/* run front end support for arm
- Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1995-2019 Free Software Foundation, Inc.
-This file is part of ARM SIM.
+ This file is part of ARM SIM.
-GNU CC 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, or (at your option)
-any later version.
+ 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.
-GNU CC 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.
+ 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. */
+ 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 provides the interface between the simulator and run.c and gdb
- (when the simulator is linked with gdb).
+/* This file provides the interface between the simulator and
+ run.c and gdb (when the simulator is linked with gdb).
All simulator interaction should go through this file. */
+#include "config.h"
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <bfd.h>
#include <signal.h>
-#include "callback.h"
-#include "remote-sim.h"
-#include "armdefs.h"
+#include "gdb/callback.h"
+#include "gdb/remote-sim.h"
+#include "sim-main.h"
+#include "sim-options.h"
#include "armemu.h"
#include "dbg_rdi.h"
#include "ansidecl.h"
+#include "gdb/sim-arm.h"
+#include "gdb/signals.h"
+#include "libiberty.h"
+#include "iwmmxt.h"
+#include "maverick.h"
+/* TODO: This should get pulled from the SIM_DESC. */
host_callback *sim_callback;
-static struct ARMul_State *state;
-
-/* Who is using the simulator. */
-static SIM_OPEN_KIND sim_kind;
-
-/* argv[0] */
-static char *myname;
+/* TODO: This should get merged into sim_cpu. */
+struct ARMul_State *state;
/* Memory size in bytes. */
+/* TODO: Memory should be converted to the common memory module. */
static int mem_size = (1 << 21);
-/* Non-zero to display start up banner, and maybe other things. */
-static int verbosity;
+int stop_simulator;
-/* Non-zero to set big endian mode. */
-static int big_endian;
+#include "dis-asm.h"
-int stop_simulator;
+/* TODO: Tracing should be converted to common tracing module. */
+int trace = 0;
+int disas = 0;
+int trace_funcs = 0;
+
+static struct disassemble_info info;
+static char opbuf[1000];
+
+static int
+op_printf (char *buf, char *fmt, ...)
+{
+ int ret;
+ va_list ap;
+
+ va_start (ap, fmt);
+ ret = vsprintf (opbuf + strlen (opbuf), fmt, ap);
+ va_end (ap);
+ return ret;
+}
+
+static int
+sim_dis_read (bfd_vma memaddr ATTRIBUTE_UNUSED,
+ bfd_byte * ptr,
+ unsigned int length,
+ struct disassemble_info * info)
+{
+ ARMword val = (ARMword) *((ARMword *) info->application_data);
+
+ while (length--)
+ {
+ * ptr ++ = val & 0xFF;
+ val >>= 8;
+ }
+ return 0;
+}
+
+void
+print_insn (ARMword instr)
+{
+ int size;
+ disassembler_ftype disassemble_fn;
+
+ opbuf[0] = 0;
+ info.application_data = & instr;
+ disassemble_fn = disassembler (bfd_arch_arm, 0, 0, NULL);
+ size = disassemble_fn (0, & info);
+ fprintf (stderr, " %*s\n", size, opbuf);
+}
static void
-init ()
+init (void)
{
static int done;
{
ARMul_EmulateInit ();
state = ARMul_NewState ();
- state->bigendSig = (big_endian ? HIGH : LOW);
+ state->bigendSig = (CURRENT_TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? HIGH : LOW);
ARMul_MemoryInit (state, mem_size);
ARMul_OSInit (state);
- ARMul_CoProInit (state);
- state->verbose = verbosity;
+ state->verbose = 0;
done = 1;
}
}
-/* Set verbosity level of simulator.
- This is not intended to produce detailed tracing or debugging information.
- Just summaries. */
-/* FIXME: common/run.c doesn't do this yet. */
-
-void
-sim_set_verbose (v)
- int v;
-{
- verbosity = v;
-}
-
-/* Set the memory size to SIZE bytes.
- Must be called before initializing simulator. */
-/* FIXME: Rename to sim_set_mem_size. */
-
void
-sim_size (size)
- int size;
-{
- mem_size = size;
-}
-
-void
-ARMul_ConsolePrint (ARMul_State * state, const char *format, ...)
