1 /* Convex stuff for GDB.
2 Copyright (C) 1990, 1991, 1996 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
32 #include <sys/param.h>
35 #include <sys/ioctl.h>
36 #include <sys/pcntl.h>
37 #include <sys/thread.h>
45 exec_file_command (filename
, from_tty
)
53 /* Eliminate all traces of old exec file.
54 Mark text segment as empty. */
71 /* Now open and digest the file the user requested, if any. */
75 filename
= tilde_expand (filename
);
76 make_cleanup (free
, filename
);
78 execchan
= openp (getenv ("PATH"), 1, filename
, O_RDONLY
, 0,
81 perror_with_name (filename
);
83 if (myread (execchan
, &filehdr
, sizeof filehdr
) < 0)
84 perror_with_name (filename
);
86 if (! IS_SOFF_MAGIC (filehdr
.h_magic
))
87 error ("%s: not an executable file.", filename
);
89 if (myread (execchan
, &opthdr
, filehdr
.h_opthdr
) <= 0)
90 perror_with_name (filename
);
92 /* Read through the section headers.
93 For text, data, etc, record an entry in the exec file map.
94 Record text_start and text_end. */
96 lseek (execchan
, (long) filehdr
.h_scnptr
, 0);
98 for (n
= 0; n
< filehdr
.h_nscns
; n
++)
100 if (myread (execchan
, &scnhdr
, sizeof scnhdr
) < 0)
101 perror_with_name (filename
);
103 if ((scnhdr
.s_flags
& S_TYPMASK
) >= S_TEXT
104 && (scnhdr
.s_flags
& S_TYPMASK
) <= S_COMON
)
106 exec_map
[n_exec
].mem_addr
= scnhdr
.s_vaddr
;
107 exec_map
[n_exec
].mem_end
= scnhdr
.s_vaddr
+ scnhdr
.s_size
;
108 exec_map
[n_exec
].file_addr
= scnhdr
.s_scnptr
;
109 exec_map
[n_exec
].type
= scnhdr
.s_flags
& S_TYPMASK
;
112 if ((scnhdr
.s_flags
& S_TYPMASK
) == S_TEXT
)
114 text_start
= scnhdr
.s_vaddr
;
115 text_end
= scnhdr
.s_vaddr
+ scnhdr
.s_size
;
120 fstat (execchan
, &st_exec
);
121 exec_mtime
= st_exec
.st_mtime
;
126 printf_filtered ("No exec file now.\n");
128 /* Tell display code (if any) about the changed file name. */
129 if (exec_file_display_hook
)
130 (*exec_file_display_hook
) (filename
);
134 /* Read data from SOFF exec or core file.
135 Return 0 on success, EIO if address out of bounds. */
138 xfer_core_file (memaddr
, myaddr
, len
)
156 /* Determine which file the next bunch of addresses reside in,
157 and where in the file. Set the file's read/write pointer
158 to point at the proper place for the desired address
159 and set xferfile and xferchan for the correct file.
160 If desired address is nonexistent, leave them zero.
161 i is set to the number of bytes that can be handled
162 along with the next address. */
166 for (n
= 0; n
< n_core
; n
++)
168 if (memaddr
>= core_map
[n
].mem_addr
&& memaddr
< core_map
[n
].mem_end
169 && (core_map
[n
].thread
== -1
170 || core_map
[n
].thread
== inferior_thread
))
172 i
= min (len
, core_map
[n
].mem_end
- memaddr
);
173 fileptr
= core_map
[n
].file_addr
+ memaddr
- core_map
[n
].mem_addr
;
174 if (core_map
[n
].file_addr
)
176 xferfile
= &corefile
;
181 else if (core_map
[n
].mem_addr
>= memaddr
182 && core_map
[n
].mem_addr
< memaddr
+ i
)
183 i
= core_map
[n
].mem_addr
- memaddr
;
187 for (n
= 0; n
< n_exec
; n
++)
189 if (memaddr
>= exec_map
[n
].mem_addr
190 && memaddr
< exec_map
[n
].mem_end
)
192 i
= min (len
, exec_map
[n
].mem_end
- memaddr
);
193 fileptr
= exec_map
[n
].file_addr
+ memaddr
194 - exec_map
[n
].mem_addr
;
195 if (exec_map
[n
].file_addr
)
197 xferfile
= &execfile
;
202 else if (exec_map
[n
].mem_addr
>= memaddr
203 && exec_map
[n
].mem_addr
< memaddr
+ i
)
204 i
= exec_map
[n
].mem_addr
- memaddr
;
207 /* Now we know which file to use.
