/
transform.c
4278 lines (4015 loc) · 120 KB
/
transform.c
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/**
* \file
* transform CIL into different opcodes for more
* efficient interpretation
*
* Written by Bernie Solomon (bernard@ugsolutions.com)
* Copyright (c) 2004.
*/
#include <string.h>
#include <mono/metadata/appdomain.h>
#include <mono/metadata/debug-helpers.h>
#include <mono/metadata/exception.h>
#include <mono/metadata/mono-endian.h>
#include <mono/metadata/marshal.h>
#include <mono/metadata/profiler-private.h>
#include <mono/metadata/tabledefs.h>
#include <mono/metadata/seq-points-data.h>
#include <mono/mini/mini.h>
#include "mintops.h"
#include "interp-internals.h"
#include "interp.h"
// TODO: export from marshal.c
MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
#define DEBUG 0
typedef struct
{
MonoClass *klass;
unsigned char type;
unsigned char flags;
} StackInfo;
typedef struct {
guint8 *ip;
GSList *preds;
GSList *seq_points;
SeqPoint *last_seq_point;
// This will hold a list of last sequence points of incoming basic blocks
SeqPoint **pred_seq_points;
guint num_pred_seq_points;
} InterpBasicBlock;
typedef enum {
RELOC_SHORT_BRANCH,
RELOC_LONG_BRANCH,
RELOC_SWITCH
} RelocType;
typedef struct {
RelocType type;
/* In the interpreter IR */
int offset;
/* In the IL code */
int target;
} Reloc;
typedef struct
{
MonoMethod *method;
MonoMethodHeader *header;
InterpMethod *rtm;
const unsigned char *il_code;
const unsigned char *ip;
const unsigned char *last_ip;
const unsigned char *in_start;
int code_size;
int *in_offsets;
StackInfo **stack_state;
int *stack_height;
int *vt_stack_size;
unsigned char *is_bb_start;
unsigned short *new_code;
unsigned short *new_code_end;
unsigned short *new_ip;
unsigned short *last_new_ip;
unsigned int max_code_size;
StackInfo *stack;
StackInfo *sp;
unsigned int max_stack_height;
unsigned int vt_sp;
unsigned int max_vt_sp;
int n_data_items;
int max_data_items;
void **data_items;
GHashTable *data_hash;
int *clause_indexes;
gboolean gen_sdb_seq_points;
GPtrArray *seq_points;
InterpBasicBlock **offset_to_bb;
InterpBasicBlock *entry_bb;
MonoMemPool *mempool;
GList *basic_blocks;
GPtrArray *relocs;
gboolean verbose_level;
} TransformData;
#define MINT_TYPE_I1 0
#define MINT_TYPE_U1 1
#define MINT_TYPE_I2 2
#define MINT_TYPE_U2 3
#define MINT_TYPE_I4 4
#define MINT_TYPE_I8 5
#define MINT_TYPE_R4 6
#define MINT_TYPE_R8 7
#define MINT_TYPE_O 8
#define MINT_TYPE_P 9
#define MINT_TYPE_VT 10
#define STACK_TYPE_I4 0
#define STACK_TYPE_I8 1
#define STACK_TYPE_R8 2
#define STACK_TYPE_O 3
#define STACK_TYPE_VT 4
#define STACK_TYPE_MP 5
#define STACK_TYPE_F 6
static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
#if SIZEOF_VOID_P == 8
#define STACK_TYPE_I STACK_TYPE_I8
#else
#define STACK_TYPE_I STACK_TYPE_I4
#endif
static int stack_type [] = {
STACK_TYPE_I4, /*I1*/
STACK_TYPE_I4, /*U1*/
STACK_TYPE_I4, /*I2*/
STACK_TYPE_I4, /*U2*/
STACK_TYPE_I4, /*I4*/
STACK_TYPE_I8, /*I8*/
STACK_TYPE_R8, /*R4*/
STACK_TYPE_R8, /*R8*/
STACK_TYPE_O, /*O*/
STACK_TYPE_MP, /*P*/
STACK_TYPE_VT
};
static void
grow_code (TransformData *td)
{
unsigned int old_ip_offset = td->new_ip - td->new_code;
unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
g_assert (old_ip_offset <= td->max_code_size);
td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
td->new_code_end = td->new_code + td->max_code_size;
td->new_ip = td->new_code + old_ip_offset;
td->last_new_ip = td->new_code + old_last_ip_offset;
}
#define ENSURE_CODE(td, n) \
do { \
if ((td)->new_ip + (n) > (td)->new_code_end) \
grow_code (td); \
} while (0)
#define ADD_CODE(td, n) \
do { \
if ((td)->new_ip == (td)->new_code_end) \
grow_code (td); \
*(td)->new_ip++ = (n); \
} while (0)
#define CHECK_STACK(td, n) \
