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https://github.com/c64scene-ar/llvm-6502.git
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7e699dce03
Summary: Currently all load commands are parsed in MachOObjectFile constructor. If the next load command cannot be parsed, or if command size is too small, properly report it through the error code and fail to construct the object, instead of crashing the program. Test Plan: regression test suite Reviewers: rafael, filcab Subscribers: llvm-commits git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239080 91177308-0d34-0410-b5e6-96231b3b80d8
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
//===- Error.cpp - system_error extensions for Object -----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This defines a new error_category for the Object library.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/Error.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/ManagedStatic.h"
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using namespace llvm;
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using namespace object;
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namespace {
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class _object_error_category : public std::error_category {
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public:
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const char* name() const LLVM_NOEXCEPT override;
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std::string message(int ev) const override;
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};
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}
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const char *_object_error_category::name() const LLVM_NOEXCEPT {
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return "llvm.object";
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}
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std::string _object_error_category::message(int EV) const {
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object_error E = static_cast<object_error>(EV);
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switch (E) {
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case object_error::success: return "Success";
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case object_error::arch_not_found:
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return "No object file for requested architecture";
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case object_error::invalid_file_type:
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return "The file was not recognized as a valid object file";
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case object_error::parse_failed:
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return "Invalid data was encountered while parsing the file";
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case object_error::unexpected_eof:
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return "The end of the file was unexpectedly encountered";
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case object_error::bitcode_section_not_found:
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return "Bitcode section not found in object file";
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case object_error::macho_small_load_command:
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return "Mach-O load command with size < 8 bytes";
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}
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llvm_unreachable("An enumerator of object_error does not have a message "
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"defined.");
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}
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static ManagedStatic<_object_error_category> error_category;
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const std::error_category &object::object_category() {
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return *error_category;
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}
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