1 /* Target-dependent code for the S+core architecture, for GDB,
4 Copyright (C) 2006-2016 Free Software Foundation, Inc.
6 Contributed by Qinwei (qinwei@sunnorth.com.cn)
7 Contributed by Ching-Peng Lin (cplin@sunplus.com)
9 This file is part of GDB.
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>. */
30 #include "arch-utils.h"
34 #include "frame-unwind.h"
35 #include "frame-base.h"
36 #include "trad-frame.h"
37 #include "dwarf2-frame.h"
38 #include "score-tdep.h"
40 #define G_FLD(_i,_ms,_ls) \
41 ((unsigned)((_i) << (31 - (_ms))) >> (31 - (_ms) + (_ls)))
45 unsigned long long raw
;
49 struct score_frame_cache
53 struct trad_frame_saved_reg
*saved_regs
;
56 static int target_mach
= bfd_mach_score7
;
59 score_register_type (struct gdbarch
*gdbarch
, int regnum
)
61 gdb_assert (regnum
>= 0
62 && regnum
< ((target_mach
== bfd_mach_score7
)
63 ? SCORE7_NUM_REGS
: SCORE3_NUM_REGS
));
64 return builtin_type (gdbarch
)->builtin_uint32
;
68 score_unwind_sp (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
)
70 return frame_unwind_register_unsigned (next_frame
, SCORE_SP_REGNUM
);
74 score_unwind_pc (struct gdbarch
*gdbarch
, struct frame_info
*next_frame
)
76 return frame_unwind_register_unsigned (next_frame
, SCORE_PC_REGNUM
);
80 score7_register_name (struct gdbarch
*gdbarch
, int regnum
)
82 const char *score_register_names
[] = {
83 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
84 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
85 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
86 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
88 "PSR", "COND", "ECR", "EXCPVEC", "CCR",
89 "EPC", "EMA", "TLBLOCK", "TLBPT", "PEADDR",
90 "TLBRPT", "PEVN", "PECTX", "LIMPFN", "LDMPFN",
91 "PREV", "DREG", "PC", "DSAVE", "COUNTER",
92 "LDCR", "STCR", "CEH", "CEL",
95 gdb_assert (regnum
>= 0 && regnum
< SCORE7_NUM_REGS
);
96 return score_register_names
[regnum
];
100 score3_register_name (struct gdbarch
*gdbarch
, int regnum
)
102 const char *score_register_names
[] = {
103 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
104 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
105 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
106 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
108 "PSR", "COND", "ECR", "EXCPVEC", "CCR",
109 "EPC", "EMA", "PREV", "DREG", "DSAVE",
110 "COUNTER", "LDCR", "STCR", "CEH", "CEL",
114 gdb_assert (regnum
>= 0 && regnum
< SCORE3_NUM_REGS
);
115 return score_register_names
[regnum
];
120 score_register_sim_regno (struct gdbarch
*gdbarch
, int regnum
)
122 gdb_assert (regnum
>= 0
123 && regnum
< ((target_mach
== bfd_mach_score7
)
124 ? SCORE7_NUM_REGS
: SCORE3_NUM_REGS
));
130 score_print_insn (bfd_vma memaddr
, struct disassemble_info
*info
)
132 if (info
->endian
== BFD_ENDIAN_BIG
)
133 return print_insn_big_score (memaddr
, info
);
135 return print_insn_little_score (memaddr
, info
);
139 score7_fetch_inst (struct gdbarch
*gdbarch
, CORE_ADDR addr
, gdb_byte
*memblock
)
141 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
142 static inst_t inst
= { 0, 0, 0 };
143 gdb_byte buf
[SCORE_INSTLEN
] = { 0 };
147 if (target_has_execution
&& memblock
!= NULL
)
149 /* Fetch instruction from local MEMBLOCK. */
150 memcpy (buf
, memblock
, SCORE_INSTLEN
);
154 /* Fetch instruction from target. */
155 ret
= target_read_memory (addr
& ~0x3, buf
, SCORE_INSTLEN
);
158 error (_("Error: target_read_memory in file:%s, line:%d!"),
164 inst
.raw
= extract_unsigned_integer (buf
, SCORE_INSTLEN
, byte_order
);
165 inst
.len
= (inst
.raw
& 0x80008000) ? 4 : 2;
166 inst
.v
= ((inst
.raw
>> 16 & 0x7FFF) << 15) | (inst
.raw
& 0x7FFF);
167 big
= (byte_order
== BFD_ENDIAN_BIG
);
170 if (big
^ ((addr
& 0x2) == 2))
171 inst
.v
= G_FLD (inst
.v
, 29, 15);
173 inst
.v
= G_FLD (inst
.v
, 14, 0);
179 score3_adjust_pc_and_fetch_inst (CORE_ADDR
*pcptr
, int *lenptr
,
180 enum bfd_endian byte_order
)
182 static inst_t inst
= { 0, 0, 0 };
189 /* raw table 1 (column 2, 3, 4)
193 table 2 (column 1, 2, 3)
199 static const struct breakplace bk_table
[16] =
221 #define EXTRACT_LEN 2
222 CORE_ADDR adjust_pc
= *pcptr
& ~0x1;
223 gdb_byte buf
[5][EXTRACT_LEN
] =
233 unsigned int cbits
= 0;
242 for (i
= 0; i
< 5; i
++)
244 ret
= target_read_memory (adjust_pc
+ 2 * i
, buf
[i
], EXTRACT_LEN
