minix/libexec/ld.elf_so/Makefile
Ben Gras 4b999f1962 build shared versions of libraries
building defaults to off until clang is updated.

current clang does not handle -shared, necessary to change the ld
invocation to build shared libraries properly. a new clang should be
installed and MKPIC defaults to no unless the newer clang is detected.

changes:

	. mainly small imports of a Makefile or two and small fixes
	  (turning things back on that were turned off in Makefiles)
	. e.g.: dynamic librefuse now depends on dynamic
	  libpuffs, so libpuffs has to be built dynamically too
	  and a make dependency barrier is needed in lib/Makefile
	. all library objects now have a PIC (for .so) and non-PIC
	  version, so everything is built twice.
	. generate PIC versions of the compat (un-RENAMEd) jump files,
	  include function type annotation in generated assembly
	. build progs with -static by default for now
	. also build ld.elf_so
	. also import NetBSD ldd
2012-04-16 05:21:20 +02:00

143 lines
3.5 KiB
Makefile

# $NetBSD: Makefile,v 1.102 2011/01/16 02:36:05 matt Exp $
#
# NOTE: when changing ld.so, ensure that ldd still compiles.
#
WARNS?=4
# This executable needs to be linked dynamically
MINIXDYNAMIC=yes
# And the minix gcc currently references /libexec/ld-elf.so.1
SYMLINKS+= ${SHLINKINSTALLDIR}/${PROG} /libexec/ld-elf.so.1
# This needs to be before bsd.init.mk
.if defined(BSD_MK_COMPAT_FILE)
.include <${BSD_MK_COMPAT_FILE}>
.endif
# We are not building this with PIE
PIE_CFLAGS=
PIE_LDFLAGS=
.include <bsd.init.mk> # for MKPIC definition
.include <bsd.shlib.mk> # for SHLINKINSTALLDIR definition
.if defined(LDELFSO_MACHINE_CPU) && !empty(LDELFSO_MACHINE_CPU) && \
exists(${.CURDIR}/arch/${LDELFSO_MACHINE_CPU})
ARCHSUBDIR= ${LDELFSO_MACHINE_CPU}
.else
ARCHSUBDIR= ${MACHINE_CPU}
.endif
M= ${.CURDIR}/arch/${ARCHSUBDIR}
.if ((${MACHINE_ARCH} == "alpha") || \
(${MACHINE_CPU} == "arm") || \
(${MACHINE_ARCH} == "hppa") || \
(${MACHINE_ARCH} == "i386") || \
(${MACHINE_ARCH} == "m68k") || \
(${MACHINE_CPU} == "mips") || \
(${MACHINE_ARCH} == "powerpc") || \
(${MACHINE_CPU} == "sh3") || \
(${MACHINE_ARCH} == "sparc") || \
(${MACHINE_ARCH} == "sparc64") || \
(${MACHINE_ARCH} == "x86_64") || \
(${MACHINE_ARCH} == "vax")) && \
${MKPIC} != "no"
.if ${CC} == "gcc"
LDFLAGS+= -shared -symbolic -nostartfiles
.else
LDFLAGS+= -shared -Wl,-Bsymbolic -nostartfiles
.endif
LDFLAGS+= -Wl,-static
LDFLAGS+= -Wl,--warn-shared-textrel
CFLAGS+= -fvisibility=hidden
# Adds SRCS, CPPFLAGS, LDFLAGS, etc. Must go first so MD startup source
# is first.
.if exists($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}\"
.else
PROG= ld.elf_so
.endif
CLIBOBJ!= cd ${NETBSDSRCDIR}/lib/libc && ${PRINTOBJDIR}
SRCS+= rtld.c reloc.c symbol.c xmalloc.c xprintf.c debug.c \
map_object.c load.c search.c headers.c paths.c expand.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}/include/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
BINDIR= ${SHLINKINSTALLDIR}
CPPFLAGS+= -DLIBDIR=\"${LIBDIR}\" -D_PATH_RTLD=\"${BINDIR}/${PROG}\"
CPPFLAGS+= -I${.CURDIR} -I.
CPPFLAGS+= -DRTLD_LOADER
CPPFLAGS+= -D_RTLD_SOURCE
CPPFLAGS+= -DCOMBRELOC
#CPPFLAGS+= -DDEBUG
#CPPFLAGS+= -DRTLD_DEBUG
#CPPFLAGS+= -DRTLD_DEBUG_RELOC
DBG= -g
#DBG= -O3 -fomit-frame-pointer
.if ${SHLIBDIR} != ${LIBDIR}
CPPFLAGS+= -DRTLD_DEFAULT_LIBRARY_PATH=\"${SHLIBDIR}:${LIBDIR}\"
.endif
# rtld.c and symbol.c use alloca, so disable SSP warnings.
COPTS.rtld.c+= -Wno-stack-protector
COPTS.symbol.c+=-Wno-stack-protector
LDADD+= -L${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
STRIPFLAG=
.PATH: $M
${PROG}: ${OBJS} ${DPADD}
${_MKMSG_LINK} ${PROG}
${CC} ${LDFLAGS} -o ${PROG} ${OBJS} ${LDADD}
.if ${SHLINKINSTALLDIR} != "/usr/libexec"
SYMLINKS+= ${SHLINKINSTALLDIR}/${PROG} /usr/libexec/${PROG}
.endif
.include <bsd.prog.mk>
.else
MAN= ld.elf_so.1
.include <bsd.man.mk>
.endif