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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [or1k-tdep.c] - Blame information for rev 119

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1 104 markom 
/* Target-dependent code for the or1k architecture, for GDB, the GNU Debugger.
2 118 markom 
 
3 104 markom 
   Copyright 1988-1999, Free Software Foundation, Inc.
4 
   Contributed by Alessandro Forin(af@cs.cmu.edu at CMU
5 
   and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
6 
 
7 
   This file is part of GDB.
8 
 
9 
   This program is free software; you can redistribute it and/or modify
10 
   it under the terms of the GNU General Public License as published by
11 
   the Free Software Foundation; either version 2 of the License, or
12 
   (at your option) any later version.
13 
 
14 
   This program is distributed in the hope that it will be useful,
15 
   but WITHOUT ANY WARRANTY; without even the implied warranty of
16 
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 
   GNU General Public License for more details.
18 
 
19 
   You should have received a copy of the GNU General Public License
20 
   along with this program; if not, write to the Free Software
21 
   Foundation, Inc., 59 Temple Place - Suite 330,
22 
   Boston, MA 02111-1307, USA.  */
23 
 
24 118 markom 
#include "demangle.h"
25 104 markom 
#include "defs.h"
26 
#include "gdb_string.h"
27 
#include "frame.h"
28 
#include "inferior.h"
29 
#include "symtab.h"
30 
#include "value.h"
31 
#include "gdbcmd.h"
32 
#include "language.h"
33 
#include "gdbcore.h"
34 
#include "symfile.h"
35 
#include "objfiles.h"
36 
#include "gdbtypes.h"
37 
#include "target.h"
38 
 
39 
#include "opcode/or32.h"
40 
 
41 
/* *INDENT-OFF* */
42 
 
43 
/* Group reg name size.  See or1k_reg_names.  */
44 
int or1k_group_name_sizes[OR1K_NUM_SPR_GROUPS] = {
45 115 markom 
  80,   0,   0, 6, 4, 2,
46 
  23, 16, 1, 3, 2, 8};
47 104 markom 
 
48 115 markom 
int or1k_group_name_start[OR1K_NUM_SPR_GROUPS] = {
49 
  0,   0,   0, 253, 254, 256,
50 
  32, 248, 16, 16, 255, 0};
51 
 
52 
/* Generated reg names (max valid alias index).
53 
   See or1k_spr_reg_name.  */
54 104 markom 
int or1k_spr_valid_aliases[OR1K_NUM_SPR_GROUPS] = {
55 115 markom 
  2047+1, 2047+1, 2047+1, 258+1, 257+1, 257+1,
56 
  79+1, 263+1, 16+1, 18+1, 256+1, 7+1};
57 104 markom 
 
58 
/* Register names.  */
59 
char *or1k_reg_names[] = {
60 118 markom 
 
61 115 markom 
  /* group 0 - general*/
62 
  "VR", "UPR", "CPUCFGR", "DMMUCFGR", "IMMUCFGR", "DCCFGR", "ICCFGR", "DCFGR",
63 
  "PCCFGR", "SPR0_9", "SPR0_10", "SPR0_11", "SPR0_12", "SPR0_13", "SPR0_14", "SPR0_15",
64 
  "PC", "SR", "SPR0_18", "SPR0_19", "SPR0_20", "SPR0_21", "SPR0_22", "SPR0_23",
65 104 markom 
  "EPCR0", "EPCR1", "EPCR2", "EPCR3", "EPCR4", "EPCR5", "EPCR6", "EPCR7",
66 
  "EPCR8", "EPCR9", "EPCR10", "EPCR11", "EPCR12", "EPCR13", "EPCR14", "EPCR15",
67 
  "EEAR0","EEAR1", "EEAR2", "EEAR3", "EEAR4", "EEAR5", "EEAR6", "EEAR7",
68 
  "EEAR8", "EEAR9", "EEAR10", "EEAR11", "EEAR12", "EEAR13", "EEAR14", "EEAR15",
69 
  "ESR0", "ESR1", "ESR2", "ESR3", "ESR4", "ESR5", "ESR6", "ESR7",
70 
  "ESR8", "ESR9", "ESR10", "ESR11", "ESR12", "ESR13", "ESR14", "ESR15",
71 118 markom 
 
72 113 markom 
  /* gpr+vf registers generated */
73 104 markom 
  /* group 1 - Data MMU - not listed, generated */
74 113 markom 
  /* group 2 - Instruction MMU - not listed, generated */
75 118 markom 
 
76 113 markom 
  /* group 3 - Data cache */
77 115 markom 
  "DCCR", "DCBIR", "DCBPR", "DCBFR", "DCBWR", "DCBLR",
78 118 markom 
 
79 113 markom 
  /* group 4 - Instruction cache */
80 115 markom 
  "ICCR", "ICBLR", "ICBIR", "ICBPR",
81 118 markom 
 
82 113 markom 
  /* group 5 - MAC */
83 
  "MACLO", "MACHI",
84 118 markom 
 
85 104 markom 
  /* group 6 - debug */
86 
  "DVR0", "DVR1", "DVR2", "DVR3", "DVR4", "DVR5", "DVR6", "DVR7",
87 
  "DCR0", "DCR1", "DCR2", "DCR3", "DCR4", "DCR5", "DCR6", "DCR7",
88 115 markom 
  "DMR1", "DMR2", "DCWR0","DCWR1","DSR",  "DRR",  "DIR",
89 104 markom 
 
90 113 markom 
  /* group 7 - performance counters unit */
91 115 markom 
  "PCCM0", "PCMR1", "PCMR2", "PCMR3", "PCMR4", "PCMR5", "PCMR6", "PCMR7",
92 113 markom 
  "PCCR0", "PCCR1", "PCCR2", "PCCR3", "PCCR4", "PCCR5", "PCCR6", "PCCR7",
93 115 markom 
 
94 113 markom 
  /* group 8 - power management */
95 
  "PMR",
96 
 
97 
  /* group 9 - PIC */
98 
  "PICMR", "PICPR",
99 
 
100 
  /* group 10 - tick timer */
101 115 markom 
  "TTMR", "TTCR",
102 
 
103 
  /* group 11 - configureation */
104 
  "CPUCFGR", "DMMUCFGR", "IMMUCFGR", "DCCFGR", "ICCFGR", "SPR11_5", "DCFGR", "PCCFGR"
105 113 markom 
};
106 
 
107 
static char *or1k_gdb_reg_names[] = {
108 118 markom 
 
109 104 markom 
  /* general purpose registers */
110 
  "ZERO", "SP", "FP", "A0", "A1", "A2", "A3", "A4",
111 
  "A5", "LR", "R10", "RV", "R12", "R13", "R14", "R15",
112 
  "R16", "R17", "R18", "R19", "R20", "R21", "R22", "R23",
113 
  "R24", "R25", "R26", "R27", "R28", "R29", "R30", "R31",
114 118 markom 
 
115 104 markom 
  /* vector/floating point registers */
116 
  "VFA0",  "VFA1",  "VFA2",  "VFA3",  "VFA4",  "VFA5",  "VFRV ", "VFR7",
117 113 markom 
  "VFR8",  "VFR9",  "VFR10", "VFR11", "VFR12", "VFR13", "VFR14", "VFR15",
118 104 markom 
  "VFR16", "VFR17", "VFR18", "VFR19", "VFR20", "VFR21", "VFR22", "VFR23",
119 113 markom 
  "VFR24", "VFR25", "VFR26", "VFR27", "VFR28", "VFR29", "VFR30", "VFR31",
120 
  "PC",    "SR",    "EPCR"
121 104 markom 
};
122 
 
123 
static char *or1k_group_names[] = {
124 
  "SYS", "DMMU", "IMMU", "DCACHE", "ICACHE", "MAC", "DEBUG", "PERF", "POWER",
125 
  "PIC", "TIMER"
126 
};
127 118 markom 
 
128 113 markom 
/* Table of or1k signals.  */
129 118 markom 
static struct
130 
  {
131 113 markom 
  char *name;
132 
  char *string;
133 
  } or1k_signals [NUM_OR1K_SIGNALS + 1] =
134 118 markom 
  {
135 
    {"RSTE", "Reset Exception"},
136 
    {"DFPE", "Data Page Fault Exception"},
137 
    {"IFPE", "Instruction Page Fault Exception"},
138 
    {"LPINTE", "Low Priority Interrupt Exception"},
139 
    {"AE", "Alignment Exception"},
140 
    {"HPINTE", "High Priority Interrupt Exception"},
141 
    {"DME", "DTLB Miss Exception"},
142 
    {"IME", "ITLB Miss Exception"},
143 
    {"RE", "Range Exception"},
144 119 markom 
    {"SCE", "SCE Exception"},
145 118 markom 
    {NULL, NULL}
146 
  };
147 113 markom 
 
148 118 markom 
const char *compare_to_names[NUM_CT_NAMES] =
149 
  {
150 119 markom 
    "DISABLED", "FETCH", "LEA", "SEA", "LDATA", "SDATA", "AEA", "ADATA"
151 118 markom 
  };
152 
 
153 
const char *or1k_record_names[MAX_RECORD_NAMES] =
154 
  {
155 
    "PC", "LSEA", "LDATA", "SDATA", "READSPR", "WRITESPR", "INSTR"
156 
  };
157 
 
158 
const char *or1k_is_names[MAX_IS_NAMES] =
159 
  {
160 
    "IF_NONE", "IF_NORMAL", "IF_BRANCH", "IF_DELAY"
161 
  };
162 
 
163 
const char *or1k_ls_names[MAX_LS_NAMES] =
164 
  {
165 
    "LS_NONE", " ", "LBZ", "LBS", "LHZ", "LHS", "LWZ", "LWS",
166 
    " ", " ", "SB", " ", "SH", " ", "SW", " "
167 
  };
168 
 
169 104 markom 
/* *INDENT-ON* */
170 
 
171 
/* The list of available "set or1k " and "show or1k " commands */
172 118 markom 
static struct cmd_list_element *htrace_cmdlist = NULL;
173 
static struct cmd_list_element *htrace_mode_cmdlist = NULL;
174 104 markom 
 
175 
/* List of all saved register addresses, produced by skip_prologue.
176 
   Relative address to sp, not used if 0.  */
177 
static int or1k_saved_reg_addr[NUM_REGS];
178 
 
179 118 markom 
struct htrace_struct or1k_htrace;
180 
struct hwatch_struct or1k_hwatch[MAX_HW_WATCHES];
181 
int num_hw_watches = 0;
182 104 markom 
 
183 118 markom 
/* Trace data.  */
184 
char trace_filename[TRACE_FILENAME_SIZE] = "trace.dat";
185 
 
186 
/* Size of trace file in records.  */
187 
int trace_size = 0;
188 
 
189 
/* Previous values for buffer display.  */
190 
static int prev_length = 10;
191 
static int prev_from = 0;
192 
 
193 104 markom 
/* Converts regno to sprno.  or1k debug unit has GPRs mapped to SPRs,
194 
   which are not compact, so we are mapping them for GDB.  */
195 118 markom 
 
196 104 markom 
int
197 
or1k_regnum_to_sprnum (int regno)
198 
{
199 113 markom 
  if (regno < MAX_GPR_REGS)
200 115 markom 
    return SPR_REG(SPR_SYSTEM_GROUP, regno + CURRENT_CID * MAX_GPR_REGS + SPR_GPR_START);
201 104 markom 
  if (regno < MAX_GPR_REGS + MAX_VF_REGS)
202 113 markom 
    return SPR_REG(SPR_SYSTEM_GROUP, regno - MAX_GPR_REGS
203 115 markom 
                   + CURRENT_CID * MAX_GPR_REGS + SPR_VFPR_START);
204 113 markom 
  if (regno == PS_REGNUM)
205 
    return SR_SPRNUM;
206 104 markom 
  if (regno == PC_REGNUM)
207 
    return PC_SPRNUM;
208 
  if (regno == CCR_REGNUM)
209 113 markom 
    return CCR_SPRNUM(CURRENT_CID);
210 104 markom 
  error ("Invalid register number!");
211 
}
212 
 
