tcg/tcg.h

   1 /*
   2  * Tiny Code Generator for QEMU
   3  *
   4  * Copyright (c) 2008 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #ifndef TCG_H
  26 #define TCG_H
  27
  28 #include "qemu-common.h"
  29 #include "cpu.h"
  30 #include "exec/tb-context.h"
  31 #include "qemu/bitops.h"
  32 #include "tcg-target.h"
  33
  34 /* XXX: make safe guess about sizes */
  35 #define MAX_OP_PER_INSTR 266
  36
  37 #if HOST_LONG_BITS == 32
  38 #define MAX_OPC_PARAM_PER_ARG 2
  39 #else
  40 #define MAX_OPC_PARAM_PER_ARG 1
  41 #endif
  42 #define MAX_OPC_PARAM_IARGS 5
  43 #define MAX_OPC_PARAM_OARGS 1
  44 #define MAX_OPC_PARAM_ARGS (MAX_OPC_PARAM_IARGS + MAX_OPC_PARAM_OARGS)
  45
  46 /* A Call op needs up to 4 + 2N parameters on 32-bit archs,
  47  * and up to 4 + N parameters on 64-bit archs
  48  * (N = number of input arguments + output arguments).  */
  49 #define MAX_OPC_PARAM (4 + (MAX_OPC_PARAM_PER_ARG * MAX_OPC_PARAM_ARGS))
  50 #define OPC_BUF_SIZE 640
  51 #define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR)
  52
  53 #define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * MAX_OPC_PARAM)
  54
  55 #define CPU_TEMP_BUF_NLONGS 128
  56
  57 /* Default target word size to pointer size.  */
  58 #ifndef TCG_TARGET_REG_BITS
  59 # if UINTPTR_MAX == UINT32_MAX
  60 #  define TCG_TARGET_REG_BITS 32
  61 # elif UINTPTR_MAX == UINT64_MAX
  62 #  define TCG_TARGET_REG_BITS 64
  63 # else
  64 #  error Unknown pointer size for tcg target
  65 # endif
  66 #endif
  67
  68 #if TCG_TARGET_REG_BITS == 32
  69 typedef int32_t tcg_target_long;
  70 typedef uint32_t tcg_target_ulong;
  71 #define TCG_PRIlx PRIx32
  72 #define TCG_PRIld PRId32
  73 #elif TCG_TARGET_REG_BITS == 64
  74 typedef int64_t tcg_target_long;
  75 typedef uint64_t tcg_target_ulong;
  76 #define TCG_PRIlx PRIx64
  77 #define TCG_PRIld PRId64
  78 #else
  79 #error unsupported
  80 #endif
  81
  82 #if TCG_TARGET_NB_REGS <= 32
  83 typedef uint32_t TCGRegSet;
  84 #elif TCG_TARGET_NB_REGS <= 64
  85 typedef uint64_t TCGRegSet;
  86 #else
  87 #error unsupported
  88 #endif
  89
  90 #if TCG_TARGET_REG_BITS == 32
  91 /* Turn some undef macros into false macros.  */
  92 #define TCG_TARGET_HAS_extrl_i64_i32    0
  93 #define TCG_TARGET_HAS_extrh_i64_i32    0
  94 #define TCG_TARGET_HAS_div_i64          0
  95 #define TCG_TARGET_HAS_rem_i64          0
  96 #define TCG_TARGET_HAS_div2_i64         0
  97 #define TCG_TARGET_HAS_rot_i64          0
  98 #define TCG_TARGET_HAS_ext8s_i64        0
  99 #define TCG_TARGET_HAS_ext16s_i64       0
 100 #define TCG_TARGET_HAS_ext32s_i64       0
 101 #define TCG_TARGET_HAS_ext8u_i64        0
 102 #define TCG_TARGET_HAS_ext16u_i64       0
 103 #define TCG_TARGET_HAS_ext32u_i64       0
 104 #define TCG_TARGET_HAS_bswap16_i64      0
 105 #define TCG_TARGET_HAS_bswap32_i64      0
 106 #define TCG_TARGET_HAS_bswap64_i64      0
 107 #define TCG_TARGET_HAS_neg_i64          0
 108 #define TCG_TARGET_HAS_not_i64          0
 109 #define TCG_TARGET_HAS_andc_i64         0
 110 #define TCG_TARGET_HAS_orc_i64          0
 111 #define TCG_TARGET_HAS_eqv_i64          0
 112 #define TCG_TARGET_HAS_nand_i64         0
 113 #define TCG_TARGET_HAS_nor_i64          0
 114 #define TCG_TARGET_HAS_deposit_i64      0
 115 #define TCG_TARGET_HAS_movcond_i64      0
 116 #define TCG_TARGET_HAS_add2_i64         0
 117 #define TCG_TARGET_HAS_sub2_i64         0
 118 #define TCG_TARGET_HAS_mulu2_i64        0
 119 #define TCG_TARGET_HAS_muls2_i64        0
 120 #define TCG_TARGET_HAS_muluh_i64        0
 121 #define TCG_TARGET_HAS_mulsh_i64        0
 122 /* Turn some undef macros into true macros.  */
 123 #define TCG_TARGET_HAS_add2_i32         1
 124 #define TCG_TARGET_HAS_sub2_i32         1
 125 #endif
 126
 127 #ifndef TCG_TARGET_deposit_i32_valid
 128 #define TCG_TARGET_deposit_i32_valid(ofs, len) 1
 129 #endif
 130 #ifndef TCG_TARGET_deposit_i64_valid
 131 #define TCG_TARGET_deposit_i64_valid(ofs, len) 1
 132 #endif
 133
 134 /* Only one of DIV or DIV2 should be defined.  */
 135 #if defined(TCG_TARGET_HAS_div_i32)
 136 #define TCG_TARGET_HAS_div2_i32         0
 137 #elif defined(TCG_TARGET_HAS_div2_i32)
 138 #define TCG_TARGET_HAS_div_i32          0
 139 #define TCG_TARGET_HAS_rem_i32          0
 140 #endif
 141 #if defined(TCG_TARGET_HAS_div_i64)
 142 #define TCG_TARGET_HAS_div2_i64         0
 143 #elif defined(TCG_TARGET_HAS_div2_i64)
 144 #define TCG_TARGET_HAS_div_i64          0
 145 #define TCG_TARGET_HAS_rem_i64          0
 146 #endif
 147
 148 /* For 32-bit targets, some sort of unsigned widening multiply is required.  */
 149 #if TCG_TARGET_REG_BITS == 32 \
 150     && !(defined(TCG_TARGET_HAS_mulu2_i32) \
 151          || defined(TCG_TARGET_HAS_muluh_i32))
 152 # error "Missing unsigned widening multiply"
 153 #endif
 154
 155 #ifndef TARGET_INSN_START_EXTRA_WORDS
 156 # define TARGET_INSN_START_WORDS 1
 157 #else
 158 # define TARGET_INSN_START_WORDS (1 + TARGET_INSN_START_EXTRA_WORDS)
 159 #endif
 160
