[lld] r271950 - Ignore the "globally available" version.

[Rafael Espindola via llvm-commits]

Author: rafael
Date: Mon Jun  6 17:42:57 2016
New Revision: 271950

URL: http://llvm.org/viewvc/llvm-project?rev=271950&view=rev
Log:
Ignore the "globally available" version.

Reduced from a firefox build.

Added:
    lld/trunk/test/ELF/Inputs/version-use.script
    lld/trunk/test/ELF/Inputs/version-use.so   (with props)
    lld/trunk/test/ELF/version-use.s
Modified:
    lld/trunk/ELF/InputFiles.cpp

Modified: lld/trunk/ELF/InputFiles.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/InputFiles.cpp?rev=271950&r1=271949&r2=271950&view=diff
==============================================================================
--- lld/trunk/ELF/InputFiles.cpp (original)
+++ lld/trunk/ELF/InputFiles.cpp Mon Jun  6 17:42:57 2016
@@ -527,7 +527,7 @@ template <class ELFT> void SharedFile<EL
 
     if (Versym) {
       // Ignore local symbols and non-default versions.
-      if (VersymIndex == 0 || (VersymIndex & VERSYM_HIDDEN))
+      if (VersymIndex == 0 || VersymIndex == 1 || (VersymIndex & VERSYM_HIDDEN))
         continue;
     }
     elf::Symtab<ELFT>::X->addShared(this, Name, Sym, Verdefs[VersymIndex]);

Added: lld/trunk/test/ELF/Inputs/version-use.script
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/Inputs/version-use.script?rev=271950&view=auto
==============================================================================
--- lld/trunk/test/ELF/Inputs/version-use.script (added)
+++ lld/trunk/test/ELF/Inputs/version-use.script Mon Jun  6 17:42:57 2016
@@ -0,0 +1,6 @@
+ABC {
+global:
+foo;
+local:
+*;
+};

Added: lld/trunk/test/ELF/Inputs/version-use.so
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/Inputs/version-use.so?rev=271950&view=auto
==============================================================================
Binary files lld/trunk/test/ELF/Inputs/version-use.so (added) and lld/trunk/test/ELF/Inputs/version-use.so Mon Jun  6 17:42:57 2016 differ

Propchange: lld/trunk/test/ELF/Inputs/version-use.so
------------------------------------------------------------------------------
    svn:executable = *

Added: lld/trunk/test/ELF/version-use.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/version-use.s?rev=271950&view=auto
==============================================================================
--- lld/trunk/test/ELF/version-use.s (added)
+++ lld/trunk/test/ELF/version-use.s Mon Jun  6 17:42:57 2016
@@ -0,0 +1,9 @@
+// REQUIRES: x86
+// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux
+// RUN: ld.lld %t.o %p/Inputs/version-use.so -o %t.so -shared
+// RUN: llvm-readobj -s %t.so | FileCheck %s
+
+
+        call    bar at PLT
+
+// CHECK-NOT: SHT_GNU_versym