2 Copyright (C) 1988-2020 Free Software Foundation, Inc.
3 Contributed by C-SKY Microsystems and Mentor Graphics.
5 This file is part of the GNU opcodes library.
7 This library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 It is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
25 #include "bfd_stdint.h"
27 #include "disassemble.h"
29 #include "opcode/csky.h"
30 #include "libiberty.h"
32 #include "floatformat.h"
34 #define CSKY_INST_TYPE unsigned long
35 #define HAS_SUB_OPERAND (unsigned int)0xffffffff
36 #define CSKY_DEFAULT_ISA 0xffffffff
46 /* Mem to disassemble. */
48 /* Disassemble info. */
49 disassemble_info
*info
;
50 /* Opcode information. */
51 struct csky_opcode_info
const *opinfo
;
52 BFD_HOST_U_64_BIT isa
;
53 /* The value of operand to show. */
55 /* Whether to look up/print a symbol name. */
56 int need_output_symbol
;
60 enum sym_type last_type
;
62 bfd_vma last_map_addr
= 0;
64 /* Only for objdump tool. */
65 #define INIT_MACH_FLAG 0xffffffff
66 #define BINARY_MACH_FLAG 0x0
68 static unsigned int mach_flag
= INIT_MACH_FLAG
;
71 print_insn_data (bfd_vma pc ATTRIBUTE_UNUSED
,
72 struct disassemble_info
*info
,
75 switch (info
->bytes_per_chunk
)
78 info
->fprintf_func (info
->stream
, ".byte\t0x%02lx", given
);
81 info
->fprintf_func (info
->stream
, ".short\t0x%04lx", given
);
84 info
->fprintf_func (info
->stream
, ".long\t0x%08lx", given
);
92 get_sym_code_type (struct disassemble_info
*info
,
94 enum sym_type
*sym_type
)
97 name
= bfd_asymbol_name (info
->symtab
[n
]);
98 if (name
[0] == '$' && (name
[1] == 't' || name
[1] == 'd')
99 && (name
[2] == 0 || name
[2] == '.'))
101 *sym_type
= ((name
[1] == 't') ? CUR_TEXT
: CUR_DATA
);
108 csky_get_operand_mask (struct operand
const *oprnd
)
111 if (oprnd
->mask
== HAS_SUB_OPERAND
)
113 struct soperand
*sop
= (struct soperand
*)oprnd
;
114 mask
|= csky_get_operand_mask (&sop
->subs
[0]);
115 mask
|= csky_get_operand_mask (&sop
->subs
[1]);
122 csky_get_mask (struct csky_opcode_info
const *pinfo
)
127 if (pinfo
->operand_num
== -1)
128 mask
|= csky_get_operand_mask (&pinfo
->oprnd
.oprnds
[i
]);
130 for (; i
< pinfo
->operand_num
; i
++)
131 mask
|= csky_get_operand_mask (&pinfo
->oprnd
.oprnds
[i
]);
138 csky_chars_to_number (unsigned char * buf
, int n
)
141 unsigned int val
= 0;
143 if (dis_info
.info
->endian
== BFD_ENDIAN_BIG
)
144 for (i
= 0; i
< n
; i
++)
145 val
= val
<< 8 | buf
[i
];
147 for (i
= n
- 1; i
>= 0; i
--)
148 val
= val
<< 8 | buf
[i
];
152 static struct csky_opcode
const *g_opcodeP
;
154 static struct csky_opcode
const *
155 csky_find_inst_info (struct csky_opcode_info
const **pinfo
,
156 CSKY_INST_TYPE inst
, int length
)
160 struct csky_opcode
const *p
;
165 if (!(p
->isa_flag16
& dis_info
.isa
)
166 && !(p
->isa_flag32
& dis_info
.isa
))
172 /* Get the opcode mask. */
173 for (i
= 0; i
< OP_TABLE_NUM
; i
++)
176 mask
= csky_get_mask (&p