208 Set up its pointer and transfer the data. */
212 if (xferfile
== &execfile
)
213 error ("No program file to examine.");
215 error ("No core dump file or running program to examine.");
216 val
= lseek (xferchan
, fileptr
, 0);
218 perror_with_name (*xferfile
);
219 val
= myread (xferchan
, myaddr
, i
);
221 perror_with_name (*xferfile
);
223 /* If this address is for nonexistent memory,
224 read zeros if reading, or do nothing if writing. */
227 memset (myaddr
, '\0', i
);
239 /* Here from info files command to print an address map. */
243 struct pmap ptrs
[200];
246 /* ID strings for core and executable file sections */
248 static char *idstr
[] =
250 "0", "text", "data", "tdata", "bss", "tbss",
251 "common", "ttext", "ctx", "tctx", "10", "11", "12",
254 for (n
= 0; n
< n_core
; n
++)
256 core_map
[n
].which
= 0;
257 ptrs
[n
] = core_map
[n
];
259 for (n
= 0; n
< n_exec
; n
++)
261 exec_map
[n
].which
= 1;
262 ptrs
[n_core
+n
] = exec_map
[n
];
265 qsort (ptrs
, n_core
+ n_exec
, sizeof *ptrs
, ptr_cmp
);
267 for (n
= 0; n
< n_core
+ n_exec
; n
++)
269 struct pmap
*p
= &ptrs
[n
];
272 if (p
->mem_addr
< ptrs
[n
-1].mem_end
)
273 p
->mem_addr
= ptrs
[n
-1].mem_end
;
274 if (p
->mem_addr
>= p
->mem_end
)
277 printf_filtered ("%08x .. %08x %-6s %s\n",
278 p
->mem_addr
, p
->mem_end
, idstr
[p
->type
],
279 p
->which
? execfile
: corefile
);
283 /* Compare routine to put file sections in order.
284 Sort into increasing order on address, and put core file sections
285 before exec file sections if both files contain the same addresses. */
287 static ptr_cmp (a
, b
)
290 if (a
->mem_addr
!= b
->mem_addr
) return a
->mem_addr
- b
->mem_addr
;
291 return a
->which
- b
->which
;
294 /* Trapped internal variables are used to handle special registers.
295 A trapped i.v. calls a hook here every time it is dereferenced,
296 to provide a new value for the variable, and it calls a hook here
297 when a new value is assigned, to do something with the value.
