sim/mips/acinclude.m4 - binutils-gdb - Git at Google


            
            dnl Copyright (C) 2005-2023 Free Software Foundation, Inc.

            
            dnl

            
            dnl This program is free software; you can redistribute it and/or modify

            
            dnl it under the terms of the GNU General Public License as published by

            
            dnl the Free Software Foundation; either version 3 of the License, or

            
            dnl (at your option) any later version.

            
            dnl

            
            dnl This program is distributed in the hope that it will be useful,

            
            dnl but WITHOUT ANY WARRANTY; without even the implied warranty of

            
            dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

            
            dnl GNU General Public License for more details.

            
            dnl

            
            dnl You should have received a copy of the GNU General Public License

            
            dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.

            
            dnl

            
            dnl NB: This file is included in sim/configure, so keep settings namespaced.


            dnl DEPRECATED

            
            dnl

            
            dnl Instead of defining a `subtarget' macro, code should be checking the value

            
            dnl of {STATE,CPU}_ARCHITECTURE to identify the architecture dnl in question.

            
            AC_MSG_CHECKING([mips subtarget])

            
            SIM_MIPS_SUBTARGET=

            
            AS_CASE([${target}],

            
              [mips64vr*-*-*],  [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"],

            
              [mips*tx39*],     [SIM_MIPS_SUBTARGET="-DSUBTARGET_R3900=1"],

            
              [mips*-sde-elf*], [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"],

            
              [mips*-mti-elf*], [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"],

            
              [mipsisa32*-*-*], [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"],

            
              [mipsisa64*-*-*], [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"])

            
            AC_MSG_RESULT([${SIM_MIPS_SUBTARGET:-none}])

            
            AC_SUBST(SIM_MIPS_SUBTARGET)


            dnl Select the bitsize of the target.

            
            AC_MSG_CHECKING([mips bitsize])

            
            SIM_MIPS_BITSIZE=64

            
            AS_CASE([${target}],

            
              [mips*-sde-elf*], [SIM_MIPS_BITSIZE=64],

            
              [mips*-mti-elf*], [SIM_MIPS_BITSIZE=64],

            
              [mips64*-*-*],    [SIM_MIPS_BITSIZE=64],

            
              [mips16*-*-*],    [SIM_MIPS_BITSIZE=64],

            
              [mipsisa32*-*-*], [SIM_MIPS_BITSIZE=32],

            
              [mipsisa64*-*-*], [SIM_MIPS_BITSIZE=64],

            
              [mips*-*-*],      [SIM_MIPS_BITSIZE=32])

            
            AC_MSG_RESULT([$SIM_MIPS_BITSIZE])

            
            AC_SUBST(SIM_MIPS_BITSIZE)


            dnl Select the floating hardware support of the target.

            
            AC_MSG_CHECKING([mips fpu bitsize])

            
            SIM_MIPS_FPU_BITSIZE=64

            
            AS_CASE([${target}],

            
              [mips*tx39*],     [SIM_MIPS_FPU_BITSIZE=32],

            
              [mips*-sde-elf*], [SIM_MIPS_FPU_BITSIZE=64],

            
              [mips*-mti-elf*], [SIM_MIPS_FPU_BITSIZE=64],

            
              [mipsisa32*-*-*], [SIM_MIPS_FPU_BITSIZE=64],

            
              [mipsisa64*-*-*], [SIM_MIPS_FPU_BITSIZE=64],

            
              [mips*-*-*],      [SIM_MIPS_FPU_BITSIZE=32])

            
            AC_MSG_RESULT([$SIM_MIPS_FPU_BITSIZE])

            
            AC_SUBST(SIM_MIPS_FPU_BITSIZE)


            dnl Select the IGEN architecture.

