| 1 | /* Remote debugging interface for AMD 29k interfaced via UDI, for GDB. |
| 2 | Copyright 1990, 1992 Free Software Foundation, Inc. |
| 3 | Written by Daniel Mann. Contributed by AMD. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | /* This is like remote.c but uses the Universal Debug Interface (UDI) to |
| 22 | talk to the target hardware (or simulator). UDI is a TCP/IP based |
| 23 | protocol; for hardware that doesn't run TCP, an interface adapter |
| 24 | daemon talks UDI on one side, and talks to the hardware (typically |
| 25 | over a serial port) on the other side. |
| 26 | |
| 27 | - Originally written by Daniel Mann at AMD for MiniMON and gdb 3.91.6. |
| 28 | - David Wood (wood@lab.ultra.nyu.edu) at New York University adapted this |
| 29 | file to gdb 3.95. I was unable to get this working on sun3os4 |
| 30 | with termio, only with sgtty. Because we are only attempting to |
| 31 | use this module to debug our kernel, which is already loaded when |
| 32 | gdb is started up, I did not code up the file downloading facilities. |
| 33 | As a result this module has only the stubs to download files. |
| 34 | You should get tagged at compile time if you need to make any |
| 35 | changes/additions. |
| 36 | - Daniel Mann at AMD took the 3.95 adaptions above and replaced |
| 37 | MiniMON interface with UDI-p interface. */ |
| 38 | |
| 39 | #include "defs.h" |
| 40 | #include "inferior.h" |
| 41 | #include "wait.h" |
| 42 | #include "value.h" |
| 43 | #include <ctype.h> |
| 44 | #include <fcntl.h> |
| 45 | #include <signal.h> |
| 46 | #include <errno.h> |
| 47 | #include <string.h> |
| 48 | #include "terminal.h" |
| 49 | #include "target.h" |
| 50 | #include "29k-share/udi/udiproc.h" |
| 51 | |
| 52 | /* access the register store directly, without going through |
| 53 | the normal handler functions. This avoids an extra data copy |
| 54 | */ |
| 55 | |
| 56 | /* #define DEBUG 1 /* */ |
| 57 | #ifdef DEBUG |
| 58 | # define DENTER(NAME) (printf("Entering %s\n",NAME), fflush(stdout)) |
| 59 | # define DEXIT(NAME) (printf("Exiting %s\n",NAME), fflush(stdout)) |
| 60 | #else |
| 61 | # define DENTER(NAME) |
| 62 | # define DEXIT(NAME) |
| 63 | #endif |
| 64 | |
| 65 | |
| 66 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
| 67 | extern struct value *call_function_by_hand(); |
| 68 | static void udi_resume(); |
| 69 | static void udi_fetch_registers (); |
| 70 | static void udi_load(); |
| 71 | static int fetch_register (); |
| 72 | static void udi_store_registers (); |
| 73 | static int store_register (); |
| 74 | static int regnum_to_srnum(); |
| 75 | static void udi_close (); |
| 76 | static CPUSpace udi_memory_space(); |
| 77 | static int udi_write_inferior_memory(); |
| 78 | static int udi_read_inferior_memory(); |
| 79 | char CoffFileName[100] = ""; |
| 80 | /* |
| 81 | * Processor types. |
| 82 | */ |
| 83 | #define TYPE_UNKNOWN 0 |
| 84 | #define TYPE_A29000 1 |
| 85 | #define TYPE_A29030 2 |
| 86 | #define TYPE_A29050 3 |
| 87 | static char *processor_name[] = { "Unknown", "Am29000", "Am29030", "Am29050" }; |
| 88 | static int processor_type=TYPE_UNKNOWN; |
| 89 | #define FREEZE_MODE (read_register(CPS_REGNUM) && 0x400) |
| 90 | #define USE_SHADOW_PC ((processor_type == TYPE_A29050) && FREEZE_MODE) |
| 91 | |
| 92 | #define LLOG_FILE "udi.log" |
| 93 | #if defined (LOG_FILE) |
| 94 | FILE *log_file; |
| 95 | #endif |
| 96 | |
| 97 | static int timeout = 5; |
| 98 | extern struct target_ops udi_ops; /* Forward declaration */ |
| 99 | |
| 100 | /* Special register enumeration. |
| 101 | */ |
| 102 | |
| 103 | /******************************************************************* UDI DATA*/ |
| 104 | #define MAXDATA 2*1024 /* max UDI[read/write] byte size */ |
| 105 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that |
| 106 | udi_open knows that we don't have a file open when the program |
| 107 | starts. */ |
| 108 | UDISessionId udi_session_id = -1; |
| 109 | |
| 110 | CPUOffset IMemStart = 0; |
| 111 | CPUSizeT IMemSize = 0; |
| 112 | CPUOffset DMemStart = 0; |
| 113 | CPUSizeT DMemSize = 0; |
| 114 | CPUOffset RMemStart = 0; |
| 115 | CPUSizeT RMemSize = 0; |
| 116 | UDIUInt32 CPUPRL; |
| 117 | UDIUInt32 CoProcPRL; |
| 118 | |
| 119 | #define SBUF_MAX 1024 /* maximum size of string handling buffer */ |
| 120 | char sbuf[SBUF_MAX]; |
| 121 | |
| 122 | typedef struct bkpt_entry_str |
| 123 | { |
| 124 | UDIResource Addr; |
| 125 | UDIUInt32 PassCount; |
| 126 | UDIBreakType Type; |
| 127 | unsigned int BreakId; |
| 128 | } bkpt_entry_t; |
| 129 | #define BKPT_TABLE_SIZE 40 |
| 130 | static bkpt_entry_t bkpt_table[BKPT_TABLE_SIZE]; |
| 131 | extern char dfe_errmsg[]; /* error string */ |
| 132 | |
| 133 | /*********************************************************** SIGNAL SUPPORT */ |
| 134 | /* Called when SIGALRM signal sent due to alarm() timeout. */ |
| 135 | #ifndef HAVE_TERMIO |
| 136 | |
| 137 | #ifndef __STDC__ |
| 138 | # ifndef volatile |
| 139 | # define volatile /**/ |
| 140 | # endif |
| 141 | #endif |
| 142 | volatile int n_alarms; |
| 143 | |
| 144 | static void |
| 145 | udi_timer () |
| 146 | { |
| 147 | #if 0 |
| 148 | if (kiodebug) |
| 149 | printf ("udi_timer called\n"); |
| 150 | #endif |
| 151 | n_alarms++; |
| 152 | } |
| 153 | #endif /* HAVE_TERMIO */ |
| 154 | |
| 155 | /* malloc'd name of the program on the remote system. */ |
| 156 | static char *prog_name = NULL; |
| 157 | |
| 158 | |
| 159 | /* Number of SIGTRAPs we need to simulate. That is, the next |
| 160 | NEED_ARTIFICIAL_TRAP calls to udi_wait should just return |
| 161 | SIGTRAP without actually waiting for anything. */ |
| 162 | |
| 163 | /******************************************************* UDI_CREATE_INFERIOR */ |
| 164 | /* This is called not only when we first attach, but also when the |
| 165 | user types "run" after having attached. */ |
| 166 | static void |
| 167 | udi_create_inferior (execfile, args, env) |
| 168 | char *execfile; |
| 169 | char *args; |
| 170 | char **env; |
| 171 | { |
| 172 | DENTER("udi_create_inferior()"); |
| 173 | |