 161 typedef enum TCGOpcode {
 162 #define DEF(name, oargs, iargs, cargs, flags) INDEX_op_ ## name,
 163 #include "tcg-opc.h"
 164 #undef DEF
 165     NB_OPS,
 166 } TCGOpcode;
 167
 168 #define tcg_regset_clear(d) (d) = 0
 169 #define tcg_regset_set(d, s) (d) = (s)
 170 #define tcg_regset_set32(d, reg, val32) (d) |= (val32) << (reg)
 171 #define tcg_regset_set_reg(d, r) (d) |= 1L << (r)
 172 #define tcg_regset_reset_reg(d, r) (d) &= ~(1L << (r))
 173 #define tcg_regset_test_reg(d, r) (((d) >> (r)) & 1)
 174 #define tcg_regset_or(d, a, b) (d) = (a) | (b)
 175 #define tcg_regset_and(d, a, b) (d) = (a) & (b)
 176 #define tcg_regset_andnot(d, a, b) (d) = (a) & ~(b)
 177 #define tcg_regset_not(d, a) (d) = ~(a)
 178
 179 #ifndef TCG_TARGET_INSN_UNIT_SIZE
 180 # error "Missing TCG_TARGET_INSN_UNIT_SIZE"
 181 #elif TCG_TARGET_INSN_UNIT_SIZE == 1
 182 typedef uint8_t tcg_insn_unit;
 183 #elif TCG_TARGET_INSN_UNIT_SIZE == 2
 184 typedef uint16_t tcg_insn_unit;
 185 #elif TCG_TARGET_INSN_UNIT_SIZE == 4
 186 typedef uint32_t tcg_insn_unit;
 187 #elif TCG_TARGET_INSN_UNIT_SIZE == 8
 188 typedef uint64_t tcg_insn_unit;
 189 #else
 190 /* The port better have done this.  */
 191 #endif
 192
 193
 194 #if defined CONFIG_DEBUG_TCG || defined QEMU_STATIC_ANALYSIS
 195 # define tcg_debug_assert(X) do { assert(X); } while (0)
 196 #elif QEMU_GNUC_PREREQ(4, 5)
 197 # define tcg_debug_assert(X) \
 198     do { if (!(X)) { __builtin_unreachable(); } } while (0)
 199 #else
 200 # define tcg_debug_assert(X) do { (void)(X); } while (0)
 201 #endif
 202
 203 typedef struct TCGRelocation {
 204     struct TCGRelocation *next;
 205     int type;
 206     tcg_insn_unit *ptr;
 207     intptr_t addend;
 208 } TCGRelocation;
 209
 210 typedef struct TCGLabel {
 211     unsigned has_value : 1;
 212     unsigned id : 31;
 213     union {
 214         uintptr_t value;
 215         tcg_insn_unit *value_ptr;
 216         TCGRelocation *first_reloc;
 217     } u;
 218 } TCGLabel;
 219
 220 typedef struct TCGPool {
 221     struct TCGPool *next;
 222     int size;
 223     uint8_t data[0] __attribute__ ((aligned));
 224 } TCGPool;
 225
 226 #define TCG_POOL_CHUNK_SIZE 32768
 227
 228 #define TCG_MAX_TEMPS 512
 229 #define TCG_MAX_INSNS 512
 230
 231 /* when the size of the arguments of a called function is smaller than
 232    this value, they are statically allocated in the TB stack frame */
 233 #define TCG_STATIC_CALL_ARGS_SIZE 128
 234
 235 typedef enum TCGType {
 236     TCG_TYPE_I32,
 237     TCG_TYPE_I64,
 238     TCG_TYPE_COUNT, /* number of different types */
 239
 240     /* An alias for the size of the host register.  */
 241 #if TCG_TARGET_REG_BITS == 32
 242     TCG_TYPE_REG = TCG_TYPE_I32,
 243 #else
 244     TCG_TYPE_REG = TCG_TYPE_I64,
 245 #endif
 246
 247     /* An alias for the size of the native pointer.  */
 248 #if UINTPTR_MAX == UINT32_MAX
 249     TCG_TYPE_PTR = TCG_TYPE_I32,
 250 #else
 251     TCG_TYPE_PTR = TCG_TYPE_I64,
 252 #endif
 253
 254     /* An alias for the size of the target "long", aka register.  */
 255 #if TARGET_LONG_BITS == 64
 256     TCG_TYPE_TL = TCG_TYPE_I64,
 257 #else
 258     TCG_TYPE_TL = TCG_TYPE_I32,
 259 #endif
 260 } TCGType;
 261
 262 /* Constants for qemu_ld and qemu_st for the Memory Operation field.  */
 263 typedef enum TCGMemOp {
 264     MO_8     = 0,
 265     MO_16    = 1,
 266     MO_32    = 2,
 267     MO_64    = 3,
 268     MO_SIZE  = 3,   /* Mask for the above.  */
 269
 270     MO_SIGN  = 4,   /* Sign-extended, otherwise zero-extended.  */
 271
 272     MO_BSWAP = 8,   /* Host reverse endian.  */
 273 #ifdef HOST_WORDS_BIGENDIAN
 274     MO_LE    = MO_BSWAP,
 275     MO_BE    = 0,
 276 #else
 277     MO_LE    = 0,
 278     MO_BE    = MO_BSWAP,
 279 #endif
 280 #ifdef TARGET_WORDS_BIGENDIAN
 281     MO_TE    = MO_BE,
 282 #else
 283     MO_TE    = MO_LE,
 284 #endif
 285
 286     /* MO_UNALN accesses are never checked for alignment.
 287      * MO_ALIGN accesses will result in a call to the CPU's
 288      * do_unaligned_access hook if the guest address is not aligned.
 289      * The default depends on whether the target CPU defines ALIGNED_ONLY.
 290      * Some architectures (e.g. ARMv8) need the address which is aligned
 291      * to a size more than the size of the memory access.
 292      * To support such check it's enough the current costless alignment
 293      * check implementation in QEMU, but we need to support
 294      * an alignment size specifying.
 295      * MO_ALIGN supposes a natural alignment
 296      * (i.e. the alignment size is the size of a memory access).
 297      * Note that an alignment size must be equal or greater
 298      * than an access size.
 299      * There are three options:
 300      * - an alignment to the size of an access (MO_ALIGN);
 301      * - an alignment to the specified size that is equal or greater than
 302      *   an access size (MO_ALIGN_x where 'x' is a size in bytes);
 303      * - unaligned access permitted (MO_UNALN).
