mono/mini/mini.h

   1 #ifndef __MONO_MINI_H__
   2 #define __MONO_MINI_H__
   3
   4 #include "config.h"
   5 #include <glib.h>
   6 #include <signal.h>
   7 #include <mono/metadata/loader.h>
   8 #include <mono/metadata/mempool.h>
   9 #include <mono/utils/monobitset.h>
  10 #include <mono/metadata/class.h>
  11 #include <mono/metadata/object.h>
  12 #include <mono/metadata/opcodes.h>
  13 #include <mono/metadata/tabledefs.h>
  14 #include <mono/metadata/domain-internals.h>
  15 #include "mono/metadata/class-internals.h"
  16 #include "mono/metadata/object-internals.h"
  17 #include <mono/metadata/profiler-private.h>
  18 #include <mono/metadata/debug-helpers.h>
  19 #include <mono/utils/mono-compiler.h>
  20
  21 #define MONO_BREAKPOINT_ARRAY_SIZE 64
  22
  23 /* C type matching the size of a machine register. Not always the same as 'int' */
  24 /* Note that member 'p' of MonoInst must be the same type, as OP_PCONST is defined
  25  * as one of the OP_ICONST types, so inst_c0 must be the same as inst_p0
  26  */
  27 #if SIZEOF_REGISTER == 4
  28 typedef gint32 mgreg_t;
  29 #elif SIZEOF_REGISTER == 8
  30 typedef gint64 mgreg_t;
  31 #endif
  32
  33 #include "mini-arch.h"
  34 #include "regalloc.h"
  35 #include "declsec.h"
  36 #include "unwind.h"
  37
  38 #ifndef G_LIKELY
  39 #define G_LIKELY(a) (a)
  40 #define G_UNLIKELY(a) (a)
  41 #endif
  42
  43 #ifndef G_MAXINT32
  44 #define G_MAXINT32 2147483647
  45 #endif
  46
  47 #ifndef G_MININT32
  48 #define G_MININT32 (-G_MAXINT32 - 1)
  49 #endif
  50
  51 #if DISABLE_LOGGING
  52 #define MINI_DEBUG(level,limit,code)
  53 #else
  54 #define MINI_DEBUG(level,limit,code) do {if (G_UNLIKELY ((level) >= (limit))) code} while (0)
  55 #endif
  56
  57 #if !defined(DISABLE_TASKLETS) && defined(MONO_ARCH_SUPPORT_TASKLETS) && defined(__GNUC__)
  58 #define MONO_SUPPORT_TASKLETS 1
  59 #endif
  60
  61 #if ENABLE_LLVM
  62 #define COMPILE_LLVM(cfg) ((cfg)->compile_llvm)
  63 #define LLVM_ENABLED TRUE
  64 #else
  65 #define COMPILE_LLVM(cfg) (0)
  66 #define LLVM_ENABLED FALSE
  67 #endif
  68
  69 #define NOT_IMPLEMENTED do { g_assert_not_reached (); } while (0)
  70
  71 /* for 32 bit systems */
  72 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
  73 #define MINI_LS_WORD_IDX 0
  74 #define MINI_MS_WORD_IDX 1
  75 #else
  76 #define MINI_LS_WORD_IDX 1
  77 #define MINI_MS_WORD_IDX 0
  78 #endif
  79 #define MINI_LS_WORD_OFFSET (MINI_LS_WORD_IDX * 4)
  80 #define MINI_MS_WORD_OFFSET (MINI_MS_WORD_IDX * 4)
  81 #define inst_ls_word data.op[MINI_LS_WORD_IDX].const_val
  82 #define inst_ms_word data.op[MINI_MS_WORD_IDX].const_val
  83
  84 #define MONO_FAKE_IMT_METHOD ((MonoMethod*)GINT_TO_POINTER(-1))
  85 #define MONO_FAKE_VTABLE_METHOD ((MonoMethod*)GINT_TO_POINTER(-2))
  86
  87 #ifndef DISABLE_AOT
  88 #define MONO_USE_AOT_COMPILER
  89 #endif
  90
  91 /* Version number of the AOT file format */
  92 #define MONO_AOT_FILE_VERSION "62"
  93
  94 //TODO: This is x86/amd64 specific.
  95 #define mono_simd_shuffle_mask(a,b,c,d) ((a) | ((b) << 2) | ((c) << 4) | ((d) << 6))
  96
  97 /* Constants used to encode different types of methods in AOT */
  98 enum {
  99         MONO_AOT_METHODREF_MIN = 240,
 100         /* Method encoded using its name */
 101         MONO_AOT_METHODREF_WRAPPER_NAME = 250,
 102         /* Runtime provided methods on arrays */
 103         MONO_AOT_METHODREF_ARRAY = 251,
 104         MONO_AOT_METHODREF_NO_AOT_TRAMPOLINE = 252,
 105         /* Wrappers */
 106         MONO_AOT_METHODREF_WRAPPER = 253,
 107         /* Methods on generic instances */
 108         MONO_AOT_METHODREF_GINST = 254,
 109         /* Methods resolve using a METHODSPEC token */
 110         MONO_AOT_METHODREF_METHODSPEC = 255,
 111 };
 112
 113 /* Trampolines which we have a lot of */
 114 typedef enum {
 115         MONO_AOT_TRAMP_SPECIFIC = 0,
 116         MONO_AOT_TRAMP_STATIC_RGCTX = 1,
 117         MONO_AOT_TRAMP_IMT_THUNK = 2,
 118         MONO_AOT_TRAMP_NUM = 3
 119 } MonoAotTrampoline;
 120
 121 /* This structure is stored in the AOT file */
 122 typedef struct MonoAotFileInfo
 123 {
 124         guint32 plt_got_offset_base;
 125         guint32 got_size;
 126         guint32 plt_size;
 127         guint32 nmethods;
 128
 129         guint32 num_trampolines [MONO_AOT_TRAMP_NUM];
 130         guint32 trampoline_got_offset_base [MONO_AOT_TRAMP_NUM];
 131         guint32 trampoline_size [MONO_AOT_TRAMP_NUM];
 132 } MonoAotFileInfo;
 133
 134 /* Per-domain information maintained by the JIT */
 135 typedef struct
 136 {
 137         /* Maps MonoMethod's to a GSList of GOT slot addresses pointing to its code */
 138         GHashTable *jump_target_got_slot_hash;
 139         GHashTable *jump_target_hash;
 140         /* Maps methods/klasses to the address of the given type of trampoline */
 141         GHashTable *class_init_trampoline_hash;
 142         GHashTable *jump_trampoline_hash;
 143         GHashTable *jit_trampoline_hash;
 144         GHashTable *delegate_trampoline_hash;
 145         GHashTable *static_rgctx_trampoline_hash;
 146         GHashTable *llvm_vcall_trampoline_hash;
 147         /* maps MonoMethod -> MonoJitDynamicMethodInfo */
 148         GHashTable *dynamic_code_hash;
 149         GHashTable *method_code_hash;
 150         /* Maps methods to a RuntimeInvokeInfo structure */
 151         GHashTable *runtime_invoke_hash;
 152         /* Maps MonoMethod to a GPtrArray containing sequence point locations */
 153         GHashTable *seq_points;
 154         /* Debugger agent data */
 155         gpointer agent_info;
 156         /* Maps MonoMethod to an arch-specific structure */
 157         GHashTable *arch_seq_points;
 158 } MonoJitDomainInfo;
 159
 160 typedef struct {
 161         MonoJitInfo *ji;
 162         MonoCodeManager *code_mp;
 163 } MonoJitDynamicMethodInfo;
 164
 165 #define domain_jit_info(domain) ((MonoJitDomainInfo*)((domain)->runtime_info))
 166
 167 /* Arch-specific */
 168 typedef struct {
 169         int dummy;
 170 } MonoDynCallInfo;
 171
 172 /*
 173  * Possible frame types returned by the stack walker.
 174  */
 175 typedef enum {
 176         /* Normal managed frames */
 177         FRAME_TYPE_MANAGED = 0,
 178         /* Pseudo frame marking the start of a method invocation done by the soft debugger */
 179         FRAME_TYPE_DEBUGGER_INVOKE = 1,
 180         /* Frame for transitioning to native code */
 181         FRAME_TYPE_MANAGED_TO_NATIVE = 2,
 182         FRAME_TYPE_SENTINEL = 3
 183 } StackFrameType;
 184
 185 /*
 186  * Information about a stack frame
 187  */
 188 typedef struct {
 189         StackFrameType type;
 190         /*
 191          * For FRAME_TYPE_MANAGED.
 192          * For FRAME_TYPE_MANAGED_TO_NATIVE, the ji for the method which transitioned to
 193          * native code, if there is one, else NULL.
 194          */
 195         MonoJitInfo *ji;
 196         /*
 197          * For FRAME_TYPE_MANAGED_TO_NATIVE, it is either the method which transitioned
 198          * to native code, or the method which was JITted.
 199          */
 200         MonoMethod *method;
 201         /* The domain containing the code executed by this frame */
 202         MonoDomain *domain;
 203         gboolean managed;
 204         int native_offset;
 205         int il_offset;
 206         gpointer lmf;
 207 } StackFrameInfo;
 208
 209 #if 0
 210 #define mono_bitset_foreach_bit(set,b,n) \
 211         for (b = 0; b < n; b++)\
 212                 if (mono_bitset_test_fast(set,b))
 213 #define mono_bitset_foreach_bit_rev(set,b,n) \
 214         for (b = n - 1; b >= 0; b--)\
 215                 if (mono_bitset_test_fast(set,b))
 216 #else
 217 #define mono_bitset_foreach_bit(set,b,n) \
 218         for (b = mono_bitset_find_start (set); b < n && b >= 0; b = mono_bitset_find_first (set, b))
 219 #define mono_bitset_foreach_bit_rev(set,b,n) \
 220         for (b = mono_bitset_find_last (set, n - 1); b >= 0; b = b ? mono_bitset_find_last (set, b) : -1)
 221
 222 #endif
 223
 224 /*
 225  * Pull the list of opcodes
 226  */
 227 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
 228         a = i,
 229
 230 enum {
 231 #include "mono/cil/opcode.def"
 232         CEE_LASTOP
 233 };
 234 #undef OPDEF
 235
 236 #define MONO_VARINFO(cfg,varnum) (&(cfg)->vars [varnum])
 237
 238 #define MONO_INST_NULLIFY_SREGS(dest) do {                              \
 239                 (dest)->sreg1 = (dest)->sreg2 = (dest)->sreg3 = -1;     \
 240         } while (0)
 241
 242 #define MONO_INST_NEW(cfg,dest,op) do { \
 243                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 244                 (dest)->opcode = (op);  \
 245                 (dest)->dreg = -1;                          \
 246                 MONO_INST_NULLIFY_SREGS ((dest));           \
 247         (dest)->cil_code = (cfg)->ip;  \
 248         } while (0)
 249
 250 #define MONO_INST_NEW_CALL(cfg,dest,op) do {    \
 251                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoCallInst));   \
 252                 (dest)->inst.opcode = (op);     \
 253                 (dest)->inst.dreg = -1;                                 \
 254                 MONO_INST_NULLIFY_SREGS (&(dest)->inst);                \
 255         (dest)->inst.cil_code = (cfg)->ip;  \
 256         } while (0)
 257
 258 #define MONO_INST_NEW_CALL_ARG(cfg,dest,op) do {        \
 259                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoCallArgParm));        \
 260                 (dest)->ins.opcode = (op);      \
 261         } while (0)
 262
 263 #define MONO_ADD_INS(b,inst) do {       \
 264                 if ((b)->last_ins) {    \
 265                         (b)->last_ins->next = (inst);   \
 266             (inst)->prev = (b)->last_ins;   \
 267                         (b)->last_ins = (inst); \
 268                 } else {        \
 269                         (b)->code = (b)->last_ins = (inst);     \
 270                 }       \
 271         } while (0)
 272
 273 #define NULLIFY_INS(ins) do { \
 274         (ins)->opcode = OP_NOP; \
 275         (ins)->dreg = -1;                               \
 276         MONO_INST_NULLIFY_SREGS ((ins));                \
 277                 (ins)->ssa_op = MONO_SSA_NOP; \
 278     } while (0)
 279
 280 /* Remove INS from BB */
 281 #define MONO_REMOVE_INS(bb,ins) do { \
 282         if ((ins)->prev) \
 283             (ins)->prev->next = (ins)->next; \
 284         if ((ins)->next) \
 285             (ins)->next->prev = (ins)->prev; \
 286         if ((bb)->code == (ins)) \
 287             (bb)->code = (ins)->next; \
 288         if ((bb)->last_ins == (ins)) \
 289             (bb)->last_ins = (ins)->prev; \
 290     } while (0)
 291
 292 /* Remove INS from BB and nullify it */
 293 #define MONO_DELETE_INS(bb,ins) do { \
 294         MONO_REMOVE_INS ((bb), (ins)); \
 295         NULLIFY_INS ((ins)); \
 296     } while (0)
 297
 298 /*
 299  * this is used to determine when some branch optimizations are possible: we exclude FP compares
 300  * because they have weird semantics with NaNs.