do { \
int stack_size = (td)->sp - (td)->stack; \
if (stack_size < (n)) \
g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
(td)->method->klass->name, (td)->method->name, \
stack_size, n, (td)->ip - (td)->il_code); \
} while (0)
#define ENSURE_I4(td, sp_off) \
do { \
if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
} while (0)
static void
handle_branch (TransformData *td, int short_op, int long_op, int offset)
{
int shorten_branch = 0;
int target = td->ip + offset - td->il_code;
if (target < 0 || target >= td->code_size)
g_assert_not_reached ();
if (offset > 0 && td->stack_height [target] < 0) {
td->stack_height [target] = td->sp - td->stack;
if (td->stack_height [target] > 0)
td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
td->vt_stack_size [target] = td->vt_sp;
}
if (offset < 0) {
offset = td->in_offsets [target] - (td->new_ip - td->new_code);
if (offset >= -32768) {
shorten_branch = 1;
}
} else {
if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
shorten_branch = 1;
Reloc *reloc = mono_mempool_alloc0 (td->mempool, sizeof (Reloc));
if (shorten_branch) {
offset = 0xffff;
reloc->type = RELOC_SHORT_BRANCH;
} else {
offset = 0xdeadbeef;
reloc->type = RELOC_LONG_BRANCH;
}
reloc->offset = td->new_ip - td->new_code;
reloc->target = target;
g_ptr_array_add (td->relocs, reloc);
}
if (shorten_branch) {
ADD_CODE(td, short_op);
ADD_CODE(td, offset);
} else {
ADD_CODE(td, long_op);
ADD_CODE(td, * (unsigned short *)(&offset));
ADD_CODE(td, * ((unsigned short *)&offset + 1));
}
}
static void
one_arg_branch(TransformData *td, int mint_op, int offset)
{
int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
int long_op = mint_op + type - STACK_TYPE_I4;
int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
CHECK_STACK(td, 1);
--td->sp;
handle_branch (td, short_op, long_op, offset);
}
static void
two_arg_branch(TransformData *td, int mint_op, int offset)
{
int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
int long_op = mint_op + type1 - STACK_TYPE_I4;
int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
CHECK_STACK(td, 2);
if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
ADD_CODE(td, MINT_CONV_I8_I4);
td->in_offsets [td->ip - td->il_code]++;
} else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
ADD_CODE(td, MINT_CONV_I8_I4_SP);
td->in_offsets [td->ip - td->il_code]++;
} else if (type1 != type2) {
g_warning("%s.%s: branch type mismatch %d %d",
td->method->klass->name, td->method->name,
td->sp [-1].type, td->sp [-2].type);
}
td->sp -= 2;
handle_branch (td, short_op, long_op, offset);
}
static void
unary_arith_op(TransformData *td, int mint_op)
{
int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
CHECK_STACK(td, 1);
ADD_CODE(td, op);
}
static void
binary_arith_op(TransformData *td, int mint_op)
{
int type1 = td->sp [-2].type;
int type2 = td->sp [-1].type;
int op;
#if SIZEOF_VOID_P == 8
if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
ADD_CODE(td, MINT_CONV_I8_I4);
type2 = STACK_TYPE_I8;
}
if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
ADD_CODE(td, MINT_CONV_I8_I4_SP);
type1 = STACK_TYPE_I8;
td->sp [-2].type = STACK_TYPE_I8;
}
#endif
if (type1 == STACK_TYPE_MP)
type1 = STACK_TYPE_I;
if (type2 == STACK_TYPE_MP)
type2 = STACK_TYPE_I;
if (type1 != type2) {
g_warning("%s.%s: %04x arith type mismatch %s %d %d",
td->method->klass->name, td->method->name,
td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
}
op = mint_op + type1 - STACK_TYPE_I4;
CHECK_STACK(td, 2);
ADD_CODE(td, op);
--td->sp;
}
static void
shift_op(TransformData *td, int mint_op)
{
int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
CHECK_STACK(td, 2);
if (td->sp [-1].type != STACK_TYPE_I4) {
g_warning("%s.%s: shift type mismatch %d",
td->method->klass->name, td->method->name,
