diff -Naur qtbase-everywhere-src-6.6.2/src/corelib/thread/qthread.h qtbase-everywhere-src-6.6.2_new/src/corelib/thread/qthread.h
--- qtbase-everywhere-src-6.6.2/src/corelib/thread/qthread.h	2024-02-08 16:01:05.000000000 -0000
+++ qtbase-everywhere-src-6.6.2_new/src/corelib/thread/qthread.h	2024-02-22 03:30:33.943940073 -0000
@@ -165,7 +165,12 @@
     __asm__("movq %%gs:0, %0" : "=r" (tid) : : );
 #elif defined(Q_PROCESSOR_X86_64) && ((defined(Q_OS_LINUX) && defined(__GLIBC__)) || defined(Q_OS_FREEBSD))
     // x86_64 Linux, BSD uses FS
+# if defined(__ILP32__)
+    __asm__("mov %%fs:%c1, %0" : "=r" (tid) : "i" (2 * sizeof(void*)) : );
+# else
     __asm__("movq %%fs:%c1, %0" : "=r" (tid) : "i" (2 * sizeof(void*)) : );
+# endif
+
 #elif defined(Q_PROCESSOR_X86_64) && defined(Q_OS_WIN)
     // See https://en.wikipedia.org/wiki/Win32_Thread_Information_Block
     // First get the pointer to the TIB