 304      */
 305     MO_ASHIFT = 4,
 306     MO_AMASK = 7 << MO_ASHIFT,
 307 #ifdef ALIGNED_ONLY
 308     MO_ALIGN = 0,
 309     MO_UNALN = MO_AMASK,
 310 #else
 311     MO_ALIGN = MO_AMASK,
 312     MO_UNALN = 0,
 313 #endif
 314     MO_ALIGN_2  = 1 << MO_ASHIFT,
 315     MO_ALIGN_4  = 2 << MO_ASHIFT,
 316     MO_ALIGN_8  = 3 << MO_ASHIFT,
 317     MO_ALIGN_16 = 4 << MO_ASHIFT,
 318     MO_ALIGN_32 = 5 << MO_ASHIFT,
 319     MO_ALIGN_64 = 6 << MO_ASHIFT,
 320
 321     /* Combinations of the above, for ease of use.  */
 322     MO_UB    = MO_8,
 323     MO_UW    = MO_16,
 324     MO_UL    = MO_32,
 325     MO_SB    = MO_SIGN | MO_8,
 326     MO_SW    = MO_SIGN | MO_16,
 327     MO_SL    = MO_SIGN | MO_32,
 328     MO_Q     = MO_64,
 329
 330     MO_LEUW  = MO_LE | MO_UW,
 331     MO_LEUL  = MO_LE | MO_UL,
 332     MO_LESW  = MO_LE | MO_SW,
 333     MO_LESL  = MO_LE | MO_SL,
 334     MO_LEQ   = MO_LE | MO_Q,
 335
 336     MO_BEUW  = MO_BE | MO_UW,
 337     MO_BEUL  = MO_BE | MO_UL,
 338     MO_BESW  = MO_BE | MO_SW,
 339     MO_BESL  = MO_BE | MO_SL,
 340     MO_BEQ   = MO_BE | MO_Q,
 341
 342     MO_TEUW  = MO_TE | MO_UW,
 343     MO_TEUL  = MO_TE | MO_UL,
 344     MO_TESW  = MO_TE | MO_SW,
 345     MO_TESL  = MO_TE | MO_SL,
 346     MO_TEQ   = MO_TE | MO_Q,
 347
 348     MO_SSIZE = MO_SIZE | MO_SIGN,
 349 } TCGMemOp;
 350
 351 /**
 352  * get_alignment_bits
 353  * @memop: TCGMemOp value
 354  *
 355  * Extract the alignment size from the memop.
 356  *
 357  * Returns: 0 in case of byte access (which is always aligned);
 358  *          positive value - number of alignment bits;
 359  *          negative value if unaligned access enabled
 360  *          and this is not a byte access.
 361  */
 362 static inline int get_alignment_bits(TCGMemOp memop)
 363 {
 364     int a = memop & MO_AMASK;
 365     int s = memop & MO_SIZE;
 366     int r;
 367
 368     if (a == MO_UNALN) {
 369         /* Negative value if unaligned access enabled,
 370          * or zero value in case of byte access.
 371          */
 372         return -s;
 373     } else if (a == MO_ALIGN) {
 374         /* A natural alignment: return a number of access size bits */
 375         r = s;
 376     } else {
 377         /* Specific alignment size. It must be equal or greater
 378          * than the access size.
 379          */
 380         r = a >> MO_ASHIFT;
 381         tcg_debug_assert(r >= s);
 382     }
 383 #if defined(CONFIG_SOFTMMU)
 384     /* The requested alignment cannot overlap the TLB flags.  */
 385     tcg_debug_assert((TLB_FLAGS_MASK & ((1 << r) - 1)) == 0);
 386 #endif
 387     return r;
 388 }
 389
 390 typedef tcg_target_ulong TCGArg;
 391
 392 /* Define a type and accessor macros for variables.  Using pointer types
 393    is nice because it gives some level of type safely.  Converting to and
 394    from intptr_t rather than int reduces the number of sign-extension
 395    instructions that get implied on 64-bit hosts.  Users of tcg_gen_* don't
 396    need to know about any of this, and should treat TCGv as an opaque type.
 397    In addition we do typechecking for different types of variables.  TCGv_i32
 398    and TCGv_i64 are 32/64-bit variables respectively.  TCGv and TCGv_ptr
 399    are aliases for target_ulong and host pointer sized values respectively.  */
 400
 401 typedef struct TCGv_i32_d *TCGv_i32;
 402 typedef struct TCGv_i64_d *TCGv_i64;
 403 typedef struct TCGv_ptr_d *TCGv_ptr;
 404 typedef TCGv_ptr TCGv_env;
 405 #if TARGET_LONG_BITS == 32
 406 #define TCGv TCGv_i32
 407 #elif TARGET_LONG_BITS == 64
 408 #define TCGv TCGv_i64
 409 #else
 410 #error Unhandled TARGET_LONG_BITS value
 411 #endif
 412
 413 static inline TCGv_i32 QEMU_ARTIFICIAL MAKE_TCGV_I32(intptr_t i)
 414 {
 415     return (TCGv_i32)i;
 416 }
 417
 418 static inline TCGv_i64 QEMU_ARTIFICIAL MAKE_TCGV_I64(intptr_t i)
 419 {
 420     return (TCGv_i64)i;
 421 }
 422
 423 static inline TCGv_ptr QEMU_ARTIFICIAL MAKE_TCGV_PTR(intptr_t i)
 424 {
 425     return (TCGv_ptr)i;
 426 }
 427
 428 static inline intptr_t QEMU_ARTIFICIAL GET_TCGV_I32(TCGv_i32 t)
 429 {
 430     return (intptr_t)t;
 431 }
 432
 433 static inline intptr_t QEMU_ARTIFICIAL GET_TCGV_I64(TCGv_i64 t)
 434 {
 435     return (intptr_t)t;
 436 }
 437
 438 static inline intptr_t QEMU_ARTIFICIAL GET_TCGV_PTR(TCGv_ptr t)
 439 {
 440     return (intptr_t)t;
 441 }
 442
 443 #if TCG_TARGET_REG_BITS == 32
 444 #define TCGV_LOW(t) MAKE_TCGV_I32(GET_TCGV_I64(t))
 445 #define TCGV_HIGH(t) MAKE_TCGV_I32(GET_TCGV_I64(t) + 1)
 446 #endif
 447
 448 #define TCGV_EQUAL_I32(a, b) (GET_TCGV_I32(a) == GET_TCGV_I32(b))
 449 #define TCGV_EQUAL_I64(a, b) (GET_TCGV_I64(a) == GET_TCGV_I64(b))
 450 #define TCGV_EQUAL_PTR(a, b) (GET_TCGV_PTR(a) == GET_TCGV_PTR(b))
 451
 452 /* Dummy definition to avoid compiler warnings.  */