 301  */
 302 #define MONO_IS_COND_BRANCH_OP(ins) (((ins)->opcode >= OP_LBEQ && (ins)->opcode <= OP_LBLT_UN) || ((ins)->opcode >= OP_FBEQ && (ins)->opcode <= OP_FBLT_UN) || ((ins)->opcode >= OP_IBEQ && (ins)->opcode <= OP_IBLT_UN))
 303 #define MONO_IS_COND_BRANCH_NOFP(ins) (MONO_IS_COND_BRANCH_OP(ins) && !(((ins)->opcode >= OP_FBEQ) && ((ins)->opcode <= OP_FBLT_UN)) && (!(ins)->inst_left || (ins)->inst_left->inst_left->type != STACK_R8))
 304
 305 #define MONO_IS_BRANCH_OP(ins) (MONO_IS_COND_BRANCH_OP(ins) || ((ins)->opcode == OP_BR) || ((ins)->opcode == OP_BR_REG) || ((ins)->opcode == OP_SWITCH))
 306
 307 #define MONO_IS_COND_EXC(ins) ((((ins)->opcode >= OP_COND_EXC_EQ) && ((ins)->opcode <= OP_COND_EXC_LT_UN)) || (((ins)->opcode >= OP_COND_EXC_IEQ) && ((ins)->opcode <= OP_COND_EXC_ILT_UN)))
 308
 309 #define MONO_IS_SETCC(ins) ((((ins)->opcode >= OP_CEQ) && ((ins)->opcode <= OP_CLT_UN)) || (((ins)->opcode >= OP_ICEQ) && ((ins)->opcode <= OP_ICLT_UN)) || (((ins)->opcode >= OP_LCEQ) && ((ins)->opcode <= OP_LCLT_UN)) || (((ins)->opcode >= OP_FCEQ) && ((ins)->opcode <= OP_FCLT_UN)))
 310
 311
 312 #define MONO_IS_LOAD_MEMBASE(ins) (((ins)->opcode >= OP_LOAD_MEMBASE) && ((ins)->opcode <= OP_LOADV_MEMBASE))
 313 #define MONO_IS_STORE_MEMBASE(ins) (((ins)->opcode >= OP_STORE_MEMBASE_REG) && ((ins)->opcode <= OP_STOREV_MEMBASE))
 314 #define MONO_IS_STORE_MEMINDEX(ins) (((ins)->opcode >= OP_STORE_MEMINDEX) && ((ins)->opcode <= OP_STORER8_MEMINDEX))
 315
 316 #define MONO_IS_CALL(ins) (((ins->opcode >= OP_VOIDCALL) && (ins->opcode <= OP_VOIDCALL_MEMBASE)) || ((ins->opcode >= OP_FCALL) && (ins->opcode <= OP_FCALL_MEMBASE)) || ((ins->opcode >= OP_LCALL) && (ins->opcode <= OP_LCALL_MEMBASE)) || ((ins->opcode >= OP_VCALL) && (ins->opcode <= OP_VCALL_MEMBASE)) || ((ins->opcode >= OP_CALL) && (ins->opcode <= OP_CALL_MEMBASE)) || ((ins->opcode >= OP_VCALL2) && (ins->opcode <= OP_VCALL2_MEMBASE)) || (ins->opcode == OP_TAILCALL))
 317
 318 #define MONO_IS_JUMP_TABLE(ins) (((ins)->opcode == OP_JUMP_TABLE) ? TRUE : ((((ins)->opcode == OP_AOTCONST) && (ins->inst_i1 == (gpointer)MONO_PATCH_INFO_SWITCH)) ? TRUE : ((ins)->opcode == OP_SWITCH) ? TRUE : ((((ins)->opcode == OP_GOT_ENTRY) && ((ins)->inst_right->inst_i1 == (gpointer)MONO_PATCH_INFO_SWITCH)) ? TRUE : FALSE)))
 319
 320 #define MONO_JUMP_TABLE_FROM_INS(ins) (((ins)->opcode == OP_JUMP_TABLE) ? (ins)->inst_p0 : (((ins)->opcode == OP_AOTCONST) && (ins->inst_i1 == (gpointer)MONO_PATCH_INFO_SWITCH) ? (ins)->inst_p0 : (((ins)->opcode == OP_SWITCH) ? (ins)->inst_p0 : ((((ins)->opcode == OP_GOT_ENTRY) && ((ins)->inst_right->inst_i1 == (gpointer)MONO_PATCH_INFO_SWITCH)) ? (ins)->inst_right->inst_p0 : NULL))))
 321
 322 /* FIXME: Add more instructions */
 323 #define MONO_INS_HAS_NO_SIDE_EFFECT(ins) (MONO_IS_MOVE (ins) || (ins->opcode == OP_ICONST) || (ins->opcode == OP_I8CONST) || MONO_IS_ZERO (ins) || (ins->opcode == OP_ADD_IMM) || (ins->opcode == OP_R8CONST) || (ins->opcode == OP_LADD_IMM) || (ins->opcode == OP_ISUB_IMM) || (ins->opcode == OP_IADD_IMM) || (ins->opcode == OP_INEG) || (ins->opcode == OP_LNEG) || (ins->opcode == OP_ISUB) || (ins->opcode == OP_CMOV_IGE) || (ins->opcode == OP_ISHL_IMM) || (ins->opcode == OP_ISHR_IMM) || (ins->opcode == OP_ISHR_UN_IMM) || (ins->opcode == OP_IAND_IMM) || (ins->opcode == OP_ICONV_TO_U1) || (ins->opcode == OP_ICONV_TO_I1) || (ins->opcode == OP_SEXT_I4) || (ins->opcode == OP_LCONV_TO_U1) || (ins->opcode == OP_ICONV_TO_U2) || (ins->opcode == OP_ICONV_TO_I2) || (ins->opcode == OP_LCONV_TO_I2))
 324
 325 #define MONO_METHOD_IS_FINAL(m) (((m)->flags & METHOD_ATTRIBUTE_FINAL) || ((m)->klass && ((m)->klass->flags & TYPE_ATTRIBUTE_SEALED)))
 326
 327
 328 #ifdef MONO_ARCH_SIMD_INTRINSICS
 329
 330 #define MONO_IS_PHI(ins) (((ins)->opcode == OP_PHI) || ((ins)->opcode == OP_FPHI) || ((ins)->opcode == OP_VPHI)  || ((ins)->opcode == OP_XPHI))
 331 #define MONO_IS_MOVE(ins) (((ins)->opcode == OP_MOVE) || ((ins)->opcode == OP_FMOVE) || ((ins)->opcode == OP_VMOVE) || ((ins)->opcode == OP_XMOVE))
 332 #define MONO_IS_NON_FP_MOVE(ins) (((ins)->opcode == OP_MOVE) || ((ins)->opcode == OP_VMOVE) || ((ins)->opcode == OP_XMOVE))
 333 #define MONO_IS_REAL_MOVE(ins) (((ins)->opcode == OP_MOVE) || ((ins)->opcode == OP_FMOVE) || ((ins)->opcode == OP_XMOVE))
 334 #define MONO_IS_ZERO(ins) (((ins)->opcode == OP_VZERO) || ((ins)->opcode == OP_XZERO))
 335
 336 #define MONO_CLASS_IS_SIMD(cfg, klass) (((cfg)->opt & MONO_OPT_SIMD) && (klass)->simd_type)
 337
 338 #else
 339
 340 #define MONO_IS_PHI(ins) (((ins)->opcode == OP_PHI) || ((ins)->opcode == OP_FPHI) || ((ins)->opcode == OP_VPHI))
 341 #define MONO_IS_MOVE(ins) (((ins)->opcode == OP_MOVE) || ((ins)->opcode == OP_FMOVE) || ((ins)->opcode == OP_VMOVE))
 342 #define MONO_IS_NON_FP_MOVE(ins) (((ins)->opcode == OP_MOVE) || ((ins)->opcode == OP_VMOVE))
 343 /*A real MOVE is one that isn't decomposed such as a VMOVE or LMOVE*/
 344 #define MONO_IS_REAL_MOVE(ins) (((ins)->opcode == OP_MOVE) || ((ins)->opcode == OP_FMOVE))
 345 #define MONO_IS_ZERO(ins) ((ins)->opcode == OP_VZERO)
 346
 347 #define MONO_CLASS_IS_SIMD(cfg, klass) (0)
 348
 349 #endif
 350
 351 typedef struct MonoInstList MonoInstList;
 352 typedef struct MonoInst MonoInst;
 353 typedef struct MonoCallInst MonoCallInst;
 354 typedef struct MonoCallArgParm MonoCallArgParm;
 355 typedef struct MonoEdge MonoEdge;
 356 typedef struct MonoMethodVar MonoMethodVar;
 357 typedef struct MonoBasicBlock MonoBasicBlock;
 358 typedef struct MonoLMF MonoLMF;
 359 typedef struct MonoSpillInfo MonoSpillInfo;
 360 typedef struct MonoTraceSpec MonoTraceSpec;
 361
 362 extern guint32 mono_jit_tls_id;
 363 extern MonoTraceSpec *mono_jit_trace_calls;
 364 extern gboolean mono_break_on_exc;
 365 extern int mono_exc_esp_offset;
 366 extern gboolean mono_compile_aot;
 367 extern gboolean mono_aot_only;
 368 extern gboolean mono_use_imt;
 369 extern MonoMethodDesc *mono_inject_async_exc_method;
 370 extern int mono_inject_async_exc_pos;
 371 extern MonoMethodDesc *mono_break_at_bb_method;
 372 extern int mono_break_at_bb_bb_num;
 373 extern gboolean check_for_pending_exc;
 374 extern gboolean disable_vtypes_in_regs;
 375 extern gboolean mono_verify_all;
 376 extern gboolean mono_dont_free_global_codeman;
 377 extern gboolean mono_do_x86_stack_align;
 378 extern const char *mono_build_date;
 379 extern gboolean mono_do_signal_chaining;
 380
 381 #define INS_INFO(opcode) (&ins_info [((opcode) - OP_START - 1) * 4])
 382
 383 extern const char ins_info[];
 384 extern const gint8 ins_sreg_counts [];
 385
 386 #define mono_inst_get_num_src_registers(ins) (ins_sreg_counts [(ins)->opcode - OP_START - 1])
 387 #define mono_inst_get_src_registers(ins, regs) (((regs) [0] = (ins)->sreg1), ((regs) [1] = (ins)->sreg2), ((regs) [2] = (ins)->sreg3), mono_inst_get_num_src_registers ((ins)))
 388
 389 #define MONO_BB_FOR_EACH_INS(bb, ins) for ((ins) = (bb)->code; (ins); (ins) = (ins)->next)
 390
 391 #define MONO_BB_FOR_EACH_INS_SAFE(bb, n, ins) for ((ins) = (bb)->code, n = (ins) ? (ins)->next : NULL; (ins); (ins) = (n), (n) = (ins) ? (ins)->next : NULL)
 392
 393 #define MONO_BB_FOR_EACH_INS_REVERSE_SAFE(bb, p, ins) for ((ins) = (bb)->last_ins, p = (ins) ? (ins)->prev : NULL; (ins); (ins) = (p), (p) = (ins) ? (ins)->prev : NULL)
 394
 395 #define mono_bb_first_ins(bb) (bb)->code
 396
 397 struct MonoEdge {
 398         MonoEdge *next;
 399         MonoBasicBlock *bb;
 400         /* add edge type? */
 401 };
 402
 403 struct MonoSpillInfo {
 404         int offset;
 405 };
 406
 407 /*
 408  * The IR-level extended basic block.
 409  *
 410  * A basic block can have multiple exits just fine, as long as the point of
 411  * 'departure' is the last instruction in the basic block. Extended basic
 412  * blocks, on the other hand, may have instructions that leave the block
 413  * midstream. The important thing is that they cannot be _entered_
 414  * midstream, ie, execution of a basic block (or extened bb) always start
 415  * at the beginning of the block, never in the middle.
 416  */
 417 struct MonoBasicBlock {
 418         MonoInst *last_ins;
 419
 420         /* the next basic block in the order it appears in IL */
 421         MonoBasicBlock *next_bb;
 422
 423         /*
 424          * Before instruction selection it is the first tree in the
 425          * forest and the first item in the list of trees. After
 426          * instruction selection it is the first instruction and the
 427          * first item in the list of instructions.
 428          */
 429         MonoInst *code;
 430
 431         /* unique block number identification */
 432         gint32 block_num;
 433
 434         gint32 dfn;
 435
 436         /* Basic blocks: incoming and outgoing counts and pointers */
 437         /* Each bb should only appear once in each array */
 438         gint16 out_count, in_count;
 439         MonoBasicBlock **in_bb;
 440         MonoBasicBlock **out_bb;
 441
 442         /* Points to the start of the CIL code that initiated this BB */
 443         unsigned char* cil_code;
 444
 445         /* Length of the CIL block */
 446         gint32 cil_length;
 447
 448         /* The address of the generated code, used for fixups */
 449         int native_offset;
 450         int max_offset;
 451         int max_length;
 452
 453         /* Visited and reachable flags */
 454         guint32 flags;
 455
 456         /*
 457          * SSA and loop based flags
 458          */
 459         MonoBitSet *dominators;
 460         MonoBitSet *dfrontier;
 461         MonoBasicBlock *idom;
 462         GSList *dominated;
 463         /* fast dominator algorithm */
 464         MonoBasicBlock *df_parent, *ancestor, *child, *label;
 465         MonoEdge *bucket;
 466         int size, sdom, idomn;
 467
 468         /* loop nesting and recognition */
 469         GList *loop_blocks;
 470         gint8  nesting;
 471         gint8  loop_body_start;
 472
 473         /*
 474          * Whenever the bblock is rarely executed so it should be emitted after
 475          * the function epilog.
 476          */
 477         guint out_of_line : 1;
 478         /* Caches the result of uselessness calculation during optimize_branches */
 479         guint not_useless : 1;
 480         /* Whenever the decompose_array_access_opts () pass needs to process this bblock */
 481         guint has_array_access : 1;
 482         /* Whenever this bblock is extended, ie. it has branches inside it */
 483         guint extended : 1;
 484         /* Whenever this bblock contains a OP_JUMP_TABLE instruction */
 485         guint has_jump_table : 1;
 486         /* Whenever this bblock contains an OP_CALL_HANDLER instruction */
 487         guint has_call_handler : 1;
 488
 489         /* use for liveness analysis */
 490         MonoBitSet *gen_set;
 491         MonoBitSet *kill_set;
 492         MonoBitSet *live_in_set;
 493         MonoBitSet *live_out_set;
 494
 495         /* fields to deal with non-empty stack slots at bb boundary */
 496         guint16 out_scount, in_scount;
 497         MonoInst **out_stack;
 498         MonoInst **in_stack;
 499
 500         /* we use that to prevent merging of bblocks covered by different clauses*/
 501         guint real_offset;
 502
 503         /*
 504          * The region encodes whether the basic block is inside
 505          * a finally, catch, filter or none of these.