| 174 | if (execfile) |
| 175 | { if (prog_name != NULL) |
| 176 | free (prog_name); |
| 177 | prog_name = savestring (execfile, strlen (execfile)); |
| 178 | } |
| 179 | |
| 180 | if (prog_name == 0 /* || exec_bfd == 0 */ ) |
| 181 | error ("No exec file specified"); |
| 182 | |
| 183 | if (udi_session_id < 0){ |
| 184 | printf("UDI connection not open yet.\n"); |
| 185 | return; |
| 186 | } |
| 187 | |
| 188 | inferior_pid = 40000; |
| 189 | |
| 190 | #if defined(ULTRA3) && defined(KERNEL_DEBUGGING) |
| 191 | /* On ultra3 (NYU) we assume the kernel is already running so there is |
| 192 | * no file to download |
| 193 | */ |
| 194 | #else |
| 195 | if(*args == '\0') args = prog_name; |
| 196 | udi_load(args, 0); |
| 197 | #endif /* !ULTRA3 */ |
| 198 | |
| 199 | /* We will get a task spawn event immediately. */ |
| 200 | #ifdef NOTDEF /* start_remote() now does a wait without a resume |
| 201 | so don't use it*/ |
| 202 | start_remote (); |
| 203 | #else |
| 204 | init_wait_for_inferior (); |
| 205 | clear_proceed_status (); |
| 206 | proceed(-1,-1,0); |
| 207 | #endif |
| 208 | DEXIT("udi_create_inferior()"); |
| 209 | } |
| 210 | /******************************************************* UDI_MOURN_INFERIOR */ |
| 211 | static void |
| 212 | udi_mourn() |
| 213 | { |
| 214 | DENTER("udi_mourn()"); |
| 215 | pop_target (); /* Pop back to no-child state */ |
| 216 | generic_mourn_inferior (); |
| 217 | DEXIT("udi_mourn()"); |
| 218 | } |
| 219 | |
| 220 | /******************************************************************** UDI_OPEN |
| 221 | ** Open a connection to remote TIP. |
| 222 | NAME is the socket domain used for communication with the TIP, |
| 223 | then a space and the socket name or TIP-host name. |
| 224 | '<udi_udi_config_id> [progname]' for example. |
| 225 | */ |
| 226 | |
| 227 | /* XXX - need cleanups for udiconnect for various failures!!! */ |
| 228 | |
| 229 | static char *udi_config_id; |
| 230 | static void |
| 231 | udi_open (name, from_tty) |
| 232 | char *name; |
| 233 | int from_tty; |
| 234 | { |
| 235 | unsigned int prl; |
| 236 | char *p; |
| 237 | int cnt; |
| 238 | UDIMemoryRange KnownMemory[10]; |
| 239 | UDIUInt32 ChipVersions[10]; |
| 240 | UDIInt NumberOfRanges = 10; |
| 241 | UDIInt NumberOfChips = 10; |
| 242 | UDIPId PId; |
| 243 | UDIUInt32 TIPId, TargetId, DFEId, DFE, TIP, DFEIPCId, TIPIPCId; |
| 244 | |
| 245 | DENTER("udi_open()"); |
| 246 | |
| 247 | target_preopen(from_tty); |
| 248 | |
| 249 | /* Find the first whitespace character, it separates udi_config_id |
| 250 | from prog_name. */ |
| 251 | if(!name) goto erroid; |
| 252 | for (p = name; |
| 253 | *p != '\0' && !isspace (*p); p++) |
| 254 | ; |
| 255 | if (*p == '\0') |
| 256 | erroid: |
| 257 | error("Usage: target udi config_id progname, where config_id appears in udi_soc file"); |
| 258 | |
| 259 | udi_config_id = (char*)malloc (p - name + 1); |
| 260 | strncpy (udi_config_id, name, p - name); |
| 261 | udi_config_id[p - name] = '\0'; |
| 262 | |
| 263 | /* Skip over the whitespace after udi_config_id */ |
| 264 | for (; isspace (*p); p++) |
| 265 | /*EMPTY*/; |
| 266 | |
| 267 | if (prog_name != NULL) |
| 268 | free (prog_name); |
| 269 | prog_name = savestring (p, strlen (p)); |
| 270 | |
| 271 | if (UDIConnect(udi_config_id, &udi_session_id)) |
| 272 | error("UDIConnect() failed: %s\n", dfe_errmsg); |
| 273 | |
| 274 | push_target (&udi_ops); |
| 275 | |
| 276 | #ifndef HAVE_TERMIO |
| 277 | #ifndef NO_SIGINTERRUPT |
| 278 | /* Cause SIGALRM's to make reads fail with EINTR instead of resuming |
| 279 | the read. */ |
| 280 | if (siginterrupt (SIGALRM, 1) != 0) |
| 281 | error ("udi_open: siginterrupt() %s", safe_strerror(errno)); |
| 282 | #endif |
| 283 | |
| 284 | /* Set up read timeout timer. */ |
| 285 | if ((void (*)) signal (SIGALRM, udi_timer) == (void (*)) -1) |
| 286 | error ("udi_open: signal() %s", safe_strerror(errno)); |
| 287 | #endif |
| 288 | |
| 289 | #if defined (LOG_FILE) |
| 290 | log_file = fopen (LOG_FILE, "w"); |
| 291 | if (log_file == NULL) |
| 292 | error ("udi_open: fopen(%s) %s", LOG_FILE, safe_strerror(errno)); |
| 293 | #endif |
| 294 | /* |
| 295 | ** Initialize target configuration structure (global) |
| 296 | */ |
| 297 | if(UDIGetTargetConfig( KnownMemory, &NumberOfRanges, |
| 298 | ChipVersions, &NumberOfChips)) |
| 299 | error ("UDIGetTargetConfig() failed"); |
| 300 | if(NumberOfChips > 2) |
| 301 | fprintf(stderr,"Taret has more than one processor\n"); |
| 302 | for(cnt=0; cnt<NumberOfRanges; cnt++) |
| 303 | { switch(KnownMemory[cnt].Space) |
| 304 | { |
| 305 | default: fprintf(stderr, "UDIGetTargetConfig() unknown memory space\n"); |
| 306 | break; |
| 307 | case UDI29KCP_S: |
| 308 | break; |
| 309 | case UDI29KIROMSpace: |
| 310 | RMemStart = KnownMemory[cnt].Offset; |
| 311 | RMemSize = KnownMemory[cnt].Size; |
| 312 | break; |
| 313 | case UDI29KIRAMSpace: |
| 314 | IMemStart = KnownMemory[cnt].Offset; |
| 315 | IMemSize = KnownMemory[cnt].Size; |
| 316 | break; |
| 317 | case UDI29KDRAMSpace: |
| 318 | DMemStart = KnownMemory[cnt].Offset; |
| 319 | DMemSize = KnownMemory[cnt].Size; |
| 320 | break; |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | /* Determine the processor revision level */ |
| 325 | prl = (unsigned int)read_register(CFG_REGNUM) >> 24; |
| 326 | if ((prl&0xe0) == 0) |
| 327 | { fprintf_filtered(stderr, |
| 328 | "Remote debugging Am29000 rev %c\n",'A'+(prl&0x1f)); |
| 329 | processor_type = TYPE_A29000; |
| 330 | } else if ((prl&0xe0) == 0x40) /* 29030 = 0x4* */ |
| 331 | { fprintf_filtered(stderr, |
| 332 | "Remote debugging Am2903* rev %c\n",'A'+(prl&0x1f)); |
| 333 | processor_type = TYPE_A29030; |
| 334 | } else if ((prl&0xe0) == 0x20) /* 29050 = 0x2* */ |
| 335 | { fprintf_filtered(stderr, |
| 336 | "Remote debugging Am29050 rev %c\n",'A'+(prl&0x1f)); |
| 337 | processor_type = TYPE_A29050; |
| 338 | } else { |
| 339 | processor_type = TYPE_UNKNOWN; |
| 340 | fprintf_filtered(stderr,"WARNING: processor type unknown.\n"); |
| 341 | } |
| 342 | if(UDICreateProcess(&PId)) |
