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Makefile revision 1.103 
      1 #	$NetBSD: Makefile,v 1.103 2011/03/09 23:10:07 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     ${MKPIC} != "no"
     40 
     41 LDFLAGS+=	-shared -symbolic -nostartfiles
     42 LDFLAGS+=	-Wl,-static
     43 LDFLAGS+=	-Wl,--warn-shared-textrel
     44 
     45 CFLAGS+=	-fvisibility=hidden
     46 
     47 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
     48 # is first.
     49 .if exists($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
     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 BINDIR=		${SHLINKINSTALLDIR}
     84 
     85 CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
     86 CPPFLAGS+=	-I${.CURDIR} -I.
     87 CPPFLAGS+=	-DRTLD_LOADER
     88 CPPFLAGS+=	-D_RTLD_SOURCE
     89 CPPFLAGS+=	-DCOMBRELOC
     90 #CPPFLAGS+=	-DDEBUG
     91 #CPPFLAGS+=	-DRTLD_DEBUG
     92 #CPPFLAGS+=	-DRTLD_DEBUG_RELOC
     93 #DBG=		-g
     94 DBG=		-O3 -fomit-frame-pointer
     95 
     96 .if ${SHLIBDIR} != ${LIBDIR}
     97 CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
     98 .endif
     99 
    100 # rtld.c and symbol.c use alloca, so disable SSP warnings.
    101 COPTS.rtld.c+=	-Wno-stack-protector
    102 COPTS.symbol.c+=-Wno-stack-protector
    103 
    104 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
    105 .if ${MKPICLIB} != "no"
    106 LDADD+=		-lc_pic
    107 .if ${MKPICINSTALL} != "no"
    108 DPADD+=		${LIBC_PIC}
    109 .endif
    110 DPADD+=		${CLIBOBJ}/libc_pic.a
    111 .else
    112 LDADD+=		-lc
    113 DPADD+=		${CLIBOBJ}/libc.a
    114 .endif
    115 
    116 STRIPFLAG=
    117 
    118 .PATH: $M
    119 
    120 ${PROG}: ${OBJS} ${DPADD}
    121 	${_MKMSG_LINK} ${PROG}
    122 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    123 
    124 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
    125 SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
    126 .endif
    127 
    128 .include <bsd.prog.mk>
    129 .else
    130 
    131 MAN=		ld.elf_so.1
    132 
    133 .include <bsd.man.mk>
    134 .endif
    135