xref: /freebsd/libexec/rtld-elf/Makefile (revision 7cc42f6d) 
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
32ACFLAGS+=	-DLOCORE
33CFLAGS+=	-Wall -DFREEBSD_ELF -DIN_RTLD -ffreestanding
34CFLAGS+=	-I${SRCTOP}/lib/csu/common
35.if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH:S/powerpc64le/powerpc64/})
36RTLD_ARCH=	${MACHINE_ARCH:S/powerpc64le/powerpc64/}
37.else
38RTLD_ARCH=	${MACHINE_CPUARCH}
39.endif
40CFLAGS+=	-I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR}
41
42NO_WCAST_ALIGN=	yes
43INSTALLFLAGS=	-C -b
44PRECIOUSPROG=
45BINDIR=		/libexec
46SYMLINKS=	../..${BINDIR}/${PROG} ${LIBEXECDIR}/${PROG}
47MLINKS?=	rtld.1 ld-elf.so.1.1 \
48		rtld.1 ld.so.1
49
50CFLAGS+=	-fpic -DPIC $(DEBUG)
51
52LDFLAGS+=	-shared -Wl,-Bsymbolic -Wl,-z,defs -nostdlib -e ${RTLD_ENTRY}
53# Pull in the dependencies that we use from libc
54.include "rtld-libc/Makefile.inc"
55.if ${MK_TOOLCHAIN} == "no"
56LDFLAGS+=	-L${LIBCDIR}
57.endif
58
59VERSION_DEF=	${LIBCSRCDIR}/Versions.def
60SYMBOL_MAPS=	${RTLD_ELF_DIR}/Symbol.map
61VERSION_MAP=	Version.map
62LDFLAGS+=	-Wl,--version-script=${VERSION_MAP}
63
64.if exists(${RTLD_ELF_DIR}/${RTLD_ARCH}/Symbol.map)
65SYMBOL_MAPS+=	${RTLD_ELF_DIR}/${RTLD_ARCH}/Symbol.map
66.endif
67
68.sinclude "${RTLD_ELF_DIR}/${RTLD_ARCH}/Makefile.inc"
69RTLD_ENTRY?=	.rtld_start
70
71# Since moving rtld-elf to /libexec, we need to create a symlink.
72# Fixup the existing binary that's there so we can symlink over it.
73beforeinstall:
74.if exists(${DESTDIR}/usr/libexec/${PROG}) && ${MK_STAGING} == "no"
75	-chflags -h noschg ${DESTDIR}/usr/libexec/${PROG}
76.endif
77
78.PATH: ${RTLD_ELF_DIR}/${RTLD_ARCH} ${SRCTOP}/lib/csu/common
79
80.if ${.CURDIR} == ${RTLD_ELF_DIR}
81HAS_TESTS=
82SUBDIR.${MK_TESTS}+= tests
83.endif
84
85.include <bsd.prog.mk>
86${PROG_FULL}:	${VERSION_MAP}
87.include <bsd.symver.mk>
88
89.if ${COMPILER_TYPE} == "gcc"
90# GCC warns about redeclarations even though they have __exported
91# and are therefore not identical to the ones from the system headers.
92CFLAGS+=	-Wno-redundant-decls
93.endif
94