->op16
[i
]);
177 if (mask
!= 0 && (inst
& mask
) == p
->op16
[i
].opcode
)
179 *pinfo
= &p
->op16
[i
];
184 else if (length
== 4)
186 mask
= csky_get_mask (&p
->op32
[i
]);
188 && ((unsigned long)(inst
& mask
)
189 == (unsigned long)p
->op32
[i
].opcode
))
191 *pinfo
= &p
->op32
[i
];
203 is_extern_symbol (struct disassemble_info
*info
, int addr
)
205 unsigned int rel_count
= 0;
207 if (info
->section
== NULL
)
209 if ((info
->section
->flags
& SEC_RELOC
) != 0) /* Fit .o file. */
211 struct reloc_cache_entry
*pt
= info
->section
->relocation
;
212 for (; rel_count
< info
->section
->reloc_count
; rel_count
++, pt
++)
213 if ((long unsigned int)addr
== pt
->address
)
221 /* Suppress printing of mapping symbols emitted by the assembler to mark
222 the beginning of code and data sequences. */
225 csky_symbol_is_valid (asymbol
*sym
,
226 struct disassemble_info
*info ATTRIBUTE_UNUSED
)
232 name
= bfd_asymbol_name (sym
);
233 return name
&& *name
!= '$';
237 csky_get_disassembler (bfd
*abfd
)
240 const char *sec_name
= NULL
;
244 mach_flag
= elf_elfheader (abfd
)->e_flags
;
246 sec_name
= get_elf_backend_data (abfd
)->obj_attrs_section
;
247 /* Skip any input that hasn't attribute section.
248 This enables to link object files without attribute section with
250 if (bfd_get_section_by_name (abfd
, sec_name
) != NULL
)
252 attr
= elf_known_obj_attributes_proc (abfd
);
253 dis_info
.isa
= attr
[Tag_CSKY_ISA_EXT_FLAGS
].i
;
255 dis_info
.isa
|= attr
[Tag_CSKY_ISA_FLAGS
].i
;
258 dis_info
.isa
= CSKY_DEFAULT_ISA
;
260 return print_insn_csky
;
264 csky_output_operand (char *str
, struct operand
const *oprnd
,
265 CSKY_INST_TYPE inst
, int reloc ATTRIBUTE_UNUSED
)
271 int mask
= oprnd
->mask
;
275 /* Get operand value with mask. */
277 for (; mask
; mask
>>= 1, value
>>=1)
280 result
|= ((value
& 0x1) << bit
);
286 /* Here is general instructions that have no reloc. */
289 case OPRND_TYPE_CTRLREG
:
290 if (IS_CSKY_V1 (mach_flag
))
292 /* In V1 only cr0-cr12 have alias names. */
294 strcat (str
, csky_ctrl_regs
[value
].name
);
295 /* Others using crn(n > 12). */
296 else if (value
<= 30)
298 sprintf (buf
, "cr%d", (int)value
);
310 sprintf (buf
, "cr<%d, %d>", crx
, sel
);
314 case OPRND_TYPE_DUMMY_REG
:
315 mask
= dis_info
.opinfo
->oprnd
.oprnds
[0].mask
;
317 for (; mask
; mask
>>= 1, value
>>=1)
320 result
|= ((value
& 0x1) << bit
);
324 strcat (str
, csky_general_reg
[value
]);
326 case OPRND_TYPE_GREG0_7
:
327 case OPRND_TYPE_GREG0_15
:
328 case OPRND_TYPE_GREG16_31
:
329 case OPRND_TYPE_REGnsplr
:
330 case OPRND_TYPE_AREG
:
331 if (IS_CSKY_V2 (mach_flag
) && value
== 14)
334 strcat (str
, csky_general_reg
[value
]);
335 dis_info
.value
= value
;
337 case OPRND_TYPE_CPREG
:
338 strcat (str
, csky_cp_reg
[value
]);
340 case OPRND_TYPE_FREG
:
341 sprintf (buf
, "fr%d", (int)value
);
344 case OPRND_TYPE_VREG
:
345 sprintf (buf