 506          *
 507          * If the value is -1, then it is neither finally, catch nor filter
 508          *
 509          * Otherwise the format is:
 510          *
 511          *  Bits: |     0-3      |       4-7      |     8-31
 512          *        |              |                |
 513          *        | clause-flags |   MONO_REGION  | clause-index
 514          *
 515          */
 516         guint region;
 517
 518         /* The current symbolic register number, used in local register allocation. */
 519         guint32 max_vreg;
 520 };
 521
 522 /* BBlock flags */
 523 enum {
 524         BB_VISITED            = 1 << 0,
 525         BB_REACHABLE          = 1 << 1,
 526         BB_EXCEPTION_DEAD_OBJ = 1 << 2,
 527         BB_EXCEPTION_UNSAFE   = 1 << 3,
 528         BB_EXCEPTION_HANDLER  = 1 << 4
 529 };
 530
 531 typedef struct MonoMemcpyArgs {
 532         int size, align;
 533 } MonoMemcpyArgs;
 534
 535 typedef enum {
 536         LLVMArgNone,
 537         LLVMArgInIReg,
 538         LLVMArgInFPReg,
 539         LLVMArgVtypeInReg,
 540         LLVMArgVtypeByVal,
 541         LLVMArgVtypeRetAddr /* On on cinfo->ret */
 542 } LLVMArgStorage;
 543
 544 typedef struct {
 545         LLVMArgStorage storage;
 546
 547         /* Only if storage == ArgValuetypeInReg */
 548         LLVMArgStorage pair_storage [2];
 549 } LLVMArgInfo;
 550
 551 typedef struct {
 552         LLVMArgInfo ret;
 553         /* args [0] is for the this argument if it exists */
 554         LLVMArgInfo args [1];
 555 } LLVMCallInfo;
 556
 557 #define MONO_MAX_SRC_REGS       3
 558
 559 struct MonoInst {
 560         guint16 opcode;
 561         guint8  type; /* stack type */
 562         guint   ssa_op : 3;
 563         guint8  flags  : 5;
 564
 565         /* used by the register allocator */
 566         gint32 dreg, sreg1, sreg2, sreg3;
 567
 568         MonoInst *next, *prev;
 569
 570         union {
 571                 union {
 572                         MonoInst *src;
 573                         MonoMethodVar *var;
 574                         mgreg_t const_val;
 575 #if (SIZEOF_REGISTER > SIZEOF_VOID_P) && (G_BYTE_ORDER == G_BIG_ENDIAN)
 576                         struct {
 577                                 gpointer p[SIZEOF_REGISTER/SIZEOF_VOID_P];
 578                         } pdata;
 579 #else
 580                         gpointer p;
 581 #endif
 582                         MonoMethod *method;
 583                         MonoMethodSignature *signature;
 584                         MonoBasicBlock **many_blocks;
 585                         MonoBasicBlock *target_block;
 586                         MonoInst **args;
 587                         MonoType *vtype;
 588                         MonoClass *klass;
 589                         int *phi_args;
 590                         MonoCallInst *call_inst;
 591                 } op [2];
 592                 gint64 i8const;
 593                 double r8const;
 594         } data;
 595
 596         const unsigned char* cil_code; /* for debugging and bblock splitting */
 597
 598         /* used mostly by the backend to store additional info it may need */
 599         union {
 600                 gint32 reg3;
 601                 gint32 arg_info;
 602                 gint32 size;
 603                 MonoMemcpyArgs *memcpy_args; /* in OP_MEMSET and OP_MEMCPY */
 604                 gpointer data;
 605                 gint shift_amount;
 606                 gboolean is_pinvoke; /* for variables in the unmanaged marshal format */
 607                 gboolean record_cast_details; /* For CEE_CASTCLASS */
 608                 MonoInst *spill_var; /* for OP_ICONV_TO_R8_RAW and OP_FCONV_TO_R8_X */
 609                 guint16 source_opcode; /*OP_XCONV_R8_TO_I4 needs to know which op was used to do proper widening*/
 610         } backend;
 611
 612         MonoClass *klass;
 613 };
 614
 615 struct MonoCallInst {
 616         MonoInst inst;
 617         MonoMethodSignature *signature;
 618         MonoMethod *method;
 619         MonoInst **args;
 620         MonoInst *out_args;
 621         MonoInst *vret_var;
 622         gconstpointer fptr;
 623         guint stack_usage;
 624         guint virtual : 1;
 625         guint tail_call : 1;
 626         /* If this is TRUE, 'fptr' points to a MonoJumpInfo instead of an address. */
 627         guint fptr_is_patch : 1;
 628         /*
 629          * If this is true, then the call returns a vtype in a register using the same
 630          * calling convention as OP_CALL.
 631          */
 632         guint vret_in_reg : 1;
 633         /* Whenever there is an IMT argument and it is dynamic */
 634         guint dynamic_imt_arg : 1;
 635         /* Whenever there is an RGCTX argument */
 636         guint32 rgctx_reg : 1;
 637         regmask_t used_iregs;
 638         regmask_t used_fregs;
 639         GSList *out_ireg_args;
 640         GSList *out_freg_args;
 641 #ifdef ENABLE_LLVM
 642         LLVMCallInfo *cinfo;
 643 #endif
 644 };
 645
 646 struct MonoCallArgParm {
 647         MonoInst ins;
 648         gint32 size;
 649         gint32 offset;
 650         gint32 offPrm;
 651 };
 652
 653 /*
 654  * flags for MonoInst
 655  * Note: some of the values overlap, because they can't appear
 656  * in the same MonoInst.
 657  */
 658 enum {
 659         MONO_INST_HAS_METHOD = 1,
 660         /* temp local created by a DUP: used only within a BB */
 661         MONO_INST_IS_TEMP    = 1,
 662         MONO_INST_INIT       = 1, /* in localloc */
 663         MONO_INST_SINGLE_STEP_LOC = 1, /* in SEQ_POINT */
 664         MONO_INST_IS_DEAD    = 2,
 665         MONO_INST_TAILCALL   = 4,
 666         MONO_INST_VOLATILE   = 4,
 667         MONO_INST_NOTYPECHECK    = 4,
 668         MONO_INST_UNALIGNED  = 8,
 669     MONO_INST_CFOLD_TAKEN = 8, /* On branches */
 670     MONO_INST_CFOLD_NOT_TAKEN = 16, /* On branches */
 671         MONO_INST_DEFINITION_HAS_SIDE_EFFECTS = 8,
 672         /* the address of the variable has been taken */
 673         MONO_INST_INDIRECT   = 16,
 674         MONO_INST_NORANGECHECK   = 16,
 675 };
 676
 677 #define inst_c0 data.op[0].const_val
 678 #define inst_c1 data.op[1].const_val
 679 #define inst_i0 data.op[0].src
 680 #define inst_i1 data.op[1].src
 681 #if (SIZEOF_REGISTER > SIZEOF_VOID_P) && (G_BYTE_ORDER == G_BIG_ENDIAN)
 682 #define inst_p0 data.op[0].pdata.p[SIZEOF_REGISTER/SIZEOF_VOID_P - 1]
 683 #define inst_p1 data.op[1].pdata.p[SIZEOF_REGISTER/SIZEOF_VOID_P - 1]
 684 #else
 685 #define inst_p0 data.op[0].p
 686 #define inst_p1 data.op[1].p
 687 #endif
 688 #define inst_l  data.i8const
 689 #define inst_r  data.r8const
 690 #define inst_left  data.op[0].src
 691 #define inst_right data.op[1].src
 692
 693 #define inst_newa_len   data.op[0].src
 694 #define inst_newa_class data.op[1].klass
 695
 696 #define inst_var    data.op[0].var
 697 #define inst_vtype  data.op[1].vtype
 698 /* in branch instructions */
 699 #define inst_many_bb   data.op[1].many_blocks
 700 #define inst_target_bb data.op[0].target_block
 701 #define inst_true_bb   data.op[1].many_blocks[0]
 702 #define inst_false_bb  data.op[1].many_blocks[1]
 703
 704 #define inst_basereg sreg1
 705 #define inst_indexreg sreg2
 706 #define inst_destbasereg dreg
 707 #define inst_offset data.op[0].const_val
 708 #define inst_imm    data.op[1].const_val
 709 #define inst_call   data.op[1].call_inst
 710
 711 #define inst_phi_args   data.op[1].phi_args
 712
 713 /* instruction description for use in regalloc/scheduling */
 714 enum {
 715         MONO_INST_DEST,
 716         MONO_INST_SRC1,         /* we depend on the SRCs to be consecutive */
 717         MONO_INST_SRC2,
 718         MONO_INST_SRC3,
 719         MONO_INST_LEN,
 720         MONO_INST_CLOB,
 721         /* Unused, commented out to reduce the size of the mdesc tables
 722         MONO_INST_FLAGS,
 723         MONO_INST_COST,
 724         MONO_INST_DELAY,
 725         MONO_INST_RES,
 726         */
 727         MONO_INST_MAX
 728 };
 729
 730 typedef union {
 731         struct {
 732                 guint16 tid; /* tree number */
 733                 guint16 bid; /* block number */
 734         } pos ;
 735         guint32 abs_pos;
 736 } MonoPosition;
 737
 738 typedef struct {
 739         MonoPosition first_use, last_use;
 740 } MonoLiveRange;
 741
 742 typedef struct MonoLiveRange2 MonoLiveRange2;
 743
 744 struct MonoLiveRange2 {
 745         int from, to;
 746         MonoLiveRange2 *next;
 747 };
 748
 749 typedef struct {
 750         /* List of live ranges sorted by 'from' */
 751         MonoLiveRange2 *range;
 752         MonoLiveRange2 *last_range;
 753 } MonoLiveInterval;
 754
 755 /*
 756  * Additional information about a variable
 757  */
 758 struct MonoMethodVar {
 759         guint           idx; /* inside cfg->varinfo, cfg->vars */
 760         MonoLiveRange   range; /* generated by liveness analysis */
 761         MonoLiveInterval *interval; /* generated by liveness analysis */
 762         int             reg; /* != -1 if allocated into a register */
 763         int             spill_costs;
 764         MonoBitSet     *def_in; /* used by SSA */
 765         MonoInst       *def;    /* used by SSA */
 766         MonoBasicBlock *def_bb; /* used by SSA */
 767         GList          *uses;   /* used by SSA */
 768         char            cpstate;  /* used by SSA conditional  constant propagation */
 769         /* The native offsets corresponding to the live range of the variable */
 770         gint32         live_range_start, live_range_end;
 771         /*
 772          * cfg->varinfo [idx]->dreg could be replaced for OP_REGVAR, this contains the
 773          * original vreg.
 774          */
 775         gint32         vreg;
 776 };
 777
 778 typedef struct {
 779         gpointer          end_of_stack;
 780         guint32           stack_size;
 781 #if !defined(HAVE_KW_THREAD) || !defined(MONO_ARCH_ENABLE_MONO_LMF_VAR)
 782         MonoLMF          *lmf;
 783 #endif
 784         MonoLMF          *first_lmf;
 785         gpointer         restore_stack_prot;
 786         guint32          handling_stack_ovf;
 787         gpointer         signal_stack;
 788         guint32          signal_stack_size;
 789         gpointer         stack_ovf_guard_base;
 790         guint32          stack_ovf_guard_size;
 791         void            (*abort_func) (MonoObject *object);
 792         /* Used to implement --debug=casts */
 793         MonoClass       *class_cast_from, *class_cast_to;
 794 } MonoJitTlsData;
 795
 796 typedef enum {
 797 #define PATCH_INFO(a,b) MONO_PATCH_INFO_ ## a,
 798 #include "patch-info.h"
 799 #undef PATCH_INFO
 800         MONO_PATCH_INFO_NUM
 801 } MonoJumpInfoType;
 802
 803 /*
 804  * We need to store the image which the token refers to along with the token,
 805  * since the image might not be the same as the image of the method which
 806  * contains the relocation, because of inlining.
 807  */
 808 typedef struct MonoJumpInfoToken {
 809         MonoImage *image;
 810         guint32 token;
 811         gboolean has_context;
 812         MonoGenericContext context;
 813 } MonoJumpInfoToken;
 814
 815 typedef struct MonoJumpInfoBBTable {
 816         MonoBasicBlock **table;
 817         int table_size;
 818 } MonoJumpInfoBBTable;
 819
 820 typedef struct MonoJumpInfoRgctxEntry MonoJumpInfoRgctxEntry;
 821
 822 typedef struct MonoJumpInfo MonoJumpInfo;
 823 struct MonoJumpInfo {
 824         MonoJumpInfo *next;
 825         union {
 826                 int i;
 827                 guint8 *p;
 828                 MonoInst *label;
 829         } ip;
 830
 831         MonoJumpInfoType type;
 832         union {
 833                 gconstpointer   target;
 834 #if SIZEOF_VOID_P == 8
 835                 gint64          offset;
 836 #else
 837                 int             offset;
 838 #endif
 839                 MonoBasicBlock *bb;
 840                 MonoInst       *inst;
 841                 MonoMethod     *method;
 842                 MonoClass      *klass;
 843                 MonoClassField *field;
 844                 MonoImage      *image;
 845                 MonoVTable     *vtable;
 846                 const char     *name;
 847                 MonoJumpInfoToken  *token;
 848                 MonoJumpInfoBBTable *table;
 849                 MonoJumpInfoRgctxEntry *rgctx_entry;
 850         } data;
 851 };
 852
 853 /* Contains information describing an rgctx entry */
 854 struct MonoJumpInfoRgctxEntry {
 855         MonoMethod *method;
 856         gboolean in_mrgctx;
 857         MonoJumpInfo *data; /* describes the data to be loaded */
 858         int info_type;
 859 };
 860
 861 typedef enum {
 862         MONO_TRAMPOLINE_JIT,
 863         MONO_TRAMPOLINE_JUMP,
 864         MONO_TRAMPOLINE_CLASS_INIT,
 865         MONO_TRAMPOLINE_GENERIC_CLASS_INIT,
 866         MONO_TRAMPOLINE_RGCTX_LAZY_FETCH,
 867         MONO_TRAMPOLINE_AOT,
 868         MONO_TRAMPOLINE_AOT_PLT,
 869         MONO_TRAMPOLINE_DELEGATE,
 870         MONO_TRAMPOLINE_RESTORE_STACK_PROT,
 871         MONO_TRAMPOLINE_GENERIC_VIRTUAL_REMOTING,
 872         MONO_TRAMPOLINE_MONITOR_ENTER,
 873         MONO_TRAMPOLINE_MONITOR_EXIT,
 874 #ifdef ENABLE_LLVM
 875         MONO_TRAMPOLINE_LLVM_VCALL,
 876 #endif
 877         MONO_TRAMPOLINE_NUM
 878 } MonoTrampolineType;
 879
 880 #define MONO_TRAMPOLINE_TYPE_MUST_RETURN(t)             \
 881         ((t) == MONO_TRAMPOLINE_CLASS_INIT ||           \
 882          (t) == MONO_TRAMPOLINE_GENERIC_CLASS_INIT ||   \
 883          (t) == MONO_TRAMPOLINE_RESTORE_STACK_PROT ||   \
 884          (t) == MONO_TRAMPOLINE_RGCTX_LAZY_FETCH ||     \
 885          (t) == MONO_TRAMPOLINE_MONITOR_ENTER ||        \
 886          (t) == MONO_TRAMPOLINE_MONITOR_EXIT)
 887
 888 /* optimization flags */
 889 #define OPTFLAG(id,shift,name,descr) MONO_OPT_ ## id = 1 << shift,
 890 enum {
 891 #include "optflags-def.h"
 892         MONO_OPT_LAST
 893 };
 894
 895 /* Bit-fields in the MonoBasicBlock.region */
 896 #define MONO_REGION_TRY       0
 897 #define MONO_REGION_FINALLY  16
 898 #define MONO_REGION_CATCH    32
 899 #define MONO_REGION_FAULT    64         /* Currently unused */
 900 #define MONO_REGION_FILTER  128
 901
 902 #define MONO_BBLOCK_IS_IN_REGION(bblock, regtype) (((bblock)->region & (0xf << 4)) == (regtype))
 903
 904 #define get_vreg_to_inst(cfg, vreg) ((vreg) < (cfg)->vreg_to_inst_len ? (cfg)->vreg_to_inst [(vreg)] : NULL)
 905
 906 #define vreg_is_volatile(cfg, vreg) (G_UNLIKELY (get_vreg_to_inst ((cfg), (vreg)) && (get_vreg_to_inst ((cfg), (vreg))->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))))
 907
 908 /*
 909  * Control Flow Graph and compilation unit information
 910  */
 911 typedef struct {
 912         MonoMethod      *method;
 913         MonoMemPool     *mempool;
 914         MonoInst       **varinfo;
 915         MonoMethodVar   *vars;
 916         MonoInst        *ret;
 917         MonoBasicBlock  *bb_entry;
 918         MonoBasicBlock  *bb_exit;
 919         MonoBasicBlock  *bb_init;
 920         MonoBasicBlock **bblocks;
 921         MonoBasicBlock **cil_offset_to_bb;
 922         MonoMemPool     *state_pool; /* used by instruction selection */
 923         MonoBasicBlock  *cbb;        /* used by instruction selection */
 924         MonoInst        *prev_ins;   /* in decompose */
 925         MonoJumpInfo    *patch_info;
 926         MonoJitInfo     *jit_info;
 927         MonoJitDynamicMethodInfo *dynamic_info;
 928         guint            num_bblocks;
 929         guint            locals_start;
 930         guint            num_varinfo; /* used items in varinfo */
 931         guint            varinfo_count; /* total storage in varinfo */
 932         gint             stack_offset;
 933         gint             max_ireg;
 934         gint             cil_offset_to_bb_len;
 935         gint             locals_min_stack_offset, locals_max_stack_offset;
 936         MonoRegState    *rs;
 937         MonoSpillInfo   *spill_info [16]; /* machine register spills */
 938         gint             spill_count;
 939         gint             spill_info_len [16];
 940         /* unsigned char   *cil_code; */
 941         MonoMethod      *inlined_method; /* the method which is currently inlined */
 942         MonoInst        *domainvar; /* a cache for the current domain */
 943         MonoInst        *got_var; /* Global Offset Table variable */
 944         MonoInst        **locals;
 945         MonoInst        *rgctx_var; /* Runtime generic context variable (for static generic methods) */
 946         MonoInst        **args;
 947         MonoType        **arg_types;
 948         MonoMethod      *current_method; /* The method currently processed by method_to_ir () */
 949         MonoMethod      *method_to_register; /* The method to register in JIT info tables */
 950         MonoGenericContext *generic_context;
 951
 952         /*
 953          * This variable represents the hidden argument holding the vtype
 954          * return address. If the method returns something other than a vtype, or
 955          * the vtype is returned in registers this is NULL.
