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 50LDFLAGS+= -shared -Wl,-Bsymbolic -Wl,-z,defs 51LIBADD= c_pic 52.if ${MK_TOOLCHAIN} == "no" 53LDFLAGS+= -L${LIBCDIR} 54.endif 55 56.if ${MACHINE_CPUARCH} == "arm" 57# Some of the required math functions (div & mod) are implemented in 58# libcompiler_rt on ARM. The library also needs to be placed first to be 59# correctly linked. As some of the functions are used before we have 60# shared libraries. 61LIBADD+= compiler_rt 62.endif 63 64 65 66.if ${MK_SYMVER} == "yes" 67VERSION_DEF= ${LIBCSRCDIR}/Versions.def 68SYMBOL_MAPS= ${.CURDIR}/Symbol.map 69VERSION_MAP= Version.map 70LDFLAGS+= -Wl,--version-script=${VERSION_MAP} 71 72.if exists(${.CURDIR}/${RTLD_ARCH}/Symbol.map) 73SYMBOL_MAPS+= ${.CURDIR}/${RTLD_ARCH}/Symbol.map 74.endif 75.endif 76 77.sinclude "${.CURDIR}/${RTLD_ARCH}/Makefile.inc" 78 79# Since moving rtld-elf to /libexec, we need to create a symlink. 80# Fixup the existing binary that's there so we can symlink over it. 81beforeinstall: 82.if exists(${DESTDIR}/usr/libexec/${PROG}) && ${MK_STAGING} == "no" 83 -chflags -h noschg ${DESTDIR}/usr/libexec/${PROG} 84.endif 85 86.PATH: ${.CURDIR}/${RTLD_ARCH} 87 88.if ${MK_TESTS} != "no" 89SUBDIR+= tests 90.endif 91 92.include <bsd.prog.mk> 93${PROG_FULL}: ${VERSION_MAP} 94.include <bsd.symver.mk> 95