+ARMul_ConsolePrint (ARMul_State * state,
+ const char * format,
+ ...)
{
va_list ap;
}
}
-ARMword
-ARMul_Debug (ARMul_State * state ATTRIBUTE_UNUSED, ARMword pc ATTRIBUTE_UNUSED, ARMword instr ATTRIBUTE_UNUSED)
-{
- return 0;
-}
-
int
-sim_write (sd, addr, buffer, size)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- SIM_ADDR addr;
- unsigned char *buffer;
- int size;
+sim_write (SIM_DESC sd ATTRIBUTE_UNUSED,
+ SIM_ADDR addr,
+ const unsigned char * buffer,
+ int size)
{
int i;
+
init ();
+
for (i = 0; i < size; i++)
- {
- ARMul_WriteByte (state, addr + i, buffer[i]);
- }
+ ARMul_SafeWriteByte (state, addr + i, buffer[i]);
+
return size;
}
int
-sim_read (sd, addr, buffer, size)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- SIM_ADDR addr;
- unsigned char *buffer;
- int size;
+sim_read (SIM_DESC sd ATTRIBUTE_UNUSED,
+ SIM_ADDR addr,
+ unsigned char * buffer,
+ int size)
{
int i;
+
init ();
+
for (i = 0; i < size; i++)
- {
- buffer[i] = ARMul_ReadByte (state, addr + i);
- }
- return size;
-}
+ buffer[i] = ARMul_SafeReadByte (state, addr + i);
-int
-sim_trace (sd)
- SIM_DESC sd ATTRIBUTE_UNUSED;
-{
- (*sim_callback->printf_filtered) (sim_callback,
- "This simulator does not support tracing\n");
- return 1;
+ return size;
}
int
-sim_stop (sd)
- SIM_DESC sd ATTRIBUTE_UNUSED;
+sim_stop (SIM_DESC sd ATTRIBUTE_UNUSED)
{
state->Emulate = STOP;
stop_simulator = 1;
}
void
-sim_resume (sd, step, siggnal)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- int step;
- int siggnal ATTRIBUTE_UNUSED;
+sim_resume (SIM_DESC sd ATTRIBUTE_UNUSED,
+ int step,
+ int siggnal ATTRIBUTE_UNUSED)
{
state->EndCondition = 0;
stop_simulator = 0;
}
else
{
-#if 1 /* JGS */
state->NextInstr = RESUME; /* treat as PC change */
-#endif
state->Reg[15] = ARMul_DoProg (state);
}
}
SIM_RC
-sim_create_inferior (sd, abfd, argv, env)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- struct _bfd *abfd;
- char **argv;
- char **env;
+sim_create_inferior (SIM_DESC sd ATTRIBUTE_UNUSED,
+ struct bfd * abfd,
+ char * const *argv,
+ char * const *env)
{
int argvlen = 0;
int mach;
- char **arg;
+ char * const *arg;
+
+ init ();
if (abfd != NULL)
- ARMul_SetPC (state, bfd_get_start_address (abfd));
+ {
+ ARMul_SetPC (state, bfd_get_start_address (abfd));
+ mach = bfd_get_mach (abfd);
+ }
else
- ARMul_SetPC (state, 0); /* ??? */
-
- mach = bfd_get_mach (abfd);
-
- switch (mach) {
- default:
- (*sim_callback->printf_filtered) (sim_callback,
- "Unknown machine type; please update sim_create_inferior.\n");
- /* fall through */
-
- case 0: /* arm */
- /* We wouldn't set the machine type with earlier toolchains, so we
- explicitly select a processor capable of supporting all ARM
- 32bit mode. */
- /* fall through */
-
- case 5: /* armv4 */
- case 6: /* armv4t */
- case 7: /* armv5 */
- case 8: /* armv5t */
- ARMul_SelectProcessor (state, STRONGARM);
- /* Reset mode to ARM. A gdb user may rerun a program that had entered
- THUMB mode from the start and cause the ARM-mode startup code to be
- executed in THUMB mode. */
- ARMul_SetCPSR (state, THUMB2MODE);
- break;
-
- case 3: /* armv3 */
- case 4: /* armv3m */
