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 ACFLAGS+=       -DLOCORE
  33 CFLAGS+=        -Wall -DFREEBSD_ELF -DIN_RTLD -ffreestanding
  34 CFLAGS+=        -I${SRCTOP}/lib/csu/common
  35 .if exists(${RTLD_ELF_DIR}/${MACHINE_ARCH})
  36 RTLD_ARCH=      ${MACHINE_ARCH}
  37 .else
  38 RTLD_ARCH=      ${MACHINE_CPUARCH}
  39 .endif
  40 CFLAGS+=        -I${RTLD_ELF_DIR}/${RTLD_ARCH} -I${RTLD_ELF_DIR}
  41
  42 NO_WCAST_ALIGN= yes
  43 WARNS?=         6
  44 INSTALLFLAGS=   -C -b
  45 PRECIOUSPROG=
  46 BINDIR=         /libexec
  47 SYMLINKS=       ../..${BINDIR}/${PROG} ${LIBEXECDIR}/${PROG}
  48 MLINKS?=        rtld.1 ld-elf.so.1.1 \
  49                 rtld.1 ld.so.1
  50
  51 CFLAGS+=        -fpic -DPIC $(DEBUG)
  52
  53 LDFLAGS+=       -shared -Wl,-Bsymbolic -Wl,-z,defs -nostdlib -e ${RTLD_ENTRY}
  54 # Pull in the dependencies that we use from libc
  55 .include "rtld-libc/Makefile.inc"
  56 .if ${MK_TOOLCHAIN} == "no"
  57 LDFLAGS+=       -L${LIBCDIR}
  58 .endif
  59
  60 VERSION_DEF=    ${LIBCSRCDIR}/Versions.def
  61 SYMBOL_MAPS=    ${RTLD_ELF_DIR}/Symbol.map
  62 VERSION_MAP=    Version.map
  63 LDFLAGS+=       -Wl,--version-script=${VERSION_MAP}
  64
  65 .if exists(${RTLD_ELF_DIR}/${RTLD_ARCH}/Symbol.map)
  66 SYMBOL_MAPS+=   ${RTLD_ELF_DIR}/${RTLD_ARCH}/Symbol.map
  67 .endif
  68
  69 .sinclude "${RTLD_ELF_DIR}/${RTLD_ARCH}/Makefile.inc"
  70 RTLD_ENTRY?=    .rtld_start
  71
  72 # Since moving rtld-elf to /libexec, we need to create a symlink.
  73 # Fixup the existing binary that's there so we can symlink over it.
  74 beforeinstall:
  75 .if exists(${DESTDIR}/usr/libexec/${PROG}) && ${MK_STAGING} == "no"
  76         -chflags -h noschg ${DESTDIR}/usr/libexec/${PROG}
  77 .endif
  78
  79 .PATH: ${RTLD_ELF_DIR}/${RTLD_ARCH} ${SRCTOP}/lib/csu/common
  80
  81 .if ${.CURDIR} == ${RTLD_ELF_DIR}
  82 HAS_TESTS=
  83 SUBDIR.${MK_TESTS}+= tests
  84 .endif
  85
  86 .include <bsd.prog.mk>
  87 ${PROG_FULL}:   ${VERSION_MAP}
  88 .include <bsd.symver.mk>
  89
  90 .if ${COMPILER_TYPE} == "gcc"
  91 # GCC warns about redeclarations even though they have __exported
  92 # and are therefore not identical to the ones from the system headers.
  93 CFLAGS+=        -Wno-redundant-decls
  94 .endif