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> 8MK_SSP= no 9 10PROG?= ld-elf.so.1 11SRCS= 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 14MAN= rtld.1 15CSTD?= gnu99 16TOPSRCDIR= ${.CURDIR}/../.. 17CFLAGS+= -Wall -DFREEBSD_ELF -DIN_RTLD 18CFLAGS+= -I${TOPSRCDIR}/lib/csu/common 19.if exists(${.CURDIR}/${MACHINE_ARCH}) 20RTLD_ARCH= ${MACHINE_ARCH} 21.else 22RTLD_ARCH= ${MACHINE_CPUARCH} 23.endif 24CFLAGS+= -I${.CURDIR}/${RTLD_ARCH} -I${.CURDIR} 25.if ${MACHINE_ARCH} == "powerpc64" 26CFLAGS+= -mcall-aixdesc 27LDFLAGS+= -nostdlib -e _rtld_start 28.else 29LDFLAGS+= -nostdlib -e .rtld_start 30.endif 31WARNS?= 2 32INSTALLFLAGS= -C -b 33PRECIOUSPROG= 34BINDIR= /libexec 35SYMLINKS= ${BINDIR}/${PROG} /usr/libexec/${PROG} 36MLINKS= rtld.1 ld-elf.so.1.1 \ 37 rtld.1 ld.so.1 38 39.if ${MACHINE_CPUARCH} == "sparc64" 40CFLAGS+= -fPIC 41.else 42CFLAGS+= -fpic 43.endif 44CFLAGS+= -DPIC $(DEBUG) 45.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 46CFLAGS+= -fvisibility=hidden 47.endif 48LDFLAGS+= -shared -Wl,-Bsymbolic 49LIBADD= c_pic 50 51.if ${MACHINE_CPUARCH} == "arm" 52# Some of the required math functions (div & mod) are implemented in 53# libcompiler_rt on ARM. The library also needs to be placed first to be 54# correctly linked. As some of the functions are used before we have 55# shared libraries. 56LIBADD+= compiler_rt 57.endif 58 59 60 61.if ${MK_SYMVER} == "yes" 62LIBCDIR= ${TOPSRCDIR}/lib/libc 63VERSION_DEF= ${LIBCDIR}/Versions.def 64SYMBOL_MAPS= ${.CURDIR}/Symbol.map 65VERSION_MAP= Version.map 66LDFLAGS+= -Wl,--version-script=${VERSION_MAP} 67 68${PROG}: ${VERSION_MAP} 69 70.if exists(${.CURDIR}/${RTLD_ARCH}/Symbol.map) 71SYMBOL_MAPS+= ${.CURDIR}/${RTLD_ARCH}/Symbol.map 72.endif 73.endif 74 75.sinclude "${.CURDIR}/${RTLD_ARCH}/Makefile.inc" 76 77# Since moving rtld-elf to /libexec, we need to create a symlink. 78# Fixup the existing binary that's there so we can symlink over it. 79beforeinstall: 80.if exists(${DESTDIR}/usr/libexec/${PROG}) && ${MK_STAGING} == "no" 81 -chflags -h noschg ${DESTDIR}/usr/libexec/${PROG} 82.endif 83 84.PATH: ${.CURDIR}/${RTLD_ARCH} 85 86.if ${MK_TESTS} != "no" 87SUBDIR+= tests 88.endif 89 90.include <bsd.symver.mk> 91.include <bsd.prog.mk> 92