Makefile revision 1.128 
1#	$NetBSD: Makefile,v 1.128 2014/09/03 19:31:32 matt Exp $
2#
3# NOTE: when changing ld.so, ensure that ldd still compiles.
4#
5
6WARNS?=4
7
8LDELFSO_MACHINE_ARCH?= ${MACHINE_ARCH}
9
10# This needs to be before bsd.init.mk
11.if defined(BSD_MK_COMPAT_FILE)
12.include <${BSD_MK_COMPAT_FILE}>
13.endif
14
15# We are not building this with PIE
16PIE_CFLAGS=
17PIE_LDFLAGS=
18.include <bsd.init.mk>			# for MKPIC definition
19.include <bsd.shlib.mk>			# for SHLINKINSTALLDIR definition
20
21.if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
22    exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
23ARCHSUBDIR=	${LDELFSO_MACHINE_CPU}
24.else
25ARCHSUBDIR=	${MACHINE_CPU}
26.endif
27M=		${.CURDIR}/arch/${ARCHSUBDIR}
28
29.if ((${MACHINE_CPU} == "aarch64") ||					\
30     (${LDELFSO_MACHINE_ARCH} == "alpha") ||				\
31     (${MACHINE_CPU} == "arm") ||					\
32     (${LDELFSO_MACHINE_ARCH} == "coldfire") ||				\
33     (${LDELFSO_MACHINE_ARCH} == "hppa") ||				\
34     (${LDELFSO_MACHINE_ARCH} == "i386") ||				\
35     (${LDELFSO_MACHINE_ARCH} == "m68k") ||				\
36     (${MACHINE_CPU} == "mips") ||					\
37     (${MACHINE_CPU} == "or1k") ||					\
38     (${MACHINE_CPU} == "powerpc") ||					\
39     (${MACHINE_CPU} == "sh3") ||					\
40     (${LDELFSO_MACHINE_ARCH} == "sparc") ||				\
41     (${LDELFSO_MACHINE_ARCH} == "sparc64") ||				\
42     (${LDELFSO_MACHINE_ARCH} == "x86_64") ||				\
43     (${LDELFSO_MACHINE_ARCH} == "vax")) &&				\
44    ${MKPIC} != "no"
45
46LDFLAGS+=	${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
47		-shared -nostartfiles -nodefaultlibs
48LDFLAGS+=	-Wl,-static
49LDFLAGS+=	-Wl,--warn-shared-textrel
50LDFLAGS+=	-Wl,-Map=${.TARGET}.map
51
52COPTS+=		-fvisibility=hidden
53
54# Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
55# is first.
56.if exists($M/Makefile.inc)
57.include "$M/Makefile.inc"
58.endif
59
60# Support compat ld.elf_so.
61.if defined(MLIBDIR)
62PROG=		ld.elf_so-${MLIBDIR}
63CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
64.else
65PROG=		ld.elf_so
66.endif
67
68CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
69
70SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
71		map_object.c load.c search.c headers.c paths.c expand.c \
72		tls.c symver.c diagassert.c
73
74.if ${USE_FORT} == "yes"
75.PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
76SRCS+=		stack_protector.c
77.endif
78
79.PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
80SRCS+=		exit.c
81
82errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
83	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
84	mv -f ${.TARGET}.tmp ${.TARGET}
85
86xprintf.c: errlist_concat.h
87
88CLEANFILES+=	errlist_concat.h ${PROG}.map
89
90BINDIR=		${SHLINKINSTALLDIR}
91
92CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
93CPPFLAGS+=	-I${.CURDIR} -I.
94CPPFLAGS+=	-DRTLD_LOADER
95CPPFLAGS+=	-D_RTLD_SOURCE
96CPPFLAGS+=	-DCOMBRELOC
97#CPPFLAGS+=	-DDEBUG
98#CPPFLAGS+=	-DRTLD_DEBUG
99#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
100.if !empty(LDELFSO_MACHINE_ARCH:Mearm*)
101CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
102.endif
103#DBG=		-g
104COPTS+=		-O3
105
106.if ${MACHINE_CPU} != "m68k" && ${MACHINE_CPU} != "sh3" && ${MACHINE_ARCH} != "vax"
107COPTS+=		-fomit-frame-pointer
108.endif
109
110.if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64"
111COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
112.endif
113
114
115.if ${SHLIBDIR} != ${LIBDIR}
116CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
117.endif
118
119# rtld.c and symbol.c use alloca, so disable SSP warnings.
120COPTS.rtld.c+=	-Wno-stack-protector
121COPTS.symbol.c+=-Wno-stack-protector
122
123LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
124.if ${MKPICLIB} != "no"
125LDADD+=		-lc_pic
126.if ${MKPICINSTALL} != "no"
127DPADD+=		${LIBC_PIC}
128.endif
129DPADD+=		${CLIBOBJ}/libc_pic.a
130.else
131LDADD+=		-lc
132DPADD+=		${CLIBOBJ}/libc.a
133.endif
134
135.if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
136# for $$divU, $$remU etc. (millicode)
137LDADD+=		-lgcc
138DPADD+=		${LIBGCC}
139.endif
140
141STRIPFLAG=
142
143.PATH: $M
144
145
146${PROG}: ${OBJS} ${DPADD}
147	${_MKMSG_LINK} ${PROG}
148	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
149.if ${MKDEBUG} != "no"
150	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
151	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
152	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
153	) || (rm -f ${.TARGET}.debug; false)
154
155_PROGDEBUG.${PROG} := ${PROG}.debug
156.endif
157
158
159.if ${SHLINKINSTALLDIR} != "/usr/libexec"
160SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
161.if ${MKDEBUG} != "no"
162SYMLINKS+=	${DEBUGDIR}${BINDIR}/${PROG}.debug \
163		${DEBUGDIR}/usr${BINDIR}/${PROG}.debug
164.endif
165.endif
166
167.include <bsd.prog.mk>
168.else
169
170MAN=		ld.elf_so.1
171
172.include <bsd.man.mk>
173.endif
174