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