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-rw-r--r--contrib/llvm-project/llvm/tools/llvm-objdump/ELFDump.cpp39
1 files changed, 20 insertions, 19 deletions
diff --git a/contrib/llvm-project/llvm/tools/llvm-objdump/ELFDump.cpp b/contrib/llvm-project/llvm/tools/llvm-objdump/ELFDump.cpp
index ca73dafe2b8e..61676b4323d2 100644
--- a/contrib/llvm-project/llvm/tools/llvm-objdump/ELFDump.cpp
+++ b/contrib/llvm-project/llvm/tools/llvm-objdump/ELFDump.cpp
@@ -282,27 +282,28 @@ static void printProgramHeaders(const ELFFile<ELFT> &Obj, StringRef FileName) {
}
template <class ELFT>
-static void printSymbolVersionDependency(ArrayRef<uint8_t> Contents,
- StringRef StrTab) {
+static void printSymbolVersionDependency(StringRef FileName,
+ const ELFFile<ELFT> &Obj,
+ const typename ELFT::Shdr &Sec) {
outs() << "\nVersion References:\n";
- const uint8_t *Buf = Contents.data();
- while (Buf) {
- auto *Verneed = reinterpret_cast<const typename ELFT::Verneed *>(Buf);
- outs() << " required from "
- << StringRef(StrTab.drop_front(Verneed->vn_file).data()) << ":\n";
+ auto WarningHandler = [&](const Twine &Msg) {
+ reportWarning(Msg, FileName);
+ return Error::success();
+ };
+ Expected<std::vector<VerNeed>> V =
+ Obj.getVersionDependencies(Sec, WarningHandler);
+ if (!V) {
+ reportWarning(toString(V.takeError()), FileName);
+ return;
+ }
- const uint8_t *BufAux = Buf + Verneed->vn_aux;
- while (BufAux) {
- auto *Vernaux = reinterpret_cast<const typename ELFT::Vernaux *>(BufAux);
- outs() << " "
- << format("0x%08" PRIx32 " ", (uint32_t)Vernaux->vna_hash)
- << format("0x%02" PRIx16 " ", (uint16_t)Vernaux->vna_flags)
- << format("%02" PRIu16 " ", (uint16_t)Vernaux->vna_other)
- << StringRef(StrTab.drop_front(Vernaux->vna_name).data()) << '\n';
- BufAux = Vernaux->vna_next ? BufAux + Vernaux->vna_next : nullptr;
- }
- Buf = Verneed->vn_next ? Buf + Verneed->vn_next : nullptr;
+ raw_fd_ostream &OS = outs();
+ for (const VerNeed &VN : *V) {
+ OS << " required from " << VN.File << ":\n";
+ for (const VernAux &Aux : VN.AuxV)
+ OS << format(" 0x%08x 0x%02x %02u %s\n", Aux.Hash, Aux.Flags,
+ Aux.Other, Aux.Name.c_str());
}
}
@@ -355,7 +356,7 @@ static void printSymbolVersionInfo(const ELFFile<ELFT> &Elf,
StringRef StrTab = unwrapOrError(Elf.getStringTable(*StrTabSec), FileName);
if (Shdr.sh_type == ELF::SHT_GNU_verneed)
- printSymbolVersionDependency<ELFT>(Contents, StrTab);
+ printSymbolVersionDependency<ELFT>(FileName, Elf, Shdr);
else
printSymbolVersionDefinition<ELFT>(Shdr, Contents, StrTab);
}