299 The vector registers are $vl, $vs, $vm, $vN, $VN (N in 0..7).
300 The communication registers are $cN, $CN (N in 0..63).
301 They not handled as regular registers because it's expensive to
302 read them, and their size varies, and they have too many names. */
305 /* Return 1 if NAME is a trapped internal variable, else 0. */
308 is_trapped_internalvar (name
)
311 if ((name
[0] == 'c' || name
[0] == 'C')
312 && name
[1] >= '0' && name
[1] <= '9'
314 || (name
[2] >= '0' && name
[2] <= '9'
315 && name
[3] == '\0' && name
[1] != '0'))
316 && atoi (&name
[1]) < 64) return 1;
318 if ((name
[0] == 'v' || name
[0] == 'V')
319 && (((name
[1] & -8) == '0' && name
[2] == '\0')
320 || STREQ (name
, "vl")
321 || STREQ (name
, "vs")
322 || STREQ (name
, "vm")))
327 /* Return the value of trapped internal variable VAR */
330 value_of_trapped_internalvar (var
)
331 struct internalvar
*var
;
333 char *name
= var
->name
;
336 struct type
*range_type
;
337 long len
= *read_vector_register (VL_REGNUM
);
338 if (len
<= 0 || len
> 128) len
= 128;
340 if (STREQ (name
, "vl"))
342 val
= value_from_longest (builtin_type_int
,
343 (LONGEST
) *read_vector_register_1 (VL_REGNUM
));
345 else if (STREQ (name
, "vs"))
347 val
= value_from_longest (builtin_type_int
,
348 (LONGEST
) *read_vector_register_1 (VS_REGNUM
));
350 else if (STREQ (name
, "vm"))
354 memcpy (vm
, read_vector_register_1 (VM_REGNUM
), sizeof vm
);
356 create_range_type ((struct type
*) NULL
, builtin_type_int
, 0, len
- 1);
358 create_array_type ((struct type
*) NULL
, builtin_type_int
, range_type
);
359 val
= allocate_value (type
);
360 p
= (long *) VALUE_CONTENTS (val
);
361 for (i
= 0; i
< len
; i
++)
362 *p
++ = !! (vm
[3 - (i
>> 5)] & (1 << (i
& 037)));
364 else if (name
[0] == 'V')
367 create_range_type ((struct type
*) NULL
, builtin_type_int
0, len
- 1);
369 create_array_type ((struct type
*) NULL
, builtin_type_long_long
,
371 val
= allocate_value (type
);
372 memcpy (VALUE_CONTENTS (val
),
373 read_vector_register_1 (name
[1] - '0'),
376 else if (name
[0] == 'v')
380 create_range_type ((struct type
*) NULL
, builtin_type_int
0, len
- 1);
382 create_array_type ((struct type
*) NULL
, builtin_type_long
,
384 val
= allocate_value (type
);
385 p1
= read_vector_register_1 (name
[1] - '0');
386 p2
= (long *) VALUE_CONTENTS (val
);
387 while (--len
>= 0) {p1
++; *p2
++ = *p1
++;}
390 else if (name
[0] == 'c')
391 val
= value_from_longest (builtin_type_int
,
392 read_comm_register (atoi (&name
[1])));
393 else if (name
[0] == 'C')
394 val
= value_from_longest (builtin_type_long_long
,
395 read_comm_register (atoi (&name
[1])));
397 VALUE_LVAL (val
) = lval_internalvar
;
398 VALUE_INTERNALVAR (val
) = var
;
402 /* Handle a new value assigned to a trapped internal variable */
405 set_trapped_internalvar (var
, val
, bitpos
, bitsize
, offset
)
406 struct internalvar
*var
;
408 int bitpos
, bitsize
, offset
;
410 char *name
= var
->name
;
411 long long newval
= value_as_long (val
);
413 if (STREQ (name
, "vl"))
414 write_vector_register (VL_REGNUM
, 0, newval
);
415 else if (STREQ (name
, "vs"))
416 write_vector_register (VS_REGNUM
, 0, newval
);
417 else if (name
[0] == 'c' || name
[0] == 'C')
418 write_comm_register (atoi (&name
[1]), newval
);
419 else if (STREQ (name
, "vm"))
420 error ("can't assign to $vm");
423 offset
/= bitsize
/ 8;
424 write_vector_register (name
[1] - '0', offset
, newval
);
428 /* Print an integer value when no format was specified. gdb normally
429 prints these values in decimal, but the the leading 0x80000000 of
430 pointers produces intolerable 10-digit negative numbers.
431 If it looks like an address, print it in hex instead. */
433 decout (stream
, type
, val
)
440 switch (output_radix
)
443 if ((lv
== val
|| (unsigned) lv
== val
)
444 && ((lv
& 0xf0000000) == 0x80000000
445 || ((lv
& 0xf0000000) == 0xf0000000 && lv
< STACK_END_ADDR
)))
447 print_longest (stream
, "x", 0, val
);
452 print_longest (stream
, TYPE_UNSIGNED (type
) ? "u" : "d", 0, val
);
456 print_longest (stream
, "o", 0, val
);
460 print_longest (stream
, "x", 0, val
);
465 /* Change the default output radix to 10 or 16, or set it to 0 (heuristic).
