forked from Imagelibrary/binutils-gdb
sim: cris: migrate from WITH_DEVICES to WITH_HW
The cris port was using the device framework to handle two addresses when the --cris-900000xx flag was specified. That can be implemented using the newer hardware framework instead which allows us to drop the device logic entirely, as well as delete the tconfig.h file. Basically we create a new cris_900000xx device model and move the read logic out of devices.c and into that. The rest of the devices logic was callback to the hardware framework already.
This commit is contained in:
Mike Frysinger
@@ -1,3 +1,15 @@
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2015-12-25 Mike Frysinger <vapier@gentoo.org>
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* configure.ac (SIM_AC_OPTION_HARDWARE): Change default to yes and
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add cris_900000xx.
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* configure: Regenerated.
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* devices.c: Delete file.
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* dv-cris_900000xx.c: New device model.
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* Makefile.in (SIM_OBJS): Delete devices.o.
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* sim-if.c (sim_open): Replace cris_have_900000xxif logic with a
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call to sim_hw_parse.
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* tconfig.h: Delete file.
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2015-12-25 Mike Frysinger <vapier@gentoo.org>
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* rvdummy.c (_GNU_SOURCE): Delete.
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@@ -29,7 +29,7 @@ SIM_OBJS = \
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sim-if.o arch.o \
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$(CRISV10F_OBJS) \
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$(CRISV32F_OBJS) \
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traps.o devices.o \
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traps.o \
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cris-desc.o
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# Extra headers included by sim-main.h.
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4
sim/cris/configure
vendored
4
sim/cris/configure
vendored
@@ -13362,7 +13362,7 @@ if test ""; then
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else
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hardware="cfi core pal glue"
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fi
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hardware="$hardware rv cris"
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hardware="$hardware rv cris cris_900000xx"
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sim_hw_cflags="-DWITH_HW=1"
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sim_hw="$hardware"
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@@ -13372,7 +13372,7 @@ sim_hw_objs="\$(SIM_COMMON_HW_OBJS) `echo $sim_hw | sed -e 's/\([^ ][^ ]*\)/dv-\
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if test "${enable_sim_hardware+set}" = set; then :
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enableval=$enable_sim_hardware;
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else
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enable_sim_hardware="no"
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enable_sim_hardware="yes"
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fi
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case ${enable_sim_hardware} in
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@@ -12,7 +12,7 @@ SIM_AC_OPTION_ALIGNMENT(NONSTRICT_ALIGNMENT)
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SIM_AC_OPTION_HOSTENDIAN
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SIM_AC_OPTION_SCACHE(16384)
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SIM_AC_OPTION_WARNINGS
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SIM_AC_OPTION_HARDWARE(no,,rv cris)
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SIM_AC_OPTION_HARDWARE(yes,,rv cris cris_900000xx)
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# The default model shouldn't matter as long as there's a BFD.
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SIM_AC_OPTION_DEFAULT_MODEL(crisv32)
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@@ -1,79 +0,0 @@
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/* CRIS device support
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Copyright (C) 2004-2015 Free Software Foundation, Inc.
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Contributed by Axis Communications.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Based on the i960 devices.c (for the purposes, the same as all the
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others). */
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#include "sim-main.h"
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#ifdef HAVE_DV_SOCKSER
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#include "dv-sockser.h"
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#endif
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#include "hw-device.h"
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/* Placeholder definition. */
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struct _device { char dummy; } cris_devices;
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int
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device_io_read_buffer (device *me ATTRIBUTE_UNUSED,
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void *source ATTRIBUTE_UNUSED,
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int space ATTRIBUTE_UNUSED,
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address_word addr ATTRIBUTE_UNUSED,
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unsigned nr_bytes ATTRIBUTE_UNUSED,
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SIM_DESC sd ATTRIBUTE_UNUSED,
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SIM_CPU *cpu ATTRIBUTE_UNUSED,
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sim_cia cia ATTRIBUTE_UNUSED)
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{
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#if WITH_HW
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return hw_io_read_buffer ((struct hw *) me, source, space, addr, nr_bytes);
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#else
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abort ();
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#endif
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}
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int
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device_io_write_buffer (device *me ATTRIBUTE_UNUSED,
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const void *source,
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int space ATTRIBUTE_UNUSED,
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address_word addr, unsigned nr_bytes,
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SIM_DESC sd, SIM_CPU *cpu, sim_cia cia)
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{
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static const unsigned char ok[] = { 4, 0, 0, 0x90};
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static const unsigned char bad[] = { 8, 0, 0, 0x90};
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if (cris_have_900000xxif)
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{
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if (addr == 0x90000004 && memcmp (source, ok, sizeof ok) == 0)
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return cris_break_13_handler (cpu, 1, 0, 0, 0, 0, 0, 0, cia);
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else if (addr == 0x90000008
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&& memcmp (source, bad, sizeof bad) == 0)
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return cris_break_13_handler (cpu, 1, 34, 0, 0, 0, 0, 0, cia);
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}
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#if WITH_HW
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else
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return hw_io_write_buffer ((struct hw *) me, source, space, addr, nr_bytes);
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#endif
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/* If it wasn't one of those, send an invalid-memory signal. */
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sim_core_signal (sd, cpu, cia, 0, nr_bytes, addr,
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write_transfer, sim_core_unmapped_signal);
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return 0;
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}
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91
sim/cris/dv-cris_900000xx.c
Normal file
91
sim/cris/dv-cris_900000xx.c
Normal file
@@ -0,0 +1,91 @@
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/* Handle 0x900000xx addresses in the sim.
