diff --git a/share/mk/bsd.lib.mk b/share/mk/bsd.lib.mk
index 41cd55673473..741c9cb2b618 100644
--- a/share/mk/bsd.lib.mk
+++ b/share/mk/bsd.lib.mk
@@ -35,6 +35,10 @@ NO_WERROR=
 
 .if defined(DEBUG_FLAGS)
 CFLAGS+= ${DEBUG_FLAGS}
+
+.if !defined(NO_CTF) && (${DEBUG_FLAGS:M-g} != "")
+CTFFLAGS+= -g
+.endif
 .endif
 
 .if !defined(DEBUG_FLAGS)
@@ -64,9 +68,15 @@ PO_FLAG=-pg
 
 .c.po:
 	${CC} ${PO_FLAG} ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .c.So:
 	${CC} ${PICFLAG} -DPIC ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .cc.po .C.po .cpp.po .cxx.po:
 	${CXX} ${PO_FLAG} ${CXXFLAGS} -c ${.IMPSRC} -o ${.TARGET}
@@ -76,31 +86,58 @@ PO_FLAG=-pg
 
 .f.po:
 	${FC} -pg ${FFLAGS} -o ${.TARGET} -c ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .f.So:
 	${FC} ${PICFLAG} -DPIC ${FFLAGS} -o ${.TARGET} -c ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .m.po:
 	${OBJC} ${OBJCFLAGS} -pg -c ${.IMPSRC} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .m.So:
 	${OBJC} ${PICFLAG} -DPIC ${OBJCFLAGS} -c ${.IMPSRC} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .s.po .s.So:
 	${AS} ${AFLAGS} -o ${.TARGET} ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .asm.po:
 	${CC} -x assembler-with-cpp -DPROF ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .asm.So:
 	${CC} -x assembler-with-cpp ${PICFLAG} -DPIC ${CFLAGS} \
 	    -c ${.IMPSRC} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .S.po:
 	${CC} -DPROF ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .S.So:
 	${CC} ${PICFLAG} -DPIC ${CFLAGS} -c ${.IMPSRC} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 all: objwarn
 
@@ -171,6 +208,9 @@ ${SHLIB_NAME}: ${SOBJS}
 	    -o ${.TARGET} -Wl,-soname,${SONAME} \
 	    `NM='${NM}' lorder ${SOBJS} | tsort -q` ${LDADD}
 .endif
+.if defined(CTFMERGE)
+	${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SOBJS}
+.endif
 .endif
 
 .if defined(INSTALL_PIC_ARCHIVE) && defined(LIB) && !empty(LIB) && ${MK_TOOLCHAIN} != "no"
diff --git a/share/mk/bsd.libnames.mk b/share/mk/bsd.libnames.mk
index f98cbfe0e41b..1a30c59bf1c4 100644
--- a/share/mk/bsd.libnames.mk
+++ b/share/mk/bsd.libnames.mk
@@ -33,12 +33,15 @@ LIBCOM_ERR?=	${DESTDIR}${LIBDIR}/libcom_err.a
 LIBCOMPAT?=	${DESTDIR}${LIBDIR}/libcompat.a
 LIBCRYPT?=	${DESTDIR}${LIBDIR}/libcrypt.a
 LIBCRYPTO?=	${DESTDIR}${LIBDIR}/libcrypto.a
+LIBCTF?=	${DESTDIR}${LIBDIR}/libctf.a
 LIBCURSES?=	${DESTDIR}${LIBDIR}/libcurses.a
 LIBDEVINFO?=	${DESTDIR}${LIBDIR}/libdevinfo.a
 LIBDEVSTAT?=	${DESTDIR}${LIBDIR}/libdevstat.a
 LIBDIALOG?=	${DESTDIR}${LIBDIR}/libdialog.a
 LIBDISK?=	${DESTDIR}${LIBDIR}/libdisk.a
 LIBDNS?=	${DESTDIR}${LIBDIR}/libdns.a
+LIBDTRACE?=	${DESTDIR}${LIBDIR}/libdtrace.a
+LIBDWARF?=	${DESTDIR}${LIBDIR}/libdwarf.a
 LIBEDIT?=	${DESTDIR}${LIBDIR}/libedit.a
 LIBELF?=	${DESTDIR}${LIBDIR}/libelf.a
 LIBFETCH?=	${DESTDIR}${LIBDIR}/libfetch.a
@@ -124,6 +127,7 @@ MINUSLPAM+=	-lypclnt
 LIBPANEL?=	${DESTDIR}${LIBDIR}/libpanel.a
 LIBPCAP?=	${DESTDIR}${LIBDIR}/libpcap.a
 LIBPMC?=	${DESTDIR}${LIBDIR}/libpmc.a
+LIBPROC?=	${DESTDIR}${LIBDIR}/libproc.a
 LIBPTHREAD?=	${DESTDIR}${LIBDIR}/libpthread.a
 LIBRADIUS?=	${DESTDIR}${LIBDIR}/libradius.a
 LIBREADLINE?=	${DESTDIR}${LIBDIR}/libreadline.a
diff --git a/share/mk/bsd.prog.mk b/share/mk/bsd.prog.mk
index b9fee3287d62..c8f2f723c834 100644
--- a/share/mk/bsd.prog.mk
+++ b/share/mk/bsd.prog.mk
@@ -17,6 +17,10 @@ NO_WERROR=
 
 .if defined(DEBUG_FLAGS)
 CFLAGS+=${DEBUG_FLAGS}
+
+.if !defined(NO_CTF) && (${DEBUG_FLAGS:M-g} != "")
+CTFFLAGS+= -g
+.endif
 .endif
 
