xref: /openbmc/qemu/include/disas/dis-asm.h (revision 44c7197f)
1 /* Interface between the opcode library and its callers.
2    Written by Cygnus Support, 1993.
3 
4    The opcode library (libopcodes.a) provides instruction decoders for
5    a large variety of instruction sets, callable with an identical
6    interface, for making instruction-processing programs more independent
7    of the instruction set being processed.  */
8 
9 #ifndef DISAS_DIS_ASM_H
10 #define DISAS_DIS_ASM_H
11 
12 typedef void *PTR;
13 typedef uint64_t bfd_vma;
14 typedef int64_t bfd_signed_vma;
15 typedef uint8_t bfd_byte;
16 #define sprintf_vma(s,x) sprintf (s, "%0" PRIx64, x)
17 #define snprintf_vma(s,ss,x) snprintf (s, ss, "%0" PRIx64, x)
18 
19 #define BFD64
20 
21 enum bfd_flavour {
22   bfd_target_unknown_flavour,
23   bfd_target_aout_flavour,
24   bfd_target_coff_flavour,
25   bfd_target_ecoff_flavour,
26   bfd_target_elf_flavour,
27   bfd_target_ieee_flavour,
28   bfd_target_nlm_flavour,
29   bfd_target_oasys_flavour,
30   bfd_target_tekhex_flavour,
31   bfd_target_srec_flavour,
32   bfd_target_ihex_flavour,
33   bfd_target_som_flavour,
34   bfd_target_os9k_flavour,
35   bfd_target_versados_flavour,
36   bfd_target_msdos_flavour,
37   bfd_target_evax_flavour
38 };
39 
40 enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
41 
42 enum bfd_architecture
43 {
44   bfd_arch_unknown,    /* File arch not known */
45   bfd_arch_obscure,    /* Arch known, not one of these */
46   bfd_arch_m68k,       /* Motorola 68xxx */
47 #define bfd_mach_m68000 1
48 #define bfd_mach_m68008 2
49 #define bfd_mach_m68010 3
50 #define bfd_mach_m68020 4
51 #define bfd_mach_m68030 5
52 #define bfd_mach_m68040 6
53 #define bfd_mach_m68060 7
54 #define bfd_mach_cpu32  8
55 #define bfd_mach_mcf5200  9
56 #define bfd_mach_mcf5206e 10
57 #define bfd_mach_mcf5307  11
58 #define bfd_mach_mcf5407  12
59 #define bfd_mach_mcf528x  13
60 #define bfd_mach_mcfv4e   14
61 #define bfd_mach_mcf521x   15
62 #define bfd_mach_mcf5249   16
63 #define bfd_mach_mcf547x   17
64 #define bfd_mach_mcf548x   18
65   bfd_arch_vax,        /* DEC Vax */
66   bfd_arch_i960,       /* Intel 960 */
67      /* The order of the following is important.
68        lower number indicates a machine type that
69        only accepts a subset of the instructions
70        available to machines with higher numbers.
