Add micromips support to the MIPS simulator
Commit Message
Firstly, sorry for the long delay in replying back to your review comments.
> > --- a/sim/mips/Makefile.in
> > +++ b/sim/mips/Makefile.in
> >
> > support.o: sim-main.h support.c $(SIM_EXTRA_DEPS)
> > idecode.o: sim-main.h idecode.c $(SIM_EXTRA_DEPS)
> > itable.o: sim-main.h itable.c $(SIM_EXTRA_DEPS)
> > -m16run.o: sim-main.h m16_idecode.h m32_idecode.h $(SIM_EXTRA_DEPS)
> > +m16run.o: sim-main.h m16_idecode.h m32_idecode.h m16run.c $(SIM_EXTRA_DEPS)
> > +micromipsrun.o: sim-main.h micromips16_idecode.h micromips32_idecode.h \
> > + micromips_m32_idecode.h micromipsrun.c $(SIM_EXTRA_DEPS)
>
> pretty sure you don't need any of this hand maintained dependency info
> anymore.
> can you please try deleting it all instead ?
Done. I had to keep in the micromipsrun.o, m16run.o and interp.o rules
as these rely on files generated by igen.
> > --- a/sim/mips/configure.ac
> > +++ b/sim/mips/configure.ac
> >
> > + *:*micromips32*:*)
> > + # Run igen thrice, once for micromips32, once for micromips16,
> > + # and once for m32.
> > + ws="micromips_m32 micromips16 micromips32"
>
> indentation is broken slightly on the second comment line. seems to come up a
> few times ... you should fix them all.
This has been fixed.
>
> > --- a/sim/mips/interp.c
> > +++ b/sim/mips/interp.c
> >
> > +/* microMIPS ISA mode */
> > +int isa_mode;
>
> why is this a global instead of being part of the sim state ?
>
> the comment also needs tweaking to match GNU style
This has now been moved to the sim_state structure.
> > --- /dev/null
> > +++ b/sim/mips/micromipsrun.c
> >
> > +/* Run function for the micromips simulator
> > +
> > + Copyright (C) 2005-2013 Free Software Foundation, Inc.
>
> years needs updating
Done.
>
> > + This file is part of GDB, the GNU debugger.
>
> i think you mean:
> This file is part of the GNU simulators.
Correct. I have changed all files my patch changes to have this comment.
> > +#define SD sd
> > +#define CPU cpu
>
> unused ?
No, they are required for some of the macros used in the file so they need to
stay in.
>
> > +void
> > +sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus, int signal);
>
> you should include sim-engine.h instead of declaring the prototype yourself
Done.
> -mike
I have attached the full updated patch, and I have inlined the changes I made to
the original patch below. The patch also changes CIA_{GET/SET} to CPU_PC_{GET/SET},
and moves multi-run.o from sim_multi_obj to SIM_MULTI_OBJ to match the structure of
the other SIM_*_OBJ variables. Finally, I also need to add an extra ChangeLog
entry to account for the change to the sim_state structure:
sim/mips/
* sim-main.h (sim_state): Add isa_mode field.
Ok to commit?
Regards,
Andrew
Comments
Ping.
I was wondering if anyone has had a chance to look at this yet?
Many thanks,
Andrew
> -----Original Message-----
> From: gdb-patches-owner@sourceware.org [mailto:gdb-patches-
> owner@sourceware.org] On Behalf Of Andrew Bennett
> Sent: 27 August 2015 16:05
> To: Mike Frysinger
> Cc: gdb-patches@sourceware.org
> Subject: RE: [PATCH] Add micromips support to the MIPS simulator
>
> Firstly, sorry for the long delay in replying back to your review comments.
>
> > > --- a/sim/mips/Makefile.in
> > > +++ b/sim/mips/Makefile.in
> > >
> > > support.o: sim-main.h support.c $(SIM_EXTRA_DEPS)
> > > idecode.o: sim-main.h idecode.c $(SIM_EXTRA_DEPS)
> > > itable.o: sim-main.h itable.c $(SIM_EXTRA_DEPS)
> > > -m16run.o: sim-main.h m16_idecode.h m32_idecode.h $(SIM_EXTRA_DEPS)
> > > +m16run.o: sim-main.h m16_idecode.h m32_idecode.h m16run.c
> $(SIM_EXTRA_DEPS)
> > > +micromipsrun.o: sim-main.h micromips16_idecode.h micromips32_idecode.h \
> > > + micromips_m32_idecode.h micromipsrun.c $(SIM_EXTRA_DEPS)
> >
> > pretty sure you don't need any of this hand maintained dependency info
> > anymore.