| 343 | fprintf(stderr, "UDICreateProcess() failed\n"); |
| 344 | |
| 345 | /* Print out some stuff, letting the user now what's going on */ |
| 346 | if(UDICapabilities( &TIPId, &TargetId, DFEId, DFE, &TIP, &DFEIPCId, |
| 347 | &TIPIPCId, sbuf)) |
| 348 | error ("UDICapabilities() failed"); |
| 349 | if (from_tty) { |
| 350 | printf_filtered("Remote debugging an %s connected via UDI socket,\n\ |
| 351 | DFE-IPC version %x.%x.%x TIP-IPC version %x.%x.%x TIP version %x.%x.%x\n %s\n", |
| 352 | processor_name[processor_type], |
| 353 | (DFEIPCId>>8)&0xf, (DFEIPCId>>4)&0xf, DFEIPCId&0xf, |
| 354 | (TIPIPCId>>8)&0xf, (TIPIPCId>>4)&0xf, TIPIPCId&0xf, |
| 355 | (TargetId>>8)&0xf, (TargetId>>4)&0xf, TargetId&0xf, |
| 356 | sbuf); |
| 357 | #ifdef ULTRA3 |
| 358 | /* FIXME: can this restriction be removed? */ |
| 359 | printf_filtered("Remote debugging using virtual addresses works only\n"); |
| 360 | printf_filtered(" when virtual addresses map 1:1 to physical addresses.\n"); |
| 361 | #endif |
| 362 | } |
| 363 | #ifdef ULTRA3 |
| 364 | if (processor_type != TYPE_A29050) { |
| 365 | fprintf_filtered(stderr, |
| 366 | "Freeze-mode debugging can only be done on an Am29050,\n"); |
| 367 | fprintf_filtered(stderr, |
| 368 | " unless GDB is being used with a 29K simulator.\n"); |
| 369 | } |
| 370 | #endif |
| 371 | } |
| 372 | |
| 373 | /******************************************************************* UDI_CLOSE |
| 374 | Close the open connection to the TIP process. |
| 375 | Use this when you want to detach and do something else |
| 376 | with your gdb. */ |
| 377 | static void |
| 378 | udi_close (quitting) /*FIXME: how is quitting used */ |
| 379 | int quitting; |
| 380 | { |
| 381 | int Terminate = -1; |
| 382 | DENTER("udi_close()"); |
| 383 | |
| 384 | if (udi_session_id < 0) |
| 385 | error ("Can't close udi connection: not debugging remotely."); |
| 386 | |
| 387 | /* We should never get here if there isn't something valid in |
| 388 | udi_session_id. |
| 389 | |
| 390 | if(UDIDisconnect(udi_stream, Terminate);) |
| 391 | error ("UDIDisconnect() failed in udi_close"); |
| 392 | |
| 393 | /* Do not try to close udi_session_id again, later in the program. */ |
| 394 | udi_session_id = -1; |
| 395 | inferior_pid = 0; |
| 396 | |
| 397 | #if defined (LOG_FILE) |
| 398 | if (ferror (log_file)) |
| 399 | printf ("Error writing log file.\n"); |
| 400 | if (fclose (log_file) != 0) |
| 401 | printf ("Error closing log file.\n"); |
| 402 | #endif |
| 403 | |
| 404 | printf_filtered (" Ending remote debugging\n"); |
| 405 | |
| 406 | DEXIT("udi_close()"); |
| 407 | } |
| 408 | |
| 409 | /**************************************************************** UDI_ATACH */ |
| 410 | /* Attach to a program that is already loaded and running |
| 411 | * Upon exiting the process's execution is stopped. |
| 412 | */ |
| 413 | static void |
| 414 | udi_attach (args, from_tty) |
| 415 | char *args; |
| 416 | int from_tty; |
| 417 | { |
| 418 | UDIResource From; |
| 419 | UDIInt32 PC_adds; |
| 420 | UDICount Count = 1; |
| 421 | UDISizeT Size = 4; |
| 422 | UDICount CountDone; |
| 423 | UDIBool HostEndian = 0; |
| 424 | DENTER("udi_attach()"); |
| 425 | |
| 426 | if (udi_session_id < 0) |
| 427 | error ("UDI connection not opened yet, use the 'target udi' command.\n"); |
| 428 | |
| 429 | if (from_tty) |
| 430 | printf ("Attaching to remote program %s...\n", prog_name); |
| 431 | |
| 432 | mark_breakpoints_out (); |
| 433 | UDIStop(); |
| 434 | From.Space = 11; |
| 435 | From.Offset = UDI29KSpecialRegs; |
| 436 | if(UDIRead(From, &PC_adds, Count, Size, &CountDone, HostEndian)) |
| 437 | error ("UDIRead failed in udi_attach"); |
| 438 | printf ("Remote process is now halted, pc1 = 0x%x.\n", PC_adds); |
| 439 | |
| 440 | DEXIT("udi_attach()"); |
| 441 | } |
| 442 | /************************************************************* UDI_DETACH */ |
| 443 | /* Terminate the open connection to the TIP process. |
| 444 | Use this when you want to detach and do something else |
| 445 | with your gdb. Leave remote process running (with no breakpoints set). */ |
| 446 | static void |
| 447 | udi_detach (args,from_tty) |
| 448 | char *args; |
| 449 | int from_tty; |
| 450 | { |
| 451 | DENTER("udi_dettach()"); |
| 452 | remove_breakpoints(); /* Just in case there were any left in */ |
| 453 | if(UDIDisconnect(udi_session_id)) |
| 454 | error ("UDIDisconnect() failed in udi_detach"); |
| 455 | pop_target(); /* calls udi_close to do the real work */ |
| 456 | if (from_tty) |
| 457 | printf ("Ending remote debugging\n"); |
| 458 | DEXIT("udi_dettach()"); |
| 459 | } |
| 460 | |
| 461 | |
| 462 | /****************************************************************** UDI_RESUME |
| 463 | ** Tell the remote machine to resume. */ |
| 464 | |
| 465 | static void |
| 466 | udi_resume (step, sig) |
| 467 | int step, sig; |
| 468 | { |
| 469 | UDIError tip_error; |
| 470 | UDIUInt32 Steps = 1; |
| 471 | UDIStepType StepType = UDIStepNatural; |
| 472 | UDIRange Range; |
| 473 | DENTER("udi_resume()"); |
| 474 | if (step) /* step 1 instruction */ |
| 475 | { tip_error = tip_error = UDIStep(Steps, StepType, Range); |
| 476 | if(tip_error)fprintf(stderr, "UDIStep() error = %d\n", tip_error); |
| 477 | if(tip_error)error ("failed in udi_resume"); |
| 478 | |
| 479 | } |
| 480 | else |
| 481 | { if(UDIExecute()) |
| 482 | error ("UDIExecute() failed in udi_resume"); |
| 483 | } |
| 484 | |
| 485 | DEXIT("udi_resume()"); |
| 486 | } |
| 487 | |
| 488 | /******************************************************************** UDI_WAIT |
| 489 | ** Wait until the remote machine stops, then return, |
| 490 | storing status in STATUS just as `wait' would. */ |
| 491 | |
| 492 | static int |
| 493 | udi_wait (status) |
| 494 | WAITTYPE *status; |
| 495 | { |
| 496 | UDIInt32 MaxTime; |
| 497 | UDIPId PId; |
| 498 | UDIInt32 StopReason; |
| 499 | UDISizeT CountDone; |
| 500 | int old_timeout = timeout; |
| 501 | int old_immediate_quit = immediate_quit; |
| 502 | int i; |
| 503 | |
| 504 | DENTER("udi_wait()"); |
| 505 | WSETEXIT ((*status), 0); |
| 506 | |
