1 //===- Error.cpp - system_error extensions for Object -----------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This defines a new error_category for the Object library.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/Object/Error.h"
15 #include "llvm/Support/ErrorHandling.h"
16 #include "llvm/Support/ManagedStatic.h"
19 using namespace object;
22 // FIXME: This class is only here to support the transition to llvm::Error. It
23 // will be removed once this transition is complete. Clients should prefer to
24 // deal with the Error value directly, rather than converting to error_code.
25 class _object_error_category : public std::error_category {
27 const char* name() const noexcept override;
28 std::string message(int ev) const override;
32 const char *_object_error_category::name() const noexcept {
36 std::string _object_error_category::message(int EV) const {
37 object_error E = static_cast<object_error>(EV);
39 case object_error::arch_not_found:
40 return "No object file for requested architecture";
41 case object_error::invalid_file_type:
42 return "The file was not recognized as a valid object file";
43 case object_error::parse_failed:
44 return "Invalid data was encountered while parsing the file";
45 case object_error::unexpected_eof:
46 return "The end of the file was unexpectedly encountered";
47 case object_error::string_table_non_null_end:
48 return "String table must end with a null terminator";
49 case object_error::invalid_section_index:
50 return "Invalid section index";
51 case object_error::bitcode_section_not_found:
52 return "Bitcode section not found in object file";
53 case object_error::invalid_symbol_index:
54 return "Invalid symbol index";
56 llvm_unreachable("An enumerator of object_error does not have a message "
60 char BinaryError::ID = 0;
61 char GenericBinaryError::ID = 0;
63 GenericBinaryError::GenericBinaryError(Twine Msg) : Msg(Msg.str()) {}
65 GenericBinaryError::GenericBinaryError(Twine Msg, object_error ECOverride)
67 setErrorCode(make_error_code(ECOverride));
70 void GenericBinaryError::log(raw_ostream &OS) const {
74 static ManagedStatic<_object_error_category> error_category;
76 const std::error_category &object::object_category() {
77 return *error_category;
80 llvm::Error llvm::object::isNotObjectErrorInvalidFileType(llvm::Error Err) {
82 handleErrors(std::move(Err), [](std::unique_ptr<ECError> M) -> Error {
83 // Try to handle 'M'. If successful, return a success value from
85 if (M->convertToErrorCode() == object_error::invalid_file_type)
86 return Error::success();
88 // We failed to handle 'M' - return it from the handler.
89 // This value will be passed back from catchErrors and
90 // wind up in Err2, where it will be returned from this function.
91 return Error(std::move(M));