95 lines
3.3 KiB
C++
95 lines
3.3 KiB
C++
|
//===- Error.cpp - system_error extensions for Object -----------*- C++ -*-===//
|
||
|
|
//
|
||
|
|
// 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
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This defines a new error_category for the Object library.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include "llvm/Object/Error.h"
|
||
|
|
#include "llvm/ADT/Twine.h"
|
||
|
|
#include "llvm/Support/ErrorHandling.h"
|
||
|
|
#include "llvm/Support/ManagedStatic.h"
|
||
|
|
|
||
|
|
using namespace llvm;
|
||
|
|
using namespace object;
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
// FIXME: This class is only here to support the transition to llvm::Error. It
|
||
|
|
// will be removed once this transition is complete. Clients should prefer to
|
||
|
|
// deal with the Error value directly, rather than converting to error_code.
|
||
|
|
class _object_error_category : public std::error_category {
|
||
|
|
public:
|
||
|
|
const char* name() const noexcept override;
|
||
|
|
std::string message(int ev) const override;
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
const char *_object_error_category::name() const noexcept {
|
||
|
|
return "llvm.object";
|
||
|
|
}
|
||
|
|
|
||
|
|
std::string _object_error_category::message(int EV) const {
|
||
|
|
object_error E = static_cast<object_error>(EV);
|
||
|
|
switch (E) {
|
||
|
|
case object_error::arch_not_found:
|
||
|
|
return "No object file for requested architecture";
|
||
|
|
case object_error::invalid_file_type:
|
||
|
|
return "The file was not recognized as a valid object file";
|
||
|
|
case object_error::parse_failed:
|
||
|
|
return "Invalid data was encountered while parsing the file";
|
||
|
|
case object_error::unexpected_eof:
|
||
|
|
return "The end of the file was unexpectedly encountered";
|
||
|
|
case object_error::string_table_non_null_end:
|
||
|
|
return "String table must end with a null terminator";
|
||
|
|
case object_error::invalid_section_index:
|
||
|
|
return "Invalid section index";
|
||
|
|
case object_error::bitcode_section_not_found:
|
||
|
|
return "Bitcode section not found in object file";
|
||
|
|
case object_error::invalid_symbol_index:
|
||
|
|
return "Invalid symbol index";
|
||
|
|
}
|
||
|
|
llvm_unreachable("An enumerator of object_error does not have a message "
|
||
|
|
"defined.");
|
||
|
|
}
|
||
|
|
|
||
|
|
void BinaryError::anchor() {}
|
||
|
|
char BinaryError::ID = 0;
|
||
|
|
char GenericBinaryError::ID = 0;
|
||
|
|
|
||
|
|
GenericBinaryError::GenericBinaryError(const Twine &Msg) : Msg(Msg.str()) {}
|
||
|
|
|
||
|
|
GenericBinaryError::GenericBinaryError(const Twine &Msg,
|
||
|
|
object_error ECOverride)
|
||
|
|
: Msg(Msg.str()) {
|
||
|
|
setErrorCode(make_error_code(ECOverride));
|
||
|
|
}
|
||
|
|
|
||
|
|
void GenericBinaryError::log(raw_ostream &OS) const {
|
||
|
|
OS << Msg;
|
||
|
|
}
|
||
|
|
|
||
|
|
static ManagedStatic<_object_error_category> error_category;
|
||
|
|
|
||
|
|
const std::error_category &object::object_category() {
|
||
|
|
return *error_category;
|
||
|
|
}
|
||
|
|
|
||
|
|
llvm::Error llvm::object::isNotObjectErrorInvalidFileType(llvm::Error Err) {
|
||
|
|
return handleErrors(std::move(Err), [](std::unique_ptr<ECError> M) -> Error {
|
||
|
|
// Try to handle 'M'. If successful, return a success value from
|
||
|
|
// the handler.
|
||
|
|
if (M->convertToErrorCode() == object_error::invalid_file_type)
|
||
|
|
return Error::success();
|
||
|
|
|
||
|
|
// We failed to handle 'M' - return it from the handler.
|
||
|
|
// This value will be passed back from catchErrors and
|
||
|
|
// wind up in Err2, where it will be returned from this function.
|
||
|
|
return Error(std::move(M));
|
||
|
|
});
|
||
|
|
}
|