| 507 | /* wait for message to arrive. It should be: |
| 508 | If the target stops executing, udi_wait() should return. |
| 509 | */ |
| 510 | timeout = 0; /* Wait indefinetly for a message */ |
| 511 | immediate_quit = 1; /* Helps ability to QUIT */ |
| 512 | while(1) |
| 513 | { |
| 514 | i = 0; |
| 515 | MaxTime = UDIWaitForever; |
| 516 | UDIWait(MaxTime, &PId, &StopReason); |
| 517 | QUIT; /* Let user quit if they want */ |
| 518 | switch (StopReason & 0xff) |
| 519 | { |
| 520 | default: |
| 521 | goto halted; |
| 522 | case UDIStdoutReady: |
| 523 | if(UDIGetStdout(sbuf, (UDISizeT)SBUF_MAX, &CountDone)) |
| 524 | error("UDIGetStdin() failed in udi_wait"); |
| 525 | while(CountDone--)putc(sbuf[i++], stdout); |
| 526 | fflush(stdout); |
| 527 | break; |
| 528 | case UDIStderrReady: |
| 529 | UDIGetStderr(sbuf, (UDISizeT)SBUF_MAX, &CountDone); |
| 530 | while(CountDone--)putc(sbuf[i++], stderr); |
| 531 | fflush(stderr); |
| 532 | fflush(stderr); |
| 533 | break; |
| 534 | case UDIStdinNeeded: |
| 535 | printf("DEBUG: stdin requested ... continue\n"); |
| 536 | /* UDIPutStdin(sbuf, (UDISizeT)i, &CountDone); */ |
| 537 | break; |
| 538 | case UDIStdinModeX: |
| 539 | break; |
| 540 | } |
| 541 | continue; |
| 542 | } |
| 543 | halted: |
| 544 | if (StopReason & 0xff == UDITrapped ) /* lower 8-bits == 0 */ |
| 545 | { |
| 546 | if (StopReason >> 24 == 0) |
| 547 | { printf("Am290*0 received vector number 0 (break point)\n"); |
| 548 | WSETSTOP ((*status), SIGTRAP); |
| 549 | } |
| 550 | else if (StopReason >> 24 == 1) |
| 551 | { printf("Am290*0 received vector 1\n"); |
| 552 | WSETSTOP ((*status), SIGBUS); |
| 553 | } |
| 554 | else if (StopReason >> 24 == 3 |
| 555 | || StopReason >> 24 == 4) |
| 556 | { printf("Am290*0 received vector number %d\n", |
| 557 | StopReason >> 24); |
| 558 | WSETSTOP ((*status), SIGFPE); |
| 559 | } |
| 560 | else if (StopReason >> 24 == 5) |
| 561 | { printf("Am290*0 received vector number %d\n", |
| 562 | StopReason >> 24); |
| 563 | WSETSTOP ((*status), SIGILL); |
| 564 | } |
| 565 | else if (StopReason >> 24 >= 6 |
| 566 | && StopReason >> 24 <= 11) |
| 567 | { printf("Am290*0 received vector number %d\n", |
| 568 | StopReason >> 24); |
| 569 | WSETSTOP ((*status), SIGSEGV); |
| 570 | } |
| 571 | else if (StopReason >> 24 == 12 |
| 572 | || StopReason >> 24 == 13) |
| 573 | { printf("Am290*0 received vector number %d\n", |
| 574 | StopReason >> 24); |
| 575 | WSETSTOP ((*status), SIGILL); |
| 576 | } |
| 577 | else if ((StopReason & 0xff) == 14) |
| 578 | { printf("Am290*0 received vector number %d\n", |
| 579 | StopReason >> 24); |
| 580 | WSETSTOP ((*status), SIGALRM); |
| 581 | } |
| 582 | else if ((StopReason & 0xff) == 15) |
| 583 | WSETSTOP ((*status), SIGTRAP); |
| 584 | else if ((StopReason >> 24) >= 16 |
| 585 | && (StopReason >> 24) <= 21) |
| 586 | { printf("Am290*0 received vector number %d\n", |
| 587 | StopReason >> 24); |
| 588 | WSETSTOP ((*status), SIGINT); |
| 589 | } |
| 590 | else if ((StopReason & 0xff) == 22) |
| 591 | { printf("Am290*0 received vector number %d\n", |
| 592 | StopReason >> 24); |
| 593 | WSETSTOP ((*status), SIGILL); |
| 594 | } |
| 595 | else if ((StopReason & 0xff) == 77) |
| 596 | WSETSTOP ((*status), SIGTRAP); |
| 597 | else |
| 598 | exit: |
| 599 | WSETEXIT ((*status), 0); |
| 600 | } |
| 601 | else if ((StopReason & 0xff) == UDIBreak) |
| 602 | WSETSTOP ((*status), SIGTRAP); |
| 603 | else if ((StopReason & 0xff) == UDINotExecuting) |
| 604 | WSETSTOP ((*status), SIGTERM); |
| 605 | else if ((StopReason & 0xff) == UDIRunning) |
| 606 | WSETSTOP ((*status), SIGILL); |
| 607 | else if ((StopReason & 0xff) == UDIStopped) |
| 608 | WSETSTOP ((*status), SIGTSTP); |
| 609 | else if ((StopReason & 0xff) == UDIWarned) |
| 610 | WSETSTOP ((*status), SIGLOST); |
| 611 | else if ((StopReason & 0xff) == UDIStepped) |
| 612 | WSETSTOP ((*status), SIGTRAP); |
| 613 | else if ((StopReason & 0xff) == UDIWaiting) |
| 614 | WSETSTOP ((*status), SIGSTOP); |
| 615 | else if ((StopReason & 0xff) == UDIHalted) |
| 616 | WSETSTOP ((*status), SIGKILL); |
| 617 | else |
| 618 | WSETEXIT ((*status), 0); |
| 619 | |
| 620 | timeout = old_timeout; /* Restore original timeout value */ |
| 621 | immediate_quit = old_immediate_quit; |
| 622 | DEXIT("udi_wait()"); |
| 623 | return 0; |
| 624 | } |
| 625 | |
| 626 | /********************************************************** UDI_FETCH_REGISTERS |
| 627 | * Read a remote register 'regno'. |
| 628 | * If regno==-1 then read all the registers. |
| 629 | */ |
| 630 | static void |
| 631 | udi_fetch_registers (regno) |
| 632 | int regno; |
| 633 | { |
| 634 | UDIResource From; |
| 635 | UDIUInt32 *To; |
| 636 | UDICount Count; |
| 637 | UDISizeT Size = 4; |
| 638 | UDICount CountDone; |
| 639 | UDIBool HostEndian = 0; |
| 640 | int i; |
| 641 | |
| 642 | if (regno >= 0) { |
| 643 | fetch_register(regno); |
| 644 | return; |
| 645 | } |
| 646 | |
| 647 | /* Gr1/rsp */ |
| 648 | |
| 649 | From.Space = UDI29KGlobalRegs; |
| 650 | From.Offset = 1; |
| 651 | To = (UDIUInt32 *)®isters[4 * GR1_REGNUM]; |
| 652 | Count = 1; |
| 653 | if (UDIRead(From, To, Count, Size, &CountDone, HostEndian)) |
| 654 | error("UDIRead() failed in udi_fetch_registers"); |
| 655 | |
| 656 | register_valid[GR1_REGNUM] = 1; |
| 657 | |
| 658 | #if defined(GR64_REGNUM) /* Read gr64-127 */ |
| 659 | |
| 660 | /* Global Registers gr64-gr95 */ |
| 661 | |
| 662 | From.Space = UDI29KGlobalRegs; |
| 663 | From.Offset = 64; |
| 664 | To = (UDIUInt32 *)®isters[4 * GR64_REGNUM]; |
| 665 | Count = 32; |
| 666 | if (UDIRead(From, To, Count, Size, &CountDone, HostEndian)) |
| 667 | error("UDIRead() failed in udi_fetch_registers"); |
| 668 | |
| 669 | for (i = GR64_REGNUM; i < GR64_REGNUM + 32; i++) |
| 670 | register_valid[i] = 1; |
| 671 | |
| 672 | #endif /* GR64_REGNUM */ |
| 673 | |
| 674 | /* Global Registers gr96-gr127 */ |
| 675 | |
| 676 | From.Space = UDI29KGlobalRegs; |
| 677 | From.Offset = 96; |
| 678 | To = (UDIUInt32 *)®isters[4 * GR96_REGNUM]; |
| 679 | Count = 32; |
| 680 | if (UDIRead(From, To, Count, Size, &CountDone, HostEndian)) |
