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Makefile revision 1.113 
      1 #	$NetBSD: Makefile,v 1.113 2012/08/23 15:45:02 joerg 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 <${BSD_MK_COMPAT_FILE}>
     11 .endif
     12 
     13 # We are not building this with PIE
     14 PIE_CFLAGS=
     15 PIE_LDFLAGS=
     16 .include <bsd.init.mk>			# for MKPIC definition
     17 
     18 .if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
     19     exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
     20 ARCHSUBDIR=	${LDELFSO_MACHINE_CPU}
     21 .else
     22 ARCHSUBDIR=	${MACHINE_CPU}
     23 .endif
     24 M=		${.CURDIR}/arch/${ARCHSUBDIR}
     25 
     26 .if ((${MACHINE_ARCH} == "alpha") ||					\
     27      (${MACHINE_CPU} == "arm") ||					\
     28      (${MACHINE_ARCH} == "hppa") ||					\
     29      (${MACHINE_ARCH} == "i386") ||					\
     30      (${MACHINE_ARCH} == "m68k") ||					\
     31      (${MACHINE_CPU} == "mips") ||					\
     32      (${MACHINE_ARCH} == "powerpc") ||					\
     33      (${MACHINE_CPU} == "sh3") ||					\
     34      (${MACHINE_ARCH} == "sparc") ||					\
     35      (${MACHINE_ARCH} == "sparc64") ||					\
     36      (${MACHINE_ARCH} == "x86_64") ||					\
     37      (${MACHINE_ARCH} == "vax")) &&					\
     38     ${MKPIC} != "no"
     39 
     40 LDFLAGS+=	${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
     41 		-shared -nostartfiles -nodefaultlibs
     42 LDFLAGS+=	-Wl,-static
     43 LDFLAGS+=	-Wl,--warn-shared-textrel
     44 
     45 COPTS+=		-fvisibility=hidden
     46 
     47 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
     48 # is first.
     49 .if exists($M/Makefile.inc)
     50 .include "$M/Makefile.inc"
     51 .endif
     52 
     53 # Support compat ld.elf_so.
     54 .if defined(MLIBDIR)
     55 PROG=		ld.elf_so-${MLIBDIR}
     56 CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
     57 .else
     58 PROG=		ld.elf_so
     59 .endif
     60 
     61 CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
     62 
     63 SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
     64 		map_object.c load.c search.c headers.c paths.c expand.c \
     65 		tls.c symver.c diagassert.c
     66 
     67 .if ${USE_FORT} == "yes"
     68 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
     69 SRCS+=		stack_protector.c
     70 .endif
     71 
     72 .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
     73 SRCS+=		exit.c
     74 
     75 errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
     76 	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
     77 	mv -f ${.TARGET}.tmp ${.TARGET}
     78 
     79 xprintf.c: errlist_concat.h
     80 
     81 CLEANFILES+=	errlist_concat.h
     82 
     83 CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
     84 CPPFLAGS+=	-I${.CURDIR} -I.
     85 CPPFLAGS+=	-DRTLD_LOADER
     86 CPPFLAGS+=	-D_RTLD_SOURCE
     87 CPPFLAGS+=	-DCOMBRELOC
     88 #CPPFLAGS+=	-DDEBUG
     89 #CPPFLAGS+=	-DRTLD_DEBUG
     90 #CPPFLAGS+=	-DRTLD_DEBUG_RELOC
     91 #DBG=		-g
     92 COPTS=		-O3 -fomit-frame-pointer
     93 
     94 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "x86_64"
     95 COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
     96 .endif
     97 
     98 # rtld.c and symbol.c use alloca, so disable SSP warnings.
     99 COPTS.rtld.c+=	-Wno-stack-protector
    100 COPTS.symbol.c+=-Wno-stack-protector
    101 
    102 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
    103 .if ${MKPICLIB} != "no"
    104 LDADD+=		-lc_pic
    105 .if ${MKPICINSTALL} != "no"
    106 DPADD+=		${LIBC_PIC}
    107 .endif
    108 DPADD+=		${CLIBOBJ}/libc_pic.a
    109 .else
    110 LDADD+=		-lc
    111 DPADD+=		${CLIBOBJ}/libc.a
    112 .endif
    113 
    114 .if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
    115 # for $$divU, $$remU etc. (millicode)
    116 LDADD+=		-lgcc
    117 DPADD+=		${LIBGCC}
    118 .endif
    119 
    120 STRIPFLAG=
    121 
    122 .PATH: $M
    123 
    124 ${PROG}: ${OBJS} ${DPADD}
    125 	${_MKMSG_LINK} ${PROG}
    126 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    127 
    128 .if ${MKDYNAMICROOT} == "no"
    129 BINDIR=		/usr/libexec
    130 .else
    131 BINDIR=		/libexec
    132 .endif
    133 SHLINKDIR=	${BINDIR}
    134 
    135 .if ${SHLINKDIR} != "/usr/libexec"
    136 SYMLINKS+=	${SHLINKDIR}/${PROG} /usr/libexec/${PROG}
    137 .endif
    138 
    139 .include <bsd.prog.mk>
    140 .else
    141 
    142 MAN=		ld.elf_so.1
    143 
    144 .include <bsd.man.mk>
    145 .endif
    146