 453 #define TCGV_UNUSED_I32(x) x = MAKE_TCGV_I32(-1)
 454 #define TCGV_UNUSED_I64(x) x = MAKE_TCGV_I64(-1)
 455 #define TCGV_UNUSED_PTR(x) x = MAKE_TCGV_PTR(-1)
 456
 457 #define TCGV_IS_UNUSED_I32(x) (GET_TCGV_I32(x) == -1)
 458 #define TCGV_IS_UNUSED_I64(x) (GET_TCGV_I64(x) == -1)
 459 #define TCGV_IS_UNUSED_PTR(x) (GET_TCGV_PTR(x) == -1)
 460
 461 /* call flags */
 462 /* Helper does not read globals (either directly or through an exception). It
 463    implies TCG_CALL_NO_WRITE_GLOBALS. */
 464 #define TCG_CALL_NO_READ_GLOBALS    0x0010
 465 /* Helper does not write globals */
 466 #define TCG_CALL_NO_WRITE_GLOBALS   0x0020
 467 /* Helper can be safely suppressed if the return value is not used. */
 468 #define TCG_CALL_NO_SIDE_EFFECTS    0x0040
 469
 470 /* convenience version of most used call flags */
 471 #define TCG_CALL_NO_RWG         TCG_CALL_NO_READ_GLOBALS
 472 #define TCG_CALL_NO_WG          TCG_CALL_NO_WRITE_GLOBALS
 473 #define TCG_CALL_NO_SE          TCG_CALL_NO_SIDE_EFFECTS
 474 #define TCG_CALL_NO_RWG_SE      (TCG_CALL_NO_RWG | TCG_CALL_NO_SE)
 475 #define TCG_CALL_NO_WG_SE       (TCG_CALL_NO_WG | TCG_CALL_NO_SE)
 476
 477 /* used to align parameters */
 478 #define TCG_CALL_DUMMY_TCGV     MAKE_TCGV_I32(-1)
 479 #define TCG_CALL_DUMMY_ARG      ((TCGArg)(-1))
 480
 481 /* Conditions.  Note that these are laid out for easy manipulation by
 482    the functions below:
 483      bit 0 is used for inverting;
 484      bit 1 is signed,
 485      bit 2 is unsigned,
 486      bit 3 is used with bit 0 for swapping signed/unsigned.  */
 487 typedef enum {
 488     /* non-signed */
 489     TCG_COND_NEVER  = 0 | 0 | 0 | 0,
 490     TCG_COND_ALWAYS = 0 | 0 | 0 | 1,
 491     TCG_COND_EQ     = 8 | 0 | 0 | 0,
 492     TCG_COND_NE     = 8 | 0 | 0 | 1,
 493     /* signed */
 494     TCG_COND_LT     = 0 | 0 | 2 | 0,
 495     TCG_COND_GE     = 0 | 0 | 2 | 1,
 496     TCG_COND_LE     = 8 | 0 | 2 | 0,
 497     TCG_COND_GT     = 8 | 0 | 2 | 1,
 498     /* unsigned */
 499     TCG_COND_LTU    = 0 | 4 | 0 | 0,
 500     TCG_COND_GEU    = 0 | 4 | 0 | 1,
 501     TCG_COND_LEU    = 8 | 4 | 0 | 0,
 502     TCG_COND_GTU    = 8 | 4 | 0 | 1,
 503 } TCGCond;
 504
 505 /* Invert the sense of the comparison.  */
 506 static inline TCGCond tcg_invert_cond(TCGCond c)
 507 {
 508     return (TCGCond)(c ^ 1);
 509 }
 510
 511 /* Swap the operands in a comparison.  */
 512 static inline TCGCond tcg_swap_cond(TCGCond c)
 513 {
 514     return c & 6 ? (TCGCond)(c ^ 9) : c;
 515 }
 516
 517 /* Create an "unsigned" version of a "signed" comparison.  */
 518 static inline TCGCond tcg_unsigned_cond(TCGCond c)
 519 {
 520     return c & 2 ? (TCGCond)(c ^ 6) : c;
 521 }
 522
 523 /* Must a comparison be considered unsigned?  */
 524 static inline bool is_unsigned_cond(TCGCond c)
 525 {
 526     return (c & 4) != 0;
 527 }
 528
 529 /* Create a "high" version of a double-word comparison.
 530    This removes equality from a LTE or GTE comparison.  */
 531 static inline TCGCond tcg_high_cond(TCGCond c)
 532 {
 533     switch (c) {
 534     case TCG_COND_GE:
 535     case TCG_COND_LE:
 536     case TCG_COND_GEU:
 537     case TCG_COND_LEU:
 538         return (TCGCond)(c ^ 8);
 539     default:
 540         return c;
 541     }
 542 }
 543
 544 typedef enum TCGTempVal {
 545     TEMP_VAL_DEAD,
 546     TEMP_VAL_REG,
 547     TEMP_VAL_MEM,
 548     TEMP_VAL_CONST,
 549 } TCGTempVal;
 550
 551 typedef struct TCGTemp {
 552     TCGReg reg:8;
 553     TCGTempVal val_type:8;
 554     TCGType base_type:8;
 555     TCGType type:8;
 556     unsigned int fixed_reg:1;
 557     unsigned int indirect_reg:1;
 558     unsigned int indirect_base:1;
 559     unsigned int mem_coherent:1;
 560     unsigned int mem_allocated:1;
 561     unsigned int temp_local:1; /* If true, the temp is saved across
 562                                   basic blocks. Otherwise, it is not
 563                                   preserved across basic blocks. */
 564     unsigned int temp_allocated:1; /* never used for code gen */
 565
 566     tcg_target_long val;
 567     struct TCGTemp *mem_base;
 568     intptr_t mem_offset;
 569     const char *name;
 570 } TCGTemp;
 571
 572 typedef struct TCGContext TCGContext;
 573
 574 typedef struct TCGTempSet {
 575     unsigned long l[BITS_TO_LONGS(TCG_MAX_TEMPS)];
 576 } TCGTempSet;
 577
 578 /* While we limit helpers to 6 arguments, for 32-bit hosts, with padding,
 579    this imples a max of 6*2 (64-bit in) + 2 (64-bit out) = 14 operands.
 580    There are never more than 2 outputs, which means that we can store all
 581    dead + sync data within 16 bits.  */
 582 #define DEAD_ARG  4
 583 #define SYNC_ARG  1
 584 typedef uint16_t TCGLifeData;
 585
 586 /* The layout here is designed to avoid crossing of a 32-bit boundary.