td->sp [-2].type);
}
ADD_CODE(td, op);
--td->sp;
}
static int
mint_type(MonoType *type)
{
if (type->byref)
return MINT_TYPE_P;
enum_type:
switch (type->type) {
case MONO_TYPE_I1:
return MINT_TYPE_I1;
case MONO_TYPE_U1:
case MONO_TYPE_BOOLEAN:
return MINT_TYPE_U1;
case MONO_TYPE_I2:
return MINT_TYPE_I2;
case MONO_TYPE_U2:
case MONO_TYPE_CHAR:
return MINT_TYPE_U2;
case MONO_TYPE_I4:
case MONO_TYPE_U4:
return MINT_TYPE_I4;
case MONO_TYPE_I:
case MONO_TYPE_U:
#if SIZEOF_VOID_P == 4
return MINT_TYPE_I4;
#else
return MINT_TYPE_I8;
#endif
case MONO_TYPE_PTR:
return MINT_TYPE_P;
case MONO_TYPE_R4:
return MINT_TYPE_R4;
case MONO_TYPE_I8:
case MONO_TYPE_U8:
return MINT_TYPE_I8;
case MONO_TYPE_R8:
return MINT_TYPE_R8;
case MONO_TYPE_STRING:
case MONO_TYPE_SZARRAY:
case MONO_TYPE_CLASS:
case MONO_TYPE_OBJECT:
case MONO_TYPE_ARRAY:
return MINT_TYPE_O;
case MONO_TYPE_VALUETYPE:
if (type->data.klass->enumtype) {
type = mono_class_enum_basetype (type->data.klass);
goto enum_type;
} else
return MINT_TYPE_VT;
case MONO_TYPE_TYPEDBYREF:
return MINT_TYPE_VT;
case MONO_TYPE_GENERICINST:
type = &type->data.generic_class->container_class->byval_arg;
goto enum_type;
default:
g_warning ("got type 0x%02x", type->type);
g_assert_not_reached ();
}
return -1;
}
static int
can_store (int stack_type, int var_type)
{
if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
stack_type = STACK_TYPE_I;
if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
var_type = STACK_TYPE_I;
return stack_type == var_type;
}
#define SET_SIMPLE_TYPE(s, ty) \
do { \
(s)->type = (ty); \
(s)->flags = 0; \
(s)->klass = NULL; \
} while (0)
#define SET_TYPE(s, ty, k) \
do { \
(s)->type = (ty); \
(s)->flags = 0; \
(s)->klass = k; \
} while (0)
#define PUSH_SIMPLE_TYPE(td, ty) \
do { \
int sp_height; \
(td)->sp++; \
sp_height = (td)->sp - (td)->stack; \
if (sp_height > (td)->max_stack_height) \
(td)->max_stack_height = sp_height; \
SET_SIMPLE_TYPE((td)->sp - 1, ty); \
} while (0)
#define PUSH_TYPE(td, ty, k) \
do { \
int sp_height; \
(td)->sp++; \
sp_height = (td)->sp - (td)->stack; \
if (sp_height > (td)->max_stack_height) \
(td)->max_stack_height = sp_height; \
SET_TYPE((td)->sp - 1, ty, k); \
} while (0)
#define PUSH_VT(td, size) \
do { \
(td)->vt_sp += ((size) + 7) & ~7; \
if ((td)->vt_sp > (td)->max_vt_sp) \
(td)->max_vt_sp = (td)->vt_sp; \
} while (0)
#define POP_VT(td, size) \
do { \
(td)->vt_sp -= ((size) + 7) & ~7; \
} while (0)
#if NO_UNALIGNED_ACCESS
#define WRITE32(td, v) \
do { \
ENSURE_CODE(td, 2); \
* (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
* ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
(td)->new_ip += 2; \
} while (0)
#define WRITE64(td, v) \
do { \
ENSURE_CODE(td, 4); \
* (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
* ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
* ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
* ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
(td)->new_ip += 4; \
} while (0)
#else
#define WRITE32(td, v) \
do { \
ENSURE_CODE(td, 2); \
* (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
(td)->new_ip += 2; \
} while (0)
#define WRITE64(td, v) \
do { \
ENSURE_CODE(td, 4); \
* (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
(td)->new_ip += 4; \
} while (0)
#endif
static void
load_arg(TransformData *td, int n)
{
int mt;
MonoClass *klass = NULL;
MonoType *type;
gboolean hasthis = mono_method_signature (td->method)->hasthis;
if (hasthis && n == 0)
type = &td->method->klass->byval_arg;
else
type = mono_method_signature (td->method)->params [hasthis ? n - 1 : n];
mt = mint_type (type);
if (mt == MINT_TYPE_VT) {
gint32 size;
klass = mono_class_from_mono_type (type);
if (mono_method_signature (td->method)->pinvoke)
