1 files changed, 62 insertions, 0 deletions
diff --git a/Common/Args.cpp b/Common/Args.cpp
new file mode 100644
index 000000000000..680cf5bd0a6e
--- /dev/null
+++ b/Common/Args.cpp
@@ -0,0 +1,62 @@
+//===- Args.cpp -----------------------------------------------------------===//
+//
+//                             The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lld/Common/Args.h"
+#include "lld/Common/ErrorHandler.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Option/ArgList.h"
+
+using namespace llvm;
+using namespace lld;
+
+int lld::args::getInteger(opt::InputArgList &Args, unsigned Key, int Default) {
+  int V = Default;
+  if (auto *Arg = Args.getLastArg(Key)) {
+    StringRef S = Arg->getValue();
+    if (!to_integer(S, V, 10))
+      error(Arg->getSpelling() + ": number expected, but got '" + S + "'");
+  }
+  return V;
+}
+
+std::vector<StringRef> lld::args::getStrings(opt::InputArgList &Args, int Id) {
+  std::vector<StringRef> V;
+  for (auto *Arg : Args.filtered(Id))
+    V.push_back(Arg->getValue());
+  return V;
+}
+
+uint64_t lld::args::getZOptionValue(opt::InputArgList &Args, int Id,
+                                    StringRef Key, uint64_t Default) {
+  for (auto *Arg : Args.filtered(Id)) {
+    std::pair<StringRef, StringRef> KV = StringRef(Arg->getValue()).split('=');
+    if (KV.first == Key) {
+      uint64_t Result = Default;
+      if (!to_integer(KV.second, Result))
+        error("invalid " + Key + ": " + KV.second);
+      return Result;
+    }
+  }
+  return Default;
+}
+
+std::vector<StringRef> lld::args::getLines(MemoryBufferRef MB) {
+  SmallVector<StringRef, 0> Arr;
+  MB.getBuffer().split(Arr, '\n');
+
+  std::vector<StringRef> Ret;
+  for (StringRef S : Arr) {
+    S = S.trim();
+    if (!S.empty() && S[0] != '#')
+      Ret.push_back(S);
+  }
+  return Ret;
+}