> > can you please try deleting it all instead ?
>
> Done. I had to keep in the micromipsrun.o, m16run.o and interp.o rules
> as these rely on files generated by igen.
>
> > > --- a/sim/mips/configure.ac
> > > +++ b/sim/mips/configure.ac
> > >
> > > + *:*micromips32*:*)
> > > + # Run igen thrice, once for micromips32, once for micromips16,
> > > + # and once for m32.
> > > + ws="micromips_m32 micromips16 micromips32"
> >
> > indentation is broken slightly on the second comment line. seems to come up
> a
> > few times ... you should fix them all.
>
> This has been fixed.
>
> >
> > > --- a/sim/mips/interp.c
> > > +++ b/sim/mips/interp.c
> > >
> > > +/* microMIPS ISA mode */
> > > +int isa_mode;
> >
> > why is this a global instead of being part of the sim state ?
> >
> > the comment also needs tweaking to match GNU style
>
> This has now been moved to the sim_state structure.
>
> > > --- /dev/null
> > > +++ b/sim/mips/micromipsrun.c
> > >
> > > +/* Run function for the micromips simulator
> > > +
> > > + Copyright (C) 2005-2013 Free Software Foundation, Inc.
> >
> > years needs updating
>
> Done.
>
> >
> > > + This file is part of GDB, the GNU debugger.
> >
> > i think you mean:
> > This file is part of the GNU simulators.
>
> Correct. I have changed all files my patch changes to have this comment.
>
>
> > > +#define SD sd
> > > +#define CPU cpu
> >
> > unused ?
>
> No, they are required for some of the macros used in the file so they need to
> stay in.
>
> >
> > > +void
> > > +sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus, int signal);
> >
> > you should include sim-engine.h instead of declaring the prototype yourself
>
> Done.
>
> > -mike
>
>
> I have attached the full updated patch, and I have inlined the changes I made
> to
> the original patch below. The patch also changes CIA_{GET/SET} to
> CPU_PC_{GET/SET},
> and moves multi-run.o from sim_multi_obj to SIM_MULTI_OBJ to match the
> structure of
> the other SIM_*_OBJ variables. Finally, I also need to add an extra
> ChangeLog
> entry to account for the change to the sim_state structure:
>
> sim/mips/
>
> * sim-main.h (sim_state): Add isa_mode field.
>
>
> Ok to commit?
>
>
> Regards,
>
>
>
> Andrew
>
>
>
>
> diff --git a/sim/mips/Makefile.in b/sim/mips/Makefile.in
> index f4beb45..f02e1bd 100644
> --- a/sim/mips/Makefile.in
> +++ b/sim/mips/Makefile.in
> @@ -55,7 +55,9 @@ SIM_MICROMIPS_OBJ = \
> micromipsrun.o \
>
>
> -SIM_MULTI_OBJ = itable.o @sim_multi_obj@
> +SIM_MULTI_OBJ = @sim_multi_obj@ \
> + itable.o \
> + multi-run.o \
>
> MIPS_EXTRA_LIBS = @mips_extra_libs@
>
> @@ -88,11 +90,11 @@ SIM_EXTRA_LIBS = $(MIPS_EXTRA_LIBS)
> ## COMMON_POST_CONFIG_FRAG
>
> interp.o: $(srcdir)/interp.c config.h sim-main.h itable.h
> -cp1.o: $(srcdir)/cp1.c config.h sim-main.h
>
> -mdmx.o: $(srcdir)/mdmx.c $(srcdir)/sim-main.h
> +m16run.o: sim-main.h m16_idecode.h m32_idecode.h m16run.c $(SIM_EXTRA_DEPS)
>
> -dsp.o: $(srcdir)/dsp.c $(srcdir)/sim-main.h
> +micromipsrun.o: sim-main.h micromips16_idecode.h micromips32_idecode.h \
> + micromips_m32_idecode.h micromipsrun.c $(SIM_EXTRA_DEPS)
>