| 681 | error("UDIRead() failed in udi_fetch_registers"); |
| 682 | |
| 683 | for (i = GR96_REGNUM; i < GR96_REGNUM + 32; i++) |
| 684 | register_valid[i] = 1; |
| 685 | |
| 686 | /* Local Registers */ |
| 687 | |
| 688 | From.Space = UDI29KLocalRegs; |
| 689 | From.Offset = 0; |
| 690 | To = (UDIUInt32 *)®isters[4 * LR0_REGNUM]; |
| 691 | Count = 128; |
| 692 | if (UDIRead(From, To, Count, Size, &CountDone, HostEndian)) |
| 693 | error("UDIRead() failed in udi_fetch_registers"); |
| 694 | |
| 695 | for (i = LR0_REGNUM; i < LR0_REGNUM + 128; i++) |
| 696 | register_valid[i] = 1; |
| 697 | |
| 698 | /* Protected Special Registers */ |
| 699 | |
| 700 | From.Space = UDI29KSpecialRegs; |
| 701 | From.Offset = 0; |
| 702 | To = (UDIUInt32 *)®isters[4 * SR_REGNUM(0)]; |
| 703 | Count = 15; |
| 704 | if (UDIRead(From, To, Count, Size, &CountDone, HostEndian)) |
| 705 | error("UDIRead() failed in udi_fetch_registers"); |
| 706 | |
| 707 | for (i = SR_REGNUM(0); i < SR_REGNUM(0) + 15; i++) |
| 708 | register_valid[i] = 1; |
| 709 | |
| 710 | if (USE_SHADOW_PC) { /* Let regno_to_srnum() handle the register number */ |
| 711 | fetch_register(NPC_REGNUM); |
| 712 | fetch_register(PC_REGNUM); |
| 713 | fetch_register(PC2_REGNUM); |
| 714 | |
| 715 | /* Unprotected Special Registers sr128-sr135 */ |
| 716 | |
| 717 | From.Space = UDI29KSpecialRegs; |
| 718 | From.Offset = 128; |
| 719 | To = (UDIUInt32 *)®isters[4 * SR_REGNUM(128)]; |
| 720 | Count = 135-128 + 1; |
| 721 | if (UDIRead(From, To, Count, Size, &CountDone, HostEndian)) |
| 722 | error("UDIRead() failed in udi_fetch_registers"); |
| 723 | |
| 724 | for (i = SR_REGNUM(128); i < SR_REGNUM(128) + 135-128+1; i++) |
| 725 | register_valid[i] = 1; |
| 726 | } |
| 727 | |
| 728 | /* There doesn't seem to be any way to get these. */ |
| 729 | { |
| 730 | int val = -1; |
| 731 | supply_register (FPE_REGNUM, (char *) &val); |
| 732 | supply_register (INTE_REGNUM, (char *) &val); |
| 733 | supply_register (FPS_REGNUM, (char *) &val); |
| 734 | supply_register (EXO_REGNUM, (char *) &val); |
| 735 | } |
| 736 | } |
| 737 | |
| 738 | |
| 739 | /********************************************************* UDI_STORE_REGISTERS |
| 740 | ** Store register regno into the target. |
| 741 | * If regno==-1 then store all the registers. |
| 742 | */ |
| 743 | |
| 744 | static void |
| 745 | udi_store_registers (regno) |
| 746 | int regno; |
| 747 | { |
| 748 | UDIUInt32 *From; |
| 749 | UDIResource To; |
| 750 | UDICount Count; |
| 751 | UDISizeT Size = 4; |
| 752 | UDICount CountDone; |
| 753 | UDIBool HostEndian = 0; |
| 754 | |
| 755 | if (regno >= 0) |
| 756 | { |
| 757 | store_register(regno); |
| 758 | return; |
| 759 | } |
| 760 | |
| 761 | /* Gr1/rsp */ |
| 762 | |
| 763 | From = (UDIUInt32 *)®isters[4 * GR1_REGNUM]; |
| 764 | To.Space = UDI29KGlobalRegs; |
| 765 | To.Offset = 1; |
| 766 | Count = 1; |
| 767 | if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian)) |
| 768 | error("UDIWrite() failed in udi_store_regisetrs"); |
| 769 | |
| 770 | #if defined(GR64_REGNUM) |
| 771 | |
| 772 | /* Global registers gr64-gr95 */ |
| 773 | |
| 774 | From = (UDIUInt32 *)®isters[4 * GR64_REGNUM]; |
| 775 | To.Space = UDI29KGlobalRegs; |
| 776 | To.Offset = 64; |
| 777 | Count = 32; |
| 778 | if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian)) |
| 779 | error("UDIWrite() failed in udi_store_regisetrs"); |
| 780 | |
| 781 | #endif /* GR64_REGNUM */ |
| 782 | |
| 783 | /* Global registers gr96-gr127 */ |
| 784 | |
| 785 | From = (UDIUInt32 *)®isters[4 * GR96_REGNUM]; |
| 786 | To.Space = UDI29KGlobalRegs; |
| 787 | To.Offset = 96; |
| 788 | Count = 32; |
| 789 | if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian)) |
| 790 | error("UDIWrite() failed in udi_store_regisetrs"); |
| 791 | |
| 792 | /* Local Registers */ |
| 793 | |
| 794 | From = (UDIUInt32 *)®isters[4 * LR0_REGNUM]; |
| 795 | To.Space = UDI29KLocalRegs; |
| 796 | To.Offset = 0; |
| 797 | Count = 128; |
| 798 | if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian)) |
| 799 | error("UDIWrite() failed in udi_store_regisetrs"); |
| 800 | |
| 801 | |
| 802 | /* Protected Special Registers */ /* VAB through TMR */ |
| 803 | |
| 804 | From = (UDIUInt32 *)®isters[4 * SR_REGNUM(0)]; |
| 805 | To.Space = UDI29KSpecialRegs; |
| 806 | To.Offset = 0; |
| 807 | Count = 10; |
| 808 | if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian)) |
| 809 | error("UDIWrite() failed in udi_store_regisetrs"); |
| 810 | |
| 811 | /* PC0, PC1, PC2 possibly as shadow registers */ |
| 812 | |
| 813 | From = (UDIUInt32 *)®isters[4 * SR_REGNUM(10)]; |
| 814 | To.Space = UDI29KSpecialRegs; |
| 815 | Count = 3; |
| 816 | if (USE_SHADOW_PC) |
| 817 | To.Offset = 20; /* SPC0 */ |
| 818 | else |
| 819 | To.Offset = 10; /* PC0 */ |
| 820 | if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian)) |
| 821 | error("UDIWrite() failed in udi_store_regisetrs"); |
| 822 | |
| 823 | /* LRU and MMU */ |
| 824 | |
| 825 | From = (UDIUInt32 *)®isters[4 * SR_REGNUM(13)]; |
| 826 | To.Space = UDI29KSpecialRegs; |
| 827 | To.Offset = 13; |
| 828 | Count = 2; |
| 829 | if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian)) |
| 830 | error("UDIWrite() failed in udi_store_regisetrs"); |
| 831 | |
| 832 | /* Unprotected Special Registers */ |
| 833 | |
| 834 | From = (UDIUInt32 *)®isters[4 * SR_REGNUM(128)]; |
| 835 | To.Space = UDI29KSpecialRegs; |
| 836 | To.Offset = 128; |
| 837 | Count = 135-128 +1; |
| 838 | if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian)) |
| 839 | error("UDIWrite() failed in udi_store_regisetrs"); |
| 840 | |
| 841 | registers_changed (); |
| 842 | } |
| 843 | |
| 844 | /****************************************************** UDI_PREPARE_TO_STORE */ |
| 845 | /* Get ready to modify the registers array. On machines which store |
| 846 | individual registers, this doesn't need to do anything. On machines |
| 847 | which store all the registers in one fell swoop, this makes sure |
| 848 | that registers contains all the registers from the program being |