466 This command is mostly obsolete now that the print command allows
467 formats to apply to aggregates, but is still handy occasionally. */
470 set_base_command (arg
)
479 new_radix
= atoi (arg
);
480 if (new_radix
!= 10 && new_radix
!= 16 && new_radix
!= 8)
481 error ("base must be 8, 10 or 16, or null");
482 else output_radix
= new_radix
;
486 /* Turn pipelining on or off in the inferior. */
489 set_pipelining_command (arg
)
494 sequential
= !sequential
;
495 printf_filtered ("%s\n", sequential
? "off" : "on");
497 else if (STREQ (arg
, "on"))
499 else if (STREQ (arg
, "off"))
501 else error ("valid args are `on', to allow instructions to overlap, or\n\
502 `off', to prevent it and thereby pinpoint exceptions.");
505 /* Enable, disable, or force parallel execution in the inferior. */
508 set_parallel_command (arg
)
512 int prevparallel
= parallel
;
514 if (!strncmp (arg
, "fixed", strlen (arg
)))
516 else if (STREQ (arg
, "on"))
518 else if (STREQ (arg
, "off"))
520 else error ("valid args are `on', to allow multiple threads, or\n\
521 `fixed', to force multiple threads, or\n\
522 `off', to run with one thread only.");
524 if ((prevparallel
== 0) != (parallel
== 0) && inferior_pid
)
525 printf_filtered ("will take effect at next run.\n");
527 getrlimit (RLIMIT_CONCUR
, &rl
);
528 rl
.rlim_cur
= parallel
? rl
.rlim_max
: 1;
529 setrlimit (RLIMIT_CONCUR
, &rl
);
532 set_fixed_scheduling (inferior_pid
, parallel
== 2);
535 /* Add a new name for an existing command. */
541 static char *aliaserr
= "usage is `alias NEW OLD', no args allowed";
543 struct cmd_list_element
*new, *old
;
546 error_no_arg ("newname oldname");
548 new = lookup_cmd (&arg
, cmdlist
, "", -1);
549 if (new && !strncmp (newname
, new->name
, strlen (new->name
)))
553 || (*arg
>= 'a' && *arg
<= 'z')
554 || (*arg
>= 'A' && *arg
<= 'Z')
555 || (*arg
>= '0' && *arg
<= '9')))
562 || (*arg
>= 'a' && *arg
<= 'z')
563 || (*arg
>= 'A' && *arg
<= 'Z')
564 || (*arg
>= '0' && *arg
<= '9'))
566 if (*arg
!= ' ' && *arg
!= '\t')
572 old
= lookup_cmd (&arg
, cmdlist
, "", 0);
577 if (new && !strncmp (newname
, new->name
, strlen (new->name
)))
580 if (new->class == (int) class_user
|| new->class == (int) class_alias
)
581 tem
= "Redefine command \"%s\"? ";
583 tem
= "Really redefine built-in command \"%s\"? ";
584 if (!query (tem
, new->name
))
585 error ("Command \"%s\" not redefined.", new->name
);
588 add_com (newname
, class_alias
, old
->function
, old
->doc
);
593 /* Print the current thread number, and any threads with signals in the
600 if (have_inferior_p ())
602 ps
.pi_buffer
= (char *) &comm_registers
;
603 ps
.pi_nbytes
= sizeof comm_registers
;
605 ps
.pi_thread
= inferior_thread
;
606 ioctl (inferior_fd
, PIXRDCREGS
, &ps
);
609 /* FIXME: stop_signal is from target.h but stop_sigcode is a
610 convex-specific thing. */
611 printf_filtered ("Current thread %d stopped with signal %d.%d (%s).\n",
612 inferior_thread
, stop_signal
, stop_sigcode
,
613 subsig_name (stop_signal
, stop_sigcode
));
615 for (p
= signal_stack
; p
->pid
; p
--)
616 printf_filtered ("Thread %d stopped with signal %d.%d (%s).\n",
617 p
->thread
, p
->signo
, p
->subsig
,
618 subsig_name (p
->signo
, p
->subsig
));
620 if (iscrlbit (comm_registers
.crctl
.lbits
.cc
, 64+13))
621 printf_filtered ("New thread start pc %#x\n",
622 (long) (comm_registers
.crreg
.pcpsw
>> 32));
625 /* Return string describing a signal.subcode number */
628 subsig_name (signo
, subcode
)
631 static char *subsig4
[] = {
632 "error exit", "privileged instruction", "unknown",