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Copyright (C) 2004-2015 Free Software Foundation, Inc.
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Contributed by Axis Communications.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "sim-main.h"
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#include "hw-main.h"
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struct cris_900000xx_hw
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{
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};
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static unsigned
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cris_io_write_buffer (struct hw *me, const void *source,
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int space, address_word addr, unsigned nr_bytes)
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{
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static const unsigned char ok[] = { 4, 0, 0, 0x90};
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static const unsigned char bad[] = { 8, 0, 0, 0x90};
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SIM_CPU *cpu = hw_system_cpu (me);
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SIM_DESC sd = CPU_STATE (cpu);
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sim_cia cia = CPU_PC_GET (cpu);
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if (addr == 0x90000004 && memcmp (source, ok, sizeof ok) == 0)
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return cris_break_13_handler (cpu, 1, 0, 0, 0, 0, 0, 0, cia);
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else if (addr == 0x90000008
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&& memcmp (source, bad, sizeof bad) == 0)
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return cris_break_13_handler (cpu, 1, 34, 0, 0, 0, 0, 0, cia);
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/* If it wasn't one of those, send an invalid-memory signal. */
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sim_core_signal (sd, cpu, cia, 0, nr_bytes, addr,
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write_transfer, sim_core_unmapped_signal);
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return 0;
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}
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/* Instance initializer function. */
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static void
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attach_regs (struct hw *me, struct cris_900000xx_hw *hw)
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{
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address_word attach_address;
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int attach_space;
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unsigned attach_size;
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reg_property_spec reg;
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if (hw_find_property (me, "reg") == NULL)
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hw_abort (me, "Missing \"reg\" property");
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if (!hw_find_reg_array_property (me, "reg", 0, ®))
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hw_abort (me, "\"reg\" property must contain three addr/size entries");
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hw_unit_address_to_attach_address (hw_parent (me),
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®.address,
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&attach_space, &attach_address, me);
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hw_unit_size_to_attach_size (hw_parent (me), ®.size, &attach_size, me);
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hw_attach_address (hw_parent (me),
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0, attach_space, attach_address, attach_size, me);
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}
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static void
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cris_900000xx_finish (struct hw *me)
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{
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struct cris_900000xx_hw *hw;
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hw = HW_ZALLOC (me, struct cris_900000xx_hw);
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set_hw_data (me, hw);
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set_hw_io_write_buffer (me, cris_io_write_buffer);
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attach_regs (me, hw);
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}
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const struct hw_descriptor dv_cris_900000xx_descriptor[] = {
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{ "cris_900000xx", cris_900000xx_finish, },
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{ NULL },
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};
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@@ -977,18 +977,7 @@ sim_open (SIM_OPEN_KIND kind, host_callback *callback, struct bfd *abfd,
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/* Allocate simulator I/O managed memory if none specified by user. */
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if (cris_have_900000xxif)
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{
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if (sim_core_read_buffer (sd, NULL, read_map, &c, 0x90000000, 1) == 0)
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sim_core_attach (sd, NULL, 0, access_write, 0, 0x90000000, 0x100,
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0, &cris_devices, NULL);
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else
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{
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(*callback->
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printf_filtered) (callback,
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"Seeing --cris-900000xx with memory defined there\n");
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goto abandon_chip;
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}
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}
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sim_hw_parse (sd, "/core/%s/reg %#x %i", "cris_900000xx", 0x90000000, 0x100);
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/* Establish any remaining configuration options. */
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if (sim_config (sd) != SIM_RC_OK)
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@@ -1,30 +0,0 @@
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/* CRIS target configuration file. -*- C -*-
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Copyright (C) 2004-2015 Free Software Foundation, Inc.
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Contributed by Axis Communications.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef CRIS_TCONFIG_H
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#define CRIS_TCONFIG_H
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/* There's basically a a big ??? FIXME: CHECK THIS on everything in this
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file. I just copied it from m32r, pruned some stuff and added
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HAVE_MODEL because it seemed useful. */
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/* For MSPR support. FIXME: revisit. */
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#define WITH_DEVICES 1
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#endif /* CRIS_TCONFIG_H */
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@@ -1,3 +1,7 @@
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2015-12-25 Mike Frysinger <vapier@gentoo.org>
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* asm/io1.ms: Update expected output.
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2015-12-25 Mike Frysinger <vapier@gentoo.org>
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* hw/rv-n-cris/rvc.exp (rvdummy): Set up sane default.
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@@ -1,7 +1,7 @@
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# mach: crisv32
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# sim: --cris-900000xx --memory-region 0x90000000,0x10
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# xerror:
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# output: Seeing --cris-900000xx with memory defined there\n
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# output: /core/cris_900000xx: memory map 0:0x90000000..0x900000ff (256 bytes) overlaps 0:0x90000000..0x9000000f (16 bytes)\nQuit Simulator\n
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; Check that I/O region overlap is detected.
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