, "vr%d", (int)value
);
348 case OPRND_TYPE_CPCREG
:
349 strcat (str
, csky_cp_creg
[value
]);
351 case OPRND_TYPE_CPIDX
:
352 strcat (str
, csky_cp_idx
[value
]);
354 case OPRND_TYPE_IMM2b_JMPIX
:
355 value
= (value
+ 2) << 3;
356 sprintf (buf
, "%d", (int)value
);
359 case OPRND_TYPE_IMM_LDST
:
360 case OPRND_TYPE_IMM_FLDST
:
361 value
<<= oprnd
->shift
;
362 sprintf (buf
, "0x%x", (unsigned int)value
);
365 case OPRND_TYPE_IMM7b_LS2
:
366 case OPRND_TYPE_IMM8b_LS2
:
367 sprintf (buf
, "%d", (int)(value
<< 2));
371 case OPRND_TYPE_IMM5b_BMASKI
:
372 if ((value
!= 0) && (value
> 31 || value
< 8))
377 sprintf (buf
, "%d", (int)value
);
381 case OPRND_TYPE_IMM5b_1_31
:
382 if (value
> 31 || value
< 1)
387 sprintf (buf
, "%d", (int)value
);
391 case OPRND_TYPE_IMM5b_7_31
:
392 if (value
> 31 || value
< 7)
397 sprintf (buf
, "%d", (int)value
);
401 case OPRND_TYPE_MSB2SIZE
:
402 case OPRND_TYPE_LSB2SIZE
:
405 if (oprnd
->type
== OPRND_TYPE_MSB2SIZE
)
409 str
[strlen (str
) - 2] = '\0';
410 sprintf (buf
, "%d, %d", (int)(size
+ value
), (int)value
);
415 case OPRND_TYPE_IMM1b
:
416 case OPRND_TYPE_IMM2b
:
417 case OPRND_TYPE_IMM4b
:
418 case OPRND_TYPE_IMM5b
:
419 case OPRND_TYPE_IMM7b
:
420 case OPRND_TYPE_IMM8b
:
421 case OPRND_TYPE_IMM12b
:
422 case OPRND_TYPE_IMM15b
:
423 case OPRND_TYPE_IMM16b
:
424 case OPRND_TYPE_IMM16b_MOVIH
:
425 case OPRND_TYPE_IMM16b_ORI
:
426 sprintf (buf
, "%d", (int)value
);
430 case OPRND_TYPE_OFF8b
:
431 case OPRND_TYPE_OFF16b
:
433 unsigned char ibytes
[4];
434 int shift
= oprnd
->shift
;
436 unsigned int mem_val
;
438 dis_info
.info
->stop_vma
= 0;
440 value
= ((dis_info
.mem
+ (value
<< shift
)
441 + ((IS_CSKY_V1 (mach_flag
)) ? 2 : 0))
443 status
= dis_info
.info
->read_memory_func (value
, ibytes
, 4,
447 dis_info
.info
->memory_error_func (status
, dis_info
.mem
,
451 mem_val
= csky_chars_to_number (ibytes
, 4);
452 /* Remove [] around literal value to match ABI syntax. */
453 sprintf (buf
, "0x%X", mem_val
);
455 /* For jmpi/jsri, we'll try to get a symbol for the target. */
456 if (dis_info
.info
->print_address_func
&& mem_val
!= 0)
458 dis_info
.value
= mem_val
;
459 dis_info
.need_output_symbol
= 1;
463 sprintf (buf
, "\t// from address pool at 0x%x",
464 (unsigned int)value
);
469 case OPRND_TYPE_BLOOP_OFF4b
:
470 case OPRND_TYPE_BLOOP_OFF12b
:
471 case OPRND_TYPE_OFF11b
:
472 case OPRND_TYPE_OFF16b_LSL1
:
473 case OPRND_TYPE_IMM_OFF18b
:
474 case OPRND_TYPE_OFF26b
:
476 int shift
= oprnd
->shift
;
477 if (value
& ((max
>> 1) + 1))
479 if (is_extern_symbol (dis_info
.info
, dis_info
.mem
))
481 else if (IS_CSKY_V1 (mach_flag
))
482 value
= dis_info
.mem
+ 2 + (value
<< shift
);
484 value
= dis_info
.mem
+ (value
<< shift
);
485 dis_info
.need_output_symbol
= 1;
486 dis_info
.value
= value
;
487 sprintf (buf
, "0x%x", (unsigned int)value
);
491 case OPRND_TYPE_CONSTANT
:
492 case OPRND_TYPE_FCONSTANT