            
            SIM_MIPS_GEN=SINGLE

            
            sim_mips_single_machine="-M mipsIV"

            
            sim_mips_m16_machine="-M mips16,mipsIII"

            
            sim_mips_single_filter="32,64,f"

            
            sim_mips_m16_filter="16"

            
            AS_CASE([${target}],

            
              [mips*tx39*], [dnl

            
                SIM_MIPS_GEN=SINGLE

            
                sim_mips_single_filter="32,f"

            
                sim_mips_single_machine="-M r3900"],

            
              [mips64vr41*], [dnl

            
                SIM_MIPS_GEN=M16

            
                sim_mips_single_machine="-M vr4100"

            
                sim_mips_m16_machine="-M vr4100"],

            
              [mips64*], [dnl

            
                SIM_MIPS_GEN=MULTI

            
                sim_mips_multi_configs="\

            
                  vr4100:mipsIII,mips16,vr4100:32,64:mips4100,mips4111\

            
                  vr4120:mipsIII,mips16,vr4120:32,64:mips4120\

            
                  vr5000:mipsIV:32,64,f:mips4300,mips5000,mips8000\

            
                  vr5400:mipsIV,vr5400:32,64,f:mips5400\

            
                  vr5500:mipsIV,vr5500:32,64,f:mips5500"

            
                sim_mips_multi_default=mips5000],

            
              [mips*-sde-elf* | mips*-mti-elf*], [dnl

            
                SIM_MIPS_GEN=MULTI

            
                sim_mips_multi_configs="\

            
                  micromips:micromips64,micromipsdsp:32,64,f:mips_micromips\

            
                  mipsisa64r2:mips64r2,mips16,mips16e,mdmx,dsp,dsp2,mips3d,smartmips:32,64,f:mipsisa32r2,mipsisa64r2,mipsisa32r5,mipsisa64r5\

            
                  mipsisa64r6:mips64r6:32,64,f:mipsisa32r6,mipsisa64r6"

            
                sim_mips_multi_default=mipsisa64r2],

            
              [mips16*], [dnl

            
                SIM_MIPS_GEN=M16],

            
              [mipsisa32r2*], [dnl

            
                SIM_MIPS_GEN=MULTI

            
                sim_mips_multi_configs="\

            
                  micromips:micromips32,micromipsdsp:32,f:mips_micromips\

            
                  mips32r2:mips32r2,mips3d,mips16,mips16e,mdmx,dsp,dsp2,smartmips:32,f:mipsisa32r2"

            
                sim_mips_multi_default=mipsisa32r2],

            
              [mipsisa32r6*], [dnl

            
                SIM_MIPS_GEN=SINGLE

            
                sim_mips_single_machine="-M mips32r6"

            
                sim_mips_single_filter="32,f"],

            
              [mipsisa32*], [dnl

            
                SIM_MIPS_GEN=M16

            
                sim_mips_single_machine="-M mips32,mips16,mips16e,smartmips"

            
                sim_mips_m16_machine="-M mips16,mips16e,mips32"

            
                sim_mips_single_filter="32,f"],

            
              [mipsisa64r2*], [dnl

            
                SIM_MIPS_GEN=M16

            
                sim_mips_single_machine="-M mips64r2,mips3d,mips16,mips16e,mdmx,dsp,dsp2"

            
                sim_mips_m16_machine="-M mips16,mips16e,mips64r2"],

            
              [mipsisa64r6*], [dnl

            
                SIM_MIPS_GEN=SINGLE

            
                sim_mips_single_machine="-M mips64r6"],

            
              [mipsisa64sb1*], [dnl

            
                SIM_MIPS_GEN=SINGLE

            
                sim_mips_single_machine="-M mips64,mips3d,sb1"],

            
              [mipsisa64*], [dnl

            
                SIM_MIPS_GEN=M16

            
                sim_mips_single_machine="-M mips64,mips3d,mips16,mips16e,mdmx"

            
                sim_mips_m16_machine="-M mips16,mips16e,mips64"],

            
              [mips*lsi*], [dnl

            
                SIM_MIPS_GEN=M16

            
                sim_mips_single_machine="-M mipsIII,mips16"

            
                sim_mips_m16_machine="-M mips16,mipsIII"

            
                sim_mips_single_filter="32,f"],

            
              [mips*], [dnl

            
                SIM_MIPS_GEN=SINGLE

            
                sim_mips_single_filter="32,f"])


            dnl The MULTI generator can combine several simulation engines into one.

            
            dnl executable.  A configuration which uses the MULTI should set two

            
            dnl variables: ${sim_mips_multi_configs} and ${sim_mips_multi_default}.

            
            dnl

            
            dnl ${sim_mips_multi_configs} is the list of engines to build.  Each

            
            dnl space-separated entry has the form NAME:MACHINE:FILTER:BFDMACHS,

            
            dnl where:

            
            dnl

            
            dnl - NAME is a C-compatible prefix for the engine,

            
            dnl - MACHINE is a -M argument,

            
            dnl - FILTER is a -F argument, and

            
            dnl - BFDMACHS is a comma-separated list of bfd machines that the

            
            dnl     simulator can run.