- ARMul_SelectProcessor (state, ARM600);
- break;
-
- case 1: /* armv2 */
- case 2: /* armv2a */
- ARMul_SelectProcessor (state, ARM2);
- break;
- }
-
+ {
+ ARMul_SetPC (state, 0); /* ??? */
+ mach = 0;
+ }
+
+#ifdef MODET
+ if (abfd != NULL && (bfd_get_start_address (abfd) & 1))
+ SETT;
+#endif
+
+ switch (mach)
+ {
+ default:
+ (*sim_callback->printf_filtered)
+ (sim_callback,
+ "Unknown machine type '%d'; please update sim_create_inferior.\n",
+ mach);
+ /* fall through */
+
+ case 0:
+ /* We wouldn't set the machine type with earlier toolchains, so we
+ explicitly select a processor capable of supporting all ARMs in
+ 32bit mode. */
+ ARMul_SelectProcessor (state, ARM_v5_Prop | ARM_v5e_Prop | ARM_v6_Prop);
+ break;
+
+ case bfd_mach_arm_XScale:
+ ARMul_SelectProcessor (state, ARM_v5_Prop | ARM_v5e_Prop | ARM_XScale_Prop | ARM_v6_Prop);
+ break;
+
+ case bfd_mach_arm_iWMMXt2:
+ case bfd_mach_arm_iWMMXt:
+ {
+ extern int SWI_vector_installed;
+ ARMword i;
+
+ if (! SWI_vector_installed)
+ {
+ /* Intialise the hardware vectors to zero. */
+ if (! SWI_vector_installed)
+ for (i = ARMul_ResetV; i <= ARMFIQV; i += 4)
+ ARMul_WriteWord (state, i, 0);
+
+ /* ARM_WriteWord will have detected the write to the SWI vector,
+ but we want SWI_vector_installed to remain at 0 so that thumb
+ mode breakpoints will work. */
+ SWI_vector_installed = 0;
+ }
+ }
+ ARMul_SelectProcessor (state, ARM_v5_Prop | ARM_v5e_Prop | ARM_XScale_Prop | ARM_iWMMXt_Prop);
+ break;
+
+ case bfd_mach_arm_ep9312:
+ ARMul_SelectProcessor (state, ARM_v4_Prop | ARM_ep9312_Prop);
+ break;
+
+ case bfd_mach_arm_5:
+ if (bfd_family_coff (abfd))
+ {
+ /* This is a special case in order to support COFF based ARM toolchains.
+ The COFF header does not have enough room to store all the different
+ kinds of ARM cpu, so the XScale, v5T and v5TE architectures all default
+ to v5. (See coff_set_flags() in bdf/coffcode.h). So if we see a v5
+ machine type here, we assume it could be any of the above architectures
+ and so select the most feature-full. */
+ ARMul_SelectProcessor (state, ARM_v5_Prop | ARM_v5e_Prop | ARM_XScale_Prop);
+ break;
+ }
+ /* Otherwise drop through. */
+
+ case bfd_mach_arm_5T:
+ ARMul_SelectProcessor (state, ARM_v5_Prop);
+ break;
+
+ case bfd_mach_arm_5TE:
+ ARMul_SelectProcessor (state, ARM_v5_Prop | ARM_v5e_Prop);
+ break;
+
+ case bfd_mach_arm_4:
+ case bfd_mach_arm_4T:
+ ARMul_SelectProcessor (state, ARM_v4_Prop);
+ break;
+
+ case bfd_mach_arm_3:
+ case bfd_mach_arm_3M:
+ ARMul_SelectProcessor (state, ARM_Lock_Prop);
+ break;
+
+ case bfd_mach_arm_2:
+ case bfd_mach_arm_2a:
+ ARMul_SelectProcessor (state, ARM_Fix26_Prop);
+ break;
+ }
+
+ memset (& info, 0, sizeof (info));
+ INIT_DISASSEMBLE_INFO (info, stdout, op_printf);
+ info.read_memory_func = sim_dis_read;
+ info.arch = bfd_get_arch (abfd);
+ info.mach = bfd_get_mach (abfd);
+ info.endian_code = BFD_ENDIAN_LITTLE;
+ if (info.mach == 0)
+ info.arch = bfd_arch_arm;
+ disassemble_init_for_target (& info);
+
if (argv != NULL)
{
- /*
- ** Set up the command line (by laboriously stringing together the
- ** environment carefully picked apart by our caller...)