 587    If we do so, gcc adds padding, expanding the size to 12.  */
 588 typedef struct TCGOp {
 589     TCGOpcode opc   : 8;        /*  8 */
 590
 591     /* Index of the prev/next op, or 0 for the end of the list.  */
 592     unsigned prev   : 10;       /* 18 */
 593     unsigned next   : 10;       /* 28 */
 594
 595     /* The number of out and in parameter for a call.  */
 596     unsigned calli  : 4;        /* 32 */
 597     unsigned callo  : 2;        /* 34 */
 598
 599     /* Index of the arguments for this op, or 0 for zero-operand ops.  */
 600     unsigned args   : 14;       /* 48 */
 601
 602     /* Lifetime data of the operands.  */
 603     unsigned life   : 16;       /* 64 */
 604 } TCGOp;
 605
 606 /* Make sure operands fit in the bitfields above.  */
 607 QEMU_BUILD_BUG_ON(NB_OPS > (1 << 8));
 608 QEMU_BUILD_BUG_ON(OPC_BUF_SIZE > (1 << 10));
 609 QEMU_BUILD_BUG_ON(OPPARAM_BUF_SIZE > (1 << 14));
 610
 611 /* Make sure that we don't overflow 64 bits without noticing.  */
 612 QEMU_BUILD_BUG_ON(sizeof(TCGOp) > 8);
 613
 614 struct TCGContext {
 615     uint8_t *pool_cur, *pool_end;
 616     TCGPool *pool_first, *pool_current, *pool_first_large;
 617     int nb_labels;
 618     int nb_globals;
 619     int nb_temps;
 620     int nb_indirects;
 621
 622     /* goto_tb support */
 623     tcg_insn_unit *code_buf;
 624     uint16_t *tb_jmp_reset_offset; /* tb->jmp_reset_offset */
 625     uint16_t *tb_jmp_insn_offset; /* tb->jmp_insn_offset if USE_DIRECT_JUMP */
 626     uintptr_t *tb_jmp_target_addr; /* tb->jmp_target_addr if !USE_DIRECT_JUMP */
 627
 628     TCGRegSet reserved_regs;
 629     intptr_t current_frame_offset;
 630     intptr_t frame_start;
 631     intptr_t frame_end;
 632     TCGTemp *frame_temp;
 633
 634     tcg_insn_unit *code_ptr;
 635
 636     GHashTable *helpers;
 637
 638 #ifdef CONFIG_PROFILER
 639     /* profiling info */
 640     int64_t tb_count1;
 641     int64_t tb_count;
 642     int64_t op_count; /* total insn count */
 643     int op_count_max; /* max insn per TB */
 644     int64_t temp_count;
 645     int temp_count_max;
 646     int64_t del_op_count;
 647     int64_t code_in_len;
 648     int64_t code_out_len;
 649     int64_t search_out_len;
 650     int64_t interm_time;
 651     int64_t code_time;
 652     int64_t la_time;
 653     int64_t opt_time;
 654     int64_t restore_count;
 655     int64_t restore_time;
 656 #endif
 657
 658 #ifdef CONFIG_DEBUG_TCG
 659     int temps_in_use;
 660     int goto_tb_issue_mask;
 661 #endif
 662
 663     int gen_next_op_idx;
 664     int gen_next_parm_idx;
 665
 666     /* Code generation.  Note that we specifically do not use tcg_insn_unit
 667        here, because there's too much arithmetic throughout that relies
 668        on addition and subtraction working on bytes.  Rely on the GCC
 669        extension that allows arithmetic on void*.  */
 670     int code_gen_max_blocks;
 671     void *code_gen_prologue;
 672     void *code_gen_buffer;
 673     size_t code_gen_buffer_size;
 674     void *code_gen_ptr;
 675
 676     /* Threshold to flush the translated code buffer.  */
 677     void *code_gen_highwater;
 678
 679     TBContext tb_ctx;
 680
 681     /* Track which vCPU triggers events */
 682     CPUState *cpu;                      /* *_trans */
 683     TCGv_env tcg_env;                   /* *_exec  */
 684
 685     /* The TCGBackendData structure is private to tcg-target.inc.c.  */
 686     struct TCGBackendData *be;
 687
 688     TCGTempSet free_temps[TCG_TYPE_COUNT * 2];
 689     TCGTemp temps[TCG_MAX_TEMPS]; /* globals first, temps after */
 690
 691     /* Tells which temporary holds a given register.
 692        It does not take into account fixed registers */
 693     TCGTemp *reg_to_temp[TCG_TARGET_NB_REGS];
 694
 695     TCGOp gen_op_buf[OPC_BUF_SIZE];
 696     TCGArg gen_opparam_buf[OPPARAM_BUF_SIZE];
 697
 698     uint16_t gen_insn_end_off[TCG_MAX_INSNS];
 699     target_ulong gen_insn_data[TCG_MAX_INSNS][TARGET_INSN_START_WORDS];
 700 };
 701
 702 extern TCGContext tcg_ctx;
 703
 704 static inline void tcg_set_insn_param(int op_idx, int arg, TCGArg v)
 705 {
 706     int op_argi = tcg_ctx.gen_op_buf[op_idx].args;
 707     tcg_ctx.gen_opparam_buf[op_argi + arg] = v;
 708 }
 709
 710 /* The number of opcodes emitted so far.  */
 711 static inline int tcg_op_buf_count(void)
 712 {
 713     return tcg_ctx.gen_next_op_idx;
 714 }
 715
 716 /* Test for whether to terminate the TB for using too many opcodes.  */
 717 static inline bool tcg_op_buf_full(void)
 718 {
 719     return tcg_op_buf_count() >= OPC_MAX_SIZE;
 720 }
 721
 722 /* pool based memory allocation */
 723
 724 void *tcg_malloc_internal(TCGContext *s, int size);
 725 void tcg_pool_reset(TCGContext *s);
 726 void tcg_pool_delete(TCGContext *s);
 727
 728 void tb_lock(void);
 729 void tb_unlock(void);
 730 void tb_lock_reset(void);
 731
 732 static inline void *tcg_malloc(int size)
 733 {
 734     TCGContext *s = &tcg_ctx;
 735     uint8_t *ptr, *ptr_end;
 736     size = (size + sizeof(long) - 1) & ~(sizeof(long) - 1);
 737     ptr = s->pool_cur;
 738     ptr_end = ptr + size;
 739     if (unlikely(ptr_end > s->pool_end)) {
 740         return tcg_malloc_internal(&tcg_ctx, size);
 741     } else {
 742         s->pool_cur = ptr_end;
 743         return ptr;
 744     }
 745 }
 746
 747 void tcg_context_init(TCGContext *s);
 748 void tcg_prologue_init(TCGContext *s);
 749 void tcg_func_start(TCGContext *s);
 750
 751 int tcg_gen_code(TCGContext *s, TranslationBlock *tb);
 752
 753 void tcg_set_frame(TCGContext *s, TCGReg reg, intptr_t start, intptr_t size);
 754
 755 int tcg_global_mem_new_internal(TCGType, TCGv_ptr, intptr_t, const char *);
 756
 757 TCGv_i32 tcg_global_reg_new_i32(TCGReg reg, const char *name);
 758 TCGv_i64 tcg_global_reg_new_i64(TCGReg reg, const char *name);
 759
 760 TCGv_i32 tcg_temp_new_internal_i32(int temp_local);
 761 TCGv_i64 tcg_temp_new_internal_i64(int temp_local);
 762
 763 void tcg_temp_free_i32(TCGv_i32 arg);
 764 void tcg_temp_free_i64(TCGv_i64 arg);
 765
 766 static inline TCGv_i32 tcg_global_mem_new_i32(TCGv_ptr reg, intptr_t offset,
 767                                               const char *name)
 768 {
 769     int idx = tcg_global_mem_new_internal(TCG_TYPE_I32, reg, offset, name);
 770     return MAKE_TCGV_I32(idx);
 771 }
 772
 773 static inline TCGv_i32 tcg_temp_new_i32(void)
 774 {
 775     return tcg_temp_new_internal_i32(0);
 776 }
 777
 778 static inline TCGv_i32 tcg_temp_local_new_i32(void)
 779 {
 780     return tcg_temp_new_internal_i32(1);
 781 }
 782
 783 static inline TCGv_i64 tcg_global_mem_new_i64(TCGv_ptr reg, intptr_t offset,
 784                                               const char *name)
 785 {
 786     int idx = tcg_global_mem_new_internal(TCG_TYPE_I64, reg, offset, name);
 787     return MAKE_TCGV_I64(idx);
 788 }
 789
 790 static inline TCGv_i64 tcg_temp_new_i64(void)
 791 {
 792     return tcg_temp_new_internal_i64(0);
 793 }
 794
 795 static inline TCGv_i64 tcg_temp_local_new_i64(void)
 796 {
 797     return tcg_temp_new_internal_i64(1);
 798 }
 799
 800 #if defined(CONFIG_DEBUG_TCG)
 801 /* If you call tcg_clear_temp_count() at the start of a section of
 802  * code which is not supposed to leak any TCG temporaries, then
 803  * calling tcg_check_temp_count() at the end of the section will
 804  * return 1 if the section did in fact leak a temporary.
