Small fix for llvm-nm handling of weak symbols on ELF (print 'v').

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200808 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Object/Inputs/weak.elf-x86-64 b/test/Object/Inputs/weak.elf-x86-64
new file mode 100644 (file)
index 0000000..e45f988
Binary files /dev/null and b/test/Object/Inputs/weak.elf-x86-64 differ

diff --git a/test/Object/nm-trivial-object.test b/test/Object/nm-trivial-object.test
index d13d217..c2d2ebb 100644 (file)
--- a/test/Object/nm-trivial-object.test
+++ b/test/Object/nm-trivial-object.test
@@ -6,6 +6,8 @@ RUN: llvm-nm %p/Inputs/trivial-object-test.elf-i386 \
 RUN:         | FileCheck %s -check-prefix ELF
 RUN: llvm-nm %p/Inputs/trivial-object-test.elf-x86-64 \
 RUN:         | FileCheck %s -check-prefix ELF
+RUN: llvm-nm %p/Inputs/weak.elf-x86-64 \
+RUN:         | FileCheck %s -check-prefix WEAK-ELF
 RUN: llvm-nm %p/Inputs/trivial-object-test.macho-i386 \
 RUN:         | FileCheck %s -check-prefix macho
 RUN: llvm-nm %p/Inputs/trivial-object-test.macho-x86-64 \
@@ -34,6 +36,10 @@ ELF:          U SomeOtherFunction
 ELF: 00000000 T main
 ELF:          U puts
 
+WEAK-ELF:          w f1
+WEAK-ELF: 00000000 W f2
+WEAK-ELF:          v x1
+WEAK-ELF: 00000000 V x2
 
 macho: 00000000 U _SomeOtherFunction
 macho: 00000000 T _main

diff --git a/tools/llvm-nm/llvm-nm.cpp b/tools/llvm-nm/llvm-nm.cpp
index 5b8bafc..8d1fa72 100644 (file)
--- a/tools/llvm-nm/llvm-nm.cpp
+++ b/tools/llvm-nm/llvm-nm.cpp
@@ -360,8 +360,12 @@ static char getSymbolNMTypeChar(ELFObjectFile<ELFT> &Obj, symbol_iterator I) {
     Ret = ::toupper(Ret);
     break;
   case ELF::STB_WEAK:
-    if (EF.getSymbolTableIndex(ESym) == ELF::SHN_UNDEF)
-      Ret = 'w';
+    if (EF.getSymbolTableIndex(ESym) == ELF::SHN_UNDEF) {
+      if (ESym->getType() == ELF::STT_OBJECT)
+        Ret = 'v';
+      else
+        Ret = 'w';
+    }
     else if (ESym->getType() == ELF::STT_OBJECT)
       Ret = 'V';
     else