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