Makefile revision 1.110 
1#	$NetBSD: Makefile,v 1.110 2011/10/07 09:15:21 mrg 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+=	${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
42		-shared -nostartfiles -nodefaultlibs
43LDFLAGS+=	-Wl,-static
44LDFLAGS+=	-Wl,--warn-shared-textrel
45
46CFLAGS+=	-fvisibility=hidden
47
48# Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
49# is first.
50.if exists($M/Makefile.inc)
51.include "$M/Makefile.inc"
52.endif
53
54# Support compat ld.elf_so.
55.if defined(MLIBDIR)
56PROG=		ld.elf_so-${MLIBDIR}
57CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
58.else
59PROG=		ld.elf_so
60.endif
61
62CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
63
64SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
65		map_object.c load.c search.c headers.c paths.c expand.c \
66		tls.c symver.c
67
68.if ${USE_FORT} == "yes"
69.PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
70SRCS+=		stack_protector.c
71.endif
72
73.PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
74SRCS+=		exit.c
75
76errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
77	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
78	mv -f ${.TARGET}.tmp ${.TARGET}
79
80xprintf.c: errlist_concat.h
81
82CLEANFILES+=	errlist_concat.h
83
84BINDIR=		${SHLINKINSTALLDIR}
85
86CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
87CPPFLAGS+=	-I${.CURDIR} -I.
88CPPFLAGS+=	-DRTLD_LOADER
89CPPFLAGS+=	-D_RTLD_SOURCE
90CPPFLAGS+=	-DCOMBRELOC
91#CPPFLAGS+=	-DDEBUG
92#CPPFLAGS+=	-DRTLD_DEBUG
93#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
94#DBG=		-g
95DBG=		-O3 -fomit-frame-pointer
96
97.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "x86_64"
98DBG+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
99.endif
100
101
102.if ${SHLIBDIR} != ${LIBDIR}
103CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
104.endif
105
106# rtld.c and symbol.c use alloca, so disable SSP warnings.
107COPTS.rtld.c+=	-Wno-stack-protector
108COPTS.symbol.c+=-Wno-stack-protector
109
110LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
111.if ${MKPICLIB} != "no"
112LDADD+=		-lc_pic
113.if ${MKPICINSTALL} != "no"
114DPADD+=		${LIBC_PIC}
115.endif
116DPADD+=		${CLIBOBJ}/libc_pic.a
117.else
118LDADD+=		-lc
119DPADD+=		${CLIBOBJ}/libc.a
120.endif
121
122.if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
123# for $$divU, $$remU etc. (millicode)
124LDADD+=		-lgcc
125DPADD+=		${LIBGCC}
126.endif
127
128STRIPFLAG=
129
130.PATH: $M
131
132${PROG}: ${OBJS} ${DPADD}
133	${_MKMSG_LINK} ${PROG}
134	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
135
136.if ${SHLINKINSTALLDIR} != "/usr/libexec"
137SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
138.endif
139
140.include <bsd.prog.mk>
141.else
142
143MAN=		ld.elf_so.1
144
145.include <bsd.man.mk>
146.endif
147