> multi-run.o: multi-include.h tmp-mach-multi
>
> @@ -199,43 +201,6 @@ tmp-igen: $(IGEN_INSN) $(IGEN_DC) ../igen/igen
> $(IGEN_INCLUDE)
> $(SHELL) $(srcdir)/../../move-if-change tmp-irun.c irun.c
> touch tmp-igen
>
> -semantics.o: sim-main.h semantics.c $(SIM_EXTRA_DEPS)
> -engine.o: sim-main.h engine.c $(SIM_EXTRA_DEPS)
> -support.o: sim-main.h support.c $(SIM_EXTRA_DEPS)
> -idecode.o: sim-main.h idecode.c $(SIM_EXTRA_DEPS)
> -itable.o: sim-main.h itable.c $(SIM_EXTRA_DEPS)
> -m16run.o: sim-main.h m16_idecode.h m32_idecode.h m16run.c $(SIM_EXTRA_DEPS)
> -micromipsrun.o: sim-main.h micromips16_idecode.h micromips32_idecode.h \
> - micromips_m32_idecode.h micromipsrun.c $(SIM_EXTRA_DEPS)
> -
> -m16_semantics.o: sim-main.h m16_semantics.c $(SIM_EXTRA_DEPS)
> -m16_support.o: sim-main.h m16_support.c $(SIM_EXTRA_DEPS)
> -m16_idecode.o: sim-main.h m16_idecode.c $(SIM_EXTRA_DEPS)
> -m16_icache.o: sim-main.h m16_icache.c $(SIM_EXTRA_DEPS)
> -
> -micromips_m32_semantics.o: sim-main.h micromips_m32_semantics.c \
> - $(SIM_EXTRA_DEPS)
> -micromips_m32_support.o: sim-main.h micromips_m32_support.c $(SIM_EXTRA_DEPS)
> -micromips_m32_idecode.o: sim-main.h micromips_m32_idecode.c $(SIM_EXTRA_DEPS)
> -micromips_m32_icache.o: sim-main.h micromips_m32_icache.c $(SIM_EXTRA_DEPS)
> -
> -m32_semantics.o: sim-main.h m32_semantics.c $(SIM_EXTRA_DEPS)
> -m32_support.o: sim-main.h m32_support.c $(SIM_EXTRA_DEPS)
> -m32_idecode.o: sim-main.h m32_idecode.c $(SIM_EXTRA_DEPS)
> -m32_icache.o: sim-main.h m32_icache.c $(SIM_EXTRA_DEPS)
> -
> -micromips16_semantics.o: sim-main.h micromips16_semantics.c $(SIM_EXTRA_DEPS)
> -micromips16_support.o: sim-main.h micromips16_support.c $(SIM_EXTRA_DEPS)
> -micromips16_idecode.o: sim-main.h micromips16_idecode.c $(SIM_EXTRA_DEPS)
> -micromips16_icache.o: sim-main.h micromips16_icache.c $(SIM_EXTRA_DEPS)
> -
> -micromips32_semantics.o: sim-main.h micromips32_semantics.c $(SIM_EXTRA_DEPS)
> -micromips32_support.o: sim-main.h micromips32_support.c $(SIM_EXTRA_DEPS)
> -micromips32_idecode.o: sim-main.h micromips32_idecode.c $(SIM_EXTRA_DEPS)
> -micromips32_icache.o: sim-main.h micromips32_icache.c $(SIM_EXTRA_DEPS)
> -
> -$(SIM_MULTI_OBJ): sim-main.h $(SIM_EXTRA_DEPS)
> -
> BUILT_SRC_FROM_M16 = \
> m16_icache.h \
> m16_icache.c \
> diff --git a/sim/mips/configure.ac b/sim/mips/configure.ac
> index e2a4871..a642326 100644
> --- a/sim/mips/configure.ac
> +++ b/sim/mips/configure.ac
> @@ -228,7 +228,7 @@ if test ${sim_gen} = MULTI; then
> rm -f multi-include.h multi-run.c
> sim_multi_flags=
> sim_multi_src=
> - sim_multi_obj=multi-run.o
> + sim_multi_obj=
> sim_multi_igen_configs=
> sim_seen_default=no
>
> @@ -318,7 +318,7 @@ __EOF__
> ;;
> *:*micromips32*:*)
> # Run igen thrice, once for micromips32, once for micromips16,
> - # and once for m32.
> + # and once for m32.
> ws="micromips_m32 micromips16 micromips32"
>
> # The top-level function for the micromips simulator is
> @@ -330,7 +330,7 @@ __EOF__
> ;;
> *:*micromips64*:*)
> # Run igen thrice, once for micromips64, once for micromips16,
> - # and once for m64.
> + # and once for m64.
