724b58f766
We hit this in Chromium builds where the PDB file was just under 4GB, but the stream directory was actually too large to be correctly represented. llvm-pdbutil would error about this in llvm::msf::validateSuperBlock, but lld should not write such PDB files in the first place. Differential revision: https://reviews.llvm.org/D144385
60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
//===- MSFError.cpp - Error extensions for MSF files ------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/MSF/MSFError.h"
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#include "llvm/Support/ErrorHandling.h"
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#include <string>
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using namespace llvm;
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using namespace llvm::msf;
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namespace {
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// FIXME: This class is only here to support the transition to llvm::Error. It
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// will be removed once this transition is complete. Clients should prefer to
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// deal with the Error value directly, rather than converting to error_code.
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class MSFErrorCategory : public std::error_category {
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public:
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const char *name() const noexcept override { return "llvm.msf"; }
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std::string message(int Condition) const override {
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switch (static_cast<msf_error_code>(Condition)) {
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case msf_error_code::unspecified:
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return "An unknown error has occurred.";
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case msf_error_code::insufficient_buffer:
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return "The buffer is not large enough to read the requested number of "
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"bytes.";
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case msf_error_code::size_overflow_4096:
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return "Output data is larger than 4 GiB.";
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case msf_error_code::size_overflow_8192:
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return "Output data is larger than 8 GiB.";
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case msf_error_code::size_overflow_16384:
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return "Output data is larger than 16 GiB.";
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case msf_error_code::size_overflow_32768:
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return "Output data is larger than 32 GiB.";
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case msf_error_code::not_writable:
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return "The specified stream is not writable.";
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case msf_error_code::no_stream:
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return "The specified stream does not exist.";
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case msf_error_code::invalid_format:
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return "The data is in an unexpected format.";
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case msf_error_code::block_in_use:
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return "The block is already in use.";
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case msf_error_code::stream_directory_overflow:
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return "PDB stream directory too large.";
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}
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llvm_unreachable("Unrecognized msf_error_code");
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}
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};
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} // namespace
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const std::error_category &llvm::msf::MSFErrCategory() {
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static MSFErrorCategory MSFCategory;
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return MSFCategory;
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}
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char MSFError::ID;
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