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