1 /* run front end support for arm
2 Copyright (C) 1995-2013 Free Software Foundation, Inc.
4 This file is part of ARM SIM.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 /* This file provides the interface between the simulator and
20 run.c and gdb (when the simulator is linked with gdb).
21 All simulator interaction should go through this file. */
29 #include "gdb/callback.h"
30 #include "gdb/remote-sim.h"
35 #include "sim-utils.h"
37 #include "gdb/sim-arm.h"
38 #include "gdb/signals.h"
39 #include "libiberty.h"
41 host_callback *sim_callback;
43 static struct ARMul_State *state;
45 /* Who is using the simulator. */
46 static SIM_OPEN_KIND sim_kind;
51 /* Memory size in bytes. */
52 static int mem_size = (1 << 21);
54 /* Non-zero to display start up banner, and maybe other things. */
57 /* Non-zero to set big endian mode. */
58 static int big_endian;
62 /* Cirrus DSP registers.
64 We need to define these registers outside of maverick.c because
65 maverick.c might not be linked in unless --target=arm9e-* in which
66 case wrapper.c will not compile because it tries to access Cirrus
67 registers. This should all go away once we get the Cirrus and ARM
68 Coprocessor to coexist in armcopro.c-- aldyh. */
85 union maverick_acc_regs
87 long double ld; /* Acc registers are 72-bits. */
90 struct maverick_regs DSPregs[16];
91 union maverick_acc_regs DSPacc[4];
101 ARMul_EmulateInit ();
102 state = ARMul_NewState ();
103 state->bigendSig = (big_endian ? HIGH : LOW);
104 ARMul_MemoryInit (state, mem_size);
105 ARMul_OSInit (state);
106 state->verbose = verbosity;
111 /* Set verbosity level of simulator.
112 This is not intended to produce detailed tracing or debugging information.
114 /* FIXME: common/run.c doesn't do this yet. */
123 /* Set the memory size to SIZE bytes.
124 Must be called before initializing simulator. */
125 /* FIXME: Rename to sim_set_mem_size. */
135 ARMul_ConsolePrint VPARAMS ((ARMul_State * state,
143 va_start (ap, format);
144 vprintf (format, ap);
150 ARMul_Debug (state, pc, instr)
151 ARMul_State * state ATTRIBUTE_UNUSED;
152 ARMword pc ATTRIBUTE_UNUSED;
153 ARMword instr ATTRIBUTE_UNUSED;
159 sim_write (sd, addr, buffer, size)
160 SIM_DESC sd ATTRIBUTE_UNUSED;
162 const unsigned char * buffer;
169 for (i = 0; i < size; i++)
170 ARMul_SafeWriteByte (state, addr + i, buffer[i]);
176 sim_read (sd, addr, buffer, size)
177 SIM_DESC sd ATTRIBUTE_UNUSED;
179 unsigned char * buffer;
186 for (i = 0; i < size; i++)
187 buffer[i] = ARMul_SafeReadByte (state, addr + i);
194 SIM_DESC sd ATTRIBUTE_UNUSED;
196 (*sim_callback->printf_filtered)
198 "This simulator does not support tracing\n");
204 SIM_DESC sd ATTRIBUTE_UNUSED;
206 state->Emulate = STOP;
212 sim_resume (sd, step, siggnal)
213 SIM_DESC sd ATTRIBUTE_UNUSED;
215 int siggnal ATTRIBUTE_UNUSED;
217 state->EndCondition = 0;
222 state->Reg[15] = ARMul_DoInstr (state);
223 if (state->EndCondition == 0)
224 state->EndCondition = RDIError_BreakpointReached;
228 state->NextInstr = RESUME; /* treat as PC change */
229 state->Reg[15] = ARMul_DoProg (state);
236 sim_create_inferior (sd, abfd, argv, env)
237 SIM_DESC sd ATTRIBUTE_UNUSED;
250 ARMul_SetPC (state, bfd_get_start_address (abfd));
251 mach = bfd_get_mach (abfd);
255 ARMul_SetPC (state, 0); /* ??? */
262 (*sim_callback->printf_filtered)
264 "Unknown machine type '%d'; please update sim_create_inferior.\n",
269 /* We wouldn't set the machine type with earlier toolchains, so we
270 explicitly select a processor capable of supporting all ARMs in
272 /* We choose the XScale rather than the iWMMXt, because the iWMMXt
273 removes the FPE emulator, since it conflicts with its coprocessors.
