1 files changed, 84 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Host/common/OptionParser.cpp b/contrib/llvm-project/lldb/source/Host/common/OptionParser.cpp
new file mode 100644
index 000000000000..0274fdc4ac3f
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Host/common/OptionParser.cpp
@@ -0,0 +1,84 @@
+//===-- source/Host/common/OptionParser.cpp -------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Host/OptionParser.h"
+#include "lldb/Host/HostGetOpt.h"
+#include "lldb/Utility/OptionDefinition.h"
+#include "lldb/lldb-private-types.h"
+
+#include <vector>
+
+using namespace lldb_private;
+
+void OptionParser::Prepare(std::unique_lock<std::mutex> &lock) {
+  static std::mutex g_mutex;
+  lock = std::unique_lock<std::mutex>(g_mutex);
+#ifdef __GLIBC__
+  optind = 0;
+#else
+  optreset = 1;
+  optind = 1;
+#endif
+}
+
+void OptionParser::EnableError(bool error) { opterr = error ? 1 : 0; }
+
+int OptionParser::Parse(llvm::MutableArrayRef<char *> argv,
+                        llvm::StringRef optstring, const Option *longopts,
+                        int *longindex) {
+  std::vector<option> opts;
+  while (longopts->definition != nullptr) {
+    option opt;
+    opt.flag = longopts->flag;
+    opt.val = longopts->val;
+    opt.name = longopts->definition->long_option;
+    opt.has_arg = longopts->definition->option_has_arg;
+    opts.push_back(opt);
+    ++longopts;
+  }
+  opts.push_back(option());
+  std::string opt_cstr = std::string(optstring);
+  return getopt_long_only(argv.size() - 1, argv.data(), opt_cstr.c_str(),
+                          &opts[0], longindex);
+}
+
+char *OptionParser::GetOptionArgument() { return optarg; }
+
+int OptionParser::GetOptionIndex() { return optind; }
+
+int OptionParser::GetOptionErrorCause() { return optopt; }
+
+std::string OptionParser::GetShortOptionString(struct option *long_options) {
+  std::string s;
+  int i = 0;
+  bool done = false;
+  while (!done) {
+    if (long_options[i].name == nullptr && long_options[i].has_arg == 0 &&
+        long_options[i].flag == nullptr && long_options[i].val == 0) {
+      done = true;
+    } else {
+      if (long_options[i].flag == nullptr && isalpha(long_options[i].val)) {
+        s.append(1, (char)long_options[i].val);
+        switch (long_options[i].has_arg) {
+        default:
+        case no_argument:
+          break;
+
+        case optional_argument:
+          s.append(2, ':');
+          break;
+        case required_argument:
+          s.append(1, ':');
+          break;
+        }
+      }
+      ++i;
+    }
+  }
+  return s;
+}