213 
/* Builds and returns register name.  */
214 
 
215 
static char tmp_name[16];
216 
static char *
217 113 markom 
or1k_spr_register_name (i)
218 104 markom 
     int i;
219 
{
220 
  int group = i >> SPR_GROUP_SIZE_BITS;
221 
  int index = i & (SPR_GROUP_SIZE - 1);
222 
  switch (group)
223 
    {
224 
      /* Names covered in or1k_reg_names.  */
225 
    case 0:
226 118 markom 
 
227 115 markom 
      /* Generate upper names.  */
228 
      if (index >= SPR_GPR_START)
229 
        {
230 
          if (index < SPR_VFPR_START)
231 
            sprintf (tmp_name, "GPR%i", index - SPR_GPR_START);
232 
          else
233 
            sprintf (tmp_name, "VFR%i", index - SPR_VFPR_START);
234 
          return (char *)&tmp_name;
235 
        }
236 113 markom 
    case 3:
237 
    case 4:
238 
    case 5:
239 104 markom 
    case 6:
240 113 markom 
    case 7:
241 
    case 8:
242 
    case 9:
243 
    case 10:
244 104 markom 
      {
245 
        int group_start = 0;
246 
        for (i = 0; i < group; i++)
247 
          group_start += or1k_group_name_sizes[i];
248 
 
249 
        if (index >= or1k_group_name_sizes[group])
250 
          {
251 
            sprintf (tmp_name, "SPR%i_%i", group, index);
252 
            return (char *)&tmp_name;
253 
          }
254 
        else
255 115 markom 
          return or1k_reg_names[group_start + index - or1k_group_name_start[group]];
256 
      }
257 118 markom 
 
258 113 markom 
      /* Build names for DMMU group.  */
259 104 markom 
    case 1:
260 115 markom 
    case 2:
261 
      strcpy (tmp_name, (group == 1)?"D":"I");
262 104 markom 
      switch (index)
263 
        {
264 115 markom 
        case 16:
265 
          return strcat (tmp_name, "MMUCR");
266 
        case 17:
267 
          return strcat (tmp_name, "MMUPR");
268 
        case 18:
269 
          return strcat (tmp_name, "TLBEIR");
270 
        case 24:
271 
          return strcat (tmp_name, "ATBMR0");
272 
        case 25:
273 
          return strcat (tmp_name, "ATBMR1");
274 
        case 26:
275 
          return strcat (tmp_name, "ATBMR2");
276 
        case 27:
277 
          return strcat (tmp_name, "ATBMR3");
278 
        case 28:
279 
          return strcat (tmp_name, "ATBTR0");
280 
        case 29:
281 
          return strcat (tmp_name, "ATBTR0");
282 
        case 30:
283 
          return strcat (tmp_name, "ATBTR0");
284 
        case 31:
285 
          return strcat (tmp_name, "ATBTR0");
286 104 markom 
        default:
287 115 markom 
          if (index >= 1024) {
288 
            index -= 1024;
289 
            sprintf (tmp_name, "%sTLBW%iMR%i", (group == 1)?"D":"I", index / 128, index % 128);
290 
            return (char *)&tmp_name;
291 
          }
292 
          sprintf (tmp_name, "SPR%i_%i", group, index);
293 104 markom 
          return (char *)&tmp_name;
294 
      }
295 
    default:
296 
      sprintf (tmp_name, "SPR%i_%i", group, index);
297 
      return (char *)&tmp_name;
298 
    }
299 
}
300 
 
301 
/* Get register index in group from name.  Negative if no match.  */
302 
 
303 
static int
304 
or1k_regno_from_name (group, name)
305 
     int group;
306 
     char *name;
307 
{
308 
  int i;
309 
  if (toupper(name[0]) == 'S' && toupper(name[1]) == 'P' && toupper(name[2]) == 'R')
310 
    {
311 
      char *ptr_c;
312 
      name += 3;
313 
      i = (int) strtoul (name, &ptr_c, 10);
314 
      if (*ptr_c != '_' || i != group)
315 
        return -1;
316 
      ptr_c++;
317 
      i = (int) strtoul (name, &ptr_c, 10);
318 
      if (*ptr_c)
319 
        return -1;
320 
      else return i;
321 
    }
322 
  for (i = 0; i < or1k_spr_valid_aliases[group]; i++)
323 
    {
324 
      char *s;
325 113 markom 
      s = or1k_spr_register_name (SPR_REG(group, i));
326 104 markom 
      if (strcasecmp (name, s) == 0)
327 
        return i;
328 
    }
329 
  return -1;
330 
}
331 
 
332 118 markom 
/* Returns gdb register name.  */
333 
 
334 104 markom 
char *
335 
or1k_register_name (regno)
336 
     int regno;
337 
{
338 113 markom 
  return or1k_gdb_reg_names[regno];
339 104 markom 
}
340 
 
341 118 markom 
/* Utility function to display vf regs.  */
342 
 
343 113 markom 
static int
344 
do_vf_register (regnum)
345 
     int regnum;
346 118 markom 
{
347 
  /* do values for FP (float) regs */
348 113 markom 
  char *raw_buffer;
349 118 markom 
 
350 
   /* doubles extracted from raw hex data */
351 
  double doub, flt;
352 113 markom 
  int inv1, inv3, byte;
353 
 
354 
  raw_buffer = (char *) alloca (OR1K_VF_REGSIZE);
355 
 
356 
  /* Get the data in raw format.  */
357 
  if (read_relative_register_raw_bytes (regnum, raw_buffer))
358 
    error ("can't read register %d (%s)", regnum, REGISTER_NAME (regnum));
359 
 
360 
  flt = unpack_double (builtin_type_float, raw_buffer, &inv1);
361 
  doub = unpack_double (builtin_type_double, raw_buffer, &inv3);
362 
 
363 116 markom 
  if (inv1)
364 
    printf_filtered (" %-5s flt: <invalid float>", REGISTER_NAME (regnum));
365 
  else
366 
    printf_filtered (" %-5s flt:%-17.9g", REGISTER_NAME (regnum), flt);
367 113 markom 
  printf_filtered (inv3 ? " dbl: <invalid double> " :
368 
                   " dbl: %-24.17g ", doub);
369 
 
370 
  /* pad small registers */
371 
  for (byte = 0; byte < (OR1K_GPR_REGSIZE - REGISTER_VIRTUAL_SIZE (regnum)); byte++)
372 
    printf_filtered ("  ");
373 118 markom 
 
374 113 markom 
  /* Now print the register value in hex, endian order. */
375 
  if (TARGET_BYTE_ORDER == BIG_ENDIAN)
376 
    for (byte = REGISTER_RAW_SIZE (regnum) - REGISTER_VIRTUAL_SIZE (regnum);
377 
         byte < REGISTER_RAW_SIZE (regnum);
378 
         byte++)
379 
      printf_filtered ("%02x", (unsigned char) raw_buffer[byte]);
380 
  else
381 
    for (byte = REGISTER_VIRTUAL_SIZE (regnum) - 1;
382 
         byte >= 0;
383 
         byte--)
384 
      printf_filtered ("%02x", (unsigned char) raw_buffer[byte]);
385 
  printf_filtered ("\n");
386 
 
387 
  regnum++;
388 
  return regnum;
389 
}
390 
 
391 
/* Print a row's worth of GP (int) registers, with name labels above */
392 
 
393 
static int
394 
do_gp_register_row (regnum)
395 
     int regnum;
396 
{
397 
  /* do values for GP (int) regs */
398 
  char raw_buffer[MAX_REGISTER_RAW_SIZE];
399 118 markom 
 
400 
  /* display cols per row */
401 
  int ncols = (OR1K_64BIT_IMPLEMENTATION ? 4 : 8);
402 113 markom 
  int col, byte;
403 
  int start_regnum = regnum;
404 
  int numregs = NUM_REGS;
405 
 
406 
  /* For GP registers, we print a separate row of names above the vals */
407 
  printf_filtered ("     ");
408 
  for (col = 0; col < ncols && regnum < numregs; regnum++)
409 
    {
410 
      if (*REGISTER_NAME (regnum) == '\0')
411 
        continue;               /* unused register */
412 
      if (OR1K_IS_VF(regnum))
413 
        break;                  /* end the row: reached VF register */
414 
      printf_filtered (OR1K_64BIT_IMPLEMENTATION ? "%17s" : "%9s",
415 
                       REGISTER_NAME (regnum));
416 
      col++;
417 
    }
418 
  printf_filtered ("\n      ");
419 
 
420 
  regnum = start_regnum;        /* go back to start of row */
421 
 
422 
  /* now print the values in hex, 4 or 8 to the row */
423 
  for (col = 0; col < ncols && regnum < numregs; regnum++)
424 
    {
425 118 markom 
      /* unused register? */
426 113 markom 
      if (*REGISTER_NAME (regnum) == '\0')
427 118 markom 
        continue;
428 
 
429 
      /* end row: reached VF register? */
430 113 markom 
      if (OR1K_IS_VF(regnum))
431 118 markom 
        break;
432 
 
433 113 markom 
      /* OK: get the data in raw format.  */
434 
      if (read_relative_register_raw_bytes (regnum, raw_buffer))
435 
        error ("can't read register %d (%s)", regnum, REGISTER_NAME (regnum));
436 118 markom 
 
437 113 markom 
      /* pad small registers */
438 
      for (byte = 0; byte < (OR1K_GPR_REGSIZE - REGISTER_VIRTUAL_SIZE (regnum)); byte++)
439 
        printf_filtered ("  ");
440 118 markom 
 
441 113 markom 
      /* Now print the register value in hex, endian order. */
442 
      if (TARGET_BYTE_ORDER == BIG_ENDIAN)
443 
        for (byte = REGISTER_RAW_SIZE (regnum) - REGISTER_VIRTUAL_SIZE (regnum);
444 
             byte < REGISTER_RAW_SIZE (regnum);
445 
             byte++)
446 
          printf_filtered ("%02x", (unsigned char) raw_buffer[byte]);
447 
      else
448 
        for (byte = REGISTER_VIRTUAL_SIZE (regnum) - 1;
449 
             byte >= 0;
450 
             byte--)
451 
          printf_filtered ("%02x", (unsigned char) raw_buffer[byte]);
452 
      printf_filtered (" ");
453 
      col++;
454 
    }
455 118 markom 
 
456 
  /* ie. if we actually printed anything... */
457 
  if (col > 0)
458 113 markom 
    printf_filtered ("\n");
459 
 
460 
  return regnum;
461 
}
462 
 
463 
/* Replacement for generic do_registers_info.
464 
   Print regs in pretty columns.  */
465 118 markom 
 
466 113 markom 
static void
467 
print_register (regnum, all)
468 
     int regnum, all;
469 
{
470 
  int offset;
471 
  char raw_buffer[MAX_REGISTER_RAW_SIZE];
472 
 
473 
  /* Get the data in raw format.  */
474 
  if (read_relative_register_raw_bytes (regnum, raw_buffer))
475 
    {
476 
      printf_filtered ("%s: [Invalid]", REGISTER_NAME (regnum));
477 
      return;
478 
    }
479 
 
480 
  /* If virtual format is floating, print it that way.  */
481 
  if (OR1K_IS_VF (regnum))
482 
    do_vf_register (regnum);
483 
  else
484 
    {
485 
      int byte;
486 
      printf_filtered ("%-16s\t", REGISTER_NAME (regnum));
487 
 
488 
      /* pad small registers */
489 
      for (byte = 0; byte < (OR1K_GPR_REGSIZE - REGISTER_VIRTUAL_SIZE (regnum)); byte++)
490 
        printf_filtered ("  ");
491 118 markom 
 
492 113 markom 
      /* Now print the register value in hex, endian order. */
493 
      if (TARGET_BYTE_ORDER == BIG_ENDIAN)
494 
        for (byte = REGISTER_RAW_SIZE (regnum) - REGISTER_VIRTUAL_SIZE (regnum);
495 
             byte < REGISTER_RAW_SIZE (regnum);
496 
             byte++)
497 
          printf_filtered ("%02x", (unsigned char) raw_buffer[byte]);
498 
      else
499 
        for (byte = REGISTER_VIRTUAL_SIZE (regnum) - 1;
500 
             byte >= 0;
501 
             byte--)
502 
          printf_filtered ("%02x", (unsigned char) raw_buffer[byte]);
503 
      printf_filtered (" ");
504 
    }
505 
}
506 
 
