diff --git a/sys/conf/Makefile.alpha b/sys/conf/Makefile.alpha
index 1929b4d7e239..df48d84770fb 100644
--- a/sys/conf/Makefile.alpha
+++ b/sys/conf/Makefile.alpha
@@ -90,9 +90,6 @@ __reml.S: $S/$M/$M/divrem.m4
 	@(echo "define(NAME,\`__reml')define(OP,\`rem')define(S,\`true')"; \
 	 echo "define(WORDSIZE,32)"; cat ${.ALLSRC}) | m4 > ${.TARGET}
 
-locore.o: $S/$M/$M/locore.s assym.s
-	${NORMAL_S}
-
 %RULES
 
 .include "$S/conf/kern.post.mk"
diff --git a/sys/conf/Makefile.amd64 b/sys/conf/Makefile.amd64
index 59b57ef1ab78..77bbc37ca45b 100644
--- a/sys/conf/Makefile.amd64
+++ b/sys/conf/Makefile.amd64
@@ -45,9 +45,6 @@ MKMODULESENV+= MACHINE=x86_64
 
 %CLEAN
 
-locore.o: $S/$M/$M/locore.s assym.s
-	${NORMAL_S}
-
 %RULES
 
 .include "$S/conf/kern.post.mk"
diff --git a/sys/conf/Makefile.i386 b/sys/conf/Makefile.i386
index c6ff5db6df52..62e871c3c478 100644
--- a/sys/conf/Makefile.i386
+++ b/sys/conf/Makefile.i386
@@ -44,9 +44,6 @@ MKMODULESENV+= MACHINE=i386
 
 %CLEAN
 
-locore.o: $S/$M/$M/locore.s assym.s
-	${NORMAL_S}
-
 %RULES
 
 .include "$S/conf/kern.post.mk"
diff --git a/sys/conf/Makefile.ia64 b/sys/conf/Makefile.ia64
index 5e9b216ef611..8aee4f51c8c4 100644
--- a/sys/conf/Makefile.ia64
+++ b/sys/conf/Makefile.ia64
@@ -48,9 +48,6 @@ ASM_CFLAGS= -x assembler-with-cpp -Wa,-x -DLOCORE ${CFLAGS}
 
 %CLEAN
 
-locore.o: $S/$M/$M/locore.s assym.s
-	${NORMAL_S}
-
 %RULES
 
 .include "$S/conf/kern.post.mk"
diff --git a/sys/conf/Makefile.pc98 b/sys/conf/Makefile.pc98
index 440d85b0b3a9..0e5d57ac0aee 100644
--- a/sys/conf/Makefile.pc98
+++ b/sys/conf/Makefile.pc98
@@ -45,9 +45,6 @@ MKMODULESENV+=	MACHINE=pc98
 
 %CLEAN
 
-locore.o: $S/$M/$M/locore.s assym.s
-	${NORMAL_S}
-
 %RULES
 
 .include "$S/conf/kern.post.mk"
diff --git a/sys/conf/Makefile.powerpc b/sys/conf/Makefile.powerpc
index 8e22e0496123..ef481082552c 100644
--- a/sys/conf/Makefile.powerpc
+++ b/sys/conf/Makefile.powerpc
@@ -35,8 +35,6 @@ S=	../../..
 
 COPTS+= -msoft-float
 
-SYSTEM_SFILES= $S/$M/$M/locore.S
-
 %BEFORE_DEPEND
 
 %OBJS
diff --git a/sys/conf/Makefile.sparc64 b/sys/conf/Makefile.sparc64
index 719e9ce46f4b..8666315dbfcf 100644
--- a/sys/conf/Makefile.sparc64
+++ b/sys/conf/Makefile.sparc64
@@ -30,9 +30,7 @@ S=	../../..
 .endif
 .include "$S/conf/kern.pre.mk"
 
-SYSTEM_SFILES= $S/$M/$M/locore.S $S/$M/$M/exception.S $S/$M/$M/interrupt.S
-SYSTEM_OBJS= locore.o exception.o interrupt.o vnode_if.o ${OBJS} hints.o \
-	     env.o config.o hack.So majors.o
+MDOBJS=	exception.o interrupt.o
 
 %BEFORE_DEPEND
 
@@ -46,15 +44,6 @@ SYSTEM_OBJS= locore.o exception.o interrupt.o vnode_if.o ${OBJS} hints.o \
 
