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Makefile revision 1.116 
      1 #	$NetBSD: Makefile,v 1.116 2013/04/24 22:37:20 matt Exp $
      2 #
      3 # NOTE: when changing ld.so, ensure that ldd still compiles.
      4 #
      5 
      6 WARNS?=4
      7 
      8 # This needs to be before bsd.init.mk
      9 .if defined(BSD_MK_COMPAT_FILE)
     10 .include <${BSD_MK_COMPAT_FILE}>
     11 .endif
     12 
     13 # We are not building this with PIE
     14 PIE_CFLAGS=
     15 PIE_LDFLAGS=
     16 .include <bsd.init.mk>			# for MKPIC definition
     17 .include <bsd.shlib.mk>			# for SHLINKINSTALLDIR definition
     18 
     19 .if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
     20     exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
     21 ARCHSUBDIR=	${LDELFSO_MACHINE_CPU}
     22 .else
     23 ARCHSUBDIR=	${MACHINE_CPU}
     24 .endif
     25 M=		${.CURDIR}/arch/${ARCHSUBDIR}
     26 
     27 .if ((${MACHINE_ARCH} == "alpha") ||					\
     28      (${MACHINE_CPU} == "arm") ||					\
     29      (${MACHINE_ARCH} == "hppa") ||					\
     30      (${MACHINE_ARCH} == "i386") ||					\
     31      (${MACHINE_ARCH} == "m68k") ||					\
     32      (${MACHINE_CPU} == "mips") ||					\
     33      (${MACHINE_ARCH} == "powerpc") ||					\
     34      (${MACHINE_CPU} == "sh3") ||					\
     35      (${MACHINE_ARCH} == "sparc") ||					\
     36      (${MACHINE_ARCH} == "sparc64") ||					\
     37      (${MACHINE_ARCH} == "x86_64") ||					\
     38      (${MACHINE_ARCH} == "vax")) &&					\
     39     ${MKPIC} != "no"
     40 
     41 LDFLAGS+=	${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
     42 		-shared -nostartfiles -nodefaultlibs
     43 LDFLAGS+=	-Wl,-static
     44 LDFLAGS+=	-Wl,--warn-shared-textrel
     45 
     46 COPTS+=		-fvisibility=hidden
     47 
     48 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
     49 # is first.
     50 .if exists($M/Makefile.inc)
     51 .include "$M/Makefile.inc"
     52 .endif
     53 
     54 # Support compat ld.elf_so.
     55 .if defined(MLIBDIR)
     56 PROG=		ld.elf_so-${MLIBDIR}
     57 CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
     58 .else
     59 PROG=		ld.elf_so
     60 .endif
     61 
     62 CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
     63 
     64 SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
     65 		map_object.c load.c search.c headers.c paths.c expand.c \
     66 		tls.c symver.c diagassert.c
     67 
     68 .if ${USE_FORT} == "yes"
     69 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
     70 SRCS+=		stack_protector.c
     71 .endif
     72 
     73 .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
     74 SRCS+=		exit.c
     75 
     76 errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
     77 	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
     78 	mv -f ${.TARGET}.tmp ${.TARGET}
     79 
     80 xprintf.c: errlist_concat.h
     81 
     82 CLEANFILES+=	errlist_concat.h
     83 
     84 BINDIR=		${SHLINKINSTALLDIR}
     85 
     86 CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
     87 CPPFLAGS+=	-I${.CURDIR} -I.
     88 CPPFLAGS+=	-DRTLD_LOADER
     89 CPPFLAGS+=	-D_RTLD_SOURCE
     90 CPPFLAGS+=	-DCOMBRELOC
     91 #CPPFLAGS+=	-DDEBUG
     92 #CPPFLAGS+=	-DRTLD_DEBUG
     93 #CPPFLAGS+=	-DRTLD_DEBUG_RELOC
     94 .if !empty(MACHINE_ARCH:Mearm*)
     95 CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
     96 .endif
     97 #DBG=		-g
     98 COPTS=		-O3 -fomit-frame-pointer
     99 
    100 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "x86_64"
    101 COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
    102 .endif
    103 
    104 
    105 .if ${SHLIBDIR} != ${LIBDIR}
    106 CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
    107 .endif
    108 
    109 # rtld.c and symbol.c use alloca, so disable SSP warnings.
    110 COPTS.rtld.c+=	-Wno-stack-protector
    111 COPTS.symbol.c+=-Wno-stack-protector
    112 
    113 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
    114 .if ${MKPICLIB} != "no"
    115 LDADD+=		-lc_pic
    116 .if ${MKPICINSTALL} != "no"
    117 DPADD+=		${LIBC_PIC}
    118 .endif
    119 DPADD+=		${CLIBOBJ}/libc_pic.a
    120 .else
    121 LDADD+=		-lc
    122 DPADD+=		${CLIBOBJ}/libc.a
    123 .endif
    124 
    125 .if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
    126 # for $$divU, $$remU etc. (millicode)
    127 LDADD+=		-lgcc
    128 DPADD+=		${LIBGCC}
    129 .endif
    130 
    131 STRIPFLAG=
    132 
    133 .PATH: $M
    134 
    135 
    136 ${PROG}: ${OBJS} ${DPADD}
    137 	${_MKMSG_LINK} ${PROG}
    138 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    139 .if ${MKDEBUG} != "no"
    140 	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
    141 	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
    142 	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
    143 	) || (rm -f ${.TARGET}.debug; false)
    144 
    145 _PROGDEBUG.${PROG} := ${PROG}.debug
    146 .endif
    147 
    148 
    149 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
    150 SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
    151 .endif
    152 
    153 .include <bsd.prog.mk>
    154 .else
    155 
    156 MAN=		ld.elf_so.1
    157 
    158 .include <bsd.man.mk>
    159 .endif
    160