1 files changed, 45 insertions, 35 deletions

diff --git a/contrib/llvm/tools/lld/ELF/Strings.cpp b/contrib/llvm/tools/lld/ELF/Strings.cpp
index 0c21e88..ec3d1f1 100644
--- a/contrib/llvm/tools/lld/ELF/Strings.cpp
+++ b/contrib/llvm/tools/lld/ELF/Strings.cpp
@@ -8,44 +8,59 @@
 //===----------------------------------------------------------------------===//
 
 #include "Strings.h"
+#include "Config.h"
 #include "Error.h"
+#include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/Twine.h"
-#include "llvm/Config/config.h"
+#include "llvm/Demangle/Demangle.h"
 #include <algorithm>
-
-#ifdef HAVE_CXXABI_H
-#include <cxxabi.h>
-#endif
+#include <cstring>
 
 using namespace llvm;
 using namespace lld;
 using namespace lld::elf;
 
-// Returns true if S matches T. S can contain glob meta-characters.
-// The asterisk ('*') matches zero or more characters, and the question
-// mark ('?') matches one character.
-bool elf::globMatch(StringRef S, StringRef T) {
-  for (;;) {
-    if (S.empty())
-      return T.empty();
-    if (S[0] == '*') {
-      S = S.substr(1);
-      if (S.empty())
-        // Fast path. If a pattern is '*', it matches anything.
-        return true;
-      for (size_t I = 0, E = T.size(); I < E; ++I)
-        if (globMatch(S, T.substr(I)))
-          return true;
-      return false;
-    }
-    if (T.empty() || (S[0] != T[0] && S[0] != '?'))
-      return false;
-    S = S.substr(1);
-    T = T.substr(1);
+StringMatcher::StringMatcher(ArrayRef<StringRef> Pat) {
+  for (StringRef S : Pat) {
+    Expected<GlobPattern> Pat = GlobPattern::create(S);
+    if (!Pat)
+      error(toString(Pat.takeError()));
+    else
+      Patterns.push_back(*Pat);
   }
 }
 
+bool StringMatcher::match(StringRef S) const {
+  for (const GlobPattern &Pat : Patterns)
+    if (Pat.match(S))
+      return true;
+  return false;
+}
+
+// If an input string is in the form of "foo.N" where N is a number,
+// return N. Otherwise, returns 65536, which is one greater than the
+// lowest priority.
+int elf::getPriority(StringRef S) {
+  size_t Pos = S.rfind('.');
+  if (Pos == StringRef::npos)
+    return 65536;
+  int V;
+  if (S.substr(Pos + 1).getAsInteger(10, V))
+    return 65536;
+  return V;
+}
+
+bool elf::hasWildcard(StringRef S) {
+  return S.find_first_of("?*[") != StringRef::npos;
+}
+
+StringRef elf::unquote(StringRef S) {
+  if (!S.startswith("\""))
+    return S;
+  return S.substr(1, S.size() - 2);
+}
+
 // Converts a hex string (e.g. "deadbeef") to a vector.
 std::vector<uint8_t> elf::parseHex(StringRef S) {
   std::vector<uint8_t> Hex;
@@ -75,24 +90,19 @@ bool elf::isValidCIdentifier(StringRef S) {
 }
 
 // Returns the demangled C++ symbol name for Name.
-std::string elf::demangle(StringRef Name) {
-#if !defined(HAVE_CXXABI_H)
-  return Name;
-#else
+Optional<std::string> elf::demangle(StringRef Name) {
   // __cxa_demangle can be used to demangle strings other than symbol
   // names which do not necessarily start with "_Z". Name can be
   // either a C or C++ symbol. Don't call __cxa_demangle if the name
   // does not look like a C++ symbol name to avoid getting unexpected
   // result for a C symbol that happens to match a mangled type name.
   if (!Name.startswith("_Z"))
-    return Name;
+    return None;
 
-  char *Buf =
-      abi::__cxa_demangle(Name.str().c_str(), nullptr, nullptr, nullptr);
+  char *Buf = itaniumDemangle(Name.str().c_str(), nullptr, nullptr, nullptr);
   if (!Buf)
-    return Name;
+    return None;
   std::string S(Buf);
   free(Buf);
   return S;
-#endif
 }