diff --git a/sys/boot/i386/boot0/Makefile b/sys/boot/i386/boot0/Makefile
index b22cf4d494dd..dea34028ef06 100644
--- a/sys/boot/i386/boot0/Makefile
+++ b/sys/boot/i386/boot0/Makefile
@@ -1,11 +1,10 @@
 # $FreeBSD$
 
-PROG=	${BOOT}.out
+PROG=	${BOOT}
 INTERNALPROG=
 FILES=	${BOOT}
 NOMAN=
 SRCS=	${BOOT}.s
-CLEANFILES= ${BOOT}
 
 BOOT?=	boot0
 
@@ -34,9 +33,6 @@ AFLAGS+=--defsym FLAGS=${BOOT_BOOT0_FLAGS} \
 	--defsym TICKS=${BOOT_BOOT0_TICKS} \
 	--defsym COMSPEED=${BOOT_BOOT0_COMCONSOLE_SPEED}
 
-LDFLAGS=-N -e start -Ttext ${BOOT_BOOT0_ORG}
-
-${BOOT}: ${BOOT}.out
-	objcopy -S -O binary ${BOOT}.out ${.TARGET}
+LDFLAGS=-N -e start -Ttext ${BOOT_BOOT0_ORG} -Wl,-S -Wl,--oformat -Wl,binary
 
 .include <bsd.prog.mk>
diff --git a/sys/boot/i386/btx/btx/Makefile b/sys/boot/i386/btx/btx/Makefile
index 510716fa5ee5..25374baffbbb 100644
--- a/sys/boot/i386/btx/btx/Makefile
+++ b/sys/boot/i386/btx/btx/Makefile
@@ -1,6 +1,6 @@
 # $FreeBSD$
 
-PROG=	btx.out
+PROG=	btx
 INTERNALPROG=
 NOMAN=
 SRCS=	btx.S
@@ -29,11 +29,6 @@ CFLAGS+=-DBTX_SERIAL -DSIOPRT=${BOOT_COMCONSOLE_PORT} \
 
 ORG=	0x9000
 
-all: btx
-
-LDFLAGS=-N -e start -Ttext ${ORG}
-
-btx: btx.out
-	objcopy -S -O binary btx.out ${.TARGET}
+LDFLAGS=-N -e start -Ttext ${ORG} -Wl,-S -Wl,--oformat -Wl,binary
 
 .include <bsd.prog.mk>
diff --git a/sys/boot/i386/btx/btxldr/Makefile b/sys/boot/i386/btx/btxldr/Makefile
index 358e3963e4f6..8658acadf950 100644
--- a/sys/boot/i386/btx/btxldr/Makefile
+++ b/sys/boot/i386/btx/btxldr/Makefile
@@ -1,6 +1,6 @@
 # $FreeBSD$
 
-PROG=	btxldr.out
+PROG=	btxldr
 INTERNALPROG=
 NOMAN=
 SRCS=	btxldr.S
@@ -12,11 +12,6 @@ CFLAGS+=-DLOADER_ADDRESS=${LOADER_ADDRESS}
 CFLAGS+=-DBTXLDR_VERBOSE
 .endif
 
-all: btxldr
-
-LDFLAGS=-N -e start -Ttext ${LOADER_ADDRESS}
-
-btxldr: btxldr.out
-	objcopy -S -O binary btxldr.out ${.TARGET}
+LDFLAGS=-N -e start -Ttext ${LOADER_ADDRESS} -Wl,-S -Wl,--oformat -Wl,binary
 
 .include <bsd.prog.mk>
diff --git a/sys/boot/i386/cdboot/Makefile b/sys/boot/i386/cdboot/Makefile
index 08302e4a1272..a3a0c03dc61a 100644
--- a/sys/boot/i386/cdboot/Makefile
+++ b/sys/boot/i386/cdboot/Makefile
@@ -1,6 +1,6 @@
 # $FreeBSD$
 
-PROG=	${BOOT}.out
+PROG=	${BOOT}
 INTERNALPROG=
 FILES=	${BOOT}
 NOMAN=
@@ -10,9 +10,6 @@ CLEANFILES= ${BOOT}
 BOOT=	cdboot
 ORG=	0x7c00
 
-${BOOT}: ${BOOT}.out
-	objcopy -S -O binary ${BOOT}.out ${.TARGET}
-
-LDFLAGS=-N -e start -Ttext ${ORG}
+LDFLAGS=-N -e start -Ttext ${ORG} -Wl,-S -Wl,--oformat -Wl,binary
 
 .include <bsd.prog.mk>
diff --git a/sys/boot/i386/mbr/Makefile b/sys/boot/i386/mbr/Makefile
index 240529733992..b52aef05bcea 100644
--- a/sys/boot/i386/mbr/Makefile
+++ b/sys/boot/i386/mbr/Makefile
@@ -1,6 +1,6 @@
 # $FreeBSD$
 
-PROG=	${BOOT}.out
+PROG=	${BOOT}
 INTERNALPROG=
 FILES=	${BOOT}
 NOMAN=
@@ -10,9 +10,6 @@ CLEANFILES= ${BOOT}
 BOOT=	mbr
 ORG=	0x600
 
-${BOOT}: ${BOOT}.out
-	objcopy -S -O binary ${BOOT}.out ${.TARGET}
-
-LDFLAGS=-N -e start -Ttext ${ORG}
+LDFLAGS=-N -e start -Ttext ${ORG} -Wl,-S -Wl,--oformat -Wl,binary
 
 .include <bsd.prog.mk>
diff --git a/sys/boot/i386/pxeldr/Makefile b/sys/boot/i386/pxeldr/Makefile
index f628e6dcaba3..2a8b57d73582 100644
--- a/sys/boot/i386/pxeldr/Makefile
+++ b/sys/boot/i386/pxeldr/Makefile
@@ -3,7 +3,7 @@
 # Pick up ../Makefile.inc early.
 .include <bsd.init.mk>
 
-PROG=	${LDR}.out
+PROG=	${LDR}
 INTERNALPROG=
 FILES=	${BOOT}
 MAN=	${BOOT}.8
@@ -34,10 +34,7 @@ ${BOOT}: ${LDR} ${LOADER}
 
 CLEANFILES+= ${LDR}
 
-${LDR}: ${LDR}.out
-	objcopy -S -O binary ${LDR}.out ${.TARGET}
-
-LDFLAGS+= -N -e start -Ttext ${ORG}
+LDFLAGS+= -N -e start -Ttext ${ORG} -Wl,-S -Wl,--oformat -Wl,binary
 
 CLEANFILES+= ${LOADER}