Makefile revision 308966 
1# $FreeBSD: stable/10/libexec/rtld-elf/Makefile 308966 2016-11-22 09:47:22Z kib $
2
3# Use the following command to build local debug version of dynamic
4# linker:
5# make DEBUG_FLAGS=-g DEBUG=-DDEBUG WITHOUT_TESTS=yes all
6
7.include <bsd.own.mk>
8MK_SSP=		no
9
10PROG?=		ld-elf.so.1
11SRCS=		rtld_start.S \
12		reloc.c rtld.c rtld_lock.c rtld_printf.c map_object.c \
13		malloc.c xmalloc.c debug.c libmap.c
14MAN=		rtld.1
15CSTD?=		gnu99
16TOPSRCDIR=	${.CURDIR}/../..
17CFLAGS+=	-Wall -DFREEBSD_ELF -DIN_RTLD
18CFLAGS+=	-I${TOPSRCDIR}/lib/csu/common
19.if exists(${.CURDIR}/${MACHINE_ARCH})
20RTLD_ARCH=	${MACHINE_ARCH}
21.else
22RTLD_ARCH=	${MACHINE_CPUARCH}
23.endif
24CFLAGS+=	-I${.CURDIR}/${RTLD_ARCH} -I${.CURDIR}
25.if ${MACHINE_ARCH} == "powerpc64"
26CFLAGS+=	-mcall-aixdesc
27LDFLAGS+=	-nostdlib -e _rtld_start
28.else
29LDFLAGS+=	-nostdlib -e .rtld_start
30.endif
31WARNS?=		2
32INSTALLFLAGS=	-C -b
33PRECIOUSPROG=
34BINDIR=		/libexec
35SYMLINKS=	${BINDIR}/${PROG} ${LIBEXECDIR}/${PROG}
36MLINKS=		rtld.1 ld-elf.so.1.1 \
37		rtld.1 ld.so.1
38
39.if ${MACHINE_CPUARCH} == "sparc64"
40CFLAGS+=	-fPIC
41.else
42CFLAGS+=	-fpic
43.endif
44CFLAGS+=	-DPIC $(DEBUG)
45.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
46CFLAGS+=	-fvisibility=hidden
47.endif
48LDFLAGS+=	-shared -Wl,-Bsymbolic
49DPADD=		${LIBC_PIC}
50LDADD=		-lc_pic
51
52.if ${MACHINE_CPUARCH} == "arm" && ${MK_ARM_EABI} != "no"
53# Some of the required math functions (div & mod) are implemented in libgcc
54# on ARM. The library also needs to be placed first to be correctly linked.
55# As some of the functions are used before we have shared libraries.
56DPADD+=		${LIBGCC}
57LDADD+=		-lgcc
58.endif
59
60
61
62.if ${MK_SYMVER} == "yes"
63LIBCDIR=	${TOPSRCDIR}/lib/libc
64VERSION_DEF=	${LIBCDIR}/Versions.def
65SYMBOL_MAPS=	${.CURDIR}/Symbol.map
66VERSION_MAP=	Version.map
67LDFLAGS+=	-Wl,--version-script=${VERSION_MAP}
68
69${PROG}:	${VERSION_MAP}
70
71.if exists(${.CURDIR}/${RTLD_ARCH}/Symbol.map)
72SYMBOL_MAPS+=	${.CURDIR}/${RTLD_ARCH}/Symbol.map
73.endif
74.endif
75
76.sinclude "${.CURDIR}/${RTLD_ARCH}/Makefile.inc"
77
78# Since moving rtld-elf to /libexec, we need to create a symlink.
79# Fixup the existing binary that's there so we can symlink over it.
80beforeinstall:
81.if exists(${DESTDIR}/usr/libexec/${PROG})
82	-chflags -h noschg ${DESTDIR}/usr/libexec/${PROG}
83.endif
84
85.PATH: ${.CURDIR}/${RTLD_ARCH}
86
87.include <bsd.symver.mk>
88.include <bsd.prog.mk>
89