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Makefile revision 1.106 
      1 #	$NetBSD: Makefile,v 1.106 2011/05/30 16:30:01 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 <${BSD_MK_COMPAT_FILE}>
     11 .endif
     12 
     13 # We are not building this with PIE
     14 PIE_CFLAGS=
     15 PIE_LDFLAGS=
     16 .include <bsd.init.mk>			# for MKPIC definition
     17 .include <bsd.shlib.mk>			# for SHLINKINSTALLDIR definition
     18 
     19 .if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
     20     exists(${.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 CFLAGS+=	-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
     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 #DBG=		-g
     95 DBG=		-O3 -fomit-frame-pointer
     96 
     97 .if ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "x86_64"
     98 DBG+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
     99 .endif
    100 
    101 .if ${SHLIBDIR} != ${LIBDIR}
    102 CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
    103 .endif
    104 
    105 # rtld.c and symbol.c use alloca, so disable SSP warnings.
    106 COPTS.rtld.c+=	-Wno-stack-protector
    107 COPTS.symbol.c+=-Wno-stack-protector
    108 
    109 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
    110 .if ${MKPICLIB} != "no"
    111 LDADD+=		-lc_pic
    112 .if ${MKPICINSTALL} != "no"
    113 DPADD+=		${LIBC_PIC}
    114 .endif
    115 DPADD+=		${CLIBOBJ}/libc_pic.a
    116 .else
    117 LDADD+=		-lc
    118 DPADD+=		${CLIBOBJ}/libc.a
    119 .endif
    120 
    121 STRIPFLAG=
    122 
    123 .PATH: $M
    124 
    125 ${PROG}: ${OBJS} ${DPADD}
    126 	${_MKMSG_LINK} ${PROG}
    127 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    128 
    129 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
    130 SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
    131 .endif
    132 
    133 .include <bsd.prog.mk>
    134 .else
    135 
    136 MAN=		ld.elf_so.1
    137 
    138 .include <bsd.man.mk>
    139 .endif
    140