633 "unknown", "undefined opcode",
635 static char *subsig5
[] = {0,
636 "breakpoint", "single step", "fork trap", "exec trap", "pfork trap",
637 "join trap", "idle trap", "last thread", "wfork trap",
638 "process breakpoint", "trap instruction",
640 static char *subsig8
[] = {0,
641 "int overflow", "int divide check", "float overflow",
642 "float divide check", "float underflow", "reserved operand",
643 "sqrt error", "exp error", "ln error", "sin error", "cos error",
645 static char *subsig10
[] = {0,
646 "invalid inward ring address", "invalid outward ring call",
647 "invalid inward ring return", "invalid syscall gate",
648 "invalid rtn frame length", "invalid comm reg address",
651 static char *subsig11
[] = {0,
652 "read access denied", "write access denied", "execute access denied",
653 "segment descriptor fault", "page table fault", "data reference fault",
654 "i/o access denied", "levt pte invalid",
657 static char **subsig_list
[] =
658 {0, 0, 0, 0, subsig4
, subsig5
, 0, 0, subsig8
, 0, subsig10
, subsig11
, 0};
663 if ((p
= strsignal (signo
)) == NULL
)
665 if (signo
>= (sizeof subsig_list
/ sizeof *subsig_list
)
666 || !subsig_list
[signo
])
668 for (i
= 1; subsig_list
[signo
][i
]; i
++)
670 return subsig_list
[signo
][subcode
];
675 /* Print a compact display of thread status, essentially x/i $pc
676 for all active threads. */
683 for (t
= 0; t
< n_threads
; t
++)
684 if (thread_state
[t
] == PI_TALIVE
)
686 printf_filtered ("%d%c %08x%c %d.%d ", t
,
687 (t
== inferior_thread
? '*' : ' '), thread_pc
[t
],
688 (thread_is_in_kernel
[t
] ? '#' : ' '),
689 thread_signal
[t
], thread_sigcode
[t
]);
690 print_insn (thread_pc
[t
], stdout
);
691 printf_filtered ("\n");
695 /* Change the current thread to ARG. */
697 set_thread_command (arg
)
708 thread
= parse_and_eval_address (arg
);
710 if (thread
< 0 || thread
> n_threads
|| thread_state
[thread
] != PI_TALIVE
)
711 error ("no such thread.");
713 select_thread (thread
);
715 stop_pc
= read_pc ();
716 flush_cached_frames ();
717 select_frame (get_current_frame (), 0);
718 print_stack_frame (selected_frame
, selected_frame_level
, -1);
721 /* Here on CONT command; gdb's dispatch address is changed to come here.
722 Set global variable ALL_CONTINUE to tell resume() that it should
723 start up all threads, and that a thread switch will not blow gdb's
727 convex_cont_command (proc_count_exp
, from_tty
)
728 char *proc_count_exp
;
732 cont_command (proc_count_exp
, from_tty
);
735 /* Here on 1CONT command. Resume only the current thread. */
737 one_cont_command (proc_count_exp
, from_tty
)
738 char *proc_count_exp
;
741 cont_command (proc_count_exp
, from_tty
);
744 /* Print the contents and lock bits of all communication registers,
745 or just register ARG if ARG is a communication register,
746 or the 3-word resource structure in memory at address ARG. */
748 comm_registers_info (arg
)
755 if (sscanf (arg
, "$c%d", ®num
) == 1) {
757 } else if (sscanf (arg
, "$C%d", ®num
) == 1) {
760 regnum
= parse_and_eval_address (arg
);
766 error ("%s: invalid register name.", arg
);
768 /* if we got a (user) address, examine the resource struct there */
773 read_memory (regnum
, buf
, sizeof buf
);
774 printf_filtered ("%08x %08x%08x%s\n", regnum
, buf
[1], buf
[2],
775 buf
[0] & 0xff ? " locked" : "");
780 ps
.pi_buffer
= (char *) &comm_registers
;
781 ps
.pi_nbytes
= sizeof comm_registers
;
783 ps
.pi_thread
= inferior_thread
;
784 ioctl (inferior_fd
, PIXRDCREGS
, &ps
);
786 for (i
= 0; i
< 64; i
++)
787 if (!arg
|| i
== regnum
)
788 printf_filtered ("%2d 0x8%03x %016llx%s\n", i