71        The exception is the "ca", which is
72        incompatible with all other machines except
73        "core". */
74 
75 #define bfd_mach_i960_core      1
76 #define bfd_mach_i960_ka_sa     2
77 #define bfd_mach_i960_kb_sb     3
78 #define bfd_mach_i960_mc        4
79 #define bfd_mach_i960_xa        5
80 #define bfd_mach_i960_ca        6
81 #define bfd_mach_i960_jx        7
82 #define bfd_mach_i960_hx        8
83 
84   bfd_arch_a29k,       /* AMD 29000 */
85   bfd_arch_sparc,      /* SPARC */
86 #define bfd_mach_sparc                 1
87 /* The difference between v8plus and v9 is that v9 is a true 64 bit env.  */
88 #define bfd_mach_sparc_sparclet        2
89 #define bfd_mach_sparc_sparclite       3
90 #define bfd_mach_sparc_v8plus          4
91 #define bfd_mach_sparc_v8plusa         5 /* with ultrasparc add'ns.  */
92 #define bfd_mach_sparc_sparclite_le    6
93 #define bfd_mach_sparc_v9              7
94 #define bfd_mach_sparc_v9a             8 /* with ultrasparc add'ns.  */
95 #define bfd_mach_sparc_v8plusb         9 /* with cheetah add'ns.  */
96 #define bfd_mach_sparc_v9b             10 /* with cheetah add'ns.  */
97 /* Nonzero if MACH has the v9 instruction set.  */
98 #define bfd_mach_sparc_v9_p(mach) \
99   ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
100    && (mach) != bfd_mach_sparc_sparclite_le)
101   bfd_arch_mips,       /* MIPS Rxxxx */
102 #define bfd_mach_mips3000              3000
103 #define bfd_mach_mips3900              3900
104 #define bfd_mach_mips4000              4000
105 #define bfd_mach_mips4010              4010
106 #define bfd_mach_mips4100              4100
107 #define bfd_mach_mips4300              4300
108 #define bfd_mach_mips4400              4400
109 #define bfd_mach_mips4600              4600
110 #define bfd_mach_mips4650              4650
111 #define bfd_mach_mips5000              5000
112 #define bfd_mach_mips6000              6000
113 #define bfd_mach_mips8000              8000
114 #define bfd_mach_mips10000             10000
115 #define bfd_mach_mips16                16
116   bfd_arch_i386,       /* Intel 386 */
117 #define bfd_mach_i386_i386 0
118 #define bfd_mach_i386_i8086 1
119 #define bfd_mach_i386_i386_intel_syntax 2
120 #define bfd_mach_x86_64 3
121 #define bfd_mach_x86_64_intel_syntax 4
122   bfd_arch_we32k,      /* AT&T WE32xxx */
123   bfd_arch_tahoe,      /* CCI/Harris Tahoe */
124   bfd_arch_i860,       /* Intel 860 */
125   bfd_arch_romp,       /* IBM ROMP PC/RT */
126   bfd_arch_alliant,    /* Alliant */
127   bfd_arch_convex,     /* Convex */
128   bfd_arch_m88k,       /* Motorola 88xxx */
129   bfd_arch_pyramid,    /* Pyramid Technology */
130   bfd_arch_h8300,      /* Hitachi H8/300 */
131 #define bfd_mach_h8300   1
132 #define bfd_mach_h8300h  2
133 #define bfd_mach_h8300s  3
134   bfd_arch_powerpc,    /* PowerPC */
135 #define bfd_mach_ppc           0
136 #define bfd_mach_ppc64         1
137 #define bfd_mach_ppc_403       403
138 #define bfd_mach_ppc_403gc     4030
139 #define bfd_mach_ppc_e500      500
140 #define bfd_mach_ppc_505       505
141 #define bfd_mach_ppc_601       601
142 #define bfd_mach_ppc_602       602
143 #define bfd_mach_ppc_603       603
144 #define bfd_mach_ppc_ec603e    6031
145 #define bfd_mach_ppc_604       604
146 #define bfd_mach_ppc_620       620
147 #define bfd_mach_ppc_630       630
148 #define bfd_mach_ppc_750       750
149 #define bfd_mach_ppc_860       860
150 #define bfd_mach_ppc_a35       35
151 #define bfd_mach_ppc_rs64ii    642
152 #define bfd_mach_ppc_rs64iii   643
153 #define bfd_mach_ppc_7400      7400
154   bfd_arch_rs6000,     /* IBM RS/6000 */
155   bfd_arch_hppa,       /* HP PA RISC */
156 #define bfd_mach_hppa10        10
157 #define bfd_mach_hppa11        11
158 #define bfd_mach_hppa20        20