            
            dnl

            
            dnl Each entry will have a separate simulation engine whose prefix is

            
            dnl m32<NAME>.  If the machine list includes "mips16", there will also

            
            dnl be a mips16 engine, prefix m16<NAME>.  The mips16 engine will be

            
            dnl generated using the same machine list as the 32-bit version,

            
            dnl but the filter will be "16" instead of FILTER.

            
            dnl

            
            dnl The simulator compares the bfd mach against BFDMACHS to decide

            
            dnl which engine to use.  Entries in BFDMACHS should be bfd_mach

            
            dnl values with "bfd_mach_" removed.  ${sim_mips_multi_default} says

            
            dnl which entry should be the default.

            
            SIM_MIPS_IGEN_ITABLE_FLAGS=

            
            SIM_MIPS_MULTI_SRC=

            
            SIM_MIPS_MULTI_OBJ=

            
            SIM_MIPS_MULTI_IGEN_CONFIGS=

            
            AS_VAR_IF([SIM_MIPS_GEN], ["MULTI"], [dnl

            
              dnl Verify the AS_CASE logic above is setup correctly.

            
              AS_IF([test -z "${sim_mips_multi_configs}" || test -z "${sim_mips_multi_default}"], [dnl

            
                AC_MSG_ERROR(Error in configure.ac: MULTI simulator not set up correctly)])


              dnl Start in a known state.

            
              AS_MKDIR_P([mips])

            
              rm -f mips/multi-include.h mips/multi-run.c

            
              sim_mips_seen_default=no


              cat << __EOF__ > mips/multi-run.c

            
            /* Main entry point for MULTI simulators.

            
               Copyright (C) 2003-2023 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 3 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, see <http://www.gnu.org/licenses/>.


               --


               This file was generated by sim/mips/configure.  */


            #include "sim-main.h"

            
            #include "multi-include.h"

            
            #include "bfd/elf-bfd.h"

            
            #include "bfd/elfxx-mips.h"

            
            #include "elf/mips.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_mips_multi_default};

            
              else if (elf_elfheader (STATE_PROG_BFD (sd))->e_flags

            
            	   & EF_MIPS_ARCH_ASE_MICROMIPS)

            
                mach = bfd_mach_mips_micromips;

            
              else

            
              {

            
                 mach = _bfd_elf_mips_mach (elf_elfheader (STATE_PROG_BFD (sd))->e_flags);

            
                 if (!mach)

            
                   mach = STATE_ARCHITECTURE (SD)->mach;

            
              }


              switch (mach)

            
                {

            
            __EOF__


              for fc in ${sim_mips_multi_configs}; do


                dnl Split up the entry.  ${c} contains the first three elements.

            
                dnl 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/.*://'`


                dnl Build the following lists:

            
                dnl

            
                dnl   SIM_MIPS_IGEN_ITABLE_FLAGS: all -M and -F flags used by the simulator

            
                dnl   SIM_MIPS_MULTI_SRC: all makefile-generated source files

            
                dnl   SIM_MIPS_MULTI_OBJ: the objects for ${SIM_MIPS_MULTI_SRC}

            
                dnl   SIM_MIPS_MULTI_IGEN_CONFIGS: igen configuration strings.

            
                dnl

            
                dnl Each entry in ${SIM_MIPS_MULTI_IGEN_CONFIGS} is a prefix (m32

            
                dnl or m16) followed by the NAME, MACHINE and FILTER part of

            
                dnl the ${sim_mips_multi_configs} entry.

            
                AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [" -F ${filter} -M ${machine}"])


                dnl Check whether special handling is needed.

            
                AS_CASE([${c}],

            
                  [*:*mips16*:*], [dnl

            
            	dnl Run igen twice, once for normal mode and once for mips16.

            
            	ws="m32 m16"


            	dnl The top-level function for the mips16 simulator is

            
            	dnl in a file m16${name}_run.c, generated by the

            
            	dnl tmp-run-multi Makefile rule.