274 For the most generic ARM support, we want the FPE emulator in place. */
275 case bfd_mach_arm_XScale:
276 ARMul_SelectProcessor (state, ARM_v5_Prop | ARM_v5e_Prop | ARM_XScale_Prop | ARM_v6_Prop);
279 case bfd_mach_arm_iWMMXt2:
280 case bfd_mach_arm_iWMMXt:
282 extern int SWI_vector_installed;
285 if (! SWI_vector_installed)
287 /* Intialise the hardware vectors to zero. */
288 if (! SWI_vector_installed)
289 for (i = ARMul_ResetV; i <= ARMFIQV; i += 4)
290 ARMul_WriteWord (state, i, 0);
292 /* ARM_WriteWord will have detected the write to the SWI vector,
293 but we want SWI_vector_installed to remain at 0 so that thumb
294 mode breakpoints will work. */
295 SWI_vector_installed = 0;
298 ARMul_SelectProcessor (state, ARM_v5_Prop | ARM_v5e_Prop | ARM_XScale_Prop | ARM_iWMMXt_Prop);
301 case bfd_mach_arm_ep9312:
302 ARMul_SelectProcessor (state, ARM_v4_Prop | ARM_ep9312_Prop);
306 if (bfd_family_coff (abfd))
308 /* This is a special case in order to support COFF based ARM toolchains.
309 The COFF header does not have enough room to store all the different
310 kinds of ARM cpu, so the XScale, v5T and v5TE architectures all default
311 to v5. (See coff_set_flags() in bdf/coffcode.h). So if we see a v5
312 machine type here, we assume it could be any of the above architectures
313 and so select the most feature-full. */
314 ARMul_SelectProcessor (state, ARM_v5_Prop | ARM_v5e_Prop | ARM_XScale_Prop);
317 /* Otherwise drop through. */
319 case bfd_mach_arm_5T:
320 ARMul_SelectProcessor (state, ARM_v5_Prop);
323 case bfd_mach_arm_5TE:
324 ARMul_SelectProcessor (state, ARM_v5_Prop | ARM_v5e_Prop);
328 case bfd_mach_arm_4T:
329 ARMul_SelectProcessor (state, ARM_v4_Prop);
333 case bfd_mach_arm_3M:
334 ARMul_SelectProcessor (state, ARM_Lock_Prop);
338 case bfd_mach_arm_2a:
339 ARMul_SelectProcessor (state, ARM_Fix26_Prop);
343 if ( mach != bfd_mach_arm_3
344 && mach != bfd_mach_arm_3M
345 && mach != bfd_mach_arm_2
346 && mach != bfd_mach_arm_2a)
348 /* Reset mode to ARM. A gdb user may rerun a program that had entered
349 THUMB mode from the start and cause the ARM-mode startup code to be
350 executed in THUMB mode. */
351 ARMul_SetCPSR (state, SVC32MODE);
356 /* Set up the command line by laboriously stringing together
357 the environment carefully picked apart by our caller. */
359 /* Free any old stuff. */
360 if (state->CommandLine != NULL)
362 free (state->CommandLine);
363 state->CommandLine = NULL;
366 /* See how much we need. */
367 for (arg = argv; *arg != NULL; arg++)
368 argvlen += strlen (*arg) + 1;
371 state->CommandLine = malloc (argvlen + 1);
372 if (state->CommandLine != NULL)
375 state->CommandLine[0] = '\0';
377 for (arg = argv; *arg != NULL; arg++)
379 strcat (state->CommandLine, *arg);
380 strcat (state->CommandLine, " ");
387 /* Now see if there's a MEMSIZE spec in the environment. */