- */
- /* Free any old stuff */
+ /* Set up the command line by laboriously stringing together
+ the environment carefully picked apart by our caller. */
+
+ /* Free any old stuff. */
if (state->CommandLine != NULL)
{
free (state->CommandLine);
state->CommandLine = NULL;
}
- /* See how much we need */
+ /* See how much we need. */
for (arg = argv; *arg != NULL; arg++)
argvlen += strlen (*arg) + 1;
- /* allocate it... */
+ /* Allocate it. */
state->CommandLine = malloc (argvlen + 1);
if (state->CommandLine != NULL)
{
arg = argv;
state->CommandLine[0] = '\0';
+
for (arg = argv; *arg != NULL; arg++)
{
strcat (state->CommandLine, *arg);
if (env != NULL)
{
- /* Now see if there's a MEMSIZE spec in the environment */
+ /* Now see if there's a MEMSIZE spec in the environment. */
while (*env)
{
if (strncmp (*env, "MEMSIZE=", sizeof ("MEMSIZE=") - 1) == 0)
{
char *end_of_num;
- /* Set up memory limit */
+ /* Set up memory limit. */
state->MemSize =
strtoul (*env + sizeof ("MEMSIZE=") - 1, &end_of_num, 0);
}
return SIM_RC_OK;
}
-void
-sim_info (sd, verbose)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- int verbose ATTRIBUTE_UNUSED;
-{
-}
-
-
static int
-frommem (state, memory)
- struct ARMul_State *state;
- unsigned char *memory;
+frommem (struct ARMul_State *state, unsigned char *memory)
{
if (state->bigendSig == HIGH)
- {
- return (memory[0] << 24)
- | (memory[1] << 16) | (memory[2] << 8) | (memory[3] << 0);
- }
+ return (memory[0] << 24) | (memory[1] << 16)
+ | (memory[2] << 8) | (memory[3] << 0);
else
- {
- return (memory[3] << 24)
- | (memory[2] << 16) | (memory[1] << 8) | (memory[0] << 0);
- }
+ return (memory[3] << 24) | (memory[2] << 16)
+ | (memory[1] << 8) | (memory[0] << 0);
}
-
static void
-tomem (state, memory, val)
- struct ARMul_State *state;
- unsigned char *memory;
- int val;
+tomem (struct ARMul_State *state,
+ unsigned char *memory,
+ int val)
{
if (state->bigendSig == HIGH)
{
}
}
-int
-sim_store_register (sd, rn, memory, length)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- int rn;
- unsigned char *memory;
- int length ATTRIBUTE_UNUSED;
+static int
+arm_reg_store (SIM_CPU *cpu, int rn, unsigned char *memory, int length)
{
init ();
- if (rn == 25)
+
+ switch ((enum sim_arm_regs) rn)
{
+ case SIM_ARM_R0_REGNUM:
+ case SIM_ARM_R1_REGNUM:
+ case SIM_ARM_R2_REGNUM:
+ case SIM_ARM_R3_REGNUM:
+ case SIM_ARM_R4_REGNUM:
+ case SIM_ARM_R5_REGNUM:
+ case SIM_ARM_R6_REGNUM:
+ case SIM_ARM_R7_REGNUM:
+ case SIM_ARM_R8_REGNUM:
+ case SIM_ARM_R9_REGNUM:
+ case SIM_ARM_R10_REGNUM:
+ case SIM_ARM_R11_REGNUM:
+ case SIM_ARM_R12_REGNUM:
+ case SIM_ARM_R13_REGNUM:
+ case SIM_ARM_R14_REGNUM:
+ case SIM_ARM_R15_REGNUM: /* PC */
+ case SIM_ARM_FP0_REGNUM:
+ case SIM_ARM_FP1_REGNUM:
+ case SIM_ARM_FP2_REGNUM:
+ case SIM_ARM_FP3_REGNUM:
+ case SIM_ARM_FP4_REGNUM:
+ case SIM_ARM_FP5_REGNUM:
+ case SIM_ARM_FP6_REGNUM:
+ case SIM_ARM_FP7_REGNUM:
+ case SIM_ARM_FPS_REGNUM:
+ ARMul_SetReg (state, state->Mode, rn, frommem (state, memory));
+ break;
+
+ case SIM_ARM_PS_REGNUM:
state->Cpsr = frommem (state, memory);
- ARMul_CPSRAltered (state);
+ ARMul_CPSRAltered (state);
+ break;
+
+ case SIM_ARM_MAVERIC_COP0R0_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R1_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R2_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R3_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R4_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R5_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R6_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R7_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R8_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R9_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R10_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R11_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R12_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R13_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R14_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R15_REGNUM:
+ memcpy (& DSPregs [rn - SIM_ARM_MAVERIC_COP0R0_REGNUM],
+ memory, sizeof (struct maverick_regs));
+ return sizeof (struct maverick_regs);
+
+ case SIM_ARM_MAVERIC_DSPSC_REGNUM:
+ memcpy (&DSPsc, memory, sizeof DSPsc);
+ return sizeof DSPsc;
+
+ case SIM_ARM_IWMMXT_COP0R0_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R1_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R2_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R3_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R4_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R5_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R6_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R7_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R8_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R9_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R10_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R11_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R12_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R13_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R14_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R15_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R0_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R1_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R2_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R3_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R4_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R5_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R6_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R7_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R8_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R9_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R10_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R11_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R12_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R13_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R14_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R15_REGNUM:
+ return Store_Iwmmxt_Register (rn - SIM_ARM_IWMMXT_COP0R0_REGNUM, memory);
+
+ default:
+ return 0;
}
- else
- ARMul_SetReg (state, state->Mode, rn, frommem (state, memory));
- return -1;
+
+ return length;
}
-int
-sim_fetch_register (sd, rn, memory, length)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- int rn;
- unsigned char *memory;
- int length ATTRIBUTE_UNUSED;
+static int
+arm_reg_fetch (SIM_CPU *cpu, int rn, unsigned char *memory, int length)
{
ARMword regval;
+ int len = length;
init ();
- if (rn < 16)
- regval = ARMul_GetReg (state, state->Mode, rn);
- else if (rn == 25) /* FIXME: use PS_REGNUM from gdb/config/arm/tm-arm.h */
- regval = ARMul_GetCPSR (state);
- else
- regval = 0; /* FIXME: should report an error */
- tomem (state, memory, regval);
- return -1;
+
+ switch ((enum sim_arm_regs) rn)
+ {
+ case SIM_ARM_R0_REGNUM:
+ case SIM_ARM_R1_REGNUM:
+ case SIM_ARM_R2_REGNUM:
+ case SIM_ARM_R3_REGNUM:
+ case SIM_ARM_R4_REGNUM:
+ case SIM_ARM_R5_REGNUM:
+ case SIM_ARM_R6_REGNUM:
+ case SIM_ARM_R7_REGNUM:
+ case SIM_ARM_R8_REGNUM:
+ case SIM_ARM_R9_REGNUM:
+ case SIM_ARM_R10_REGNUM:
+ case SIM_ARM_R11_REGNUM:
+ case SIM_ARM_R12_REGNUM:
+ case SIM_ARM_R13_REGNUM:
+ case SIM_ARM_R14_REGNUM:
+ case SIM_ARM_R15_REGNUM: /* PC */
+ regval = ARMul_GetReg (state, state->Mode, rn);
+ break;
+
+ case SIM_ARM_FP0_REGNUM:
+ case SIM_ARM_FP1_REGNUM:
+ case SIM_ARM_FP2_REGNUM:
+ case SIM_ARM_FP3_REGNUM:
+ case SIM_ARM_FP4_REGNUM:
+ case SIM_ARM_FP5_REGNUM:
+ case SIM_ARM_FP6_REGNUM:
+ case SIM_ARM_FP7_REGNUM:
+ case SIM_ARM_FPS_REGNUM:
+ memset (memory, 0, length);
+ return 0;
+
+ case SIM_ARM_PS_REGNUM:
+ regval = ARMul_GetCPSR (state);
+ break;
+
+ case SIM_ARM_MAVERIC_COP0R0_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R1_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R2_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R3_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R4_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R5_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R6_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R7_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R8_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R9_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R10_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R11_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R12_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R13_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R14_REGNUM:
+ case SIM_ARM_MAVERIC_COP0R15_REGNUM:
+ memcpy (memory, & DSPregs [rn - SIM_ARM_MAVERIC_COP0R0_REGNUM],
+ sizeof (struct maverick_regs));
+ return sizeof (struct maverick_regs);
+
+ case SIM_ARM_MAVERIC_DSPSC_REGNUM:
+ memcpy (memory, & DSPsc, sizeof DSPsc);
+ return sizeof DSPsc;
+
+ case SIM_ARM_IWMMXT_COP0R0_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R1_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R2_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R3_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R4_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R5_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R6_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R7_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R8_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R9_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R10_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R11_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R12_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R13_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R14_REGNUM:
+ case SIM_ARM_IWMMXT_COP0R15_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R0_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R1_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R2_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R3_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R4_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R5_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R6_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R7_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R8_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R9_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R10_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R11_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R12_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R13_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R14_REGNUM:
+ case SIM_ARM_IWMMXT_COP1R15_REGNUM:
+ return Fetch_Iwmmxt_Register (rn - SIM_ARM_IWMMXT_COP0R0_REGNUM, memory);
+
+ default:
+ return 0;
+ }
+
+ while (len)
+ {
+ tomem (state, memory, regval);
+
+ len -= 4;
