#!/bin/sh

#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident	"@(#)configure.opensparc	1.1	07/10/12 SMI"
#

# Eventually this will be a real GNU autoconfig script
# but for now we hack something for a Sun 64bit SPARC host

# Roll this number if ever you edit this file !
version=1

if [ "$#" = "2" ] ; then
	if [ "$1" = "testconfigure" ] ; then
		if [ "$2" != "$version" ] ; then
			echo configure script in source tree does not match build area configuration
			echo please re-configure your build area
			exit 1
		fi
		echo Configuration is current
		exit 0
	else
		echo Illegal arguments $*
		exit 1
	fi
fi


#
# Now some nasty hacks to figure out what kind of CPU we're on ...
# More of these again when we get Opterons to play with.
#

case `uname -s` in
SunOS)
	case `uname -r` in
	5.8|5.9|5.10*|5.11)
		ostype=solaris9 ;;
	*)
		echo "Unsupported version of Solaris"
		exit 1
		;;
	esac
	case `/bin/isainfo -n` in
	sparcv9)
		case `/bin/isainfo -b` in
		64)
			cputype=sparcv9 ;;
		*)
			echo "64bit sparcv9 mode requried"
			exit 1
			;;
		esac
		;;

	amd64)
		case `/bin/isainfo -b` in
		64)
			cputype=i686 ;;
		*)
			echo "64bit amd64 mode requried"
			exit 1
			;;
		esac
		;;

	i386)
		cputype=i386
		;;

	*)
		echo "Sparc v9 CPU required"
		exit 1
		;;
	esac
	;;
Linux)
	ostype=linux
	cputype=`uname -m`
	;;
*)
	echo "Unable to identify host OS aborting configure"
	exit 1
	;;
esac

processortype=`uname -m`-`uname -p`

echo "Configuring for: OS=$ostype CPU=$cputype"

combined="$ostype-$cputype"
echo $combined

case $combined in
solaris9-sparcv9)
	toolspath="$SUN_STUDIO/bin"
	gnupath="/pkg/gnu/bin"

	mf_as="/usr/ccs/bin/as"
	mf_asflags="-xarch=v9a"
	mf_cc="$toolspath/cc"
	mf_cplus="$toolspath/CC"
	mf_cflags="-xildoff -xO0 -g -xarch=v9 -v -mt -xcode=pic32 -KPIC"
	mf_cflags_nondebug="-xildoff -xspace -xO3 -fast -xarch=v9 -v -mt -xcode=pic32 -KPIC"
	mf_cpp="$gnupath/cpp"
	mf_flex="$gnupath/flex"

	mf_sharedcflags=
	mf_sharedlibflags="-G -L ./plugins"
	mf_ldflags="-xarch=v9 -R'\$\$ORIGIN/plugins'"
	mf_loadlibs="-lpthread -lsocket -lnsl -lm -lc -ldl"

	mf_def="-DHOST_OS_SOLARIS9=1 -DHOST_CPU_SPARC_V9=1"
	vdisk=1
	fpsim=yes
	;;

solaris9-i686)
	toolspath="$SUN_STUDIO/bin"
	gnupath="/pkg/gnu/bin"

	xaf="-xarch=amd64 -xmodel=medium"
	mf_as="/usr/ccs/bin/as"
	mf_asflags="$xaf"
	mf_cc="$toolspath/cc"
	mf_cplus="$toolspath/CC"
	mf_cflags="-xildoff -xbuiltin -xO0 -g $xaf -Ui386 -U__i386 -v -mt"
	mf_cflags_nondebug="-xildoff -xbuiltin -xspace -xO3 -fast $xaf -Ui386 -U__i386 -v -mt"
	mf_cpp="$gnupath/cpp"
	mf_flex="$gnupath/flex"

	mf_sharedcflags="-K pic"
	mf_sharedlibflags="-G -L ./plugins"
	mf_ldflags="$xaf -R'\$\$ORIGIN/plugins'"
	mf_loadlibs="-lpthread -lsocket -lnsl -lm -lc -ldl"

	mf_def="-DHOST_OS_SOLARIS9=1 -DHOST_CPU_I686=1"
	vdisk=0
	fpsim=no
	;;

solaris9-i386)
	toolspath="$SUN_STUDIO/bin"
	gnupath="/pkg/gnu/bin"