 .if defined(CRUNCH_CFLAGS)
@@ -56,6 +60,9 @@ ${PROG}: ${OBJS}
 .else
 	${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${OBJS} ${LDADD}
 .endif
+.if defined(CTFMERGE)
+	${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
+.endif
 
 .else	# !defined(SRCS)
 
@@ -79,6 +86,9 @@ ${PROG}: ${OBJS}
 .else
 	${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${OBJS} ${LDADD}
 .endif
+.if defined(CTFMERGE)
+	${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
+.endif
 .endif
 
 .endif
diff --git a/share/mk/sys.mk b/share/mk/sys.mk
index b4a5963ce284..c469a0354cec 100644
--- a/share/mk/sys.mk
+++ b/share/mk/sys.mk
@@ -45,6 +45,25 @@ CFLAGS		+=	-fno-strict-aliasing
 .endif
 .endif
 
+# Turn CTF conversion off by default for now. This default could be
+# changed later if DTrace becomes popular.
+.if !defined(WITH_CTF)
+NO_CTF		=	1
+.endif
+
+# C Type Format data is required for DTrace
+CTFFLAGS	?=	-L VERSION
+
+.if !defined(NO_CTF)
+CTFCONVERT	?=	ctfconvert
+CTFMERGE	?=	ctfmerge
+.if defined(CFLAGS) && (${CFLAGS:M-g} != "")
+CTFFLAGS	+=	-g
+.else
+CFLAGS		+=	-g
+.endif
+.endif
+
 CXX		?=	c++
 CXXFLAGS	?=	${CFLAGS:N-std=*:N-Wnested-externs:N-W*-prototypes:N-Wno-pointer-sign}
 
@@ -123,9 +142,15 @@ YFLAGS		?=	-d
 # SINGLE SUFFIX RULES
 .c:
 	${CC} ${CFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .f:
 	${FC} ${FFLAGS} ${LDFLAGS} -o ${.TARGET} ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .sh:
 	cp ${.IMPSRC} ${.TARGET}
@@ -135,21 +160,33 @@ YFLAGS		?=	-d
 
 .c.o:
 	${CC} ${CFLAGS} -c ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .f.o:
 	${FC} ${FFLAGS} -c ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .y.o:
 	${YACC} ${YFLAGS} ${.IMPSRC}
 	${CC} ${CFLAGS} -c y.tab.c
 	rm -f y.tab.c
 	mv y.tab.o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .l.o:
 	${LEX} ${LFLAGS} ${.IMPSRC}
 	${CC} ${CFLAGS} -c lex.yy.c
 	rm -f lex.yy.c
 	mv lex.yy.o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .y.c:
 	${YACC} ${YFLAGS} ${.IMPSRC}
@@ -187,9 +224,15 @@ YFLAGS		?=	-d
 
 .c:
 	${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .c.o:
 	${CC} ${CFLAGS} -c ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .cc .cpp .cxx .C:
 	${CXX} ${CXXFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
@@ -199,9 +242,15 @@ YFLAGS		?=	-d
 
 .m.o:
 	${OBJC} ${OBJCFLAGS} -c ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .p.o:
 	${PC} ${PFLAGS} -c ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .e .r .F .f:
 	${FC} ${RFLAGS} ${EFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} \
@@ -212,23 +261,38 @@ YFLAGS		?=	-d
 
 .S.o:
 	${CC} ${CFLAGS} -c ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .asm.o:
 	${CC} -x assembler-with-cpp ${CFLAGS} -c ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .s.o:
 	${AS} ${AFLAGS} -o ${.TARGET} ${.IMPSRC}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 # XXX not -j safe
 .y.o:
 	${YACC} ${YFLAGS} ${.IMPSRC}
 	${CC} ${CFLAGS} -c y.tab.c -o ${.TARGET}
 	rm -f y.tab.c
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .l.o:
 	${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
 	${CC} ${CFLAGS} -c ${.PREFIX}.tmp.c -o ${.TARGET}
 	rm -f ${.PREFIX}.tmp.c
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 # XXX not -j safe
 .y.c:
@@ -240,22 +304,34 @@ YFLAGS		?=	-d
 
 .s.out .c.out .o.out:
 	${CC} ${CFLAGS} ${LDFLAGS} ${.IMPSRC} ${LDLIBS} -o ${.TARGET}
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .f.out .F.out .r.out .e.out:
 	${FC} ${EFLAGS} ${RFLAGS} ${FFLAGS} ${LDFLAGS} ${.IMPSRC} \
 	    ${LDLIBS} -o ${.TARGET}
 	rm -f ${.PREFIX}.o
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 # XXX not -j safe
 .y.out:
 	${YACC} ${YFLAGS} ${.IMPSRC}
 	${CC} ${CFLAGS} ${LDFLAGS} y.tab.c ${LDLIBS} -ly -o ${.TARGET}
 	rm -f y.tab.c
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 .l.out:
 	${LEX} -t ${LFLAGS} ${.IMPSRC} > ${.PREFIX}.tmp.c
 	${CC} ${CFLAGS} ${LDFLAGS} ${.PREFIX}.tmp.c ${LDLIBS} -ll -o ${.TARGET}
 	rm -f ${.PREFIX}.tmp.c
+.if defined(CTFCONVERT)
+	${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
+.endif
 
 # FreeBSD build pollution.  Hide it in the non-POSIX part of the ifdef.
 __MAKE_CONF?=/etc/make.conf