, i
,
789 comm_registers
.crreg
.r4
[i
],
790 (iscrlbit (comm_registers
.crctl
.lbits
.cc
, i
)
807 static struct pswbit pswbit
[] =
809 { 0x80000000, -1, "A carry" },
810 { 0x40000000, -1, "A integer overflow" },
811 { 0x20000000, -1, "A zero divide" },
812 { 0x10000000, -1, "Integer overflow enable" },
813 { 0x08000000, -1, "Trace" },
814 { 0x06000000, 25, "Frame length" },
815 { 0x01000000, -1, "Sequential" },
816 { 0x00800000, -1, "S carry" },
817 { 0x00400000, -1, "S integer overflow" },
818 { 0x00200000, -1, "S zero divide" },
819 { 0x00100000, -1, "Zero divide enable" },
820 { 0x00080000, -1, "Floating underflow" },
821 { 0x00040000, -1, "Floating overflow" },
822 { 0x00020000, -1, "Floating reserved operand" },
823 { 0x00010000, -1, "Floating zero divide" },
824 { 0x00008000, -1, "Floating error enable" },
825 { 0x00004000, -1, "Floating underflow enable" },
826 { 0x00002000, -1, "IEEE" },
827 { 0x00001000, -1, "Sequential stores" },
828 { 0x00000800, -1, "Intrinsic error" },
829 { 0x00000400, -1, "Intrinsic error enable" },
830 { 0x00000200, -1, "Trace thread creates" },
831 { 0x00000100, -1, "Thread init trap" },
832 { 0x000000e0, 5, "Reserved" },
833 { 0x0000001f, 0, "Intrinsic error code" },
841 psw
= parse_and_eval_address (arg
);
843 psw
= read_register (PS_REGNUM
);
845 for (p
= pswbit
; p
->bit
; p
++)
848 printf_filtered ("%08x %s %s\n", p
->bit
,
849 (psw
& p
->bit
) ? "yes" : "no ", p
->text
);
851 printf_filtered ("%08x %3d %s\n", p
->bit
,
852 (psw
& p
->bit
) >> p
->pos
, p
->text
);
858 /* reg (fmt_field, inst_field) --
859 the {first,second,third} operand of instruction as fmt_field = [ijk]
860 gets the value of the field from the [ijk] position of the instruction */
862 #define reg(a,b) ((char (*)[3])(op[fmt->a]))[inst.f0.b]
864 /* lit (fmt_field) -- field [ijk] is a literal (PSW, VL, eg) */
866 #define lit(i) op[fmt->i]
868 /* aj[j] -- name for A register j */
870 #define aj ((char (*)[3])(op[A]))
890 unsigned char byte
[8];
891 unsigned short half
[4];
893 short signed_half
[4];
897 int mask
; /* opcode mask */
898 int shift
; /* opcode align */
899 struct formstr
*formstr
[3]; /* ST, E0, E1 */
903 unsigned lop
:8, rop
:5; /* opcode */
904 unsigned fmt
:5; /* inst format */
905 unsigned i
:5, j
:5, k
:2; /* operand formats */
908 #include "opcode/convex.h"
910 CONST
unsigned char formdecode
[] = {
911 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
912 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
913 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
914 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
915 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
916 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
917 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
918 4,4,4,4,4,4,4,4,5,5,5,5,6,6,7,8,
919 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
920 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
921 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
922 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
923 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
924 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
925 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
926 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
929 CONST
struct opform opdecode
[] = {
930 0x7e00, 9, format0
, e0_format0
, e1_format0
,
931 0x3f00, 8, format1
, e0_format1
, e1_format1
,
932 0x1fc0, 6, format2
, e0_format2
, e1_format2
,
933 0x0fc0, 6, format3
, e0_format3
, e1_format3
,
934 0x0700, 8, format4