507 
/* DO_REGISTERS_INFO: called by "info register" command */
508 
 
509 
void
510 
or1k_do_registers_info (regnum, fpregs)
511 
     int regnum;
512 
     int fpregs;
513 
{
514 
  if (fpregs && !or1k_implementation.vf_present)
515 
    {
516 
      warning ("VF register set not present in this implementation.");
517 
      fpregs = 0;
518 
    }
519 118 markom 
  if (regnum != -1)
520 113 markom 
    {
521 118 markom 
      /* do one specified register */
522 113 markom 
      if (*(REGISTER_NAME (regnum)) == '\0')
523 
        error ("Not a valid register for the current processor type");
524 
 
525 
      print_register (regnum, 0);
526 
      printf_filtered ("\n");
527 
    }
528 
  else
529 
    /* do all (or most) registers */
530 
    {
531 
      regnum = 0;
532 
      while (regnum < NUM_REGS)
533 
        {
534 
          if (OR1K_IS_VF (regnum))
535 118 markom 
            /* true for "INFO ALL-REGISTERS" command */
536 
            if (fpregs)
537 
              /* FP regs */
538 
              regnum = do_vf_register (regnum);
539 113 markom 
            else
540 118 markom 
              /* skip floating point regs */
541 
              regnum++;
542 113 markom 
          else
543 118 markom 
            /* GP (int) regs */
544 
            regnum = do_gp_register_row (regnum);
545 113 markom 
        }
546 
    }
547 
}
548 
 
549 104 markom 
/* Given the address at which to insert a breakpoint (BP_ADDR),
550 
   what will that breakpoint be?
551 
 
552 
   For or1k, we have a breakpoint instruction. Since all or1k
553 
   instructions are 32 bits, this is all we need, regardless of
554 
   address. K is not used.  */
555 
 
556 
unsigned char *
557 
or1k_breakpoint_from_pc (bp_addr, bp_size)
558 
     CORE_ADDR * bp_addr;
559 
     int *bp_size;
560 
{
561 113 markom 
  static char breakpoint[] = BRK_INSTR_STRUCT;
562 104 markom 
  *bp_size = OR1K_INSTLEN;
563 
  return breakpoint;
564 
}
565 
 
566 118 markom 
/* Return the string for a signal.
567 
   Replacement for target_signal_to_string (sig).  NOT USED.  */
568 
 
569 113 markom 
char
570 
*or1k_signal_to_string (sig)
571 
     enum target_signal sig;
572 
{
573 
  if ((sig >= TARGET_SIGNAL_FIRST) && (sig <= TARGET_SIGNAL_LAST))
574 
    return or1k_signals[sig].string;
575 
  else
576 
    if (sig <= TARGET_SIGNAL_LAST + NUM_OR1K_SIGNALS)
577 
      return or1k_signals[sig - TARGET_SIGNAL_LAST].string;
578 
    else
579 118 markom 
      return 0;
580 113 markom 
}
581 
 
582 
/* Return the name for a signal.  */
583 118 markom 
 
584 113 markom 
char *
585 
or1k_signal_to_name (sig)
586 
     enum target_signal sig;
587 
{
588 
  if (sig >= TARGET_SIGNAL_LAST)
589 
    if (sig <= TARGET_SIGNAL_LAST + NUM_OR1K_SIGNALS)
590 
      return or1k_signals[sig - TARGET_SIGNAL_LAST].name;
591 
    else
592 118 markom 
 
593 113 markom 
    /* I think the code which prints this will always print it along with
594 
       the string, so no need to be verbose.  */
595 
      return "?";
596 
  if (sig == TARGET_SIGNAL_UNKNOWN)
597 
    return "?";
598 118 markom 
  return 0;
599 113 markom 
}
600 
 
601 118 markom 
/* Given a name, return its signal.  NOT USED.  */
602 113 markom 
enum target_signal
603 
or1k_signal_from_name (name)
604 
     char *name;
605 
{
606 
  enum target_signal sig;
607 
 
608 
  /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
609 
     for TARGET_SIGNAL_SIGCHLD.  SIGIOT, on the other hand, is more
610 
     questionable; seems like by now people should call it SIGABRT
611 
     instead.  */
612 
 
613 
  /* This ugly cast brought to you by the native VAX compiler.  */
614 
  for (sig = TARGET_SIGNAL_FIRST;
615 
       or1k_signal_to_name (sig) != NULL;
616 
       sig = (enum target_signal) ((int) sig + 1))
617 
    if (STREQ (name, or1k_signal_to_name (sig)))
618 
      return sig;
619 
  return TARGET_SIGNAL_UNKNOWN;
620 
}
621 
 
622 104 markom 
/* Given a return value in `regbuf' with a type `valtype', extract and
623 
   copy its value into `valbuf'. */
624 118 markom 
 
625 104 markom 
void
626 
or1k_extract_return_value (valtype, regbuf, valbuf)
627 
     struct type *valtype;
628 
     char regbuf[REGISTER_BYTES];
629 
     char *valbuf;
630 
{
631 
  if (TYPE_CODE_FLT == TYPE_CODE (valtype))
632 
    memcpy (valbuf, &regbuf[REGISTER_BYTE (VFRV_REGNUM)], TYPE_LENGTH (valtype));
633 
  else
634 
    memcpy (valbuf, &regbuf[REGISTER_BYTE (RV_REGNUM)], TYPE_LENGTH (valtype));
635 
}
636 
 
637 
/* The or1k cc defines the following
638 
   prologue:
639 
00000000 <_proc1>:
640 
   0:   d7 e1 17 e4     l.sw 0xffffffe4(r1),r2
641 
   4:   9c 41 00 00     l.addi r2,r1,0x0
642 
   8:   9c 21 ff e8     l.addi r1,r1,0xffffffe8
643 
   c:   d7 e2 1f f8     l.sw 0xfffffff8(r2),r3
644 
  10:   d7 e2 27 f4     l.sw 0xfffffff4(r2),r4
645 
  14:   84 82 ff f8     l.lwz r4,0xfffffff8(r2)
646 
  18:   9d 24 00 00     l.addi r9,r4,0x0
647 
  1c:   00 00 00 02     l.j 0x2
648 
  20:   15 00 00 00     l.nop
649 
 
650 
00000024 <_L2>:
651 
  24:   84 41 ff fc     l.lwz r2,0xfffffffc(r1)
652 
  28:   48 00 58 00     l.jalr r11
653 
  2c:   9c 21 00 18     l.addi r1,r1,0x18 */
654 
 
655 
CORE_ADDR
656 
or1k_skip_prologue (CORE_ADDR pc)
657 
{
658 
  unsigned long inst;
659 
  CORE_ADDR skip_pc;
660 
  CORE_ADDR func_addr, func_end;
661 
  struct symtab_and_line sal;
662 
  int i;
663 
  int offset = 0;
664 
 
665 
  for (i = 0; i < MAX_GPR_REGS; i++)
666 
    or1k_saved_reg_addr[i] = -1;
667 
 
668 
  /* Is there a prologue?  */
669 
  inst = or1k_fetch_instruction (pc);
670 
  if (inst & 0xfc1ff800 != 0xd4011000) return pc; /* l.sw I(r1),r2 */
671 
  or1k_saved_reg_addr[2] = offset++;
672 
  inst = or1k_fetch_instruction (pc + OR1K_INSTLEN);
673 
  if (inst & 0xFFFF0000 != 0x9c410000) return pc; /* l.addi r2,r1,I */
674 
  pc += 2 * OR1K_INSTLEN;
675 
  inst = or1k_fetch_instruction (pc);
676 
  if (inst & 0xFFFF0000 != 0x9c210000) return pc; /* l.addi r1,r1,I */
677 
  pc += OR1K_INSTLEN;
678 
 
679 
  /* Skip stored registers.  */
680 
  inst = or1k_fetch_instruction (pc);
681 118 markom 
  while (inst & 0xfc1ff800 != 0xd4020000)  /* l.sw 0x0(r2),rx */
682 104 markom 
    {
683 
      /* get saved reg. */
684 
      or1k_saved_reg_addr[(inst >> 11) & 0x1f] = offset++;
685 
      pc += OR1K_INSTLEN;
686 
      inst = or1k_fetch_instruction (pc);
687 
    }
688 
  return pc;
689 
}
690 
 
691 
/* Determines whether this function has frame.  */
692 
 
693 
int
694 
or1k_frameless_function_invocation (struct frame_info *fi)
695 
{
696 
  CORE_ADDR func_start, after_prologue;
697 
  int frameless;
698 
  func_start = (get_pc_function_start ((fi)->pc) + FUNCTION_START_OFFSET);
699 
  after_prologue = SKIP_PROLOGUE (func_start);
700 
 
701 
  /* If we don't skip pc, we don't have even shortest possible  prologue.  */
702 
  frameless = (after_prologue <= func_start);
703 
  return frameless;
704 
}
705 
 
706 
/* Given a GDB frame, determine the address of the calling function's frame.
707 
   This will be used to create a new GDB frame struct, and then
708 
   INIT_EXTRA_FRAME_INFO and INIT_FRAME_PC will be called for the new frame. */
709 
 
710 
CORE_ADDR
711 
or1k_frame_chain (frame)
712 
     struct frame_info *frame;
713 
{
714 
  CORE_ADDR fp;
715 
  if (USE_GENERIC_DUMMY_FRAMES)
716 
    {
717 
      if (PC_IN_CALL_DUMMY (frame->pc, frame->frame, frame->frame))
718 118 markom 
        /* dummy frame same as caller's frame */
719 
        return frame->frame;
720 104 markom 
    }
721 
 
722 
  if (inside_entry_file (frame->pc) ||
723 
      frame->pc == entry_point_address ())
724 
    return 0;
725 
 
726 
  if (frame->signal_handler_caller)
727 
    fp = read_memory_integer (frame->frame, 4);
728 
  else if (frame->next != NULL
729 
           && frame->next->signal_handler_caller
730 
           && FRAMELESS_FUNCTION_INVOCATION (frame))
731 
    /* A frameless function interrupted by a signal did not change the
732 
       frame pointer.  */
733 
    fp = FRAME_FP (frame);
734 
  else
735 
    fp = read_memory_integer (frame->frame, 4);
736 
 
737 
  if (USE_GENERIC_DUMMY_FRAMES)
738 
    {
739 
      CORE_ADDR fpp, lr;
740 
 
741 
      lr = read_register (LR_REGNUM);
742 
      if (lr == entry_point_address ())
743 
        if (fp != 0 && (fpp = read_memory_integer (fp, 4)) != 0)
744 
          if (PC_IN_CALL_DUMMY (lr, fpp, fpp))
745 
            return fpp;
746 
    }
747 
 
748 
  return fp;
749 
}
750 
 
751 
/* The code to store, into a struct frame_saved_regs,
752 
   the addresses of the saved registers of frame described by FRAME_INFO.
753 
   This includes special registers such as pc and fp saved in special
754 
   ways in the stack frame.  sp is even more special:
755 
   the address we return for it IS the sp for the next frame.  */
756 
void
757 
or1k_init_saved_regs (struct frame_info *fi)
758 
{
759 118 markom 
  int i;
760 104 markom 
  CORE_ADDR frame_addr;
761 
  frame_saved_regs_zalloc (fi);
762 
 
763 
  /* Skip prologue sets or1k_saved_reg_addr[], we will use it later.  */
764 
  or1k_skip_prologue (get_pc_function_start ((fi)->pc) + FUNCTION_START_OFFSET);
765 
 
766 116 markom 
  for (i = 0; i < NUM_GPR_REGS + NUM_VF_REGS; i++)
767 104 markom 
    if (or1k_saved_reg_addr[i] >= 0)
768 
      fi->saved_regs[i] = fi->frame + or1k_saved_reg_addr[i];
769 
}
770 
 