	xaf="-xarch=sse2"
	xafs=""
	mf_as="/usr/ccs/bin/as"
	mf_asflags="$xafs"
	mf_cc="$toolspath/cc"
	mf_cplus="$toolspath/CC"
	mf_cflags="-xildoff -xbuiltin -xO0 -g $xaf -v -mt"
	mf_cflags_nondebug="-xildoff -xbuiltin -xspace -xO3 -fast $xaf -v -mt"
	mf_cpp="$gnupath/cpp"
	mf_flex="$gnupath/flex"

	mf_sharedcflags="-K pic"
	mf_sharedlibflags="-G -L ./plugins"
	mf_ldflags="$xaf -R'\$\$ORIGIN/plugins'"
	mf_loadlibs="-lpthread -lsocket -lnsl -lm -lc -ldl"

	mf_def="-DHOST_OS_SOLARIS9=1 -DHOST_CPU_I386=1"
	vdisk=0
	fpsim=no
	;;

linux-i686)
	mf_as="/usr/bin/as"
	mf_asflags=""
	mf_cc="/usr/bin/gcc"
	mf_cplus="/pkg/gnu/bin/g++"
	mf_cflags="-g -Wall"
	mf_cflags_nondebug="-Wall"
	mf_cpp="/usr/bin/cpp"
	mf_flex="/usr/bin/flex"

	mf_sharedcflags=
	mf_sharedlibflags="-shared -fPIC"
	mf_ldflags=-rdynamic
	mf_loadlibs=-lpthread -lm -lc -ldl

	mf_def="-DHOST_OS_LINUX=1 -DHOST_CPU_I686=1"
	vdisk=0
	fpsim=no
	;;

*)
	echo "internal error"
	exit 1
	;;
esac

if [ "$fpsim" = "yes" ]
then
	fpsimcomment=""
else
	fpsimcomment="#"
fi


srcdir=`dirname $0`
targdir=`pwd`

rm -f $targdir/Makefile $targdir/GNUmakefile $targdir/Makefile.tools

cat >> $targdir/GNUmakefile << EOF
# Autogenerated Makefile for simulator - DO NOT EDIT

CONFVER=$version
SRCDIR=$srcdir
DESTDIR=$targdir
OBJDIR=\$(DESTDIR)

#
# By default we build a non-debug version of legion which is optimised
# to run fast but is not suitable for debugging (using gdb or dbx).
# For an Debug version, comment out the NON_DEBUG_BUILD line below.
#
NON_DEBUG_BUILD=yes

#
RELEASE=EXTERNAL

$(RELEASE)_BUILD=true


${fpsimcomment}BUILDFPSIM=yes

#
# By default we let the C preprocessor expand macros as part of
# the compilation process, by for some of the more convoluted files
# it is sometimes useful when debugging to have a pre-processed source
# file to debug against instead of the original macro-laden version.
# define this variable to select this option. By default it is disabled.
#REMOVEMACROS=yes


# ENABLE_MAGIC_TRAPS	Enables the use of what ever magic traps have been
#			defined for your target CPU(s)
#
# PERFORMANCE_CHECK	Enables the generation of per-thread performance
#			statistics gathering. Useful if you want to look at
#			how well the simulator is doing on instruction
#			throughput.
#
# ERROR_INJECTION	Enables the generation of correctible and uncorrectible
#			errors using the error configuration information
#			provided in the .conf file. See README.error_inject
#			for more details.
#
# CONSOLE_RESET		Enable the serial console device to force a reset of
#			any processor within its same domain.
#
# DEBUG_TL_RAISE	Compiling with these flags causes legion to
# DEBUG_GL_RAISE	trash GL or TL levels when the %tl or %gl
#			registers are written with lower values by
#			privileged code. This catches any old
#			remaining assumptions that disrupting
#			traps cannot happen with interrupt enable off.
#			In sun4v the hypervisor can receive such traps
#			so the guest OS needs to be careful. This debug
#			tests the guest's compliance with the new usage
#			rules.
#
# VDISK_SUPPORT		Include memory device 'virtual_disk' support.
#
# ERROR_TRAP_GEN	Value of 1 enables the Error Trap Generation framework.
#			value of 2 also enables legion diagnostic messages for
#			this framework.
#
# WALL_TIME		Includes support for the '--walltime' option which
#			scales TICK/STICK to the hosts TOD instead of
#			the default case of legion's TOD being scaled to
#			TICK(STICK) that tracks simulated instruction count.
#
# HYPERPRIVILEGED_USE_WARN When not zero, enables EXEC_WARNINGs when some
#			instruction or feature is used unexpectedly in
#			hyperprivileged mode, eg save/restore
#
# VERBOSE		If defined, legion will print all messages, otherwise
#			only essential messages will be printed. The user can
#			override this using the -v or --verbose option.
#
# INTERNAL_BUILD	Is used to control whether something should be built
#                       for Internal use only.
#
#############################################################################


