[ELF] - Report valid binary filename when reporting error.

[grimar]

Summary

We did not report valid filename for duplicate symbol error when
symbol came from binary input file.
Patch fixes it.

[ruiu]

test/ELF/duplicated-synthetic-sym.s

1–8

Can you change the test? Linking an .s file as a binary file is confusing. Just create a temporary file by doing something like this

RUN: echo abc > %t.bin

and link that file.

[grimar]

• Rebased.

test/ELF/duplicated-synthetic-sym.s

1–8

Done in rL324072.

[ruiu]

LGTM

ELF/InputFiles.h

public:
   ArrayRef<InputSectionBase *> getSections() const {
     assert(FileKind == ObjKind || FileKind == BinaryKind);
     return Sections;
   }
 
   // Returns object file symbols. It is a runtime error to call this
   // function on files of other types.
   ArrayRef<Symbol *> getSymbols() {
-    assert(FileKind == ObjKind || FileKind == BitcodeKind ||
-           FileKind == ArchiveKind);
+    assert(FileKind == BinaryKind || FileKind == ObjKind ||
+           FileKind == BitcodeKind || FileKind == ArchiveKind);
     return Symbols;
   }
 
   // Filename of .a which contained this file. If this file was
   // not in an archive file, it is the empty string. We use this
   // string for creating error messages.
   StringRef ArchiveName;
 

ELF/InputFiles.cpp

static ELFKind getELFKind(MemoryBufferRef MB) {
 
   if (Size == ELFCLASS32)
     return (Endian == ELFDATA2LSB) ? ELF32LEKind : ELF32BEKind;
   return (Endian == ELFDATA2LSB) ? ELF64LEKind : ELF64BEKind;
 }
 
 void BinaryFile::parse() {
   ArrayRef<uint8_t> Data = toArrayRef(MB.getBuffer());
-  auto *Section = make<InputSection>(nullptr, SHF_ALLOC | SHF_WRITE,
-                                     SHT_PROGBITS, 8, Data, ".data");
+  auto *Section = make<InputSection>(this, SHF_ALLOC | SHF_WRITE, SHT_PROGBITS,
+                                     8, Data, ".data");
   Sections.push_back(Section);
 
   // For each input file foo that is embedded to a result as a binary
   // blob, we define _binary_foo_{start,end,size} symbols, so that
   // user programs can access blobs by name. Non-alphanumeric
   // characters in a filename are replaced with underscore.
   std::string S = "_binary_" + MB.getBufferIdentifier().str();
   for (size_t I = 0; I < S.size(); ++I)

test/ELF/duplicated-synthetic-sym.s

 // RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
 // RUN: rm -rf %t.dir
 // RUN: mkdir %t.dir
 // RUN: cd %t.dir
 // RUN: echo > file.bin
 
 // RUN: not ld.lld %t.o --format=binary file.bin -o %t.elf 2>&1 | FileCheck %s
 // RUN: not ld.lld %t.o --format binary file.bin -o %t.elf 2>&1 | FileCheck %s
 
 // CHECK:      duplicate symbol: _binary_file_bin_start
 // CHECK-NEXT: defined at {{.*}}.o:(.text+0x0)
-// CHECK-NEXT: defined at <internal>:(.data+0x0)
+// CHECK-NEXT: defined at file.bin:(.data+0x0)
 
 .globl  _binary_file_bin_start
 _binary_file_bin_start:
   .long 0