159 #define bfd_mach_hppa20w       25
160   bfd_arch_d10v,       /* Mitsubishi D10V */
161   bfd_arch_z8k,        /* Zilog Z8000 */
162 #define bfd_mach_z8001         1
163 #define bfd_mach_z8002         2
164   bfd_arch_h8500,      /* Hitachi H8/500 */
165   bfd_arch_sh,         /* Hitachi SH */
166 #define bfd_mach_sh            1
167 #define bfd_mach_sh2        0x20
168 #define bfd_mach_sh_dsp     0x2d
169 #define bfd_mach_sh2a       0x2a
170 #define bfd_mach_sh2a_nofpu 0x2b
171 #define bfd_mach_sh2e       0x2e
172 #define bfd_mach_sh3        0x30
173 #define bfd_mach_sh3_nommu  0x31
174 #define bfd_mach_sh3_dsp    0x3d
175 #define bfd_mach_sh3e       0x3e
176 #define bfd_mach_sh4        0x40
177 #define bfd_mach_sh4_nofpu  0x41
178 #define bfd_mach_sh4_nommu_nofpu  0x42
179 #define bfd_mach_sh4a       0x4a
180 #define bfd_mach_sh4a_nofpu 0x4b
181 #define bfd_mach_sh4al_dsp  0x4d
182 #define bfd_mach_sh5        0x50
183   bfd_arch_alpha,      /* Dec Alpha */
184 #define bfd_mach_alpha 1
185 #define bfd_mach_alpha_ev4  0x10
186 #define bfd_mach_alpha_ev5  0x20
187 #define bfd_mach_alpha_ev6  0x30
188   bfd_arch_arm,        /* Advanced Risc Machines ARM */
189 #define bfd_mach_arm_unknown	0
190 #define bfd_mach_arm_2		1
191 #define bfd_mach_arm_2a		2
192 #define bfd_mach_arm_3		3
193 #define bfd_mach_arm_3M 	4
194 #define bfd_mach_arm_4 		5
195 #define bfd_mach_arm_4T 	6
196 #define bfd_mach_arm_5 		7
197 #define bfd_mach_arm_5T		8
198 #define bfd_mach_arm_5TE	9
199 #define bfd_mach_arm_XScale	10
200 #define bfd_mach_arm_ep9312	11
201 #define bfd_mach_arm_iWMMXt	12
202 #define bfd_mach_arm_iWMMXt2	13
203   bfd_arch_ns32k,      /* National Semiconductors ns32000 */
204   bfd_arch_w65,        /* WDC 65816 */
205   bfd_arch_tic30,      /* Texas Instruments TMS320C30 */
206   bfd_arch_v850,       /* NEC V850 */
207 #define bfd_mach_v850          0
208   bfd_arch_arc,        /* Argonaut RISC Core */
209 #define bfd_mach_arc_base 0
210   bfd_arch_m32r,       /* Mitsubishi M32R/D */
211 #define bfd_mach_m32r          0  /* backwards compatibility */
212   bfd_arch_mn10200,    /* Matsushita MN10200 */
213   bfd_arch_mn10300,    /* Matsushita MN10300 */
214   bfd_arch_avr,        /* AVR microcontrollers */
215 #define bfd_mach_avr1       1
216 #define bfd_mach_avr2       2
217 #define bfd_mach_avr25      25
218 #define bfd_mach_avr3       3
219 #define bfd_mach_avr31      31
220 #define bfd_mach_avr35      35
221 #define bfd_mach_avr4       4
222 #define bfd_mach_avr5       5
223 #define bfd_mach_avr51      51
224 #define bfd_mach_avr6       6
225 #define bfd_mach_avrtiny    100
226 #define bfd_mach_avrxmega1  101
227 #define bfd_mach_avrxmega2  102
228 #define bfd_mach_avrxmega3  103
229 #define bfd_mach_avrxmega4  104
230 #define bfd_mach_avrxmega5  105
231 #define bfd_mach_avrxmega6  106
232 #define bfd_mach_avrxmega7  107
233   bfd_arch_cris,       /* Axis CRIS */
234 #define bfd_mach_cris_v0_v10   255
235 #define bfd_mach_cris_v32      32
236 #define bfd_mach_cris_v10_v32  1032
237   bfd_arch_microblaze, /* Xilinx MicroBlaze.  */
238   bfd_arch_moxie,      /* The Moxie core.  */
239   bfd_arch_ia64,      /* HP/Intel ia64 */
240 #define bfd_mach_ia64_elf64    64
241 #define bfd_mach_ia64_elf32    32
242   bfd_arch_nios2,	/* Nios II */
243 #define bfd_mach_nios2          0
244 #define bfd_mach_nios2r1        1
245 #define bfd_mach_nios2r2        2
246   bfd_arch_lm32,       /* Lattice Mico32 */
247 #define bfd_mach_lm32 1
248   bfd_arch_rx,       /* Renesas RX */
249 #define bfd_mach_rx            0x75
250 #define bfd_mach_rx_v2         0x76
251 #define bfd_mach_rx_v3         0x77
252   bfd_arch_last
253   };
254 #define bfd_mach_s390_31 31
255 #define bfd_mach_s390_64 64
256 
257 typedef struct symbol_cache_entry
258 {