> ws="micromips_m64 micromips16 micromips64"
>
> # The top-level function for the micromips simulator is
> @@ -436,8 +436,6 @@ AC_SUBST(sim_multi_flags)
> AC_SUBST(sim_multi_igen_configs)
> AC_SUBST(sim_multi_src)
> AC_SUBST(sim_multi_obj)
> -
> -
> #
> # Add simulated hardware devices
> #
> diff --git a/sim/mips/dsp.igen b/sim/mips/dsp.igen
> index 35c90d0..b8d5a6c 100644
> --- a/sim/mips/dsp.igen
> +++ b/sim/mips/dsp.igen
> @@ -4,7 +4,7 @@
> // Copyright (C) 2005-2015 Free Software Foundation, Inc.
> // Contributed by MIPS Technologies, Inc. Written by Chao-ying Fu.
> //
> -// This file is part of GDB, the GNU debugger.
> +// This file is part of the MIPS sim
> //
> // 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
> diff --git a/sim/mips/dsp2.igen b/sim/mips/dsp2.igen
> index 06b5a68..a871026 100644
> --- a/sim/mips/dsp2.igen
> +++ b/sim/mips/dsp2.igen
> @@ -5,7 +5,7 @@
> // Contributed by MIPS Technologies, Inc.
> // Written by Chao-ying Fu (fu@mips.com).
> //
> -// This file is part of GDB, the GNU debugger.
> +// This file is part of the MIPS sim
> //
> // 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
> diff --git a/sim/mips/interp.c b/sim/mips/interp.c
> index 686de61..9dc8964 100644
> --- a/sim/mips/interp.c
> +++ b/sim/mips/interp.c
> @@ -146,9 +146,6 @@ static SIM_ADDR lsipmon_monitor_base = 0xBFC00200;
>
> static SIM_RC sim_firmware_command (SIM_DESC sd, char* arg);
>
> -/* microMIPS ISA mode */
> -int isa_mode;
> -
> #define MEM_SIZE (8 << 20) /* 8 MBytes */
>
>
> diff --git a/sim/mips/micromips.igen b/sim/mips/micromips.igen
> index fdd0368..2c62376 100644
> --- a/sim/mips/micromips.igen
> +++ b/sim/mips/micromips.igen
> @@ -1,9 +1,9 @@
> // Simulator definition for the micromips ASE.
> -// Copyright (C) 2005-2013 Free Software Foundation, Inc.
> +// Copyright (C) 2005-2015 Free Software Foundation, Inc.
> // Contributed by Imagination Technologies, Ltd.
> // Written by Andrew Bennett <andrew.bennett@imgtec.com>
> //
> -// This file is part of GDB, the GNU debugger.
> +// This file is part of the MIPS sim.
> //
> // 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
> @@ -53,7 +53,7 @@
>
> :function:::address_word:process_isa_mode:address_word target
> {
> - isa_mode = target & 0x1;
> + SD->isa_mode = target & 0x1;
> return (target & (-1 << 1));
> }
>
> @@ -1063,7 +1063,7 @@
> address_word region = (NIA & MASK (63, 26));
> NIA = do_micromips_jal (SD_, (region | (IMM_SHIFT_2BIT)) | ISA_MODE_MIPS32,
> NIA, MICROMIPS_DELAYSLOT_SIZE_32);
> - isa_mode = ISA_MODE_MIPS32;
> + SD->isa_mode = ISA_MODE_MIPS32;
> }
>
> 000000,00000,5.RS,0000111100,111100:POOL32A:32::JR
> diff --git a/sim/mips/micromipsdsp.igen b/sim/mips/micromipsdsp.igen
> index c19de09..daa9f83 100644
> --- a/sim/mips/micromipsdsp.igen
> +++ b/sim/mips/micromipsdsp.igen
> @@ -1,9 +1,9 @@
> // Simulator definition for the micromips DSP ASE.
> -// Copyright (C) 2005-2013 Free Software Foundation, Inc.
> +// Copyright (C) 2005-2015 Free Software Foundation, Inc.
> // Contributed by Imagination Technologies, Ltd.
> // Written by Andrew Bennett <andrew.bennett@imgtec.com>
> //
> -// This file is part of GDB, the GNU debugger.
> +// This file is part of the MIPS sim.
> //
> // 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
> diff --git a/sim/mips/micromipsrun.c b/sim/mips/micromipsrun.c
> index f07ad8e..7dd10d7 100644
> --- a/sim/mips/micromipsrun.c
> +++ b/sim/mips/micromipsrun.c
> @@ -1,10 +1,10 @@
> /* Run function for the micromips simulator
>
> - Copyright (C) 2005-2013 Free Software Foundation, Inc.
> + Copyright (C) 2005-2015 Free Software Foundation, Inc.
> Contributed by Imagination Technologies, Ltd.
> Written by Andrew Bennett <andrew.bennett@imgtec.com>.