);
250 error (_("Error: target_read_memory in file:%s, line:%d!"),
254 raw
= extract_unsigned_integer (buf
[i
], EXTRACT_LEN
, byte_order
);
255 cbits
= (cbits
<< 1) | (raw
>> 15);
262 cbits
= (cbits
>> 1) & 0x7;
268 cbits
= (cbits
>> 2) & 0x7;
269 bk_index
= cbits
+ 8;
272 gdb_assert (!((bk_table
[bk_index
].break_offset
== 0)
273 && (bk_table
[bk_index
].inst_len
== 0)));
275 inst
.len
= bk_table
[bk_index
].inst_len
;
277 i
= (bk_table
[bk_index
].break_offset
+ 4) / 2;
278 count
= inst
.len
/ 2;
279 for (; count
> 0; i
++, count
--)
281 inst
.raw
= (inst
.raw
<< 16)
282 | extract_unsigned_integer (buf
[i
], EXTRACT_LEN
, byte_order
);
288 inst
.v
= inst
.raw
& 0x7FFF;
291 inst
.v
= ((inst
.raw
>> 16 & 0x7FFF) << 15) | (inst
.raw
& 0x7FFF);
294 inst
.v
= ((inst
.raw
>> 32 & 0x7FFF) << 30)
295 | ((inst
.raw
>> 16 & 0x7FFF) << 15) | (inst
.raw
& 0x7FFF);
300 *pcptr
= adjust_pc
+ bk_table
[bk_index
].break_offset
;
302 *lenptr
= bk_table
[bk_index
].inst_len
;
309 static const gdb_byte
*
310 score7_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
,
313 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
314 gdb_byte buf
[SCORE_INSTLEN
] = { 0 };
318 if ((ret
= target_read_memory (*pcptr
& ~0x3, buf
, SCORE_INSTLEN
)) != 0)
320 error (_("Error: target_read_memory in file:%s, line:%d!"),
323 raw
= extract_unsigned_integer (buf
, SCORE_INSTLEN
, byte_order
);
325 if (byte_order
== BFD_ENDIAN_BIG
)
327 if (!(raw
& 0x80008000))
329 /* 16bits instruction. */
330 static gdb_byte big_breakpoint16
[] = { 0x60, 0x02 };
332 *lenptr
= sizeof (big_breakpoint16
);
333 return big_breakpoint16
;
337 /* 32bits instruction. */
338 static gdb_byte big_breakpoint32
[] = { 0x80, 0x00, 0x80, 0x06 };
340 *lenptr
= sizeof (big_breakpoint32
);
341 return big_breakpoint32
;
346 if (!(raw
& 0x80008000))
348 /* 16bits instruction. */
349 static gdb_byte little_breakpoint16
[] = { 0x02, 0x60 };
351 *lenptr
= sizeof (little_breakpoint16
);
352 return little_breakpoint16
;
356 /* 32bits instruction. */
357 static gdb_byte little_breakpoint32
[] = { 0x06, 0x80, 0x00, 0x80 };
359 *lenptr
= sizeof (little_breakpoint32
);
360 return little_breakpoint32
;
365 static const gdb_byte
*
366 score3_breakpoint_from_pc (struct gdbarch
*gdbarch
, CORE_ADDR
*pcptr
,
369 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
370 CORE_ADDR adjust_pc
= *pcptr
;
372 static gdb_byte score_break_insns
[6][6] = {
373 /* The following three instructions are big endian. */
375 { 0x80, 0x00, 0x00, 0x06 },
376 { 0x80, 0x00, 0x80, 0x00, 0x00, 0x00 },
377 /* The following three instructions are little endian. */
379 { 0x00, 0x80, 0x06, 0x00 },
380 { 0x00, 0x80, 0x00, 0x80, 0x00, 0x00 }};
385 score3_adjust_pc_and_fetch_inst (&adjust_pc
, &len
, byte_order
);
387 index
= ((byte_order
== BFD_ENDIAN_BIG
) ? 0 : 3) + (len
/ 2 - 1);
388 p
= score_break_insns
[index
];
397 score_adjust_breakpoint_address (struct gdbarch
*gdbarch
, CORE_ADDR bpaddr
)
399 CORE_ADDR adjust_pc
= bpaddr
;
401 if (target_mach
== bfd_mach_score3
)
402 score3_adjust_pc_and_fetch_inst (&adjust_pc
, NULL
,
403 gdbarch_byte_order (gdbarch
));
405 adjust_pc
= align_down (adjust_pc
, 2);
411 score_frame_align (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
413 return align_down (addr
, 16);
417 score_xfer_register (struct regcache
*regcache
, int regnum
, int length
,
418 enum bfd_endian endian
, gdb_byte
*readbuf
,
419 const gdb_byte
*writebuf
, int buf_offset
)
422 gdb_assert (regnum
>= 0
423 && regnum
< ((target_mach
== bfd_mach_score7
)
424 ? SCORE7_NUM_REGS
: SCORE3_NUM_REGS
));
429 reg_offset
= SCORE_REGSIZE
- length
;
431 case BFD_ENDIAN_LITTLE
:
434 case BFD_ENDIAN_UNKNOWN
:
438 error (_("Error: score_xfer_register in file:%s, line:%d!"),
443 regcache_cooked_read_part (regcache
, regnum
, reg_offset
, length
,
444 readbuf
+ buf_offset
);
445 if (writebuf
!= NULL
)
446 regcache_cooked_write_part (regcache
, regnum
, reg_offset
, length
,
447 writebuf
+ buf_offset
);
450 static enum return_value_convention
451 score_return_value (struct gdbarch
*gdbarch
, struct value
*function
,
452 struct type
*type
, struct regcache
*regcache
,
453 gdb_byte
* readbuf
, const gdb_byte
* writebuf
)
455 if (TYPE_CODE (type
) == TYPE_CODE_STRUCT
456 || TYPE_CODE (type
) == TYPE_CODE_UNION