            
            	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/m16${name}_run.c"])

            
            	AS_VAR_APPEND([SIM_MIPS_MULTI_OBJ], [" mips/m16${name}_run.o"])

            
            	AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [" -F 16"])

            
            	],

            
                  [*:*micromips32*:*], [dnl

            
            	dnl Run igen thrice, once for micromips32, once for micromips16,

            
            	dnl and once for m32.

            
            	ws="micromips_m32 micromips16 micromips32"


            	dnl The top-level function for the micromips simulator is

            
            	dnl in a file micromips${name}_run.c, generated by the

            
            	dnl tmp-run-multi Makefile rule.

            
            	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/micromips${name}_run.c"])

            
            	AS_VAR_APPEND([SIM_MIPS_MULTI_OBJ], [" mips/micromips${name}_run.o"])

            
            	AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [" -F 16,32"])

            
            	],

            
                  [*:*micromips64*:*], [dnl

            
            	dnl Run igen thrice, once for micromips64, once for micromips16,

            
            	dnl and once for m64.

            
            	ws="micromips_m64 micromips16 micromips64"


            	dnl The top-level function for the micromips simulator is

            
            	dnl in a file micromips${name}_run.c, generated by the

            
            	dnl tmp-run-multi Makefile rule.

            
            	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/micromips${name}_run.c"])

            
            	AS_VAR_APPEND([SIM_MIPS_MULTI_OBJ], [" mips/micromips${name}_run.o"])

            
            	AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [" -F 16,32,64"])

            
            	],

            
                  [ws=m32])


                dnl Now add the list of igen-generated files to ${SIM_MIPS_MULTI_SRC}

            
                dnl and ${SIM_MIPS_MULTI_OBJ}.

            
                for w in ${ws}; do

            
                  for base in engine icache idecode model semantics support; do

            
            	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/${w}${name}_${base}.c"])

            
            	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/${w}${name}_${base}.h"])

            
            	AS_VAR_APPEND([SIM_MIPS_MULTI_OBJ], [" mips/${w}${name}_${base}.o"])

            
                  done

            
                  AS_VAR_APPEND([SIM_MIPS_MULTI_IGEN_CONFIGS], [" ${w}${c}"])

            
                done


                dnl Add an include for the engine.h file.  This file declares the

            
                dnl top-level foo_engine_run() function.

            
                echo "#include \"${w}${name}_engine.h\"" >> mips/multi-include.h


                dnl Add case statements for this engine to sim_engine_run().

            
                for mach in `echo ${bfdmachs} | sed 's/,/ /g'`; do

            
                  echo "    case bfd_mach_${mach}:" >> mips/multi-run.c

            
                  AS_VAR_IF([mach], ["${sim_mips_multi_default}"], [dnl

            
            	echo "    default:" >> mips/multi-run.c

            
            	sim_mips_seen_default=yes

            
                  ])

            
                done

            
                echo "      ${w}${name}_engine_run (sd, next_cpu_nr, nr_cpus, signal);" \

            
                  >> mips/multi-run.c

            
                echo "      break;" >> mips/multi-run.c

            
              done


              dnl Check whether we added a 'default:' label.

            
              AS_VAR_IF([sim_mips_seen_default], [no], [dnl

            
                AC_MSG_ERROR(Error in configure.ac: \${sim_mips_multi_configs} doesn't have an entry for \${sim_mips_multi_default})])


              cat << __EOF__ >> mips/multi-run.c

            
                }

            
            }

            
            __EOF__

            
            ], [dnl

            
              dnl For clean-extra target.

            
              SIM_MIPS_MULTI_SRC=mips/doesnt-exist.c

            
              SIM_MIPS_IGEN_ITABLE_FLAGS='$(SIM_MIPS_SINGLE_FLAGS)'

            
              AS_VAR_IF([SIM_MIPS_GEN], ["M16"], [AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [' $(SIM_MIPS_M16_FLAGS)'])])

            
            ])

            
            SIM_MIPS_SINGLE_FLAGS="-F ${sim_mips_single_filter} ${sim_mips_single_machine}"

            
            SIM_MIPS_M16_FLAGS="-F ${sim_mips_m16_filter} ${sim_mips_m16_machine}"

            
            AC_SUBST(SIM_MIPS_SINGLE_FLAGS)

            
            AC_SUBST(SIM_MIPS_M16_FLAGS)

            
            AC_SUBST(SIM_MIPS_GEN)

