Makefile revision 1.126 
1#	$NetBSD: Makefile,v 1.126 2014/03/06 09:34:56 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 ((${LDELFSO_MACHINE_ARCH} == "alpha") ||				\
30     (${MACHINE_CPU} == "arm") ||					\
31     (${LDELFSO_MACHINE_ARCH} == "coldfire") ||				\
32     (${LDELFSO_MACHINE_ARCH} == "hppa") ||				\
33     (${LDELFSO_MACHINE_ARCH} == "i386") ||				\
34     (${LDELFSO_MACHINE_ARCH} == "m68k") ||				\
35     (${MACHINE_CPU} == "mips") ||					\
36     (${MACHINE_CPU} == "powerpc") ||					\
37     (${MACHINE_CPU} == "sh3") ||					\
38     (${LDELFSO_MACHINE_ARCH} == "sparc") ||				\
39     (${LDELFSO_MACHINE_ARCH} == "sparc64") ||				\
40     (${LDELFSO_MACHINE_ARCH} == "x86_64") ||				\
41     (${LDELFSO_MACHINE_ARCH} == "vax")) &&				\
42    ${MKPIC} != "no"
43
44LDFLAGS+=	${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
45		-shared -nostartfiles -nodefaultlibs
46LDFLAGS+=	-Wl,-static
47LDFLAGS+=	-Wl,--warn-shared-textrel
48LDFLAGS+=	-Wl,-Map=${.TARGET}.map
49
50COPTS+=		-fvisibility=hidden
51
52# Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
53# is first.
54.if exists($M/Makefile.inc)
55.include "$M/Makefile.inc"
56.endif
57
58# Support compat ld.elf_so.
59.if defined(MLIBDIR)
60PROG=		ld.elf_so-${MLIBDIR}
61CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
62.else
63PROG=		ld.elf_so
64.endif
65
66CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
67
68SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
69		map_object.c load.c search.c headers.c paths.c expand.c \
70		tls.c symver.c diagassert.c
71
72.if ${USE_FORT} == "yes"
73.PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
74SRCS+=		stack_protector.c
75.endif
76
77.PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
78SRCS+=		exit.c
79
80errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
81	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
82	mv -f ${.TARGET}.tmp ${.TARGET}
83
84xprintf.c: errlist_concat.h
85
86CLEANFILES+=	errlist_concat.h ${PROG}.map
87
88BINDIR=		${SHLINKINSTALLDIR}
89
90CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
91CPPFLAGS+=	-I${.CURDIR} -I.
92CPPFLAGS+=	-DRTLD_LOADER
93CPPFLAGS+=	-D_RTLD_SOURCE
94CPPFLAGS+=	-DCOMBRELOC
95#CPPFLAGS+=	-DDEBUG
96#CPPFLAGS+=	-DRTLD_DEBUG
97#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
98.if !empty(LDELFSO_MACHINE_ARCH:Mearm*)
99CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
100.endif
101#DBG=		-g
102COPTS+=		-O3
103
104.if ${MACHINE_CPU} != "m68k" && ${MACHINE_CPU} != "sh3" && ${MACHINE_ARCH} != "vax"
105COPTS+=		-fomit-frame-pointer
106.endif
107
108.if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64"
109COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
110.endif
111
112
113.if ${SHLIBDIR} != ${LIBDIR}
114CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
115.endif
116
117# rtld.c and symbol.c use alloca, so disable SSP warnings.
118COPTS.rtld.c+=	-Wno-stack-protector
119COPTS.symbol.c+=-Wno-stack-protector
120
121LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
122.if ${MKPICLIB} != "no"
123LDADD+=		-lc_pic
124.if ${MKPICINSTALL} != "no"
125DPADD+=		${LIBC_PIC}
126.endif
127DPADD+=		${CLIBOBJ}/libc_pic.a
128.else
129LDADD+=		-lc
130DPADD+=		${CLIBOBJ}/libc.a
131.endif
132
133.if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
134# for $$divU, $$remU etc. (millicode)
135LDADD+=		-lgcc
136DPADD+=		${LIBGCC}
137.endif
138
139STRIPFLAG=
140
141.PATH: $M
142
143
144${PROG}: ${OBJS} ${DPADD}
145	${_MKMSG_LINK} ${PROG}
146	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
147.if ${MKDEBUG} != "no"
148	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
149	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
150	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
151	) || (rm -f ${.TARGET}.debug; false)
152
153_PROGDEBUG.${PROG} := ${PROG}.debug
154.endif
155
156
157.if ${SHLINKINSTALLDIR} != "/usr/libexec"
158SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
159.if ${MKDEBUG} != "no"
160SYMLINKS+=	${DEBUGDIR}${BINDIR}/${PROG}.debug \
161		${DEBUGDIR}/usr${BINDIR}/${PROG}.debug
162.endif
163.endif
164
165.include <bsd.prog.mk>
166.else
167
168MAN=		ld.elf_so.1
169
170.include <bsd.man.mk>
171.endif
172