size = mono_class_native_size (klass, NULL);
else
size = mono_class_value_size (klass, NULL);
if (hasthis && n == 0) {
mt = MINT_TYPE_P;
ADD_CODE (td, MINT_LDARG_P);
ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
klass = NULL;
} else {
PUSH_VT (td, size);
ADD_CODE (td, MINT_LDARG_VT);
ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
WRITE32 (td, &size);
}
} else {
if (hasthis && n == 0) {
mt = MINT_TYPE_P;
ADD_CODE (td, MINT_LDARG_P);
ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
klass = NULL;
} else {
ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
if (mt == MINT_TYPE_O)
klass = mono_class_from_mono_type (type);
}
}
PUSH_TYPE(td, stack_type[mt], klass);
}
static void
store_arg(TransformData *td, int n)
{
int mt;
CHECK_STACK (td, 1);
MonoType *type;
gboolean hasthis = mono_method_signature (td->method)->hasthis;
if (hasthis && n == 0)
type = &td->method->klass->byval_arg;
else
type = mono_method_signature (td->method)->params [n - !!hasthis];
mt = mint_type (type);
if (mt == MINT_TYPE_VT) {
gint32 size;
MonoClass *klass = mono_class_from_mono_type (type);
if (mono_method_signature (td->method)->pinvoke)
size = mono_class_native_size (klass, NULL);
else
size = mono_class_value_size (klass, NULL);
ADD_CODE(td, MINT_STARG_VT);
ADD_CODE(td, td->rtm->arg_offsets [n]);
WRITE32(td, &size);
if (td->sp [-1].type == STACK_TYPE_VT)
POP_VT(td, size);
} else {
ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
ADD_CODE(td, td->rtm->arg_offsets [n]);
}
--td->sp;
}
static void
store_inarg(TransformData *td, int n)
{
MonoType *type;
gboolean hasthis = mono_method_signature (td->method)->hasthis;
if (hasthis && n == 0)
type = &td->method->klass->byval_arg;
else
type = mono_method_signature (td->method)->params [n - !!hasthis];
int mt = mint_type (type);
if (hasthis && n == 0) {
ADD_CODE (td, MINT_STINARG_P);
ADD_CODE (td, n);
return;
}
if (mt == MINT_TYPE_VT) {
MonoClass *klass = mono_class_from_mono_type (type);
gint32 size;
if (mono_method_signature (td->method)->pinvoke)
size = mono_class_native_size (klass, NULL);
else
size = mono_class_value_size (klass, NULL);
ADD_CODE(td, MINT_STINARG_VT);
ADD_CODE(td, n);
WRITE32(td, &size);
} else {
ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
ADD_CODE(td, n);
}
}
static void
load_local(TransformData *td, int n)
{
MonoType *type = td->header->locals [n];
int mt = mint_type (type);
int offset = td->rtm->local_offsets [n];
MonoClass *klass = NULL;
if (mt == MINT_TYPE_VT) {
klass = mono_class_from_mono_type (type);
gint32 size = mono_class_value_size (klass, NULL);
PUSH_VT(td, size);
ADD_CODE(td, MINT_LDLOC_VT);
ADD_CODE(td, offset); /*FIX for large offset */
WRITE32(td, &size);
} else {
g_assert (mt < MINT_TYPE_VT);
if (!td->gen_sdb_seq_points &&
mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
td->last_new_ip [0] = MINT_STLOC_NP_I4;
} else if (!td->gen_sdb_seq_points &&
mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
td->last_new_ip [0] = MINT_STLOC_NP_O;
} else {
ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
ADD_CODE(td, offset); /*FIX for large offset */
}
if (mt == MINT_TYPE_O)
klass = mono_class_from_mono_type (type);
}
PUSH_TYPE(td, stack_type[mt], klass);
}
static void
store_local(TransformData *td, int n)
{
MonoType *type = td->header->locals [n];
int mt = mint_type (type);
int offset = td->rtm->local_offsets [n];
CHECK_STACK (td, 1);
#if SIZEOF_VOID_P == 8
if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
ADD_CODE(td, MINT_CONV_I8_I4);
td->sp [-1].type = STACK_TYPE_I8;
}
#endif
if (!can_store(td->sp [-1].type, stack_type [mt])) {
g_warning("%s.%s: Store local stack type mismatch %d %d",
td->method->klass->name, td->method->name,
stack_type [mt], td->sp [-1].type);
}
if (mt == MINT_TYPE_VT) {