#
# INTERNAL used for Sun Development projects
#
INTERNAL_DEFINES =
INTERNAL_DEFINES += -DINTERNAL_BUILD=1
INTERNAL_DEFINES += -DVERBOSE=1
INTERNAL_DEFINES += -DERROR_TRAP_GEN=0
INTERNAL_DEFINES += -DPERFORMANCE_CHECK=0
INTERNAL_DEFINES += -DERROR_INJECTION=0
INTERNAL_DEFINES += -DHYPERPRIVILEGED_USE_WARN=0
INTERNAL_DEFINES += -DFAKE_SAM=1
INTERNAL_DEFINES += -DDEBUG_SAM_MODULES=0
INTERNAL_DEFINES += -DROCK_ERRATA_8BYTE_ALIGN=1

#
# EXTERNAL used for OpenSparc Release
#
EXTERNAL_DEFINES =
EXTERNAL_DEFINES += -DINTERNAL_BUILD=0
EXTERNAL_DEFINES += -DVERBOSE=0

#
# COMMON Defines used for all builds
#
COMMON_DEFINES = $mf_def
COMMON_DEFINES += -DDEBUG=1
#COMMON_DEFINES += -DNDEBUG=1
COMMON_DEFINES += -DCONSOLE_RESET=1
COMMON_DEFINES += -DDEBUG_TL_RAISE=0
COMMON_DEFINES += -DDEBUG_GL_RAISE=0
COMMON_DEFINES += -DVDISK_SUPPORT=$vdisk
COMMON_DEFINES += -DWALL_TIME=1
COMMON_DEFINES += -DENABLE_MAGIC_TRAPS=1

DEFINES = $($(RELEASE)_DEFINES) $(COMMON_DEFINES)


ifdef NON_DEBUG_BUILD
	#NON-DEBUG Build - faster, optimised, not suitable for debugger use
	CFLAGS=$mf_cflags_nondebug -DNON_DEBUG_BUILD=1
	ifndef INTERNAL_BUILD
		# strip symbols for external release
		CFLAGS+= -s
	endif
		
else
	#DEBUG Build - slower, needed for gdb/dbx debugging
	CFLAGS=$mf_cflags -DDEBUG_BUILD=1
endif


#
# include the paths to all our tools
#
include ./Makefile.tools

#
# Additional flags and options
#
ASFLAGS=$mf_asflags
SHAREDLIB_CFLAGS=$mf_sharedcflags
SHAREDLIB_FLAGS=\$(SHAREDLIB_CFLAGS) $mf_sharedlibflags
LDFLAGS=$mf_ldflags
LOADLIBS=$mf_loadlibs


include $srcdir/Makefile.top
EOF

cat >> $targdir/Makefile.tools << EOF
#
# Generic paths to compilers/tools
#
# DO NOT EDIT THIS FILE:
# (any changes will be overwritten the next time the configure script is run)
#
AS=$mf_as
CC=$mf_cc
CPLUS=$mf_cplus

CPP=$mf_cpp
LEX=$mf_flex

LN=/usr/bin/ln
CSCOPE=$SUN_STUDIO/bin/cscope

MAKEDEPEND=/usr/openwin/bin/makedepend -f .depend

EOF

cat >> $targdir/Makefile << EOF
all clean:
	@echo 1>&2 ""
	@echo 1>&2 ""
	@echo 1>&2 "\t\tUse GNU make (/pkg/gnu/bin/gmake)"
	@echo 1>&2 ""
	@echo 1>&2 ""
	@env PATH=/pkg/gnu/bin:/pkg/local/bin:\${PATH} gmake \${MFLAGS} \$@
EOF

rm -f $targdir/dumbblue.conf && ln -s $srcdir/config/dumbblue.conf $targdir/dumbblue.conf
rm -f $targdir/hostnative_asm.S && ln -s $srcdir/host/${cputype}native.S $targdir/hostnative_asm.S
rm -f $targdir/hostnative.c && ln -s $srcdir/host/${cputype}native.c $targdir/hostnative.c
rm -f $targdir/hostnative_ua200x.c
if [ "$fpsim" = "yes" ]
then
	ln -s $srcdir/host/${cputype}native_ua200x.c $targdir/hostnative_ua200x.c
fi
rm -f $targdir/hostcpu.h && ln -s $srcdir/host/${cputype}.h $targdir/hostcpu.h
rm -f $targdir/hostos.h && ln -s $srcdir/host/${ostype}.h $targdir/hostos.h