:
494 int shift
= oprnd
->shift
;
500 dis_info
.info
->stop_vma
= 0;
503 if (IS_CSKY_V1 (mach_flag
))
504 addr
= (dis_info
.mem
+ 2 + value
) & 0xfffffffc;
506 addr
= (dis_info
.mem
+ value
) & 0xfffffffc;
508 if (oprnd
->type
== OPRND_TYPE_FCONSTANT
509 && dis_info
.opinfo
->opcode
!= CSKYV2_INST_FLRW
)
514 status
= dis_info
.info
->read_memory_func (addr
, (bfd_byte
*)ibytes
,
515 nbytes
, dis_info
.info
);
517 /* Address out of bounds. -> lrw rx, [pc, 0ffset]. */
518 sprintf (buf
, "[pc, %d]\t// from address pool at %x", (int)value
,
522 dis_info
.value
= addr
;
523 value
= csky_chars_to_number ((unsigned char *)ibytes
, 4);
526 if (oprnd
->type
== OPRND_TYPE_FCONSTANT
)
530 if (dis_info
.opinfo
->opcode
== CSKYV2_INST_FLRW
)
532 floatformat_to_double ((dis_info
.info
->endian
== BFD_ENDIAN_BIG
533 ? &floatformat_ieee_single_big
534 : &floatformat_ieee_single_little
),
537 floatformat_to_double ((dis_info
.info
->endian
== BFD_ENDIAN_BIG
538 ? &floatformat_ieee_double_big
539 : &floatformat_ieee_double_little
),
541 sprintf (buf
, "%f", f
);
545 dis_info
.need_output_symbol
= 1;
546 sprintf (buf
, "0x%x", (unsigned int)value
);
552 case OPRND_TYPE_ELRW_CONSTANT
:
554 int shift
= oprnd
->shift
;
558 dis_info
.info
->stop_vma
= 0;
560 value
= 0x80 + ((~value
) & 0x7f);
562 value
= value
<< shift
;
563 addr
= (dis_info
.mem
+ value
) & 0xfffffffc;
565 status
= dis_info
.info
->read_memory_func (addr
, (bfd_byte
*)ibytes
,
568 /* Address out of bounds. -> lrw rx, [pc, 0ffset]. */
569 sprintf (buf
, "[pc, %d]\t// from address pool at %x", (int) value
,
573 dis_info
.value
= addr
;
574 value
= csky_chars_to_number ((unsigned char *)ibytes
, 4);
575 dis_info
.need_output_symbol
= 1;
576 sprintf (buf
, "0x%x", (unsigned int)value
);
582 case OPRND_TYPE_SFLOAT
:
583 case OPRND_TYPE_DFLOAT
:
585 /* This is for fmovis/fmovid, which have an internal 13-bit
586 encoding that they convert to single/double precision
587 (respectively). We'll convert the 13-bit encoding to an IEEE
588 double and then to host double format to print it.
590 4-bit exponent: bits 19:16, biased by 11.
591 8-bit mantissa: split between 24:21 and 7:4. */
595 unsigned char valbytes
[8];
598 imm4
= ((inst
>> 16) & 0xf);
599 imm4
= (uint64_t)(1023 - (imm4
- 11)) << 52;
601 imm8
= (uint64_t)((inst
>> 4) & 0xf) << 44;
602 imm8
|= (uint64_t)((inst
>> 21) & 0xf) << 48;
604 dbnum
= (uint64_t)((inst
>> 20) & 1) << 63;
605 dbnum
|= imm4
| imm8
;
607 /* Do this a byte at a time so we don't have to
608 worry about the host's endianness. */
609 valbytes
[0] = dbnum
& 0xff;
610 valbytes
[1] = (dbnum
>> 8) & 0xff;
611 valbytes
[2] = (dbnum
>> 16) & 0xff;
612 valbytes
[3] = (dbnum
>> 24) & 0xff;
613 valbytes
[4] = (dbnum
>> 32) & 0xff;
614 valbytes
[5] = (dbnum
>> 40) & 0xff;
615 valbytes
[6] = (dbnum
>> 48) & 0xff;
616 valbytes
[7] = (dbnum
>> 56) & 0xff;