| 849 | debugged. */ |
| 850 | |
| 851 | static void |
| 852 | udi_prepare_to_store () |
| 853 | { |
| 854 | /* Do nothing, since we can store individual regs */ |
| 855 | } |
| 856 | |
| 857 | /********************************************************** TRANSLATE_ADDR */ |
| 858 | static CORE_ADDR |
| 859 | translate_addr(addr) |
| 860 | CORE_ADDR addr; |
| 861 | { |
| 862 | #if defined(ULTRA3) && defined(KERNEL_DEBUGGING) |
| 863 | /* Check for a virtual address in the kernel */ |
| 864 | /* Assume physical address of ublock is in paddr_u register */ |
| 865 | /* FIXME: doesn't work for user virtual addresses */ |
| 866 | if (addr >= UVADDR) { |
| 867 | /* PADDR_U register holds the physical address of the ublock */ |
| 868 | CORE_ADDR i = (CORE_ADDR)read_register(PADDR_U_REGNUM); |
| 869 | return(i + addr - (CORE_ADDR)UVADDR); |
| 870 | } else { |
| 871 | return(addr); |
| 872 | } |
| 873 | #else |
| 874 | return(addr); |
| 875 | #endif |
| 876 | } |
| 877 | /************************************************* UDI_XFER_INFERIOR_MEMORY */ |
| 878 | /* FIXME! Merge these two. */ |
| 879 | static int |
| 880 | udi_xfer_inferior_memory (memaddr, myaddr, len, write) |
| 881 | CORE_ADDR memaddr; |
| 882 | char *myaddr; |
| 883 | int len; |
| 884 | int write; |
| 885 | { |
| 886 | |
| 887 | memaddr = translate_addr(memaddr); |
| 888 | |
| 889 | if (write) |
| 890 | return udi_write_inferior_memory (memaddr, myaddr, len); |
| 891 | else |
| 892 | return udi_read_inferior_memory (memaddr, myaddr, len); |
| 893 | } |
| 894 | |
| 895 | /********************************************************** UDI_FILES_INFO */ |
| 896 | static void |
| 897 | udi_files_info () |
| 898 | { |
| 899 | printf ("\tAttached to UDI socket to %s and running program %s.\n", |
| 900 | udi_config_id, prog_name); |
| 901 | } |
| 902 | |
| 903 | /**************************************************** UDI_INSERT_BREAKPOINT */ |
| 904 | static int |
| 905 | udi_insert_breakpoint (addr, contents_cache) |
| 906 | CORE_ADDR addr; |
| 907 | char *contents_cache; |
| 908 | { |
| 909 | int cnt; |
| 910 | UDIError err; |
| 911 | |
| 912 | for (cnt = 0; cnt < BKPT_TABLE_SIZE; cnt++) |
| 913 | if (bkpt_table[cnt].Type == 0) /* Find first free slot */ |
| 914 | break; |
| 915 | |
| 916 | if(cnt >= BKPT_TABLE_SIZE) |
| 917 | error("Too many breakpoints set"); |
| 918 | |
| 919 | bkpt_table[cnt].Addr.Offset = addr; |
| 920 | bkpt_table[cnt].Addr.Space = UDI29KIRAMSpace; |
| 921 | bkpt_table[cnt].PassCount = 1; |
| 922 | bkpt_table[cnt].Type = UDIBreakFlagExecute; |
| 923 | |
| 924 | err = UDISetBreakpoint(bkpt_table[cnt].Addr, |
| 925 | bkpt_table[cnt].PassCount, |
| 926 | bkpt_table[cnt].Type, |
| 927 | &bkpt_table[cnt].BreakId); |
| 928 | |
| 929 | if (err == 0) return 0; /* Success */ |
| 930 | |
| 931 | bkpt_table[cnt].Type = 0; |
| 932 | error("UDISetBreakpoint returned error code %d\n", err); |
| 933 | } |
| 934 | |
| 935 | /**************************************************** UDI_REMOVE_BREAKPOINT */ |
| 936 | static int |
| 937 | udi_remove_breakpoint (addr, contents_cache) |
| 938 | CORE_ADDR addr; |
| 939 | char *contents_cache; |
| 940 | { |
| 941 | int cnt; |
| 942 | UDIError err; |
| 943 | |
| 944 | for (cnt = 0; cnt < BKPT_TABLE_SIZE; cnt++) |
| 945 | if (bkpt_table[cnt].Addr.Offset == addr) /* Find matching breakpoint */ |
| 946 | break; |
| 947 | |
| 948 | if(cnt >= BKPT_TABLE_SIZE) |
| 949 | error("Can't find breakpoint in table"); |
| 950 | |
| 951 | bkpt_table[cnt].Type = 0; |
| 952 | |
| 953 | err = UDIClearBreakpoint(bkpt_table[cnt].BreakId); |
| 954 | if (err == 0) return 0; /* Success */ |
| 955 | |
| 956 | error("UDIClearBreakpoint returned error code %d\n", err); |
| 957 | } |
| 958 | |
| 959 | /***************************************************************** UDI_KILL */ |
| 960 | static void |
| 961 | udi_kill(arg,from_tty) |
| 962 | char *arg; |
| 963 | int from_tty; |
| 964 | { |
| 965 | char buf[4]; |
| 966 | |
| 967 | DENTER("udi_kill()"); |
| 968 | #if defined(ULTRA3) && defined(KERNEL_DEBUGGING) |
| 969 | /* We don't ever kill the kernel */ |
| 970 | if (from_tty) { |
| 971 | printf_filtered("Kernel not killed, but left in current state.\n"); |
| 972 | printf_filtered("Use detach to leave kernel running.\n"); |
| 973 | } |
| 974 | #else |
| 975 | UDIStop(); |
| 976 | inferior_pid = 0; |
| 977 | if (from_tty) { |
| 978 | printf("Target has been stopped."); |
| 979 | } |
| 980 | pop_target(); |
| 981 | #endif |
| 982 | DEXIT("udi_kill()"); |
| 983 | } |
| 984 | |
| 985 | |
| 986 | |
| 987 | /***************************************************************** UDI_LOAD */ |
| 988 | /* |
| 989 | * Load a program into the target. |
| 990 | */ |
| 991 | static void |
| 992 | udi_load(arg_string,from_tty) |
| 993 | char *arg_string; |
| 994 | int from_tty; |
| 995 | { |
| 996 | #define MAX_TOKENS 25 |
| 997 | #define BUFFER_SIZE 256 |
| 998 | int token_count; |
| 999 | char *token[MAX_TOKENS]; |
| 1000 | char cmd_line[BUFFER_SIZE]; |
| 1001 | |
| 1002 | dont_repeat (); |
| 1003 | |
| 1004 | #if defined(KERNEL_DEBUGGING) && defined(ULTRA3) |
| 1005 | printf("The kernel had better be loaded already! Loading not done.\n"); |
| 1006 | #else |
| 1007 | if (arg_string == 0) |
| 1008 | error ("The load command takes a file name"); |
| 1009 | arg_string = tilde_expand (arg_string); |
| 1010 | sprintf(cmd_line,"y %s %s", prog_name, arg_string); |
| 1011 | |
| 1012 | token_count = 0; |
| 1013 | token[0] = cmd_line; |
| 1014 | |
| 1015 | if (cmd_line[0] != '\0') |
| 1016 | { token[token_count] = strtok(cmd_line, " \t,;\n\r"); |
| 1017 | |
| 1018 | if (token[token_count] != NULL) |
| 1019 | { do { |
| 1020 | token_count = token_count + 1; |
| 1021 | token[token_count] = strtok((char *) NULL, " \t,;\n\r"); |
| 1022 | } while ((token[token_count] != NULL) && |
| 1023 | (token_count < MAX_TOKENS)); |
| 1024 | } |
| 1025 | else |
| 1026 | *token[0] = '\0'; |
| 1027 | } |
| 1028 | make_cleanup (free, arg_string); |
| 1029 | QUIT; |
| 1030 | immediate_quit++; |
| 1031 | if(yank_cmd(token, token_count)) |
