Support reading GNU symbol versions in ELFObjectFile
* Add enums and structures for GNU version information.
* Implement extraction of that information on a per-symbol basis (ELFObjectFile::getSymbolVersion).
* Implement a generic interface, GetELFSymbolVersion(), for getting the symbol version from the ObjectFile (hides the templating).
* Have llvm-readobj print out the version, when available.
* Add a test for the new feature: readobj-elf-versioning.test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152436 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Object/readobj-elf-versioning.test b/test/Object/readobj-elf-versioning.test
new file mode 100644
index 0000000..0906f34
--- /dev/null
+++ b/test/Object/readobj-elf-versioning.test
@@ -0,0 +1,15 @@
+RUN: llvm-readobj %p/Inputs/elf-versioning-test.i386 \
+RUN: | FileCheck %s -check-prefix ELF
+RUN: llvm-readobj %p/Inputs/elf-versioning-test.i386 \
+RUN: | FileCheck %s -check-prefix ELF32
+RUN: llvm-readobj %p/Inputs/elf-versioning-test.x86_64 \
+RUN: | FileCheck %s -check-prefix ELF
+RUN: llvm-readobj %p/Inputs/elf-versioning-test.x86_64 \
+RUN: | FileCheck %s -check-prefix ELF64
+
+ELF: foo@@VER2 FUNC {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
+ELF: foo@VER1 FUNC {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
+ELF: unversioned_define FUNC {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} global
+
+ELF32: puts@GLIBC_2.0 FUNC {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} undef,global
+ELF64: puts@GLIBC_2.2.5 FUNC {{[0-9a-f]+}} {{[0-9a-f]+}} {{[0-9a-f]+}} undef,global