libexec/rtld-elf/Makefile

   1 # $FreeBSD$
   2
   3 # Use the following command to build local debug version of dynamic
   4 # linker:
   5 # make DEBUG_FLAGS=-g DEBUG=-DDEBUG MK_TESTS=no all
   6
   7 .include <src.opts.mk>
   8 MK_SSP=         no
   9
  10 PROG?=          ld-elf.so.1
  11 SRCS=           rtld_start.S \
  12                 reloc.c rtld.c rtld_lock.c rtld_printf.c map_object.c \
  13                 malloc.c xmalloc.c debug.c libmap.c
  14 MAN=            rtld.1
  15 CSTD?=          gnu99
  16 TOPSRCDIR=      ${.CURDIR}/../..
  17 CFLAGS+=        -Wall -DFREEBSD_ELF -DIN_RTLD
  18 CFLAGS+=        -I${TOPSRCDIR}/lib/csu/common
  19 .if exists(${.CURDIR}/${MACHINE_ARCH})
  20 RTLD_ARCH=      ${MACHINE_ARCH}
  21 .else
  22 RTLD_ARCH=      ${MACHINE_CPUARCH}
  23 .endif
  24 CFLAGS+=        -I${.CURDIR}/${RTLD_ARCH} -I${.CURDIR}
  25 .if ${MACHINE_ARCH} == "powerpc64"
  26 CFLAGS+=        -mcall-aixdesc
  27 LDFLAGS+=       -nostdlib -e _rtld_start
  28 .else
  29 LDFLAGS+=       -nostdlib -e .rtld_start
  30 .endif
  31 WARNS?=         2
  32 INSTALLFLAGS=   -C -b
  33 PRECIOUSPROG=
  34 BINDIR=         /libexec
  35 SYMLINKS=       ${BINDIR}/${PROG} /usr/libexec/${PROG}
  36 MLINKS=         rtld.1 ld-elf.so.1.1 \
  37                 rtld.1 ld.so.1
  38
  39 .if ${MACHINE_CPUARCH} == "sparc64"
  40 CFLAGS+=        -fPIC
  41 .else
  42 CFLAGS+=        -fpic
  43 .endif
  44 CFLAGS+=        -DPIC $(DEBUG)
  45 .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
  46 CFLAGS+=        -fvisibility=hidden
  47 .endif
  48 LDFLAGS+=       -shared -Wl,-Bsymbolic
  49 LIBADD=         c_pic
  50
  51 .if ${MACHINE_CPUARCH} == "arm"
  52 # Some of the required math functions (div & mod) are implemented in
  53 # libcompiler_rt on ARM. The library also needs to be placed first to be
  54 # correctly linked. As some of the functions are used before we have
  55 # shared libraries.
  56 LIBADD+=        compiler_rt
  57 .endif
  58
  59
  60
  61 .if ${MK_SYMVER} == "yes"
  62 LIBCDIR=        ${TOPSRCDIR}/lib/libc
  63 VERSION_DEF=    ${LIBCDIR}/Versions.def
  64 SYMBOL_MAPS=    ${.CURDIR}/Symbol.map
  65 VERSION_MAP=    Version.map
  66 LDFLAGS+=       -Wl,--version-script=${VERSION_MAP}
  67
  68 ${PROG}:        ${VERSION_MAP}
  69
  70 .if exists(${.CURDIR}/${RTLD_ARCH}/Symbol.map)
  71 SYMBOL_MAPS+=   ${.CURDIR}/${RTLD_ARCH}/Symbol.map
  72 .endif
  73 .endif
  74
  75 .sinclude "${.CURDIR}/${RTLD_ARCH}/Makefile.inc"
  76
  77 # Since moving rtld-elf to /libexec, we need to create a symlink.
  78 # Fixup the existing binary that's there so we can symlink over it.
  79 beforeinstall:
  80 .if exists(${DESTDIR}/usr/libexec/${PROG}) && ${MK_STAGING} == "no"
  81         -chflags -h noschg ${DESTDIR}/usr/libexec/${PROG}
  82 .endif
  83
  84 .PATH: ${.CURDIR}/${RTLD_ARCH}
  85
  86 .if ${MK_TESTS} != "no"
  87 SUBDIR+=        tests
  88 .endif
  89
  90 .include <bsd.symver.mk>
  91 .include <bsd.prog.mk>