259     const char *name;
260     union
261     {
262         PTR p;
263         bfd_vma i;
264     } udata;
265 } asymbol;
266 
267 typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
268     GCC_FMT_ATTR(2, 3);
269 
270 enum dis_insn_type {
271   dis_noninsn,			/* Not a valid instruction */
272   dis_nonbranch,		/* Not a branch instruction */
273   dis_branch,			/* Unconditional branch */
274   dis_condbranch,		/* Conditional branch */
275   dis_jsr,			/* Jump to subroutine */
276   dis_condjsr,			/* Conditional jump to subroutine */
277   dis_dref,			/* Data reference instruction */
278   dis_dref2			/* Two data references in instruction */
279 };
280 
281 /* This struct is passed into the instruction decoding routine,
282    and is passed back out into each callback.  The various fields are used
283    for conveying information from your main routine into your callbacks,
284    for passing information into the instruction decoders (such as the
285    addresses of the callback functions), or for passing information
286    back from the instruction decoders to their callers.
287 
288    It must be initialized before it is first passed; this can be done
289    by hand, or using one of the initialization macros below.  */
290 
291 typedef struct disassemble_info {
292   fprintf_function fprintf_func;
293   FILE *stream;
294   PTR application_data;
295 
296   /* Target description.  We could replace this with a pointer to the bfd,
297      but that would require one.  There currently isn't any such requirement
298      so to avoid introducing one we record these explicitly.  */
299   /* The bfd_flavour.  This can be bfd_target_unknown_flavour.  */
300   enum bfd_flavour flavour;
301   /* The bfd_arch value.  */
302   enum bfd_architecture arch;
303   /* The bfd_mach value.  */
304   unsigned long mach;
305   /* Endianness (for bi-endian cpus).  Mono-endian cpus can ignore this.  */
306   enum bfd_endian endian;
307 
308   /* An array of pointers to symbols either at the location being disassembled
309      or at the start of the function being disassembled.  The array is sorted
310      so that the first symbol is intended to be the one used.  The others are
311      present for any misc. purposes.  This is not set reliably, but if it is
312      not NULL, it is correct.  */
313   asymbol **symbols;
314   /* Number of symbols in array.  */
315   int num_symbols;
316 
317   /* For use by the disassembler.
318      The top 16 bits are reserved for public use (and are documented here).
319      The bottom 16 bits are for the internal use of the disassembler.  */
320   unsigned long flags;
321 #define INSN_HAS_RELOC	0x80000000
322 #define INSN_ARM_BE32	0x00010000
323   PTR private_data;
324 
325   /* Function used to get bytes to disassemble.  MEMADDR is the
326      address of the stuff to be disassembled, MYADDR is the address to
327      put the bytes in, and LENGTH is the number of bytes to read.
328      INFO is a pointer to this struct.
329      Returns an errno value or 0 for success.  */
330   int (*read_memory_func)
331     (bfd_vma memaddr, bfd_byte *myaddr, int length,
332 	     struct disassemble_info *info);
333 
334   /* Function which should be called if we get an error that we can't
335      recover from.  STATUS is the errno value from read_memory_func and
336      MEMADDR is the address that we were trying to read.  INFO is a
337      pointer to this struct.  */
338   void (*memory_error_func)
339     (int status, bfd_vma memaddr, struct disassemble_info *info);
340 
341   /* Function called to print ADDR.  */
342   void (*print_address_func)
343     (bfd_vma addr, struct disassemble_info *info);
344 
345     /* Function called to print an instruction. The function is architecture
346      * specific.
