gecko-dev/tools/profiler/LulDwarfSummariser.h
Julian Seward 9bd60ea2d4 Bug 938157 - Lightweight CFI/EXIDX unwinding library for SPS. r=n.nethercote, nfroyd, bgirard.
--HG--
extra : rebase_source : bd427749667ddd6641eff414879c3706a5cb5f5e
2013-12-18 13:02:34 +01:00

53 lines
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef LulDwarfSummariser_h
#define LulDwarfSummariser_h
#include "LulMainInt.h"
namespace lul {
class Summariser
{
public:
Summariser(SecMap* aSecMap, uintptr_t aTextBias, void(*aLog)(const char*));
void Entry(uintptr_t aAddress, uintptr_t aLength);
void End();
void Rule(uintptr_t aAddress,
int aNewReg, int aOldReg, intptr_t aOffset, bool aDeref);
private:
// The SecMap in which we park the finished summaries (RuleSets).
SecMap* mSecMap;
// Running state for the current summary (RuleSet) under construction.
RuleSet mCurrRules;
// The start of the address range to which the RuleSet under
// construction applies.
uintptr_t mCurrAddr;
// The highest address, plus one, for which the RuleSet under
// construction could possibly apply. If there are no further
// incoming events then mCurrRules will eventually be emitted
// as-is, for the range mCurrAddr.. mMax1Addr - 1, if that is
// nonempty.
uintptr_t mMax1Addr;
// The bias value (to add to the SVMAs, to get AVMAs) to be used
// when adding entries into mSecMap.
uintptr_t mTextBias;
// A logging sink, for debugging.
void (*mLog)(const char* aFmt);
};
} // namespace lul
#endif // LulDwarfSummariser_h