Makefile revision 1.131 
1#	$NetBSD: Makefile,v 1.131 2016/06/14 13:06:41 christos 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${.CURDIR} -I. -D_KERNTYPES
95CPPFLAGS+=	-DRTLD_LOADER
96CPPFLAGS+=	-DGNU_RELRO
97CPPFLAGS+=	-D_RTLD_SOURCE
98CPPFLAGS+=	-DCOMBRELOC
99#CPPFLAGS+=	-DDEBUG
100#CPPFLAGS+=	-DRTLD_DEBUG
101#CPPFLAGS+=	-DRTLD_DEBUG_RELOC
102.if !empty(LDELFSO_MACHINE_ARCH:Mearm*)
103CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
104.endif
105#DBG=		-g
106COPTS+=		-O3
107
108.if ${MACHINE_CPU} != "m68k" && ${MACHINE_CPU} != "sh3" && ${MACHINE_ARCH} != "vax"
109COPTS+=		-fomit-frame-pointer
110.endif
111
112.if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64"
113COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
114.endif
115
116
117.if ${SHLIBDIR} != ${LIBDIR}
118CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
119.endif
120
121# rtld.c and symbol.c use alloca, so disable SSP warnings.
122COPTS.rtld.c+=	-Wno-stack-protector
123COPTS.symbol.c+=-Wno-stack-protector
124
125LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
126.if ${MKPICLIB} != "no"
127LDADD+=		-lc_pic
128.if ${MKPICINSTALL} != "no"
129DPADD+=		${LIBC_PIC}
130.endif
131DPADD+=		${CLIBOBJ}/libc_pic.a
132.else
133LDADD+=		-lc
134DPADD+=		${CLIBOBJ}/libc.a
135.endif
136
137.if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
138# for $$divU, $$remU etc. (millicode)
139LDADD+=		-lgcc
140DPADD+=		${LIBGCC}
141.endif
142
143STRIPFLAG=
144
145.PATH: $M
146
147
148${PROG}: ${OBJS} ${DPADD}
149	${_MKMSG_LINK} ${PROG}
150	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
151.if ${MKDEBUG} != "no"
152	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
153	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
154	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
155	) || (rm -f ${.TARGET}.debug; false)
156
157_PROGDEBUG.${PROG} := ${PROG}.debug
158.endif
159
160
161.if ${SHLINKINSTALLDIR} != "/usr/libexec"
162SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
163.if ${MKDEBUG} != "no"
164SYMLINKS+=	${DEBUGDIR}${BINDIR}/${PROG}.debug \
165		${DEBUGDIR}/usr${BINDIR}/${PROG}.debug
166.endif
167.endif
168
169.include <bsd.prog.mk>
170.else
171
172MAN=		ld.elf_so.1
173
174.include <bsd.man.mk>
175.endif
176