            
            AC_SUBST(SIM_MIPS_IGEN_ITABLE_FLAGS)

            
            AC_SUBST(SIM_MIPS_MULTI_IGEN_CONFIGS)

            
            AC_SUBST(SIM_MIPS_MULTI_SRC)

            
            AC_SUBST(SIM_MIPS_MULTI_OBJ)

            
            AM_CONDITIONAL([SIM_MIPS_GEN_MODE_SINGLE], [test "$SIM_MIPS_GEN" = "SINGLE"])

            
            AM_CONDITIONAL([SIM_MIPS_GEN_MODE_M16], [test "$SIM_MIPS_GEN" = "M16"])

            
            AM_CONDITIONAL([SIM_MIPS_GEN_MODE_MULTI], [test "$SIM_MIPS_GEN" = "MULTI"])
	dnl Copyright (C) 2005-2023 Free Software Foundation, Inc.
	dnl
	dnl This program is free software; you can redistribute it and/or modify
	dnl it under the terms of the GNU General Public License as published by
	dnl the Free Software Foundation; either version 3 of the License, or
	dnl (at your option) any later version.
	dnl
	dnl This program is distributed in the hope that it will be useful,
	dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
	dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	dnl GNU General Public License for more details.
	dnl
	dnl You should have received a copy of the GNU General Public License
	dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
	dnl
	dnl NB: This file is included in sim/configure, so keep settings namespaced.

	dnl DEPRECATED
	dnl
	dnl Instead of defining a `subtarget' macro, code should be checking the value
	dnl of {STATE,CPU}_ARCHITECTURE to identify the architecture dnl in question.
	AC_MSG_CHECKING([mips subtarget])
	SIM_MIPS_SUBTARGET=
	AS_CASE([${target}],
	[mips64vr--*], [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"],
	[mipstx39], [SIM_MIPS_SUBTARGET="-DSUBTARGET_R3900=1"],
	[mips-sde-elf], [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"],
	[mips-mti-elf], [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"],
	[mipsisa32--*], [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"],
	[mipsisa64--*], [SIM_MIPS_SUBTARGET="-DTARGET_ENABLE_FR=1"])
	AC_MSG_RESULT([${SIM_MIPS_SUBTARGET:-none}])
	AC_SUBST(SIM_MIPS_SUBTARGET)

	dnl Select the bitsize of the target.
	AC_MSG_CHECKING([mips bitsize])
	SIM_MIPS_BITSIZE=64
	AS_CASE([${target}],
	[mips-sde-elf], [SIM_MIPS_BITSIZE=64],
	[mips-mti-elf], [SIM_MIPS_BITSIZE=64],
	[mips64--*], [SIM_MIPS_BITSIZE=64],
	[mips16--*], [SIM_MIPS_BITSIZE=64],
	[mipsisa32--*], [SIM_MIPS_BITSIZE=32],
	[mipsisa64--*], [SIM_MIPS_BITSIZE=64],
	[mips--*], [SIM_MIPS_BITSIZE=32])
	AC_MSG_RESULT([$SIM_MIPS_BITSIZE])
	AC_SUBST(SIM_MIPS_BITSIZE)

	dnl Select the floating hardware support of the target.
	AC_MSG_CHECKING([mips fpu bitsize])
	SIM_MIPS_FPU_BITSIZE=64
	AS_CASE([${target}],
	[mipstx39], [SIM_MIPS_FPU_BITSIZE=32],
	[mips-sde-elf], [SIM_MIPS_FPU_BITSIZE=64],
	[mips-mti-elf], [SIM_MIPS_FPU_BITSIZE=64],
	[mipsisa32--*], [SIM_MIPS_FPU_BITSIZE=64],
	[mipsisa64--*], [SIM_MIPS_FPU_BITSIZE=64],
	[mips--*], [SIM_MIPS_FPU_BITSIZE=32])
	AC_MSG_RESULT([$SIM_MIPS_FPU_BITSIZE])
	AC_SUBST(SIM_MIPS_FPU_BITSIZE)

