#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#

#
# Copyright (c) 1994, 2010, Oracle and/or its affiliates. All rights reserved.
# Copyright (c) 2018, Joyent, Inc.
# Copyright 2019 OmniOS Community Edition (OmniOSce) Association.
#

RTLD=		ld.so.1

AVLOBJ=		avl.o
DTROBJ=		dtrace_data.o
SGSCOMMONOBJ=	alist.o strhash.o
BLTOBJ=		msg.o
ELFCAPOBJ=	elfcap.o
OBJECTS=	$(BLTOBJ) \
		$(AVLOBJ) \
		$(DTROBJ) \
		$(SGSCOMMONOBJ) \
		$(ELFCAPOBJ) \
		$(P_ASOBJS)   $(P_COMOBJS)   $(P_MACHOBJS)   $(G_MACHOBJS)  \
		$(S_ASOBJS)   $(S_COMOBJS)   $(S_MACHOBJS)   $(CP_MACHOBJS)

COMOBJS=	$(P_COMOBJS)  $(S_COMOBJS)
ASOBJS=		$(P_ASOBJS)   $(S_ASOBJS)
MACHOBJS=	$(P_MACHOBJS) $(S_MACHOBJS)
NOCTFOBJS=	$(ASOBJS)

include		$(SRC)/lib/Makefile.lib
include		$(SRC)/cmd/sgs/Makefile.com

SRCDIR =	../common
ELFCAP =	$(SRC)/common/elfcap

PLAT_i386 =	intel/ia32
PLAT_amd64 =	intel/amd64
PLAT_sparc =	sparc
PLAT = $(PLAT_$(BASEPLAT))

# DTrace needs an executable data segment.
MAPFILE.NED=

MAPFILES +=	$(MAPFILE-ORDER)

# For the libc/libthread unified world:
# This library needs to be placed in /lib to allow
# dlopen() functionality while in single-user mode.
ROOTFS_DYNLIB=	$(RTLD:%=$(ROOTFS_LIBDIR)/%)
ROOTFS_DYNLIB64=	$(RTLD:%=$(ROOTFS_LIBDIR64)/%)

# For the libc/libthread separated world:
# A version of this library needs to be placed in /etc/lib to allow
# dlopen() functionality while in single-user mode.
ETCLIBDIR=	$(ROOT)/etc/lib
ETCDYNLIB=	$(RTLD:%=$(ETCLIBDIR)/%)

ROOTDYNLIB=	$(RTLD:%=$(ROOTFS_LIBDIR)/%)
ROOTDYNLIB64=	$(RTLD:%=$(ROOTFS_LIBDIR64)/%)

COMPATLINKS=	etc/lib/ld.so.1 \
		usr/lib/ld.so.1
COMPATLINKS64=	usr/lib/$(MACH64)/ld.so.1

$(ROOT)/etc/lib/ld.so.1 := COMPATLINKTARGET= ../../lib/ld.so.1
$(ROOT)/usr/lib/ld.so.1 := COMPATLINKTARGET= ../../lib/ld.so.1
$(ROOT)/usr/lib/$(MACH64)/ld.so.1 := \
	COMPATLINKTARGET= ../../../lib/$(MACH64)/ld.so.1

FILEMODE =	755

CPPFLAGS +=	-I$(SRC)/lib/libc/inc \
		-I$(SRC)/uts/common/krtld \
		-I$(SRC)/uts/$(PLAT) \
		-I$(SRC)/uts/$(PLAT)/krtld \
		-I$(SRC)/common/sgsrtcid \
		-I$(ELFCAP) \
		 $(CPPFEATUREMACROS)

ASFLAGS +=	-D_ASM $(CPPFLAGS)
ASFLAGS64 +=	-D_ASM $(CPPFLAGS)
LDLIB =		-L ../../libld/$(MACH)
RTLDLIB =	-L ../../librtld/$(MACH)

CERRWARN +=	$(CNOWARN_UNINIT)
CERRWARN +=	-_gcc=-Wno-unused-variable

# not linted
SMATCH=off

# These definitions require that libc be built in the same workspace
# as the run-time linker and before the run-time linker is built.
# This is required for the system's self-consistency in any case.
CPICLIB =	-L $(SRC)/lib/libc/$(MACH)
CPICLIB64 =	-L $(SRC)/lib/libc/$(MACH64)
CLIB =		-lc_pic

LDLIBS +=	$(CONVLIBDIR) -lconv \
		$(CPICLIB) $(CLIB) \
		$(LDDBGLIBDIR) -llddbg \
		$(RTLDLIB) -lrtld \
		$(LDLIB) -lld

DYNFLAGS +=	-i -e _rt_boot $(VERSREF) $(ZNODLOPEN) \
		$(ZINTERPOSE) -zdtrace=dtrace_data '-R$$ORIGIN'

BLTDEFS=	msg.h
BLTDATA=	msg.c
BLTMESG=	$(SGSMSGDIR)/rtld

BLTFILES=	$(BLTDEFS) $(BLTDATA) $(BLTMESG)

SGSMSGCOM=	../common/rtld.msg
SGSMSG32=	../common/rtld.32.msg
SGSMSG64=	../common/rtld.64.msg
SGSMSGSPARC=	../common/rtld.sparc.msg
SGSMSGSPARC32=	../common/rtld.sparc32.msg
SGSMSGSPARC64=	../common/rtld.sparc64.msg
SGSMSGINTEL=	../common/rtld.intel.msg
SGSMSGINTEL32=	../common/rtld.intel32.msg
SGSMSGINTEL64=	../common/rtld.intel64.msg
SGSMSGCHK=	../common/rtld.chk.msg
SGSMSGTARG=	$(SGSMSGCOM)
SGSMSGALL=	$(SGSMSGCOM) $(SGSMSG32) $(SGSMSG64) \
		$(SGSMSGSPARC) $(SGSMSGSPARC32) $(SGSMSGSPARC64) \
		$(SGSMSGINTEL) $(SGSMSGINTEL32) $(SGSMSGINTEL64)

SGSMSGFLAGS1=	$(SGSMSGFLAGS) -m $(BLTMESG)
SGSMSGFLAGS2=	$(SGSMSGFLAGS) -h $(BLTDEFS) -d $(BLTDATA) -n rtld_msg

SRCS=		$(AVLOBJ:%.o=$(SRC)/common/avl/%.c) \
		$(DTROBJ:%.o=$(SRC)/common/dtrace/%.c) \
		$(SGSCOMMONOBJ:%.o=$(SGSCOMMON)/%.c) \
		$(COMOBJS:%.o=../common/%.c)  $(MACHOBJS:%.o=%.c) $(BLTDATA) \
		$(G_MACHOBJS:%.o=$(SRC)/uts/$(PLAT)/krtld/%.c) \
		$(CP_MACHOBJS:%.o=../$(MACH)/%.c) \
		$(ASOBJS:%.o=%.S)

CLEANFILES +=	$(CRTS) $(BLTFILES)
CLOBBERFILES +=	$(RTLD)

#
# We cannot currently enable the stack protector for rtld as it runs
# before libc initializes, which is where we always enable the stack
# protector values. Because rtld is likely on an alternate link map and
# links in the relevant portions of libc through libc_pic.a, there is
# probably a path to enabling an rtld specific version of the stack
# protector.
#
# As a result, this currently disables the stack protector in two
# related targets which really could use it. These are libconv and libc.
# Both of these end up building position-independent archive libraries
# that are directly linked into rtld. This situation can and should be
# improved.
#
STACKPROTECT = none