457 || TYPE_CODE (type
) == TYPE_CODE_ARRAY
)
458 return RETURN_VALUE_STRUCT_CONVENTION
;
463 for (offset
= 0, regnum
= SCORE_A0_REGNUM
;
464 offset
< TYPE_LENGTH (type
);
465 offset
+= SCORE_REGSIZE
, regnum
++)
467 int xfer
= SCORE_REGSIZE
;
469 if (offset
+ xfer
> TYPE_LENGTH (type
))
470 xfer
= TYPE_LENGTH (type
) - offset
;
471 score_xfer_register (regcache
, regnum
, xfer
,
472 gdbarch_byte_order(gdbarch
),
473 readbuf
, writebuf
, offset
);
475 return RETURN_VALUE_REGISTER_CONVENTION
;
479 static struct frame_id
480 score_dummy_id (struct gdbarch
*gdbarch
, struct frame_info
*this_frame
)
482 return frame_id_build (get_frame_register_unsigned (this_frame
,
484 get_frame_pc (this_frame
));
488 score_type_needs_double_align (struct type
*type
)
490 enum type_code typecode
= TYPE_CODE (type
);
492 if ((typecode
== TYPE_CODE_INT
&& TYPE_LENGTH (type
) == 8)
493 || (typecode
== TYPE_CODE_FLT
&& TYPE_LENGTH (type
) == 8))
495 else if (typecode
== TYPE_CODE_STRUCT
|| typecode
== TYPE_CODE_UNION
)
499 n
= TYPE_NFIELDS (type
);
500 for (i
= 0; i
< n
; i
++)
501 if (score_type_needs_double_align (TYPE_FIELD_TYPE (type
, i
)))
509 score_push_dummy_call (struct gdbarch
*gdbarch
, struct value
*function
,
510 struct regcache
*regcache
, CORE_ADDR bp_addr
,
511 int nargs
, struct value
**args
, CORE_ADDR sp
,
512 int struct_return
, CORE_ADDR struct_addr
)
514 enum bfd_endian byte_order
= gdbarch_byte_order (gdbarch
);
518 CORE_ADDR stack_offset
= 0;
521 /* Step 1, Save RA. */
522 regcache_cooked_write_unsigned (regcache
, SCORE_RA_REGNUM
, bp_addr
);
524 /* Step 2, Make space on the stack for the args. */
525 struct_addr
= align_down (struct_addr
, 16);
526 sp
= align_down (sp
, 16);
527 for (argnum
= 0; argnum
< nargs
; argnum
++)
528 arglen
+= align_up (TYPE_LENGTH (value_type (args
[argnum
])),
530 sp
-= align_up (arglen
, 16);
532 argreg
= SCORE_BEGIN_ARG_REGNUM
;
534 /* Step 3, Check if struct return then save the struct address to
535 r4 and increase the stack_offset by 4. */
538 regcache_cooked_write_unsigned (regcache
, argreg
++, struct_addr
);
539 stack_offset
+= SCORE_REGSIZE
;
542 /* Step 4, Load arguments:
543 If arg length is too long (> 4 bytes), then split the arg and
545 for (argnum
= 0; argnum
< nargs
; argnum
++)
547 struct value
*arg
= args
[argnum
];
548 struct type
*arg_type
= check_typedef (value_type (arg
));
549 enum type_code typecode
= TYPE_CODE (arg_type
);
550 const gdb_byte
*val
= value_contents (arg
);
551 int downward_offset
= 0;
552 int arg_last_part_p
= 0;
554 arglen
= TYPE_LENGTH (arg_type
);
556 /* If a arg should be aligned to 8 bytes (long long or double),
557 the value should be put to even register numbers. */
558 if (score_type_needs_double_align (arg_type
))
564 /* If sizeof a block < SCORE_REGSIZE, then Score GCC will chose
565 the default "downward"/"upward" method:
571 char a; char b; char c;
572 } s = {'a', 'b', 'c'};
574 Big endian: s = {X, 'a', 'b', 'c'}
575 Little endian: s = {'a', 'b', 'c', X}
577 Where X is a hole. */
579 if (gdbarch_byte_order(gdbarch
) == BFD_ENDIAN_BIG
580 && (typecode
== TYPE_CODE_STRUCT
581 || typecode
== TYPE_CODE_UNION
)
582 && argreg
> SCORE_LAST_ARG_REGNUM
583 && arglen
< SCORE_REGSIZE
)
584 downward_offset
+= (SCORE_REGSIZE
- arglen
);
588 int partial_len
= arglen
< SCORE_REGSIZE
? arglen
: SCORE_REGSIZE
;
589 ULONGEST regval
= extract_unsigned_integer (val
, partial_len
,
592 /* The last part of a arg should shift left when
593 gdbarch_byte_order is BFD_ENDIAN_BIG. */
594 if (byte_order
== BFD_ENDIAN_BIG
595 && arg_last_part_p
== 1
596 && (typecode
== TYPE_CODE_STRUCT
597 || typecode
== TYPE_CODE_UNION
))
598 regval
<<= ((SCORE_REGSIZE
- partial_len
) * TARGET_CHAR_BIT
);
600 /* Always increase the stack_offset and save args to stack. */
601 addr
= sp
+ stack_offset
+ downward_offset
;
602 write_memory (addr
, val
, partial_len
);
604 if (argreg
<= SCORE_LAST_ARG_REGNUM
)
606 regcache_cooked_write_unsigned (regcache
, argreg
++, regval
);
607 if (arglen
> SCORE_REGSIZE
&& arglen
< SCORE_REGSIZE
* 2)
612 arglen
-= partial_len
;
613 stack_offset
+= align_up (partial_len
, SCORE_REGSIZE
);
617 /* Step 5, Save SP. */
618 regcache_cooked_write_unsigned (regcache
, SCORE_SP_REGNUM
, sp
);
624 score7_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR pc