	dnl Select the IGEN architecture.
	SIM_MIPS_GEN=SINGLE
	sim_mips_single_machine="-M mipsIV"
	sim_mips_m16_machine="-M mips16,mipsIII"
	sim_mips_single_filter="32,64,f"
	sim_mips_m16_filter="16"
	AS_CASE([${target}],
	[mipstx39], [dnl
	SIM_MIPS_GEN=SINGLE
	sim_mips_single_filter="32,f"
	sim_mips_single_machine="-M r3900"],
	[mips64vr41*], [dnl
	SIM_MIPS_GEN=M16
	sim_mips_single_machine="-M vr4100"
	sim_mips_m16_machine="-M vr4100"],
	[mips64*], [dnl
	SIM_MIPS_GEN=MULTI
	sim_mips_multi_configs="\
	vr4100:mipsIII,mips16,vr4100:32,64:mips4100,mips4111\
	vr4120:mipsIII,mips16,vr4120:32,64:mips4120\
	vr5000:mipsIV:32,64,f:mips4300,mips5000,mips8000\
	vr5400:mipsIV,vr5400:32,64,f:mips5400\
	vr5500:mipsIV,vr5500:32,64,f:mips5500"
	sim_mips_multi_default=mips5000],
	[mips-sde-elf \| mips-mti-elf], [dnl
	SIM_MIPS_GEN=MULTI
	sim_mips_multi_configs="\
	micromips:micromips64,micromipsdsp:32,64,f:mips_micromips\
	mipsisa64r2:mips64r2,mips16,mips16e,mdmx,dsp,dsp2,mips3d,smartmips:32,64,f:mipsisa32r2,mipsisa64r2,mipsisa32r5,mipsisa64r5\
	mipsisa64r6:mips64r6:32,64,f:mipsisa32r6,mipsisa64r6"
	sim_mips_multi_default=mipsisa64r2],
	[mips16*], [dnl
	SIM_MIPS_GEN=M16],
	[mipsisa32r2*], [dnl
	SIM_MIPS_GEN=MULTI
	sim_mips_multi_configs="\
	micromips:micromips32,micromipsdsp:32,f:mips_micromips\
	mips32r2:mips32r2,mips3d,mips16,mips16e,mdmx,dsp,dsp2,smartmips:32,f:mipsisa32r2"
	sim_mips_multi_default=mipsisa32r2],
	[mipsisa32r6*], [dnl
	SIM_MIPS_GEN=SINGLE
	sim_mips_single_machine="-M mips32r6"
	sim_mips_single_filter="32,f"],
	[mipsisa32*], [dnl
	SIM_MIPS_GEN=M16
	sim_mips_single_machine="-M mips32,mips16,mips16e,smartmips"
	sim_mips_m16_machine="-M mips16,mips16e,mips32"
	sim_mips_single_filter="32,f"],
	[mipsisa64r2*], [dnl
	SIM_MIPS_GEN=M16
	sim_mips_single_machine="-M mips64r2,mips3d,mips16,mips16e,mdmx,dsp,dsp2"
	sim_mips_m16_machine="-M mips16,mips16e,mips64r2"],
	[mipsisa64r6*], [dnl
	SIM_MIPS_GEN=SINGLE
	sim_mips_single_machine="-M mips64r6"],
	[mipsisa64sb1*], [dnl
	SIM_MIPS_GEN=SINGLE
	sim_mips_single_machine="-M mips64,mips3d,sb1"],
	[mipsisa64*], [dnl
	SIM_MIPS_GEN=M16
	sim_mips_single_machine="-M mips64,mips3d,mips16,mips16e,mdmx"
	sim_mips_m16_machine="-M mips16,mips16e,mips64"],
	[mipslsi], [dnl
	SIM_MIPS_GEN=M16
	sim_mips_single_machine="-M mipsIII,mips16"
	sim_mips_m16_machine="-M mips16,mipsIII"
	sim_mips_single_filter="32,f"],
	[mips*], [dnl
	SIM_MIPS_GEN=SINGLE
	sim_mips_single_filter="32,f"])

