From: Jeremie Courreges-Anglas <jca@wxcvbn.org>
Subject: devel/x86_64-elf
To: ports@openbsd.org
Cc: Klemens Nanni <kn@openbsd.org>
Date: Sun, 25 Jan 2026 09:50:22 +0100


Here's a new port to get a modern GNU toolchain for x86_64.  It
successfully compiles a lightly tweaked openbsd-wip/net/ipxe and a
revived sysutils/memtest86+.  The port is based off
devel/arm-none-eabi, with all the cruft removed.  Someone could add an
i386 FLAVOR it they care.  I used the same gcc and binutils version as
arm-none-eabi for no other reason than mere laziness.

The idea is that a dedicated GNU toolchain specialized for standalone
code should be more robust in the long run than fixing build/runtime
errors in niche software every time we update clang, lld, ports-gcc,
etc.  That would be ipxe and sysutils/firmware/vmm.

Tarball attached.  Thoughts?  ok?

kn, fwiw below is the diff I used to build openbsd-wip/net/ipxe.
I haven't sorted out everything in sysutils/vmm yet.

diff --git net/ipxe/Makefile net/ipxe/Makefile
index bbd5e51f8..c34a13448 100644
--- net/ipxe/Makefile
+++ net/ipxe/Makefile
@@ -50,16 +50,10 @@ FLAVOR ?=		# native build
 .if empty(FLAVOR)
 # FWIW, on amd64 'make IPXE_ARCH=i386' also built at one point.
 IPXE_ARCH =		${MACHINE_ARCH:amd64=x86_64}
-COMPILER =		ports-gcc
-COMPILER_LANGS =	c
-# XXX WIP ld.bfd with elf-{arm64,i386,x86_64} target support added to binutils
-BUILD_DEPENDS = 	devel/binutils>=2.45.1p4 \
-			devel/gas
-CROSS =			g
-MAKE_FLAGS =		CC=${CC} \
+BUILD_DEPENDS = 	devel/x86_64-elf/gcc
+CROSS =			x86_64-none-elf-
+MAKE_FLAGS =		\
 			SPG_TEST=false
-USE_LLD =		No
-MAKE_FLAGS +=		LD=${LD}
 .else
 IPXE_ARCH =		${FLAVOR:aarch64=arm64:arm=arm32}
 BUILD_DEPENDS = 	devel/arm-none-eabi/binutils,${FLAVOR} \
@@ -93,6 +87,7 @@ USE_GMAKE =		Yes
 MAKE_FLAGS +=		CROSS=${CROSS} \
 			HOST_CC=${CC} \
 			HOST_CFLAGS=${HOST_CFLAGS:Q} \
+			SPG_TEST=false \
 			V=1 \
 			VERSION=${VERSION:Q}
 
@@ -105,7 +100,8 @@ BUILD_DEPENDS +=	archivers/xz \
 			sysutils/mtools \
 			sysutils/truncate
 # lzma.h
-HOST_CFLAGS +=		-I/usr/local/include
+HOST_CFLAGS +=		-I${LOCALBASE}/include \
+			-L${LOCALBASE}/lib
 
 # util/genfsimg relies on mktemp(1).
 MAKE_ENV =		TMPDIR=${WRKDIR}

-- 
jca