390 if (strncmp (*env, "MEMSIZE=", sizeof ("MEMSIZE=") - 1) == 0)
394 /* Set up memory limit. */
396 strtoul (*env + sizeof ("MEMSIZE=") - 1, &end_of_num, 0);
406 sim_info (sd, verbose)
407 SIM_DESC sd ATTRIBUTE_UNUSED;
408 int verbose ATTRIBUTE_UNUSED;
413 frommem (state, memory)
414 struct ARMul_State *state;
415 unsigned char *memory;
417 if (state->bigendSig == HIGH)
418 return (memory[0] << 24) | (memory[1] << 16)
419 | (memory[2] << 8) | (memory[3] << 0);
421 return (memory[3] << 24) | (memory[2] << 16)
422 | (memory[1] << 8) | (memory[0] << 0);
426 tomem (state, memory, val)
427 struct ARMul_State *state;
428 unsigned char *memory;
431 if (state->bigendSig == HIGH)
433 memory[0] = val >> 24;
434 memory[1] = val >> 16;
435 memory[2] = val >> 8;
436 memory[3] = val >> 0;
440 memory[3] = val >> 24;
441 memory[2] = val >> 16;
442 memory[1] = val >> 8;
443 memory[0] = val >> 0;
448 sim_store_register (sd, rn, memory, length)
449 SIM_DESC sd ATTRIBUTE_UNUSED;
451 unsigned char *memory;
456 switch ((enum sim_arm_regs) rn)
458 case SIM_ARM_R0_REGNUM:
459 case SIM_ARM_R1_REGNUM:
460 case SIM_ARM_R2_REGNUM:
461 case SIM_ARM_R3_REGNUM:
462 case SIM_ARM_R4_REGNUM:
463 case SIM_ARM_R5_REGNUM:
464 case SIM_ARM_R6_REGNUM:
465 case SIM_ARM_R7_REGNUM:
466 case SIM_ARM_R8_REGNUM:
467 case SIM_ARM_R9_REGNUM:
468 case SIM_ARM_R10_REGNUM:
469 case SIM_ARM_R11_REGNUM:
470 case SIM_ARM_R12_REGNUM:
471 case SIM_ARM_R13_REGNUM:
472 case SIM_ARM_R14_REGNUM:
473 case SIM_ARM_R15_REGNUM: /* PC */
474 case SIM_ARM_FP0_REGNUM:
475 case SIM_ARM_FP1_REGNUM:
476 case SIM_ARM_FP2_REGNUM:
477 case SIM_ARM_FP3_REGNUM:
478 case SIM_ARM_FP4_REGNUM:
479 case SIM_ARM_FP5_REGNUM:
480 case SIM_ARM_FP6_REGNUM:
481 case SIM_ARM_FP7_REGNUM:
482 case SIM_ARM_FPS_REGNUM:
483 ARMul_SetReg (state, state->Mode, rn, frommem (state, memory));
486 case SIM_ARM_PS_REGNUM:
487 state->Cpsr = frommem (state, memory);
488 ARMul_CPSRAltered (state);
491 case SIM_ARM_MAVERIC_COP0R0_REGNUM:
492 case SIM_ARM_MAVERIC_COP0R1_REGNUM:
493 case SIM_ARM_MAVERIC_COP0R2_REGNUM:
494 case SIM_ARM_MAVERIC_COP0R3_REGNUM:
495 case SIM_ARM_MAVERIC_COP0R4_REGNUM:
496 case SIM_ARM_MAVERIC_COP0R5_REGNUM:
497 case SIM_ARM_MAVERIC_COP0R6_REGNUM:
498 case SIM_ARM_MAVERIC_COP0R7_REGNUM:
499 case SIM_ARM_MAVERIC_COP0R8_REGNUM:
500 case SIM_ARM_MAVERIC_COP0R9_REGNUM:
501 case SIM_ARM_MAVERIC_COP0R10_REGNUM:
502 case SIM_ARM_MAVERIC_COP0R11_REGNUM:
503 case SIM_ARM_MAVERIC_COP0R12_REGNUM:
504 case SIM_ARM_MAVERIC_COP0R13_REGNUM:
505 case SIM_ARM_MAVERIC_COP0R14_REGNUM:
506 case SIM_ARM_MAVERIC_COP0R15_REGNUM:
507 memcpy (& DSPregs [rn - SIM_ARM_MAVERIC_COP0R0_REGNUM],
508 memory, sizeof (struct maverick_regs));
509 return sizeof (struct maverick_regs);
511 case SIM_ARM_MAVERIC_DSPSC_REGNUM:
512 memcpy (&DSPsc, memory, sizeof DSPsc);