771 
 
772 
static CORE_ADDR
773 
read_next_frame_reg (fi, regno)
774 
     struct frame_info *fi;
775 
     int regno;
776 
{
777 
  for (; fi; fi = fi->next)
778 
    {
779 
      /* We have to get the saved sp from the sigcontext
780 
         if it is a signal handler frame.  */
781 
      if (regno == SP_REGNUM && !fi->signal_handler_caller)
782 
        return fi->frame;
783 
      else
784 
        {
785 
          if (fi->saved_regs == NULL)
786 
            or1k_init_saved_regs (fi);
787 
          if (fi->saved_regs[regno])
788 
            return read_memory_integer (ADDR_BITS_REMOVE (fi->saved_regs[regno]), OR1K_GPR_REGSIZE);
789 
        }
790 
    }
791 
  return read_register (regno);
792 
}
793 
 
794 
/* Find the caller of this frame.  We do this by seeing if LR_REGNUM
795 
   is saved in the stack anywhere, otherwise we get it from the
796 
   registers.  */
797 
 
798 
CORE_ADDR
799 
or1k_frame_saved_pc (fi)
800 
     struct frame_info *fi;
801 
{
802 
  CORE_ADDR saved_pc;
803 118 markom 
 
804 104 markom 
  /* We have to get the saved pc from the sigcontext
805 
     if it is a signal handler frame.  */
806 
  if (PC_IN_CALL_DUMMY (fi->pc, fi->frame, fi->frame))
807 
    saved_pc = read_memory_integer (fi->frame, OR1K_GPR_REGSIZE);
808 
  else
809 
    saved_pc = read_next_frame_reg (fi, PC_REGNUM);
810 
 
811 
  return ADDR_BITS_REMOVE (saved_pc);
812 
}
813 
 
814 
/* Discard from the stack the innermost frame, restoring all registers.  */
815 
 
816 
void
817 
or1k_pop_frame ()
818 
{
819 
  register int regnum;
820 
  struct frame_info *frame = get_current_frame ();
821 
  CORE_ADDR new_sp = FRAME_FP (frame);
822 
 
823 
  write_register (PC_REGNUM, FRAME_SAVED_PC (frame));
824 
  if (frame->saved_regs == NULL)
825 
    or1k_init_saved_regs (frame);
826 
  for (regnum = 0; regnum < NUM_REGS; regnum++)    {
827 
      if (regnum != SP_REGNUM && regnum != PC_REGNUM
828 
          && frame->saved_regs[regnum] >= 0)
829 
        write_register (regnum,
830 
                        read_memory_integer (frame->saved_regs[regnum],
831 
                                             OR1K_GPR_REGSIZE));
832 
    }
833 
  write_register (SP_REGNUM, new_sp);
834 
  flush_cached_frames ();
835 
}
836 
 
837 
CORE_ADDR
838 
or1k_push_arguments (nargs, args, sp, struct_return, struct_addr)
839 
     int nargs;
840 
     value_ptr *args;
841 
     CORE_ADDR sp;
842 
     int struct_return;
843 
     CORE_ADDR struct_addr;
844 
{
845 
  int argreg;
846 
  int float_argreg;
847 
  int argnum;
848 
  int len = 0;
849 
  int stack_offset = 0;
850 
 
851 
  /* Initialize the integer and float register pointers.  */
852 
  argreg = A0_REGNUM;
853 
  float_argreg = VFA0_REGNUM;
854 
 
855 
  /* The struct_return pointer occupies the RV value register.  */
856 
  if (struct_return)
857 
    write_register (RV_REGNUM, struct_addr);
858 
 
859 
  /* Now load as many as possible of the first arguments into
860 
     registers, and push the rest onto the stack.  Loop thru args
861 
     from first to last.  */
862 
  for (argnum = 0; argnum < nargs; argnum++)
863 
    {
864 
      char *val;
865 
      char valbuf[MAX_REGISTER_RAW_SIZE];
866 
      value_ptr arg = args[argnum];
867 
      struct type *arg_type = check_typedef (VALUE_TYPE (arg));
868 
      int len = TYPE_LENGTH (arg_type);
869 
      enum type_code typecode = TYPE_CODE (arg_type);
870 
 
871 
      /* The EABI passes structures that do not fit in a register by
872 
         reference. In all other cases, pass the structure by value.  */
873 
      if (len > OR1K_GPR_REGSIZE &&
874 
          (typecode == TYPE_CODE_STRUCT || typecode == TYPE_CODE_UNION))
875 
        {
876 
          store_address (valbuf, OR1K_GPR_REGSIZE, VALUE_ADDRESS (arg));
877 
          typecode = TYPE_CODE_PTR;
878 
          len = OR1K_GPR_REGSIZE;
879 
          val = valbuf;
880 
        }
881 
      else
882 
        {
883 
          val = (char *) VALUE_CONTENTS (arg);
884 
 
885 
          if (typecode == TYPE_CODE_FLT
886 
              /* Doubles are not stored in regs on 32b target.  */
887 
              && len <= OR1K_VF_REGSIZE
888 
              && OR1K_VF_PRESENT)
889 
            {
890 
              if (float_argreg <= OR1K_LAST_FP_ARG_REGNUM)
891 
                {
892 
                  CORE_ADDR regval = extract_address (val, len);
893 
                  write_register (float_argreg++, regval);
894 
                }
895 
              else
896 
                {
897 
                  write_memory ((CORE_ADDR) sp, val, OR1K_VF_REGSIZE);
898 
                  sp -= OR1K_STACK_ALIGN;
899 
                }
900 
            }
901 
          else
902 
            {
903 
              if (argreg <= OR1K_LAST_ARG_REGNUM)
904 
                {
905 
                  CORE_ADDR regval = extract_address (val, len);
906 
                  write_register (argreg++, regval);
907 
                }
908 
              else
909 
                {
910 
                  write_memory ((CORE_ADDR) sp, val, OR1K_GPR_REGSIZE);
911 
                  sp -= OR1K_STACK_ALIGN;
912 
                }
913 
            }
914 
        }
915 
    }
916 
 
917 
  /* Return adjusted stack pointer.  */
918 
  return sp;
919 
}
920 
 
921 
/* Return nonzero when instruction has delay slot.  */
922 
static int
923 
is_delayed (insn)
924 
     unsigned long insn;
925 
{
926 
  int i;
927 
  for (i = 0; i < num_opcodes; ++i)
928 
    if ((or32_opcodes[i].flags & OR32_IF_DELAY)
929 
        && (or32_opcode_match (insn, or32_opcodes[i].encoding)))
930 
      break;
931 
  return (i < num_opcodes);
932 
}
933 
 
934 
int
935 
or1k_step_skips_delay (pc)
936 
     CORE_ADDR pc;
937 
{
938 
  char buf[OR1K_INSTLEN];
939 
 
940 
  if (target_read_memory (pc, buf, OR1K_INSTLEN) != 0)
941 
    /* If error reading memory, guess that it is not a delayed branch.  */
942 
    return 0;
943 
  return is_delayed ((unsigned long) extract_unsigned_integer (buf, OR1K_INSTLEN));
944 
}
945 
 
946 
CORE_ADDR
947 
or1k_push_return_address (pc, sp)
948 
     CORE_ADDR pc;
949 
     CORE_ADDR sp;
950 
{
951 
  /* Set the return address register to point to the entry
952 
     point of the program, where a breakpoint lies in wait.  */
953 
  write_register (LR_REGNUM, CALL_DUMMY_ADDRESS ());
954 
  return sp;
955 
}
956 
 
957 115 markom 
/* Parses args for spr name and puts result into group and index.  */
958 
 
959 104 markom 
static char *
960 
parse_spr_params (args, group, index)
961 
                  char *args;
962 
                  int *group, *index;
963 
{
964 
  *index = -1;
965 
  if (args)
966 
    {
967 
      int i;
968 
      char *ptr_c;
969 118 markom 
 
970 104 markom 
      /* Check if group number was supplied.  */
971 
      ptr_c = args;
972 
      while (*ptr_c != ' ' && *ptr_c != 0)
973 
        ptr_c++;
974 
      *ptr_c = 0;
975 
 
976 
      *group = (int) strtoul (args, &ptr_c, 0);
977 
      if (*ptr_c != 0)
978 
        {
979 
          *group = OR1K_NUM_SPR_GROUPS;
980 118 markom 
 
981 104 markom 
          /* check for group name */
982 
          for (i = 0; i < OR1K_NUM_SPR_GROUPS; i++)
983 
            if (strcasecmp (or1k_group_names[i], args) == 0)
984 
              {
985 
                *group = i;
986 
                break;
987 
              }
988 118 markom 
 
989 104 markom 
          /* Invalid group => check all register names in all groups.  */
990 
          if (*group >= OR1K_NUM_SPR_GROUPS)
991 
            {
992 
              for (i = 0; i < OR1K_NUM_SPR_GROUPS; i++)
993 
                {
994 
                  int regno;
995 
                  regno = or1k_regno_from_name (i, args);
996 
                  if (regno >= 0)
997 
                    {
998 
                      *group = i;
999 
                      *index = regno;
1000 
                    }
1001 
                }
1002 
            }
1003 
        }
1004 
      if (*group < 0 || *group >= OR1K_NUM_SPR_GROUPS)
1005 
        error ("Invalid group or register.\n");
1006 
 
1007 
      if (*index < 0)
1008 
        {
1009 
          args += strlen(args) + 1;
1010 
          ptr_c = args;
1011 
          while (*ptr_c != ' ' && *ptr_c != 0)
1012 
            ptr_c++;
1013 
          *ptr_c = 0;
1014 
          *index = (int) strtoul (args, &ptr_c, 0);
1015 
          if (*ptr_c != 0)
1016 
            *index = or1k_regno_from_name (*group, args);
1017 115 markom 
          else *index = -1;
1018 104 markom 
 
1019 
          if (*index < 0)
1020 
            {
1021 115 markom 
              printf_filtered ("No register supplied. Valid registers are:\n");
1022 104 markom 
              for (i = 0; i < or1k_spr_valid_aliases[*group]; i++)
1023 115 markom 
                {
1024 
                  char reg_name[16];
1025 
                  char *gen_name = or1k_spr_register_name (SPR_REG(*group, i));
1026 
                  sprintf (reg_name, "SPR%i_%i", *group, i);
1027 
                  if (strcmp (reg_name, gen_name) != 0)
1028 
                    printf_filtered ("%s\t", gen_name);
1029 
                }
1030 
              printf_filtered ("\n");
1031 104 markom 
              return args + strlen(args) + 1;
1032 
            }
1033 
        }
1034 
    }
1035 
  else
1036 
    {
1037 118 markom 
      /* No parameters - print groups */
1038 104 markom 
      int i;
1039 115 markom 
      printf_filtered ("No parameter supplied. Valid groups are:\n");
1040 104 markom 
      for (i = 0; i < OR1K_NUM_SPR_GROUPS; i++)
1041 115 markom 
        printf_filtered ("%s\t", or1k_group_names[i]);
1042 
      printf_filtered ("\nSingle register name or register name or number after the group can be also supplied.\n");
1043 
      return args;
1044 104 markom 
    }
1045 
  return args + strlen(args) + 1;
1046 
}
1047 
 
1048 
/* SPR register info.  */
1049 
 
1050 
void
1051 116 markom 
info_spr_command (args, from_tty)
1052 
     char *args;
1053 
     int from_tty;
1054 104 markom 
{
1055 
  int group, index;
1056 
  parse_spr_params (args, &group, &index);
1057 
  if (index >= 0)
1058 
    {
1059 
      printf_unfiltered ("%s.%s (SPR%i_%i) set to %i(%X), was:%i(%X)\n", or1k_group_names[group],
1060 113 markom 
                         or1k_spr_register_name (SPR_REG(group, index)), group, index,
1061 
                         or1k_read_spr_reg (SPR_REG(group, index)));
1062 104 markom 
    }
1063 
}
1064 
 
1065 
/* Set SPR register.  */
1066 
 
1067 
void
1068 116 markom 
spr_command (args, from_tty)
1069 
     char *args;
1070 
     int from_tty;
1071 104 markom 
{
1072 
  int group, index;
1073 
  char *nargs = parse_spr_params (args, &group, &index);
1074 
  if (index >= 0)
1075 
    {
1076 
      unsigned long prev;
1077 
      unsigned long value;
1078 
      char *ptr_c;
1079 
 
