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Makefile revision 1.126 
      1 #	$NetBSD: Makefile,v 1.126 2014/03/06 09:34:56 matt Exp $
      2 #
      3 # NOTE: when changing ld.so, ensure that ldd still compiles.
      4 #
      5 
      6 WARNS?=4
      7 
      8 LDELFSO_MACHINE_ARCH?= ${MACHINE_ARCH}
      9 
     10 # This needs to be before bsd.init.mk
     11 .if defined(BSD_MK_COMPAT_FILE)
     12 .include <${BSD_MK_COMPAT_FILE}>
     13 .endif
     14 
     15 # We are not building this with PIE
     16 PIE_CFLAGS=
     17 PIE_LDFLAGS=
     18 .include <bsd.init.mk>			# for MKPIC definition
     19 .include <bsd.shlib.mk>			# for SHLINKINSTALLDIR definition
     20 
     21 .if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
     22     exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
     23 ARCHSUBDIR=	${LDELFSO_MACHINE_CPU}
     24 .else
     25 ARCHSUBDIR=	${MACHINE_CPU}
     26 .endif
     27 M=		${.CURDIR}/arch/${ARCHSUBDIR}
     28 
     29 .if ((${LDELFSO_MACHINE_ARCH} == "alpha") ||				\
     30      (${MACHINE_CPU} == "arm") ||					\
     31      (${LDELFSO_MACHINE_ARCH} == "coldfire") ||				\
     32      (${LDELFSO_MACHINE_ARCH} == "hppa") ||				\
     33      (${LDELFSO_MACHINE_ARCH} == "i386") ||				\
     34      (${LDELFSO_MACHINE_ARCH} == "m68k") ||				\
     35      (${MACHINE_CPU} == "mips") ||					\
     36      (${MACHINE_CPU} == "powerpc") ||					\
     37      (${MACHINE_CPU} == "sh3") ||					\
     38      (${LDELFSO_MACHINE_ARCH} == "sparc") ||				\
     39      (${LDELFSO_MACHINE_ARCH} == "sparc64") ||				\
     40      (${LDELFSO_MACHINE_ARCH} == "x86_64") ||				\
     41      (${LDELFSO_MACHINE_ARCH} == "vax")) &&				\
     42     ${MKPIC} != "no"
     43 
     44 LDFLAGS+=	${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \
     45 		-shared -nostartfiles -nodefaultlibs
     46 LDFLAGS+=	-Wl,-static
     47 LDFLAGS+=	-Wl,--warn-shared-textrel
     48 LDFLAGS+=	-Wl,-Map=${.TARGET}.map
     49 
     50 COPTS+=		-fvisibility=hidden
     51 
     52 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
     53 # is first.
     54 .if exists($M/Makefile.inc)
     55 .include "$M/Makefile.inc"
     56 .endif
     57 
     58 # Support compat ld.elf_so.
     59 .if defined(MLIBDIR)
     60 PROG=		ld.elf_so-${MLIBDIR}
     61 CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
     62 .else
     63 PROG=		ld.elf_so
     64 .endif
     65 
     66 CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
     67 
     68 SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
     69 		map_object.c load.c search.c headers.c paths.c expand.c \
     70 		tls.c symver.c diagassert.c
     71 
     72 .if ${USE_FORT} == "yes"
     73 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
     74 SRCS+=		stack_protector.c
     75 .endif
     76 
     77 .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
     78 SRCS+=		exit.c
     79 
     80 errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
     81 	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
     82 	mv -f ${.TARGET}.tmp ${.TARGET}
     83 
     84 xprintf.c: errlist_concat.h
     85 
     86 CLEANFILES+=	errlist_concat.h ${PROG}.map
     87 
     88 BINDIR=		${SHLINKINSTALLDIR}
     89 
     90 CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
     91 CPPFLAGS+=	-I${.CURDIR} -I.
     92 CPPFLAGS+=	-DRTLD_LOADER
     93 CPPFLAGS+=	-D_RTLD_SOURCE
     94 CPPFLAGS+=	-DCOMBRELOC
     95 #CPPFLAGS+=	-DDEBUG
     96 #CPPFLAGS+=	-DRTLD_DEBUG
     97 #CPPFLAGS+=	-DRTLD_DEBUG_RELOC
     98 .if !empty(LDELFSO_MACHINE_ARCH:Mearm*)
     99 CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
    100 .endif
    101 #DBG=		-g
    102 COPTS+=		-O3
    103 
    104 .if ${MACHINE_CPU} != "m68k" && ${MACHINE_CPU} != "sh3" && ${MACHINE_ARCH} != "vax"
    105 COPTS+=		-fomit-frame-pointer
    106 .endif
    107 
    108 .if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64"
    109 COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
    110 .endif
    111 
    112 
    113 .if ${SHLIBDIR} != ${LIBDIR}
    114 CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
    115 .endif
    116 
    117 # rtld.c and symbol.c use alloca, so disable SSP warnings.
    118 COPTS.rtld.c+=	-Wno-stack-protector
    119 COPTS.symbol.c+=-Wno-stack-protector
    120 
    121 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
    122 .if ${MKPICLIB} != "no"
    123 LDADD+=		-lc_pic
    124 .if ${MKPICINSTALL} != "no"
    125 DPADD+=		${LIBC_PIC}
    126 .endif
    127 DPADD+=		${CLIBOBJ}/libc_pic.a
    128 .else
    129 LDADD+=		-lc
    130 DPADD+=		${CLIBOBJ}/libc.a
    131 .endif
    132 
    133 .if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
    134 # for $$divU, $$remU etc. (millicode)
    135 LDADD+=		-lgcc
    136 DPADD+=		${LIBGCC}
    137 .endif
    138 
    139 STRIPFLAG=
    140 
    141 .PATH: $M
    142 
    143 
    144 ${PROG}: ${OBJS} ${DPADD}
    145 	${_MKMSG_LINK} ${PROG}
    146 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    147 .if ${MKDEBUG} != "no"
    148 	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
    149 	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
    150 	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
    151 	) || (rm -f ${.TARGET}.debug; false)
    152 
    153 _PROGDEBUG.${PROG} := ${PROG}.debug
    154 .endif
    155 
    156 
    157 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
    158 SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
    159 .if ${MKDEBUG} != "no"
    160 SYMLINKS+=	${DEBUGDIR}${BINDIR}/${PROG}.debug \
    161 		${DEBUGDIR}/usr${BINDIR}/${PROG}.debug
    162 .endif
    163 .endif
    164 
    165 .include <bsd.prog.mk>
    166 .else
    167 
    168 MAN=		ld.elf_so.1
    169 
    170 .include <bsd.man.mk>
    171 .endif
    172