>
> - This file is part of GDB, the GNU debugger.
> + This file is part of the MIPS sim.
>
> 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
> @@ -24,14 +24,11 @@
> #include "micromips32_idecode.h"
> #include "micromips_m32_idecode.h"
> #include "bfd.h"
> -
> +#include "sim-engine.h"
>
> #define SD sd
> #define CPU cpu
>
> -void
> -sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus, int signal);
> -
> address_word
> micromips_instruction_decode (SIM_DESC sd, sim_cpu * cpu,
> address_word cia,
> @@ -74,8 +71,8 @@ sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus,
> {
> micromips_m32_instruction_word instruction_0;
> sim_cpu *cpu = STATE_CPU (sd, next_cpu_nr);
> - micromips32_instruction_address cia = CIA_GET (cpu);
> - isa_mode = ISA_MODE_MIPS32;
> + micromips32_instruction_address cia = CPU_PC_GET (cpu);
> + sd->isa_mode = ISA_MODE_MIPS32;
>
> while (1)
> {
> @@ -87,17 +84,17 @@ sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus,
> from the elf header.
> 2. Setting the correct isa mode after a MIPS32 jump or branch
> instruction. */
> - if ((isa_mode == ISA_MODE_MIPS32)
> + if ((sd->isa_mode == ISA_MODE_MIPS32)
> && ((cia & 0x1) == ISA_MODE_MICROMIPS))
> {
> - isa_mode = ISA_MODE_MICROMIPS;
> + sd->isa_mode = ISA_MODE_MICROMIPS;
> cia = cia & ~0x1;
> }
>
> #if defined (ENGINE_ISSUE_PREFIX_HOOK)
> ENGINE_ISSUE_PREFIX_HOOK ();
> #endif
> - switch (isa_mode)
> + switch (sd->isa_mode)
> {
> case ISA_MODE_MICROMIPS:
> nia =
> @@ -122,9 +119,9 @@ sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus,
> /* process any events */
> if (sim_events_tick (sd))
> {
> - CIA_SET (CPU, cia);
> + CPU_PC_SET (cpu, cia);
> sim_events_process (sd);
> - cia = CIA_GET (CPU);
> + cia = CPU_PC_GET (cpu);
> }
> }
> }
> diff --git a/sim/mips/mips3264r2.igen b/sim/mips/mips3264r2.igen
> index e003664..1c299c3 100644
> --- a/sim/mips/mips3264r2.igen
> +++ b/sim/mips/mips3264r2.igen
> @@ -4,7 +4,7 @@
> // Copyright (C) 2004-2015 Free Software Foundation, Inc.
> // Contributed by David Ung, of MIPS Technologies.
> //
> -// This file is part of GDB, the GNU debugger.
> +// This file is part of the MIPS sim.
> //
> // 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
> diff --git a/sim/mips/sim-main.h b/sim/mips/sim-main.h
> index 4bfc06c..42d8db3 100644
> --- a/sim/mips/sim-main.h
> +++ b/sim/mips/sim-main.h
> @@ -2,7 +2,7 @@
> Copyright (C) 1997-2015 Free Software Foundation, Inc.
> Contributed by Cygnus Support.
>
> -This file is part of GDB, the GNU debugger.
> +This file is part of the MIPS sim.
>
> 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
> @@ -493,6 +493,9 @@ struct sim_state {
>
> sim_cpu *cpu[MAX_NR_PROCESSORS];
>
> + /* microMIPS ISA mode. */
> + int isa_mode;
> +
> sim_state_base base;
> };
>
> diff --git a/sim/testsuite/sim/mips/hilo-hazard-4.s
> b/sim/testsuite/sim/mips/hilo-hazard-4.s
> index c489a4f..e83fbfa 100644
> --- a/sim/testsuite/sim/mips/hilo-hazard-4.s
> +++ b/sim/testsuite/sim/mips/hilo-hazard-4.s
> @@ -5,11 +5,11 @@
> # ld: -N -Ttext=0x80010000
> # output: pass\\n
>
> -# Copyright (C) 2013 Imagination Technologies, Ltd.
> +# Copyright (C) 2013-2015 Imagination Technologies, Ltd.
> # All rights reserved.
> # Contributed by Andrew Bennett (andrew.bennett@imgtec.com)
> #
> -# This file is part of the GNU simulators.
> +# This file is part of the MIPS sim.
> #
> # 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
On 27 Aug 2015 15:05, Andrew Bennett wrote:
> > > +#define SD sd
> > > +#define CPU cpu
> >
> > unused ?