1080 115 markom 
      /* Any arguments left?  */
1081 
      if (args + strlen(args) >= nargs)
1082 
        error ("Invalid register value.");
1083 
 
1084 113 markom 
      prev = or1k_read_spr_reg (SPR_REG(group, index));
1085 104 markom 
 
1086 
      ptr_c = nargs;
1087 
      while (*ptr_c != ' ' && *ptr_c != 0)
1088 
        ptr_c++;
1089 
      *ptr_c = 0;
1090 
      value = strtoul (nargs, &ptr_c, 0);
1091 
      if (*ptr_c != 0)
1092 
        error ("Invalid register value.");
1093 
      printf_unfiltered ("%s.%s (SPR%i_%i) set to %i(%X), was:%i(%X)\n", or1k_group_names[group],
1094 113 markom 
                         or1k_spr_register_name (SPR_REG(group, index)), group, index,
1095 104 markom 
                         value, value, prev, prev);
1096 
    }
1097 
}
1098 
 
1099 
/* Calls extended command on target.  */
1100 
 
1101 
void
1102 116 markom 
sim_command (args, from_tty)
1103 
     char *args;
1104 
     int from_tty;
1105 104 markom 
{
1106 
  or1k_sim_cmd (args, from_tty);
1107 
}
1108 
 
1109 118 markom 
 
1110 
static union exp_element exp_error;
1111 
 
1112 
/* Parses compare variable and returns it into ct.  */
1113 
 
1114 
union exp_element * or1k_parse_ct (exp, ct)
1115 116 markom 
     union exp_element *exp;
1116 118 markom 
     int *ct;
1117 116 markom 
{
1118 118 markom 
  int i;
1119 
  if (exp->opcode != OP_INTERNALVAR)
1120 
    error ("Valid lvalue expected.");
1121 
  exp++;
1122 
 
1123 
  for (i = 1; i < NUM_CT_NAMES; i++)
1124 
    if (strcasecmp (compare_to_names[i], exp->internalvar->name) == 0) break;
1125 
 
1126 
  if (i >= NUM_CT_NAMES)
1127 
    error ("Invalid compare to operand.");
1128 
  *ct = i;
1129 
  exp++;
1130 
 
1131 
  if (exp->opcode != OP_INTERNALVAR)
1132 
    return &exp_error;
1133 
  exp++;
1134 
  return exp;
1135 
}
1136 
 
1137 
/* Parses compare value and returns it into cv.  */
1138 
 
1139 
union exp_element * or1k_parse_cv (exp, cv)
1140 
     union exp_element *exp;
1141 
     unsigned int *cv;
1142 
{
1143 
  switch (exp->opcode)
1144 116 markom 
    {
1145 118 markom 
    case UNOP_IND:
1146 
      exp++;
1147 
      exp = or1k_parse_cv (exp, cv);
1148 
      *cv = or1k_fetch_word (*cv);
1149 
      break;
1150 
    case OP_LONG:
1151 
      exp += 2;
1152 
      *cv = exp->longconst;
1153 
      exp += 2;
1154 
      break;
1155 
    case OP_REGISTER:
1156 
      exp++;
1157 
      *cv = read_register (exp->longconst);
1158 
      exp += 2;
1159 
      break;
1160 
    default:
1161 
      error ("Value expected.");
1162 116 markom 
    }
1163 118 markom 
  return exp;
1164 116 markom 
}
1165 
 
1166 118 markom 
/* Parse conditional.
1167 
   Puts freshly allocated array of matchpoints into match.  */
1168 
 
1169 
union exp_element *
1170 
or1k_parse_cond (exp, match, nmatch)
1171 
     union exp_element *exp;
1172 
     struct matchpoint **match;
1173 
     int *nmatch;
1174 
{
1175 
  unsigned int ct;
1176 
  *match = (struct matchpoint *) malloc (sizeof (struct matchpoint));
1177 
  *nmatch = 1;
1178 
  switch (exp->opcode)
1179 
    {
1180 
    case BINOP_EQUAL:
1181 
      (*match)->dcr.cc = CC_EQUAL;
1182 
      break;
1183 
    case BINOP_NOTEQUAL:
1184 
      (*match)->dcr.cc = CC_NEQUAL;
1185 
      break;
1186 
    case BINOP_LESS:
1187 
      (*match)->dcr.cc = CC_LESS;
1188 
      break;
1189 
    case BINOP_GTR:
1190 
      (*match)->dcr.cc = CC_GREAT;
1191 
      break;
1192 
    case BINOP_LEQ:
1193 
      (*match)->dcr.cc = CC_LESSE;
1194 
      break;
1195 
    case BINOP_GEQ:
1196 
      (*match)->dcr.cc = CC_GREATE;
1197 
      break;
1198 
    case BINOP_BITWISE_AND:
1199 
      (*match)->dcr.cc = CC_MASKED;
1200 
      break;
1201 
    default:
1202 
      return &exp_error;
1203 
    }
1204 
 
1205 
  exp++;
1206 
  (*match)->dcr.dp = 1;
1207 
  (*match)->dcr.sc = 0;
1208 
  if (exp->opcode == OP_INTERNALVAR)
1209 
    {
1210 
      exp = or1k_parse_ct (exp, &ct);
1211 
      exp = or1k_parse_cv (exp, &(*match)->dvr);
1212 
    }
1213 
  else
1214 
    {
1215 
      exp = or1k_parse_cv (exp, &(*match)->dvr);
1216 
      exp = or1k_parse_ct (exp, &ct);
1217 
    }
1218 
 
1219 
  (*match)->dcr.ct = ct;
1220 
  (*match)->chain_type = CHAINING_NONE;
1221 
  (*match)->cause_breakpoint = 0;
1222 
  return exp;
1223 
}
1224 
 
1225 
/* Parses expression with && or || operators.
1226 
   Puts freshly allocated array of matchpoints into match.
1227 
   valid & 1: && is allowed,
1228 
   valid & 2: || is allowed.  */
1229 
 
1230 
union exp_element *
1231 
or1k_parse_any (exp, match, nmatch, valid)
1232 
     union exp_element *exp;
1233 
     struct matchpoint **match;
1234 
     int *nmatch;
1235 
     int valid;
1236 
{
1237 
  union exp_element *tmp;
1238 
  int first_and_only = 0, first_or_only = 0;
1239 
  struct matchpoint *tmp_match1, *tmp_match2, *tmpm;
1240 
  int tmp_nmatch1, tmp_nmatch2, tmpn;
1241 
 
1242 
  switch (exp->opcode)
1243 
    {
1244 
    case BINOP_LOGICAL_AND:
1245 
      if (!(valid & 1))
1246 
        return &exp_error;
1247 
      exp++;
1248 
 
1249 
      /* Parse first argument.  */
1250 
      tmp = or1k_parse_any (exp, &tmp_match1, &tmp_nmatch1, 1);
1251 
      if (tmp == &exp_error)
1252 
        exp = or1k_parse_any (exp, &tmp_match1, &tmp_nmatch1, valid);
1253 
      else
1254 
        {
1255 
          /* and_only successful */
1256 
          exp = tmp;
1257 
          first_and_only = 1;
1258 
        }
1259 
      if (exp == &exp_error)
1260 
        return &exp_error;
1261 
 
1262 
      /* Parse second argument.  */
1263 
      if (first_and_only)
1264 
        exp = or1k_parse_any (exp, &tmp_match2, &tmp_nmatch2, valid);
1265 
      else
1266 
        exp = or1k_parse_any (exp, &tmp_match2, &tmp_nmatch2, 1);
1267 
 
1268 
      if (exp == &exp_error)
1269 
        return &exp_error;
1270 
 
1271 
      if (first_and_only)
1272 
        {
1273 
          /* Exchange structures, so that and_only is listed last.  */
1274 
          struct matchpoint *tmpm = tmp_match1;
1275 
          int tmpn = tmp_nmatch1;
1276 
          tmp_match1 = tmp_match2;
1277 
          tmp_nmatch1 = tmp_nmatch2;
1278 
          tmp_match2 = tmpm;
1279 
          tmp_nmatch2 = tmpn;
1280 
        }
1281 
 
1282 
      *nmatch = tmp_nmatch1 + tmp_nmatch2;
1283 
      *match = (struct matchpoint *)malloc (*nmatch * sizeof (struct matchpoint));
1284 
      memcpy (*match, tmp_match1, tmp_nmatch1 * sizeof (struct matchpoint));
1285 
      free (tmp_match1);
1286 
      tmp_match2[0].chain_type = CHAINING_AND;
1287 
      memcpy (*match + tmp_nmatch1, tmp_match2, tmp_nmatch2 * sizeof (struct matchpoint));
1288 
      free (tmp_match2);
1289 
      return exp;
1290 
 
1291 
    case BINOP_LOGICAL_OR:
1292 
      if (!(valid & 2))
1293 
        return &exp_error;
1294 
      exp++;
1295 
 
1296 
      /* Parse first argument.  */
1297 
      tmp = or1k_parse_any (exp, &tmp_match1, &tmp_nmatch1, 2);
1298 
      if (tmp == &exp_error)
1299 
        exp = or1k_parse_any (exp, &tmp_match1, &tmp_nmatch1, valid);
1300 
      else
1301 
        {
1302 
          /* and_only successful */
1303 
          exp = tmp;
1304 
          first_or_only = 1;
1305 
        }
1306 
      if (exp == &exp_error)
1307 
        return &exp_error;
1308 
 
1309 
      /* Parse second argument.  */
1310 
      if (first_or_only)
1311 
        exp = or1k_parse_any (exp, &tmp_match2, &tmp_nmatch2, valid);
1312 
      else
1313 
        exp = or1k_parse_any (exp, &tmp_match2, &tmp_nmatch2, 2);
1314 
 
1315 
      if (exp == &exp_error)
1316 
        return &exp_error;
1317 
 
1318 
      if (first_or_only)
1319 
        {
1320 
          /* Exchange structures, so that and_only is listed first.  */
1321 
          struct matchpoint *tmpm = tmp_match1;
1322 
          int tmpn = tmp_nmatch1;
1323 
          tmp_match1 = tmp_match2;
1324 
          tmp_nmatch1 = tmp_nmatch2;
1325 
          tmp_match2 = tmpm;
1326 
          tmp_nmatch2 = tmpn;
1327 
        }
1328 
 
1329 
      *nmatch = tmp_nmatch1 + tmp_nmatch2;
1330 
      *match = (struct matchpoint *)malloc (*nmatch * sizeof (struct matchpoint));
1331 
      memcpy (*match, tmp_match1, tmp_nmatch1 * sizeof (struct matchpoint));
1332 
      free (tmp_match1);
1333 
      tmp_match2[0].chain_type = CHAINING_OR;
1334 
      memcpy (*match + tmp_nmatch1, tmp_match2, tmp_nmatch2 * sizeof (struct matchpoint));
1335 
      free (tmp_match2);
1336 
      return exp;
1337 
 
1338 
    default:
1339 
      return or1k_parse_cond (exp, match, nmatch);
1340 
    }
1341 
}
1342 
 
1343 
/* Parses sequence of ||s.
1344 
   Puts freshly allocated array of matchpoints into match.  */
1345 
 
1346 
union exp_element *
1347 
or1k_parse_or (exp, match, nmatch, set_break)
1348 
     union exp_element *exp;
1349 
     struct matchpoint **match;
1350 
     int *nmatch;
1351 
     int set_break;
1352 
{
1353 
  struct matchpoint *tmp_match1, *tmp_match2;
1354 
  int tmp_nmatch1, tmp_nmatch2;
1355 
 
1356 
  switch (exp->opcode)
1357 
    {
1358 
    case BINOP_LOGICAL_OR:
1359 
      exp++;
1360 
      exp = or1k_parse_or (exp, &tmp_match1, &tmp_nmatch1);
1361 
      if (exp == &exp_error)
1362 
        return &exp_error;
1363 
 