 805  */
 806 void tcg_clear_temp_count(void);
 807 int tcg_check_temp_count(void);
 808 #else
 809 #define tcg_clear_temp_count() do { } while (0)
 810 #define tcg_check_temp_count() 0
 811 #endif
 812
 813 void tcg_dump_info(FILE *f, fprintf_function cpu_fprintf);
 814 void tcg_dump_op_count(FILE *f, fprintf_function cpu_fprintf);
 815
 816 #define TCG_CT_ALIAS  0x80
 817 #define TCG_CT_IALIAS 0x40
 818 #define TCG_CT_REG    0x01
 819 #define TCG_CT_CONST  0x02 /* any constant of register size */
 820
 821 typedef struct TCGArgConstraint {
 822     uint16_t ct;
 823     uint8_t alias_index;
 824     union {
 825         TCGRegSet regs;
 826     } u;
 827 } TCGArgConstraint;
 828
 829 #define TCG_MAX_OP_ARGS 16
 830
 831 /* Bits for TCGOpDef->flags, 8 bits available.  */
 832 enum {
 833     /* Instruction defines the end of a basic block.  */
 834     TCG_OPF_BB_END       = 0x01,
 835     /* Instruction clobbers call registers and potentially update globals.  */
 836     TCG_OPF_CALL_CLOBBER = 0x02,
 837     /* Instruction has side effects: it cannot be removed if its outputs
 838        are not used, and might trigger exceptions.  */
 839     TCG_OPF_SIDE_EFFECTS = 0x04,
 840     /* Instruction operands are 64-bits (otherwise 32-bits).  */
 841     TCG_OPF_64BIT        = 0x08,
 842     /* Instruction is optional and not implemented by the host, or insn
 843        is generic and should not be implemened by the host.  */
 844     TCG_OPF_NOT_PRESENT  = 0x10,
 845 };
 846
 847 typedef struct TCGOpDef {
 848     const char *name;
 849     uint8_t nb_oargs, nb_iargs, nb_cargs, nb_args;
 850     uint8_t flags;
 851     TCGArgConstraint *args_ct;
 852     int *sorted_args;
 853 #if defined(CONFIG_DEBUG_TCG)
 854     int used;
 855 #endif
 856 } TCGOpDef;
 857
 858 extern TCGOpDef tcg_op_defs[];
 859 extern const size_t tcg_op_defs_max;
 860
 861 typedef struct TCGTargetOpDef {
 862     TCGOpcode op;
 863     const char *args_ct_str[TCG_MAX_OP_ARGS];
 864 } TCGTargetOpDef;
 865
 866 #define tcg_abort() \
 867 do {\
 868     fprintf(stderr, "%s:%d: tcg fatal error\n", __FILE__, __LINE__);\
 869     abort();\
 870 } while (0)
 871
 872 void tcg_add_target_add_op_defs(const TCGTargetOpDef *tdefs);
 873
 874 #if UINTPTR_MAX == UINT32_MAX
 875 #define TCGV_NAT_TO_PTR(n) MAKE_TCGV_PTR(GET_TCGV_I32(n))
 876 #define TCGV_PTR_TO_NAT(n) MAKE_TCGV_I32(GET_TCGV_PTR(n))
 877
 878 #define tcg_const_ptr(V) TCGV_NAT_TO_PTR(tcg_const_i32((intptr_t)(V)))
 879 #define tcg_global_reg_new_ptr(R, N) \
 880     TCGV_NAT_TO_PTR(tcg_global_reg_new_i32((R), (N)))
 881 #define tcg_global_mem_new_ptr(R, O, N) \
 882     TCGV_NAT_TO_PTR(tcg_global_mem_new_i32((R), (O), (N)))
 883 #define tcg_temp_new_ptr() TCGV_NAT_TO_PTR(tcg_temp_new_i32())
 884 #define tcg_temp_free_ptr(T) tcg_temp_free_i32(TCGV_PTR_TO_NAT(T))
 885 #else
 886 #define TCGV_NAT_TO_PTR(n) MAKE_TCGV_PTR(GET_TCGV_I64(n))
 887 #define TCGV_PTR_TO_NAT(n) MAKE_TCGV_I64(GET_TCGV_PTR(n))
 888
 889 #define tcg_const_ptr(V) TCGV_NAT_TO_PTR(tcg_const_i64((intptr_t)(V)))
 890 #define tcg_global_reg_new_ptr(R, N) \
 891     TCGV_NAT_TO_PTR(tcg_global_reg_new_i64((R), (N)))
 892 #define tcg_global_mem_new_ptr(R, O, N) \
 893     TCGV_NAT_TO_PTR(tcg_global_mem_new_i64((R), (O), (N)))
 894 #define tcg_temp_new_ptr() TCGV_NAT_TO_PTR(tcg_temp_new_i64())
 895 #define tcg_temp_free_ptr(T) tcg_temp_free_i64(TCGV_PTR_TO_NAT(T))
 896 #endif
 897
 898 void tcg_gen_callN(TCGContext *s, void *func,
 899                    TCGArg ret, int nargs, TCGArg *args);
 900
 901 void tcg_op_remove(TCGContext *s, TCGOp *op);
 902 TCGOp *tcg_op_insert_before(TCGContext *s, TCGOp *op, TCGOpcode opc, int narg);
 903 TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *op, TCGOpcode opc, int narg);
 904
 905 void tcg_optimize(TCGContext *s);
 906
 907 /* only used for debugging purposes */
 908 void tcg_dump_ops(TCGContext *s);
 909
 910 void dump_ops(const uint16_t *opc_buf, const TCGArg *opparam_buf);
 911 TCGv_i32 tcg_const_i32(int32_t val);
 912 TCGv_i64 tcg_const_i64(int64_t val);
 913 TCGv_i32 tcg_const_local_i32(int32_t val);
 914 TCGv_i64 tcg_const_local_i64(int64_t val);
 915
 916 TCGLabel *gen_new_label(void);
 917
 918 /**
 919  * label_arg
 920  * @l: label
 921  *
 922  * Encode a label for storage in the TCG opcode stream.
