[lld] r336349 - [ELF] - Check we do not assign version to undefined symbol when using extern C++.

[George Rimar via llvm-commits]

Author: grimar
Date: Thu Jul  5 06:39:39 2018
New Revision: 336349

URL: http://llvm.org/viewvc/llvm-project?rev=336349&view=rev
Log:
[ELF] - Check we do not assign version to undefined symbol when using extern C++.

This tests the following 'continue' line in getDemangledSyms():
https://github.com/llvm-mirror/lld/blob/master/ELF/SymbolTable.cpp#L677

Added:
    lld/trunk/test/ELF/version-script-extern-undefined.s

Added: lld/trunk/test/ELF/version-script-extern-undefined.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/version-script-extern-undefined.s?rev=336349&view=auto
==============================================================================
--- lld/trunk/test/ELF/version-script-extern-undefined.s (added)
+++ lld/trunk/test/ELF/version-script-extern-undefined.s Thu Jul  5 06:39:39 2018
@@ -0,0 +1,19 @@
+# REQUIRES: x86
+
+# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
+# RUN: echo "FOO { global: extern \"C++\" { \"abb(int)\"; }; };" > %t.script
+# RUN: ld.lld --version-script %t.script -shared %t.o -o %t.so
+# RUN: llvm-readobj -V %t.so | FileCheck %s
+
+# CHECK:      Symbols [
+# CHECK-NEXT:   Symbol {
+# CHECK-NEXT:     Version: 0
+# CHECK-NEXT:     Name: @
+# CHECK-NEXT:   }
+# CHECK-NEXT:   Symbol {
+# CHECK-NEXT:     Version: 1
+# CHECK-NEXT:     Name: _Z3abbi@
+# CHECK-NEXT:   }
+# CHECK-NEXT: ]
+
+.globl _Z3abbi