>
> No, they are required for some of the macros used in the file so they need to
> stay in.
this needs to be documented as to why. other ports don't need this, and
it sounds like something wrong with the mips port that should be fixed at
some point.
-mike
Hello Andrew,
> > --- a/sim/testsuite/sim/mips/hilo-hazard-4.s
> > +++ b/sim/testsuite/sim/mips/hilo-hazard-4.s
> > @@ -5,11 +5,11 @@
> > # ld: -N -Ttext=0x80010000
> > # output: pass\\n
> >
> > -# Copyright (C) 2013 Imagination Technologies, Ltd.
> > +# Copyright (C) 2013-2015 Imagination Technologies, Ltd.
> > # All rights reserved.
Any reason why this file has a copyright header not citing
the FSF as the copyright holder? I am asking because although
the sim is not formally part of the GDB project, we do prefer
sim contributions to be assigned to the FSF.
Assuming this was just an oversight, would it be OK for me to change
the holder to the FSF?
Thank you!
> Any reason why this file has a copyright header not citing
> the FSF as the copyright holder? I am asking because although
> the sim is not formally part of the GDB project, we do prefer
> sim contributions to be assigned to the FSF.
I was following the convention from the mips32-dsp.s and mips32-dsp2.s
testsuite files.
> Assuming this was just an oversight, would it be OK for me to change
> the holder to the FSF?
Yes, that will be fine.
Regards,
Andrew
@@ -55,7 +55,9 @@ SIM_MICROMIPS_OBJ = \
micromipsrun.o \
-SIM_MULTI_OBJ = itable.o @sim_multi_obj@
+SIM_MULTI_OBJ = @sim_multi_obj@ \
+ itable.o \
+ multi-run.o \
MIPS_EXTRA_LIBS = @mips_extra_libs@
@@ -88,11 +90,11 @@ SIM_EXTRA_LIBS = $(MIPS_EXTRA_LIBS)
## COMMON_POST_CONFIG_FRAG
interp.o: $(srcdir)/interp.c config.h sim-main.h itable.h
-cp1.o: $(srcdir)/cp1.c config.h sim-main.h
-mdmx.o: $(srcdir)/mdmx.c $(srcdir)/sim-main.h
+m16run.o: sim-main.h m16_idecode.h m32_idecode.h m16run.c $(SIM_EXTRA_DEPS)
-dsp.o: $(srcdir)/dsp.c $(srcdir)/sim-main.h
+micromipsrun.o: sim-main.h micromips16_idecode.h micromips32_idecode.h \
+ micromips_m32_idecode.h micromipsrun.c $(SIM_EXTRA_DEPS)
multi-run.o: multi-include.h tmp-mach-multi
@@ -199,43 +201,6 @@ tmp-igen: $(IGEN_INSN) $(IGEN_DC) ../igen/igen $(IGEN_INCLUDE)
$(SHELL) $(srcdir)/../../move-if-change tmp-irun.c irun.c
touch tmp-igen
-semantics.o: sim-main.h semantics.c $(SIM_EXTRA_DEPS)
-engine.o: sim-main.h engine.c $(SIM_EXTRA_DEPS)
-support.o: sim-main.h support.c $(SIM_EXTRA_DEPS)
-idecode.o: sim-main.h idecode.c $(SIM_EXTRA_DEPS)
-itable.o: sim-main.h itable.c $(SIM_EXTRA_DEPS)
-m16run.o: sim-main.h m16_idecode.h m32_idecode.h m16run.c $(SIM_EXTRA_DEPS)
-micromipsrun.o: sim-main.h micromips16_idecode.h micromips32_idecode.h \
- micromips_m32_idecode.h micromipsrun.c $(SIM_EXTRA_DEPS)
-
-m16_semantics.o: sim-main.h m16_semantics.c $(SIM_EXTRA_DEPS)
-m16_support.o: sim-main.h m16_support.c $(SIM_EXTRA_DEPS)
-m16_idecode.o: sim-main.h m16_idecode.c $(SIM_EXTRA_DEPS)
-m16_icache.o: sim-main.h m16_icache.c $(SIM_EXTRA_DEPS)
-
-micromips_m32_semantics.o: sim-main.h micromips_m32_semantics.c \
- $(SIM_EXTRA_DEPS)
-micromips_m32_support.o: sim-main.h micromips_m32_support.c $(SIM_EXTRA_DEPS)