MonoClass *klass = mono_class_from_mono_type (type);
gint32 size = mono_class_value_size (klass, NULL);
ADD_CODE(td, MINT_STLOC_VT);
ADD_CODE(td, offset); /*FIX for large offset */
WRITE32(td, &size);
if (td->sp [-1].type == STACK_TYPE_VT)
POP_VT(td, size);
} else {
g_assert (mt < MINT_TYPE_VT);
ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
ADD_CODE(td, offset); /*FIX for large offset */
}
--td->sp;
}
#define SIMPLE_OP(td, op) \
do { \
ADD_CODE(td, op); \
++td->ip; \
} while (0)
static guint16
get_data_item_index (TransformData *td, void *ptr)
{
gpointer p = g_hash_table_lookup (td->data_hash, ptr);
guint index;
if (p != NULL)
return GPOINTER_TO_UINT (p) - 1;
if (td->max_data_items == td->n_data_items) {
td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
}
index = td->n_data_items;
td->data_items [index] = ptr;
++td->n_data_items;
g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
return index;
}
static gboolean
jit_call_supported (MonoMethod *method, MonoMethodSignature *sig)
{
GSList *l;
if (sig->param_count > 6)
return FALSE;
if (sig->pinvoke)
return FALSE;
if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
return FALSE;
if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
return FALSE;
if (method->is_inflated)
return FALSE;
if (method->string_ctor)
return FALSE;
for (l = jit_classes; l; l = l->next) {
char *class_name = l->data;
// FIXME: Namespaces
if (!strcmp (method->klass->name, class_name))
return TRUE;
}
//return TRUE;
return FALSE;
}
static void
interp_transform_call (TransformData *td, MonoMethod *method, MonoMethod *target_method, MonoDomain *domain, MonoGenericContext *generic_context, unsigned char *is_bb_start, int body_start_offset, MonoClass *constrained_class, gboolean readonly)
{
MonoImage *image = method->klass->image;
MonoMethodSignature *csignature;
MonoError error;
int virtual = *td->ip == CEE_CALLVIRT;
int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
int i;
guint32 vt_stack_used = 0;
guint32 vt_res_size = 0;
int op = -1;
int native = 0;
int is_void = 0;
guint32 token = read32 (td->ip + 1);
if (target_method == NULL) {
if (calli) {
CHECK_STACK(td, 1);
native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
--td->sp;
if (method->wrapper_type != MONO_WRAPPER_NONE)
csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
else
csignature = mono_metadata_parse_signature (image, token);
if (generic_context) {
csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
mono_error_cleanup (&error); /* FIXME: don't swallow the error */
}
target_method = NULL;
} else {
if (method->wrapper_type == MONO_WRAPPER_NONE)
target_method = mono_get_method_full (image, token, NULL, generic_context);
else
target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
csignature = mono_method_signature (target_method);
if (generic_context) {
csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
mono_error_cleanup (&error); /* FIXME: don't swallow the error */
target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
mono_error_cleanup (&error); /* FIXME: don't swallow the error */
}
}
} else {
csignature = mono_method_signature (target_method);
}
if (target_method && target_method->string_ctor) {
/* Create the real signature */
MonoMethodSignature *ctor_sig = mono_metadata_signature_dup_mempool (td->mempool, csignature);
ctor_sig->ret = &mono_defaults.string_class->byval_arg;
csignature = ctor_sig;
}
/* Intrinsics */
if (target_method) {
if (target_method->klass == mono_defaults.string_class) {
if (target_method->name [0] == 'g') {
if (strcmp (target_method->name, "get_Chars") == 0)
op = MINT_GETCHR;
else if (strcmp (target_method->name, "get_Length") == 0)
op = MINT_STRLEN;
}
} else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
