mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-19 03:05:15 +00:00
77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
//===-- tsan_trace.h --------------------------------------------*- C++ -*-===//
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of ThreadSanitizer (TSan), a race detector.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
#ifndef TSAN_TRACE_H
|
|
#define TSAN_TRACE_H
|
|
|
|
#include "tsan_defs.h"
|
|
#include "tsan_mutex.h"
|
|
#include "tsan_sync.h"
|
|
#include "tsan_mutexset.h"
|
|
|
|
namespace __tsan {
|
|
|
|
const int kTracePartSizeBits = 14;
|
|
const int kTracePartSize = 1 << kTracePartSizeBits;
|
|
const int kTraceParts = 4 * 1024 * 1024 / kTracePartSize;
|
|
const int kTraceSize = kTracePartSize * kTraceParts;
|
|
|
|
// Must fit into 3 bits.
|
|
enum EventType {
|
|
EventTypeMop,
|
|
EventTypeFuncEnter,
|
|
EventTypeFuncExit,
|
|
EventTypeLock,
|
|
EventTypeUnlock,
|
|
EventTypeRLock,
|
|
EventTypeRUnlock
|
|
};
|
|
|
|
// Represents a thread event (from most significant bit):
|
|
// u64 typ : 3; // EventType.
|
|
// u64 addr : 61; // Associated pc.
|
|
typedef u64 Event;
|
|
|
|
struct TraceHeader {
|
|
StackTrace stack0; // Start stack for the trace.
|
|
u64 epoch0; // Start epoch for the trace.
|
|
MutexSet mset0;
|
|
#ifndef TSAN_GO
|
|
uptr stack0buf[kTraceStackSize];
|
|
#endif
|
|
|
|
TraceHeader()
|
|
#ifndef TSAN_GO
|
|
: stack0(stack0buf, kTraceStackSize)
|
|
#else
|
|
: stack0()
|
|
#endif
|
|
, epoch0() {
|
|
}
|
|
};
|
|
|
|
struct Trace {
|
|
TraceHeader headers[kTraceParts];
|
|
Mutex mtx;
|
|
#ifndef TSAN_GO
|
|
// Must be last to catch overflow as paging fault.
|
|
// Go shadow stack is dynamically allocated.
|
|
uptr shadow_stack[kShadowStackSize];
|
|
#endif
|
|
|
|
Trace()
|
|
: mtx(MutexTypeTrace, StatMtxTrace) {
|
|
}
|
|
};
|
|
|
|
} // namespace __tsan
|
|
|
|
#endif // TSAN_TRACE_H
|