Makefile revision 1.103 
1#	$NetBSD: Makefile,v 1.103 2011/03/09 23:10:07 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    ${MKPIC} != "no"
40
41LDFLAGS+=	-shared -symbolic -nostartfiles
42LDFLAGS+=	-Wl,-static
43LDFLAGS+=	-Wl,--warn-shared-textrel
44
45CFLAGS+=	-fvisibility=hidden
46
47# Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
48# is first.
49.if exists($M/Makefile.inc)
50.include "$M/Makefile.inc"
51.endif
52
53# Support compat ld.elf_so.
54.if defined(MLIBDIR)
55PROG=		ld.elf_so-${MLIBDIR}
56CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
57.else
58PROG=		ld.elf_so
59.endif
60
61CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
62
63SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
64		map_object.c load.c search.c headers.c paths.c expand.c \
65		tls.c
66
67.if ${USE_FORT} == "yes"
68.PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
69SRCS+=		stack_protector.c
70.endif
71
72.PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
73SRCS+=		exit.c
74
75errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
76	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
77	mv -f ${.TARGET}.tmp ${.TARGET}
78
79xprintf.c: errlist_concat.h
80
81CLEANFILES+=	errlist_concat.h
82
83BINDIR=		${SHLINKINSTALLDIR}
84
85CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
86CPPFLAGS+=	-I${.CURDIR} -I.
87CPPFLAGS+=	-DRTLD_LOADER
88CPPFLAGS+=	-D_RTLD_SOURCE
89CPPFLAGS+=	-DCOMBRELOC
90#CPPFLAGS+=	-DDEBUG
91#CPPFLAGS+=	-DRTLD_DEBUG
92#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
93#DBG=		-g
94DBG=		-O3 -fomit-frame-pointer
95
96.if ${SHLIBDIR} != ${LIBDIR}
97CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
98.endif
99
100# rtld.c and symbol.c use alloca, so disable SSP warnings.
101COPTS.rtld.c+=	-Wno-stack-protector
102COPTS.symbol.c+=-Wno-stack-protector
103
104LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
105.if ${MKPICLIB} != "no"
106LDADD+=		-lc_pic
107.if ${MKPICINSTALL} != "no"
108DPADD+=		${LIBC_PIC}
109.endif
110DPADD+=		${CLIBOBJ}/libc_pic.a
111.else
112LDADD+=		-lc
113DPADD+=		${CLIBOBJ}/libc.a
114.endif
115
116STRIPFLAG=
117
118.PATH: $M
119
120${PROG}: ${OBJS} ${DPADD}
121	${_MKMSG_LINK} ${PROG}
122	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
123
124.if ${SHLINKINSTALLDIR} != "/usr/libexec"
125SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
126.endif
127
128.include <bsd.prog.mk>
129.else
130
131MAN=		ld.elf_so.1
132
133.include <bsd.man.mk>
134.endif
135