# $NetBSD: Makefile,v 1.141.2.2 2023/08/11 12:13:10 sborrill Exp $ # # NOTE: when changing ld.so, ensure that ldd still compiles. # NOSANITIZER= # defined WARNS?=4 LDELFSO_MACHINE_ARCH?= ${MACHINE_ARCH} # This needs to be before bsd.init.mk .if defined(BSD_MK_COMPAT_FILE) .include <${BSD_MK_COMPAT_FILE}> .endif # We are not building this with PIE PIE_CFLAGS= PIE_LDFLAGS= .include # for MKPIC definition .include # for SHLINKINSTALLDIR definition .if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \ exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU}) ARCHSUBDIR= ${LDELFSO_MACHINE_CPU} .else ARCHSUBDIR= ${MACHINE_CPU} .endif M= ${.CURDIR}/arch/${ARCHSUBDIR} .if ((${MACHINE_CPU} == "aarch64") || \ (${LDELFSO_MACHINE_ARCH} == "alpha") || \ (${MACHINE_CPU} == "arm") || \ (${LDELFSO_MACHINE_ARCH} == "coldfire") || \ (${LDELFSO_MACHINE_ARCH} == "hppa") || \ (${LDELFSO_MACHINE_ARCH} == "i386") || \ (${LDELFSO_MACHINE_ARCH} == "m68k") || \ (${MACHINE_CPU} == "mips") || \ (${MACHINE_CPU} == "or1k") || \ (${MACHINE_CPU} == "powerpc") || \ (${MACHINE_CPU} == "riscv") || \ (${MACHINE_CPU} == "sh3") || \ (${LDELFSO_MACHINE_ARCH} == "sparc") || \ (${LDELFSO_MACHINE_ARCH} == "sparc64") || \ (${LDELFSO_MACHINE_ARCH} == "x86_64") || \ (${LDELFSO_MACHINE_ARCH} == "vax")) && \ ${MKPIC} != "no" LDFLAGS+= ${${ACTIVE_CC} == "clang":? -Wl,-Bsymbolic : -symbolic} \ -shared -nostartfiles -nodefaultlibs LDFLAGS+= -Wl,-static LDFLAGS+= -Wl,--warn-shared-textrel LDFLAGS+= -Wl,-Map=${.TARGET}.map COPTS+= -fvisibility=hidden # Adds SRCS, CPPFLAGS, LDFLAGS, etc. Must go first so MD startup source # is first. .if exists($M/Makefile.inc) .include "$M/Makefile.inc" .endif # Support compat ld.elf_so. .if defined(MLIBDIR) PROG= ld.elf_so-${MLIBDIR} CPPFLAGS+= -DRTLD_ARCH_SUBDIR=\"${MLIBDIR}\" . if ${MLIBDIR} == "o32" . endif .else PROG= ld.elf_so .endif CLIBOBJ!= cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR} SRCS+= compat.c SRCS+= debug.c SRCS+= diagassert.c SRCS+= expand.c SRCS+= hash.c SRCS+= headers.c SRCS+= load.c SRCS+= map_object.c SRCS+= paths.c SRCS+= reloc.c SRCS+= rtld.c SRCS+= search.c SRCS+= symbol.c SRCS+= symver.c SRCS+= tls.c SRCS+= xmalloc.c SRCS+= xprintf.c .if ${USE_FORT} == "yes" .PATH.c: ${NETBSDSRCDIR}/lib/libc/misc SRCS+= stack_protector.c .endif .PATH.c: ${NETBSDSRCDIR}/lib/libc/stdlib SRCS+= exit.c errlist_concat.h: ${NETBSDSRCDIR}/lib/libc/gen/errlist.awk ${NETBSDSRCDIR}/sys/sys/errno.h ${TOOL_AWK} -v concat=1 -f ${.ALLSRC} > ${.TARGET}.tmp && \ mv -f ${.TARGET}.tmp ${.TARGET} xprintf.c: errlist_concat.h CLEANFILES+= errlist_concat.h ${PROG}.map BINDIR= ${SHLINKINSTALLDIR} CPPFLAGS.tls.c+= -std=gnu11 CPPFLAGS+= -DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\" CPPFLAGS+= -I${.CURDIR} -I. -D_KERNTYPES CPPFLAGS+= -DRTLD_LOADER CPPFLAGS+= -DGNU_RELRO CPPFLAGS+= -D_RTLD_SOURCE CPPFLAGS+= -DHAVE_INITFINI_ARRAY #CPPFLAGS+= -DDEBUG #CPPFLAGS+= -DRTLD_DEBUG #CPPFLAGS+= -DRTLD_DEBUG_RELOC .if !empty(LDELFSO_MACHINE_ARCH:Mearm*) CPPFLAGS+= -I${NETBSDSRCDIR}/lib/libexecinfo .endif #DBG= -g COPTS+= -O3 .if ${MACHINE_CPU} != "m68k" && ${MACHINE_CPU} != "sh3" && ${MACHINE_ARCH} != "vax" COPTS+= -fomit-frame-pointer .endif .if ${LDELFSO_MACHINE_ARCH} == "i386" || ${LDELFSO_MACHINE_ARCH} == "x86_64" COPTS+= -mno-3dnow -mno-mmx -mno-sse -mno-sse2 -mno-sse3 .endif .if ${SHLIBDIR} != ${LIBDIR} CPPFLAGS+= -DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\" .endif # rtld.c and symbol.c use alloca, so disable SSP warnings. COPTS.rtld.c+= -Wno-stack-protector COPTS.symbol.c+=-Wno-stack-protector .if ${MACHINE_CPU} == "vax" COPTS.rtld.c+= -O0 .endif LDADD+= -Wl,--version-script=${.CURDIR}/symbols.map LDADD+= -L${CLIBOBJ} -L${DESTDIR}${LIBDIR} .if ${MKPICLIB} != "no" LDADD+= -lc_pic .if ${MKPICINSTALL} != "no" DPADD+= ${LIBC_PIC} .endif DPADD+= ${CLIBOBJ}/libc_pic.a .else LDADD+= -lc DPADD+= ${CLIBOBJ}/libc.a .endif .if ${MACHINE_CPU} == "hppa" || ${MACHINE_CPU} == "sh3" # for $$divU, $$remU etc. (millicode) LDADD+= -lgcc DPADD+= ${LIBGCC} .endif STRIPFLAG= .PATH: $M ${PROG}: ${OBJS} ${DPADD} ${_MKMSG_LINK} ${PROG} ${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD} .if ${MKDEBUG} != "no" ( ${OBJCOPY} --only-keep-debug ${.TARGET} ${.TARGET}.debug \ && ${OBJCOPY} --strip-debug -p -R .gnu_debuglink \ --add-gnu-debuglink=${.TARGET}.debug ${.TARGET} \ ) || (rm -f ${.TARGET}.debug; false) _PROGDEBUG.${PROG} := ${PROG}.debug .endif .if ${SHLINKINSTALLDIR} != "/usr/libexec" SYMLINKS+= ${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG} .if ${MKDEBUG} != "no" SYMLINKS+= ${DEBUGDIR}${BINDIR}/${PROG}.debug \ ${DEBUGDIR}/usr${BINDIR}/${PROG}.debug .endif .endif .include .else MAN= ld.elf_so.1 .include .endif