)
627 int iscan
= 32, stack_sub
= 0;
630 inst_t
*inst
= score7_fetch_inst (gdbarch
, cpc
, NULL
);
633 if ((inst
->len
== 4) && !stack_sub
634 && (G_FLD (inst
->v
, 29, 25) == 0x1
635 && G_FLD (inst
->v
, 24, 20) == 0x0))
637 /* addi r0, offset */
638 stack_sub
= cpc
+ SCORE_INSTLEN
;
639 pc
= cpc
+ SCORE_INSTLEN
;
641 else if ((inst
->len
== 4)
642 && (G_FLD (inst
->v
, 29, 25) == 0x0)
643 && (G_FLD (inst
->v
, 24, 20) == 0x2)
644 && (G_FLD (inst
->v
, 19, 15) == 0x0)
645 && (G_FLD (inst
->v
, 14, 10) == 0xF)
646 && (G_FLD (inst
->v
, 9, 0) == 0x56))
649 pc
= cpc
+ SCORE_INSTLEN
;
652 else if ((inst
->len
== 2)
653 && (G_FLD (inst
->v
, 14, 12) == 0x0)
654 && (G_FLD (inst
->v
, 11, 8) == 0x2)
655 && (G_FLD (inst
->v
, 7, 4) == 0x0)
656 && (G_FLD (inst
->v
, 3, 0) == 0x3))
659 pc
= cpc
+ SCORE16_INSTLEN
;
662 else if ((inst
->len
== 2)
663 && ((G_FLD (inst
->v
, 14, 12) == 3) /* j15 form */
664 || (G_FLD (inst
->v
, 14, 12) == 4) /* b15 form */
665 || (G_FLD (inst
->v
, 14, 12) == 0x0
666 && G_FLD (inst
->v
, 3, 0) == 0x4))) /* br! */
668 else if ((inst
->len
== 4)
669 && ((G_FLD (inst
->v
, 29, 25) == 2) /* j32 form */
670 || (G_FLD (inst
->v
, 29, 25) == 4) /* b32 form */
671 || (G_FLD (inst
->v
, 29, 25) == 0x0
672 && G_FLD (inst
->v
, 6, 1) == 0x4))) /* br */
675 cpc
+= (inst
->len
== 2) ? SCORE16_INSTLEN
: SCORE_INSTLEN
;
681 score3_skip_prologue (struct gdbarch
*gdbarch
, CORE_ADDR pc
)
684 int iscan
= 32, stack_sub
= 0;
688 = score3_adjust_pc_and_fetch_inst (&cpc
, NULL
,
689 gdbarch_byte_order (gdbarch
));
693 if (inst
->len
== 4 && !stack_sub
694 && (G_FLD (inst
->v
, 29, 25) == 0x1)
695 && (G_FLD (inst
->v
, 19, 17) == 0x0)
696 && (G_FLD (inst
->v
, 24, 20) == 0x0))
698 /* addi r0, offset */
699 stack_sub
= cpc
+ inst
->len
;
700 pc
= cpc
+ inst
->len
;
702 else if (inst
->len
== 4
703 && (G_FLD (inst
->v
, 29, 25) == 0x0)
704 && (G_FLD (inst
->v
, 24, 20) == 0x2)
705 && (G_FLD (inst
->v
, 19, 15) == 0x0)
706 && (G_FLD (inst
->v
, 14, 10) == 0xF)
707 && (G_FLD (inst
->v
, 9, 0) == 0x56))
710 pc
= cpc
+ inst
->len
;
713 else if ((inst
->len
== 2)
714 && (G_FLD (inst
->v
, 14, 10) == 0x10)
715 && (G_FLD (inst
->v
, 9, 5) == 0x2)
716 && (G_FLD (inst
->v
, 4, 0) == 0x0))
719 pc
= cpc
+ inst
->len
;
722 else if (inst
->len
== 2
723 && ((G_FLD (inst
->v
, 14, 12) == 3) /* b15 form */
724 || (G_FLD (inst
->v
, 14, 12) == 0x0
725 && G_FLD (inst
->v
, 11, 5) == 0x4))) /* br! */
727 else if (inst
->len
== 4
728 && ((G_FLD (inst
->v
, 29, 25) == 2) /* j32 form */
729 || (G_FLD (inst
->v
, 29, 25) == 4))) /* b32 form */
737 /* Implement the stack_frame_destroyed_p gdbarch method. */
740 score7_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR cur_pc
)
742 inst_t
*inst
= score7_fetch_inst (gdbarch
, cur_pc
, NULL
);
745 return 1; /* mv! r0, r2 */
746 else if (G_FLD (inst
->v
, 14, 12) == 0x2
747 && G_FLD (inst
->v
, 3, 0) == 0xa)
749 else if (G_FLD (inst
->v
, 14, 12) == 0x0
750 && G_FLD (inst
->v
, 7, 0) == 0x34)
751 return 1; /* br! r3 */
752 else if (G_FLD (inst
->v
, 29, 15) == 0x2
753 && G_FLD (inst
->v
, 6, 1) == 0x2b)
754 return 1; /* mv r0, r2 */
755 else if (G_FLD (inst
->v
, 29, 25) == 0x0
756 && G_FLD (inst
->v
, 6, 1) == 0x4
757 && G_FLD (inst
->v
, 19, 15) == 0x3)
758 return 1; /* br r3 */
763 /* Implement the stack_frame_destroyed_p gdbarch method. */
766 score3_stack_frame_destroyed_p (struct gdbarch
*gdbarch
, CORE_ADDR cur_pc
)
768 CORE_ADDR pc
= cur_pc
;
770 = score3_adjust_pc_and_fetch_inst (&pc
, NULL
,
771 gdbarch_byte_order (gdbarch
));
774 && (G_FLD (inst
->v
, 14, 10) == 0x10)
775 && (G_FLD (inst
->v
, 9, 5) == 0x0)
776 && (G_FLD (inst
->v
, 4, 0) == 0x2))
777 return 1; /* mv! r0, r2 */
778 else if (inst
->len
== 4
779 && (G_FLD (inst
->v
, 29, 25) == 0x0)
780 && (G_FLD (inst
->v
, 24, 20) == 0x2)
781 && (G_FLD (inst
->v
, 19, 15) == 0x0)
782 && (G_FLD (inst
->v
, 14, 10) == 0xF)
783 && (G_FLD (inst
->v
, 9, 0) == 0x56))
784 return 1; /* mv r0, r2 */
785 else if (inst
->len
== 2
786 && (G_FLD (inst
->v
, 14, 12) == 0x0)
787 && (G_FLD (inst
->v
, 11, 5) == 0x2))
789 else if (inst
->len
== 2
790 && (G_FLD (inst
->v
, 14, 12) == 0x0)
791 && (G_FLD (inst
->v
, 11, 7) == 0x0)
792 && (G_FLD (inst
->v
, 6, 5) == 0x2))
793 return 1; /* rpop! */
794 else if (inst