1364 
      exp = or1k_parse_any (exp, &tmp_match2, &tmp_nmatch2, 3);
1365 
      if (set_break)
1366 
        {
1367 
          tmp_match1[tmp_nmatch1 - 1].cause_breakpoint = 1;
1368 
          tmp_match2[tmp_nmatch2 - 1].cause_breakpoint = 1;
1369 
        }
1370 
      *nmatch = tmp_nmatch1 + tmp_nmatch2;
1371 
      *match = (struct matchpoint *)malloc (*nmatch * sizeof (struct matchpoint));
1372 
      memcpy (*match, tmp_match1, tmp_nmatch1 * sizeof (struct matchpoint));
1373 
      free (tmp_match1);
1374 
      memcpy (*match + tmp_nmatch1, tmp_match2, tmp_nmatch2 * sizeof (struct matchpoint));
1375 
      free (tmp_match2);
1376 
      return exp;
1377 
 
1378 
    default:
1379 
      return or1k_parse_any (exp, match, nmatch, 3);
1380 
      if (set_break)
1381 
        (*match)[*nmatch - 1].cause_breakpoint = 1;
1382 
    }
1383 
}
1384 
 
1385 
/* Prints single matchpoint from specified struct.  */
1386 
 
1387 
static void
1388 
print_matchpoint_struct (mp)
1389 
     struct matchpoint *mp;
1390 
{
1391 
  printf_filtered ("%-6s (%i) %u, ON=%i, chain_type=%i, cause break=%i\n", compare_to_names[mp->dcr.ct],
1392 
                   mp->dcr.cc, mp->dvr, mp->dcr.dp, mp->chain_type, mp->cause_breakpoint);
1393 
}
1394 
 
1395 
/* Build watchpoint(s) based on given structure.  */
1396 
 
1397 113 markom 
static void
1398 118 markom 
set_matchpoints (match, nmatch)
1399 
     struct matchpoint *match;
1400 
     int nmatch;
1401 
{
1402 
  int i;
1403 
  debug_regs_changed = 1;
1404 
  sift_matchpoints ();
1405 
  for (i = 0; i < nmatch; i++)
1406 
    {
1407 
      int num = or1k_implementation.num_used_matchpoints;
1408 
      dcr[num] = match[i].dcr;
1409 
      dvr[num] = match[i].dvr;
1410 
 
1411 
      /* Set chaining bits.  */
1412 
      dmr1 &= ~(3 << (2 * num));
1413 
      dmr1 |= match[i].chain_type << (2 * num);
1414 
 
1415 
      /* Set watchpoint bits */
1416 
      dmr2 &= 1 << num;
1417 
      dmr2 |= match[i].cause_breakpoint << num;
1418 
      matchpoint_user_count[i]++;
1419 
      or1k_implementation.num_used_matchpoints++;
1420 
    }
1421 
}
1422 
 
1423 
/* Returns nonzero, if matchpoints [start .. start+nmatch-1] are
1424 
   equal to match record. */
1425 
 
1426 
static int
1427 
matchpoint_matches (start, match, nmatch)
1428 
     int start;
1429 
     struct matchpoint *match;
1430 
     int nmatch;
1431 
{
1432 
  int i;
1433 
  if (nmatch + start >= or1k_implementation.num_matchpoints)
1434 
    return 0;
1435 
 
1436 
  for (i = 0; i < nmatch; i++)
1437 
    {
1438 
      int j = i + start;
1439 
 
1440 
      /* Everything exept cause breakpoint must match.  */
1441 
      if (dcr[j].dp != match[i].dcr.dp
1442 
          || dcr[j].ct != match[i].dcr.ct
1443 
          || dcr[j].cc != match[i].dcr.cc
1444 
          || dcr[j].sc != match[i].dcr.sc
1445 
          || dvr[j] != match[i].dvr
1446 
          || match[i].chain_type != (dmr1 >> (2 * j)) & 3)
1447 
        return 0;
1448 
    }
1449 
  return 1;
1450 
}
1451 
 
1452 
static void
1453 113 markom 
hwatch_command (arg, from_tty)
1454 
     char *arg;
1455 
     int from_tty;
1456 
{
1457 
  struct expression *exp;
1458 118 markom 
  int i, nfree, nmatch, remove = 0;
1459 
  struct matchpoint *match;
1460 
 
1461 
  if (arg == NULL)
1462 
    arg = "";
1463 
  if (strncasecmp ("remove ", arg, 7) == 0)
1464 
    {
1465 
      arg += 7;
1466 
      remove = 1;
1467 
    }
1468 
 
1469 113 markom 
  /* Parse arguments.  */
1470 
  exp = parse_exp_1 (&arg, 0, 0);
1471 
 
1472 118 markom 
#ifdef DEBUG
1473 113 markom 
  dump_prefix_expression (exp, gdb_stdout, "expr1");
1474 118 markom 
#endif
1475 113 markom 
 
1476 118 markom 
  if (or1k_parse_or (&exp->elts[0], &match, &nmatch, 1) == &exp_error)
1477 
    error ("Watchpoint too complex.");
1478 
 
1479 
  for (i = 0; i < nmatch; i++)
1480 
    print_matchpoint_struct (&match[i]);
1481 
 
1482 
  if (remove)
1483 116 markom 
    {
1484 118 markom 
      int start = -1;
1485 
      int cleared = 0;
1486 
 
1487 
      if (num_hw_watches <= 0)
1488 
        error ("No extended hardware supported watchpoints present.");
1489 
 
1490 
      for (i = 0; i < num_hw_watches; i++)
1491 
        if (matchpoint_matches (or1k_hwatch[i].matchpoint_start, match, nmatch))
1492 
          {
1493 
            start = or1k_hwatch[i].matchpoint_start;
1494 
            break;
1495 
          }
1496 
 
1497 
      if (start < 0)
1498 
        error ("Watchpoint not found.");
1499 
 
1500 
      for (i = 0; i < nmatch; i++)
1501 
        {
1502 
          int j = start + i;
1503 
          if (--matchpoint_user_count[j] <= 0)
1504 
            {
1505 
              debug_regs_changed = 1;
1506 
              memset (&dcr[j], 0, sizeof (dcr[j]));
1507 
              or1k_implementation.num_used_matchpoints--;
1508 
              cleared = 1;
1509 
            }
1510 
        }
1511 
      if (!cleared)
1512 
        warning ("No matchpoint(s) freed. Resources are busy.");
1513 116 markom 
    }
1514 
  else
1515 118 markom 
    {
1516 
      if (num_hw_watches >= MAX_HW_WATCHES)
1517 
        error ("Number of watchpoints too large.");
1518 
 
1519 
      /* Now we have to find out if given prefix expression matches
1520 
         our HW based support. It may take up to
1521 
         or1k_implementation.num_matchpoints - or1k_implementation.num_used_matchpoints. */
1522 
      nfree = or1k_implementation.num_matchpoints - or1k_implementation.num_used_matchpoints;
1523 
 
1524 
      if (nmatch > nfree)
1525 
        error ("Not enough free matchpoint resources.");
1526 
 
1527 
      /* Build watchpoint(s) based on just built structure.  */
1528 
      or1k_hwatch[num_hw_watches].matchpoint_start = or1k_implementation.num_used_matchpoints;
1529 
      set_matchpoints (match, nmatch);
1530 
      num_hw_watches++;
1531 
      printf_unfiltered ("Watchpoint successfully allocated.\n");
1532 
    }
1533 
  free (match);
1534 113 markom 
  free (exp);
1535 
}
1536 
 
1537 118 markom 
static void
1538 
htrace_command (args, from_tty)
1539 
     char *args;
1540 
     int from_tty;
1541 
{
1542 
  help_list (htrace_cmdlist, "htrace ", all_commands, gdb_stdout);
1543 
}
1544 
 
1545 
static void
1546 
htrace_mode_command (args, from_tty)
1547 
     char *args;
1548 
     int from_tty;
1549 
{
1550 
  help_list (htrace_mode_cmdlist, "htrace mode ", all_commands, gdb_stdout);
1551 
}
1552 
 
1553 
static void
1554 
htrace_mode_contin_command (args, from_tty)
1555 
     char *args;
1556 
     int from_tty;
1557 
{
1558 
  or1k_htrace.moder.contin = 1;
1559 
  printf_unfiltered ("Continuous trace mode set.\n");
1560 
}
1561 
 
1562 
static void
1563 
htrace_mode_suspend_command (args, from_tty)
1564 
     char *args;
1565 
     int from_tty;
1566 
{
1567 
  or1k_htrace.moder.contin = 0;
1568 
  printf_unfiltered ("Suspend trace mode set.\n");
1569 
}
1570 
 
1571 
static void print_event_struct (event, stop)
1572 
     struct htrace_event_struct *event;
1573 
     int stop;
1574 
{
1575 
  int i;
1576 
  if (event->operation == TRIGOP_ANY)
1577 
    if (stop)
1578 
      printf_filtered ("not active");
1579 
    else
1580 
      printf_filtered ("always active");
1581 
  else
1582 
    {
1583 
      char *comma;
1584 
      if (event->operation == TRIGOP_AND)
1585 
        comma = "&(";
1586 
      else
1587 
        comma = "|(";
1588 
 
1589 
      if (event->is_valid)
1590 
        {
1591 
          printf_filtered ("%s%s", comma, or1k_is_names[event->is_trig]);
1592 
          comma = ", ";
1593 
        }
1594 
      if (event->ls_valid)
1595 
        {
1596 
          printf_filtered ("%s%s", comma, or1k_ls_names[event->ls_trig]);
1597 
          comma = ", ";
1598 
        }
1599 
      if (event->bp_valid)
1600 
        {
1601 
          printf_filtered ("%sbreak", comma);
1602 
          comma = ", ";
1603 
        }
1604 
      if (event->wp_valid)
1605 
        for (i = 0; i < 11; i++)
1606 
          if ((event->wp_trig >> i) & 1)
1607 
            {
1608 
              printf_filtered ("%sWP%i", comma, i);
1609 
              comma = ", ";
1610 
            }
1611 
      if (comma[0] == ',')
1612 
        printf_filtered (")");
1613 
      else
1614 
        printf_filtered ("not active");
1615 
    }
1616 
}
1617 
 
1618 
static void
1619 
print_record_struct (record)
1620 
     struct htrace_record_struct *record;
1621 
{
1622 
  int i;
1623 
  char *comma = "";
1624 
  for (i = 0; i < MAX_RECORD_NAMES; i++)
1625 
    {
1626 
      if ((record->rec >> i)&1)
1627 
        {
1628 
          printf_filtered ("%s%s", comma, or1k_record_names[i]);
1629 
          comma = ", ";
1630 
        }
1631 
    }
1632 
  if (!*comma)
1633 
    printf_unfiltered ("none");
1634 
}
1635 
 
1636 
static void
1637 
htrace_info_command (args, from_tty)
1638 
     char *args;
1639 
     int from_tty;
1640 
{
1641 
  int i;
1642 
  printf_filtered ("Trace trigger: ");
1643 
  print_event_struct (&or1k_htrace.trig, 0);
1644 
  printf_filtered ("\nTrace qualifier: ");
1645 
  print_event_struct (&or1k_htrace.qual, 0);
1646 
  for (i = 0; i < MAX_MATCHPOINTS; i++)
1647 
    {
1648 
      printf_filtered ("\n WP%i records: ", i);
1649 
      print_record_struct (&or1k_htrace.recwp[i]);
1650 
    }
1651 
  printf_filtered ("\n BP records: ");
1652 
  print_record_struct (&or1k_htrace.recbp);
1653 
  printf_filtered ("\nTrace stop: ");
1654 
  print_event_struct (&or1k_htrace.stop, 1);
1655 
  printf_filtered ("\n");
1656 
}
1657 
 
1658 
/* Parses event from given string.
1659 
   Result is placed into event structure, and previously allocated
1660 
   resources are freed.  Parameter stop is nonzero, when we are parsing
1661 
   for stop criteria.  */
1662 
 
1663 
static void
1664 
parse_event (args, event, stop)
1665 
     char *args;
1666 
     struct htrace_event_struct *event;
1667 
     int stop;
1668 
{
1669 
  int i, op_type = 0, was_last_op = 1, any = 0;
1670 
 