 923  */
 924
 925 static inline TCGArg label_arg(TCGLabel *l)
 926 {
 927     return (uintptr_t)l;
 928 }
 929
 930 /**
 931  * arg_label
 932  * @i: value
 933  *
 934  * The opposite of label_arg.  Retrieve a label from the
 935  * encoding of the TCG opcode stream.
 936  */
 937
 938 static inline TCGLabel *arg_label(TCGArg i)
 939 {
 940     return (TCGLabel *)(uintptr_t)i;
 941 }
 942
 943 /**
 944  * tcg_ptr_byte_diff
 945  * @a, @b: addresses to be differenced
 946  *
 947  * There are many places within the TCG backends where we need a byte
 948  * difference between two pointers.  While this can be accomplished
 949  * with local casting, it's easy to get wrong -- especially if one is
 950  * concerned with the signedness of the result.
 951  *
 952  * This version relies on GCC's void pointer arithmetic to get the
 953  * correct result.
 954  */
 955
 956 static inline ptrdiff_t tcg_ptr_byte_diff(void *a, void *b)
 957 {
 958     return a - b;
 959 }
 960
 961 /**
 962  * tcg_pcrel_diff
 963  * @s: the tcg context
 964  * @target: address of the target
 965  *
 966  * Produce a pc-relative difference, from the current code_ptr
 967  * to the destination address.
 968  */
 969
 970 static inline ptrdiff_t tcg_pcrel_diff(TCGContext *s, void *target)
 971 {
 972     return tcg_ptr_byte_diff(target, s->code_ptr);
 973 }
 974
 975 /**
 976  * tcg_current_code_size
 977  * @s: the tcg context
 978  *
 979  * Compute the current code size within the translation block.
 980  * This is used to fill in qemu's data structures for goto_tb.
 981  */
 982
 983 static inline size_t tcg_current_code_size(TCGContext *s)
 984 {
 985     return tcg_ptr_byte_diff(s->code_ptr, s->code_buf);
 986 }
 987
 988 /* Combine the TCGMemOp and mmu_idx parameters into a single value.  */
 989 typedef uint32_t TCGMemOpIdx;
 990
 991 /**
 992  * make_memop_idx
 993  * @op: memory operation
 994  * @idx: mmu index
 995  *
 996  * Encode these values into a single parameter.
 997  */
 998 static inline TCGMemOpIdx make_memop_idx(TCGMemOp op, unsigned idx)
 999 {
1000     tcg_debug_assert(idx <= 15);
1001     return (op << 4) | idx;
1002 }
1003
1004 /**
1005  * get_memop
1006  * @oi: combined op/idx parameter
1007  *
1008  * Extract the memory operation from the combined value.
1009  */
1010 static inline TCGMemOp get_memop(TCGMemOpIdx oi)
1011 {
1012     return oi >> 4;
1013 }
1014
1015 /**
1016  * get_mmuidx
1017  * @oi: combined op/idx parameter
1018  *
1019  * Extract the mmu index from the combined value.
1020  */
1021 static inline unsigned get_mmuidx(TCGMemOpIdx oi)
1022 {
1023     return oi & 15;
1024 }
1025
1026 /**
1027  * tcg_qemu_tb_exec:
1028  * @env: pointer to CPUArchState for the CPU
1029  * @tb_ptr: address of generated code for the TB to execute
1030  *
1031  * Start executing code from a given translation block.
1032  * Where translation blocks have been linked, execution
1033  * may proceed from the given TB into successive ones.
1034  * Control eventually returns only when some action is needed
1035  * from the top-level loop: either control must pass to a TB
1036  * which has not yet been directly linked, or an asynchronous
1037  * event such as an interrupt needs handling.
1038  *
1039  * Return: The return value is the value passed to the corresponding
1040  * tcg_gen_exit_tb() at translation time of the last TB attempted to execute.
1041  * The value is either zero or a 4-byte aligned pointer to that TB combined
1042  * with additional information in its two least significant bits. The
1043  * additional information is encoded as follows:
1044  *  0, 1: the link between this TB and the next is via the specified
1045  *        TB index (0 or 1). That is, we left the TB via (the equivalent
1046  *        of) "goto_tb <index>". The main loop uses this to determine
1047  *        how to link the TB just executed to the next.
1048  *  2:    we are using instruction counting code generation, and we
1049  *        did not start executing this TB because the instruction counter
1050  *        would hit zero midway through it. In this case the pointer
1051  *        returned is the TB we were about to execute, and the caller must
1052  *        arrange to execute the remaining count of instructions.
1053  *  3:    we stopped because the CPU's exit_request flag was set
1054  *        (usually meaning that there is an interrupt that needs to be
1055  *        handled). The pointer returned is the TB we were about to execute
1056  *        when we noticed the pending exit request.
1057  *
1058  * If the bottom two bits indicate an exit-via-index then the CPU
1059  * state is correctly synchronised and ready for execution of the next
1060  * TB (and in particular the guest PC is the address to execute next).
1061  * Otherwise, we gave up on execution of this TB before it started, and
1062  * the caller must fix up the CPU state by calling the CPU's
1063  * synchronize_from_tb() method with the TB pointer we return (falling
1064  * back to calling the CPU's set_pc method with tb->pb if no
1065  * synchronize_from_tb() method exists).
1066  *
1067  * Note that TCG targets may use a different definition of tcg_qemu_tb_exec
1068  * to this default (which just calls the prologue.code emitted by
1069  * tcg_target_qemu_prologue()).
1070  */
1071 #define TB_EXIT_MASK 3
1072 #define TB_EXIT_IDX0 0
1073 #define TB_EXIT_IDX1 1
1074 #define TB_EXIT_ICOUNT_EXPIRED 2
1075 #define TB_EXIT_REQUESTED 3
1076
1077 #ifdef HAVE_TCG_QEMU_TB_EXEC
1078 uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr);
1079 #else
1080 # define tcg_qemu_tb_exec(env, tb_ptr) \
1081     ((uintptr_t (*)(void *, void *))tcg_ctx.code_gen_prologue)(env, tb_ptr)
1082 #endif
1083
1084 void tcg_register_jit(void *buf, size_t buf_size);
1085
1086 /*
1087  * Memory helpers that will be used by TCG generated code.
