Makefile revision 63615 
1# $FreeBSD: head/libexec/rtld-elf/Makefile 63615 2000-07-20 08:00:02Z green $
2
3MAINTAINER=	jdp
4PROG=		ld-elf.so.1
5SRCS=		rtld_start.S rtld.c lockdflt.c map_object.c malloc.c \
6		xmalloc.c debug.c reloc.c
7MAN1=		rtld.1
8CFLAGS+=	-Wall -DFREEBSD_ELF -I${.CURDIR}/${MACHINE_ARCH} -I${.CURDIR}
9LDFLAGS+=	-nostdlib -e .rtld_start
10INSTALLFLAGS+=	-fschg -C
11MLINKS=		rtld.1 ld-elf.so.1.1
12
13.if exists(${.CURDIR}/${MACHINE_ARCH}/Makefile.inc)
14.include "${.CURDIR}/${MACHINE_ARCH}/Makefile.inc"
15.endif
16
17# If LDSCRIPT is defined, we build the dynamic linker as an
18# executable.  Otherwise we build it as a shared object.  We ignore
19# LDSCRIPT if the running kernel is too old to support it.
20.if defined(LDSCRIPT)
21KERN_OSRELDATE!=	/sbin/sysctl -n kern.osreldate 2>/dev/null || echo 0
22.if ${KERN_OSRELDATE} >= 400001
23LDSO_IS_EXECUTABLE=	yes
24.endif
25.endif
26
27.ifdef LDSO_IS_EXECUTABLE
28OBJS+=		dyn_hack.so
29LDFLAGS+=	-Wl,-T,${LDSCRIPT} -Wl,-E -Wl,-Bstatic
30DPADD=		${LIBC}
31LDADD=		-lc
32.else
33CFLAGS+=	-fpic -DPIC
34LDFLAGS+=	-shared -Wl,-Bsymbolic
35DPADD=		${LIBC_PIC}
36LDADD=		-lc_pic
37.endif
38
39dyn_hack.so:
40	${CC} -shared -nostdlib -o dyn_hack.so -x c /dev/null
41
42.PATH: ${.CURDIR}/${MACHINE_ARCH}
43
44.include <bsd.prog.mk>
45
46# Keep the previous version of the dynamic linker for recovery
47# purposes.  This must come after the include of <bsd.prog.mk> so that
48# BINDIR is set for the exists(...) constructs.
49beforeinstall:
50.if exists(${DESTDIR}${BINDIR}/${PROG})
51	-chflags noschg ${DESTDIR}${BINDIR}/${PROG}
52.if exists(${DESTDIR}${BINDIR}/${PROG}.old)
53	-chflags noschg ${DESTDIR}${BINDIR}/${PROG}.old
54.endif
55	${INSTALL} -C -p ${DESTDIR}${BINDIR}/${PROG} \
56	    ${DESTDIR}${BINDIR}/${PROG}.old
57.endif
58