From 08b1862cafc44572f1e75f7a1e0dcd3d73e13e40 Mon Sep 17 00:00:00 2001
From: George Rimar <grimar@accesssoftek.com>
Date: Fri, 9 Sep 2016 12:56:55 +0000
Subject: [PATCH] [ELF] - Revert r281038 to see if that unbreaks build bot.

http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast/builds/19703

llvm-svn: 281041
---
 lld/ELF/Config.h                           |  1 -
 lld/ELF/LinkerScript.cpp                   | 19 ++++++-------------
 lld/ELF/ScriptParser.cpp                   |  7 ++-----
 lld/ELF/SymbolTable.cpp                    |  5 +++--
 lld/test/ELF/version-script-extern-exact.s | 22 ----------------------
 5 files changed, 11 insertions(+), 43 deletions(-)
 delete mode 100644 lld/test/ELF/version-script-extern-exact.s

diff --git a/lld/ELF/Config.h b/lld/ELF/Config.h
index 98246c3..4d7cf3e2 100644
--- a/lld/ELF/Config.h
+++ b/lld/ELF/Config.h
@@ -45,7 +45,6 @@ enum class UnresolvedPolicy { NoUndef, ReportError, Warn, Ignore };
 struct SymbolVersion {
   llvm::StringRef Name;
   bool IsExternCpp;
-  bool HasWildcards;
 };
 
 // This struct contains symbols version definition that
diff --git a/lld/ELF/LinkerScript.cpp b/lld/ELF/LinkerScript.cpp
index d5e7bc44..9d6935f 100644
--- a/lld/ELF/LinkerScript.cpp
+++ b/lld/ELF/LinkerScript.cpp
@@ -780,18 +780,12 @@ void ScriptParser::addFile(StringRef S) {
   }
 }
 
-static StringRef unquote(StringRef S) {
-  if (!S.startswith("\""))
-    return S;
-  return S.substr(1, S.size() - 2);
-}
-
 void ScriptParser::readAsNeeded() {
   expect("(");
   bool Orig = Config->AsNeeded;
   Config->AsNeeded = true;
   while (!Error && !skip(")"))
-    addFile(unquote(next()));
+    addFile(next());
   Config->AsNeeded = Orig;
 }
 
@@ -817,7 +811,7 @@ void ScriptParser::readGroup() {
     if (Tok == "AS_NEEDED")
       readAsNeeded();
     else
-      addFile(unquote(Tok));
+      addFile(Tok);
   }
 }
 
@@ -1010,7 +1004,7 @@ Expr ScriptParser::readAssert() {
   expect("(");
   Expr E = readExpr();
   expect(",");
-  StringRef Msg = unquote(next());
+  StringRef Msg = next();
   expect(")");
   return [=](uint64_t Dot) {
     uint64_t V = E(Dot);
@@ -1427,14 +1421,13 @@ void ScriptParser::readLocal() {
 }
 
 void ScriptParser::readExtern(std::vector<SymbolVersion> *Globals) {
-  expect("\"C++\"");
+  expect("C++");
   expect("{");
 
   for (;;) {
     if (peek() == "}" || Error)
       break;
-    bool HasWildcard = !peek().startswith("\"") && hasWildcard(peek());
-    Globals->push_back({unquote(next()), true, HasWildcard});
+    Globals->push_back({next(), true});
     expect(";");
   }
 
@@ -1457,7 +1450,7 @@ void ScriptParser::readGlobal(StringRef VerStr) {
     if (Cur == "}" || Cur == "local:" || Error)
       return;
     next();
-    Globals->push_back({unquote(Cur), false, hasWildcard(Cur)});
+    Globals->push_back({Cur, false});
     expect(";");
   }
 }
diff --git a/lld/ELF/ScriptParser.cpp b/lld/ELF/ScriptParser.cpp
index 97d68d9..19e20b6 100644
--- a/lld/ELF/ScriptParser.cpp
+++ b/lld/ELF/ScriptParser.cpp
@@ -60,17 +60,14 @@ std::vector<StringRef> ScriptParserBase::tokenize(StringRef S) {
     if (S.empty())
       return Ret;
 
-    // Quoted token. Note that double-quote characters are parts of a token
-    // because, in a glob match context, only unquoted tokens are interpreted
-    // as glob patterns. Double-quoted tokens are literal patterns in that
-    // context.
+    // Quoted token.
     if (S.startswith("\"")) {
       size_t E = S.find("\"", 1);
       if (E == StringRef::npos) {
         error("unclosed quote");
         return {};
       }
-      Ret.push_back(S.take_front(E + 1));
+      Ret.push_back(S.substr(1, E - 1));
       S = S.substr(E + 1);
       continue;
     }
diff --git a/lld/ELF/SymbolTable.cpp b/lld/ELF/SymbolTable.cpp
index f758247..d80e512 100644
--- a/lld/ELF/SymbolTable.cpp
+++ b/lld/ELF/SymbolTable.cpp
@@ -18,6 +18,7 @@
 #include "Config.h"
 #include "Error.h"
 #include "LinkerScript.h"
+#include "Strings.h"
 #include "SymbolListFile.h"
 #include "Symbols.h"
 #include "llvm/Bitcode/ReaderWriter.h"
@@ -677,7 +678,7 @@ template <class ELFT> void SymbolTable<ELFT>::scanVersionScript() {
   // i.e. version definitions not containing any glob meta-characters.
   for (VersionDefinition &V : Config->VersionDefinitions) {
     for (SymbolVersion Sym : V.Globals) {
-      if (Sym.HasWildcards)
+      if (hasWildcard(Sym.Name))
         continue;
       StringRef N = Sym.Name;
       SymbolBody *B = Sym.IsExternCpp ? findDemangled(Demangled, N) : find(N);
@@ -692,7 +693,7 @@ template <class ELFT> void SymbolTable<ELFT>::scanVersionScript() {
   for (size_t I = Config->VersionDefinitions.size() - 1; I != (size_t)-1; --I) {
     VersionDefinition &V = Config->VersionDefinitions[I];
     for (SymbolVersion &Sym : V.Globals) {
-      if (!Sym.HasWildcards)
+      if (!hasWildcard(Sym.Name))
         continue;
       Regex Re = compileGlobPatterns({Sym.Name});
       std::vector<SymbolBody *> Syms =
diff --git a/lld/test/ELF/version-script-extern-exact.s b/lld/test/ELF/version-script-extern-exact.s
deleted file mode 100644
index b33ea35..0000000
--- a/lld/test/ELF/version-script-extern-exact.s
+++ /dev/null
@@ -1,22 +0,0 @@
-# REQUIRES: x86
-
-# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
-# RUN: echo "FOO { global: extern \"C++\" { \"aaa*\"; }; };" > %t.script
-# RUN: ld.lld --version-script %t.script -shared %t.o -o %t.so
-# RUN: llvm-readobj -V -dyn-symbols %t.so | FileCheck %s
-
-# CHECK: Symbol {
-# CHECK:   Name: _Z3aaaPf@ (1)
-# CHECK: Symbol {
-# CHECK:   Name: _Z3aaaPi@ (10)
-
-.text
-.globl _Z3aaaPi
-.type _Z3aaaPi,@function
-_Z3aaaPi:
-retq
-
-.globl _Z3aaaPf
-.type _Z3aaaPf,@function
-_Z3aaaPf:
-retq
-- 
2.7.4