+ memory += 4;
+ regval = 0;
+ }
+
+ return length;
}
-SIM_DESC
-sim_open (kind, ptr, abfd, argv)
- SIM_OPEN_KIND kind;
- host_callback *ptr;
- struct _bfd *abfd;
- char **argv;
+typedef struct
{
- sim_kind = kind;
- if (myname) free (myname);
- myname = (char *) xstrdup (argv[0]);
- sim_callback = ptr;
-
- /* Decide upon the endian-ness of the processor.
- If we can, get the information from the bfd itself.
- Otherwise look to see if we have been given a command
- line switch that tells us. Otherwise default to little endian. */
- if (abfd != NULL)
- big_endian = bfd_big_endian (abfd);
- else if (argv[1] != NULL)
+ char * swi_option;
+ unsigned int swi_mask;
+} swi_options;
+
+#define SWI_SWITCH "--swi-support"
+
+static swi_options options[] =
+ {
+ { "none", 0 },
+ { "demon", SWI_MASK_DEMON },
+ { "angel", SWI_MASK_ANGEL },
+ { "redboot", SWI_MASK_REDBOOT },
+ { "all", -1 },
+ { "NONE", 0 },
+ { "DEMON", SWI_MASK_DEMON },
+ { "ANGEL", SWI_MASK_ANGEL },
+ { "REDBOOT", SWI_MASK_REDBOOT },
+ { "ALL", -1 }
+ };
+
+
+static int
+sim_target_parse_command_line (int argc, char ** argv)
+{
+ int i;
+
+ for (i = 1; i < argc; i++)
{
- int i;
+ char * ptr = argv[i];
+ int arg;
- /* Scan for endian-ness switch. */
- for (i = 0; (argv[i] != NULL) && (argv[i][0] != 0); i++)
- if (argv[i][0] == '-' && argv[i][1] == 'E')
- {
- char c;
+ if ((ptr == NULL) || (* ptr != '-'))
+ break;
- if ((c = argv[i][2]) == 0)
- {
- ++i;
- c = argv[i][0];
- }
+ if (strcmp (ptr, "-t") == 0)
+ {
+ trace = 1;
+ continue;
+ }
- switch (c)
- {
- case 0:
- sim_callback->printf_filtered
- (sim_callback, "No argument to -E option provided\n");
- break;
+ if (strcmp (ptr, "-z") == 0)
+ {
+ /* Remove this option from the argv array. */
+ for (arg = i; arg < argc; arg ++)
+ argv[arg] = argv[arg + 1];
+ argc --;
+ i --;
+ trace_funcs = 1;
+ continue;
+ }
- case 'b':
- case 'B':
- big_endian = 1;
- break;
+ if (strcmp (ptr, "-d") == 0)
+ {
+ /* Remove this option from the argv array. */
+ for (arg = i; arg < argc; arg ++)
+ argv[arg] = argv[arg + 1];
+ argc --;
+ i --;
+ disas = 1;
+ continue;
+ }
- case 'l':
- case 'L':
- big_endian = 0;
- break;
+ if (strncmp (ptr, SWI_SWITCH, sizeof SWI_SWITCH - 1) != 0)
+ continue;
+
+ if (ptr[sizeof SWI_SWITCH - 1] == 0)
+ {
+ /* Remove this option from the argv array. */
+ for (arg = i; arg < argc; arg ++)
+ argv[arg] = argv[arg + 1];
+ argc --;
+
+ ptr = argv[i];
+ }
+ else
+ ptr += sizeof SWI_SWITCH;
+
+ swi_mask = 0;
+
+ while (* ptr)
+ {
+ int i;
+
+ for (i = ARRAY_SIZE (options); i--;)
+ if (strncmp (ptr, options[i].swi_option,
+ strlen (options[i].swi_option)) == 0)
+ {
+ swi_mask |= options[i].swi_mask;
+ ptr += strlen (options[i].swi_option);
+
+ if (* ptr == ',')
+ ++ ptr;
- default:
- sim_callback->printf_filtered
- (sim_callback, "Unrecognised argument to -E option\n");
break;
}
- }
+
+ if (i < 0)
+ break;
+ }
+
+ if (* ptr != 0)
+ fprintf (stderr, "Ignoring swi options: %s\n", ptr);
+
+ /* Remove this option from the argv array. */
+ for (arg = i; arg < argc; arg ++)
+ argv[arg] = argv[arg + 1];
+ argc --;
+ i --;
}
+ return argc;
+}
- return (SIM_DESC) 1;
+static void
+sim_target_parse_arg_array (char ** argv)
+{
+ sim_target_parse_command_line (countargv (argv), argv);
}
-void
-sim_close (sd, quitting)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- int quitting ATTRIBUTE_UNUSED;
+static sim_cia
+arm_pc_get (sim_cpu *cpu)
{
- if (myname) free (myname);
- myname = NULL;
+ return PC;
}
-SIM_RC
-sim_load (sd, prog, abfd, from_tty)
- SIM_DESC sd;
- char *prog;
- bfd *abfd;
- int from_tty ATTRIBUTE_UNUSED;
+static void
