[PATCH] D29482: Object: Handle files without a dynamic symbol table.

[Peter Collingbourne via Phabricator via llvm-commits]

pcc created this revision.

https://reviews.llvm.org/D29482

Files:
  llvm/include/llvm/Object/ELFObjectFile.h
  llvm/test/Object/nm-shared-object.test


Index: llvm/test/Object/nm-shared-object.test
===================================================================
--- llvm/test/Object/nm-shared-object.test
+++ llvm/test/Object/nm-shared-object.test
@@ -29,3 +29,5 @@
 RUN:         | FileCheck %s -check-prefix ERROR
 
 ERROR: File format has no dynamic symbol table.
+
+RUN: llvm-nm -D %p/Inputs/trivial-object-test.elf-i386 | count 0
Index: llvm/include/llvm/Object/ELFObjectFile.h
===================================================================
--- llvm/include/llvm/Object/ELFObjectFile.h
+++ llvm/include/llvm/Object/ELFObjectFile.h
@@ -895,6 +895,8 @@
 template <class ELFT>
 elf_symbol_iterator ELFObjectFile<ELFT>::dynamic_symbol_end() const {
   const Elf_Shdr *SymTab = DotDynSymSec;
+  if (!SymTab)
+    return dynamic_symbol_begin();
   DataRefImpl Sym = toDRI(SymTab, SymTab->sh_size / sizeof(Elf_Sym));
   return basic_symbol_iterator(SymbolRef(Sym, this));
 }


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