 956          */
 957         MonoInst        *vret_addr;
 958
 959         /*
 960          * This is used to initialize the cil_code field of MonoInst's.
 961          */
 962         const unsigned char *ip;
 963
 964         struct MonoAliasingInformation *aliasing_info;
 965
 966         /* A hashtable of region ID-> SP var mappings */
 967         /* An SP var is a place to store the stack pointer (used by handlers)*/
 968         GHashTable      *spvars;
 969
 970         /* A hashtable of region ID -> EX var mappings */
 971         /* An EX var stores the exception object passed to catch/filter blocks */
 972         GHashTable      *exvars;
 973
 974         GList           *ldstr_list; /* used by AOT */
 975
 976         MonoDomain      *domain;
 977
 978         guint            real_offset;
 979         GHashTable      *cbb_hash;
 980
 981         /* The current virtual register number */
 982         guint32 next_vreg;
 983
 984         MonoGenericSharingContext *generic_sharing_context;
 985
 986         unsigned char   *cil_start;
 987         unsigned char   *native_code;
 988         guint            code_size;
 989         guint            code_len;
 990         guint            prolog_end;
 991         guint            epilog_begin;
 992         regmask_t        used_int_regs;
 993         guint32          opt;
 994         guint32          prof_options;
 995         guint32          flags;
 996         guint32          comp_done;
 997         guint32          verbose_level;
 998         guint32          stack_usage;
 999         guint32          param_area;
1000         guint32          frame_reg;
1001         gint32           sig_cookie;
1002         guint            disable_aot : 1;
1003         guint            disable_ssa : 1;
1004         guint            disable_llvm : 1;
1005         guint            enable_extended_bblocks : 1;
1006         guint            run_cctors : 1;
1007         guint            need_lmf_area : 1;
1008         guint            compile_aot : 1;
1009         guint            compile_llvm : 1;
1010         guint            got_var_allocated : 1;
1011         guint            ret_var_is_local : 1;
1012         guint            ret_var_set : 1;
1013         guint            globalra : 1;
1014         guint            unverifiable : 1;
1015         guint            skip_visibility : 1;
1016         guint            disable_reuse_registers : 1;
1017         guint            disable_reuse_stack_slots : 1;
1018         guint            disable_initlocals_opt : 1;
1019         guint            disable_omit_fp : 1;
1020         guint            disable_vreg_to_lvreg : 1;
1021         guint            disable_deadce_vars : 1;
1022         guint            disable_out_of_line_bblocks : 1;
1023         guint            extend_live_ranges : 1;
1024         guint            has_got_slots : 1;
1025         guint            uses_rgctx_reg : 1;
1026         guint            uses_vtable_reg : 1;
1027         guint            uses_simd_intrinsics : 1;
1028         guint            keep_cil_nops : 1;
1029         guint            gen_seq_points : 1;
1030         gpointer         debug_info;
1031         guint32          lmf_offset;
1032     guint16          *intvars;
1033         MonoProfileCoverageInfo *coverage_info;
1034         GHashTable       *token_info_hash;
1035         MonoCompileArch  arch;
1036         guint32          inline_depth;
1037         guint32          exception_type;        /* MONO_EXCEPTION_* */
1038         guint32          exception_data;
1039         char*            exception_message;
1040         gpointer         exception_ptr;
1041
1042         guint8 *         encoded_unwind_ops;
1043         guint32          encoded_unwind_ops_len;
1044         GSList*          unwind_ops;
1045
1046         /* Fields used by the local reg allocator */
1047         void*            reginfo;
1048         int              reginfo_len;
1049
1050         /* Maps vregs to their associated MonoInst's */
1051         /* vregs with an associated MonoInst are 'global' while others are 'local' */
1052         MonoInst **vreg_to_inst;
1053
1054         /* Size of above array */
1055         guint32 vreg_to_inst_len;
1056
1057         /*
1058          * The original method to compile, differs from 'method' when doing generic
1059          * sharing.
1060          */
1061         MonoMethod *orig_method;
1062
1063         /* Patches which describe absolute addresses embedded into the native code */
1064         GHashTable *abs_patches;
1065
1066         /* If the arch passes valuetypes by address, then for methods
1067            which use JMP the arch code should use these local
1068            variables to store the addresses of incoming valuetypes.
1069            The addresses should be stored in mono_arch_emit_prolog()
1070            and can be used when emitting code for OP_JMP.  See
1071            mini-ppc.c. */
1072         MonoInst **tailcall_valuetype_addrs;
1073
1074         /* Used to implement iconv_to_r8_raw on archs that can't do raw
1075         copy between an ireg and a freg. This is an int32 var.*/
1076         MonoInst *iconv_raw_var;
1077
1078         /* Used to implement fconv_to_r8_x. This is a double (8 bytes) var.*/
1079         MonoInst *fconv_to_r8_x_var;
1080
1081         /*Use to implement simd constructors. This is a vector (16 bytes) var.*/
1082         MonoInst *simd_ctor_var;
1083
1084         /* Used to implement dyn_call */
1085         MonoInst *dyn_call_var;
1086
1087         /*
1088          * List of sequence points represented as IL offset+native offset pairs.
1089          * Allocated using glib.
1090          * IL offset can be -1 or 0xffffff to refer to the sequence points
1091          * inside the prolog and epilog used to implement method entry/exit events.
1092          */
1093         GPtrArray *seq_points;
1094
1095         /* Used by AOT */
1096         guint32 got_offset;
1097 } MonoCompile;
1098
1099 typedef enum {
1100         MONO_CFG_HAS_ALLOCA = 1 << 0,
1101         MONO_CFG_HAS_CALLS  = 1 << 1,
1102         MONO_CFG_HAS_LDELEMA  = 1 << 2,
1103         MONO_CFG_HAS_VARARGS  = 1 << 3,
1104         MONO_CFG_HAS_TAIL     = 1 << 4,
1105         MONO_CFG_HAS_FPOUT    = 1 << 5, /* there are fp values passed in int registers */
1106         MONO_CFG_HAS_SPILLUP  = 1 << 6, /* spill var slots are allocated from bottom to top */
1107         MONO_CFG_HAS_CHECK_THIS  = 1 << 7,
1108         MONO_CFG_HAS_ARRAY_ACCESS = 1 << 8
1109 } MonoCompileFlags;
1110
1111 typedef struct {
1112         gulong methods_compiled;
1113         gulong methods_aot;
1114         gulong methods_lookups;
1115         gulong method_trampolines;
1116         gulong allocate_var;
1117         gulong cil_code_size;
1118         gulong native_code_size;
1119         gulong code_reallocs;
1120         gulong max_code_size_ratio;
1121         gulong biggest_method_size;
1122         gulong allocated_code_size;
1123         gulong inlineable_methods;
1124         gulong inlined_methods;
1125         gulong basic_blocks;
1126         gulong max_basic_blocks;
1127         gulong locals_stack_size;
1128         gulong regvars;
1129         gulong cas_declsec_check;
1130         gulong cas_linkdemand_icall;
1131         gulong cas_linkdemand_pinvoke;
1132         gulong cas_linkdemand_aptc;
1133         gulong cas_linkdemand;
1134         gulong cas_demand_generation;
1135         gulong generic_virtual_invocations;
1136         char *max_ratio_method;
1137         char *biggest_method;
1138         gboolean enabled;
1139 } MonoJitStats;
1140
1141 extern MonoJitStats mono_jit_stats;
1142
1143 /* values for MonoInst.ssa_op */
1144 enum {
1145         MONO_SSA_NOP = 0,
1146         MONO_SSA_ADDRESS_TAKEN = 1,
1147         MONO_SSA_LOAD = 2,
1148         MONO_SSA_STORE = 4,
1149         MONO_SSA_LOAD_STORE = MONO_SSA_LOAD|MONO_SSA_STORE,
1150         MONO_SSA_INDIRECT_LOAD = MONO_SSA_LOAD|MONO_SSA_ADDRESS_TAKEN,
1151         MONO_SSA_INDIRECT_STORE = MONO_SSA_STORE|MONO_SSA_ADDRESS_TAKEN,
1152         MONO_SSA_INDIRECT_LOAD_STORE =
1153         MONO_SSA_LOAD|MONO_SSA_STORE|MONO_SSA_ADDRESS_TAKEN
1154 };
1155
1156 /* opcodes: value assigned after all the CIL opcodes */
1157 #ifdef MINI_OP
1158 #undef MINI_OP
1159 #endif
1160 #ifdef MINI_OP3
1161 #undef MINI_OP3
1162 #endif
1163 #define MINI_OP(a,b,dest,src1,src2) a,
1164 #define MINI_OP3(a,b,dest,src1,src2,src3) a,
1165 enum {
1166         OP_START = MONO_CEE_LAST - 1,
1167 #include "mini-ops.h"
1168         OP_LAST
1169 };
1170 #undef MINI_OP
1171 #undef MINI_OP3
1172
1173 #if SIZEOF_VOID_P == 8
1174 #define OP_PCONST OP_I8CONST
1175 #define OP_PADD OP_LADD
1176 #define OP_PADD_IMM OP_LADD_IMM
1177 #define OP_PSUB OP_LSUB
1178 #define OP_PMUL OP_LMUL
1179 #define OP_PMUL_IMM OP_LMUL_IMM
1180 #define OP_PNEG OP_LNEG
1181 #define OP_PCONV_TO_I1 OP_LCONV_TO_I1
1182 #define OP_PCONV_TO_U1 OP_LCONV_TO_U1
1183 #define OP_PCONV_TO_I2 OP_LCONV_TO_I2
1184 #define OP_PCONV_TO_U2 OP_LCONV_TO_U2
1185 #define OP_PCONV_TO_OVF_I1_UN OP_LCONV_TO_OVF_I1_UN
1186 #define OP_PCONV_TO_OVF_I1 OP_LCONV_TO_OVF_I1
1187 #define OP_PBEQ OP_LBEQ
1188 #define OP_PCEQ OP_LCEQ
1189 #define OP_PBNE_UN OP_LBNE_UN
1190 #define OP_PBGE_UN OP_LBGE_UN
1191 #define OP_PBLT_UN OP_LBLT_UN
1192 #define OP_PBGE OP_LBGE
1193 #define OP_STOREP_MEMBASE_REG OP_STOREI8_MEMBASE_REG
1194 #define OP_STOREP_MEMBASE_IMM OP_STOREI8_MEMBASE_IMM
1195 #else
1196 #define OP_PCONST OP_ICONST
1197 #define OP_PADD OP_IADD
1198 #define OP_PADD_IMM OP_IADD_IMM
1199 #define OP_PSUB OP_ISUB
1200 #define OP_PMUL OP_IMUL
1201 #define OP_PMUL_IMM OP_IMUL_IMM
1202 #define OP_PNEG OP_INEG
1203 #define OP_PCONV_TO_I1 OP_ICONV_TO_I1
1204 #define OP_PCONV_TO_U1 OP_ICONV_TO_U1
1205 #define OP_PCONV_TO_I2 OP_ICONV_TO_I2
1206 #define OP_PCONV_TO_U2 OP_ICONV_TO_U2
1207 #define OP_PCONV_TO_OVF_I1_UN OP_ICONV_TO_OVF_I1_UN
1208 #define OP_PCONV_TO_OVF_I1 OP_ICONV_TO_OVF_I1
1209 #define OP_PBEQ OP_IBEQ
1210 #define OP_PCEQ OP_ICEQ
1211 #define OP_PBNE_UN OP_IBNE_UN
1212 #define OP_PBGE_UN OP_IBGE_UN
1213 #define OP_PBLT_UN OP_IBLT_UN
1214 #define OP_PBGE OP_IBGE
1215 #define OP_STOREP_MEMBASE_REG OP_STOREI4_MEMBASE_REG
1216 #define OP_STOREP_MEMBASE_IMM OP_STOREI4_MEMBASE_IMM
1217 #endif
1218
1219 /* Opcodes to load/store regsize quantities */
1220 #ifdef __mono_ilp32__
1221 #define OP_LOADR_MEMBASE OP_LOADI8_MEMBASE
1222 #define OP_STORER_MEMBASE_REG OP_STOREI8_MEMBASE_REG
1223 #else
1224 #define OP_LOADR_MEMBASE OP_LOAD_MEMBASE
1225 #define OP_STORER_MEMBASE_REG OP_STORE_MEMBASE_REG
1226 #endif
1227
1228 typedef enum {
1229         STACK_INV,
1230         STACK_I4,
1231         STACK_I8,
1232         STACK_PTR,
1233         STACK_R8,
1234         STACK_MP,
1235         STACK_OBJ,
1236         STACK_VTYPE,
1237         STACK_MAX
1238 } MonoStackType;
1239
1240 typedef struct {
1241         union {
1242                 double   r8;
1243                 gint32   i4;
1244                 gint64   i8;
1245                 gpointer p;
1246                 MonoClass *klass;
1247         } data;
1248         int type;
1249 } StackSlot;
1250
1251 #if HAVE_ARRAY_ELEM_INIT
1252 extern const guint8 mono_burg_arity [];
1253 #else
1254 extern guint8 mono_burg_arity [];
1255 #endif
1256
1257 extern const char MONO_ARCH_CPU_SPEC [] MONO_INTERNAL;
1258 #define MONO_ARCH_CPU_SPEC_IDX_COMBINE(a) a ## _idx
1259 #define MONO_ARCH_CPU_SPEC_IDX(a) MONO_ARCH_CPU_SPEC_IDX_COMBINE(a)
1260 extern const guint16 MONO_ARCH_CPU_SPEC_IDX(MONO_ARCH_CPU_SPEC) [] MONO_INTERNAL;
1261 #define ins_get_spec(op) ((const char*)&MONO_ARCH_CPU_SPEC + MONO_ARCH_CPU_SPEC_IDX(MONO_ARCH_CPU_SPEC)[(op) - OP_LOAD])
1262
1263 enum {
1264         MONO_COMP_DOM = 1,
1265         MONO_COMP_IDOM = 2,
1266         MONO_COMP_DFRONTIER = 4,
1267         MONO_COMP_DOM_REV = 8,
1268         MONO_COMP_LIVENESS = 16,
1269         MONO_COMP_SSA = 32,
1270         MONO_COMP_SSA_DEF_USE = 64,
1271         MONO_COMP_REACHABILITY = 128,
1272         MONO_COMP_LOOPS = 256
1273 };
1274
1275 typedef enum {
1276         MONO_GRAPH_CFG = 1,
1277         MONO_GRAPH_DTREE = 2,
1278         MONO_GRAPH_CFG_CODE = 4,
1279         MONO_GRAPH_CFG_SSA = 8,
1280         MONO_GRAPH_CFG_OPTCODE = 16
1281 } MonoGraphOptions;
1282
1283 typedef struct {
1284         guint16 size;
1285         guint16 offset;
1286         guint8  pad;
1287 } MonoJitArgumentInfo;
1288
1289 typedef struct {
1290         gboolean handle_sigint;
1291         gboolean keep_delegates;
1292         gboolean collect_pagefault_stats;
1293         gboolean break_on_unverified;
1294         gboolean better_cast_details;
1295         gboolean mdb_optimizations;
1296         gboolean no_gdb_backtrace;
1297         gboolean suspend_on_sigsegv;
1298         gboolean dyn_runtime_invoke;
1299         gboolean gdb;
1300         gboolean gen_seq_points;
1301 } MonoDebugOptions;
1302
1303 enum {
1304         BRANCH_NOT_TAKEN,
1305         BRANCH_TAKEN,
1306         BRANCH_UNDEF
1307 };
1308
1309 typedef enum {
1310         CMP_EQ,
1311         CMP_NE,
1312         CMP_LE,
1313         CMP_GE,
1314         CMP_LT,
1315         CMP_GT,
1316         CMP_LE_UN,
1317         CMP_GE_UN,
1318         CMP_LT_UN,
1319         CMP_GT_UN
1320 } CompRelation;
1321
1322 typedef enum {
1323         CMP_TYPE_L,
1324         CMP_TYPE_I,
1325         CMP_TYPE_F
1326 } CompType;
1327
1328 /* Implicit exceptions */
1329 enum {
1330         MONO_EXC_INDEX_OUT_OF_RANGE,
1331         MONO_EXC_OVERFLOW,
1332         MONO_EXC_ARITHMETIC,
1333         MONO_EXC_DIVIDE_BY_ZERO,
1334         MONO_EXC_INVALID_CAST,
1335         MONO_EXC_NULL_REF,
1336         MONO_EXC_ARRAY_TYPE_MISMATCH,
1337         MONO_EXC_INTRINS_NUM
1338 };
1339
1340 enum {
1341         MINI_TOKEN_SOURCE_CLASS,
1342         MINI_TOKEN_SOURCE_METHOD,
1343         MINI_TOKEN_SOURCE_FIELD
1344 };
1345
1346 /*
1347  * This structures contains information about a trampoline function required by
1348  * the AOT compiler in full-aot mode.
