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Makefile revision 1.117 
      1 #	$NetBSD: Makefile,v 1.117 2013/05/03 15:52:31 matt Exp $
      2 #
      3 # NOTE: when changing ld.so, ensure that ldd still compiles.
      4 #
      5 
      6 WARNS?=4
      7 
      8 LDELFSO_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
     16 PIE_CFLAGS=
     17 PIE_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})
     23 ARCHSUBDIR=	${LDELFSO_MACHINE_CPU}
     24 .else
     25 ARCHSUBDIR=	${MACHINE_CPU}
     26 .endif
     27 M=		${.CURDIR}/arch/${ARCHSUBDIR}
     28 
     29 .if ((${LDELFSO_MACHINE_ARCH} == "alpha") ||				\
     30      (${MACHINE_CPU} == "arm") ||					\
     31      (${LDELFSO_MACHINE_ARCH} == "hppa") ||				\
     32      (${LDELFSO_MACHINE_ARCH} == "i386") ||				\
     33      (${LDELFSO_MACHINE_ARCH} == "m68k") ||				\
     34      (${MACHINE_CPU} == "mips") ||					\
     35      (${LDELFSO_MACHINE_ARCH} == "powerpc") ||				\
     36      (${MACHINE_CPU} == "sh3") ||					\
     37      (${LDELFSO_MACHINE_ARCH} == "sparc") ||				\
     38      (${LDELFSO_MACHINE_ARCH} == "sparc64") ||				\
     39      (${LDELFSO_MACHINE_ARCH} == "x86_64") ||				\
     40      (${LDELFSO_MACHINE_ARCH} == "vax")) &&				\
     41     ${MKPIC} != "no"
     42 
     43 LDFLAGS+=	${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
     44 		-shared -nostartfiles -nodefaultlibs
     45 LDFLAGS+=	-Wl,-static
     46 LDFLAGS+=	-Wl,--warn-shared-textrel
     47 
     48 COPTS+=		-fvisibility=hidden
     49 
     50 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
     51 # is first.
     52 .if exists($M/Makefile.inc)
     53 .include "$M/Makefile.inc"
     54 .endif
     55 
     56 # Support compat ld.elf_so.
     57 .if defined(MLIBDIR)
     58 PROG=		ld.elf_so-${MLIBDIR}
     59 CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
     60 .else
     61 PROG=		ld.elf_so
     62 .endif
     63 
     64 CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
     65 
     66 SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
     67 		map_object.c load.c search.c headers.c paths.c expand.c \
     68 		tls.c symver.c diagassert.c
     69 
     70 .if ${USE_FORT} == "yes"
     71 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
     72 SRCS+=		stack_protector.c
     73 .endif
     74 
     75 .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
     76 SRCS+=		exit.c
     77 
     78 errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
     79 	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
     80 	mv -f ${.TARGET}.tmp ${.TARGET}
     81 
     82 xprintf.c: errlist_concat.h
     83 
     84 CLEANFILES+=	errlist_concat.h
     85 
     86 BINDIR=		${SHLINKINSTALLDIR}
     87 
     88 CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
     89 CPPFLAGS+=	-I${.CURDIR} -I.
     90 CPPFLAGS+=	-DRTLD_LOADER
     91 CPPFLAGS+=	-D_RTLD_SOURCE
     92 CPPFLAGS+=	-DCOMBRELOC
     93 #CPPFLAGS+=	-DDEBUG
     94 #CPPFLAGS+=	-DRTLD_DEBUG
     95 #CPPFLAGS+=	-DRTLD_DEBUG_RELOC
     96 .if !empty(LDELFSO_MACHINE_ARCH:Mearm*)
     97 CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
     98 .endif
     99 #DBG=		-g
    100 COPTS=		-O3 -fomit-frame-pointer
    101 
    102 .if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64"
    103 COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
    104 .endif
    105 
    106 
    107 .if ${SHLIBDIR} != ${LIBDIR}
    108 CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
    109 .endif
    110 
    111 # rtld.c and symbol.c use alloca, so disable SSP warnings.
    112 COPTS.rtld.c+=	-Wno-stack-protector
    113 COPTS.symbol.c+=-Wno-stack-protector
    114 
    115 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
    116 .if ${MKPICLIB} != "no"
    117 LDADD+=		-lc_pic
    118 .if ${MKPICINSTALL} != "no"
    119 DPADD+=		${LIBC_PIC}
    120 .endif
    121 DPADD+=		${CLIBOBJ}/libc_pic.a
    122 .else
    123 LDADD+=		-lc
    124 DPADD+=		${CLIBOBJ}/libc.a
    125 .endif
    126 
    127 .if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
    128 # for $$divU, $$remU etc. (millicode)
    129 LDADD+=		-lgcc
    130 DPADD+=		${LIBGCC}
    131 .endif
    132 
    133 STRIPFLAG=
    134 
    135 .PATH: $M
    136 
    137 
    138 ${PROG}: ${OBJS} ${DPADD}
    139 	${_MKMSG_LINK} ${PROG}
    140 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    141 .if ${MKDEBUG} != "no"
    142 	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
    143 	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
    144 	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
    145 	) || (rm -f ${.TARGET}.debug; false)
    146 
    147 _PROGDEBUG.${PROG} := ${PROG}.debug
    148 .endif
    149 
    150 
    151 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
    152 SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
    153 .endif
    154 
    155 .include <bsd.prog.mk>
    156 .else
    157 
    158 MAN=		ld.elf_so.1
    159 
    160 .include <bsd.man.mk>
    161 .endif
    162