->len
== 2
795 && (G_FLD (inst
->v
, 14, 12) == 0x0)
796 && (G_FLD (inst
->v
, 11, 5) == 0x4)
797 && (G_FLD (inst
->v
, 4, 0) == 0x3))
798 return 1; /* br! r3 */
799 else if (inst
->len
== 4
800 && (G_FLD (inst
->v
, 29, 25) == 0x0)
801 && (G_FLD (inst
->v
, 24, 20) == 0x0)
802 && (G_FLD (inst
->v
, 19, 15) == 0x3)
803 && (G_FLD (inst
->v
, 14, 10) == 0xF)
804 && (G_FLD (inst
->v
, 9, 0) == 0x8))
805 return 1; /* br r3 */
811 score7_malloc_and_get_memblock (CORE_ADDR addr
, CORE_ADDR size
)
814 gdb_byte
*memblock
= NULL
;
819 memblock
= (gdb_byte
*) xmalloc (size
);
820 memset (memblock
, 0, size
);
821 ret
= target_read_memory (addr
& ~0x3, memblock
, size
);
824 error (_("Error: target_read_memory in file:%s, line:%d!"),
832 score7_free_memblock (gdb_byte
*memblock
)
838 score7_adjust_memblock_ptr (gdb_byte
**memblock
, CORE_ADDR prev_pc
,
843 /* First time call this function, do nothing. */
845 else if (cur_pc
- prev_pc
== 2 && (cur_pc
& 0x3) == 0)
847 /* First 16-bit instruction, then 32-bit instruction. */
848 *memblock
+= SCORE_INSTLEN
;
850 else if (cur_pc
- prev_pc
== 4)
852 /* Is 32-bit instruction, increase MEMBLOCK by 4. */
853 *memblock
+= SCORE_INSTLEN
;
858 score7_analyze_prologue (CORE_ADDR startaddr
, CORE_ADDR pc
,
859 struct frame_info
*this_frame
,
860 struct score_frame_cache
*this_cache
)
862 struct gdbarch
*gdbarch
= get_frame_arch (this_frame
);
865 CORE_ADDR cur_pc
= startaddr
;
874 gdb_byte
*memblock
= NULL
;
875 gdb_byte
*memblock_ptr
= NULL
;
876 CORE_ADDR prev_pc
= -1;
878 /* Allocate MEMBLOCK if PC - STARTADDR > 0. */
879 memblock_ptr
= memblock
=
880 score7_malloc_and_get_memblock (startaddr
, pc
- startaddr
);
882 sp
= get_frame_register_unsigned (this_frame
, SCORE_SP_REGNUM
);
883 fp
= get_frame_register_unsigned (this_frame
, SCORE_FP_REGNUM
);
885 for (; cur_pc
< pc
; prev_pc
= cur_pc
, cur_pc
+= inst_len
)
888 if (memblock
!= NULL
)
890 /* Reading memory block from target succefully and got all
891 the instructions(from STARTADDR to PC) needed. */
892 score7_adjust_memblock_ptr (&memblock
, prev_pc
, cur_pc
);
893 inst
= score7_fetch_inst (gdbarch
, cur_pc
, memblock
);
897 /* Otherwise, we fetch 4 bytes from target, and GDB also
899 inst
= score7_fetch_inst (gdbarch
, cur_pc
, NULL
);
902 /* FIXME: make a full-power prologue analyzer. */
905 inst_len
= SCORE16_INSTLEN
;
907 if (G_FLD (inst
->v
, 14, 12) == 0x2
908 && G_FLD (inst
->v
, 3, 0) == 0xe)
913 if (G_FLD (inst
->v
, 11, 7) == 0x6
917 ra_offset
= sp_offset
;
920 else if (G_FLD (inst
->v
, 11, 7) == 0x4
924 fp_offset
= sp_offset
;
928 else if (G_FLD (inst
->v
, 14, 12) == 0x2
929 && G_FLD (inst
->v
, 3, 0) == 0xa)
934 else if (G_FLD (inst
->v
, 14, 7) == 0xc1
935 && G_FLD (inst
->v
, 2, 0) == 0x0)
938 sp_offset
+= (int) pow (2, G_FLD (inst
->v
, 6, 3));
940 else if (G_FLD (inst
->v
, 14, 7) == 0xc0
941 && G_FLD (inst
->v
, 2, 0) == 0x0)
944 sp_offset
-= (int) pow (2, G_FLD (inst
->v
, 6, 3));
949 inst_len
= SCORE_INSTLEN
;
951 if (G_FLD(inst
->v
, 29, 25) == 0x3
952 && G_FLD(inst
->v
, 2, 0) == 0x4
953 && G_FLD(inst
->v
, 19, 15) == 0)
955 /* sw rD, [r0, offset]+ */
956 sp_offset
+= SCORE_INSTLEN
;
958 if (G_FLD(inst
->v
, 24, 20) == 0x3)
961 if (ra_offset_p
== 0)
963 ra_offset
= sp_offset
;
967 else if (G_FLD(inst
->v
, 24, 20) == 0x2)
970 if (fp_offset_p
== 0)
972 fp_offset
= sp_offset
;
977 else if (G_FLD(inst
->v
, 29, 25) == 0x14
978 && G_FLD(inst
->v
, 19,15) == 0)
980 /* sw rD, [r0, offset] */
981 if (G_FLD(inst
->v
, 24, 20) == 0x3)
984 ra_offset
= sp_offset
- G_FLD(inst
->v
, 14, 0);
987 else if (G_FLD(inst
->v
, 24, 20) == 0x2)
990 fp_offset
= sp_offset
- G_FLD(inst
->v
, 14, 0);
994 else if (G_FLD (inst
->v
, 29, 15) == 0x1c60
995 && G_FLD (inst
->v
, 2, 0) == 0x0)
997 /* lw r3, [r0]+, 4 */
998 sp_offset
-= SCORE_INSTLEN
;
1001 else if (G_FLD (inst
->v
, 29, 15) == 0x1c40
1002 && G_FLD (inst
->v
, 2, 0) == 0x0)
1004 /* lw r2, [r0]+, 4 */
1005 sp_offset
-= SCORE_INSTLEN
;
1009 else if (G_FLD (inst
->v
, 29, 17) == 0x100
1010 && G_FLD (inst
->v
, 0, 0) == 0x0)
1012 /* addi r0, -offset */
1013 sp_offset
+= 65536 - G_FLD (inst
->v
, 16, 1);
1015 else if (G_FLD (inst
->v
, 29, 17) == 0x110
1016 && G_FLD (inst
->v
, 0, 0) == 0x0)
1018 /* addi r2, offset */
1019 if (pc
- cur_pc
> 4)
1021 unsigned int save_v