1349  */
1350 typedef struct
1351 {
1352         guint8 *code;
1353         guint32 code_size;
1354         char *name;
1355 } MonoAotTrampInfo;
1356
1357 typedef void (*MonoInstFunc) (MonoInst *tree, gpointer data);
1358
1359 /* main function */
1360 int         mono_main                      (int argc, char* argv[]);
1361 void        mono_set_defaults              (int verbose_level, guint32 opts);
1362 MonoDomain* mini_init                      (const char *filename, const char *runtime_version) MONO_INTERNAL;
1363 void        mini_cleanup                   (MonoDomain *domain) MONO_INTERNAL;
1364 MonoDebugOptions *mini_get_debug_options   (void) MONO_INTERNAL;
1365 char*       mono_get_runtime_build_info    (void) MONO_INTERNAL;
1366
1367 /* helper methods */
1368 void      mono_disable_optimizations       (guint32 opts) MONO_INTERNAL;
1369 MonoJumpInfoToken* mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token) MONO_INTERNAL;
1370 MonoJumpInfoToken* mono_jump_info_token_new2 (MonoMemPool *mp, MonoImage *image, guint32 token, MonoGenericContext *context) MONO_INTERNAL;
1371 MonoInst* mono_find_spvar_for_region        (MonoCompile *cfg, int region) MONO_INTERNAL;
1372 void      mono_precompile_assemblies        (void) MONO_INTERNAL;
1373 int       mono_parse_default_optimizations  (const char* p);
1374 void      mono_bblock_add_inst              (MonoBasicBlock *bb, MonoInst *inst) MONO_INTERNAL;
1375 void      mono_bblock_insert_after_ins      (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert) MONO_INTERNAL;
1376 void      mono_bblock_insert_before_ins     (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert) MONO_INTERNAL;
1377 void      mono_verify_bblock                (MonoBasicBlock *bb) MONO_INTERNAL;
1378 void      mono_verify_cfg                   (MonoCompile *cfg) MONO_INTERNAL;
1379 void      mono_constant_fold                (MonoCompile *cfg) MONO_INTERNAL;
1380 MonoInst* mono_constant_fold_ins            (MonoCompile *cfg, MonoInst *ins, MonoInst *arg1, MonoInst *arg2, gboolean overwrite) MONO_INTERNAL;
1381 int       mono_eval_cond_branch             (MonoInst *branch) MONO_INTERNAL;
1382 int       mono_is_power_of_two              (guint32 val) MONO_INTERNAL;
1383 void      mono_cprop_local                  (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst **acp, int acp_size) MONO_INTERNAL;
1384 MonoInst* mono_compile_create_var           (MonoCompile *cfg, MonoType *type, int opcode) MONO_INTERNAL;
1385 MonoInst* mono_compile_create_var_for_vreg  (MonoCompile *cfg, MonoType *type, int opcode, int vreg) MONO_INTERNAL;
1386 void      mono_compile_make_var_load        (MonoCompile *cfg, MonoInst *dest, gssize var_index) MONO_INTERNAL;
1387 MonoInst* mono_compile_create_var_load      (MonoCompile *cfg, gssize var_index) MONO_INTERNAL;
1388 MonoInst* mono_compile_create_var_store     (MonoCompile *cfg, gssize var_index, MonoInst *value) MONO_INTERNAL;
1389 MonoType* mono_type_from_stack_type         (MonoInst *ins) MONO_INTERNAL;
1390 guint32   mono_alloc_ireg                   (MonoCompile *cfg) MONO_INTERNAL;
1391 guint32   mono_alloc_freg                   (MonoCompile *cfg) MONO_INTERNAL;
1392 guint32   mono_alloc_preg                   (MonoCompile *cfg) MONO_INTERNAL;
1393 guint32   mono_alloc_dreg                   (MonoCompile *cfg, MonoStackType stack_type) MONO_INTERNAL;
1394
1395 void      mono_link_bblock                  (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to) MONO_INTERNAL;
1396 void      mono_unlink_bblock                (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to) MONO_INTERNAL;
1397 gboolean  mono_bblocks_linked               (MonoBasicBlock *bb1, MonoBasicBlock *bb2) MONO_INTERNAL;
1398 void      mono_remove_bblock                (MonoCompile *cfg, MonoBasicBlock *bb) MONO_INTERNAL;
1399 void      mono_nullify_basic_block          (MonoBasicBlock *bb) MONO_INTERNAL;
1400 void      mono_merge_basic_blocks           (MonoCompile *cfg, MonoBasicBlock *bb, MonoBasicBlock *bbn) MONO_INTERNAL;
1401 void      mono_optimize_branches            (MonoCompile *cfg) MONO_INTERNAL;
1402
1403 void      mono_blockset_print               (MonoCompile *cfg, MonoBitSet *set, const char *name, guint idom) MONO_INTERNAL;
1404 void      mono_print_ins_index              (int i, MonoInst *ins) MONO_INTERNAL;
1405 void      mono_print_ins                    (MonoInst *ins) MONO_INTERNAL;
1406 void      mono_print_bb                     (MonoBasicBlock *bb, const char *msg) MONO_INTERNAL;
1407 void      mono_print_code                   (MonoCompile *cfg, const char *msg) MONO_INTERNAL;
1408 void      mono_print_method_from_ip         (void *ip);
1409 char     *mono_pmip                         (void *ip);
1410 const char* mono_inst_name                  (int op);
1411 void      mono_inst_set_src_registers       (MonoInst *ins, int *regs) MONO_INTERNAL;
1412 int       mono_op_to_op_imm                 (int opcode) MONO_INTERNAL;
1413 int       mono_op_imm_to_op                 (int opcode) MONO_INTERNAL;
1414 int       mono_load_membase_to_load_mem     (int opcode) MONO_INTERNAL;
1415 guint     mono_type_to_load_membase         (MonoCompile *cfg, MonoType *type) MONO_INTERNAL;
1416 guint     mono_type_to_store_membase        (MonoCompile *cfg, MonoType *type) MONO_INTERNAL;
1417 guint     mini_type_to_stind                (MonoCompile* cfg, MonoType *type) MONO_INTERNAL;
1418 guint32   mono_reverse_branch_op            (guint32 opcode) MONO_INTERNAL;
1419 void      mono_disassemble_code             (MonoCompile *cfg, guint8 *code, int size, char *id) MONO_INTERNAL;
1420 void      mono_add_patch_info               (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target) MONO_INTERNAL;
1421 void      mono_remove_patch_info            (MonoCompile *cfg, int ip) MONO_INTERNAL;
1422 MonoJumpInfo* mono_patch_info_dup_mp        (MonoMemPool *mp, MonoJumpInfo *patch_info) MONO_INTERNAL;
1423 guint     mono_patch_info_hash (gconstpointer data) MONO_INTERNAL;
1424 gint      mono_patch_info_equal (gconstpointer ka, gconstpointer kb) MONO_INTERNAL;
1425 MonoJumpInfo *mono_patch_info_list_prepend  (MonoJumpInfo *list, int ip, MonoJumpInfoType type, gconstpointer target) MONO_INTERNAL;
1426 gpointer  mono_resolve_patch_target         (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors) MONO_INTERNAL;
1427 gpointer  mono_jit_find_compiled_method_with_jit_info (MonoDomain *domain, MonoMethod *method, MonoJitInfo **ji) MONO_INTERNAL;
1428 gpointer  mono_jit_find_compiled_method     (MonoDomain *domain, MonoMethod *method) MONO_INTERNAL;
1429 gpointer  mono_jit_compile_method           (MonoMethod *method) MONO_INTERNAL;
1430 MonoLMF * mono_get_lmf                      (void) MONO_INTERNAL;
1431 MonoLMF** mono_get_lmf_addr                 (void) MONO_INTERNAL;
1432 void      mono_set_lmf                      (MonoLMF *lmf) MONO_INTERNAL;
1433 void      mono_jit_thread_attach            (MonoDomain *domain);
1434 guint32   mono_get_jit_tls_key              (void) MONO_INTERNAL;
1435 gint32    mono_get_jit_tls_offset           (void) MONO_INTERNAL;
1436 gint32    mono_get_lmf_tls_offset           (void) MONO_INTERNAL;
1437 gint32    mono_get_lmf_addr_tls_offset      (void) MONO_INTERNAL;
1438 MonoInst* mono_get_jit_tls_intrinsic        (MonoCompile *cfg) MONO_INTERNAL;
1439 MonoInst* mono_get_domain_intrinsic         (MonoCompile* cfg) MONO_INTERNAL;
1440 MonoInst* mono_get_thread_intrinsic         (MonoCompile* cfg) MONO_INTERNAL;
1441 GList    *mono_varlist_insert_sorted        (MonoCompile *cfg, GList *list, MonoMethodVar *mv, gboolean sort_end) MONO_INTERNAL;
1442 GList    *mono_varlist_sort                 (MonoCompile *cfg, GList *list, int sort_type) MONO_INTERNAL;
1443 void      mono_analyze_liveness             (MonoCompile *cfg) MONO_INTERNAL;
1444 void      mono_linear_scan                  (MonoCompile *cfg, GList *vars, GList *regs, regmask_t *used_mask) MONO_INTERNAL;
1445 void      mono_global_regalloc              (MonoCompile *cfg) MONO_INTERNAL;
1446 void      mono_create_jump_table            (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks) MONO_INTERNAL;
1447 int       mono_compile_assembly             (MonoAssembly *ass, guint32 opts, const char *aot_options) MONO_INTERNAL;
1448 MonoCompile *mini_method_compile            (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts) MONO_INTERNAL;
1449 void      mono_destroy_compile              (MonoCompile *cfg) MONO_INTERNAL;
1450 MonoJitICallInfo *mono_find_jit_opcode_emulation (int opcode) MONO_INTERNAL;
1451 void      mono_print_ins_index (int i, MonoInst *ins) MONO_INTERNAL;
1452 void      mono_print_ins (MonoInst *ins) MONO_INTERNAL;
1453 gboolean  mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method) MONO_INTERNAL;
1454 gboolean  mini_method_verify (MonoCompile *cfg, MonoMethod *method) MONO_INTERNAL;
1455 MonoInst *mono_get_got_var (MonoCompile *cfg) MONO_INTERNAL;
1456
1457 gboolean  mini_class_is_system_array (MonoClass *klass) MONO_INTERNAL;
1458 MonoMethodSignature *mono_get_element_address_signature (int arity) MONO_INTERNAL;
1459 MonoJitICallInfo    *mono_get_element_address_icall (int rank) MONO_INTERNAL;
1460 MonoJitICallInfo    *mono_get_array_new_va_icall (int rank) MONO_INTERNAL;
1461
1462 void      mono_linterval_add_range          (MonoCompile *cfg, MonoLiveInterval *interval, int from, int to) MONO_INTERNAL;
1463 void      mono_linterval_print              (MonoLiveInterval *interval) MONO_INTERNAL;
1464 void      mono_linterval_print_nl (MonoLiveInterval *interval) MONO_INTERNAL;
1465 gboolean  mono_linterval_covers             (MonoLiveInterval *interval, int pos) MONO_INTERNAL;
1466 gint32    mono_linterval_get_intersect_pos  (MonoLiveInterval *i1, MonoLiveInterval *i2) MONO_INTERNAL;
1467 void      mono_linterval_split              (MonoCompile *cfg, MonoLiveInterval *interval, MonoLiveInterval **i1, MonoLiveInterval **i2, int pos) MONO_INTERNAL;
1468 void      mono_liveness_handle_exception_clauses (MonoCompile *cfg) MONO_INTERNAL;
1469
1470 /* AOT */
1471 void      mono_aot_init                     (void) MONO_INTERNAL;
1472 gpointer  mono_aot_get_method               (MonoDomain *domain,
1473                                                                                          MonoMethod *method) MONO_INTERNAL;
1474 gpointer  mono_aot_get_method_from_token    (MonoDomain *domain, MonoImage *image, guint32 token) MONO_INTERNAL;
1475 gboolean  mono_aot_is_got_entry             (guint8 *code, guint8 *addr) MONO_INTERNAL;
1476 guint8*   mono_aot_get_plt_entry            (guint8 *code) MONO_INTERNAL;
1477 guint32   mono_aot_get_plt_info_offset      (mgreg_t *regs, guint8 *code) MONO_INTERNAL;
1478 gboolean  mono_aot_get_cached_class_info    (MonoClass *klass, MonoCachedClassInfo *res) MONO_INTERNAL;
1479 gboolean  mono_aot_get_class_from_name      (MonoImage *image, const char *name_space, const char *name, MonoClass **klass) MONO_INTERNAL;
1480 MonoJitInfo* mono_aot_find_jit_info         (MonoDomain *domain, MonoImage *image, gpointer addr) MONO_INTERNAL;
1481 gpointer mono_aot_plt_resolve               (gpointer aot_module, guint32 plt_info_offset, guint8 *code) MONO_INTERNAL;
1482 gpointer mono_aot_get_method_from_vt_slot   (MonoDomain *domain, MonoVTable *vtable, int slot) MONO_INTERNAL;
1483 gpointer mono_aot_create_specific_trampoline   (MonoImage *image, gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len) MONO_INTERNAL;
1484 gpointer mono_aot_get_named_code            (const char *name) MONO_INTERNAL;
1485 gpointer mono_aot_get_unbox_trampoline      (MonoMethod *method) MONO_INTERNAL;
1486 gpointer mono_aot_get_lazy_fetch_trampoline (guint32 slot) MONO_INTERNAL;
1487 gpointer mono_aot_get_static_rgctx_trampoline (gpointer ctx, gpointer addr) MONO_INTERNAL;
1488 gpointer mono_aot_get_imt_thunk             (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp) MONO_INTERNAL;
1489 guint8*  mono_aot_get_unwind_info           (MonoJitInfo *ji, guint32 *unwind_info_len) MONO_INTERNAL;
1490 guint32  mono_aot_method_hash               (MonoMethod *method) MONO_INTERNAL;
