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> 8PACKAGE= clibs 9MK_SSP= no 10 11CONFS= libmap.conf 12PROG?= ld-elf.so.1 13.if (${PROG:M*ld-elf32*} != "") 14TAGS+= lib32 15.endif 16SRCS= rtld_start.S \ 17 reloc.c rtld.c rtld_lock.c rtld_printf.c map_object.c \ 18 malloc.c xmalloc.c debug.c libmap.c 19MAN= rtld.1 20CSTD?= gnu99 21CFLAGS+= -Wall -DFREEBSD_ELF -DIN_RTLD -ffreestanding 22CFLAGS+= -I${SRCTOP}/lib/csu/common 23.if exists(${.CURDIR}/${MACHINE_ARCH}) 24RTLD_ARCH= ${MACHINE_ARCH} 25.else 26RTLD_ARCH= ${MACHINE_CPUARCH} 27.endif 28CFLAGS+= -I${.CURDIR}/${RTLD_ARCH} -I${.CURDIR} 29.if ${MACHINE_ARCH} == "powerpc64" 30LDFLAGS+= -nostdlib -e _rtld_start 31.else 32LDFLAGS+= -nostdlib -e .rtld_start 33.endif 34WARNS?= 2 35INSTALLFLAGS= -C -b 36PRECIOUSPROG= 37BINDIR= /libexec 38SYMLINKS= ../..${BINDIR}/${PROG} ${LIBEXECDIR}/${PROG} 39MLINKS= rtld.1 ld-elf.so.1.1 \ 40 rtld.1 ld.so.1 41 42.if ${MACHINE_CPUARCH} == "sparc64" 43CFLAGS+= -fPIC 44.else 45CFLAGS+= -fpic 46.endif 47CFLAGS+= -DPIC $(DEBUG) 48.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386" 49CFLAGS+= -fvisibility=hidden 50.endif 51.if ${MACHINE_CPUARCH} == "mips" 52CFLAGS.reloc.c+=-fno-jump-tables 53.endif 54LDFLAGS+= -shared -Wl,-Bsymbolic -Wl,-z,defs 55LIBADD= c_nossp_pic 56.if ${MK_TOOLCHAIN} == "no" 57LDFLAGS+= -L${LIBCDIR} 58.endif 59 60.if ${MACHINE_CPUARCH} == "arm" 61# Some of the required math functions (div & mod) are implemented in 62# libcompiler_rt on ARM. The library also needs to be placed first to be 63# correctly linked. As some of the functions are used before we have 64# shared libraries. 65LIBADD+= compiler_rt 66.endif 67 68 69 70.if ${MK_SYMVER} == "yes" 71VERSION_DEF= ${LIBCSRCDIR}/Versions.def 72SYMBOL_MAPS= ${.CURDIR}/Symbol.map 73VERSION_MAP= Version.map 74LDFLAGS+= -Wl,--version-script=${VERSION_MAP} 75 76.if exists(${.CURDIR}/${RTLD_ARCH}/Symbol.map) 77SYMBOL_MAPS+= ${.CURDIR}/${RTLD_ARCH}/Symbol.map 78.endif 79.endif 80 81.sinclude "${.CURDIR}/${RTLD_ARCH}/Makefile.inc" 82 83# Since moving rtld-elf to /libexec, we need to create a symlink. 84# Fixup the existing binary that's there so we can symlink over it. 85beforeinstall: 86.if exists(${DESTDIR}/usr/libexec/${PROG}) && ${MK_STAGING} == "no" 87 -chflags -h noschg ${DESTDIR}/usr/libexec/${PROG} 88.endif 89 90.PATH: ${.CURDIR}/${RTLD_ARCH} 91 92HAS_TESTS= 93SUBDIR.${MK_TESTS}+= tests 94 95.include <bsd.prog.mk> 96${PROG_FULL}: ${VERSION_MAP} 97.include <bsd.symver.mk> 98