Makefile revision 1.98 
1#	$NetBSD: Makefile,v 1.98 2010/10/29 15:08:17 christos Exp $
2#
3# NOTE: when changing ld.so, ensure that ldd still compiles.
4#
5
6WARNS?=4
7
8# This needs to be before bsd.init.mk
9.if defined(BSD_MK_COMPAT_FILE)
10.include <${BSD_MK_COMPAT_FILE}>
11.endif
12
13# We are not building this with PIE
14PIE_CFLAGS=
15PIE_LDFLAGS=
16.include <bsd.init.mk>			# for MKPIC definition
17.include <bsd.shlib.mk>			# for SHLINKINSTALLDIR definition
18
19.if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
20    exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
21ARCHSUBDIR=	${LDELFSO_MACHINE_CPU}
22.else
23ARCHSUBDIR=	${MACHINE_CPU}
24.endif
25M=		${.CURDIR}/arch/${ARCHSUBDIR}
26
27.if ((${MACHINE_ARCH} == "alpha") ||					\
28     (${MACHINE_CPU} == "arm") ||					\
29     (${MACHINE_ARCH} == "hppa") ||					\
30     (${MACHINE_ARCH} == "i386") ||					\
31     (${MACHINE_ARCH} == "m68k") ||					\
32     (${MACHINE_CPU} == "mips") ||					\
33     (${MACHINE_ARCH} == "powerpc") ||					\
34     (${MACHINE_CPU} == "sh3") ||					\
35     (${MACHINE_ARCH} == "sparc") ||					\
36     (${MACHINE_ARCH} == "sparc64") ||					\
37     (${MACHINE_ARCH} == "x86_64") ||					\
38     (${MACHINE_ARCH} == "vax")) &&					\
39    ${MKPIC} != "no"
40
41LDFLAGS+=	-shared -symbolic -nostartfiles
42LDFLAGS+=	-Wl,-static
43
44# Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
45# is first.
46.if exists($M/Makefile.inc)
47.include "$M/Makefile.inc"
48.endif
49
50# Support compat ld.elf_so.
51.if defined(MLIBDIR)
52PROG=		ld.elf_so-${MLIBDIR}
53CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
54.else
55PROG=		ld.elf_so
56.endif
57
58CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
59
60SRCS+=		rtld.c reloc.c symbol.c xenv.c xmalloc.c xprintf.c debug.c \
61		map_object.c load.c search.c headers.c paths.c expand.c
62
63.if ${USE_FORT} == "yes"
64.PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
65SRCS+=		stack_protector.c
66.endif
67
68.PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
69SRCS+=		exit.c
70
71BINDIR=		${SHLINKINSTALLDIR}
72
73CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
74CPPFLAGS+=	-I${.CURDIR}
75CPPFLAGS+=	-DRTLD_LOADER
76CPPFLAGS+=	-D_RTLD_SOURCE
77CPPFLAGS+=	-DCOMBRELOC
78#CPPFLAGS+=	-DDEBUG
79#CPPFLAGS+=	-DRTLD_DEBUG
80#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
81#DBG=		-g
82DBG=		-O3 -fomit-frame-pointer
83
84.if ${SHLIBDIR} != ${LIBDIR}
85CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
86.endif
87
88# rtld.c and symbol.c use alloca, so disable SSP warnings.
89COPTS.rtld.c+=	-Wno-stack-protector
90COPTS.symbol.c+=-Wno-stack-protector
91
92LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
93.if ${MKPICLIB} != "no"
94LDADD+=		-lc_pic
95.if ${MKPICINSTALL} != "no"
96DPADD+=		${LIBC_PIC}
97.endif
98DPADD+=		${CLIBOBJ}/libc_pic.a
99.else
100LDADD+=		-lc
101DPADD+=		${CLIBOBJ}/libc.a
102.endif
103
104STRIPFLAG=
105
106.PATH: $M
107
108${PROG}: ${OBJS} ${DPADD}
109	${_MKMSG_LINK} ${PROG}
110	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
111
112.if ${SHLINKINSTALLDIR} != "/usr/libexec"
113SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
114.endif
115
116.include <bsd.prog.mk>
117.else
118
119MAN=		ld.elf_so.1
120
121.include <bsd.man.mk>
122.endif
123