515 case SIM_ARM_IWMMXT_COP0R0_REGNUM:
516 case SIM_ARM_IWMMXT_COP0R1_REGNUM:
517 case SIM_ARM_IWMMXT_COP0R2_REGNUM:
518 case SIM_ARM_IWMMXT_COP0R3_REGNUM:
519 case SIM_ARM_IWMMXT_COP0R4_REGNUM:
520 case SIM_ARM_IWMMXT_COP0R5_REGNUM:
521 case SIM_ARM_IWMMXT_COP0R6_REGNUM:
522 case SIM_ARM_IWMMXT_COP0R7_REGNUM:
523 case SIM_ARM_IWMMXT_COP0R8_REGNUM:
524 case SIM_ARM_IWMMXT_COP0R9_REGNUM:
525 case SIM_ARM_IWMMXT_COP0R10_REGNUM:
526 case SIM_ARM_IWMMXT_COP0R11_REGNUM:
527 case SIM_ARM_IWMMXT_COP0R12_REGNUM:
528 case SIM_ARM_IWMMXT_COP0R13_REGNUM:
529 case SIM_ARM_IWMMXT_COP0R14_REGNUM:
530 case SIM_ARM_IWMMXT_COP0R15_REGNUM:
531 case SIM_ARM_IWMMXT_COP1R0_REGNUM:
532 case SIM_ARM_IWMMXT_COP1R1_REGNUM:
533 case SIM_ARM_IWMMXT_COP1R2_REGNUM:
534 case SIM_ARM_IWMMXT_COP1R3_REGNUM:
535 case SIM_ARM_IWMMXT_COP1R4_REGNUM:
536 case SIM_ARM_IWMMXT_COP1R5_REGNUM:
537 case SIM_ARM_IWMMXT_COP1R6_REGNUM:
538 case SIM_ARM_IWMMXT_COP1R7_REGNUM:
539 case SIM_ARM_IWMMXT_COP1R8_REGNUM:
540 case SIM_ARM_IWMMXT_COP1R9_REGNUM:
541 case SIM_ARM_IWMMXT_COP1R10_REGNUM:
542 case SIM_ARM_IWMMXT_COP1R11_REGNUM:
543 case SIM_ARM_IWMMXT_COP1R12_REGNUM:
544 case SIM_ARM_IWMMXT_COP1R13_REGNUM:
545 case SIM_ARM_IWMMXT_COP1R14_REGNUM:
546 case SIM_ARM_IWMMXT_COP1R15_REGNUM:
547 return Store_Iwmmxt_Register (rn - SIM_ARM_IWMMXT_COP0R0_REGNUM, memory);
557 sim_fetch_register (sd, rn, memory, length)
558 SIM_DESC sd ATTRIBUTE_UNUSED;
560 unsigned char *memory;
568 switch ((enum sim_arm_regs) rn)
570 case SIM_ARM_R0_REGNUM:
571 case SIM_ARM_R1_REGNUM:
572 case SIM_ARM_R2_REGNUM:
573 case SIM_ARM_R3_REGNUM:
574 case SIM_ARM_R4_REGNUM:
575 case SIM_ARM_R5_REGNUM:
576 case SIM_ARM_R6_REGNUM:
577 case SIM_ARM_R7_REGNUM:
578 case SIM_ARM_R8_REGNUM:
579 case SIM_ARM_R9_REGNUM:
580 case SIM_ARM_R10_REGNUM:
581 case SIM_ARM_R11_REGNUM:
582 case SIM_ARM_R12_REGNUM:
583 case SIM_ARM_R13_REGNUM:
584 case SIM_ARM_R14_REGNUM:
585 case SIM_ARM_R15_REGNUM: /* PC */
586 regval = ARMul_GetReg (state, state->Mode, rn);
589 case SIM_ARM_FP0_REGNUM:
590 case SIM_ARM_FP1_REGNUM:
591 case SIM_ARM_FP2_REGNUM:
592 case SIM_ARM_FP3_REGNUM:
593 case SIM_ARM_FP4_REGNUM:
594 case SIM_ARM_FP5_REGNUM:
595 case SIM_ARM_FP6_REGNUM:
596 case SIM_ARM_FP7_REGNUM:
597 case SIM_ARM_FPS_REGNUM:
598 memset (memory, 0, length);
601 case SIM_ARM_PS_REGNUM:
602 regval = ARMul_GetCPSR (state);
605 case SIM_ARM_MAVERIC_COP0R0_REGNUM:
606 case SIM_ARM_MAVERIC_COP0R1_REGNUM:
607 case SIM_ARM_MAVERIC_COP0R2_REGNUM:
608 case SIM_ARM_MAVERIC_COP0R3_REGNUM:
609 case SIM_ARM_MAVERIC_COP0R4_REGNUM:
610 case SIM_ARM_MAVERIC_COP0R5_REGNUM:
611 case SIM_ARM_MAVERIC_COP0R6_REGNUM:
612 case SIM_ARM_MAVERIC_COP0R7_REGNUM:
613 case SIM_ARM_MAVERIC_COP0R8_REGNUM:
614 case SIM_ARM_MAVERIC_COP0R9_REGNUM:
615 case SIM_ARM_MAVERIC_COP0R10_REGNUM:
616 case SIM_ARM_MAVERIC_COP0R11_REGNUM:
617 case SIM_ARM_MAVERIC_COP0R12_REGNUM:
618 case SIM_ARM_MAVERIC_COP0R13_REGNUM:
619 case SIM_ARM_MAVERIC_COP0R14_REGNUM:
620 case SIM_ARM_MAVERIC_COP0R15_REGNUM:
621 memcpy (memory, & DSPregs [rn - SIM_ARM_MAVERIC_COP0R0_REGNUM],
622 sizeof (struct maverick_regs));
623 return sizeof (struct maverick_regs);
625 case SIM_ARM_MAVERIC_DSPSC_REGNUM:
626 memcpy (memory, & DSPsc, sizeof DSPsc);
629 case SIM_ARM_IWMMXT_COP0R0_REGNUM:
630 case SIM_ARM_IWMMXT_COP0R1_REGNUM:
631 case SIM_ARM_IWMMXT_COP0R2_REGNUM:
632 case SIM_ARM_IWMMXT_COP0R3_REGNUM:
633 case SIM_ARM_IWMMXT_COP0R4_REGNUM:
634 case SIM_ARM_IWMMXT_COP0R5_REGNUM:
635 case SIM_ARM_IWMMXT_COP0R6_REGNUM:
636 case SIM_ARM_IWMMXT_COP0R7_REGNUM:
637 case SIM_ARM_IWMMXT_COP0R8_REGNUM:
638 case SIM_ARM_IWMMXT_COP0R9_REGNUM:
639 case SIM_ARM_IWMMXT_COP0R10_REGNUM:
640 case SIM_ARM_IWMMXT_COP0R11_REGNUM:
641 case SIM_ARM_IWMMXT_COP0R12_REGNUM:
642 case SIM_ARM_IWMMXT_COP0R13_REGNUM:
643 case SIM_ARM_IWMMXT_COP0R14_REGNUM:
644 case SIM_ARM_IWMMXT_COP0R15_REGNUM:
645 case SIM_ARM_IWMMXT_COP1R0_REGNUM:
646 case SIM_ARM_IWMMXT_COP1R1_REGNUM:
647 case SIM_ARM_IWMMXT_COP1R2_REGNUM:
648 case SIM_ARM_IWMMXT_COP1R3_REGNUM:
649 case SIM_ARM_IWMMXT_COP1R4_REGNUM:
650 case SIM_ARM_IWMMXT_COP1R5_REGNUM:
651 case SIM_ARM_IWMMXT_COP1R6_REGNUM:
652 case SIM_ARM_IWMMXT_COP1R7_REGNUM:
653 case SIM_ARM_IWMMXT_COP1R8_REGNUM:
654 case SIM_ARM_IWMMXT_COP1R9_REGNUM:
655 case SIM_ARM_IWMMXT_COP1R10_REGNUM:
656 case SIM_ARM_IWMMXT_COP1R11_REGNUM:
657 case SIM_ARM_IWMMXT_COP1R12_REGNUM:
658 case SIM_ARM_IWMMXT_COP1R13_REGNUM:
659 case SIM_ARM_IWMMXT_COP1R14_REGNUM:
660 case SIM_ARM_IWMMXT_COP1R15_REGNUM:
661 return Fetch_Iwmmxt_Register (rn - SIM_ARM_IWMMXT_COP0R0_REGNUM, memory);
669 tomem (state, memory, regval);
679 #ifdef SIM_TARGET_SWITCHES
681 static void sim_target_parse_arg_array PARAMS ((char **));
686 unsigned int swi_mask;
689 #define SWI_SWITCH "--swi-support"
691 static swi_options options[] =
694 { "demon", SWI_MASK_DEMON },
695 { "angel", SWI_MASK_ANGEL },
696 { "redboot", SWI_MASK_REDBOOT },
699 { "DEMON", SWI_MASK_DEMON },
700 { "ANGEL", SWI_MASK_ANGEL },
701 { "REDBOOT", SWI_MASK_REDBOOT },
707 sim_target_parse_command_line (argc, argv)
713 for (i = 1; i < argc; i++)
715 char * ptr = argv[i];
718 if ((ptr == NULL) || (* ptr != '-'))
721 if (strncmp (ptr, SWI_SWITCH, sizeof SWI_SWITCH - 1) != 0)
724 if (ptr[sizeof SWI_SWITCH - 1] == 0)
726 /* Remove this option from the argv array. */
727 for (arg = i; arg < argc; arg ++)
728 argv[arg] = argv[arg + 1];
734 ptr += sizeof SWI_SWITCH;
742 for (i = sizeof options / sizeof options[0]; i--;)
743 if (strncmp (ptr, options[i].swi_option,
744 strlen (options[i].swi_option)) == 0)
746 swi_mask |= options[i].swi_mask;
747 ptr += strlen (options[i].swi_option);
760 fprintf (stderr, "Ignoring swi options: %s\n", ptr);
