NewLLD.rst