tools/llvm-objcopy/llvm-objcopy.h

   1 //===- llvm-objcopy.h -------------------------------------------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_TOOLS_OBJCOPY_OBJCOPY_H
  10 #define LLVM_TOOLS_OBJCOPY_OBJCOPY_H
  11
  12 #include "llvm/ADT/Twine.h"
  13 #include "llvm/Support/Compiler.h"
  14 #include "llvm/Support/Error.h"
  15 #include "llvm/Support/raw_ostream.h"
  16 #include <string>
  17
  18 namespace llvm {
  19 namespace objcopy {
  20
  21 LLVM_ATTRIBUTE_NORETURN extern void error(Twine Message);
  22 LLVM_ATTRIBUTE_NORETURN extern void error(Error E);
  23 LLVM_ATTRIBUTE_NORETURN extern void reportError(StringRef File, Error E);
  24 LLVM_ATTRIBUTE_NORETURN extern void reportError(StringRef File,
  25                                                 std::error_code EC);
  26
  27 // This is taken from llvm-readobj.
  28 // [see here](llvm/tools/llvm-readobj/llvm-readobj.h:38)
  29 template <class T> T unwrapOrError(Expected<T> EO) {
  30   if (EO)
  31     return *EO;
  32   std::string Buf;
  33   raw_string_ostream OS(Buf);
  34   logAllUnhandledErrors(EO.takeError(), OS);
  35   OS.flush();
  36   error(Buf);
  37 }
  38
  39 } // end namespace objcopy
  40 } // end namespace llvm
  41
  42 #endif // LLVM_TOOLS_OBJCOPY_OBJCOPY_H