-micromips_m32_idecode.o: sim-main.h micromips_m32_idecode.c $(SIM_EXTRA_DEPS)
-micromips_m32_icache.o: sim-main.h micromips_m32_icache.c $(SIM_EXTRA_DEPS)
-
-m32_semantics.o: sim-main.h m32_semantics.c $(SIM_EXTRA_DEPS)
-m32_support.o: sim-main.h m32_support.c $(SIM_EXTRA_DEPS)
-m32_idecode.o: sim-main.h m32_idecode.c $(SIM_EXTRA_DEPS)
-m32_icache.o: sim-main.h m32_icache.c $(SIM_EXTRA_DEPS)
-
-micromips16_semantics.o: sim-main.h micromips16_semantics.c $(SIM_EXTRA_DEPS)
-micromips16_support.o: sim-main.h micromips16_support.c $(SIM_EXTRA_DEPS)
-micromips16_idecode.o: sim-main.h micromips16_idecode.c $(SIM_EXTRA_DEPS)
-micromips16_icache.o: sim-main.h micromips16_icache.c $(SIM_EXTRA_DEPS)
-
-micromips32_semantics.o: sim-main.h micromips32_semantics.c $(SIM_EXTRA_DEPS)
-micromips32_support.o: sim-main.h micromips32_support.c $(SIM_EXTRA_DEPS)
-micromips32_idecode.o: sim-main.h micromips32_idecode.c $(SIM_EXTRA_DEPS)
-micromips32_icache.o: sim-main.h micromips32_icache.c $(SIM_EXTRA_DEPS)
-
-$(SIM_MULTI_OBJ): sim-main.h $(SIM_EXTRA_DEPS)
-
BUILT_SRC_FROM_M16 = \
m16_icache.h \
m16_icache.c \
@@ -228,7 +228,7 @@ if test ${sim_gen} = MULTI; then
rm -f multi-include.h multi-run.c
sim_multi_flags=
sim_multi_src=
- sim_multi_obj=multi-run.o
+ sim_multi_obj=
sim_multi_igen_configs=
sim_seen_default=no
@@ -318,7 +318,7 @@ __EOF__
;;
*:*micromips32*:*)
# Run igen thrice, once for micromips32, once for micromips16,
- # and once for m32.
+ # and once for m32.
ws="micromips_m32 micromips16 micromips32"
# The top-level function for the micromips simulator is
@@ -330,7 +330,7 @@ __EOF__
;;
*:*micromips64*:*)
# Run igen thrice, once for micromips64, once for micromips16,
- # and once for m64.
+ # and once for m64.
ws="micromips_m64 micromips16 micromips64"
# The top-level function for the micromips simulator is
@@ -436,8 +436,6 @@ AC_SUBST(sim_multi_flags)
AC_SUBST(sim_multi_igen_configs)
AC_SUBST(sim_multi_src)
AC_SUBST(sim_multi_obj)
-
-
#
# Add simulated hardware devices
#
@@ -4,7 +4,7 @@
// Copyright (C) 2005-2015 Free Software Foundation, Inc.
// Contributed by MIPS Technologies, Inc. Written by Chao-ying Fu.
//
-// This file is part of GDB, the GNU debugger.
+// This file is part of the MIPS sim
//
// 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
@@ -5,7 +5,7 @@
// Contributed by MIPS Technologies, Inc.
// Written by Chao-ying Fu (fu@mips.com).
//
-// This file is part of GDB, the GNU debugger.
+// This file is part of the MIPS sim
//
// 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
@@ -146,9 +146,6 @@ static SIM_ADDR lsipmon_monitor_base = 0xBFC00200;
static SIM_RC sim_firmware_command (SIM_DESC sd, char* arg);
-/* microMIPS ISA mode */
-int isa_mode;
-
#define MEM_SIZE (8 << 20) /* 8 MBytes */
@@ -1,9 +1,9 @@
// Simulator definition for the micromips ASE.
-// Copyright (C) 2005-2013 Free Software Foundation, Inc.
+// Copyright (C) 2005-2015 Free Software Foundation, Inc.
// Contributed by Imagination Technologies, Ltd.
// Written by Andrew Bennett <andrew.bennett@imgtec.com>
//
-// This file is part of GDB, the GNU debugger.
+// This file is part of the MIPS sim.