 %CLEAN
 
-exception.o: $S/$M/$M/exception.S assym.s
-	${NORMAL_S}
-
-interrupt.o: $S/$M/$M/interrupt.S assym.s
-	${NORMAL_S}
-
-locore.o: $S/$M/$M/locore.S assym.s
-	${NORMAL_S}
-
 %RULES
 
 .include "$S/conf/kern.post.mk"
diff --git a/sys/conf/files.alpha b/sys/conf/files.alpha
index 9f38b0d6db95..4f5203c032d3 100644
--- a/sys/conf/files.alpha
+++ b/sys/conf/files.alpha
@@ -69,9 +69,7 @@ alpha/alpha/fp_emulate.c	standard
 alpha/alpha/ieee_float.c	standard
 alpha/alpha/in_cksum.c		optional	inet
 alpha/alpha/interrupt.c		standard
-# locore.s needs to be handled in Makefile to put it first.  Otherwise it's
-# now normal.
-# alpha/alpha/locore.s		standard
+alpha/alpha/locore.s		standard	no-obj
 alpha/alpha/machdep.c		standard
 alpha/alpha/mem.c		standard
 alpha/alpha/pmap.c		standard
diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64
index cc2584632666..2845f1bf680f 100644
--- a/sys/conf/files.amd64
+++ b/sys/conf/files.amd64
@@ -45,9 +45,7 @@ x86_64/x86_64/i686_mem.c	standard
 x86_64/x86_64/identcpu.c	standard
 x86_64/x86_64/initcpu.c		standard
 x86_64/x86_64/k6_mem.c		standard
-# locore.s needs to be handled in Makefile to put it first.  Otherwise it's
-# now normal.
-# x86_64/x86_64/locore.s	standard
+x86_64/x86_64/locore.s		standard	no-obj
 x86_64/x86_64/machdep.c		standard
 x86_64/x86_64/mem.c		standard
 x86_64/x86_64/nexus.c		standard
diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index 0b4459b90702..a89c4aa7cb74 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -211,9 +211,7 @@ i386/i386/in_cksum.c		optional	inet
 i386/i386/initcpu.c		standard
 i386/i386/k6_mem.c		standard
 i386/i386/legacy.c		standard
-# locore.s needs to be handled in Makefile to put it first.  Otherwise it's
-# now normal.
-# i386/i386/locore.s		standard
+i386/i386/locore.s		standard	no-obj
 i386/i386/machdep.c		standard
 i386/i386/math_emulate.c	optional	math_emulate
 i386/i386/mem.c			standard
diff --git a/sys/conf/files.ia64 b/sys/conf/files.ia64
index dd9dd5a22cbf..7a7fb26a277b 100644
--- a/sys/conf/files.ia64
+++ b/sys/conf/files.ia64
@@ -41,9 +41,7 @@ ia64/ia64/elf_machdep.c		standard
 ia64/ia64/exception.s		standard
 ia64/ia64/in_cksum.c		optional	inet
 ia64/ia64/interrupt.c		standard
-# locore.s needs to be handled in Makefile to put it first.  Otherwise it's
-# now normal.
-# ia64/ia64/locore.s		standard
+ia64/ia64/locore.s		standard	no-obj
 ia64/ia64/machdep.c		standard
 ia64/ia64/mca.c			standard
 ia64/ia64/mem.c			standard
diff --git a/sys/conf/files.pc98 b/sys/conf/files.pc98
index 900967ad82e9..de002484790e 100644
--- a/sys/conf/files.pc98
+++ b/sys/conf/files.pc98
@@ -177,9 +177,7 @@ i386/i386/in_cksum.c		optional	inet
 i386/i386/initcpu.c		standard
 i386/i386/k6_mem.c		standard
 i386/i386/legacy.c		standard
-# locore.s needs to be handled in Makefile to put it first.  Otherwise it's
-# now normal.
-# i386/i386/locore.s		standard
+i386/i386/locore.s		standard	no-obj
 i386/i386/math_emulate.c	optional	math_emulate
 i386/i386/mem.c			standard
 i386/i386/mp_clock.c		optional	smp
diff --git a/sys/conf/files.powerpc b/sys/conf/files.powerpc
index b6b6bd05c427..e5131d44653d 100644
--- a/sys/conf/files.powerpc
+++ b/sys/conf/files.powerpc