1491 char*    mono_aot_wrapper_name              (MonoMethod *method) MONO_INTERNAL;
1492 MonoAotTrampInfo* mono_aot_tramp_info_create (const char *name, guint8 *code, guint32 code_len) MONO_INTERNAL;
1493 guint    mono_aot_str_hash                  (gconstpointer v1) MONO_INTERNAL;
1494 MonoMethod* mono_aot_get_array_helper_from_wrapper (MonoMethod *method) MONO_INTERNAL;
1495 void     mono_aot_set_make_unreadable       (gboolean unreadable) MONO_INTERNAL;
1496 gboolean mono_aot_is_pagefault              (void *ptr) MONO_INTERNAL;
1497 void     mono_aot_handle_pagefault          (void *ptr) MONO_INTERNAL;
1498
1499 /* This is an exported function */
1500 void     mono_aot_register_globals          (gpointer *globals);
1501 /* This too */
1502 void     mono_aot_register_module           (gpointer *aot_info);
1503
1504 void     mono_xdebug_init                   (char *xdebug_opts) MONO_INTERNAL;
1505 void     mono_save_xdebug_info              (MonoCompile *cfg) MONO_INTERNAL;
1506 void     mono_save_trampoline_xdebug_info   (const char *tramp_name, guint8 *code, guint32 code_size, GSList *unwind_info) MONO_INTERNAL;
1507 /* This is an exported function */
1508 void     mono_xdebug_flush                  (void) MONO_INTERNAL;
1509
1510 /* LLVM backend */
1511 void     mono_llvm_init                     (void) MONO_INTERNAL;
1512 void     mono_llvm_cleanup                  (void) MONO_INTERNAL;
1513 void     mono_llvm_emit_method              (MonoCompile *cfg) MONO_INTERNAL;
1514 void     mono_llvm_emit_call                (MonoCompile *cfg, MonoCallInst *call) MONO_INTERNAL;
1515
1516 gboolean  mono_method_blittable             (MonoMethod *method) MONO_INTERNAL;
1517 gboolean  mono_method_same_domain           (MonoJitInfo *caller, MonoJitInfo *callee) MONO_INTERNAL;
1518
1519 void      mono_register_opcode_emulation    (int opcode, const char* name, const char *sigstr, gpointer func, gboolean no_throw) MONO_INTERNAL;
1520 void      mono_draw_graph                   (MonoCompile *cfg, MonoGraphOptions draw_options) MONO_INTERNAL;
1521 void      mono_add_ins_to_end               (MonoBasicBlock *bb, MonoInst *inst) MONO_INTERNAL;
1522 gpointer  mono_create_ftnptr                (MonoDomain *domain, gpointer addr) MONO_INTERNAL;
1523
1524 void      mono_replace_ins                  (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, MonoInst **prev, MonoBasicBlock *first_bb, MonoBasicBlock *last_bb);
1525
1526 int               mono_find_method_opcode      (MonoMethod *method) MONO_INTERNAL;
1527 MonoJitICallInfo *mono_find_jit_icall_by_name  (const char *name) MONO_INTERNAL;
1528 MonoJitICallInfo *mono_find_jit_icall_by_addr  (gconstpointer addr) MONO_INTERNAL;
1529 MonoJitICallInfo *mono_register_jit_icall      (gconstpointer func, const char *name, MonoMethodSignature *sig, gboolean is_save) MONO_INTERNAL;
1530 gconstpointer     mono_icall_get_wrapper       (MonoJitICallInfo* callinfo) MONO_INTERNAL;
1531
1532 void              mono_trampolines_init (void) MONO_INTERNAL;
1533 void              mono_trampolines_cleanup (void) MONO_INTERNAL;
1534 guint8 *          mono_get_trampoline_code (MonoTrampolineType tramp_type) MONO_INTERNAL;
1535 gpointer          mono_create_specific_trampoline (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len) MONO_INTERNAL;
1536 gpointer          mono_create_jump_trampoline (MonoDomain *domain,
1537                                                                                            MonoMethod *method,
1538                                                                                            gboolean add_sync_wrapper) MONO_INTERNAL;
1539 gpointer          mono_create_class_init_trampoline (MonoVTable *vtable) MONO_INTERNAL;
1540 gpointer          mono_create_generic_class_init_trampoline (void) MONO_INTERNAL;
1541 gpointer          mono_create_jit_trampoline (MonoMethod *method) MONO_INTERNAL;
1542 gpointer          mono_create_jit_trampoline_from_token (MonoImage *image, guint32 token) MONO_INTERNAL;
1543 gpointer          mono_create_jit_trampoline_in_domain (MonoDomain *domain, MonoMethod *method) MONO_INTERNAL;
1544 gpointer          mono_create_delegate_trampoline (MonoClass *klass) MONO_INTERNAL;
1545 gpointer          mono_create_rgctx_lazy_fetch_trampoline (guint32 offset) MONO_INTERNAL;
1546 gpointer          mono_create_monitor_enter_trampoline (void) MONO_INTERNAL;
1547 gpointer          mono_create_monitor_exit_trampoline (void) MONO_INTERNAL;
1548 gpointer          mono_create_static_rgctx_trampoline (MonoMethod *m, gpointer addr) MONO_INTERNAL;
1549 gpointer          mono_create_llvm_vcall_trampoline (MonoMethod *method) MONO_INTERNAL;
1550 gpointer          mono_create_llvm_imt_trampoline (MonoDomain *domain, MonoMethod *m, int vt_offset) MONO_INTERNAL;
1551 MonoVTable*       mono_find_class_init_trampoline_by_addr (gconstpointer addr) MONO_INTERNAL;
1552 guint32           mono_find_rgctx_lazy_fetch_trampoline_by_addr (gconstpointer addr) MONO_INTERNAL;
1553 gpointer          mono_magic_trampoline (mgreg_t *regs, guint8 *code, gpointer arg, guint8* tramp) MONO_INTERNAL;
1554 gpointer          mono_generic_virtual_remoting_trampoline (mgreg_t *regs, guint8 *code, MonoMethod *m, guint8 *tramp) MONO_INTERNAL;
1555 gpointer          mono_delegate_trampoline (mgreg_t *regs, guint8 *code, gpointer *tramp_data, guint8* tramp) MONO_INTERNAL;
1556 gpointer          mono_aot_trampoline (mgreg_t *regs, guint8 *code, guint8 *token_info,
1557                                                                            guint8* tramp) MONO_INTERNAL;
1558 gpointer          mono_aot_plt_trampoline (mgreg_t *regs, guint8 *code, guint8 *token_info,
1559                                                                                    guint8* tramp) MONO_INTERNAL;
1560 void              mono_class_init_trampoline (mgreg_t *regs, guint8 *code, MonoVTable *vtable, guint8 *tramp) MONO_INTERNAL;
1561 void              mono_generic_class_init_trampoline (mgreg_t *regs, guint8 *code, MonoVTable *vtable, guint8 *tramp) MONO_INTERNAL;
1562 void              mono_monitor_enter_trampoline (mgreg_t *regs, guint8 *code, MonoObject *obj, guint8 *tramp) MONO_INTERNAL;
1563 void              mono_monitor_exit_trampoline (mgreg_t *regs, guint8 *code, MonoObject *obj, guint8 *tramp) MONO_INTERNAL;
1564 gconstpointer     mono_get_trampoline_func (MonoTrampolineType tramp_type);
1565 gpointer          mini_get_vtable_trampoline (void) MONO_INTERNAL;
1566 gpointer*         mono_get_vcall_slot_addr (guint8* code, mgreg_t *regs) MONO_INTERNAL;
1567
1568 gboolean          mono_running_on_valgrind (void) MONO_INTERNAL;
1569 void*             mono_global_codeman_reserve (int size) MONO_INTERNAL;
1570 const char       *mono_regname_full (int reg, int bank) MONO_INTERNAL;
1571 gint32*           mono_allocate_stack_slots_full (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align) MONO_INTERNAL;
1572 gint32*           mono_allocate_stack_slots (MonoCompile *cfg, guint32 *stack_size, guint32 *stack_align) MONO_INTERNAL;
1573 void              mono_local_regalloc (MonoCompile *cfg, MonoBasicBlock *bb) MONO_INTERNAL;
1574 MonoInst         *mono_branch_optimize_exception_target (MonoCompile *cfg, MonoBasicBlock *bb, const char * exname) MONO_INTERNAL;
1575 void              mono_remove_critical_edges (MonoCompile *cfg) MONO_INTERNAL;
1576 gboolean          mono_is_regsize_var (MonoType *t) MONO_INTERNAL;
1577 void              mini_emit_memcpy (MonoCompile *cfg, int destreg, int doffset, int srcreg, int soffset, int size, int align) MONO_INTERNAL;
1578 CompRelation      mono_opcode_to_cond (int opcode) MONO_INTERNAL;
1579 CompType          mono_opcode_to_type (int opcode, int cmp_opcode) MONO_INTERNAL;
1580 CompRelation      mono_negate_cond (CompRelation cond) MONO_INTERNAL;
1581 int               mono_op_imm_to_op (int opcode) MONO_INTERNAL;
1582 void              mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins) MONO_INTERNAL;
1583 void              mono_peephole_ins (MonoBasicBlock *bb, MonoInst *ins) MONO_INTERNAL;
1584 MonoUnwindOp     *mono_create_unwind_op (int when,
1585                                                                                  int tag, int reg,
1586                                                                                  int val) MONO_INTERNAL;
1587 void              mono_emit_unwind_op (MonoCompile *cfg, int when,
1588                                                                            int tag, int reg,
1589                                                                            int val) MONO_INTERNAL;
1590
1591 int               mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_bblock, MonoBasicBlock *end_bblock,
1592                                                                          MonoInst *return_var, GList *dont_inline, MonoInst **inline_args,
1593                                                                          guint inline_offset, gboolean is_virtual_call) MONO_INTERNAL;
1594
1595 MonoInst         *mono_decompose_opcode (MonoCompile *cfg, MonoInst *ins) MONO_INTERNAL;
1596 void              mono_decompose_long_opts (MonoCompile *cfg) MONO_INTERNAL;
1597 void              mono_decompose_vtype_opts (MonoCompile *cfg) MONO_INTERNAL;
1598 void              mono_decompose_array_access_opts (MonoCompile *cfg) MONO_INTERNAL;
1599 void              mono_decompose_soft_float (MonoCompile *cfg) MONO_INTERNAL;
1600 void              mono_handle_global_vregs (MonoCompile *cfg) MONO_INTERNAL;
1601 void              mono_spill_global_vars (MonoCompile *cfg, gboolean *need_local_opts) MONO_INTERNAL;
1602 void              mono_if_conversion (MonoCompile *cfg) MONO_INTERNAL;
1603
1604 /* methods that must be provided by the arch-specific port */
1605 void      mono_arch_init                        (void) MONO_INTERNAL;
1606 void      mono_arch_cleanup                     (void) MONO_INTERNAL;
1607 void      mono_arch_cpu_init                    (void) MONO_INTERNAL;
1608 guint32   mono_arch_cpu_optimizazions           (guint32 *exclude_mask) MONO_INTERNAL;
1609 void      mono_arch_instrument_mem_needs        (MonoMethod *method, int *stack, int *code) MONO_INTERNAL;
1610 void     *mono_arch_instrument_prolog           (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments) MONO_INTERNAL;
1611 void     *mono_arch_instrument_epilog           (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments) MONO_INTERNAL;
1612 void     *mono_arch_instrument_epilog_full     (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments, gboolean preserve_argument_registers) MONO_INTERNAL;
1613 void      mono_codegen                          (MonoCompile *cfg) MONO_INTERNAL;
1614 void      mono_call_inst_add_outarg_reg         (MonoCompile *cfg, MonoCallInst *call, int vreg, int hreg, gboolean fp) MONO_INTERNAL;
1615 const char *mono_arch_regname                   (int reg) MONO_INTERNAL;
1616 const char *mono_arch_fregname                  (int reg) MONO_INTERNAL;
1617 gpointer  mono_arch_get_throw_exception         (void) MONO_INTERNAL;
1618 gpointer  mono_arch_get_rethrow_exception       (void) MONO_INTERNAL;
1619 gpointer  mono_arch_get_throw_exception_by_name (void) MONO_INTERNAL;
1620 gpointer  mono_arch_get_throw_corlib_exception  (void) MONO_INTERNAL;
1621 void      mono_arch_exceptions_init             (void) MONO_INTERNAL;
1622 guchar*   mono_arch_create_trampoline_code      (MonoTrampolineType tramp_type) MONO_INTERNAL;
1623 guchar*   mono_arch_create_trampoline_code_full (MonoTrampolineType tramp_type, guint32 *code_size, MonoJumpInfo **ji, GSList **out_unwind_ops, gboolean aot) MONO_INTERNAL;
1624 gpointer  mono_arch_create_rgctx_lazy_fetch_trampoline (guint32 slot) MONO_INTERNAL;
1625 gpointer  mono_arch_create_rgctx_lazy_fetch_trampoline_full (guint32 slot, guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1626 gpointer  mono_arch_create_generic_class_init_trampoline (void) MONO_INTERNAL;
1627 gpointer  mono_arch_get_nullified_class_init_trampoline (guint32 *code_len) MONO_INTERNAL;
