Filename in callstack frame is not a persistent pointer.

client/TracyCallstack.cpp

@@ -78,15 +78,21 @@ CallstackEntry DecodeCallstackPtr( uint64_t ptr )
     line.SizeOfStruct = sizeof( IMAGEHLP_LINE64 );
     if( SymGetLineFromAddr64( proc, ptr, &displacement, &line ) == 0 )
     {
-        ret.file = "[unknown]";
+        line.FileName = "[unknown]";
         ret.line = 0;
     }
     else
     {
-        ret.file = line.FileName;
         ret.line = line.LineNumber;
     }
 
+    const auto fsz = strlen( line.FileName );
+    auto file = (char*)tracy_malloc( fsz + 1 );
+    memcpy( file, line.FileName, fsz );
+    file[fsz] = '\0';
+
+    ret.file = file;
+
     return ret;
 }
 

client/TracyProfiler.cpp

@@ -565,6 +565,7 @@ void Profiler::SendCallstackFrame( uint64_t ptr )
     auto frame = DecodeCallstackPtr( ptr );
 
     SendString( uint64_t( frame.name ), frame.name, QueueType::CustomStringData );
+    SendString( uint64_t( frame.file ), frame.file, QueueType::CustomStringData );
 
     QueueItem item;
     MemWrite( &item.hdr.type, QueueType::CallstackFrame );
@@ -577,6 +578,7 @@ void Profiler::SendCallstackFrame( uint64_t ptr )
     AppendData( &item, QueueDataSize[(int)QueueType::CallstackFrame] );
 
     tracy_free( (void*)frame.name );
+    tracy_free( (void*)frame.file );
 #endif
 }