347      */
348     int (*print_insn)(bfd_vma addr, struct disassemble_info *info);
349 
350   /* Function called to determine if there is a symbol at the given ADDR.
351      If there is, the function returns 1, otherwise it returns 0.
352      This is used by ports which support an overlay manager where
353      the overlay number is held in the top part of an address.  In
354      some circumstances we want to include the overlay number in the
355      address, (normally because there is a symbol associated with
356      that address), but sometimes we want to mask out the overlay bits.  */
357   int (* symbol_at_address_func)
358     (bfd_vma addr, struct disassemble_info * info);
359 
360   /* These are for buffer_read_memory.  */
361   const bfd_byte *buffer;
362   bfd_vma buffer_vma;
363   int buffer_length;
364 
365   /* This variable may be set by the instruction decoder.  It suggests
366       the number of bytes objdump should display on a single line.  If
367       the instruction decoder sets this, it should always set it to
368       the same value in order to get reasonable looking output.  */
369   int bytes_per_line;
370 
371   /* the next two variables control the way objdump displays the raw data */
372   /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
373   /* output will look like this:
374      00:   00000000 00000000
375      with the chunks displayed according to "display_endian". */
376   int bytes_per_chunk;
377   enum bfd_endian display_endian;
378 
379   /* Results from instruction decoders.  Not all decoders yet support
380      this information.  This info is set each time an instruction is
381      decoded, and is only valid for the last such instruction.
382 
383      To determine whether this decoder supports this information, set
384      insn_info_valid to 0, decode an instruction, then check it.  */
385 
386   char insn_info_valid;		/* Branch info has been set. */
387   char branch_delay_insns;	/* How many sequential insn's will run before
388 				   a branch takes effect.  (0 = normal) */
389   char data_size;		/* Size of data reference in insn, in bytes */
390   enum dis_insn_type insn_type;	/* Type of instruction */
391   bfd_vma target;		/* Target address of branch or dref, if known;
392 				   zero if unknown.  */
393   bfd_vma target2;		/* Second target address for dref2 */
394 
395   /* Command line options specific to the target disassembler.  */
396   char * disassembler_options;
397 
398   /* Field intended to be used by targets in any way they deem suitable.  */
399   int64_t target_info;
400 
401   /* Options for Capstone disassembly.  */
402   int cap_arch;
403   int cap_mode;
404   int cap_insn_unit;
405   int cap_insn_split;
406 
407 } disassemble_info;
408 
409 /* Standard disassemblers.  Disassemble one instruction at the given
410    target address.  Return number of bytes processed.  */
411 typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
412 
413 int print_insn_tci(bfd_vma, disassemble_info*);
414 int print_insn_big_mips         (bfd_vma, disassemble_info*);
415 int print_insn_little_mips      (bfd_vma, disassemble_info*);
416 int print_insn_nanomips         (bfd_vma, disassemble_info*);
417 int print_insn_i386             (bfd_vma, disassemble_info*);
418 int print_insn_m68k             (bfd_vma, disassemble_info*);
419 int print_insn_z8001            (bfd_vma, disassemble_info*);
420 int print_insn_z8002            (bfd_vma, disassemble_info*);
421 int print_insn_h8300            (bfd_vma, disassemble_info*);
422 int print_insn_h8300h           (bfd_vma, disassemble_info*);
423 int print_insn_h8300s           (bfd_vma, disassemble_info*);
424 int print_insn_h8500            (bfd_vma, disassemble_info*);
