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Makefile revision 1.94 
      1 #	$NetBSD: Makefile,v 1.94 2010/03/18 22:17:55 roy 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 <${BSD_MK_COMPAT_FILE}>
     11 .endif
     12 
     13 # We are not building this with PIE
     14 PIE_CFLAGS=
     15 PIE_LDFLAGS=
     16 .include <bsd.init.mk>			# for OBJECT_FMT definition
     17 .include <bsd.shlib.mk>			# for SHLINKINSTALLDIR definition
     18 
     19 # We use alloca
     20 USE_FORT=	no
     21 USE_SSP=	no
     22 
     23 .if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
     24     exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
     25 ARCHSUBDIR=	${LDELFSO_MACHINE_CPU}
     26 .else
     27 ARCHSUBDIR=	${MACHINE_CPU}
     28 .endif
     29 M=		${.CURDIR}/arch/${ARCHSUBDIR}
     30 
     31 .if ((${MACHINE_ARCH} == "alpha") ||					\
     32      (${MACHINE_CPU} == "arm") ||					\
     33      (${MACHINE_ARCH} == "hppa") ||					\
     34      (${MACHINE_ARCH} == "i386") ||					\
     35      (${MACHINE_ARCH} == "m68k") ||					\
     36      (${MACHINE_CPU} == "mips") ||					\
     37      (${MACHINE_ARCH} == "powerpc") ||					\
     38      (${MACHINE_CPU} == "sh3") ||					\
     39      (${MACHINE_ARCH} == "sparc") ||					\
     40      (${MACHINE_ARCH} == "sparc64") ||					\
     41      (${MACHINE_ARCH} == "x86_64") ||					\
     42      (${MACHINE_ARCH} == "vax")) &&					\
     43     ${OBJECT_FMT} == "ELF" && ${MKPIC} != "no"
     44 
     45 LDFLAGS+=	-shared -symbolic -nostartfiles
     46 LDFLAGS+=	-Wl,-static
     47 
     48 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
     49 # is first.
     50 .if exists($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 
     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 BINDIR=		${SHLINKINSTALLDIR}
     76 
     77 CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
     78 CPPFLAGS+=	-I${.CURDIR}
     79 CPPFLAGS+=	-DRTLD_LOADER
     80 CPPFLAGS+=	-D_RTLD_SOURCE
     81 CPPFLAGS+=	-DCOMBRELOC
     82 #CPPFLAGS+=	-DDEBUG
     83 #CPPFLAGS+=	-DRTLD_DEBUG
     84 #CPPFLAGS+=	-DRTLD_DEBUG_RELOC
     85 #DBG=		-g
     86 DBG=		-O3 -fomit-frame-pointer
     87 
     88 .if ${SHLIBDIR} != ${LIBDIR}
     89 CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
     90 .endif
     91 
     92 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
     93 .if ${MKPICLIB} != "no"
     94 LDADD+=		-lc_pic
     95 .if ${MKPICINSTALL} != "no"
     96 DPADD+=		${LIBC_PIC}
     97 .endif
     98 DPADD+=		${CLIBOBJ}/libc_pic.a
     99 .else
    100 LDADD+=		-lc
    101 DPADD+=		${CLIBOBJ}/libc.a
    102 .endif
    103 
    104 STRIPFLAG=
    105 
    106 .PATH: $M
    107 
    108 ${PROG}: ${OBJS} ${DPADD}
    109 	${_MKMSG_LINK} ${PROG}
    110 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    111 
    112 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
    113 SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
    114 .endif
    115 
    116 .include <bsd.prog.mk>
    117 .else
    118 
    119 MAN=		ld.elf_so.1
    120 
    121 .include <bsd.man.mk>
    122 .endif
    123