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Apparently sampled call stacks may be empty.

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This commit is contained in:
Bartosz Taudul 2020-03-28 16:09:44 +01:00
parent d43461584a
commit 9b8eb69886
1 changed files with 11 additions and 8 deletions
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19
client/TracySysTrace.cpp
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@ -144,14 +144,17 @@ void WINAPI EventRecordCallback( PEVENT_RECORD record )
if( sw->stackProcess == s_pid && ( sw->stack[0] & 0x8000000000000000 ) == 0 )
{
const uint64_t sz = ( record->UserDataLength - 16 ) / 8;
auto trace = (uint64_t*)tracy_malloc( ( 1 + sz ) * sizeof( uint64_t ) );
memcpy( trace, &sz, sizeof( uint64_t ) );
memcpy( trace+1, sw->stack, sizeof( uint64_t ) * sz );
TracyLfqPrepare( QueueType::CallstackSample );
MemWrite( &item->callstackSample.time, sw->eventTimeStamp );
MemWrite( &item->callstackSample.thread, (uint64_t)sw->stackThread );
MemWrite( &item->callstackSample.ptr, (uint64_t)trace );
TracyLfqCommit;
if( sz > 0 )
{
auto trace = (uint64_t*)tracy_malloc( ( 1 + sz ) * sizeof( uint64_t ) );
memcpy( trace, &sz, sizeof( uint64_t ) );
memcpy( trace+1, sw->stack, sizeof( uint64_t ) * sz );
TracyLfqPrepare( QueueType::CallstackSample );
MemWrite( &item->callstackSample.time, sw->eventTimeStamp );
MemWrite( &item->callstackSample.thread, (uint64_t)sw->stackThread );
MemWrite( &item->callstackSample.ptr, (uint64_t)trace );
TracyLfqCommit;
}
}
}
break;