Makefile revision 1.129 
1#	$NetBSD: Makefile,v 1.129 2014/09/19 17:43:33 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     (${MACHINE_CPU} == "riscv") ||					\
40     (${MACHINE_CPU} == "sh3") ||					\
41     (${LDELFSO_MACHINE_ARCH} == "sparc") ||				\
42     (${LDELFSO_MACHINE_ARCH} == "sparc64") ||				\
43     (${LDELFSO_MACHINE_ARCH} == "x86_64") ||				\
44     (${LDELFSO_MACHINE_ARCH} == "vax")) &&				\
45    ${MKPIC} != "no"
46
47LDFLAGS+=	${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
48		-shared -nostartfiles -nodefaultlibs
49LDFLAGS+=	-Wl,-static
50LDFLAGS+=	-Wl,--warn-shared-textrel
51LDFLAGS+=	-Wl,-Map=${.TARGET}.map
52
53COPTS+=		-fvisibility=hidden
54
55# Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
56# is first.
57.if exists($M/Makefile.inc)
58.include "$M/Makefile.inc"
59.endif
60
61# Support compat ld.elf_so.
62.if defined(MLIBDIR)
63PROG=		ld.elf_so-${MLIBDIR}
64CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
65.else
66PROG=		ld.elf_so
67.endif
68
69CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
70
71SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
72		map_object.c load.c search.c headers.c paths.c expand.c \
73		tls.c symver.c diagassert.c
74
75.if ${USE_FORT} == "yes"
76.PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
77SRCS+=		stack_protector.c
78.endif
79
80.PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
81SRCS+=		exit.c
82
83errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
84	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
85	mv -f ${.TARGET}.tmp ${.TARGET}
86
87xprintf.c: errlist_concat.h
88
89CLEANFILES+=	errlist_concat.h ${PROG}.map
90
91BINDIR=		${SHLINKINSTALLDIR}
92
93CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
94CPPFLAGS+=	-I${.CURDIR} -I.
95CPPFLAGS+=	-DRTLD_LOADER
96CPPFLAGS+=	-D_RTLD_SOURCE
97CPPFLAGS+=	-DCOMBRELOC
98#CPPFLAGS+=	-DDEBUG
99#CPPFLAGS+=	-DRTLD_DEBUG
100#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
101.if !empty(LDELFSO_MACHINE_ARCH:Mearm*)
102CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
103.endif
104#DBG=		-g
105COPTS+=		-O3
106
107.if ${MACHINE_CPU} != "m68k" && ${MACHINE_CPU} != "sh3" && ${MACHINE_ARCH} != "vax"
108COPTS+=		-fomit-frame-pointer
109.endif
110
111.if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64"
112COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
113.endif
114
115
116.if ${SHLIBDIR} != ${LIBDIR}
117CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
118.endif
119
120# rtld.c and symbol.c use alloca, so disable SSP warnings.
121COPTS.rtld.c+=	-Wno-stack-protector
122COPTS.symbol.c+=-Wno-stack-protector
123
124LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
125.if ${MKPICLIB} != "no"
126LDADD+=		-lc_pic
127.if ${MKPICINSTALL} != "no"
128DPADD+=		${LIBC_PIC}
129.endif
130DPADD+=		${CLIBOBJ}/libc_pic.a
131.else
132LDADD+=		-lc
133DPADD+=		${CLIBOBJ}/libc.a
134.endif
135
136.if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
137# for $$divU, $$remU etc. (millicode)
138LDADD+=		-lgcc
139DPADD+=		${LIBGCC}
140.endif
141
142STRIPFLAG=
143
144.PATH: $M
145
146
147${PROG}: ${OBJS} ${DPADD}
148	${_MKMSG_LINK} ${PROG}
149	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
150.if ${MKDEBUG} != "no"
151	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
152	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
153	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
154	) || (rm -f ${.TARGET}.debug; false)
155
156_PROGDEBUG.${PROG} := ${PROG}.debug
157.endif
158
159
160.if ${SHLINKINSTALLDIR} != "/usr/libexec"
161SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
162.if ${MKDEBUG} != "no"
163SYMLINKS+=	${DEBUGDIR}${BINDIR}/${PROG}.debug \
164		${DEBUGDIR}/usr${BINDIR}/${PROG}.debug
165.endif
166.endif
167
168.include <bsd.prog.mk>
169.else
170
171MAN=		ld.elf_so.1
172
173.include <bsd.man.mk>
174.endif
175