if (!strcmp (target_method->name, "get_Rank")) {
op = MINT_ARRAY_RANK;
} else if (!strcmp (target_method->name, "get_Length")) {
op = MINT_LDLEN;
} else if (!strcmp (target_method->name, "Address")) {
op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
}
} else if (target_method->klass->image == mono_defaults.corlib &&
(strcmp (target_method->klass->name_space, "System.Diagnostics") == 0) &&
(strcmp (target_method->klass->name, "Debugger") == 0)) {
if (!strcmp (target_method->name, "Break") && csignature->param_count == 0) {
if (mini_should_insert_breakpoint (method))
op = MINT_BREAK;
}
}
}
if (constrained_class) {
if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
/* Use the corresponding method from the base type to avoid boxing */
MonoType *base_type = mono_class_enum_basetype (constrained_class);
g_assert (base_type);
constrained_class = mono_class_from_mono_type (base_type);
target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
g_assert (target_method);
}
}
if (constrained_class) {
mono_class_setup_vtable (constrained_class);
#if DEBUG_INTERP
g_print ("CONSTRAINED.CALLVIRT: %s::%s. %s (%p) ->\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
#endif
target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
#if DEBUG_INTERP
g_print (" : %s::%s. %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
#endif
mono_error_cleanup (&error); /* FIXME: don't swallow the error */
mono_class_setup_vtable (target_method->klass);
if (constrained_class->valuetype && (target_method->klass == mono_defaults.object_class || target_method->klass == mono_defaults.enum_class->parent || target_method->klass == mono_defaults.enum_class)) {
if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
/* managed pointer on the stack, we need to deref that puppy */
ADD_CODE (td, MINT_LDIND_I);
ADD_CODE (td, csignature->param_count);
}
ADD_CODE (td, MINT_BOX);
ADD_CODE (td, get_data_item_index (td, constrained_class));
ADD_CODE (td, csignature->param_count);
} else if (!constrained_class->valuetype) {
/* managed pointer on the stack, we need to deref that puppy */
ADD_CODE (td, MINT_LDIND_I);
ADD_CODE (td, csignature->param_count);
} else {
if (target_method->klass->valuetype) {
/* Own method */
} else {
/* Interface method */
int ioffset, slot;
mono_class_setup_vtable (constrained_class);
ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
if (ioffset == -1)
g_error ("type load error: constrained_class");
slot = mono_method_get_vtable_slot (target_method);
if (slot == -1)
g_error ("type load error: target_method->klass");
target_method = constrained_class->vtable [ioffset + slot];
if (target_method->klass == mono_defaults.enum_class) {
if ((td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
/* managed pointer on the stack, we need to deref that puppy */
ADD_CODE (td, MINT_LDIND_I);
ADD_CODE (td, csignature->param_count);
}
ADD_CODE (td, MINT_BOX);
ADD_CODE (td, get_data_item_index (td, constrained_class));
ADD_CODE (td, csignature->param_count);
}
}
virtual = FALSE;
}
}
if (target_method)
mono_class_init (target_method->klass);
CHECK_STACK (td, csignature->param_count + csignature->hasthis);
if (!calli && op == -1 && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
(target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
(target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0 &&
!(target_method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING)) {
int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
MonoMethodHeader *mheader = mono_method_get_header (target_method);
if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
int offset;
if (td->verbose_level)
g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
for (i = csignature->param_count - 1 + !!csignature->hasthis; i >= 0; --i)