| 1032 | error("Failure when tring to load program"); |
| 1033 | immediate_quit--; |
| 1034 | symbol_file_add (arg_string, from_tty, 0, 0, 0, 0);/*DEBUG need to add text_addr */ |
| 1035 | #endif |
| 1036 | |
| 1037 | } |
| 1038 | |
| 1039 | /*************************************************** UDI_WRITE_INFERIOR_MEMORY |
| 1040 | ** Copy LEN bytes of data from debugger memory at MYADDR |
| 1041 | to inferior's memory at MEMADDR. Returns number of bytes written. */ |
| 1042 | static int |
| 1043 | udi_write_inferior_memory (memaddr, myaddr, len) |
| 1044 | CORE_ADDR memaddr; |
| 1045 | char *myaddr; |
| 1046 | int len; |
| 1047 | { |
| 1048 | int nwritten = 0; |
| 1049 | UDIUInt32 *From; |
| 1050 | UDIResource To; |
| 1051 | UDICount Count; |
| 1052 | UDISizeT Size = 1; |
| 1053 | UDICount CountDone = 0; |
| 1054 | UDIBool HostEndian = 0; |
| 1055 | |
| 1056 | |
| 1057 | /* DENTER("udi_write_inferior_memory()"); */ |
| 1058 | To.Space = udi_memory_space(memaddr); |
| 1059 | From = (UDIUInt32*)myaddr; |
| 1060 | |
| 1061 | while (nwritten < len) |
| 1062 | { Count = len - nwritten; |
| 1063 | if (Count > MAXDATA) Count = MAXDATA; |
| 1064 | To.Offset = memaddr + nwritten; |
| 1065 | if(UDIWrite(From, To, Count, Size, &CountDone, HostEndian)) |
| 1066 | { error("UDIWrite() failed in udi_write_inferrior_memory"); |
| 1067 | break; |
| 1068 | } |
| 1069 | else |
| 1070 | { nwritten += CountDone; |
| 1071 | From += CountDone; |
| 1072 | } |
| 1073 | } |
| 1074 | /* DEXIT("udi_write_inferior_memory()"); */ |
| 1075 | return(nwritten); |
| 1076 | } |
| 1077 | |
| 1078 | /**************************************************** UDI_READ_INFERIOR_MEMORY |
| 1079 | ** Read LEN bytes from inferior memory at MEMADDR. Put the result |
| 1080 | at debugger address MYADDR. Returns number of bytes read. */ |
| 1081 | static int |
| 1082 | udi_read_inferior_memory(memaddr, myaddr, len) |
| 1083 | CORE_ADDR memaddr; |
| 1084 | char *myaddr; |
| 1085 | int len; |
| 1086 | { |
| 1087 | int nread = 0; |
| 1088 | UDIResource From; |
| 1089 | UDIUInt32 *To; |
| 1090 | UDICount Count; |
| 1091 | UDISizeT Size = 1; |
| 1092 | UDICount CountDone = 0; |
| 1093 | UDIBool HostEndian = 0; |
| 1094 | |
| 1095 | |
| 1096 | /* DENTER("udi_read_inferior_memory()"); */ |
| 1097 | From.Space = udi_memory_space(memaddr); |
| 1098 | To = (UDIUInt32*)myaddr; |
| 1099 | |
| 1100 | while (nread < len) |
| 1101 | { Count = len - nread; |
| 1102 | if (Count > MAXDATA) Count = MAXDATA; |
| 1103 | From.Offset = memaddr + nread; |
| 1104 | if(UDIRead(From, To, Count, Size, &CountDone, HostEndian)) |
| 1105 | { error("UDIWrite() failed in udi_read_inferrior_memory"); |
| 1106 | break; |
| 1107 | } |
| 1108 | else |
| 1109 | { nread += CountDone; |
| 1110 | To += CountDone; |
| 1111 | } |
| 1112 | } |
| 1113 | return(nread); |
| 1114 | } |
| 1115 | |
| 1116 | /********************************************************************* WARNING |
| 1117 | */ |
| 1118 | udi_warning(num) |
| 1119 | int num; |
| 1120 | { |
| 1121 | error ("ERROR while loading program into remote TIP: $d\n", num); |
| 1122 | } |
| 1123 | |
| 1124 | |
| 1125 | /*****************************************************************************/ |
| 1126 | /* Fetch a single register indicatated by 'regno'. |
| 1127 | * Returns 0/-1 on success/failure. |
| 1128 | */ |
| 1129 | static int |
| 1130 | fetch_register (regno) |
| 1131 | int regno; |
| 1132 | { |
| 1133 | UDIResource From; |
| 1134 | UDIUInt32 To; |
| 1135 | UDICount Count = 1; |
| 1136 | UDISizeT Size = 4; |
| 1137 | UDICount CountDone; |
| 1138 | UDIBool HostEndian = 0; |
| 1139 | int result; |
| 1140 | |
| 1141 | if (regno == GR1_REGNUM) |
| 1142 | { |
| 1143 | From.Space = UDI29KGlobalRegs; |
| 1144 | From.Offset = 1; |
| 1145 | } |
| 1146 | else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
| 1147 | { |
| 1148 | From.Space = UDI29KGlobalRegs; |
| 1149 | From.Offset = (regno - GR96_REGNUM) + 96;; |
| 1150 | } |
| 1151 | |
| 1152 | #if defined(GR64_REGNUM) |
| 1153 | |
| 1154 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 ) |
| 1155 | { |
| 1156 | From.Space = UDI29KGlobalRegs; |
| 1157 | From.Offset = (regno - GR64_REGNUM) + 64; |
| 1158 | } |
| 1159 | |
| 1160 | #endif /* GR64_REGNUM */ |
| 1161 | |
| 1162 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) |
| 1163 | { |
| 1164 | From.Space = UDI29KLocalRegs; |
| 1165 | From.Offset = (regno - LR0_REGNUM); |
| 1166 | } |
| 1167 | else if (regno>=FPE_REGNUM && regno<=EXO_REGNUM) |
| 1168 | { |
| 1169 | int val = -1; |
| 1170 | supply_register(160 + (regno - FPE_REGNUM),(char *) &val); |
| 1171 | return 0; /* Pretend Success */ |
| 1172 | } |
| 1173 | else |
| 1174 | { |
| 1175 | From.Space = UDI29KSpecialRegs; |
| 1176 | From.Offset = regnum_to_srnum(regno); |
| 1177 | } |
| 1178 | |
| 1179 | if (UDIRead(From, &To, Count, Size, &CountDone, HostEndian)) |
| 1180 | error("UDIRead() failed in udi_fetch_registers"); |
| 1181 | |
| 1182 | supply_register(regno, (char *) &To); |
| 1183 | return result; |
| 1184 | } |
| 1185 | /*****************************************************************************/ |
| 1186 | /* Store a single register indicated by 'regno'. |
| 1187 | * Returns 0/-1 on success/failure. |
| 1188 | */ |
| 1189 | static int |
| 1190 | store_register (regno) |
| 1191 | int regno; |
| 1192 | { |
| 1193 | int result; |
| 1194 | UDIUInt32 From; |
| 1195 | UDIResource To; |
| 1196 | UDICount Count = 1; |
| 1197 | UDISizeT Size = 4; |
| 1198 | UDICount CountDone; |
| 1199 | UDIBool HostEndian = 0; |
| 1200 | |
| 1201 | DENTER("store_register()"); |
| 1202 | From = read_register (regno); /* get data value */ |
| 1203 | |
| 1204 | if (regno == GR1_REGNUM) |
| 1205 | { To.Space = UDI29KGlobalRegs; |
| 1206 | To.Offset = 1; |
| 1207 | result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian); |
| 1208 | /* Setting GR1 changes the numbers of all the locals, so invalidate the |
| 1209 | * register cache. Do this *after* calling read_register, because we want |
| 1210 | * read_register to return the value that write_register has just stuffed |