1671 
  /* Release previous resources.  */
1672 
  for (i = 0; i < MAX_MATCHPOINTS; i++)
1673 
    {
1674 
      if ((event->wp_trig << i) & 1)
1675 
        if (--matchpoint_user_count[i] <= 0)
1676 
          {
1677 
            memset (&dcr[i], 0, sizeof (dcr[i]));
1678 
            debug_regs_changed = 1;
1679 
            or1k_implementation.num_used_matchpoints--;
1680 
          }
1681 
    }
1682 
 
1683 
  event->is_valid = event->is_trig = 0;
1684 
  event->ls_valid = event->ls_trig = 0;
1685 
  event->bp_valid = event->bp_trig = 0;
1686 
  event->wp_valid = event->wp_trig = 0;
1687 
 
1688 
  if (args == NULL)
1689 
    args = "";
1690 
  while (*args == ' ')
1691 
    args++;
1692 
 
1693 
  while (*args != '\0')
1694 
    {
1695 
      if (strncasecmp ("breakpoint", args, 10) == 0)
1696 
        {
1697 
          if (!was_last_op)
1698 
            error ("Syntax error.");
1699 
          was_last_op = 0;
1700 
          event->bp_valid = event->bp_trig = 1;
1701 
        }
1702 
      else if (!stop && strncasecmp ("any", args, 3) == 0
1703 
               || stop && strncasecmp ("none", args, 4) == 0)
1704 
        {
1705 
          if (!was_last_op)
1706 
            error ("Syntax error.");
1707 
          was_last_op = 0;
1708 
          any = 1;
1709 
        }
1710 
      else if (strncasecmp ("||", args, 2) == 0)
1711 
        {
1712 
          if (op_type == TRIGOP_AND)
1713 
            error ("Only one type of logical operator allowed at a time.");
1714 
          op_type = TRIGOP_OR;
1715 
          if (was_last_op)
1716 
            error ("Syntax error.");
1717 
          was_last_op = 1;
1718 
          args += 2;
1719 
        }
1720 
      else if (strncasecmp ("&&", args, 2) == 0)
1721 
        {
1722 
          if (op_type == TRIGOP_OR)
1723 
            error ("Only one type of logical operator allowed at a time.");
1724 
          op_type = TRIGOP_AND;
1725 
          if (was_last_op)
1726 
            error ("Syntax error.");
1727 
          was_last_op = 1;
1728 
          args += 2;
1729 
        }
1730 
      else
1731 
        {
1732 
          int found = 0;
1733 
          if (!was_last_op)
1734 
            error ("Syntax error.");
1735 
          was_last_op = 0;
1736 
 
1737 
          /* Search through is and ls tables for a match.  */
1738 
          for (i = 0; i < MAX_IS_NAMES; i++)
1739 
            if (strncasecmp (args, or1k_is_names[i], strlen (or1k_is_names[i])) == 0)
1740 
              {
1741 
                event->is_valid = 1;
1742 
                event->is_trig = i;
1743 
                args +=  strlen (or1k_is_names[i]);
1744 
                found = 1;
1745 
                break;
1746 
              }
1747 
          if (!found)
1748 
            {
1749 
              for (i = 0; i < MAX_LS_NAMES; i++)
1750 
                if (strncasecmp (args, or1k_ls_names[i], strlen (or1k_ls_names[i])) == 0)
1751 
                  {
1752 
                    event->ls_valid = 1;
1753 
                    event->ls_trig = i;
1754 
                    args +=  strlen (or1k_ls_names[i]);
1755 
                    found = 1;
1756 
                    break;
1757 
                  }
1758 
            }
1759 
          if (!found)
1760 
            {
1761 
              /* No special name was found => parse expression.  */
1762 
              struct expression *exp;
1763 
              struct matchpoint *match;
1764 
              int nmatch, nfree;
1765 
 
1766 
              exp = parse_exp_1 (&args, 0, 0);
1767 
 
1768 
              if (or1k_parse_any (&exp->elts[0], &match, &nmatch, 3) == &exp_error)
1769 
                error ("Expression too complex.");
1770 
              for (i = 0; i < nmatch; i++)
1771 
                print_matchpoint_struct (&match[i]);
1772 
 
1773 
              /* Now we have to find out if given prefix expression matches
1774 
                 our HW based support. It may take up to
1775 
                 or1k_implementation.num_matchpoints - or1k_implementation.num_used_matchpoints. */
1776 
              nfree = or1k_implementation.num_matchpoints - or1k_implementation.num_used_matchpoints;
1777 
 
1778 
              if (nmatch > nfree)
1779 
                error ("Not enough free matchpoint resources.");
1780 
 
1781 
              /* Build matchpoint(s) based on just built structure.  */
1782 
              set_matchpoints (match, nmatch);
1783 
              event->wp_valid = 1;
1784 
              event->wp_trig |= 1 << (or1k_implementation.num_used_matchpoints - 1);
1785 
              printf_unfiltered ("Watchpoint successfully allocated.\n");
1786 
              free (match);
1787 
              free (exp);
1788 
              found = 1;
1789 
            }
1790 
          if (!found)
1791 
            warning ("Invalid event at '%s'", args);
1792 
        }
1793 
      while (*args == ' ') args++;
1794 
    }
1795 
  if (any)
1796 
    event->operation = TRIGOP_ANY;
1797 
  else
1798 
    {
1799 
      if (op_type == 0)
1800 
        op_type = TRIGOP_AND;
1801 
      event->operation = op_type;
1802 
    }
1803 
}
1804 
 
1805 
static void
1806 
htrace_trigger_command (args, from_tty)
1807 
     char *args;
1808 
     int from_tty;
1809 
{
1810 
  parse_event (args, &or1k_htrace.trig, 0);
1811 
  printf_filtered ("Trace starts, when:\n");
1812 
  print_event_struct (&or1k_htrace.trig, 0);
1813 
  printf_filtered ("\n");
1814 
}
1815 
 
1816 
static void
1817 
htrace_qualifier_command (args, from_tty)
1818 
     char *args;
1819 
     int from_tty;
1820 
{
1821 
  parse_event (args, &or1k_htrace.qual, 0);
1822 
  printf_filtered ("Trace records, when:\n");
1823 
  print_event_struct (&or1k_htrace.qual, 0);
1824 
  printf_filtered ("\n");
1825 
}
1826 
 
1827 
static void
1828 
htrace_stop_command (args, from_tty)
1829 
     char *args;
1830 
     int from_tty;
1831 
{
1832 
  parse_event (args, &or1k_htrace.stop, 1);
1833 
  printf_filtered ("Trace stops, when:\n");
1834 
  print_event_struct (&or1k_htrace.stop, 1);
1835 
  printf_filtered ("\n");
1836 
}
1837 
 
1838 
static void
1839 
htrace_clear_records_command (args, from_tty)
1840 
     char *args;
1841 
     int from_tty;
1842 
{
1843 
  int i, j, cleared = 0;
1844 
 
1845 
  /* Clear all. */
1846 
  for (i = 0; i < MAX_MATCHPOINTS; i++)
1847 
    {
1848 
      for (j = 0; j < MAX_MATCHPOINTS; j++)
1849 
        {
1850 
          if ((or1k_htrace.wp_record_uses[i] << j) & 1)
1851 
            if (--matchpoint_user_count[j] <= 0)
1852 
            {
1853 
              memset (&dcr[j], 0, sizeof (dcr[j]));
1854 
              debug_regs_changed = 1;
1855 
              cleared = 1;
1856 
              or1k_implementation.num_used_matchpoints--;
1857 
            }
1858 
        }
1859 
      or1k_htrace.wp_record_uses[i] = 0;
1860 
    }
1861 
  if (!cleared)
1862 
    warning ("No matchpoints freed. Resources are busy.");
1863 
}
1864 
 
1865 
/* Syntax: htrace record {data}* when {expr} */
1866 
 
1867 
static void
1868 
htrace_record_command (args, from_tty)
1869 
     char *args;
1870 
     int from_tty;
1871 
{
1872 
  struct expression *exp;
1873 
  int i, nfree, nmatch, wp;
1874 
  struct matchpoint *match;
1875 
  unsigned int recdata = 0;
1876 
  char *c;
1877 
 
1878 
  if (args == '\0')
1879 
    error ( "Please specify data to record, e.g.:\n"
1880 
            "htrace record PC WRITESPR SDATA when $SEA == 100\n"
1881 
            "htrace record when $SEA == 100 to remove record");
1882 
 
1883 
  for (i = 0; *args != '\0' && strncasecmp ("when ", args, 5); i++)
1884 
    {
1885 
      int j, found = 0;
1886 
      for (j = 0; j < MAX_RECORD_NAMES; j++)
1887 
        if (strncasecmp (args, or1k_record_names[j], strlen (or1k_record_names[j])) == 0)
1888 
          {
1889 
            recdata |= 1 << j;
1890 
            found = 1;
1891 
            break;
1892 
          }
1893 
      if (!found)
1894 
        warning ("Invalid record data name at '%s'.", args);
1895 
      while (*args != ' ' && *args != '\0') args++;
1896 
      while (*args == ' ') args++;
1897 
    }
1898 
 
1899 
  if (strncasecmp ("when ", args, 5) != 0)
1900 
    if (*args == '\0')
1901 
      {
1902 
        warning ("Condition not set. Assuming breakpoint.");
1903 
        wp = -1;
1904 
      }
1905 
    else
1906 
      error ("Syntax error.");
1907 
  else
1908 
    {
1909 
      args += 5;
1910 
      if (strcasecmp ("breakpoint", args) == 0)
1911 
        wp = -1;
1912 
      else
1913 
        {
1914 
          /* Parse arguments.  */
1915 
          exp = parse_exp_1 (&args, 0, 0);
1916 
 
1917 
#ifdef DEBUG
1918 
          dump_prefix_expression (exp, gdb_stdout, "expr1");
1919 
#endif
1920 
          if (or1k_parse_any (&exp->elts[0], &match, &nmatch, 3) == &exp_error)
1921 
            error ("Expression too complex.");
1922 
 
1923 
          for (i = 0; i < nmatch; i++)
1924 
            print_matchpoint_struct (&match[i]);
1925 
 
1926 
          if (recdata)
1927 
            {
1928 
              /* Now we have to find out if given prefix expression matches
1929 
                 our HW based support. It may take up to
1930 
                 or1k_implementation.num_matchpoints - or1k_implementation.num_used_matchpoints. */
1931 
              nfree = or1k_implementation.num_matchpoints - or1k_implementation.num_used_matchpoints;
1932 
 
1933 
              if (nmatch > nfree)
1934 
                error ("Not enough free matchpoint resources.");
1935 
 
1936 
              wp = or1k_implementation.num_used_matchpoints - 1;
1937 
              or1k_htrace.wp_record_uses[wp] = 0;
1938 
              for (i = or1k_implementation.num_used_matchpoints; i <= wp; i++)
1939 
                or1k_htrace.wp_record_uses[wp] |= 1 << i;
1940 
              set_matchpoints (match, nmatch);
1941 
            }
1942 
          else
1943 
            {
1944 
              /* Remove record. */
1945 
              int start = -1, cleared = 0;
1946 
 
1947 
              for (i = 0; i < MAX_MATCHPOINTS; i++)
1948 
                {
1949 
                  int mp_start = 0, j;
1950 
                  j = or1k_htrace.wp_record_uses[i];
1951 
                  while (j > 0 && j & 1 == 0)
1952 
                    mp_start++;
1953 
 
1954 
                  if (matchpoint_matches (mp_start, match, nmatch))
1955 
                    {
1956 
                      start = mp_start;
1957 
                      or1k_htrace.wp_record_uses[i] = 0;
1958 
                      break;
1959 
                    }
1960 
                }
1961 
              if (start < 0)
1962 
                error ("Record with such expression not found.");
1963 
 
1964 
              for (i = 0; i < nmatch; i++)
1965 
                {
1966 
                  int j = i + start;
1967 
                  if (--matchpoint_user_count[j] <= 0)
1968 
                    {
1969 
                      memset (&dcr[j], 0, sizeof (dcr[j]));
1970 
                      debug_regs_changed = 1;
1971 
                      cleared = 1;
1972 
                    }
1973 
                }
1974 
              if (!cleared)
1975 
                warning ("No matchpoint(s) freed.");
1976 
            }
1977 
        }
1978 
    }
1979 
 