1628 gpointer  mono_arch_create_monitor_enter_trampoline (void) MONO_INTERNAL;
1629 gpointer  mono_arch_create_monitor_exit_trampoline (void) MONO_INTERNAL;
1630 gpointer  mono_arch_create_monitor_enter_trampoline_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1631 gpointer  mono_arch_create_monitor_exit_trampoline_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1632 gpointer  mono_arch_create_generic_class_init_trampoline_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1633 GList    *mono_arch_get_allocatable_int_vars    (MonoCompile *cfg) MONO_INTERNAL;
1634 GList    *mono_arch_get_global_int_regs         (MonoCompile *cfg) MONO_INTERNAL;
1635 GList    *mono_arch_get_global_fp_regs          (MonoCompile *cfg) MONO_INTERNAL;
1636 GList    *mono_arch_get_iregs_clobbered_by_call (MonoCallInst *call) MONO_INTERNAL;
1637 GList    *mono_arch_get_fregs_clobbered_by_call (MonoCallInst *call) MONO_INTERNAL;
1638 guint32   mono_arch_regalloc_cost               (MonoCompile *cfg, MonoMethodVar *vmv) MONO_INTERNAL;
1639 void      mono_arch_patch_code                  (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *ji, gboolean run_cctors) MONO_INTERNAL;
1640 void      mono_arch_flush_icache                (guint8 *code, gint size) MONO_INTERNAL;
1641 int       mono_arch_max_epilog_size             (MonoCompile *cfg) MONO_INTERNAL;
1642 guint8   *mono_arch_emit_prolog                 (MonoCompile *cfg) MONO_INTERNAL;
1643 void      mono_arch_emit_epilog                 (MonoCompile *cfg) MONO_INTERNAL;
1644 void      mono_arch_emit_exceptions             (MonoCompile *cfg) MONO_INTERNAL;
1645 void      mono_arch_lowering_pass               (MonoCompile *cfg, MonoBasicBlock *bb) MONO_INTERNAL;
1646 void      mono_arch_peephole_pass_1             (MonoCompile *cfg, MonoBasicBlock *bb) MONO_INTERNAL;
1647 void      mono_arch_peephole_pass_2             (MonoCompile *cfg, MonoBasicBlock *bb) MONO_INTERNAL;
1648 void      mono_arch_output_basic_block          (MonoCompile *cfg, MonoBasicBlock *bb) MONO_INTERNAL;
1649 gboolean  mono_arch_has_unwind_info             (gconstpointer addr) MONO_INTERNAL;
1650 void      mono_arch_setup_jit_tls_data          (MonoJitTlsData *tls) MONO_INTERNAL;
1651 void      mono_arch_free_jit_tls_data           (MonoJitTlsData *tls) MONO_INTERNAL;
1652 void      mono_arch_fill_argument_info          (MonoCompile *cfg) MONO_INTERNAL;
1653 void      mono_arch_allocate_vars               (MonoCompile *m) MONO_INTERNAL;
1654 int       mono_arch_get_argument_info           (MonoMethodSignature *csig, int param_count, MonoJitArgumentInfo *arg_info) MONO_INTERNAL;
1655 gboolean  mono_arch_print_tree                  (MonoInst *tree, int arity) MONO_INTERNAL;
1656 void      mono_arch_emit_call                   (MonoCompile *cfg, MonoCallInst *call) MONO_INTERNAL;
1657 void      mono_arch_emit_outarg_vt              (MonoCompile *cfg, MonoInst *ins, MonoInst *src) MONO_INTERNAL;
1658 void      mono_arch_emit_setret                 (MonoCompile *cfg, MonoMethod *method, MonoInst *val) MONO_INTERNAL;
1659 MonoDynCallInfo *mono_arch_dyn_call_prepare     (MonoMethodSignature *sig) MONO_INTERNAL;
1660 void      mono_arch_dyn_call_free               (MonoDynCallInfo *info) MONO_INTERNAL;
1661 void      mono_arch_start_dyn_call              (MonoDynCallInfo *info, gpointer **args, guint8 *ret, guint8 *buf, int buf_len) MONO_INTERNAL;
1662 void      mono_arch_finish_dyn_call             (MonoDynCallInfo *info, guint8 *buf) MONO_INTERNAL;
1663 MonoInst *mono_arch_emit_inst_for_method        (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args) MONO_INTERNAL;
1664 void      mono_arch_decompose_opts              (MonoCompile *cfg, MonoInst *ins) MONO_INTERNAL;
1665 void      mono_arch_decompose_long_opts         (MonoCompile *cfg, MonoInst *ins) MONO_INTERNAL;
1666 GSList*   mono_arch_get_delegate_invoke_impls   (void) MONO_INTERNAL;
1667 LLVMCallInfo* mono_arch_get_llvm_call_info      (MonoCompile *cfg, MonoMethodSignature *sig) MONO_INTERNAL;
1668 guint8*   mono_arch_emit_load_got_addr          (guint8 *start, guint8 *code, MonoCompile *cfg, MonoJumpInfo **ji) MONO_INTERNAL;
1669 guint8*   mono_arch_emit_load_aotconst (guint8 *start, guint8 *code, MonoJumpInfo **ji, int tramp_type, gconstpointer target) MONO_INTERNAL;
1670
1671 /* Soft Debug support */
1672 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
1673 void      mono_arch_set_breakpoint              (MonoJitInfo *ji, guint8 *ip) MONO_INTERNAL;
1674 void      mono_arch_clear_breakpoint            (MonoJitInfo *ji, guint8 *ip) MONO_INTERNAL;
1675 void      mono_arch_start_single_stepping       (void) MONO_INTERNAL;
1676 void      mono_arch_stop_single_stepping        (void) MONO_INTERNAL;
1677 gboolean  mono_arch_is_single_step_event        (void *info, void *sigctx) MONO_INTERNAL;
1678 gboolean  mono_arch_is_breakpoint_event         (void *info, void *sigctx) MONO_INTERNAL;
1679 guint8*   mono_arch_get_ip_for_single_step      (MonoJitInfo *ji, MonoContext *ctx) MONO_INTERNAL;
1680 guint8*   mono_arch_get_ip_for_breakpoint       (MonoJitInfo *ji, MonoContext *ctx) MONO_INTERNAL;
1681 void     mono_arch_skip_breakpoint              (MonoContext *ctx) MONO_INTERNAL;
1682 void     mono_arch_skip_single_step             (MonoContext *ctx) MONO_INTERNAL;
1683 gpointer mono_arch_get_seq_point_info           (MonoDomain *domain, guint8 *code) MONO_INTERNAL;
1684 #endif
1685
1686 MonoJitInfo *mono_arch_find_jit_info            (MonoDomain *domain,
1687                                                  MonoJitTlsData *jit_tls,
1688                                                  MonoJitInfo *res,
1689                                                  MonoJitInfo *prev_ji,
1690                                                  MonoContext *ctx,
1691                                                  MonoContext *new_ctx,
1692                                                  MonoLMF **lmf,
1693                                                  gboolean *managed) MONO_INTERNAL;
1694 gboolean
1695 mono_arch_find_jit_info_ext (MonoDomain *domain, MonoJitTlsData *jit_tls,
1696                                                          MonoJitInfo *ji, MonoContext *ctx,
1697                                                          MonoContext *new_ctx, MonoLMF **lmf,
1698                                                          StackFrameInfo *frame_info) MONO_INTERNAL;
1699 gpointer mono_arch_get_call_filter              (void) MONO_INTERNAL;
1700 gpointer mono_arch_get_restore_context          (void) MONO_INTERNAL;
1701 gpointer mono_arch_get_call_filter_full         (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1702 gpointer mono_arch_get_restore_context_full     (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1703 gpointer  mono_arch_get_throw_exception_full    (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1704 gpointer  mono_arch_get_rethrow_exception_full  (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1705 gpointer  mono_arch_get_throw_exception_by_name_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1706 gpointer  mono_arch_get_throw_corlib_exception_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1707 gpointer  mono_arch_get_throw_pending_exception_full (guint32 *code_size, MonoJumpInfo **ji, gboolean aot) MONO_INTERNAL;
1708 gboolean mono_arch_handle_exception             (void *sigctx, gpointer obj, gboolean test_only) MONO_INTERNAL;
1709 void     mono_arch_handle_altstack_exception    (void *sigctx, gpointer fault_addr, gboolean stack_ovf) MONO_INTERNAL;
1710 gboolean mono_handle_soft_stack_ovf             (MonoJitTlsData *jit_tls, MonoJitInfo *ji, void *ctx, guint8* fault_addr) MONO_INTERNAL;
1711 gpointer mono_arch_ip_from_context              (void *sigctx) MONO_INTERNAL;
1712 void     mono_arch_sigctx_to_monoctx            (void *sigctx, MonoContext *ctx) MONO_INTERNAL;
1713 void     mono_arch_monoctx_to_sigctx            (MonoContext *mctx, void *ctx) MONO_INTERNAL;
1714 gpointer mono_arch_context_get_int_reg          (MonoContext *ctx, int reg) MONO_INTERNAL;
1715 void     mono_arch_flush_register_windows       (void) MONO_INTERNAL;
1716 gboolean mono_arch_is_inst_imm                  (gint64 imm) MONO_INTERNAL;
1717 MonoInst* mono_arch_get_domain_intrinsic        (MonoCompile* cfg) MONO_INTERNAL;
1718 MonoInst* mono_arch_get_thread_intrinsic        (MonoCompile* cfg) MONO_INTERNAL;
1719 gboolean mono_arch_is_int_overflow              (void *sigctx, void *info) MONO_INTERNAL;
1720 void     mono_arch_invalidate_method            (MonoJitInfo *ji, void *func, gpointer func_arg) MONO_INTERNAL;
1721 guint32  mono_arch_get_patch_offset             (guint8 *code) MONO_INTERNAL;
1722 gpointer mono_arch_get_vcall_slot               (guint8 *code, mgreg_t *regs, int *displacement) MONO_INTERNAL;
1723 gpointer*mono_arch_get_delegate_method_ptr_addr (guint8* code, mgreg_t *regs) MONO_INTERNAL;
1724 void     mono_arch_create_vars                  (MonoCompile *cfg) MONO_INTERNAL;
1725 void     mono_arch_save_unwind_info             (MonoCompile *cfg) MONO_INTERNAL;
1726 void     mono_arch_register_lowlevel_calls      (void) MONO_INTERNAL;
1727 gpointer mono_arch_get_unbox_trampoline         (MonoGenericSharingContext *gsctx, MonoMethod *m, gpointer addr) MONO_INTERNAL;
1728 gpointer mono_arch_get_static_rgctx_trampoline  (MonoMethod *m, MonoMethodRuntimeGenericContext *mrgctx, gpointer addr) MONO_INTERNAL;
1729 gpointer  mono_arch_get_llvm_imt_trampoline     (MonoDomain *domain, MonoMethod *method, int vt_offset) MONO_INTERNAL;
1730 void     mono_arch_patch_callsite               (guint8 *method_start, guint8 *code, guint8 *addr) MONO_INTERNAL;
1731 void     mono_arch_patch_plt_entry              (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr) MONO_INTERNAL;
1732 void     mono_arch_nullify_class_init_trampoline(guint8 *code, mgreg_t *regs) MONO_INTERNAL;
1733 void     mono_arch_nullify_plt_entry            (guint8 *code, mgreg_t *regs) MONO_INTERNAL;
1734 int      mono_arch_get_this_arg_reg             (MonoMethodSignature *sig, MonoGenericSharingContext *gsctx, guint8 *code) MONO_INTERNAL;
1735 gpointer mono_arch_get_this_arg_from_call       (MonoGenericSharingContext *gsctx, MonoMethodSignature *sig, mgreg_t *regs, guint8 *code) MONO_INTERNAL;
1736 MonoObject* mono_arch_find_this_argument        (mgreg_t *regs, MonoMethod *method, MonoGenericSharingContext *gsctx) MONO_INTERNAL;
1737 gpointer mono_arch_get_delegate_invoke_impl     (MonoMethodSignature *sig, gboolean has_target) MONO_INTERNAL;
1738 gpointer mono_arch_create_specific_trampoline   (gpointer arg1, MonoTrampolineType tramp_type, MonoDomain *domain, guint32 *code_len) MONO_INTERNAL;
1739 void        mono_arch_emit_imt_argument         (MonoCompile *cfg, MonoCallInst *call, MonoInst *imt_arg) MONO_INTERNAL;
1740 MonoMethod* mono_arch_find_imt_method           (mgreg_t *regs, guint8 *code) MONO_INTERNAL;
1741 MonoVTable* mono_arch_find_static_call_vtable   (mgreg_t *regs, guint8 *code) MONO_INTERNAL;
1742 gpointer    mono_arch_build_imt_thunk           (MonoVTable *vtable, MonoDomain *domain, MonoIMTCheckItem **imt_entries, int count, gpointer fail_tramp) MONO_INTERNAL;
1743 void    mono_arch_notify_pending_exc            (void) MONO_INTERNAL;
1744
1745 /* Exception handling */
1746
1747 /* Same as MonoStackWalk, but pass the context/frame type as well */
1748 typedef gboolean (*MonoJitStackWalk)            (StackFrameInfo *frame, MonoContext *ctx, gpointer data);
1749
1750 void     mono_exceptions_init                   (void) MONO_INTERNAL;
1751 gboolean mono_handle_exception                  (MonoContext *ctx, gpointer obj,
1752                                                  gpointer original_ip, gboolean test_only) MONO_INTERNAL;
1753 void     mono_handle_native_sigsegv             (int signal, void *sigctx) MONO_INTERNAL;
1754 void     mono_print_thread_dump                 (void *sigctx);
1755 void     mono_print_thread_dump_from_ctx        (MonoContext *ctx);
1756 void     mono_jit_walk_stack                    (MonoStackWalk func, gboolean do_il_offset, gpointer user_data) MONO_INTERNAL;