618 floatformat_to_double (&floatformat_ieee_double_little
, valbytes
,
621 sprintf (buf
, "%f", fvalue
);
625 case OPRND_TYPE_LABEL_WITH_BRACKET
:
626 sprintf (buf
, "[0x%x]", (unsigned int)value
);
628 strcat (str
, "\t// the offset is based on .data");
630 case OPRND_TYPE_OIMM3b
:
631 case OPRND_TYPE_OIMM4b
:
632 case OPRND_TYPE_OIMM5b
:
633 case OPRND_TYPE_OIMM5b_IDLY
:
634 case OPRND_TYPE_OIMM8b
:
635 case OPRND_TYPE_OIMM12b
:
636 case OPRND_TYPE_OIMM16b
:
637 case OPRND_TYPE_OIMM18b
:
639 sprintf (buf
, "%d", (int)value
);
642 case OPRND_TYPE_OIMM5b_BMASKI
:
643 if (value
> 32 || value
< 16)
648 sprintf (buf
, "%d", (int)(value
+ 1));
652 case OPRND_TYPE_FREGLIST_DASH
:
653 if (IS_CSKY_V2 (mach_flag
))
655 int vrx
= value
& 0xf;
656 int vry
= vrx
+ (value
>> 4);
657 sprintf (buf
, "fr%d-fr%d", vrx
, vry
);
661 case OPRND_TYPE_REGLIST_DASH
:
662 if (IS_CSKY_V1 (mach_flag
))
664 strcat (str
, csky_general_reg
[value
]);
665 strcat (str
, "-r15");
669 strcat (str
, csky_general_reg
[value
>> 5]);
671 strcat (str
, csky_general_reg
[(value
& 0x1f) + (value
>> 5)]);
674 case OPRND_TYPE_PSR_BITS_LIST
:
676 struct psrbit
const *bits
;
677 int first_oprnd
= TRUE
;
679 if (IS_CSKY_V1 (mach_flag
))
686 bits
= cskyv1_psr_bits
;
689 bits
= cskyv2_psr_bits
;
690 while (value
!= 0 && bits
[i
].name
!= NULL
)
692 if (value
& bits
[i
].value
)
696 strcat (str
, bits
[i
].name
);
697 value
&= ~bits
[i
].value
;
704 case OPRND_TYPE_REGbsp
:
705 if (IS_CSKY_V1 (mach_flag
))
706 strcat (str
, "(sp)");
708 strcat (str
, "(sp)");
710 case OPRND_TYPE_REGsp
:
711 if (IS_CSKY_V1 (mach_flag
))
716 case OPRND_TYPE_REGnr4_r7
:
717 case OPRND_TYPE_AREG_WITH_BRACKET
:
718 if (IS_CSKY_V1 (mach_flag
) && (value
< 4 || value
> 7))
721 strcat (str
, csky_general_reg
[value
]);
727 strcat (str
, csky_general_reg
[value
]);
731 case OPRND_TYPE_AREG_WITH_LSHIFT
:
732 strcat (str
, csky_general_reg
[value
>> 5]);
733 strcat (str
, " << ");
734 if ((value
& 0x1f) == 0x1)
736 else if ((value
& 0x1f) == 0x2)
738 else if ((value
& 0x1f) == 0x4)
740 else if ((value
& 0x1f) == 0x8)
743 case OPRND_TYPE_AREG_WITH_LSHIFT_FPU
:
744 strcat (str
, csky_general_reg
[value
>> 2]);
745 strcat (str
, " << ");
746 if ((value
& 0x3) == 0x0)
748 else if ((value
& 0x3) == 0x1)
750 else if ((value
& 0x3) == 0x2)
752 else if ((value
& 0x3) == 0x3)
755 case OPRND_TYPE_FREG_WITH_INDEX
:
757 unsigned freg_val
= value
& 0xf;
758 unsigned index_val
= (value
>> 4) & 0xf;
759 sprintf (buf
, "vr%d[%d]", freg_val
, index_val
);
763 case OPRND_TYPE_REGr4_r7
:
764 if (IS_CSKY_V1 (mach_flag
))
765 strcat (str
, "r4-r7");
767 case OPRND_TYPE_CONST1
:
770 case OPRND_TYPE_REG_r1a
:
771 case OPRND_TYPE_REG_r1b
:
774 case OPRND_TYPE_REG_r28
:
777 case OPRND_TYPE_REGLIST_DASH_COMMA
:
778 /* 16-bit reglist. */
782 if ((value
& 0xf) > 1)
785 strcat (str
, csky_general_reg
[(value
& 0xf) + 3]);
797 if (dis_info
.opinfo
