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Send sampled call stacks.

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This commit is contained in:
Bartosz Taudul
2020-02-22 13:42:09 +01:00
parent f186540c4f
commit 9e9c7db5b1
3 changed files with 37 additions and 1 deletions
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client/TracySysTrace.cpp
+26
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@@ -77,6 +77,14 @@ struct ThreadTrace
uint32_t subProcessTag;
};
struct StackWalkEvent
{
uint64_t eventTimeStamp;
uint32_t stackProcess;
uint32_t stackThread;
uint64_t stack[192];
};
void WINAPI EventRecordCallback( PEVENT_RECORD record )
{
#ifdef TRACY_ON_DEMAND
@@ -125,6 +133,24 @@ void WINAPI EventRecordCallback( PEVENT_RECORD record )
TracyLfqCommit;
}
break;
case 0xdef2fe46: // StackWalk Guid
if( hdr.EventDescriptor.Opcode == 32 )
{
const auto sw = (const StackWalkEvent*)record->UserData;
if( sw->stackProcess == s_pid )
{
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;
}
}
break;
default:
break;
}