+arm_pc_set (sim_cpu *cpu, sim_cia pc)
{
- extern bfd *sim_load_file (); /* ??? Don't know where this should live. */
- bfd *prog_bfd;
-
- prog_bfd = sim_load_file (sd, myname, sim_callback, prog, abfd,
- sim_kind == SIM_OPEN_DEBUG, 0, sim_write);
- if (prog_bfd == NULL)
- return SIM_RC_FAIL;
- ARMul_SetPC (state, bfd_get_start_address (prog_bfd));
- if (abfd == NULL)
- bfd_close (prog_bfd);
- return SIM_RC_OK;
+ ARMul_SetPC (state, pc);
+}
+
+static void
+free_state (SIM_DESC sd)
+{
+ if (STATE_MODULES (sd) != NULL)
+ sim_module_uninstall (sd);
+ sim_cpu_free_all (sd);
+ sim_state_free (sd);
+}
+
+SIM_DESC
+sim_open (SIM_OPEN_KIND kind,
+ host_callback *cb,
+ struct bfd *abfd,
+ char * const *argv)
+{
+ int i;
+ SIM_DESC sd = sim_state_alloc (kind, cb);
+ SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
+
+ /* The cpu data is kept in a separately allocated chunk of memory. */
+ if (sim_cpu_alloc_all (sd, 1, /*cgen_cpu_max_extra_bytes ()*/0) != SIM_RC_OK)
+ {
+ free_state (sd);
+ return 0;
+ }
+
+ if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
+ {
+ free_state (sd);
+ return 0;
+ }
+
+ /* The parser will print an error message for us, so we silently return. */
+ if (sim_parse_args (sd, argv) != SIM_RC_OK)
+ {
+ free_state (sd);
+ return 0;
+ }
+
+ /* Check for/establish the a reference program image. */
+ if (sim_analyze_program (sd,
+ (STATE_PROG_ARGV (sd) != NULL
+ ? *STATE_PROG_ARGV (sd)
+ : NULL), abfd) != SIM_RC_OK)
+ {
+ free_state (sd);
+ return 0;
+ }
+
+ /* Configure/verify the target byte order and other runtime
+ configuration options. */
+ if (sim_config (sd) != SIM_RC_OK)
+ {
+ sim_module_uninstall (sd);
+ return 0;
+ }
+
+ if (sim_post_argv_init (sd) != SIM_RC_OK)
+ {
+ /* Uninstall the modules to avoid memory leaks,
+ file descriptor leaks, etc. */
+ sim_module_uninstall (sd);
+ return 0;
+ }
+
+ /* CPU specific initialization. */
+ for (i = 0; i < MAX_NR_PROCESSORS; ++i)
+ {
+ SIM_CPU *cpu = STATE_CPU (sd, i);
+
+ CPU_REG_FETCH (cpu) = arm_reg_fetch;
+ CPU_REG_STORE (cpu) = arm_reg_store;
+ CPU_PC_FETCH (cpu) = arm_pc_get;
+ CPU_PC_STORE (cpu) = arm_pc_set;
+ }
+
+ sim_callback = cb;
+
+ sim_target_parse_arg_array (argv);
+
+ if (argv[1] != NULL)
+ {
+ int i;
+
+ /* Scan for memory-size switches. */
+ for (i = 0; (argv[i] != NULL) && (argv[i][0] != 0); i++)
+ if (argv[i][0] == '-' && argv[i][1] == 'm')
+ {
+ if (argv[i][2] != '\0')
+ mem_size = atoi (&argv[i][2]);
+ else if (argv[i + 1] != NULL)
+ {
+ mem_size = atoi (argv[i + 1]);
+ i++;
+ }
+ else
+ {
+ sim_callback->printf_filtered (sim_callback,
+ "Missing argument to -m option\n");
+ return NULL;
+ }
+ }
+ }
+
+ return sd;
}
void
-sim_stop_reason (sd, reason, sigrc)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- enum sim_stop *reason;
- int *sigrc;
+sim_stop_reason (SIM_DESC sd ATTRIBUTE_UNUSED,
+ enum sim_stop *reason,
+ int *sigrc)
{
if (stop_simulator)
{
*reason = sim_stopped;
- *sigrc = SIGINT;
+ *sigrc = GDB_SIGNAL_INT;
}
else if (state->EndCondition == 0)
{
{
*reason = sim_stopped;
if (state->EndCondition == RDIError_BreakpointReached)
- *sigrc = SIGTRAP;
+ *sigrc = GDB_SIGNAL_TRAP;
+ else if ( state->EndCondition == RDIError_DataAbort
+ || state->EndCondition == RDIError_AddressException)
+ *sigrc = GDB_SIGNAL_BUS;
else
*sigrc = 0;
}
}
-
-void
-sim_do_command (sd, cmd)
- SIM_DESC sd ATTRIBUTE_UNUSED;
- char *cmd ATTRIBUTE_UNUSED;
-{
- (*sim_callback->printf_filtered) (sim_callback,
- "This simulator does not accept any commands.\n");
-}
-
-
-void
-sim_set_callbacks (ptr)
- host_callback *ptr;
-{
- sim_callback = ptr;
-}