->oprnd
.oprnds
[0].mask
!= OPRND_MASK_0_4
)
799 /* 32bits reglist. */
804 if ((value
& 0x7) > 1)
807 strcat (str
, csky_general_reg
[(value
& 0xf) + 15]);
817 case OPRND_TYPE_UNCOND10b
:
818 case OPRND_TYPE_UNCOND16b
:
819 case OPRND_TYPE_COND10b
:
820 case OPRND_TYPE_COND16b
:
822 int shift
= oprnd
->shift
;
824 if (value
& ((max
>> 1) + 1))
826 if (is_extern_symbol (dis_info
.info
, dis_info
.mem
))
829 value
= dis_info
.mem
+ (value
<< shift
);
830 sprintf (buf
, "0x%x", (unsigned int)value
);
832 dis_info
.need_output_symbol
= 1;
833 dis_info
.value
= value
;
845 csky_print_operand (char *str
, struct operand
const *oprnd
,
846 CSKY_INST_TYPE inst
, int reloc
)
851 if (oprnd
->mask
== HAS_SUB_OPERAND
)
853 struct soperand
*sop
= (struct soperand
*)oprnd
;
854 if (oprnd
->type
== OPRND_TYPE_BRACKET
)
859 else if (oprnd
->type
== OPRND_TYPE_ABRACKET
)
865 ret
= csky_print_operand (str
, &sop
->subs
[0], inst
, reloc
);
869 ret
= csky_print_operand (str
, &sop
->subs
[1], inst
, reloc
);
873 return csky_output_operand (str
, oprnd
, inst
, reloc
);
877 csky_print_operands (char *str
, struct csky_opcode_info
const *pinfo
,
878 struct disassemble_info
*info
, CSKY_INST_TYPE inst
,
883 if (pinfo
->operand_num
)
885 if (pinfo
->operand_num
== -1)
887 ret
= csky_print_operand (str
, &pinfo
->oprnd
.oprnds
[i
], inst
, reloc
);
892 for (; i
< pinfo
->operand_num
; i
++)
896 ret
= csky_print_operand (str
, &pinfo
->oprnd
.oprnds
[i
], inst
, reloc
);
900 info
->fprintf_func (info
->stream
, "%s", str
);
901 if (dis_info
.need_output_symbol
)
903 info
->fprintf_func (info
->stream
, "\t// ");
904 info
->print_address_func (dis_info
.value
, dis_info
.info
);
910 number_to_chars_littleendian (char *buf
, CSKY_INST_TYPE val
, int n
)
921 #define CSKY_READ_DATA() \
923 status = info->read_memory_func (memaddr, buf, 2, info); \
926 info->memory_error_func (status, memaddr, info); \
929 if (info->endian == BFD_ENDIAN_BIG) \
930 inst |= (buf[0] << 8) | buf[1]; \
931 else if (info->endian == BFD_ENDIAN_LITTLE) \
932 inst |= (buf[1] << 8) | buf[0]; \
935 info->bytes_per_chunk += 2; \
940 print_insn_csky (bfd_vma memaddr
, struct disassemble_info
*info
)
942 unsigned char buf
[4];
943 CSKY_INST_TYPE inst
= 0;
948 void (*printer
) (bfd_vma
, struct disassemble_info
*, long);
949 unsigned int size
= 4;
951 memset (str
, 0, sizeof (str
));
952 info
->bytes_per_chunk
= 0;
953 info
->bytes_per_chunk
= 0;
954 dis_info
.mem
= memaddr
;
955 dis_info
.info
= info
;
956 dis_info
.need_output_symbol
= 0;
957 if (mach_flag
!= INIT_MACH_FLAG
&& mach_flag
!= BINARY_MACH_FLAG
)
958 info
->mach
= mach_flag
;
959 else if (mach_flag
== INIT_MACH_FLAG
)
961 mach_flag
= info
->mach
;
962 dis_info
.isa
= CSKY_DEFAULT_ISA
;
965 if (mach_flag
== BINARY_MACH_FLAG
&& info
->endian
== BFD_ENDIAN_UNKNOWN
)
967 info
->endian
= BFD_ENDIAN_LITTLE
;
968 dis_info
.isa
