+
+# The MULTI generator can combine several simulation engines into one.
+# executable. A configuration which uses the MULTI should set two
+# variables: ${sim_multi_configs} and ${sim_multi_default}.
+#
+# ${sim_multi_configs} is the list of engines to build. Each
+# space-separated entry has the form NAME:MACHINE:FILTER:BFDMACHS,
+# where:
+#
+# - NAME is a C-compatible prefix for the engine,
+# - MACHINE is a -M argument,
+# - FILTER is a -F argument, and
+# - BFDMACHS is a comma-separated list of bfd machines that the
+# simulator can run.
+#
+# Each entry will have a separate simulation engine whose prefix is
+# m32<NAME>. If the machine list includes "mips16", there will also
+# be a mips16 engine, prefix m16<NAME>. The mips16 engine will be
+# generated using the same machine list as the 32-bit version,
+# but the filter will be "16" instead of FILTER.
+#
+# The simulator compares the bfd mach against BFDMACHS to decide
+# which engine to use. Entries in BFDMACHS should be bfd_mach
+# values with "bfd_mach_" removed. ${sim_multi_default} says
+# which entry should be the default.
+if test ${sim_gen} = MULTI; then
+
+ # Simple sanity check.
+ if test -z "${sim_multi_configs}" || test -z "${sim_multi_default}"; then
+ { echo "configure: error: Error in configure.in: MULTI simulator not set up correctly" 1>&2; exit 1; }
+ fi
+
+ # Start in a known state.
+ rm -f multi-include.h multi-run.c
+ sim_multi_flags=
+ sim_multi_src=
+ sim_multi_obj=multi-run.o
+ sim_multi_igen_configs=
+ sim_seen_default=no
+
+ cat << __EOF__ > multi-run.c
+/* Main entry point for MULTI simulators.
+ Copyright (C) 2003 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ --
+
+ This file was generated by sim/mips/configure. */
+
+#include "sim-main.h"
+#include "multi-include.h"
+
+#define SD sd
+#define CPU cpu
+
+void
+sim_engine_run (SIM_DESC sd,
+ int next_cpu_nr,
+ int nr_cpus,
+ int signal) /* ignore */
+{
+ int mach;
+
+ if (STATE_ARCHITECTURE (sd) == NULL)
+ mach = bfd_mach_${sim_multi_default};
+ else
+ mach = STATE_ARCHITECTURE (SD)->mach;
+
+ switch (mach)
+ {
+__EOF__
+
+ for fc in ${sim_multi_configs}; do
+
+ # Split up the entry. ${c} contains the first three elements.
+ # Note: outer sqaure brackets are m4 quotes.
+ c=`echo ${fc} | sed 's/:[^:]*$//'`
+ bfdmachs=`echo ${fc} | sed 's/.*://'`
+ name=`echo ${c} | sed 's/:.*//'`
+ machine=`echo ${c} | sed 's/.*:\(.*\):.*/\1/'`
+ filter=`echo ${c} | sed 's/.*://'`
+
+ # Build the following lists:
+ #
+ # sim_multi_flags: all -M and -F flags used by the simulator
+ # sim_multi_src: all makefile-generated source files
+ # sim_multi_obj: the objects for ${sim_multi_src}
+ # sim_multi_igen_configs: igen configuration strings.
+ #
+ # Each entry in ${sim_multi_igen_configs} is a prefix (m32
+ # or m16) followed by the NAME, MACHINE and FILTER part of
+ # the ${sim_multi_configs} entry.
+ sim_multi_flags="${sim_multi_flags} -F ${filter} -M ${machine}"
+
+ # Check whether mips16 handling is needed.
+ case ${c} in
+ *:*mips16*:*)
+ # Run igen twice, once for normal mode and once for mips16.
+ ws="m32 m16"
+
+ # The top-level function for the mips16 simulator is
+ # in a file m16${name}_run.c, generated by the
+ # tmp-run-multi Makefile rule.
+ sim_multi_src="${sim_multi_src} m16${name}_run.c"
+ sim_multi_obj="${sim_multi_obj} m16${name}_run.o"
+ sim_multi_flags="${sim_multi_flags} -F 16"
+ ;;
+ *)
+ ws=m32
+ ;;
+ esac
+
+ # Now add the list of igen-generated files to ${sim_multi_src}
+ # and ${sim_multi_obj}.
+ for w in ${ws}; do
+ for base in engine icache idecode model semantics support; do
+ sim_multi_src="${sim_multi_src} ${w}${name}_${base}.c"
+ sim_multi_src="${sim_multi_src} ${w}${name}_${base}.h"
+ sim_multi_obj="${sim_multi_obj} ${w}${name}_${base}.o"
+ done
+ sim_multi_igen_configs="${sim_multi_igen_configs} ${w}${c}"
+ done
+
+ # Add an include for the engine.h file. This file declares the
+ # top-level foo_engine_run() function.
+ echo "#include \"${w}${name}_engine.h\"" >> multi-include.h
+
+ # Add case statements for this engine to sim_engine_run().
+ for mach in `echo ${bfdmachs} | sed 's/,/ /g'`; do
+ echo " case bfd_mach_${mach}:" >> multi-run.c
+ if test ${mach} = ${sim_multi_default}; then
+ echo " default:" >> multi-run.c
+ sim_seen_default=yes
+ fi
+ done
+ echo " ${w}${name}_engine_run (sd, next_cpu_nr, nr_cpus, signal);" \
+ >> multi-run.c
+ echo " break;" >> multi-run.c
+ done
+
+ # Check whether we added a 'default:' label.
+ if test ${sim_seen_default} = no; then
+ { echo "configure: error: Error in configure.in: \${sim_multi_configs} doesn't have an entry for \${sim_multi_default}" 1>&2; exit 1; }
+ fi
+
+ cat << __EOF__ >> multi-run.c
+ }
+}
+
+int
+mips_mach_multi (SIM_DESC sd)
+{
+ if (STATE_ARCHITECTURE (sd) == NULL)
+ return bfd_mach_${sim_multi_default};
+
+ switch (STATE_ARCHITECTURE (SD)->mach)
+ {
+__EOF__
+
+ # Add case statements for this engine to mips_mach_multi().
+ for fc in ${sim_multi_configs}; do
+
+ # Split up the entry. ${c} contains the first three elements.
+ # Note: outer sqaure brackets are m4 quotes.
+ c=`echo ${fc} | sed 's/:[^:]*$//'`
+ bfdmachs=`echo ${fc} | sed 's/.*://'`
+
+ for mach in `echo ${bfdmachs} | sed 's/,/ /g'`; do
+ echo " case bfd_mach_${mach}:" >> multi-run.c
+ done
+ done
+
+ cat << __EOF__ >> multi-run.c
+ return (STATE_ARCHITECTURE (SD)->mach);
+ default:
+ return bfd_mach_${sim_multi_default};
+ }
+}
+__EOF__
+
+ SIM_SUBTARGET="$SIM_SUBTARGET -DMIPS_MACH_MULTI"
+else
+ # For clean-extra
+ sim_multi_src=doesnt-exist.c
+
+ if test x"${sim_mach_default}" = x""; then
+ { echo "configure: error: Error in configure.in: \${sim_mach_default} not defined" 1>&2; exit 1; }
+ fi
+ SIM_SUBTARGET="$SIM_SUBTARGET -DMIPS_MACH_DEFAULT=bfd_mach_${sim_mach_default}"
+fi
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