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aab1810006
Previously we set `isFuncEntry` flag to true when the funcName from DWARF is equal to the name in symbol table and we use this flag to ignore reporting callsite sample that's from an intra func branch. However, in HHVM, it appears that the symbol table name is inconsistent with the dwarf info func name, it's likely due to `OptimizeGlobalAliases`. This change is a workaround in llvm-profgen side to mark the only one range as the function entry and add warnings for the remaining inconsistence. This also fixed a missing `getCanonicalFnName` for symbol name which caused the mismatching as well. Reviewed By: hoy, wenlei Differential Revision: https://reviews.llvm.org/D113492
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
//===-- ErrorHandling.h - Error handler -------------------------*- 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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#ifndef LLVM_TOOLS_LLVM_PROFGEN_ERRORHANDLING_H
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#define LLVM_TOOLS_LLVM_PROFGEN_ERRORHANDLING_H
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#include "llvm/ADT/Twine.h"
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#include "llvm/Support/Errc.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/ErrorOr.h"
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#include "llvm/Support/WithColor.h"
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#include <system_error>
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using namespace llvm;
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[[noreturn]] inline void exitWithError(const Twine &Message,
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StringRef Whence = StringRef(),
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StringRef Hint = StringRef()) {
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WithColor::error(errs(), "llvm-profgen");
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if (!Whence.empty())
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errs() << Whence.str() << ": ";
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errs() << Message << "\n";
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if (!Hint.empty())
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WithColor::note() << Hint.str() << "\n";
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::exit(EXIT_FAILURE);
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}
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[[noreturn]] inline void exitWithError(std::error_code EC,
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StringRef Whence = StringRef()) {
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exitWithError(EC.message(), Whence);
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}
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[[noreturn]] inline void exitWithError(Error E, StringRef Whence) {
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exitWithError(errorToErrorCode(std::move(E)), Whence);
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}
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template <typename T, typename... Ts>
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T unwrapOrError(Expected<T> EO, Ts &&... Args) {
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if (EO)
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return std::move(*EO);
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exitWithError(EO.takeError(), std::forward<Ts>(Args)...);
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}
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inline void emitWarningSummary(uint64_t Num, uint64_t Total, StringRef Msg) {
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if (!Total || !Num)
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return;
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WithColor::warning() << format("%.2f", static_cast<double>(Num) * 100 / Total)
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<< "%(" << Num << "/" << Total << ") " << Msg << "\n";
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}
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#endif
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