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//===- xray-fc-account.cpp: XRay Function Call Accounting Tool ------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Implementation of the helper tools dealing with XRay-generated function ids.
//
//===----------------------------------------------------------------------===//
#include "func-id-helper.h"
#include "llvm/Support/Path.h"
#include <sstream>
using namespace llvm;
using namespace xray;
std::string FuncIdConversionHelper::SymbolOrNumber(int32_t FuncId) const {
auto CacheIt = CachedNames.find(FuncId);
if (CacheIt != CachedNames.end())
return CacheIt->second;
std::ostringstream F;
auto It = FunctionAddresses.find(FuncId);
if (It == FunctionAddresses.end()) {
F << "#" << FuncId;
return F.str();
}
object::SectionedAddress ModuleAddress;
ModuleAddress.Address = It->second;
// TODO: set proper section index here.
// object::SectionedAddress::UndefSection works for only absolute addresses.
ModuleAddress.SectionIndex = object::SectionedAddress::UndefSection;
if (auto ResOrErr = Symbolizer.symbolizeCode(BinaryInstrMap, ModuleAddress)) {
auto &DI = *ResOrErr;
if (DI.FunctionName == DILineInfo::BadString)
F << "@(" << std::hex << It->second << ")";
else
F << DI.FunctionName;
} else
handleAllErrors(ResOrErr.takeError(), [&](const ErrorInfoBase &) {
F << "@(" << std::hex << It->second << ")";
});
auto S = F.str();
CachedNames[FuncId] = S;
return S;
}
std::string FuncIdConversionHelper::FileLineAndColumn(int32_t FuncId) const {
auto It = FunctionAddresses.find(FuncId);
if (It == FunctionAddresses.end())
return "(unknown)";
std::ostringstream F;
object::SectionedAddress ModuleAddress;
ModuleAddress.Address = It->second;
// TODO: set proper section index here.
// object::SectionedAddress::UndefSection works for only absolute addresses.
ModuleAddress.SectionIndex = object::SectionedAddress::UndefSection;
auto ResOrErr = Symbolizer.symbolizeCode(BinaryInstrMap, ModuleAddress);
if (!ResOrErr) {
consumeError(ResOrErr.takeError());
return "(unknown)";
}
auto &DI = *ResOrErr;
F << sys::path::filename(DI.FileName).str() << ":" << DI.Line << ":"
<< DI.Column;
return F.str();
}
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