store_arg (td, i);
ADD_CODE(td, MINT_BR_S);
offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
ADD_CODE(td, offset);
if (!is_bb_start [td->ip + 5 - td->il_code])
++td->ip; /* gobble the CEE_RET if it isn't branched to */
td->ip += 5;
return;
} else {
/* mheader might not exist if this is a delegate invoc, etc */
if (mheader && *mheader->code == CEE_RET && called_inited) {
if (td->verbose_level)
g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
for (i = 0; i < csignature->param_count; i++) {
ADD_CODE (td, MINT_POP); /*FIX: vt */
ADD_CODE (td, 0);
}
if (csignature->hasthis) {
if (virtual)
ADD_CODE(td, MINT_CKNULL);
ADD_CODE (td, MINT_POP);
ADD_CODE (td, 0);
}
td->sp -= csignature->param_count + csignature->hasthis;
td->ip += 5;
return;
}
}
}
if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
target_method = mono_marshal_get_synchronized_wrapper (target_method);
}
g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
td->sp -= csignature->param_count + !!csignature->hasthis;
for (i = 0; i < csignature->param_count; ++i) {
if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
gint32 size;
MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
size = mono_class_native_size (klass, NULL);
else
size = mono_class_value_size (klass, NULL);
size = (size + 7) & ~7;
vt_stack_used += size;
}
}
/* need to handle typedbyref ... */
if (csignature->ret->type != MONO_TYPE_VOID) {
int mt = mint_type(csignature->ret);
MonoClass *klass = mono_class_from_mono_type (csignature->ret);
if (mt == MINT_TYPE_VT) {
if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
vt_res_size = mono_class_native_size (klass, NULL);
else
vt_res_size = mono_class_value_size (klass, NULL);
PUSH_VT(td, vt_res_size);
}
PUSH_TYPE(td, stack_type[mt], klass);
} else
is_void = TRUE;
if (op >= 0) {
ADD_CODE (td, op);
#if SIZEOF_VOID_P == 8
if (op == MINT_LDLEN)
ADD_CODE (td, MINT_CONV_I4_I8);
#endif
if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
ADD_CODE (td, get_data_item_index (td, target_method->klass));
ADD_CODE (td, 1 + target_method->klass->rank);
}
} else if (!calli && !virtual && jit_call_supported (target_method, csignature)) {
ADD_CODE(td, MINT_JIT_CALL);
ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_imethod (domain, target_method, &error)));
mono_error_assert_ok (&error);
} else {
if (calli)
ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
else if (virtual)
ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
else
ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
if (calli) {
ADD_CODE(td, get_data_item_index (td, (void *)csignature));
} else {
ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_imethod (domain, target_method, &error)));
mono_error_cleanup (&error); /* FIXME: don't swallow the error */
}
}
td->ip += 5;
if (vt_stack_used != 0 || vt_res_size != 0) {
ADD_CODE(td, MINT_VTRESULT);
ADD_CODE(td, vt_res_size);
WRITE32(td, &vt_stack_used);
td->vt_sp -= vt_stack_used;
}
}
static MonoClassField *
interp_field_from_token (MonoMethod *method, guint32 token, MonoClass **klass, MonoGenericContext *generic_context)
{
MonoClassField *field = NULL;
if (method->wrapper_type != MONO_WRAPPER_NONE) {
field = (MonoClassField *) mono_method_get_wrapper_data (method, token);
*klass = field->parent;
} else {
MonoError error;
error_init (&error);
field = mono_field_from_token_checked (method->klass->image, token, klass, generic_context, &error);
mono_error_cleanup (&error); /* FIXME: don't swallow the error */
}
return field;
}
static InterpBasicBlock*
get_bb (TransformData *td, InterpBasicBlock *cbb, unsigned char *ip)
{
int offset = ip - td->il_code;
InterpBasicBlock *bb = td->offset_to_bb [offset];
if (!bb) {
bb = mono_mempool_alloc0 (td->mempool, sizeof (InterpBasicBlock));