= inst
->v
;
1023 score7_fetch_inst (gdbarch
, cur_pc
+ SCORE_INSTLEN
, NULL
);
1024 if (inst2
->v
== 0x23)
1027 sp_offset
-= G_FLD (save_v
, 16, 1);
1035 if (ra_offset_p
== 1)
1037 if (this_cache
->saved_regs
[SCORE_PC_REGNUM
].addr
== -1)
1038 this_cache
->saved_regs
[SCORE_PC_REGNUM
].addr
=
1039 sp
+ sp_offset
- ra_offset
;
1043 this_cache
->saved_regs
[SCORE_PC_REGNUM
] =
1044 this_cache
->saved_regs
[SCORE_RA_REGNUM
];
1048 if (fp_offset_p
== 1)
1050 if (this_cache
->saved_regs
[SCORE_FP_REGNUM
].addr
== -1)
1051 this_cache
->saved_regs
[SCORE_FP_REGNUM
].addr
=
1052 sp
+ sp_offset
- fp_offset
;
1055 /* Save SP and FP. */
1056 this_cache
->base
= sp
+ sp_offset
;
1057 this_cache
->fp
= fp
;
1059 /* Don't forget to free MEMBLOCK if we allocated it. */
1060 if (memblock_ptr
!= NULL
)
1061 score7_free_memblock (memblock_ptr
);
1065 score3_analyze_prologue (CORE_ADDR startaddr
, CORE_ADDR pc
,
1066 struct frame_info
*this_frame
,
1067 struct score_frame_cache
*this_cache
)
1071 CORE_ADDR cur_pc
= startaddr
;
1072 enum bfd_endian byte_order
1073 = gdbarch_byte_order (get_frame_arch (this_frame
));
1078 int ra_offset_p
= 0;
1079 int fp_offset_p
= 0;
1082 sp
= get_frame_register_unsigned (this_frame
, SCORE_SP_REGNUM
);
1083 fp
= get_frame_register_unsigned (this_frame
, SCORE_FP_REGNUM
);
1085 for (; cur_pc
< pc
; cur_pc
+= inst_len
)
1087 inst_t
*inst
= NULL
;
1089 inst
= score3_adjust_pc_and_fetch_inst (&cur_pc
, &inst_len
, byte_order
);
1091 /* FIXME: make a full-power prologue analyzer. */
1094 if (G_FLD (inst
->v
, 14, 12) == 0x0
1095 && G_FLD (inst
->v
, 11, 7) == 0x0
1096 && G_FLD (inst
->v
, 6, 5) == 0x3)
1101 if (G_FLD (inst
->v
, 4, 0) == 0x3
1102 && ra_offset_p
== 0)
1104 /* push! r3, [r0] */
1105 ra_offset
= sp_offset
;
1108 else if (G_FLD (inst
->v
, 4, 0) == 0x2
1109 && fp_offset_p
== 0)
1111 /* push! r2, [r0] */
1112 fp_offset
= sp_offset
;
1116 else if (G_FLD (inst
->v
, 14, 12) == 0x6
1117 && G_FLD (inst
->v
, 11, 10) == 0x3)
1120 int start_r
= G_FLD (inst
->v
, 9, 5);
1121 int cnt
= G_FLD (inst
->v
, 4, 0);
1123 if ((ra_offset_p
== 0)
1124 && (start_r
<= SCORE_RA_REGNUM
)
1125 && (SCORE_RA_REGNUM
< start_r
+ cnt
))
1127 /* rpush! contains r3 */
1129 ra_offset
= sp_offset
+ 4 * (SCORE_RA_REGNUM
- start_r
) + 4;
1132 if ((fp_offset_p
== 0)
1133 && (start_r
<= SCORE_FP_REGNUM
)
1134 && (SCORE_FP_REGNUM
< start_r
+ cnt
))
1136 /* rpush! contains r2 */
1138 fp_offset
= sp_offset
+ 4 * (SCORE_FP_REGNUM
- start_r
) + 4;
1141 sp_offset
+= 4 * cnt
;
1143 else if (G_FLD (inst
->v
, 14, 12) == 0x0
1144 && G_FLD (inst
->v
, 11, 7) == 0x0
1145 && G_FLD (inst
->v
, 6, 5) == 0x2)
1150 else if (G_FLD (inst
->v
, 14, 12) == 0x6
1151 && G_FLD (inst
->v
, 11, 10) == 0x2)
1154 sp_offset
-= 4 * G_FLD (inst
->v
, 4, 0);
1156 else if (G_FLD (inst
->v
, 14, 12) == 0x5
1157 && G_FLD (inst
->v
, 11, 10) == 0x3
1158 && G_FLD (inst
->v
, 9, 6) == 0x0)
1160 /* addi! r0, -offset */
1161 int imm
= G_FLD (inst
->v
, 5, 0);
1163 imm
= -(0x3F - imm
+ 1);
1166 else if (G_FLD (inst
->v
, 14, 12) == 0x5
1167 && G_FLD (inst
->v
, 11, 10) == 0x3
1168 && G_FLD (inst
->v
, 9, 6) == 0x2)
1170 /* addi! r2, offset */
1171 if (pc
- cur_pc
>= 2)
1175 cur_pc
+= inst
->len
;
1176 inst2
= score3_adjust_pc_and_fetch_inst (&cur_pc
, NULL
,
1180 && G_FLD (inst2
->v
, 14, 10) == 0x10
1181 && G_FLD (inst2
->v
, 9, 5) == 0x0
1182 && G_FLD (inst2
->v
, 4, 0) == 0x2)
1185 int imm
= G_FLD (inst
->v
, 5, 0);
1187 imm
= -(0x3F - imm
+ 1);
1193 else if (inst
->len
== 4)
1195 if (G_FLD (inst
->v
, 29, 25) == 0x3
1196 && G_FLD (inst
->v
, 2, 0) == 0x4
1197 && G_FLD (inst
->v
, 24, 20) == 0x3
1198 && G_FLD (inst
->v
, 19, 15) == 0x0)
1200 /* sw r3, [r0, offset]+ */
1201 sp_offset
+= inst
->len
;
1202 if (ra_offset_p
== 0)
1204 ra_offset
= sp_offset
;
1208 else if (G_FLD (inst
->v
, 29, 25) == 0x3
1209 && G_FLD (inst
->v
, 2, 0) == 0x4
1210 && G_FLD (inst
->v
, 24, 20) == 0x2
1211 && G_FLD (inst
->v
, 19, 15) == 0x0)
1213 /* sw r2, [r0, offset]+ */
1214 sp_offset
+= inst
->len
;
1215 if (fp_offset_p
== 0)
1217 fp_offset
= sp_offset
;
1221 else if (G_FLD (inst
->v
, 29, 25) == 0x7
1222 && G_FLD (inst
->v
, 2, 0) == 0x0
1223 && G_FLD (inst
->v
, 24, 20) == 0x3
1224 && G_FLD (inst
->v
, 19, 15) == 0x0)
1226 /* lw r3, [r0]+, 4 */
1227 sp_offset
-= inst