425 int print_insn_arm_a64          (bfd_vma, disassemble_info*);
426 int print_insn_alpha            (bfd_vma, disassemble_info*);
427 disassembler_ftype arc_get_disassembler (int, int);
428 int print_insn_arm              (bfd_vma, disassemble_info*);
429 int print_insn_sparc            (bfd_vma, disassemble_info*);
430 int print_insn_big_a29k         (bfd_vma, disassemble_info*);
431 int print_insn_little_a29k      (bfd_vma, disassemble_info*);
432 int print_insn_i960             (bfd_vma, disassemble_info*);
433 int print_insn_sh               (bfd_vma, disassemble_info*);
434 int print_insn_shl              (bfd_vma, disassemble_info*);
435 int print_insn_hppa             (bfd_vma, disassemble_info*);
436 int print_insn_m32r             (bfd_vma, disassemble_info*);
437 int print_insn_m88k             (bfd_vma, disassemble_info*);
438 int print_insn_mn10200          (bfd_vma, disassemble_info*);
439 int print_insn_mn10300          (bfd_vma, disassemble_info*);
440 int print_insn_moxie            (bfd_vma, disassemble_info*);
441 int print_insn_ns32k            (bfd_vma, disassemble_info*);
442 int print_insn_big_powerpc      (bfd_vma, disassemble_info*);
443 int print_insn_little_powerpc   (bfd_vma, disassemble_info*);
444 int print_insn_rs6000           (bfd_vma, disassemble_info*);
445 int print_insn_w65              (bfd_vma, disassemble_info*);
446 int print_insn_d10v             (bfd_vma, disassemble_info*);
447 int print_insn_v850             (bfd_vma, disassemble_info*);
448 int print_insn_tic30            (bfd_vma, disassemble_info*);
449 int print_insn_ppc              (bfd_vma, disassemble_info*);
450 int print_insn_s390             (bfd_vma, disassemble_info*);
451 int print_insn_crisv32          (bfd_vma, disassemble_info*);
452 int print_insn_crisv10          (bfd_vma, disassemble_info*);
453 int print_insn_microblaze       (bfd_vma, disassemble_info*);
454 int print_insn_ia64             (bfd_vma, disassemble_info*);
455 int print_insn_lm32             (bfd_vma, disassemble_info*);
456 int print_insn_big_nios2        (bfd_vma, disassemble_info*);
457 int print_insn_little_nios2     (bfd_vma, disassemble_info*);
458 int print_insn_xtensa           (bfd_vma, disassemble_info*);
459 int print_insn_riscv32          (bfd_vma, disassemble_info*);
460 int print_insn_riscv64          (bfd_vma, disassemble_info*);
461 int print_insn_rx(bfd_vma, disassemble_info *);
462 
463 #ifdef CONFIG_CAPSTONE
464 bool cap_disas_target(disassemble_info *info, uint64_t pc, size_t size);
465 bool cap_disas_host(disassemble_info *info, const void *code, size_t size);
466 bool cap_disas_monitor(disassemble_info *info, uint64_t pc, int count);
467 bool cap_disas_plugin(disassemble_info *info, uint64_t pc, size_t size);
468 #else
469 # define cap_disas_target(i, p, s)  false
470 # define cap_disas_host(i, p, s)    false
471 # define cap_disas_monitor(i, p, c) false
472 # define cap_disas_plugin(i, p, c)  false
473 #endif /* CONFIG_CAPSTONE */
474 
475 #ifndef ATTRIBUTE_UNUSED
476 #define ATTRIBUTE_UNUSED __attribute__((unused))
477 #endif
478 
479 /* from libbfd */
480 
481 #include "qemu/bswap.h"
482 
483 static inline bfd_vma bfd_getl64(const bfd_byte *addr)
484 {
485     return ldq_le_p(addr);
486 }
487 
488 static inline bfd_vma bfd_getl32(const bfd_byte *addr)
489 {
490     return (uint32_t)ldl_le_p(addr);
491 }
492 
493 static inline bfd_vma bfd_getl16(const bfd_byte *addr)
494 {
495     return lduw_le_p(addr);
496 }
497 
498 static inline bfd_vma bfd_getb32(const bfd_byte *addr)
499 {
500     return (uint32_t)ldl_be_p(addr);
501 }
502 
503 static inline bfd_vma bfd_getb16(const bfd_byte *addr)
504 {
505     return lduw_be_p(addr);
506 }
507 
508 typedef bool bfd_boolean;
509 
510 #endif /* DISAS_DIS_ASM_H */
511