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 WITHOUT_TESTS=yes all
   6
   7 .include <src.opts.mk>
   8 PACKAGE=        clibs
   9 MK_BIND_NOW=    no
  10 MK_SSP=         no
  11
  12 CONFS=          libmap.conf
  13 PROG?=          ld-elf.so.1
  14 .if (${PROG:M*ld-elf32*} != "")
  15 TAGS+=          lib32
  16 .endif
  17 SRCS=           rtld_start.S \
  18                 reloc.c rtld.c rtld_lock.c rtld_printf.c map_object.c \
  19                 malloc.c xmalloc.c debug.c libmap.c
  20 MAN=            rtld.1
  21 CSTD?=          gnu99
  22 CFLAGS+=        -Wall -DFREEBSD_ELF -DIN_RTLD -ffreestanding
  23 CFLAGS+=        -I${SRCTOP}/lib/csu/common
  24 .if exists(${.CURDIR}/${MACHINE_ARCH})
  25 RTLD_ARCH=      ${MACHINE_ARCH}
  26 .else
  27 RTLD_ARCH=      ${MACHINE_CPUARCH}
  28 .endif
  29 CFLAGS+=        -I${.CURDIR}/${RTLD_ARCH} -I${.CURDIR}
  30 .if ${MACHINE_ARCH} == "powerpc64"
  31 LDFLAGS+=       -nostdlib -e _rtld_start
  32 .else
  33 LDFLAGS+=       -nostdlib -e .rtld_start
  34 .endif
  35
  36 NO_WCAST_ALIGN= yes
  37 WARNS?=         6
  38 INSTALLFLAGS=   -C -b
  39 PRECIOUSPROG=
  40 BINDIR=         /libexec
  41 SYMLINKS=       ../..${BINDIR}/${PROG} ${LIBEXECDIR}/${PROG}
  42 MLINKS=         rtld.1 ld-elf.so.1.1 \
  43                 rtld.1 ld.so.1
  44
  45 .if ${MACHINE_CPUARCH} == "sparc64"
  46 CFLAGS+=        -fPIC
  47 .else
  48 CFLAGS+=        -fpic
  49 .endif
  50 CFLAGS+=        -DPIC $(DEBUG)
  51 .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
  52 CFLAGS+=        -fvisibility=hidden
  53 .endif
  54 .if ${MACHINE_CPUARCH} == "mips"
  55 CFLAGS.reloc.c+=-fno-jump-tables
  56 .endif
  57 LDFLAGS+=       -shared -Wl,-Bsymbolic -Wl,-z,defs
  58 LIBADD=         c_nossp_pic
  59 .if ${MK_TOOLCHAIN} == "no"
  60 LDFLAGS+=       -L${LIBCDIR}
  61 .endif
  62
  63 .if ${MACHINE_CPUARCH} == "arm"
  64 # Some of the required math functions (div & mod) are implemented in
  65 # libcompiler_rt on ARM. The library also needs to be placed first to be
  66 # correctly linked. As some of the functions are used before we have
  67 # shared libraries.
  68 LIBADD+=        compiler_rt
  69 .endif
  70
  71
  72
  73 .if ${MK_SYMVER} == "yes"
  74 VERSION_DEF=    ${LIBCSRCDIR}/Versions.def
  75 SYMBOL_MAPS=    ${.CURDIR}/Symbol.map
  76 VERSION_MAP=    Version.map
  77 LDFLAGS+=       -Wl,--version-script=${VERSION_MAP}
  78
  79 .if exists(${.CURDIR}/${RTLD_ARCH}/Symbol.map)
  80 SYMBOL_MAPS+=   ${.CURDIR}/${RTLD_ARCH}/Symbol.map
  81 .endif
  82 .endif
  83
  84 .sinclude "${.CURDIR}/${RTLD_ARCH}/Makefile.inc"
  85
  86 # Since moving rtld-elf to /libexec, we need to create a symlink.
  87 # Fixup the existing binary that's there so we can symlink over it.
  88 beforeinstall:
  89 .if exists(${DESTDIR}/usr/libexec/${PROG}) && ${MK_STAGING} == "no"
  90         -chflags -h noschg ${DESTDIR}/usr/libexec/${PROG}
  91 .endif
  92
  93 .PATH: ${.CURDIR}/${RTLD_ARCH}
  94
  95 HAS_TESTS=
  96 SUBDIR.${MK_TESTS}+= tests
  97
  98 .include <bsd.prog.mk>
  99 ${PROG_FULL}:   ${VERSION_MAP}
 100 .include <bsd.symver.mk>
 101
 102 .if ${COMPILER_TYPE} == "gcc"
 103 # GCC warns about redeclarations even though they have __exported
 104 # and are therefore not identical to the ones from the system headers.
 105 CFLAGS+=        -Wno-redundant-decls
 106 .if ${COMPILER_VERSION} < 40300
 107 # Silence -Wshadow false positives in ancient GCC
 108 CFLAGS+=        -Wno-shadow
 109 .endif
 110 .endif