= CSKY_DEFAULT_ISA
;
971 /* First check the full symtab for a mapping symbol, even if there
972 are no usable non-mapping symbols for this address. */
973 if (info
->symtab_size
!= 0
974 && bfd_asymbol_flavour (*info
->symtab
) == bfd_target_elf_flavour
)
979 enum sym_type type
= CUR_TEXT
;
981 if (memaddr
<= last_map_addr
)
983 /* Start scanning at the start of the function, or wherever
984 we finished last time. */
986 if (n
< last_map_sym
)
989 /* Scan up to the location being disassembled. */
990 for (; n
< info
->symtab_size
; n
++)
992 addr
= bfd_asymbol_value (info
->symtab
[n
]);
995 if ((info
->section
== NULL
996 || info
->section
== info
->symtab
[n
]->section
)
997 && get_sym_code_type (info
, n
, &type
))
1000 last_map_sym
= last_sym
;
1002 is_data
= (last_type
== CUR_DATA
);
1005 size
= 4 - ( memaddr
& 3);
1006 for (n
= last_sym
+ 1; n
< info
->symtab_size
; n
++)
1008 addr
= bfd_asymbol_value (info
->symtab
[n
]);
1011 if (addr
- memaddr
< size
)
1012 size
= addr
- memaddr
;
1016 /* If the next symbol is after three bytes, we need to
1017 print only part of the data, so that we can use either
1020 size
= (memaddr
& 1) ? 1 : 2;
1023 info
->bytes_per_line
= 4;
1029 /* Size was already set above. */
1030 info
->bytes_per_chunk
= size
;
1031 printer
= print_insn_data
;
1033 status
= info
->read_memory_func (memaddr
, (bfd_byte
*) buf
, size
, info
);
1035 if (info
->endian
== BFD_ENDIAN_LITTLE
)
1036 for (i
= size
- 1; i
>= 0; i
--)
1037 given
= buf
[i
] | (given
<< 8);
1039 for (i
= 0; i
< (int) size
; i
++)
1040 given
= buf
[i
] | (given
<< 8);
1042 printer (memaddr
, info
, given
);
1043 return info
->bytes_per_chunk
;
1046 /* Handle instructions. */
1048 if ((inst
& 0xc000) == 0xc000 && IS_CSKY_V2 (mach_flag
))
1050 /* It's a 32-bit instruction. */
1053 if (info
->buffer
&& (info
->endian
== BFD_ENDIAN_LITTLE
))
1055 char* src
= (char *)(info
->buffer
1056 + ((memaddr
- 4 - info
->buffer_vma
)
1057 * info
->octets_per_byte
));
1058 if (info
->endian
== BFD_ENDIAN_LITTLE
)
1059 number_to_chars_littleendian (src
, inst
, 4);
1063 if (IS_CSKY_V1 (mach_flag
))
1064 g_opcodeP
= csky_v1_opcodes
;
1066 g_opcodeP
= csky_v2_opcodes
;
1070 struct csky_opcode
const *op
;
1071 struct csky_opcode_info
const *pinfo
= NULL
;
1074 memset (str
, 0, sizeof (str
));
1075 op
= csky_find_inst_info (&pinfo
, inst
, info
->bytes_per_chunk
);
1078 if (IS_CSKY_V1 (mach_flag
))
1079 info
->fprintf_func (info
->stream
, ".short: 0x%04x",
1080 (unsigned short)inst
);
1082 info
->fprintf_func (info
->stream
, ".long: 0x%08x",
1083 (unsigned int)inst
);
1084 return info
->bytes_per_chunk
;
1087 if (info
->bytes_per_chunk
== 2)
1088 reloc
= op
->reloc16
;
1090 reloc
= op
->reloc32
;
1091 dis_info
.opinfo
= pinfo
;
1092 strcat (str
, op
->mnemonic
);
1094 if (csky_print_operands (str
, pinfo
, info
, inst
, reloc
))
1100 return info
->bytes_per_chunk
;