//
// 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
@@ -53,7 +53,7 @@
:function:::address_word:process_isa_mode:address_word target
{
- isa_mode = target & 0x1;
+ SD->isa_mode = target & 0x1;
return (target & (-1 << 1));
}
@@ -1063,7 +1063,7 @@
address_word region = (NIA & MASK (63, 26));
NIA = do_micromips_jal (SD_, (region | (IMM_SHIFT_2BIT)) | ISA_MODE_MIPS32,
NIA, MICROMIPS_DELAYSLOT_SIZE_32);
- isa_mode = ISA_MODE_MIPS32;
+ SD->isa_mode = ISA_MODE_MIPS32;
}
000000,00000,5.RS,0000111100,111100:POOL32A:32::JR
@@ -1,9 +1,9 @@
// Simulator definition for the micromips DSP ASE.
-// Copyright (C) 2005-2013 Free Software Foundation, Inc.
+// Copyright (C) 2005-2015 Free Software Foundation, Inc.
// Contributed by Imagination Technologies, Ltd.
// Written by Andrew Bennett <andrew.bennett@imgtec.com>
//
-// This file is part of GDB, the GNU debugger.
+// This file is part of the MIPS sim.
//
// 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
@@ -1,10 +1,10 @@
/* Run function for the micromips simulator
- Copyright (C) 2005-2013 Free Software Foundation, Inc.
+ Copyright (C) 2005-2015 Free Software Foundation, Inc.
Contributed by Imagination Technologies, Ltd.
Written by Andrew Bennett <andrew.bennett@imgtec.com>.
- This file is part of GDB, the GNU debugger.
+ This file is part of the MIPS sim.
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
@@ -24,14 +24,11 @@
#include "micromips32_idecode.h"
#include "micromips_m32_idecode.h"
#include "bfd.h"
-
+#include "sim-engine.h"
#define SD sd
#define CPU cpu
-void
-sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus, int signal);
-
address_word
micromips_instruction_decode (SIM_DESC sd, sim_cpu * cpu,
address_word cia,
@@ -74,8 +71,8 @@ sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus,
{
micromips_m32_instruction_word instruction_0;
sim_cpu *cpu = STATE_CPU (sd, next_cpu_nr);
- micromips32_instruction_address cia = CIA_GET (cpu);
- isa_mode = ISA_MODE_MIPS32;
+ micromips32_instruction_address cia = CPU_PC_GET (cpu);
+ sd->isa_mode = ISA_MODE_MIPS32;
while (1)
{
@@ -87,17 +84,17 @@ sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus,
from the elf header.
2. Setting the correct isa mode after a MIPS32 jump or branch
instruction. */
- if ((isa_mode == ISA_MODE_MIPS32)
+ if ((sd->isa_mode == ISA_MODE_MIPS32)
&& ((cia & 0x1) == ISA_MODE_MICROMIPS))
{
- isa_mode = ISA_MODE_MICROMIPS;
+ sd->isa_mode = ISA_MODE_MICROMIPS;
cia = cia & ~0x1;
}
#if defined (ENGINE_ISSUE_PREFIX_HOOK)
ENGINE_ISSUE_PREFIX_HOOK ();
#endif
- switch (isa_mode)
+ switch (sd->isa_mode)
{
case ISA_MODE_MICROMIPS:
nia =
@@ -122,9 +119,9 @@ sim_engine_run (SIM_DESC sd, int next_cpu_nr, int nr_cpus,
/* process any events */
if (sim_events_tick (sd))
{
- CIA_SET (CPU, cia);
+ CPU_PC_SET (cpu, cia);
sim_events_process (sd);
- cia = CIA_GET (CPU);
+ cia = CPU_PC_GET (cpu);
}
}
}
@@ -4,7 +4,7 @@
// Copyright (C) 2004-2015 Free Software Foundation, Inc.
// Contributed by David Ung, of MIPS Technologies.
//
-// This file is part of GDB, the GNU debugger.
+// This file is part of the MIPS sim.
//
// 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
@@ -2,7 +2,7 @@
Copyright (C) 1997-2015 Free Software Foundation, Inc.
Contributed by Cygnus Support.
-This file is part of GDB, the GNU debugger.
+This file is part of the MIPS sim.
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
@@ -493,6 +493,9 @@ struct sim_state {
sim_cpu *cpu[MAX_NR_PROCESSORS];
+ /* microMIPS ISA mode. */
+ int isa_mode;
+
sim_state_base base;
};
@@ -5,11 +5,11 @@
# ld: -N -Ttext=0x80010000
# output: pass\\n
-# Copyright (C) 2013 Imagination Technologies, Ltd.
+# Copyright (C) 2013-2015 Imagination Technologies, Ltd.
# All rights reserved.
# Contributed by Andrew Bennett (andrew.bennett@imgtec.com)
#
-# This file is part of the GNU simulators.
+# This file is part of the MIPS sim.
#
# 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