Index: head/share/mk/src.opts.mk
===================================================================
--- head/share/mk/src.opts.mk
+++ head/share/mk/src.opts.mk
@@ -282,7 +282,10 @@
 .if ${__T:Mmips*} || ${__T:Mpowerpc*} || ${__T:Msparc64} || ${__T:Mriscv*}
 BROKEN_OPTIONS+=EFI
 .endif
-
+.if ${__T:Mmips64*}
+# profiling won't work on MIPS64 because there is only assembly for o32
+BROKEN_OPTIONS+=PROFILE
+.endif
 .if ${__T} == "aarch64" || ${__T} == "amd64" || ${__T} == "i386" || \
     ${__T} == "powerpc64" || ${__T} == "sparc64"
 __DEFAULT_YES_OPTIONS+=CXGBETOOL