	dnl The MULTI generator can combine several simulation engines into one.
	dnl executable. A configuration which uses the MULTI should set two
	dnl variables: ${sim_mips_multi_configs} and ${sim_mips_multi_default}.
	dnl
	dnl ${sim_mips_multi_configs} is the list of engines to build. Each
	dnl space-separated entry has the form NAME:MACHINE:FILTER:BFDMACHS,
	dnl where:
	dnl
	dnl - NAME is a C-compatible prefix for the engine,
	dnl - MACHINE is a -M argument,
	dnl - FILTER is a -F argument, and
	dnl - BFDMACHS is a comma-separated list of bfd machines that the
	dnl simulator can run.
	dnl
	dnl Each entry will have a separate simulation engine whose prefix is
	dnl m32<NAME>. If the machine list includes "mips16", there will also
	dnl be a mips16 engine, prefix m16<NAME>. The mips16 engine will be
	dnl generated using the same machine list as the 32-bit version,
	dnl but the filter will be "16" instead of FILTER.
	dnl
	dnl The simulator compares the bfd mach against BFDMACHS to decide
	dnl which engine to use. Entries in BFDMACHS should be bfd_mach
	dnl values with "bfd_mach_" removed. ${sim_mips_multi_default} says
	dnl which entry should be the default.
	SIM_MIPS_IGEN_ITABLE_FLAGS=
	SIM_MIPS_MULTI_SRC=
	SIM_MIPS_MULTI_OBJ=
	SIM_MIPS_MULTI_IGEN_CONFIGS=
	AS_VAR_IF([SIM_MIPS_GEN], ["MULTI"], [dnl
	dnl Verify the AS_CASE logic above is setup correctly.
	AS_IF([test -z "${sim_mips_multi_configs}" \|\| test -z "${sim_mips_multi_default}"], [dnl
	AC_MSG_ERROR(Error in configure.ac: MULTI simulator not set up correctly)])

	dnl Start in a known state.
	AS_MKDIR_P([mips])
	rm -f mips/multi-include.h mips/multi-run.c
	sim_mips_seen_default=no

	cat << __EOF__ > mips/multi-run.c
	/* Main entry point for MULTI simulators.
	Copyright (C) 2003-2023 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 3 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, see <http://www.gnu.org/licenses/>.

	--

	This file was generated by sim/mips/configure. */

	#include "sim-main.h"
	#include "multi-include.h"
	#include "bfd/elf-bfd.h"
	#include "bfd/elfxx-mips.h"
	#include "elf/mips.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_mips_multi_default};
	else if (elf_elfheader (STATE_PROG_BFD (sd))->e_flags
	& EF_MIPS_ARCH_ASE_MICROMIPS)
	mach = bfd_mach_mips_micromips;
	else
	{
	mach = _bfd_elf_mips_mach (elf_elfheader (STATE_PROG_BFD (sd))->e_flags);
	if (!mach)
	mach = STATE_ARCHITECTURE (SD)->mach;
	}

	switch (mach)
	{
	__EOF__

	for fc in ${sim_mips_multi_configs}; do

	dnl Split up the entry. ${c} contains the first three elements.
	dnl 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/.*://'`

	dnl Build the following lists:
	dnl
	dnl SIM_MIPS_IGEN_ITABLE_FLAGS: all -M and -F flags used by the simulator
	dnl SIM_MIPS_MULTI_SRC: all makefile-generated source files
	dnl SIM_MIPS_MULTI_OBJ: the objects for ${SIM_MIPS_MULTI_SRC}
	dnl SIM_MIPS_MULTI_IGEN_CONFIGS: igen configuration strings.
	dnl
	dnl Each entry in ${SIM_MIPS_MULTI_IGEN_CONFIGS} is a prefix (m32
	dnl or m16) followed by the NAME, MACHINE and FILTER part of
	dnl the ${sim_mips_multi_configs} entry.
	AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [" -F ${filter} -M ${machine}"])

	dnl Check whether special handling is needed.
	AS_CASE([${c}],
	[:mips16:], [dnl
	dnl Run igen twice, once for normal mode and once for mips16.
	ws="m32 m16"

	dnl The top-level function for the mips16 simulator is
	dnl in a file m16${name}_run.c, generated by the
	dnl tmp-run-multi Makefile rule.
	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/m16${name}_run.c"])
	AS_VAR_APPEND([SIM_MIPS_MULTI_OBJ], [" mips/m16${name}_run.o"])
	AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [" -F 16"])
	],
	[:micromips32:], [dnl
	dnl Run igen thrice, once for micromips32, once for micromips16,
	dnl and once for m32.
	ws="micromips_m32 micromips16 micromips32"