| 1211 | * into the registers array, not the value of the register fetched from |
| 1212 | * the inferior. |
| 1213 | */ |
| 1214 | registers_changed (); |
| 1215 | } |
| 1216 | #if defined(GR64_REGNUM) |
| 1217 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 ) |
| 1218 | { To.Space = UDI29KGlobalRegs; |
| 1219 | To.Offset = (regno - GR64_REGNUM) + 64; |
| 1220 | result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian); |
| 1221 | } |
| 1222 | #endif /* GR64_REGNUM */ |
| 1223 | else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
| 1224 | { To.Space = UDI29KGlobalRegs; |
| 1225 | To.Offset = (regno - GR96_REGNUM) + 96; |
| 1226 | result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian); |
| 1227 | } |
| 1228 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) |
| 1229 | { To.Space = UDI29KLocalRegs; |
| 1230 | To.Offset = (regno - LR0_REGNUM); |
| 1231 | result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian); |
| 1232 | } |
| 1233 | else if (regno>=FPE_REGNUM && regno<=EXO_REGNUM) |
| 1234 | { |
| 1235 | return 0; /* Pretend Success */ |
| 1236 | } |
| 1237 | else /* An unprotected or protected special register */ |
| 1238 | { To.Space = UDI29KSpecialRegs; |
| 1239 | To.Offset = regnum_to_srnum(regno); |
| 1240 | result = UDIWrite(&From, To, Count, Size, &CountDone, HostEndian); |
| 1241 | } |
| 1242 | |
| 1243 | DEXIT("store_register()"); |
| 1244 | if(result) |
| 1245 | { result = -1; |
| 1246 | error("UDIWrite() failed in store_registers"); |
| 1247 | } |
| 1248 | return result; |
| 1249 | } |
| 1250 | /********************************************************** REGNUM_TO_SRNUM */ |
| 1251 | /* |
| 1252 | * Convert a gdb special register number to a 29000 special register number. |
| 1253 | */ |
| 1254 | static int |
| 1255 | regnum_to_srnum(regno) |
| 1256 | int regno; |
| 1257 | { |
| 1258 | switch(regno) { |
| 1259 | case VAB_REGNUM: return(0); |
| 1260 | case OPS_REGNUM: return(1); |
| 1261 | case CPS_REGNUM: return(2); |
| 1262 | case CFG_REGNUM: return(3); |
| 1263 | case CHA_REGNUM: return(4); |
| 1264 | case CHD_REGNUM: return(5); |
| 1265 | case CHC_REGNUM: return(6); |
| 1266 | case RBP_REGNUM: return(7); |
| 1267 | case TMC_REGNUM: return(8); |
| 1268 | case TMR_REGNUM: return(9); |
| 1269 | case NPC_REGNUM: return(USE_SHADOW_PC ? (20) : (10)); |
| 1270 | case PC_REGNUM: return(USE_SHADOW_PC ? (21) : (11)); |
| 1271 | case PC2_REGNUM: return(USE_SHADOW_PC ? (22) : (12)); |
| 1272 | case MMU_REGNUM: return(13); |
| 1273 | case LRU_REGNUM: return(14); |
| 1274 | case IPC_REGNUM: return(128); |
| 1275 | case IPA_REGNUM: return(129); |
| 1276 | case IPB_REGNUM: return(130); |
| 1277 | case Q_REGNUM: return(131); |
| 1278 | case ALU_REGNUM: return(132); |
| 1279 | case BP_REGNUM: return(133); |
| 1280 | case FC_REGNUM: return(134); |
| 1281 | case CR_REGNUM: return(135); |
| 1282 | case FPE_REGNUM: return(160); |
| 1283 | case INTE_REGNUM: return(161); |
| 1284 | case FPS_REGNUM: return(162); |
| 1285 | case EXO_REGNUM:return(164); |
| 1286 | default: |
| 1287 | return(255); /* Failure ? */ |
| 1288 | } |
| 1289 | } |
| 1290 | /****************************************************************************/ |
| 1291 | /* |
| 1292 | * Determine the Target memory space qualifier based on the addr. |
| 1293 | * FIXME: Can't distinguis I_ROM/D_ROM. |
| 1294 | * FIXME: Doesn't know anything about I_CACHE/D_CACHE. |
| 1295 | */ |
| 1296 | static CPUSpace |
| 1297 | udi_memory_space(addr) |
| 1298 | CORE_ADDR *addr; |
| 1299 | { |
| 1300 | UDIUInt32 tstart = IMemStart; |
| 1301 | UDIUInt32 tend = tstart + IMemSize; |
| 1302 | UDIUInt32 dstart = DMemStart; |
| 1303 | UDIUInt32 dend = tstart + DMemSize; |
| 1304 | UDIUInt32 rstart = RMemStart; |
| 1305 | UDIUInt32 rend = tstart + RMemSize; |
| 1306 | |
| 1307 | if (((UDIUInt32)addr >= tstart) && ((UDIUInt32)addr < tend)) { |
| 1308 | return UDI29KIRAMSpace; |
| 1309 | } else if (((UDIUInt32)addr >= dstart) && ((UDIUInt32)addr < dend)) { |
| 1310 | return UDI29KDRAMSpace; |
| 1311 | } else if (((UDIUInt32)addr >= rstart) && ((UDIUInt32)addr < rend)) { |
| 1312 | /* FIXME: how do we determine between D_ROM and I_ROM */ |
| 1313 | return UDI29KIROMSpace; |
| 1314 | } else /* FIXME: what do me do now? */ |
| 1315 | return UDI29KDRAMSpace; /* Hmmm! */ |
| 1316 | } |
| 1317 | /*********************************************************************** STUBS |
| 1318 | */ |
| 1319 | |
| 1320 | void convert16() {;} |
| 1321 | void convert32() {;} |
| 1322 | FILE* EchoFile = 0; /* used for debugging */ |
| 1323 | int QuietMode = 0; /* used for debugging */ |
| 1324 | |
| 1325 | /****************************************************************************/ |
| 1326 | /* |
| 1327 | * Define the target subroutine names |
| 1328 | */ |
| 1329 | static struct target_ops udi_ops = { |
| 1330 | "udi", "Remote UDI connected TIP", |
| 1331 | "Remote debug an AMD 29k using UDI socket connection to TIP process", |
| 1332 | udi_open, udi_close, |
| 1333 | udi_attach, udi_detach, udi_resume, udi_wait, |
| 1334 | udi_fetch_registers, udi_store_registers, |
| 1335 | udi_prepare_to_store, |
| 1336 | udi_xfer_inferior_memory, |
| 1337 | udi_files_info, |
| 1338 | udi_insert_breakpoint, udi_remove_breakpoint, /* Breakpoints */ |
| 1339 | 0, 0, 0, 0, 0, /* Terminal handling */ |
| 1340 | udi_kill, /* FIXME, kill */ |
| 1341 | udi_load, |
| 1342 | 0, /* lookup_symbol */ |
| 1343 | udi_create_inferior, /* create_inferior */ |
| 1344 | udi_mourn, /* mourn_inferior FIXME */ |
| 1345 | 0, /* can_run */ |
| 1346 | process_stratum, 0, /* next */ |
| 1347 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ |
| 1348 | 0, 0, /* Section pointers */ |
| 1349 | OPS_MAGIC, /* Always the last thing */ |
| 1350 | }; |
| 1351 | |
| 1352 | void _initialize_remote_udi() |
| 1353 | { |
| 1354 | add_target (&udi_ops); |
| 1355 | } |
| 1356 | |
| 1357 | #ifdef NO_HIF_SUPPORT |
| 1358 | service_HIF(msg) |
| 1359 | union msg_t *msg; |
| 1360 | { |
| 1361 | return(0); /* Emulate a failure */ |
| 1362 | } |
| 1363 | #endif |