->len
;
1230 else if (G_FLD (inst
->v
, 29, 25) == 0x7
1231 && G_FLD (inst
->v
, 2, 0) == 0x0
1232 && G_FLD (inst
->v
, 24, 20) == 0x2
1233 && G_FLD (inst
->v
, 19, 15) == 0x0)
1235 /* lw r2, [r0]+, 4 */
1236 sp_offset
-= inst
->len
;
1239 else if (G_FLD (inst
->v
, 29, 25) == 0x1
1240 && G_FLD (inst
->v
, 19, 17) == 0x0
1241 && G_FLD (inst
->v
, 24, 20) == 0x0
1242 && G_FLD (inst
->v
, 0, 0) == 0x0)
1244 /* addi r0, -offset */
1245 int imm
= G_FLD (inst
->v
, 16, 1);
1247 imm
= -(0xFFFF - imm
+ 1);
1250 else if (G_FLD (inst
->v
, 29, 25) == 0x1
1251 && G_FLD (inst
->v
, 19, 17) == 0x0
1252 && G_FLD (inst
->v
, 24, 20) == 0x2
1253 && G_FLD (inst
->v
, 0, 0) == 0x0)
1255 /* addi r2, offset */
1256 if (pc
- cur_pc
>= 2)
1260 cur_pc
+= inst
->len
;
1261 inst2
= score3_adjust_pc_and_fetch_inst (&cur_pc
, NULL
,
1265 && G_FLD (inst2
->v
, 14, 10) == 0x10
1266 && G_FLD (inst2
->v
, 9, 5) == 0x0
1267 && G_FLD (inst2
->v
, 4, 0) == 0x2)
1270 int imm
= G_FLD (inst
->v
, 16, 1);
1272 imm
= -(0xFFFF - imm
+ 1);
1281 if (ra_offset_p
== 1)
1283 if (this_cache
->saved_regs
[SCORE_PC_REGNUM
].addr
== -1)
1284 this_cache
->saved_regs
[SCORE_PC_REGNUM
].addr
=
1285 sp
+ sp_offset
- ra_offset
;
1289 this_cache
->saved_regs
[SCORE_PC_REGNUM
] =
1290 this_cache
->saved_regs
[SCORE_RA_REGNUM
];
1294 if (fp_offset_p
== 1)
1296 if (this_cache
->saved_regs
[SCORE_FP_REGNUM
].addr
== -1)
1297 this_cache
->saved_regs
[SCORE_FP_REGNUM
].addr
=
1298 sp
+ sp_offset
- fp_offset
;
1301 /* Save SP and FP. */
1302 this_cache
->base
= sp
+ sp_offset
;
1303 this_cache
->fp
= fp
;
1306 static struct score_frame_cache
*
1307 score_make_prologue_cache (struct frame_info
*this_frame
, void **this_cache
)
1309 struct score_frame_cache
*cache
;
1311 if ((*this_cache
) != NULL
)
1312 return (struct score_frame_cache
*) (*this_cache
);
1314 cache
= FRAME_OBSTACK_ZALLOC (struct score_frame_cache
);
1315 (*this_cache
) = cache
;
1316 cache
->saved_regs
= trad_frame_alloc_saved_regs (this_frame
);
1318 /* Analyze the prologue. */
1320 const CORE_ADDR pc
= get_frame_pc (this_frame
);
1321 CORE_ADDR start_addr
;
1323 find_pc_partial_function (pc
, NULL
, &start_addr
, NULL
);
1324 if (start_addr
== 0)
1327 if (target_mach
== bfd_mach_score3
)
1328 score3_analyze_prologue (start_addr
, pc
, this_frame
,
1329 (struct score_frame_cache
*) *this_cache
);
1331 score7_analyze_prologue (start_addr
, pc
, this_frame
,
1332 (struct score_frame_cache
*) *this_cache
);
1336 trad_frame_set_value (cache
->saved_regs
, SCORE_SP_REGNUM
, cache
->base
);
1338 return (struct score_frame_cache
*) (*this_cache
);
1342 score_prologue_this_id (struct frame_info
*this_frame
, void **this_cache
,
1343 struct frame_id
*this_id
)
1345 struct score_frame_cache
*info
= score_make_prologue_cache (this_frame
,
1347 (*this_id
) = frame_id_build (info
->base
, get_frame_func (this_frame
));
1350 static struct value
*
1351 score_prologue_prev_register (struct frame_info
*this_frame
,
1352 void **this_cache
, int regnum
)
1354 struct score_frame_cache
*info
= score_make_prologue_cache (this_frame
,
1356 return trad_frame_get_prev_register (this_frame
, info
->saved_regs
, regnum
);
1359 static const struct frame_unwind score_prologue_unwind
=
1362 default_frame_unwind_stop_reason
,
1363 score_prologue_this_id
,
1364 score_prologue_prev_register
,
1366 default_frame_sniffer
,
1371 score_prologue_frame_base_address (struct frame_info
*this_frame
,
1374 struct score_frame_cache
*info
=
1375 score_make_prologue_cache (this_frame
, this_cache
);
1379 static const struct frame_base score_prologue_frame_base
=
1381 &score_prologue_unwind
,
1382 score_prologue_frame_base_address
,
1383 score_prologue_frame_base_address
,
1384 score_prologue_frame_base_address
,
1387 static const struct frame_base
*
1388 score_prologue_frame_base_sniffer (struct frame_info
*this_frame
)
1390 return &score_prologue_frame_base
;
1393 /* Core file support. */
1395 static const struct regcache_map_entry score7_linux_gregmap
[] =
1397 /* FIXME: According to the current Linux kernel, r0 is preceded by
1398 9 rather than 7 words. */
1399 { 7, REGCACHE_MAP_SKIP
, 4 },
1400 { 32, 0, 4 }, /* r0 ... r31 */
1401 { 1, 55, 4 }, /* CEL */
1402 { 1, 54, 4 }, /* CEH */
1403 { 1, 53, 4 }, /* sr0, i.e. cnt or COUNTER */