1980 
  /* If we reached this point we have matchpoints set, and wp
1981 
     holds the value of that watchpoint.  wp == -1, if breakpoint
1982 
     was specified.  */
1983 
  if (wp < 0)
1984 
    or1k_htrace.recbp.rec = recdata;
1985 
  else
1986 
    or1k_htrace.recwp[wp].rec = recdata;
1987 
 
1988 
  if (recdata)
1989 
    {
1990 
      printf_unfiltered ("Data");
1991 
      for (i = 0; i < MAX_RECORD_NAMES; i++)
1992 
        if ((recdata >> i) & 1)
1993 
          printf_unfiltered (" %s,", or1k_record_names[i]);
1994 
    }
1995 
  else
1996 
    printf_unfiltered ("No data");
1997 
  if (wp < 0)
1998 
    printf_unfiltered (" will be recorded when breakpoint occurs\n");
1999 
  else
2000 
    printf_unfiltered (" will be recorded when watchpoint #%i occurs\n", wp);
2001 
}
2002 
 
2003 
static void
2004 
htrace_enable_command (args, from_tty)
2005 
     char *args;
2006 
     int from_tty;
2007 
{
2008 
  or1k_htrace.moder.trace_enable = 1;
2009 
  printf_unfiltered ("HW Trace enabled.\n");
2010 
}
2011 
 
2012 
static void
2013 
htrace_disable_command (args, from_tty)
2014 
     char *args;
2015 
     int from_tty;
2016 
{
2017 
  or1k_htrace.moder.trace_enable = 0;
2018 
  printf_unfiltered ("HW Trace disabled.\n");
2019 
}
2020 
 
2021 
static void
2022 
htrace_rewind_command (args, from_tty)
2023 
     char *args;
2024 
     int from_tty;
2025 
{
2026 
  FILE *f;
2027 
  if (args != NULL && *args != '\0')
2028 
    strncpy (TRACE_FILENAME, args, TRACE_FILENAME_SIZE);
2029 
 
2030 
  /* Just empty it.  */
2031 
  if ((f = fopen (TRACE_FILENAME, "wb+")) == NULL)
2032 
    error ("Cannot open trace file.");
2033 
  fclose (f);
2034 
  printf_unfiltered ("Trace data cleared.\n");
2035 
}
2036 
 
2037 
static void
2038 
print_data_struct (pos, data)
2039 
     unsigned int pos;
2040 
     struct htrace_data_struct *data;
2041 
{
2042 
  struct symbol *func;
2043 
  char *funname = NULL;
2044 
 
2045 
  if (data->type < 4)
2046 
    {
2047 
      /* Determine function name - copied from stack.c  */
2048 
      func = find_pc_function (data->data);
2049 
      if (func)
2050 
        {
2051 
          struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (data->data);
2052 
          if (msymbol != NULL
2053 
              && (SYMBOL_VALUE_ADDRESS (msymbol)
2054 
                  > BLOCK_START (SYMBOL_BLOCK_VALUE (func))))
2055 
            funname = SYMBOL_NAME (msymbol);
2056 
          else
2057 
            {
2058 
              char *demangled;
2059 
              funname = SYMBOL_NAME (func);
2060 
              if (SYMBOL_LANGUAGE (func) == language_cplus)
2061 
                {
2062 
                  demangled = cplus_demangle (funname, DMGL_ANSI);
2063 
                  if (demangled == NULL)
2064 
                    funname = SYMBOL_SOURCE_NAME (func);
2065 
                }
2066 
            }
2067 
        }
2068 
      else
2069 
        {
2070 
          struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (data->data);
2071 
          if (msymbol != NULL)
2072 
            funname = SYMBOL_NAME (msymbol);
2073 
        }
2074 
    }
2075 
 
2076 
  printf_filtered ("%06X%c %-8s %08X", pos, data->valid ? '>' : ':',
2077 
                   or1k_record_names[data->type], data->data);
2078 
  if (funname)
2079 
    printf_filtered (" (%s)\n", funname);
2080 
  else
2081 
    printf_filtered ("\n");
2082 
}
2083 
 
2084 
/* Prints out trace buffer.  */
2085 
 
2086 
static void
2087 
htrace_print_command (args, from_tty)
2088 
     char *args;
2089 
     int from_tty;
2090 
{
2091 
  int i, from = 0, length = prev_length;
2092 
  FILE *f;
2093 
  struct htrace_data_struct *td;
2094 
 
2095 
  if (args == NULL) args = "";
2096 
  while (*args == ' ') args++;
2097 
  if (*args == '\0')
2098 
    {
2099 
      /* We will display buffer further. */
2100 
      from = prev_from + prev_length;
2101 
    }
2102 
  else
2103 
    {
2104 
      /* Display buffer range.  */
2105 
      int numbers = 0;
2106 
      char *cnum = args;
2107 
      while (*args != ' ' && *args != '\0')
2108 
        args++;
2109 
 
2110 
      /* Any arguments?  */
2111 
      if (*args == '\0')
2112 
        numbers = 1;
2113 
      else
2114 
        {
2115 
          *args = 0;
2116 
          args++;
2117 
          numbers = 2;
2118 
        }
2119 
      from = strtoul (cnum, &cnum, 0);
2120 
      if (*cnum != 0)
2121 
        error ("Invalid from value.");
2122 
      if (from < 0) from += trace_size;
2123 
      if (numbers == 2)
2124 
        {
2125 
          while (*args == ' ') args++;
2126 
          length = strtoul (cnum, &cnum, 0);
2127 
          if (*args != 0)
2128 
            error ("Invalid length value.");
2129 
          if (length < 0)
2130 
            {
2131 
              from += length;
2132 
              length = -length;
2133 
            }
2134 
        }
2135 
    }
2136 
 
2137 
  if (from >= trace_size)
2138 
    from = trace_size - 1;
2139 
  if (from < 0)
2140 
    from = 0;
2141 
  if (from + length >= trace_size)
2142 
    length = trace_size - from;
2143 
 
2144 
  prev_length = length;
2145 
  prev_from = from;
2146 
  if (length == 0)
2147 
    error ("Nothing to print.");
2148 
 
2149 
  printf_filtered ("Trace buffer %06x:%06x (size = %i)\n", from, from + length - 1, length);
2150 
  if ((f = fopen (TRACE_FILENAME, "rb")) == NULL)
2151 
    error ("Cannot open trace file.");
2152 
  if (fseek (f, TRACE_DATA_SIZE * from, SEEK_SET))
2153 
    error ("Error reading trace file.");
2154 
  td = (struct htrace_data_struct *) malloc (TRACE_DATA_SIZE * length);
2155 
  length = fread (td, TRACE_DATA_SIZE, length, f);
2156 
  for (i = 0; i < length; i++)
2157 
    print_data_struct (from + i, td[i]);
2158 
  fclose (f);
2159 
}
2160 
 
2161 104 markom 
void
2162 
_initialize_or1k_tdep ()
2163 
{
2164 118 markom 
  /* Commands to show and set sprs.  */
2165 
  add_info ("spr", info_spr_command, "Show information about the spr registers.");
2166 
  add_com ("spr", class_support, spr_command, "Set specified SPR register.");
2167 104 markom 
 
2168 118 markom 
  /* hwatch command.  */
2169 
  add_com ("hwatch", class_breakpoint, hwatch_command, "Set hardware watchpoint.\n\
2170 
Example: ($LEA == my_var)&&($LDATA < 50)||($SEA == my_var)&&($SDATA >= 50).\n\
2171 
See OR1k Architecture document for more info.");
2172 104 markom 
 
2173 118 markom 
  /* htrace commands.  */
2174 
  add_prefix_cmd ("htrace", class_breakpoint, htrace_command,
2175 
                  "Set hardware trace.\nExamples:\n"
2176 
                  "  htrace info\n"
2177 
                  "  htrace trigger <expr>\n"
2178 
                  "  htrace qualifier <expr>\n"
2179 
                  "  htrace stop <expr>\n"
2180 
                  "  htrace record <data> when [<expr>|breakpoint]\n"
2181 
                  "  htrace clear recors\n"
2182 
                  "  htrace enable\n"
2183 
                  "  htrace disable\n"
2184 
                  "  htrace control\n\n"
2185 
                  "See OR1k Architecture and gdb for or1k documents for more info.",
2186 
                  &htrace_cmdlist, "htrace ", 0, &cmdlist);
2187 
  add_cmd ("info", class_breakpoint, htrace_info_command, "Display information about HW trace.",
2188 
           &htrace_cmdlist);
2189 
  add_alias_cmd ("i", "info", class_breakpoint, 1, &htrace_cmdlist);
2190 
  add_cmd ("trigger", class_breakpoint, htrace_trigger_command, "Set starting criteria for trace.",
2191 
           &htrace_cmdlist);
2192 
  add_alias_cmd ("t", "trigger", class_breakpoint, 1, &htrace_cmdlist);
2193 
  add_cmd ("qualifier", class_breakpoint, htrace_qualifier_command, "Set acquisition qualifier for HW trace.",
2194 
           &htrace_cmdlist);
2195 
  add_alias_cmd ("q", "qualifier", class_breakpoint, 1, &htrace_cmdlist);
2196 
  add_cmd ("stop", class_breakpoint, htrace_stop_command, "Set HW trace stopping criteria.",
2197 
           &htrace_cmdlist);
2198 
  add_alias_cmd ("s", "stop", class_breakpoint, 1, &htrace_cmdlist);
2199 
  add_cmd ("record", class_breakpoint, htrace_record_command, "Sets data to be recorded when expression occurs.",
2200 
           &htrace_cmdlist);
2201 
  add_alias_cmd ("r", "record", class_breakpoint, 1, &htrace_cmdlist);
2202 
  add_cmd ("clear records", class_breakpoint, htrace_clear_records_command,
2203 
           "Disposes all matchpoints used by records.", &htrace_cmdlist);
2204 
  add_cmd ("enable", class_breakpoint, htrace_enable_command, "Enables the HW trace.", &htrace_cmdlist);
2205 
  add_alias_cmd ("e", "enable", class_breakpoint, 1, &htrace_cmdlist);
2206 
  add_cmd ("disable", class_breakpoint, htrace_disable_command, "Disables the HW trace.", &htrace_cmdlist);
2207 
  add_alias_cmd ("d", "disable", class_breakpoint, 1, &htrace_cmdlist);
2208 
  add_cmd ("rewind", class_breakpoint, htrace_rewind_command, "Clears currently recorded trace data.\n"
2209 
           "If filename is specified, new trace file is made and any newly collected data\n"
2210 
           "will be written there.", &htrace_cmdlist);
2211 
  add_cmd ("print", class_breakpoint, htrace_print_command,
2212 
           "Prints trace buffer, using current record configuration.\n"
2213 
           "htrace print [<start> [<len>]]\n"
2214 
           "htrace print"
2215 
           , &htrace_cmdlist);
2216 
  add_alias_cmd ("p", "print", class_breakpoint, 1, &htrace_cmdlist);
2217 
  add_prefix_cmd ("mode", class_breakpoint, htrace_mode_command,
2218 
           "Configures the HW trace.\n"
2219 
           "htrace mode [continuous|suspend]"
2220 
           , &htrace_mode_cmdlist, "htrace mode ", 0, &htrace_cmdlist);
2221 
  add_alias_cmd ("m", "mode", class_breakpoint, 1, &htrace_cmdlist);
2222 
  add_cmd ("continuous", class_breakpoint, htrace_mode_contin_command,
2223 
           "Set continuous trace mode.\n", &htrace_mode_cmdlist);
2224 
  add_cmd ("suspend", class_breakpoint, htrace_mode_suspend_command,
2225 
           "Set suspend trace mode.\n", &htrace_mode_cmdlist);
2226 
 
2227 
  /* Extra functions supported by simulator.  */
2228 104 markom 
  add_com ("sim", class_obscure, sim_command,
2229 
           "Send a extended command to the simulator.");
2230 
}

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