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Send sampled call stacks.
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@ -77,6 +77,14 @@ struct ThreadTrace
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uint32_t subProcessTag;
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};
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struct StackWalkEvent
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{
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uint64_t eventTimeStamp;
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uint32_t stackProcess;
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uint32_t stackThread;
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uint64_t stack[192];
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};
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void WINAPI EventRecordCallback( PEVENT_RECORD record )
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{
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#ifdef TRACY_ON_DEMAND
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@ -125,6 +133,24 @@ void WINAPI EventRecordCallback( PEVENT_RECORD record )
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TracyLfqCommit;
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}
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break;
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case 0xdef2fe46: // StackWalk Guid
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if( hdr.EventDescriptor.Opcode == 32 )
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{
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const auto sw = (const StackWalkEvent*)record->UserData;
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if( sw->stackProcess == s_pid )
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{
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const uint64_t sz = ( record->UserDataLength - 16 ) / 8;
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auto trace = (uint64_t*)tracy_malloc( ( 1 + sz ) * sizeof( uint64_t ) );
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memcpy( trace, &sz, sizeof( uint64_t ) );
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memcpy( trace+1, sw->stack, sizeof( uint64_t ) * sz );
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TracyLfqPrepare( QueueType::CallstackSample );
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MemWrite( &item->callstackSample.time, sw->eventTimeStamp );
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MemWrite( &item->callstackSample.thread, (uint64_t)sw->stackThread );
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MemWrite( &item->callstackSample.ptr, (uint64_t)trace );
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TracyLfqCommit;
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}
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}
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break;
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default:
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break;
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}
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@ -9,7 +9,7 @@ namespace tracy
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constexpr unsigned Lz4CompressBound( unsigned isize ) { return isize + ( isize / 255 ) + 16; }
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enum : uint32_t { ProtocolVersion = 25 };
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enum : uint32_t { ProtocolVersion = 26 };
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enum : uint32_t { BroadcastVersion = 0 };
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using lz4sz_t = uint32_t;
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@ -20,6 +20,7 @@ enum class QueueType : uint8_t
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CallstackMemory,
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Callstack,
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CallstackAlloc,
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CallstackSample,
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FrameImage,
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ZoneBegin,
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ZoneBeginCallstack,
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@ -290,6 +291,13 @@ struct QueueCallstackAlloc
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uint64_t nativePtr;
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};
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struct QueueCallstackSample
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{
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int64_t time;
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uint64_t thread;
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uint64_t ptr;
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};
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struct QueueCallstackFrameSize
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{
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uint64_t ptr;
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@ -406,6 +414,7 @@ struct QueueItem
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QueueCallstackMemory callstackMemory;
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QueueCallstack callstack;
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QueueCallstackAlloc callstackAlloc;
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QueueCallstackSample callstackSample;
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QueueCallstackFrameSize callstackFrameSize;
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QueueCallstackFrame callstackFrame;
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QueueCrashReport crashReport;
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@ -436,6 +445,7 @@ static constexpr size_t QueueDataSize[] = {
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sizeof( QueueHeader ) + sizeof( QueueCallstackMemory ),
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sizeof( QueueHeader ) + sizeof( QueueCallstack ),
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sizeof( QueueHeader ) + sizeof( QueueCallstackAlloc ),
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sizeof( QueueHeader ) + sizeof( QueueCallstackSample ),
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sizeof( QueueHeader ) + sizeof( QueueFrameImage ),
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sizeof( QueueHeader ) + sizeof( QueueZoneBegin ),
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sizeof( QueueHeader ) + sizeof( QueueZoneBegin ), // callstack
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