xref: /freebsd/libexec/rtld-elf/Makefile (revision e17f5b1d) 
1# $FreeBSD$
2
3# Use the following command to build local debug version of dynamic
4# linker:
5# make DEBUG_FLAGS=-g WITHOUT_TESTS=yes all
6
7RTLD_ELF_DIR:=	${.PARSEDIR}
8
9.include <src.opts.mk>
10PACKAGE=	clibs
11MK_PIE=		no # Always position independent using local rules
12MK_SSP=		no
13
14CONFS=		libmap.conf
15PROG?=		ld-elf.so.1
16.if (${PROG:M*ld-elf32*} != "")
17TAGS+=		lib32
18.endif
19SRCS= \
20	crtbrand.S \
21	rtld_start.S \
22	reloc.c \
23	rtld.c \
24	rtld_lock.c \
25	rtld_malloc.c \
26	rtld_printf.c \
27	map_object.c \
28	xmalloc.c \
29	debug.c \
30	libmap.c
31MAN?=		rtld.1
32CSTD?=		gnu99
33ACFLAGS+=	-DLOCORE
34CFLAGS+=	-Wall -DFREEBSD_ELF -DIN_RTLD -ffreestanding
35CFLAGS+=	-I${SRCTOP}/lib/csu/common
36.if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH})
37RTLD_ARCH=	${MACHINE_ARCH}
38.else
39RTLD_ARCH=	${MACHINE_CPUARCH}
40.endif
41CFLAGS+=	-I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR}
42
43NO_WCAST_ALIGN=	yes
44WARNS?=		6
45INSTALLFLAGS=	-C -b
46PRECIOUSPROG=
47BINDIR=		/libexec
48SYMLINKS=	../..${BINDIR}/${PROG} ${LIBEXECDIR}/${PROG}
49MLINKS?=	rtld.1 ld-elf.so.1.1 \
50		rtld.1 ld.so.1
51
52CFLAGS+=	-fpic -DPIC $(DEBUG)
53
54LDFLAGS+=	-shared -Wl,-Bsymbolic -Wl,-z,defs -nostdlib -e ${RTLD_ENTRY}
55# Pull in the dependencies that we use from libc
56.include "rtld-libc/Makefile.inc"
57.if ${MK_TOOLCHAIN} == "no"
58LDFLAGS+=	-L${LIBCDIR}
59.endif
60
61VERSION_DEF=	${LIBCSRCDIR}/Versions.def
62SYMBOL_MAPS=	${RTLD_ELF_DIR}/Symbol.map
63VERSION_MAP=	Version.map
64LDFLAGS+=	-Wl,--version-script=${VERSION_MAP}
65
66.if exists(${RTLD_ELF_DIR}/${RTLD_ARCH}/Symbol.map)
67SYMBOL_MAPS+=	${RTLD_ELF_DIR}/${RTLD_ARCH}/Symbol.map
68.endif
69
70.sinclude "${RTLD_ELF_DIR}/${RTLD_ARCH}/Makefile.inc"
71RTLD_ENTRY?=	.rtld_start
72
73# Since moving rtld-elf to /libexec, we need to create a symlink.
74# Fixup the existing binary that's there so we can symlink over it.
75beforeinstall:
76.if exists(${DESTDIR}/usr/libexec/${PROG}) && ${MK_STAGING} == "no"
77	-chflags -h noschg ${DESTDIR}/usr/libexec/${PROG}
78.endif
79
80.PATH: ${RTLD_ELF_DIR}/${RTLD_ARCH} ${SRCTOP}/lib/csu/common
81
82.if ${.CURDIR} == ${RTLD_ELF_DIR}
83HAS_TESTS=
84SUBDIR.${MK_TESTS}+= tests
85.endif
86
87.include <bsd.prog.mk>
88${PROG_FULL}:	${VERSION_MAP}
89.include <bsd.symver.mk>
90
91.if ${COMPILER_TYPE} == "gcc"
92# GCC warns about redeclarations even though they have __exported
93# and are therefore not identical to the ones from the system headers.
94CFLAGS+=	-Wno-redundant-decls
95.endif
96