1757 void     mono_jit_walk_stack_from_ctx           (MonoStackWalk func, MonoContext *ctx, gboolean do_il_offset, gpointer user_data) MONO_INTERNAL;
1758 void     mono_jit_walk_stack_from_ctx_in_thread (MonoJitStackWalk func, MonoDomain *domain, MonoContext *start_ctx, gboolean do_il_offset, MonoThread *thread, MonoLMF *lmf, gpointer user_data) MONO_INTERNAL;
1759 void     mono_setup_altstack                    (MonoJitTlsData *tls) MONO_INTERNAL;
1760 void     mono_free_altstack                     (MonoJitTlsData *tls) MONO_INTERNAL;
1761 gpointer mono_altstack_restore_prot             (mgreg_t *regs, guint8 *code, gpointer *tramp_data, guint8* tramp) MONO_INTERNAL;
1762 MonoJitInfo* mini_jit_info_table_find           (MonoDomain *domain, char *addr, MonoDomain **out_domain) MONO_INTERNAL;
1763
1764 MonoJitInfo * mono_find_jit_info                (MonoDomain *domain, MonoJitTlsData *jit_tls, MonoJitInfo *res, MonoJitInfo *prev_ji, MonoContext *ctx, MonoContext *new_ctx, char **trace, MonoLMF **lmf, int *native_offset, gboolean *managed) MONO_INTERNAL;
1765
1766 gpointer mono_get_throw_exception               (void) MONO_INTERNAL;
1767 gpointer mono_get_rethrow_exception             (void) MONO_INTERNAL;
1768 gpointer mono_get_call_filter                   (void) MONO_INTERNAL;
1769 gpointer mono_get_restore_context               (void) MONO_INTERNAL;
1770 gpointer mono_get_throw_exception_by_name       (void) MONO_INTERNAL;
1771 gpointer mono_get_throw_corlib_exception        (void) MONO_INTERNAL;
1772
1773 /* the new function to do stack walks */
1774 typedef gboolean (*MonoStackFrameWalk)          (MonoDomain *domain, MonoContext *ctx, MonoJitInfo *ji, gpointer data);
1775 void      mono_walk_stack                       (MonoDomain *domain, MonoJitTlsData *jit_tls, MonoContext *start_ctx, MonoStackFrameWalk func, gpointer user_data);
1776
1777 MonoArray *ves_icall_get_trace                  (MonoException *exc, gint32 skip, MonoBoolean need_file_info) MONO_INTERNAL;
1778 MonoBoolean ves_icall_get_frame_info            (gint32 skip, MonoBoolean need_file_info,
1779                                                  MonoReflectionMethod **method,
1780                                                  gint32 *iloffset, gint32 *native_offset,
1781                                                  MonoString **file, gint32 *line, gint32 *column) MONO_INTERNAL;
1782 MonoString *ves_icall_System_Exception_get_trace (MonoException *exc) MONO_INTERNAL;
1783
1784 /* Dominator/SSA methods */
1785 void        mono_compile_dominator_info         (MonoCompile *cfg, int dom_flags) MONO_INTERNAL;
1786 void        mono_compute_natural_loops          (MonoCompile *cfg) MONO_INTERNAL;
1787 MonoBitSet* mono_compile_iterated_dfrontier     (MonoCompile *cfg, MonoBitSet *set) MONO_INTERNAL;
1788 void        mono_ssa_compute                    (MonoCompile *cfg) MONO_INTERNAL;
1789 void        mono_ssa_remove                     (MonoCompile *cfg) MONO_INTERNAL;
1790 void        mono_ssa_cprop                      (MonoCompile *cfg) MONO_INTERNAL;
1791 void        mono_ssa_deadce                     (MonoCompile *cfg) MONO_INTERNAL;
1792 void        mono_ssa_strength_reduction         (MonoCompile *cfg) MONO_INTERNAL;
1793 void        mono_free_loop_info                 (MonoCompile *cfg) MONO_INTERNAL;
1794
1795 void        mono_ssa_compute2                   (MonoCompile *cfg);
1796 void        mono_ssa_remove2                    (MonoCompile *cfg);
1797 void        mono_ssa_cprop2                     (MonoCompile *cfg);
1798 void        mono_ssa_deadce2                    (MonoCompile *cfg);
1799
1800 /* debugging support */
1801 void      mono_debug_init_method                (MonoCompile *cfg, MonoBasicBlock *start_block,
1802                                                  guint32 breakpoint_id) MONO_INTERNAL;
1803 void      mono_debug_open_method                (MonoCompile *cfg) MONO_INTERNAL;
1804 void      mono_debug_close_method               (MonoCompile *cfg) MONO_INTERNAL;
1805 void      mono_debug_open_block                 (MonoCompile *cfg, MonoBasicBlock *bb, guint32 address) MONO_INTERNAL;
1806 void      mono_debug_record_line_number         (MonoCompile *cfg, MonoInst *ins, guint32 address) MONO_INTERNAL;
1807 void      mono_debug_serialize_debug_info       (MonoCompile *cfg, guint8 **out_buf, guint32 *buf_len) MONO_INTERNAL;
1808 void      mono_debug_add_aot_method             (MonoDomain *domain,
1809                                                  MonoMethod *method, guint8 *code_start,
1810                                                  guint8 *debug_info, guint32 debug_info_len) MONO_INTERNAL;
1811 void      mono_debug_add_icall_wrapper          (MonoMethod *method, MonoJitICallInfo* info) MONO_INTERNAL;
1812 void      mono_debug_print_vars                 (gpointer ip, gboolean only_arguments);
1813 void      mono_debugger_run_finally             (MonoContext *start_ctx);
1814
1815 extern gssize mono_breakpoint_info_index [MONO_BREAKPOINT_ARRAY_SIZE];
1816
1817 gboolean mono_breakpoint_clean_code (guint8 *method_start, guint8 *code, int offset, guint8 *buf, int size);
1818
1819 #ifdef MONO_DEBUGGER_SUPPORTED
1820
1821 /* Mono Debugger support */
1822 void      mini_debugger_init                    (void);
1823 int       mini_debugger_main                    (MonoDomain *domain, MonoAssembly *assembly, int argc, char **argv);
1824 gboolean  mini_debug_running_inside_mdb         (void);
1825 void      mini_debugger_set_attach_ok           (void);
1826
1827 #endif
1828
1829 /* Tracing */
1830 MonoTraceSpec *mono_trace_parse_options         (const char *options) MONO_INTERNAL;
1831 void           mono_trace_set_assembly          (MonoAssembly *assembly) MONO_INTERNAL;
1832 gboolean       mono_trace_eval                  (MonoMethod *method) MONO_INTERNAL;
1833
1834 extern void
1835 mono_perform_abc_removal (MonoCompile *cfg) MONO_INTERNAL;
1836 extern void
1837 mono_perform_abc_removal (MonoCompile *cfg) MONO_INTERNAL;
1838 extern void
1839 mono_perform_ssapre (MonoCompile *cfg) MONO_INTERNAL;
1840 extern void
1841 mono_local_cprop (MonoCompile *cfg) MONO_INTERNAL;
1842 extern void
1843 mono_local_cprop (MonoCompile *cfg);
1844 extern void
1845 mono_local_deadce (MonoCompile *cfg);
1846
1847 /* CAS - stack walk */
1848 MonoSecurityFrame* ves_icall_System_Security_SecurityFrame_GetSecurityFrame (gint32 skip) MONO_INTERNAL;
1849 MonoArray* ves_icall_System_Security_SecurityFrame_GetSecurityStack (gint32 skip) MONO_INTERNAL;
1850
1851 /* Generic sharing */
1852
1853 MonoGenericSharingContext* mono_get_generic_context_from_code (guint8 *code) MONO_INTERNAL;
1854
1855 MonoGenericContext* mini_method_get_context (MonoMethod *method) MONO_INTERNAL;
1856
1857 int mono_method_check_context_used (MonoMethod *method) MONO_INTERNAL;
1858
1859 gboolean mono_generic_context_equal_deep (MonoGenericContext *context1, MonoGenericContext *context2) MONO_INTERNAL;
1860
1861 gpointer mono_helper_get_rgctx_other_ptr (MonoClass *caller_class, MonoVTable *vtable,
1862                                           guint32 token, guint32 token_source, guint32 rgctx_type,
1863                                           gint32 rgctx_index) MONO_INTERNAL;
1864
1865 void mono_generic_sharing_init (void) MONO_INTERNAL;
1866
1867 MonoClass* mini_class_get_container_class (MonoClass *class) MONO_INTERNAL;
1868 MonoGenericContext* mini_class_get_context (MonoClass *class) MONO_INTERNAL;
1869
1870 MonoType* mini_get_basic_type_from_generic (MonoGenericSharingContext *gsctx, MonoType *type) MONO_INTERNAL;
1871 MonoType* mini_type_get_underlying_type (MonoGenericSharingContext *gsctx, MonoType *type) MONO_INTERNAL;
1872
1873 int mini_type_stack_size (MonoGenericSharingContext *gsctx, MonoType *t, int *align) MONO_INTERNAL;
1874 int mini_type_stack_size_full (MonoGenericSharingContext *gsctx, MonoType *t, guint32 *align, gboolean pinvoke) MONO_INTERNAL;
1875 void type_to_eval_stack_type (MonoCompile *cfg, MonoType *type, MonoInst *inst) MONO_INTERNAL;
1876 guint mono_type_to_regmove (MonoCompile *cfg, MonoType *type) MONO_INTERNAL;
1877
1878 /* wapihandles.c */
1879 int mini_wapi_hps (int argc, char **argv) MONO_INTERNAL;
1880
1881 int mini_wapi_semdel (int argc, char **argv) MONO_INTERNAL;
1882
1883 int mini_wapi_seminfo (int argc, char **argv) MONO_INTERNAL;
1884
1885 /* SIMD support */
1886
1887 /*
1888 This enum MUST be kept in sync with its managed mirror Mono.Simd.AccelMode.
1889 The AccelMode values are masks while the ones here are the bit indexes.
1890  */
1891 enum {
1892         SIMD_VERSION_SSE1       = 0,
1893         SIMD_VERSION_SSE2       = 1,
1894         SIMD_VERSION_SSE3       = 2,
1895         SIMD_VERSION_SSSE3      = 3,
1896         SIMD_VERSION_SSE41      = 4,
1897         SIMD_VERSION_SSE42      = 5,
1898         SIMD_VERSION_SSE4a      = 6,
1899 };
1900
1901 enum {
1902         SIMD_COMP_EQ,
1903         SIMD_COMP_LT,
1904         SIMD_COMP_LE,
1905         SIMD_COMP_UNORD,
1906         SIMD_COMP_NEQ,
1907         SIMD_COMP_NLT,
1908         SIMD_COMP_NLE,
1909         SIMD_COMP_ORD
1910 };
1911
1912 enum {
1913         SIMD_PREFETCH_MODE_NTA,
1914         SIMD_PREFETCH_MODE_0,
1915         SIMD_PREFETCH_MODE_1,
1916         SIMD_PREFETCH_MODE_2,
1917 };
1918
1919 const char *mono_arch_xregname (int reg) MONO_INTERNAL;
1920 void        mono_simd_simplify_indirection (MonoCompile *cfg) MONO_INTERNAL;
1921 MonoInst*   mono_emit_simd_intrinsics (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args) MONO_INTERNAL;
1922 guint32     mono_arch_cpu_enumerate_simd_versions (void) MONO_INTERNAL;
1923 void        mono_simd_intrinsics_init (void) MONO_INTERNAL;
1924
1925 /*
1926  * Per-OS implementation functions.
1927  */
1928 void mono_runtime_install_handlers (void) MONO_INTERNAL;
1929 void mono_runtime_cleanup_handlers (void) MONO_INTERNAL;
1930 void mono_runtime_setup_stat_profiler (void) MONO_INTERNAL;
1931 void mono_runtime_shutdown_stat_profiler (void) MONO_INTERNAL;
1932 void mono_runtime_posix_install_handlers (void) MONO_INTERNAL;
1933 pid_t mono_runtime_syscall_fork (void) MONO_INTERNAL;
1934 gboolean mono_gdb_render_native_backtraces (void) MONO_INTERNAL;
1935
1936 /*
1937  * Signal handling
1938  */
1939 #ifdef MONO_GET_CONTEXT
1940 #define GET_CONTEXT MONO_GET_CONTEXT
1941 #endif
1942
1943 #ifndef GET_CONTEXT
1944 #ifdef PLATFORM_WIN32
1945 #define GET_CONTEXT \
1946     void *ctx = context;
1947 #else
1948 #ifdef MONO_ARCH_USE_SIGACTION
1949 #define GET_CONTEXT \
1950     void *ctx = context;
1951 #elif defined(__sparc__)
1952 #define GET_CONTEXT \
1953     void *ctx = sigctx;
1954 #else
1955 #define GET_CONTEXT \
1956         void **_p = (void **)&_dummy; \
1957         struct sigcontext *ctx = (struct sigcontext *)++_p;
1958 #endif
1959 #endif
1960 #endif
1961
1962 #ifdef MONO_ARCH_USE_SIGACTION
1963 #define SIG_HANDLER_SIGNATURE(ftn) ftn (int _dummy, siginfo_t *info, void *context)
1964 #define SIG_HANDLER_PARAMS _dummy, info, context
1965 #elif defined(PLATFORM_WIN32)
1966 #define SIG_HANDLER_SIGNATURE(ftn) ftn (int _dummy, EXCEPTION_RECORD *info, void *context)
1967 #define SIG_HANDLER_PARAMS _dummy, info, context
1968 #elif defined(__sparc__)
1969 #define SIG_HANDLER_SIGNATURE(ftn) ftn (int _dummy, void *sigctx)
1970 #define SIG_HANDLER_PARAMS _dummy, sigctx
1971 #else
1972 #define SIG_HANDLER_SIGNATURE(ftn) ftn (int _dummy)
1973 #define SIG_HANDLER_PARAMS _dummy
1974 #endif
1975
1976 void SIG_HANDLER_SIGNATURE (mono_sigfpe_signal_handler)  MONO_INTERNAL;
1977 void SIG_HANDLER_SIGNATURE (mono_sigill_signal_handler)  MONO_INTERNAL;
1978 void SIG_HANDLER_SIGNATURE (mono_sigsegv_signal_handler) MONO_INTERNAL;
1979 void SIG_HANDLER_SIGNATURE (mono_sigint_signal_handler)  MONO_INTERNAL;
1980 gboolean SIG_HANDLER_SIGNATURE (mono_chain_signal) MONO_INTERNAL;
1981
1982 /* for MONO_WRAPPER_UNKNOWN/MANAGED_TO_MANAGED subtypes */
1983 enum {
1984         MONO_AOT_WRAPPER_MONO_ENTER,
1985         MONO_AOT_WRAPPER_MONO_EXIT,
1986         MONO_AOT_WRAPPER_ELEMENT_ADDR,
1987         MONO_AOT_WRAPPER_LAST
1988 };
1989
1990 #endif /* __MONO_MINI_H__ */