libexec/rtld-elf/Makefile

   1 # $FreeBSD$
   2
   3 PROG=           ld-elf.so.2
   4 SRCS=           rtld_start.S \
   5                 reloc.c rtld.c rtld_lock.c rtld_printf.c map_object.c \
   6                 malloc.c xmalloc.c debug.c libmap.c
   7 MAN=            rtld.1
   8 BINDIR=         /libexec
   9 SYMLINKS=       ${BINDIR}/${PROG} /usr/libexec/${PROG}
  10 WARNS?=         2
  11
  12 # DO NOT USE -static, this is a special case
  13 .undef NOSHARED
  14
  15 # To activate LD_DEBUG functionality, define ENABLE_DEBUG
  16 # e.g. make -DENABLE_DEBUG
  17
  18 # for now do not let the use of -flto
  19 .if ${CFLAGS:M-flto}
  20 CFLAGS+=        -fno-lto
  21 LDFLAGS+=       -flto
  22 .endif
  23
  24 CFLAGS+=        -DIN_RTLD
  25 CFLAGS+=        -I${.CURDIR}/${MACHINE_ARCH} -I${.CURDIR} -D__thread=
  26 CFLAGS+=        -I${.CURDIR}/../../lib/csu/common
  27 LDFLAGS+=       -nostdlib -Wl,-e.rtld_start,--no-undefined
  28 INSTALLFLAGS=   -C -b
  29 .ifndef NOFSCHG
  30 INSTALLFLAGS+=  -fschg
  31 .endif
  32 MLINKS=         rtld.1 ld-elf.so.2.1
  33 MLINKS+=        rtld.1 _rtld_functrace.3
  34
  35 .if !defined(NO_SYMVER)
  36 VERSION_DEF=    ${.CURDIR}/../../lib/libc/Versions.def
  37 SYMBOL_MAPS=    ${.CURDIR}/Symbol.map
  38 VERSION_MAP=    Version.map
  39 LDFLAGS+=       -Wl,--version-script=${VERSION_MAP}
  40
  41 rtld.c:         ${VERSION_MAP}
  42
  43 .if exists(${.CURDIR}/${MACHINE_ARCH}/Symbol.map)
  44 SYMBOL_MAPS+=   ${.CURDIR}/${MACHINE_ARCH}/Symbol.map
  45 .endif
  46 .endif
  47
  48 .if exists(${.CURDIR}/${MACHINE_ARCH}/Makefile.inc)
  49 .include "${.CURDIR}/${MACHINE_ARCH}/Makefile.inc"
  50 .endif
  51
  52 CFLAGS+=        -fpic -DPIC
  53 LDFLAGS+=       -shared -Wl,-Bsymbolic
  54 DPADD=          ${.OBJDIR}/../../lib/libc_rtld/libc_rtld_pic.a
  55 LDADD=          -L${.OBJDIR}/../../lib/libc_rtld -lc_rtld_pic
  56
  57 .ifdef ENABLE_DEBUG
  58 CFLAGS+=        -DDEBUG
  59 .endif
  60
  61 # The gcc80 -O2 tends to wrap malloc() + bzero() back to local calloc() by
  62 # emitting calloc: imul %rsi,%rdi; mov $0x1,%esi; jmpq 0xfoo <calloc>
  63 FLAGS_GROUPS=   calloc
  64 calloc_FLAGS=   -fno-builtin-malloc
  65 calloc_FLAGS_FILES= malloc.c
  66
  67 # Since moving rtld-elf to /libexec, we need to create a symlink.
  68 # Fixup the existing binary that's there so we can symlink over it.
  69 beforeinstall:
  70 .if exists(${DESTDIR}/usr/libexec/${PROG})
  71         chflags -h noschg ${DESTDIR}/usr/libexec/${PROG}
  72 .endif
  73
  74 .PATH: ${.CURDIR}/${MACHINE_ARCH}
  75
  76 .include <bsd.symver.mk>
  77 .include <bsd.prog.mk>