Makefile revision 1.101 
1#	$NetBSD: Makefile,v 1.101 2010/12/16 22:52:32 joerg 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    ${MKPIC} != "no"
40
41LDFLAGS+=	-shared -symbolic -nostartfiles
42LDFLAGS+=	-Wl,-static
43CFLAGS+=	-fvisibility=hidden
44
45# Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
46# is first.
47.if exists($M/Makefile.inc)
48.include "$M/Makefile.inc"
49.endif
50
51# Support compat ld.elf_so.
52.if defined(MLIBDIR)
53PROG=		ld.elf_so-${MLIBDIR}
54CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
55.else
56PROG=		ld.elf_so
57.endif
58
59CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
60
61SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
62		map_object.c load.c search.c headers.c paths.c expand.c
63
64.if ${USE_FORT} == "yes"
65.PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
66SRCS+=		stack_protector.c
67.endif
68
69.PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
70SRCS+=		exit.c
71
72errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
73	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
74	mv -f ${.TARGET}.tmp ${.TARGET}
75
76xprintf.c: errlist_concat.h
77
78CLEANFILES+=	errlist_concat.h
79
80BINDIR=		${SHLINKINSTALLDIR}
81
82CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
83CPPFLAGS+=	-I${.CURDIR} -I.
84CPPFLAGS+=	-DRTLD_LOADER
85CPPFLAGS+=	-D_RTLD_SOURCE
86CPPFLAGS+=	-DCOMBRELOC
87#CPPFLAGS+=	-DDEBUG
88#CPPFLAGS+=	-DRTLD_DEBUG
89#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
90#DBG=		-g
91DBG=		-O3 -fomit-frame-pointer
92
93.if ${SHLIBDIR} != ${LIBDIR}
94CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
95.endif
96
97# rtld.c and symbol.c use alloca, so disable SSP warnings.
98COPTS.rtld.c+=	-Wno-stack-protector
99COPTS.symbol.c+=-Wno-stack-protector
100
101LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
102.if ${MKPICLIB} != "no"
103LDADD+=		-lc_pic
104.if ${MKPICINSTALL} != "no"
105DPADD+=		${LIBC_PIC}
106.endif
107DPADD+=		${CLIBOBJ}/libc_pic.a
108.else
109LDADD+=		-lc
110DPADD+=		${CLIBOBJ}/libc.a
111.endif
112
113STRIPFLAG=
114
115.PATH: $M
116
117${PROG}: ${OBJS} ${DPADD}
118	${_MKMSG_LINK} ${PROG}
119	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
120
121.if ${SHLINKINSTALLDIR} != "/usr/libexec"
122SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
123.endif
124
125.include <bsd.prog.mk>
126.else
127
128MAN=		ld.elf_so.1
129
130.include <bsd.man.mk>
131.endif
132