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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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 gc_GCTraceFormat_h
#define gc_GCTraceFormat_h
/*
* Each trace is stored as a 64-bit word with the following format:
*
* 56 48 0
* +----------------+----------------+-----------------------------------------+
* | Event type | Optional extra | Optional payload |
* +----------------+----------------+-----------------------------------------+
*/
enum GCTraceEvent {
// Events
TraceEventInit,
TraceEventThingSize,
TraceEventNurseryAlloc,
TraceEventTenuredAlloc,
TraceEventClassInfo,
TraceEventTypeInfo,
TraceEventTypeNewScript,
TraceEventCreateObject,
TraceEventMinorGCStart,
TraceEventPromoteToTenured,
TraceEventMinorGCEnd,
TraceEventMajorGCStart,
TraceEventTenuredFinalize,
TraceEventMajorGCEnd,
TraceDataAddress, // following TraceEventPromote
TraceDataInt, // following TraceEventClassInfo
TraceDataString, // following TraceEventClassInfo
GCTraceEventCount
};
const unsigned TraceFormatVersion = 1;
const unsigned TracePayloadBits = 48;
const unsigned TraceExtraShift = 48;
const unsigned TraceExtraBits = 8;
const unsigned TraceEventShift = 56;
const unsigned TraceEventBits = 8;
const unsigned AllocKinds = 22;
const unsigned LastObjectAllocKind = 11;
#endif
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