llvm-project/llvm/lib/Transforms/IPO/EmbedBitcodePass.cpp
Nikita Popov b492ec5899
[ErrorHandling] Add reportFatalInternalError + reportFatalUsageError (NFC) (#138251)
This implements the result of the discussion at:

https://discourse.llvm.org/t/rfc-report-fatal-error-and-the-default-value-of-gencrashdialog/73587

There are two different use cases for report_fatal_error, so replace it
with two functions reportFatalInternalError() and
reportFatalUsageError(). The former indicates a bug in LLVM and
generates a crash dialog. The latter does not. The names have been
suggested by rnk and people seemed to like them.

This replaces a lot of the usages that passed an explicit value for
GenCrashDiag. I did not bulk replace remaining report_fatal_error usage
-- they probably require case by case review for which function to use.
2025-05-05 12:10:03 +02:00

46 lines
1.6 KiB
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//===- EmbedBitcodePass.cpp - Pass that embeds the bitcode into a global---===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "llvm/Transforms/IPO/EmbedBitcodePass.h"
#include "llvm/Bitcode/BitcodeWriter.h"
#include "llvm/Bitcode/BitcodeWriterPass.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MemoryBufferRef.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/TargetParser/Triple.h"
#include "llvm/Transforms/IPO/ThinLTOBitcodeWriter.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
#include <string>
using namespace llvm;
PreservedAnalyses EmbedBitcodePass::run(Module &M, ModuleAnalysisManager &AM) {
if (M.getGlobalVariable("llvm.embedded.module", /*AllowInternal=*/true))
reportFatalUsageError("Can only embed the module once");
Triple T(M.getTargetTriple());
if (T.getObjectFormat() != Triple::ELF)
reportFatalUsageError(
"EmbedBitcode pass currently only supports ELF object format");
std::string Data;
raw_string_ostream OS(Data);
if (IsThinLTO)
ThinLTOBitcodeWriterPass(OS, /*ThinLinkOS=*/nullptr).run(M, AM);
else
BitcodeWriterPass(OS, /*ShouldPreserveUseListOrder=*/false, EmitLTOSummary)
.run(M, AM);
embedBufferInModule(M, MemoryBufferRef(Data, "ModuleData"), ".llvm.lto");
return PreservedAnalyses::all();
}