Makefile revision 1.116 
1#	$NetBSD: Makefile,v 1.116 2013/04/24 22:37:20 matt 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
46COPTS+=		-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 diagassert.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${.CURDIR} -I.
88CPPFLAGS+=	-DRTLD_LOADER
89CPPFLAGS+=	-D_RTLD_SOURCE
90CPPFLAGS+=	-DCOMBRELOC
91#CPPFLAGS+=	-DDEBUG
92#CPPFLAGS+=	-DRTLD_DEBUG
93#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
94.if !empty(MACHINE_ARCH:Mearm*)
95CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
96.endif
97#DBG=		-g
98COPTS=		-O3 -fomit-frame-pointer
99
100.if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "x86_64"
101COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
102.endif
103
104
105.if ${SHLIBDIR} != ${LIBDIR}
106CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
107.endif
108
109# rtld.c and symbol.c use alloca, so disable SSP warnings.
110COPTS.rtld.c+=	-Wno-stack-protector
111COPTS.symbol.c+=-Wno-stack-protector
112
113LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
114.if ${MKPICLIB} != "no"
115LDADD+=		-lc_pic
116.if ${MKPICINSTALL} != "no"
117DPADD+=		${LIBC_PIC}
118.endif
119DPADD+=		${CLIBOBJ}/libc_pic.a
120.else
121LDADD+=		-lc
122DPADD+=		${CLIBOBJ}/libc.a
123.endif
124
125.if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
126# for $$divU, $$remU etc. (millicode)
127LDADD+=		-lgcc
128DPADD+=		${LIBGCC}
129.endif
130
131STRIPFLAG=
132
133.PATH: $M
134
135
136${PROG}: ${OBJS} ${DPADD}
137	${_MKMSG_LINK} ${PROG}
138	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
139.if ${MKDEBUG} != "no"
140	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
141	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
142	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
143	) || (rm -f ${.TARGET}.debug; false)
144
145_PROGDEBUG.${PROG} := ${PROG}.debug
146.endif
147
148
149.if ${SHLINKINSTALLDIR} != "/usr/libexec"
150SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
151.endif
152
153.include <bsd.prog.mk>
154.else
155
156MAN=		ld.elf_so.1
157
158.include <bsd.man.mk>
159.endif
160