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 WITHOUT_TESTS=yes all
   6
   7 RTLD_ELF_DIR:=  ${.PARSEDIR}
   8
   9 .include <src.opts.mk>
  10 PACKAGE=        clibs
  11 MK_PIE=         no # Always position independent using local rules
  12 MK_SSP=         no
  13
  14 CONFS=          libmap.conf
  15 PROG?=          ld-elf.so.1
  16 .if (${PROG:M*ld-elf32*} != "")
  17 TAGS+=          lib32
  18 .endif
  19 SRCS= \
  20         crtbrand.S \
  21         rtld_start.S \
  22         reloc.c \
  23         rtld.c \
  24         rtld_lock.c \
  25         rtld_malloc.c \
  26         rtld_printf.c \
  27         map_object.c \
  28         xmalloc.c \
  29         debug.c \
  30         libmap.c
  31 MAN?=           rtld.1
  32 CSTD?=          gnu99
  33 ACFLAGS+=       -DLOCORE
  34 CFLAGS+=        -Wall -DFREEBSD_ELF -DIN_RTLD -ffreestanding
  35 CFLAGS+=        -I${SRCTOP}/lib/csu/common
  36 .if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH})
  37 RTLD_ARCH=      ${MACHINE_ARCH}
  38 .else
  39 RTLD_ARCH=      ${MACHINE_CPUARCH}
  40 .endif
  41 CFLAGS+=        -I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR}
  42
  43 NO_WCAST_ALIGN= yes
  44 WARNS?=         6
  45 INSTALLFLAGS=   -C -b
  46 PRECIOUSPROG=
  47 BINDIR=         /libexec
  48 SYMLINKS=       ../..${BINDIR}/${PROG} ${LIBEXECDIR}/${PROG}
  49 MLINKS?=        rtld.1 ld-elf.so.1.1 \
  50                 rtld.1 ld.so.1
  51
  52 CFLAGS+=        -fpic -DPIC $(DEBUG)
  53
  54 LDFLAGS+=       -shared -Wl,-Bsymbolic -Wl,-z,defs -nostdlib -e ${RTLD_ENTRY}
  55 # Pull in the dependencies that we use from libc
  56 .include "rtld-libc/Makefile.inc"
  57 .if ${MK_TOOLCHAIN} == "no"
  58 LDFLAGS+=       -L${LIBCDIR}
  59 .endif
  60
  61 VERSION_DEF=    ${LIBCSRCDIR}/Versions.def
  62 SYMBOL_MAPS=    ${RTLD_ELF_DIR}/Symbol.map
  63 VERSION_MAP=    Version.map
  64 LDFLAGS+=       -Wl,--version-script=${VERSION_MAP}
  65
  66 .if exists(${RTLD_ELF_DIR}/${RTLD_ARCH}/Symbol.map)
  67 SYMBOL_MAPS+=   ${RTLD_ELF_DIR}/${RTLD_ARCH}/Symbol.map
  68 .endif
  69
  70 .sinclude "${RTLD_ELF_DIR}/${RTLD_ARCH}/Makefile.inc"
  71 RTLD_ENTRY?=    .rtld_start
  72
  73 # Since moving rtld-elf to /libexec, we need to create a symlink.
  74 # Fixup the existing binary that's there so we can symlink over it.
  75 beforeinstall:
  76 .if exists(${DESTDIR}/usr/libexec/${PROG}) && ${MK_STAGING} == "no"
  77         -chflags -h noschg ${DESTDIR}/usr/libexec/${PROG}
  78 .endif
  79
  80 .PATH: ${RTLD_ELF_DIR}/${RTLD_ARCH} ${SRCTOP}/lib/csu/common
  81
  82 .if ${.CURDIR} == ${RTLD_ELF_DIR}
  83 HAS_TESTS=
  84 SUBDIR.${MK_TESTS}+= tests
  85 .endif
  86
  87 .include <bsd.prog.mk>
  88 ${PROG_FULL}:   ${VERSION_MAP}
  89 .include <bsd.symver.mk>
  90
  91 .if ${COMPILER_TYPE} == "gcc"
  92 # GCC warns about redeclarations even though they have __exported
  93 # and are therefore not identical to the ones from the system headers.
  94 CFLAGS+=        -Wno-redundant-decls
  95 .endif