1404 { 1, 52, 4 }, /* sr1, i.e. lcr or LDCR */
1405 { 1, 51, 4 }, /* sr2, i.e. scr or STCR */
1406 { 1, 49, 4 }, /* PC (same slot as EPC) */
1407 { 1, 38, 4 }, /* EMA */
1408 { 1, 32, 4 }, /* PSR */
1409 { 1, 34, 4 }, /* ECR */
1410 { 1, 33, 4 }, /* COND */
1414 #define SCORE7_LINUX_EPC_OFFSET (44 * 4)
1415 #define SCORE7_LINUX_SIZEOF_GREGSET (49 * 4)
1418 score7_linux_supply_gregset(const struct regset
*regset
,
1419 struct regcache
*regcache
,
1420 int regnum
, const void *buf
,
1423 regcache_supply_regset (regset
, regcache
, regnum
, buf
, size
);
1425 /* Supply the EPC from the same slot as the PC. Note that the
1426 collect function will store the PC in that slot. */
1427 if ((regnum
== -1 || regnum
== SCORE_EPC_REGNUM
)
1428 && size
>= SCORE7_LINUX_EPC_OFFSET
+ 4)
1429 regcache_raw_supply (regcache
, SCORE_EPC_REGNUM
,
1430 (const gdb_byte
*) buf
1431 + SCORE7_LINUX_EPC_OFFSET
);
1434 static const struct regset score7_linux_gregset
=
1436 score7_linux_gregmap
,
1437 score7_linux_supply_gregset
,
1438 regcache_collect_regset
1441 /* Iterate over core file register note sections. */
1444 score7_linux_iterate_over_regset_sections (struct gdbarch
*gdbarch
,
1445 iterate_over_regset_sections_cb
*cb
,
1447 const struct regcache
*regcache
)
1449 cb (".reg", SCORE7_LINUX_SIZEOF_GREGSET
, &score7_linux_gregset
,
1453 static struct gdbarch
*
1454 score_gdbarch_init (struct gdbarch_info info
, struct gdbarch_list
*arches
)
1456 struct gdbarch
*gdbarch
;
1457 target_mach
= info
.bfd_arch_info
->mach
;
1459 arches
= gdbarch_list_lookup_by_info (arches
, &info
);
1462 return (arches
->gdbarch
);
1464 gdbarch
= gdbarch_alloc (&info
, NULL
);
1466 set_gdbarch_short_bit (gdbarch
, 16);
1467 set_gdbarch_int_bit (gdbarch
, 32);
1468 set_gdbarch_float_bit (gdbarch
, 32);
1469 set_gdbarch_double_bit (gdbarch
, 64);
1470 set_gdbarch_long_double_bit (gdbarch
, 64);
1472 set_gdbarch_register_sim_regno (gdbarch
, score_register_sim_regno
);
1474 set_gdbarch_pc_regnum (gdbarch
, SCORE_PC_REGNUM
);
1475 set_gdbarch_sp_regnum (gdbarch
, SCORE_SP_REGNUM
);
1476 set_gdbarch_adjust_breakpoint_address (gdbarch
,
1477 score_adjust_breakpoint_address
);
1478 set_gdbarch_register_type (gdbarch
, score_register_type
);
1479 set_gdbarch_frame_align (gdbarch
, score_frame_align
);
1480 set_gdbarch_inner_than (gdbarch
, core_addr_lessthan
);
1481 set_gdbarch_unwind_sp (gdbarch
, score_unwind_sp
);
1482 set_gdbarch_unwind_pc (gdbarch
, score_unwind_pc
);
1483 set_gdbarch_print_insn (gdbarch
, score_print_insn
);
1485 switch (target_mach
)
1487 case bfd_mach_score7
:
1488 set_gdbarch_breakpoint_from_pc (gdbarch
, score7_breakpoint_from_pc
);
1489 set_gdbarch_skip_prologue (gdbarch
, score7_skip_prologue
);
1490 set_gdbarch_stack_frame_destroyed_p (gdbarch
,
1491 score7_stack_frame_destroyed_p
);
1492 set_gdbarch_register_name (gdbarch
, score7_register_name
);
1493 set_gdbarch_num_regs (gdbarch
, SCORE7_NUM_REGS
);
1494 /* Core file support. */
1495 set_gdbarch_iterate_over_regset_sections
1496 (gdbarch
, score7_linux_iterate_over_regset_sections
);
1499 case bfd_mach_score3
:
1500 set_gdbarch_breakpoint_from_pc (gdbarch
, score3_breakpoint_from_pc
);
1501 set_gdbarch_skip_prologue (gdbarch
, score3_skip_prologue
);
1502 set_gdbarch_stack_frame_destroyed_p (gdbarch
,
1503 score3_stack_frame_destroyed_p
);
1504 set_gdbarch_register_name (gdbarch
, score3_register_name
);
1505 set_gdbarch_num_regs (gdbarch
, SCORE3_NUM_REGS
);
1509 /* Watchpoint hooks. */
1510 set_gdbarch_have_nonsteppable_watchpoint (gdbarch
, 1);
1512 /* Dummy frame hooks. */
1513 set_gdbarch_return_value (gdbarch
, score_return_value
);
1514 set_gdbarch_call_dummy_location (gdbarch
, AT_ENTRY_POINT
);
1515 set_gdbarch_dummy_id (gdbarch
, score_dummy_id
);
1516 set_gdbarch_push_dummy_call (gdbarch
, score_push_dummy_call
);
1518 /* Normal frame hooks. */
1519 dwarf2_append_unwinders (gdbarch
);
1520 frame_base_append_sniffer (gdbarch
, dwarf2_frame_base_sniffer
);
1521 frame_unwind_append_unwinder (gdbarch
, &score_prologue_unwind
);
1522 frame_base_append_sniffer (gdbarch
, score_prologue_frame_base_sniffer
);
1527 extern initialize_file_ftype _initialize_score_tdep
;
1530 _initialize_score_tdep (void)
1532 gdbarch_register (bfd_arch_score
, score_gdbarch_init
, NULL
);