Makefile revision 1.122 
1#	$NetBSD: Makefile,v 1.122 2013/08/12 17:15:46 joerg 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     (${MACHINE_CPU} == "mips") ||					\
36     (${LDELFSO_MACHINE_ARCH} == "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
48
49COPTS+=		-fvisibility=hidden
50
51# Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
52# is first.
53.if exists($M/Makefile.inc)
54.include "$M/Makefile.inc"
55.endif
56
57# Support compat ld.elf_so.
58.if defined(MLIBDIR)
59PROG=		ld.elf_so-${MLIBDIR}
60CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
61.else
62PROG=		ld.elf_so
63.endif
64
65CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
66
67SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
68		map_object.c load.c search.c headers.c paths.c expand.c \
69		tls.c symver.c diagassert.c
70
71.if ${USE_FORT} == "yes"
72.PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
73SRCS+=		stack_protector.c
74.endif
75
76.PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
77SRCS+=		exit.c
78
79errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
80	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
81	mv -f ${.TARGET}.tmp ${.TARGET}
82
83xprintf.c: errlist_concat.h
84
85CLEANFILES+=	errlist_concat.h
86
87BINDIR=		${SHLINKINSTALLDIR}
88
89CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
90CPPFLAGS+=	-I${.CURDIR} -I.
91CPPFLAGS+=	-DRTLD_LOADER
92CPPFLAGS+=	-D_RTLD_SOURCE
93CPPFLAGS+=	-DCOMBRELOC
94#CPPFLAGS+=	-DDEBUG
95#CPPFLAGS+=	-DRTLD_DEBUG
96#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
97.if !empty(LDELFSO_MACHINE_ARCH:Mearm*)
98CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
99.endif
100#DBG=		-g
101COPTS+=		-O3
102
103.if ${MACHINE_ARCH} != "m68k" && ${MACHINE_CPU} != "sh3" && ${MACHINE_ARCH} != "vax"
104COPTS+=		-fomit-frame-pointer
105.endif
106
107.if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64"
108COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
109.endif
110
111
112.if ${SHLIBDIR} != ${LIBDIR}
113CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
114.endif
115
116# rtld.c and symbol.c use alloca, so disable SSP warnings.
117COPTS.rtld.c+=	-Wno-stack-protector
118COPTS.symbol.c+=-Wno-stack-protector
119
120LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
121.if ${MKPICLIB} != "no"
122LDADD+=		-lc_pic
123.if ${MKPICINSTALL} != "no"
124DPADD+=		${LIBC_PIC}
125.endif
126DPADD+=		${CLIBOBJ}/libc_pic.a
127.else
128LDADD+=		-lc
129DPADD+=		${CLIBOBJ}/libc.a
130.endif
131
132.if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
133# for $$divU, $$remU etc. (millicode)
134LDADD+=		-lgcc
135DPADD+=		${LIBGCC}
136.endif
137
138STRIPFLAG=
139
140.PATH: $M
141
142
143${PROG}: ${OBJS} ${DPADD}
144	${_MKMSG_LINK} ${PROG}
145	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
146.if ${MKDEBUG} != "no"
147	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
148	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
149	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
150	) || (rm -f ${.TARGET}.debug; false)
151
152_PROGDEBUG.${PROG} := ${PROG}.debug
153.endif
154
155
156.if ${SHLINKINSTALLDIR} != "/usr/libexec"
157SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
158.if ${MKDEBUG} != "no"
159SYMLINKS+=	${DEBUGDIR}${BINDIR}/${PROG}.debug \
160		${DEBUGDIR}/usr${BINDIR}/${PROG}.debug
161.endif
162.endif
163
164.include <bsd.prog.mk>
165.else
166
167MAN=		ld.elf_so.1
168
169.include <bsd.man.mk>
170.endif
171