762 /* Remove this option from the argv array. */
763 for (arg = i; arg < argc; arg ++)
764 argv[arg] = argv[arg + 1];
772 sim_target_parse_arg_array (argv)
777 for (i = 0; argv[i]; i++)
780 sim_target_parse_command_line (i, argv);
784 sim_target_display_usage (help)
787 FILE *stream = help ? stdout : stderr;
789 fprintf (stream, "%s=<list> Comma seperated list of SWI protocols to supoport.\n\
790 This list can contain: NONE, DEMON, ANGEL, REDBOOT and/or ALL.\n",
796 sim_open (kind, ptr, abfd, argv)
803 if (myname) free (myname);
804 myname = (char *) xstrdup (argv[0]);
807 #ifdef SIM_TARGET_SWITCHES
808 sim_target_parse_arg_array (argv);
811 /* Decide upon the endian-ness of the processor.
812 If we can, get the information from the bfd itself.
813 Otherwise look to see if we have been given a command
814 line switch that tells us. Otherwise default to little endian. */
816 big_endian = bfd_big_endian (abfd);
817 else if (argv[1] != NULL)
821 /* Scan for endian-ness and memory-size switches. */
822 for (i = 0; (argv[i] != NULL) && (argv[i][0] != 0); i++)
823 if (argv[i][0] == '-' && argv[i][1] == 'E')
827 if ((c = argv[i][2]) == 0)
836 sim_callback->printf_filtered
837 (sim_callback, "No argument to -E option provided\n");
851 sim_callback->printf_filtered
852 (sim_callback, "Unrecognised argument to -E option\n");
856 else if (argv[i][0] == '-' && argv[i][1] == 'm')
858 if (argv[i][2] != '\0')
859 sim_size (atoi (&argv[i][2]));
860 else if (argv[i + 1] != NULL)
862 sim_size (atoi (argv[i + 1]));
867 sim_callback->printf_filtered (sim_callback,
868 "Missing argument to -m option\n");
879 sim_close (sd, quitting)
880 SIM_DESC sd ATTRIBUTE_UNUSED;
881 int quitting ATTRIBUTE_UNUSED;
889 sim_load (sd, prog, abfd, from_tty)
893 int from_tty ATTRIBUTE_UNUSED;
897 prog_bfd = sim_load_file (sd, myname, sim_callback, prog, abfd,
898 sim_kind == SIM_OPEN_DEBUG, 0, sim_write);
899 if (prog_bfd == NULL)
901 ARMul_SetPC (state, bfd_get_start_address (prog_bfd));
903 bfd_close (prog_bfd);
908 sim_stop_reason (sd, reason, sigrc)
909 SIM_DESC sd ATTRIBUTE_UNUSED;
910 enum sim_stop *reason;
915 *reason = sim_stopped;
916 *sigrc = GDB_SIGNAL_INT;
918 else if (state->EndCondition == 0)
920 *reason = sim_exited;
921 *sigrc = state->Reg[0] & 255;
925 *reason = sim_stopped;
926 if (state->EndCondition == RDIError_BreakpointReached)
927 *sigrc = GDB_SIGNAL_TRAP;
928 else if ( state->EndCondition == RDIError_DataAbort
929 || state->EndCondition == RDIError_AddressException)
930 *sigrc = GDB_SIGNAL_BUS;
937 sim_do_command (sd, cmd)
938 SIM_DESC sd ATTRIBUTE_UNUSED;
939 char *cmd ATTRIBUTE_UNUSED;
941 (*sim_callback->printf_filtered)
943 "This simulator does not accept any commands.\n");
947 sim_set_callbacks (ptr)
954 sim_complete_command (SIM_DESC sd, const char *text, const char *word)