	dnl The top-level function for the micromips simulator is
	dnl in a file micromips${name}_run.c, generated by the
	dnl tmp-run-multi Makefile rule.
	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/micromips${name}_run.c"])
	AS_VAR_APPEND([SIM_MIPS_MULTI_OBJ], [" mips/micromips${name}_run.o"])
	AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [" -F 16,32"])
	],
	[:micromips64:], [dnl
	dnl Run igen thrice, once for micromips64, once for micromips16,
	dnl and once for m64.
	ws="micromips_m64 micromips16 micromips64"

	dnl The top-level function for the micromips simulator is
	dnl in a file micromips${name}_run.c, generated by the
	dnl tmp-run-multi Makefile rule.
	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/micromips${name}_run.c"])
	AS_VAR_APPEND([SIM_MIPS_MULTI_OBJ], [" mips/micromips${name}_run.o"])
	AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [" -F 16,32,64"])
	],
	[ws=m32])

	dnl Now add the list of igen-generated files to ${SIM_MIPS_MULTI_SRC}
	dnl and ${SIM_MIPS_MULTI_OBJ}.
	for w in ${ws}; do
	for base in engine icache idecode model semantics support; do
	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/${w}${name}_${base}.c"])
	AS_VAR_APPEND([SIM_MIPS_MULTI_SRC], [" mips/${w}${name}_${base}.h"])
	AS_VAR_APPEND([SIM_MIPS_MULTI_OBJ], [" mips/${w}${name}_${base}.o"])
	done
	AS_VAR_APPEND([SIM_MIPS_MULTI_IGEN_CONFIGS], [" ${w}${c}"])
	done

	dnl Add an include for the engine.h file. This file declares the
	dnl top-level foo_engine_run() function.
	echo "#include \"${w}${name}_engine.h\"" >> mips/multi-include.h

	dnl Add case statements for this engine to sim_engine_run().
	for mach in `echo ${bfdmachs} \| sed 's/,/ /g'`; do
	echo " case bfd_mach_${mach}:" >> mips/multi-run.c
	AS_VAR_IF([mach], ["${sim_mips_multi_default}"], [dnl
	echo " default:" >> mips/multi-run.c
	sim_mips_seen_default=yes
	])
	done
	echo " ${w}${name}_engine_run (sd, next_cpu_nr, nr_cpus, signal);" \
	>> mips/multi-run.c
	echo " break;" >> mips/multi-run.c
	done

	dnl Check whether we added a 'default:' label.
	AS_VAR_IF([sim_mips_seen_default], [no], [dnl
	AC_MSG_ERROR(Error in configure.ac: \${sim_mips_multi_configs} doesn't have an entry for \${sim_mips_multi_default})])

	cat << __EOF__ >> mips/multi-run.c
	}
	}
	__EOF__
	], [dnl
	dnl For clean-extra target.
	SIM_MIPS_MULTI_SRC=mips/doesnt-exist.c
	SIM_MIPS_IGEN_ITABLE_FLAGS='$(SIM_MIPS_SINGLE_FLAGS)'
	AS_VAR_IF([SIM_MIPS_GEN], ["M16"], [AS_VAR_APPEND([SIM_MIPS_IGEN_ITABLE_FLAGS], [' $(SIM_MIPS_M16_FLAGS)'])])
	])
	SIM_MIPS_SINGLE_FLAGS="-F ${sim_mips_single_filter} ${sim_mips_single_machine}"
	SIM_MIPS_M16_FLAGS="-F ${sim_mips_m16_filter} ${sim_mips_m16_machine}"
	AC_SUBST(SIM_MIPS_SINGLE_FLAGS)
	AC_SUBST(SIM_MIPS_M16_FLAGS)
	AC_SUBST(SIM_MIPS_GEN)
	AC_SUBST(SIM_MIPS_IGEN_ITABLE_FLAGS)
	AC_SUBST(SIM_MIPS_MULTI_IGEN_CONFIGS)
	AC_SUBST(SIM_MIPS_MULTI_SRC)
	AC_SUBST(SIM_MIPS_MULTI_OBJ)
	AM_CONDITIONAL([SIM_MIPS_GEN_MODE_SINGLE], [test "$SIM_MIPS_GEN" = "SINGLE"])
	AM_CONDITIONAL([SIM_MIPS_GEN_MODE_M16], [test "$SIM_MIPS_GEN" = "M16"])
	AM_CONDITIONAL([SIM_MIPS_GEN_MODE_MULTI], [test "$SIM_MIPS_GEN" = "MULTI"])