devel/libffi has been broken on mips64 since base clang was upgraded to version 11. The integrated assembler is now more strict about section flags and throws an error if .eh_frame section is not read-only.
The following patch lets devel/libffi build finish. OK? Index: Makefile =================================================================== RCS file: ports/devel/libffi/Makefile,v retrieving revision 1.42 diff -u -p -r1.42 Makefile --- Makefile 10 Feb 2020 18:06:34 -0000 1.42 +++ Makefile 10 Jun 2021 15:30:55 -0000 @@ -3,6 +3,7 @@ COMMENT= Foreign Function Interface DISTNAME= libffi-3.3 +REVISION= 0 SHARED_LIBS += ffi 1.2 # .6.4 CATEGORIES= devel Index: patches/patch-src_mips_n32_S =================================================================== RCS file: patches/patch-src_mips_n32_S diff -N patches/patch-src_mips_n32_S --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ patches/patch-src_mips_n32_S 10 Jun 2021 15:31:06 -0000 @@ -0,0 +1,21 @@ +$OpenBSD$ + +Use EH_FRAME_FLAGS to get section flags that clang's integrated assembler +expects. This fixes the following build error on mips64: + +../src/mips/n32.S:585:9: error: changed section flags for .eh_frame, expected: 0x2 + .section .eh_frame,"aw",@progbits + ^ + +Index: src/mips/n32.S +--- src/mips/n32.S.orig ++++ src/mips/n32.S +@@ -582,7 +582,7 @@ cls_epilogue: + .end ffi_closure_N32 + + #ifdef __GNUC__ +- .section .eh_frame,"aw",@progbits ++ .section .eh_frame,EH_FRAME_FLAGS,@progbits + .Lframe1: + .4byte .LECIE1-.LSCIE1 # length + .LSCIE1:
