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Makefile revision 1.123 
      1 #	$NetBSD: Makefile,v 1.123 2013/10/09 22:33:41 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      (${MACHINE_CPU} == "mips") ||					\
     36      (${LDELFSO_MACHINE_ARCH} == "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 
     49 COPTS+=		-fvisibility=hidden
     50 
     51 # Adds SRCS, CPPFLAGS, LDFLAGS, etc.  Must go first so MD startup source
     52 # is first.
     53 .if exists($M/Makefile.inc)
     54 .include "$M/Makefile.inc"
     55 .endif
     56 
     57 # Support compat ld.elf_so.
     58 .if defined(MLIBDIR)
     59 PROG=		ld.elf_so-${MLIBDIR}
     60 CPPFLAGS+=	-DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\"
     61 .else
     62 PROG=		ld.elf_so
     63 .endif
     64 
     65 CLIBOBJ!=	cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
     66 
     67 SRCS+=		rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
     68 		map_object.c load.c search.c headers.c paths.c expand.c \
     69 		tls.c symver.c diagassert.c
     70 
     71 .if ${USE_FORT} == "yes"
     72 .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc
     73 SRCS+=		stack_protector.c
     74 .endif
     75 
     76 .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib
     77 SRCS+=		exit.c
     78 
     79 errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h
     80 	${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \
     81 	mv -f ${.TARGET}.tmp ${.TARGET}
     82 
     83 xprintf.c: errlist_concat.h
     84 
     85 CLEANFILES+=	errlist_concat.h
     86 
     87 BINDIR=		${SHLINKINSTALLDIR}
     88 
     89 CPPFLAGS+=	-DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
     90 CPPFLAGS+=	-I${.CURDIR} -I.
     91 CPPFLAGS+=	-DRTLD_LOADER
     92 CPPFLAGS+=	-D_RTLD_SOURCE
     93 CPPFLAGS+=	-DCOMBRELOC
     94 #CPPFLAGS+=	-DDEBUG
     95 #CPPFLAGS+=	-DRTLD_DEBUG
     96 #CPPFLAGS+=	-DRTLD_DEBUG_RELOC
     97 .if !empty(LDELFSO_MACHINE_ARCH:Mearm*)
     98 CPPFLAGS+=	-I${NETBSDSRCDIR}/lib/libexecinfo
     99 .endif
    100 #DBG=		-g
    101 COPTS+=		-O3
    102 
    103 .if ${MACHINE_CPU} != "m68k" && ${MACHINE_CPU} != "sh3" && ${MACHINE_ARCH} != "vax"
    104 COPTS+=		-fomit-frame-pointer
    105 .endif
    106 
    107 .if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64"
    108 COPTS+=		-mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3
    109 .endif
    110 
    111 
    112 .if ${SHLIBDIR} != ${LIBDIR}
    113 CPPFLAGS+=	-DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
    114 .endif
    115 
    116 # rtld.c and symbol.c use alloca, so disable SSP warnings.
    117 COPTS.rtld.c+=	-Wno-stack-protector
    118 COPTS.symbol.c+=-Wno-stack-protector
    119 
    120 LDADD+=		-L${CLIBOBJ} -L${DESTDIR}${LIBDIR}
    121 .if ${MKPICLIB} != "no"
    122 LDADD+=		-lc_pic
    123 .if ${MKPICINSTALL} != "no"
    124 DPADD+=		${LIBC_PIC}
    125 .endif
    126 DPADD+=		${CLIBOBJ}/libc_pic.a
    127 .else
    128 LDADD+=		-lc
    129 DPADD+=		${CLIBOBJ}/libc.a
    130 .endif
    131 
    132 .if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3"
    133 # for $$divU, $$remU etc. (millicode)
    134 LDADD+=		-lgcc
    135 DPADD+=		${LIBGCC}
    136 .endif
    137 
    138 STRIPFLAG=
    139 
    140 .PATH: $M
    141 
    142 
    143 ${PROG}: ${OBJS} ${DPADD}
    144 	${_MKMSG_LINK} ${PROG}
    145 	${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
    146 .if ${MKDEBUG} != "no"
    147 	(  ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \
    148 	   && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \
    149 	   --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \
    150 	) || (rm -f ${.TARGET}.debug; false)
    151 
    152 _PROGDEBUG.${PROG} := ${PROG}.debug
    153 .endif
    154 
    155 
    156 .if ${SHLINKINSTALLDIR} != "/usr/libexec"
    157 SYMLINKS+=	${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
    158 .if ${MKDEBUG} != "no"
    159 SYMLINKS+=	${DEBUGDIR}${BINDIR}/${PROG}.debug \
    160 		${DEBUGDIR}/usr${BINDIR}/${PROG}.debug
    161 .endif
    162 .endif
    163 
    164 .include <bsd.prog.mk>
    165 .else
    166 
    167 MAN=		ld.elf_so.1
    168 
    169 .include <bsd.man.mk>
    170 .endif
    171