, e0_format4
, e1_format4
,
935 0x03c0, 6, format5
, e0_format5
, e1_format5
,
936 0x01f8, 3, format6
, e0_format6
, e1_format6
,
937 0x00f8, 3, format7
, e0_format7
, e1_format7
,
938 0x0000, 0, formatx
, formatx
, formatx
,
939 0x0f80, 7, formatx
, formatx
, formatx
,
940 0x0f80, 7, formatx
, formatx
, formatx
,
943 /* Print the instruction at address MEMADDR in debugged memory,
944 on STREAM. Returns length of the instruction, in bytes. */
947 convex_print_insn (memaddr
, stream
)
953 register int format
, op1
, pfx
;
956 read_memory (memaddr
, &inst
, sizeof inst
);
958 /* Remove and note prefix, if present */
961 if ((pfx
& 0xfff0) == 0x7ef0)
963 pfx
= ((pfx
>> 3) & 1) + 1;
964 *(long long *) &inst
= *(long long *) &inst
.half
[1];
968 /* Split opcode into format.op1 and look up in appropriate table */
970 format
= formdecode
[inst
.byte
[0]];
971 op1
= (inst
.half
[0] & opdecode
[format
].mask
) >> opdecode
[format
].shift
;
976 else if (inst
.f1
.j
== 0)
977 fmt
= &format1a
[op1
];
978 else if (inst
.f1
.j
== 1)
979 fmt
= &format1b
[op1
];
984 fmt
= &opdecode
[format
].formstr
[pfx
][op1
];
991 fprintf (stream
, "0x%04x", pfx
? pfx
: inst
.half
[0]);
998 fprintf (stream
, "%s%s%s", lop
[fmt
->lop
], rop
[fmt
->rop
],
999 &" "[strlen(lop
[fmt
->lop
]) + strlen(rop
[fmt
->rop
])]);
1003 case rrr
: /* three register */
1004 fprintf (stream
, "%s,%s,%s", reg(i
,i
), reg(j
,j
), reg(k
,k
));
1007 case rr
: /* two register */
1008 fprintf (stream
, "%s,%s", reg(i
,j
), reg(j
,k
));
1011 case rxr
: /* two register, reversed i and j fields */
1012 fprintf (stream
, "%s,%s", reg(i
,k
), reg(j
,j
));
1015 case r
: /* one register */
1016 fprintf (stream
, "%s", reg(i
,k
));
1019 case nops
: /* no operands */
1022 case nr
: /* short immediate, one register */
1023 fprintf (stream
, "#%d,%s", inst
.f0
.j
, reg(i
,k
));
1026 case pcrel
: /* pc relative */
1027 print_address (memaddr
+ 2 * inst
.signed_byte
[1], stream
);
1030 case lr
: /* literal, one register */
1031 fprintf (stream
, "%s,%s", lit(i
), reg(j
,k
));
1034 case rxl
: /* one register, literal */
1035 fprintf (stream
, "%s,%s", reg(i
,k
), lit(j
));
1038 case rlr
: /* register, literal, register */
1039 fprintf (stream
, "%s,%s,%s", reg(i
,j
), lit(j
), reg(k
,k
));
1042 case rrl
: /* register, register, literal */
1043 fprintf (stream
, "%s,%s,%s", reg(i
,j
), reg(j
,k
), lit(k
));
1046 case iml
: /* immediate, literal */
1049 fprintf (stream
, "#%#x,%s",
1050 (inst
.signed_half
[1] << 16) + inst
.half
[2], lit(i
));
1055 fprintf (stream
, "#%d,%s", inst
.signed_half
[1], lit(i
));
1059 case imr
: /* immediate, register */
1062 fprintf (stream
, "#%#x,%s",
1063 (inst
.signed_half
[1] << 16) + inst
.half
[2], reg(i
,k
));
1068 fprintf (stream
, "#%d,%s", inst
.signed_half
[1], reg(i
,k
));
1072 case a1r
: /* memory, register */
1073 l
= print_effa (inst
, stream
);
1074 fprintf (stream
, ",%s", reg(i
,k
));
1077 case a1l
: /* memory, literal */
1078 l
= print_effa (inst
, stream
);
1079 fprintf (stream
, ",%s", lit(i
));
1082 case a2r
: /* register, memory */
1083 fprintf (stream
, "%s,", reg(i
,k
));
1084 return pfx
+ print_effa (inst
, stream
);
1086 case a2l
: /* literal, memory */
1087 fprintf (stream
, "%s,", lit(i
));
1088 return pfx
+ print_effa (inst
, stream
);
1090 case a3
: /* memory */
1091 return pfx
+ print_effa (inst
, stream
);
1093 case a4
: /* system call */
1100 unsigned int m
= (inst
.signed_half
[1] << 16) + inst
.half
[2];
1101 fprintf (stream
, "#%d,#%d", m
>> l
, m
& (-1 >> (32-l
)));
1106 unsigned int m
= inst
.signed_half
