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Makefile revision 1.101 
      1 #	$NetBSD: Makefile,v 1.101 2010/12/16 22:52:32 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 errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
     73 	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
     74 	mv -f ${.TARGET}.tmp ${.TARGET}
     75 
     76 xprintf.c: errlist_concat.h
     77 
     78 CLEANFILES+=	errlist_concat.h
     79 
     80 BINDIR=		${SHLINKINSTALLDIR}
     81 
     82 CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
     83 CPPFLAGS+=	-I${.CURDIR} -I.
     84 CPPFLAGS+=	-DRTLD_LOADER
     85 CPPFLAGS+=	-D_RTLD_SOURCE
     86 CPPFLAGS+=	-DCOMBRELOC
     87 #CPPFLAGS+=	-DDEBUG
     88 #CPPFLAGS+=	-DRTLD_DEBUG
     89 #CPPFLAGS+=	-DRTLD_DEBUG_RELOC
     90 #DBG=		-g
     91 DBG=		-O3 -fomit-frame-pointer
     92 
     93 .if ${SHLIBDIR} != ${LIBDIR}
     94 CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
     95 .endif
     96 
     97 # rtld.c and symbol.c use alloca, so disable SSP warnings.
     98 COPTS.rtld.c+=	-Wno-stack-protector
     99 COPTS.symbol.c+=-Wno-stack-protector
    100 
    101 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
    102 .if ${MKPICLIB} != "no"
    103 LDADD+=		-lc_pic
    104 .if ${MKPICINSTALL} != "no"
    105 DPADD+=		${LIBC_PIC}
    106 .endif
    107 DPADD+=		${CLIBOBJ}/libc_pic.a
    108 .else
    109 LDADD+=		-lc
    110 DPADD+=		${CLIBOBJ}/libc.a
    111 .endif
    112 
    113 STRIPFLAG=
    114 
    115 .PATH: $M
    116 
    117 ${PROG}: ${OBJS} ${DPADD}
    118 	${_MKMSG_LINK} ${PROG}
    119 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    120 
    121 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
    122 SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
    123 .endif
    124 
    125 .include <bsd.prog.mk>
    126 .else
    127 
    128 MAN=		ld.elf_so.1
    129 
    130 .include <bsd.man.mk>
    131 .endif
    132