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) 45LDFLAGS+= -shared -Wl,-Bsymbolic 46LIBADD= c_pic 47 48.if ${MACHINE_CPUARCH} == "arm" 49# Some of the required math functions (div & mod) are implemented in 50# libcompiler_rt on ARM. The library also needs to be placed first to be 51# correctly linked. As some of the functions are used before we have 52# shared libraries. 53LIBADD+= compiler_rt 54.endif 55 56 57 58.if ${MK_SYMVER} == "yes" 59LIBCDIR= ${TOPSRCDIR}/lib/libc 60VERSION_DEF= ${LIBCDIR}/Versions.def 61SYMBOL_MAPS= ${.CURDIR}/Symbol.map 62VERSION_MAP= Version.map 63LDFLAGS+= -Wl,--version-script=${VERSION_MAP} 64 65${PROG}: ${VERSION_MAP} 66 67.if exists(${.CURDIR}/${RTLD_ARCH}/Symbol.map) 68SYMBOL_MAPS+= ${.CURDIR}/${RTLD_ARCH}/Symbol.map 69.endif 70.endif 71 72.sinclude "${.CURDIR}/${RTLD_ARCH}/Makefile.inc" 73 74# Since moving rtld-elf to /libexec, we need to create a symlink. 75# Fixup the existing binary that's there so we can symlink over it. 76beforeinstall: 77.if exists(${DESTDIR}/usr/libexec/${PROG}) 78 -chflags -h noschg ${DESTDIR}/usr/libexec/${PROG} 79.endif 80 81.PATH: ${.CURDIR}/${RTLD_ARCH} 82 83.if ${MK_TESTS} != "no" 84SUBDIR+= tests 85.endif 86 87.include <bsd.symver.mk> 88.include <bsd.prog.mk> 89