[1];
1107 fprintf (stream
, "#%d,#%d", m
>> l
, m
& (-1 >> (32-l
)));
1114 /* print effective address @nnn(aj), return instruction length */
1116 int print_effa (inst
, stream
)
1124 n
= (inst
.signed_half
[1] << 16) + inst
.half
[2];
1129 n
= inst
.signed_half
[1];
1138 print_address (n
, stream
);
1142 fprintf (stream
, (n
& 0xf0000000) == 0x80000000 ? "%#x(%s)" : "%d(%s)",
1150 _initialize_convex_dep ()
1152 add_com ("alias", class_support
, alias_command
,
1153 "Add a new name for an existing command.");
1155 add_cmd ("base", class_vars
, set_base_command
,
1156 "Change the integer output radix to 8, 10 or 16\n\
1157 or use just `set base' with no args to return to the ad-hoc default,\n\
1158 which is 16 for integers that look like addresses, 10 otherwise.",
1161 add_cmd ("pipeline", class_run
, set_pipelining_command
,
1162 "Enable or disable overlapped execution of instructions.\n\
1163 With `set pipe off', exceptions are reported with\n\
1164 $pc pointing at the instruction after the faulting one.\n\
1165 The default is `set pipe on', which runs faster.",
1168 add_cmd ("parallel", class_run
, set_parallel_command
,
1169 "Enable or disable multi-threaded execution of parallel code.\n\
1170 `set parallel off' means run the program on a single CPU.\n\
1171 `set parallel fixed' means run the program with all CPUs assigned to it.\n\
1172 `set parallel on' means run the program on any CPUs that are available.",
1175 add_com ("1cont", class_run
, one_cont_command
,
1176 "Continue the program, activating only the current thread.\n\
1177 Args are the same as the `cont' command.");
1179 add_com ("thread", class_run
, set_thread_command
,
1180 "Change the current thread, the one under scrutiny and control.\n\
1181 With no arg, show the active threads, the current one marked with *.");
1183 add_info ("threads", thread_info
,
1184 "List status of active threads.");
1186 add_info ("comm-registers", comm_registers_info
,
1187 "List communication registers and their contents.\n\
1188 A communication register name as argument means describe only that register.\n\
1189 An address as argument means describe the resource structure at that address.\n\
1190 `Locked' means that the register has been sent to but not yet received from.");
1192 add_info ("psw", psw_info
,
1193 "Display $ps, the processor status word, bit by bit.\n\
1194 An argument means display that value's interpretation as a psw.");
1196 add_cmd ("convex", no_class
, 0, "Convex-specific commands.\n\
1197 32-bit registers $pc $ps $sp $ap $fp $a1-5 $s0-7 $v0-7 $vl $vs $vm $c0-63\n\
1198 64-bit registers $S0-7 $V0-7 $C0-63\n\
1200 info threads display info on stopped threads waiting to signal\n\
1201 thread display list of active threads\n\
1202 thread N select thread N (its registers, stack, memory, etc.)\n\
1203 step, next, etc step selected thread only\n\
1204 1cont continue selected thread only\n\
1205 cont continue all threads\n\
1206 info comm-registers display contents of comm register(s) or a resource struct\n\
1207 info psw display processor status word $ps\n\
1208 set base N change integer radix used by `print' without a format\n\
1209 set pipeline off exceptions are precise, $pc points after the faulting insn\n\
1210 set pipeline on normal mode, $pc is somewhere ahead of faulting insn\n\
1211 set parallel off program runs on a single CPU\n\
1212 set parallel fixed all CPUs are assigned to the program\n\
1213 set parallel on normal mode, parallel execution on random available CPUs\n\
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