@@ -25,6 +25,7 @@ powerpc/powerpc/fuswintr.c	standard
 powerpc/powerpc/in_cksum.c	optional	inet
 powerpc/powerpc/interrupt.c	standard
 powerpc/powerpc/intr_machdep.c	standard
+powerpc/powerpc/locore.S	standard	no-obj
 powerpc/powerpc/machdep.c	standard
 powerpc/powerpc/nexus.c		standard
 powerpc/powerpc/ofwmagic.S	standard
diff --git a/sys/conf/files.sparc64 b/sys/conf/files.sparc64
index 8b16895812f0..8f8ff7480e44 100644
--- a/sys/conf/files.sparc64
+++ b/sys/conf/files.sparc64
@@ -45,19 +45,17 @@ sparc64/sparc64/db_trace.c	optional	ddb
 sparc64/sparc64/db_hwwatch.c	optional	ddb
 sparc64/sparc64/dump_machdep.c	standard
 sparc64/sparc64/elf_machdep.c	standard
-# locore.S and exception.S need to be handled in the Makefile to put them
-# first.  Otherwise they're normal.
-# sparc64/sparc64/locore.S	standard
-# sparc64/sparc64/exception.S	standard
-# sparc64/sparc64/interrupt.S	standard
+sparc64/sparc64/exception.S	standard	no-obj
 sparc64/sparc64/eeprom.c	optional	eeprom
 sparc64/sparc64/eeprom_ebus.c	optional	eeprom ebus
 sparc64/sparc64/eeprom_fhc.c	optional	eeprom fhc
 sparc64/sparc64/eeprom_sbus.c	optional	eeprom sbus
 sparc64/sparc64/identcpu.c	standard
 sparc64/sparc64/in_cksum.c	optional	inet
+sparc64/sparc64/interrupt.S	standard	no-obj
 sparc64/sparc64/intr_machdep.c	standard
 sparc64/sparc64/iommu.c		standard
+sparc64/sparc64/locore.S	standard	no-obj
 sparc64/sparc64/machdep.c	standard
 sparc64/sparc64/mem.c		standard
 sparc64/sparc64/mp_exception.S	optional	smp
diff --git a/sys/conf/kern.post.mk b/sys/conf/kern.post.mk
index f1e2ceb16950..c7f212b27494 100644
--- a/sys/conf/kern.post.mk
+++ b/sys/conf/kern.post.mk
@@ -116,12 +116,12 @@ GEN_M_CFILES=	${MFILES:T:S/.m$/.c/}
 # pass it to mkdep.
 _kernel-depend: assym.s vnode_if.h miidevs.h ${BEFORE_DEPEND} \
 	    ${CFILES} ${SYSTEM_CFILES} ${GEN_CFILES} ${GEN_M_CFILES} \
-	    ${SFILES} ${SYSTEM_SFILES} ${MFILES:T:S/.m$/.h/}
+	    ${SFILES} ${MFILES:T:S/.m$/.h/}
 	if [ -f .olddep ]; then mv .olddep .depend; fi
 	rm -f .newdep
 	${MAKE} -V CFILES -V SYSTEM_CFILES -V GEN_CFILES -V GEN_M_CFILES | \
 	    MKDEP_CPP="${CC} -E" CC="${CC}" xargs mkdep -a -f .newdep ${CFLAGS}
-	${MAKE} -V SFILES -V SYSTEM_SFILES | \
+	${MAKE} -V SFILES | \
 	    MKDEP_CPP="${CC} -E" xargs mkdep -a -f .newdep ${ASM_CFLAGS}
 	rm -f .depend
 	mv .newdep .depend
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index 63987d69a1ec..cde1afb49698 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -63,11 +63,11 @@ NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 	  ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 
 GEN_CFILES= $S/$M/$M/genassym.c
-SYSTEM_CFILES= vnode_if.c hints.c env.c config.c
-SYSTEM_SFILES= $S/$M/$M/locore.s
+SYSTEM_CFILES= config.c env.c hints.c majors.c vnode_if.c
 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
-SYSTEM_OBJS= locore.o vnode_if.o ${OBJS} hints.o env.o config.o hack.So
-SYSTEM_OBJS+= majors.o
+SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
+SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
+SYSTEM_OBJS+= hack.So
 SYSTEM_LD= @${LD} ${FMT} -Bdynamic -T $S/conf/ldscript.$M \
 	-warn-common -export-dynamic -dynamic-linker /red/herring \
 	-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o