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Makefile revision 1.100 
      1 #	$NetBSD: Makefile,v 1.100 2010/12/16 22:47:27 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     ${MKPIC} != "no"
     40 
     41 LDFLAGS+=	-shared -symbolic -nostartfiles
     42 LDFLAGS+=	-Wl,-static
     43 CFLAGS+=	-fvisibility=hidden
     44 
     45 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
     46 # is first.
     47 .if exists($M/Makefile.inc)
     48 .include "$M/Makefile.inc"
     49 .endif
     50 
     51 # Support compat ld.elf_so.
     52 .if defined(MLIBDIR)
     53 PROG=		ld.elf_so-${MLIBDIR}
     54 CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
     55 .else
     56 PROG=		ld.elf_so
     57 .endif
     58 
     59 CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
     60 
     61 SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
     62 		map_object.c load.c search.c headers.c paths.c expand.c
     63 
     64 .if ${USE_FORT} == "yes"
     65 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
     66 SRCS+=		stack_protector.c
     67 .endif
     68 
     69 .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
     70 SRCS+=		exit.c
     71 
     72 BINDIR=		${SHLINKINSTALLDIR}
     73 
     74 CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
     75 CPPFLAGS+=	-I${.CURDIR}
     76 CPPFLAGS+=	-DRTLD_LOADER
     77 CPPFLAGS+=	-D_RTLD_SOURCE
     78 CPPFLAGS+=	-DCOMBRELOC
     79 #CPPFLAGS+=	-DDEBUG
     80 #CPPFLAGS+=	-DRTLD_DEBUG
     81 #CPPFLAGS+=	-DRTLD_DEBUG_RELOC
     82 #DBG=		-g
     83 DBG=		-O3 -fomit-frame-pointer
     84 
     85 .if ${SHLIBDIR} != ${LIBDIR}
     86 CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
     87 .endif
     88 
     89 # rtld.c and symbol.c use alloca, so disable SSP warnings.
     90 COPTS.rtld.c+=	-Wno-stack-protector
     91 COPTS.symbol.c+=-Wno-stack-protector
     92 
     93 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
     94 .if ${MKPICLIB} != "no"
     95 LDADD+=		-lc_pic
     96 .if ${MKPICINSTALL} != "no"
     97 DPADD+=		${LIBC_PIC}
     98 .endif
     99 DPADD+=		${CLIBOBJ}/libc_pic.a
    100 .else
    101 LDADD+=		-lc
    102 DPADD+=		${CLIBOBJ}/libc.a
    103 .endif
    104 
    105 STRIPFLAG=
    106 
    107 .PATH: $M
    108 
    109 ${PROG}: ${OBJS} ${DPADD}
    110 	${_MKMSG_LINK} ${PROG}
    111 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    112 
    113 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
    114 SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
    115 .endif
    116 
    117 .include <bsd.prog.mk>
    118 .else
    119 
    120 MAN=		ld.elf_so.1
    121 
    122 .include <bsd.man.mk>
    123 .endif
    124