1088  */
1089 #ifdef CONFIG_SOFTMMU
1090 /* Value zero-extended to tcg register size.  */
1091 tcg_target_ulong helper_ret_ldub_mmu(CPUArchState *env, target_ulong addr,
1092                                      TCGMemOpIdx oi, uintptr_t retaddr);
1093 tcg_target_ulong helper_le_lduw_mmu(CPUArchState *env, target_ulong addr,
1094                                     TCGMemOpIdx oi, uintptr_t retaddr);
1095 tcg_target_ulong helper_le_ldul_mmu(CPUArchState *env, target_ulong addr,
1096                                     TCGMemOpIdx oi, uintptr_t retaddr);
1097 uint64_t helper_le_ldq_mmu(CPUArchState *env, target_ulong addr,
1098                            TCGMemOpIdx oi, uintptr_t retaddr);
1099 tcg_target_ulong helper_be_lduw_mmu(CPUArchState *env, target_ulong addr,
1100                                     TCGMemOpIdx oi, uintptr_t retaddr);
1101 tcg_target_ulong helper_be_ldul_mmu(CPUArchState *env, target_ulong addr,
1102                                     TCGMemOpIdx oi, uintptr_t retaddr);
1103 uint64_t helper_be_ldq_mmu(CPUArchState *env, target_ulong addr,
1104                            TCGMemOpIdx oi, uintptr_t retaddr);
1105
1106 /* Value sign-extended to tcg register size.  */
1107 tcg_target_ulong helper_ret_ldsb_mmu(CPUArchState *env, target_ulong addr,
1108                                      TCGMemOpIdx oi, uintptr_t retaddr);
1109 tcg_target_ulong helper_le_ldsw_mmu(CPUArchState *env, target_ulong addr,
1110                                     TCGMemOpIdx oi, uintptr_t retaddr);
1111 tcg_target_ulong helper_le_ldsl_mmu(CPUArchState *env, target_ulong addr,
1112                                     TCGMemOpIdx oi, uintptr_t retaddr);
1113 tcg_target_ulong helper_be_ldsw_mmu(CPUArchState *env, target_ulong addr,
1114                                     TCGMemOpIdx oi, uintptr_t retaddr);
1115 tcg_target_ulong helper_be_ldsl_mmu(CPUArchState *env, target_ulong addr,
1116                                     TCGMemOpIdx oi, uintptr_t retaddr);
1117
1118 void helper_ret_stb_mmu(CPUArchState *env, target_ulong addr, uint8_t val,
1119                         TCGMemOpIdx oi, uintptr_t retaddr);
1120 void helper_le_stw_mmu(CPUArchState *env, target_ulong addr, uint16_t val,
1121                        TCGMemOpIdx oi, uintptr_t retaddr);
1122 void helper_le_stl_mmu(CPUArchState *env, target_ulong addr, uint32_t val,
1123                        TCGMemOpIdx oi, uintptr_t retaddr);
1124 void helper_le_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val,
1125                        TCGMemOpIdx oi, uintptr_t retaddr);
1126 void helper_be_stw_mmu(CPUArchState *env, target_ulong addr, uint16_t val,
1127                        TCGMemOpIdx oi, uintptr_t retaddr);
1128 void helper_be_stl_mmu(CPUArchState *env, target_ulong addr, uint32_t val,
1129                        TCGMemOpIdx oi, uintptr_t retaddr);
1130 void helper_be_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val,
1131                        TCGMemOpIdx oi, uintptr_t retaddr);
1132
1133 uint8_t helper_ret_ldb_cmmu(CPUArchState *env, target_ulong addr,
1134                             TCGMemOpIdx oi, uintptr_t retaddr);
1135 uint16_t helper_le_ldw_cmmu(CPUArchState *env, target_ulong addr,
1136                             TCGMemOpIdx oi, uintptr_t retaddr);
1137 uint32_t helper_le_ldl_cmmu(CPUArchState *env, target_ulong addr,
1138                             TCGMemOpIdx oi, uintptr_t retaddr);
1139 uint64_t helper_le_ldq_cmmu(CPUArchState *env, target_ulong addr,
1140                             TCGMemOpIdx oi, uintptr_t retaddr);
1141 uint16_t helper_be_ldw_cmmu(CPUArchState *env, target_ulong addr,
1142                             TCGMemOpIdx oi, uintptr_t retaddr);
1143 uint32_t helper_be_ldl_cmmu(CPUArchState *env, target_ulong addr,
1144                             TCGMemOpIdx oi, uintptr_t retaddr);
1145 uint64_t helper_be_ldq_cmmu(CPUArchState *env, target_ulong addr,
1146                             TCGMemOpIdx oi, uintptr_t retaddr);
1147
1148 /* Temporary aliases until backends are converted.  */
1149 #ifdef TARGET_WORDS_BIGENDIAN
1150 # define helper_ret_ldsw_mmu  helper_be_ldsw_mmu
1151 # define helper_ret_lduw_mmu  helper_be_lduw_mmu
1152 # define helper_ret_ldsl_mmu  helper_be_ldsl_mmu
1153 # define helper_ret_ldul_mmu  helper_be_ldul_mmu
1154 # define helper_ret_ldl_mmu   helper_be_ldul_mmu
1155 # define helper_ret_ldq_mmu   helper_be_ldq_mmu
1156 # define helper_ret_stw_mmu   helper_be_stw_mmu
1157 # define helper_ret_stl_mmu   helper_be_stl_mmu
1158 # define helper_ret_stq_mmu   helper_be_stq_mmu
1159 # define helper_ret_ldw_cmmu  helper_be_ldw_cmmu
1160 # define helper_ret_ldl_cmmu  helper_be_ldl_cmmu
1161 # define helper_ret_ldq_cmmu  helper_be_ldq_cmmu
1162 #else
1163 # define helper_ret_ldsw_mmu  helper_le_ldsw_mmu
1164 # define helper_ret_lduw_mmu  helper_le_lduw_mmu
1165 # define helper_ret_ldsl_mmu  helper_le_ldsl_mmu
1166 # define helper_ret_ldul_mmu  helper_le_ldul_mmu
1167 # define helper_ret_ldl_mmu   helper_le_ldul_mmu
1168 # define helper_ret_ldq_mmu   helper_le_ldq_mmu
1169 # define helper_ret_stw_mmu   helper_le_stw_mmu
1170 # define helper_ret_stl_mmu   helper_le_stl_mmu
1171 # define helper_ret_stq_mmu   helper_le_stq_mmu
1172 # define helper_ret_ldw_cmmu  helper_le_ldw_cmmu
1173 # define helper_ret_ldl_cmmu  helper_le_ldl_cmmu
1174 # define helper_ret_ldq_cmmu  helper_le_ldq_cmmu
1175 #endif
1176
1177 #endif /* CONFIG_SOFTMMU */
1178
1179 #endif /* TCG_H */