#
# 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 2006 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident	"%Z%%M%	%I%	%E% SMI"
#

# The link-editor related source files and Makefile files are normally unified
# across all presently maintained release gates.  However, some of the compiler
# pre-processor flags, linker flags are different among the releases.  This
# file is used to specify such flags. 
# 
# This file is included by the ./Makefile.com.
# 
# This file should be the only file which is different among the presently
# maintained release workspaces and the files that generate the link-editors
# and related tools.

#
# CPPFEATUREMACROS provides for selectively turning on/off features within the
# build of ld.so.1 and liblddbg.so.
#
# Current values for ld.so.1 are:
#
#	LD_BREADTH_DISABLED
#		per bug id 4313765, the LD_BREADTH= environment variable is no
#		longer checked.  However, on older releases we still want to
#		keep this check valid.
#
#	EXPAND_RELATIVE
#		per bug id 4336980 (and 4336878), relative path expansion is
#		insured at process startup.  This implementation can come at
#		some cost unless the corresponding getcwd() implementation from
#		libc_pic.a is also available.  On older releases defer any
#		relative pathname expansion until it is required.
#
#	ISSOLOAD_BASENAME_DISABLED
#		The bugfix for bug#4469400 updates the logic by which
#		shared objects are loaded into memory (and makes it
#		more precise).  However - this update to logic can
#		mess up the loading of objects which have a dependency
#		on both '/usr/lib/lwp/libthread.so.1' and
#		'/usr/lib/libthread.so.1'.  The error that occurs is that
#		both libraries are loaded into memory - which doesn't
#		work out very well.  This fix re-enables the `loose'
#		logic which was implemented on older releases to avoid
#		exposing problems with multiple libthreads.  Since Soliars9
#		again only has one libthread - we can use the more precise
#		logic.
#
#	SIEBEL_DISABLE
#		Prior to Solaris 10, bug fixes 4651709 and 4651493 were deter-
#		mined to be inappropriate for patch releases as they broke the
#		Siebel server.  Siebel agree to fix their code in preparation
#		for these changes to become default in Solaris 10.  Users who
#		want these fixes in patch releases can set LD__FIX__1.
#
#
# Current value for liblddbg.so is:
#
#	DEMANGLE
#		enable use of the "demangle" debug token.  Old versions of the
#		demangle library libdemangle.so.1 used an excessive amount of
#		stack space that could cause debugging a threaded application
#		(with say LD_DEBUG=symbols,demangle) to segv because of an
#		exhausted stack.  See 4376081.  DEMANGLE should not be enabled
#		for patch builds.
#
#		Note that demangling support within liblddbg.so.1 is always
#		available, as tools such as elfdump(1) and pvs(1) may call this
#		directly.  These tools aren't threaded, and thus don't expose
#		the problems raised by enabling ld.so.1's debugging output.
#
#
# Although most files are unified among on10-gate, on81-patch, and on28-patch
# gates, some files in libld and rtld need to use #ifdef to distinguish between
# the patch release, and for the packages targeting to the pre-libc/libthread
# unified environment.  These values are available for CPPFLAGS:
#	
#	SGS_PRE_UNIFIED_PROCESS
#
#		is set if the target release is for pre-libc/libthread unified
#		environment. This is used for rtld and crle.

#
# Common Macro definitions
#
VAR_CPPFLAGS=
VAR_XFFLAG=		-xF=%all

VAR_LINTFLAGS64=	-Xarch=$(MACH64:sparcv9=v9)
VAR_I386_ARCH=		intel

VAR_PLAT_sparc=		sparc
VAR_PLAT_i386=		intel/ia32
VAR_PLAT_amd64=		intel/amd64

VAR_POUND_1=
VAR_POUND_2=		$(POUND_SIGN)
VAR_POUND_3=		$(POUND_SIGN)

#
# VAR_AVLDIR - directory to find avl.c in.
#
# The avl.c is under usr/src/common/avl in Solaris10 (and later), but
# in earlier releases it is not present (problem to be solved).
#
#
# The avl.h and avl_impl.h are under usr/src/uts/common/sys in Solaris10
# (and later).  They are under usr/src/cmd/sgs/tools/common/sys in 
# Solaris 9 and earlier.
#
# For Solaris 9 and earlier releases, we will have our own copy of the
# files avl.c, avl.h and avl_impl.h until these files are back ported into
# the system.
#
VAR_AVLDIR=		$(SRCBASE)/common/avl
VAR_AVLINCDIR=

#
# ld
#
VAR_LD_NATIVE_LLDLIBS=
VAR_LD_LLDFLAGS=	'-R$$ORIGIN/../../../lib'
VAR_LD_LLDFLAGS64 =	'-R$$ORIGIN/../../../../lib/$(MACH64)'

#
# on 5.10 we no longer link against libdl - However we still
# need to link against it when building the SUNWonld package (which
# may run on 5.9 or 5.8 systems).  
#
# Below are two macros - they should be toggled one way or the other
# depending upon whether or not the base build provides '-ldl' or
# the build of SUNWonld does.
#
VAR_PKG_DL_LIB =	-ldl
VAR_DL_LIB =

#
# elfdump
#
VAR_ELFDUMP_LLDFLAGS=	'-R$$ORIGIN/../../../lib'
VAR_ELFDUMP_LLDFLAGS64 ='-R$$ORIGIN/../../../../lib/$(MACH64)'

#
# lddstub
#
VAR_LDDSTUB_INTERP=	-I'$$ORIGIN/ld.so.1'

#
# libconv
#
VAR_LIBCONV_CPPFLAGS=

#
# libdl
#
VAR_LIBDL_ROOT4LINK_LIBLINKPATH=	../../lib/
VAR_LIBDL_ETCDYNLIB=

#
# libelf
#
VAR_LIBELF_LDLIBS=
VAR_LIBELF_ROOTDEMODIR_DIRMODE=	755

#
# libld
#
VAR_LIBLD_CPPFLAGS=		$(VAR_COM_CPPFLAGS) \
				$(VAR_AVLINCDIR)
VAR_LIBLD_64_ROOTFS_LIBDIR=	$(ROOT)/lib/$(MACH64)

#
# Tools
#
VAR_TOOLS_CPPFLAGS=		$(VAR_AVLINCDIR)

#
# liblddbg
#
VAR_LIBLDDBG_V9_ROOTFS_LIBDIR=	$(ROOT)/lib/$(MACH64)
VAR_LIBLDDBG_CPPFLAGS=-DDEMANGLE

#
# librtld_db
#
VAR_LIBRTLD_DB_RDB_DEMO_LINTFLAGS64=	$(VAR_LINTFLAGS64)

#
# mapfiles
#
VAR_MAPFILES_FILES=	$(ROOTDIR)/map.default $(ROOTDIR)/map.pagealign

#
# rtld
#
VAR_RTLD_CPICLIB=	-L ../../../../lib/libc/$(MACH)
VAR_RTLD_CPICLIB64=	-L ../../../../lib/libc/$(MACH64)
VAR_RTLD_SONAME=	/lib/ld.so.1
VAR_RTLD_V9_SONAME=	/lib/sparcv9/ld.so.1

VAR_RTLD_ETCDYNLIB=
VAR_RTLD_CPPFEATUREMACROS= \
			-DLD_BREADTH_DISABLED \
			-DEXPAND_RELATIVE \
			-DISSOLOAD_BASENAME_DISABLED
VAR_RTLD_CPPFLAGS=	$(VAR_AVLINCDIR)
VAR_RTLD_EXTRASUBDIRS=	mdbmod