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icall.c
8445 lines (7059 loc) · 227 KB
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icall.c
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/*
* icall.c:
*
* Authors:
* Dietmar Maurer (dietmar@ximian.com)
* Paolo Molaro (lupus@ximian.com)
* Patrik Torstensson (patrik.torstensson@labs2.com)
* Marek Safar (marek.safar@gmail.com)
*
* Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
* Copyright 2004-2009 Novell, Inc (http://www.novell.com)
* Copyright 2011-2014 Xamarin Inc (http://www.xamarin.com).
*/
#include <config.h>
#include <glib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#ifdef HAVE_ALLOCA_H
#include <alloca.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#if defined (HOST_WIN32)
#include <stdlib.h>
#endif
#if defined (HAVE_WCHAR_H)
#include <wchar.h>
#endif
#include "mono/utils/mono-membar.h"
#include <mono/metadata/object.h>
#include <mono/metadata/threads.h>
#include <mono/metadata/threads-types.h>
#include <mono/metadata/threadpool.h>
#include <mono/metadata/monitor.h>
#include <mono/metadata/reflection.h>
#include <mono/metadata/assembly.h>
#include <mono/metadata/tabledefs.h>
#include <mono/metadata/exception.h>
#include <mono/metadata/file-io.h>
#include <mono/metadata/console-io.h>
#include <mono/metadata/socket-io.h>
#include <mono/metadata/mono-endian.h>
#include <mono/metadata/tokentype.h>
#include <mono/metadata/domain-internals.h>
#include <mono/metadata/metadata-internals.h>
#include <mono/metadata/class-internals.h>
#include <mono/metadata/marshal.h>
#include <mono/metadata/gc-internal.h>
#include <mono/metadata/mono-gc.h>
#include <mono/metadata/rand.h>
#include <mono/metadata/sysmath.h>
#include <mono/metadata/string-icalls.h>
#include <mono/metadata/debug-helpers.h>
#include <mono/metadata/process.h>
#include <mono/metadata/environment.h>
#include <mono/metadata/profiler-private.h>
#include <mono/metadata/locales.h>
#include <mono/metadata/filewatcher.h>
#include <mono/metadata/char-conversions.h>
#include <mono/metadata/security.h>
#include <mono/metadata/mono-config.h>
#include <mono/metadata/cil-coff.h>
#include <mono/metadata/number-formatter.h>
#include <mono/metadata/security-manager.h>
#include <mono/metadata/security-core-clr.h>
#include <mono/metadata/mono-perfcounters.h>
#include <mono/metadata/mono-debug.h>
#include <mono/metadata/mono-ptr-array.h>
#include <mono/metadata/verify-internals.h>
#include <mono/metadata/runtime.h>
#include <mono/io-layer/io-layer.h>
#include <mono/utils/strtod.h>
#include <mono/utils/monobitset.h>
#include <mono/utils/mono-time.h>
#include <mono/utils/mono-proclib.h>
#include <mono/utils/mono-string.h>
#include <mono/utils/mono-error-internals.h>
#include <mono/utils/mono-mmap.h>
#include <mono/utils/mono-io-portability.h>
#include <mono/utils/mono-digest.h>
#include <mono/utils/bsearch.h>
#include <mono/utils/mono-mutex.h>
#include <mono/utils/mono-threads.h>
#if defined (HOST_WIN32)
#include <windows.h>
#include <shlobj.h>
#endif
#include "decimal.h"
extern MonoString* ves_icall_System_Environment_GetOSVersionString (void) MONO_INTERNAL;
ICALL_EXPORT MonoReflectionAssembly* ves_icall_System_Reflection_Assembly_GetCallingAssembly (void);
static MonoArray*
type_array_from_modifiers (MonoImage *image, MonoType *type, int optional);
static inline MonoBoolean
is_generic_parameter (MonoType *type)
{
return !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR);
}
static void
mono_class_init_or_throw (MonoClass *klass)
{
if (!mono_class_init (klass))
mono_raise_exception (mono_class_get_exception_for_failure (klass));
}
/*
* We expect a pointer to a char, not a string
*/
ICALL_EXPORT gboolean
mono_double_ParseImpl (char *ptr, double *result)
{
gchar *endptr = NULL;
*result = 0.0;
MONO_ARCH_SAVE_REGS;
#ifdef __arm__
if (*ptr)
*result = strtod (ptr, &endptr);
#else
if (*ptr){
/* mono_strtod () is not thread-safe */
EnterCriticalSection (&mono_strtod_mutex);
*result = mono_strtod (ptr, &endptr);
LeaveCriticalSection (&mono_strtod_mutex);
}
#endif
if (!*ptr || (endptr && *endptr))
return FALSE;
return TRUE;
}
ICALL_EXPORT MonoObject *
ves_icall_System_Array_GetValueImpl (MonoObject *this, guint32 pos)
{
MonoClass *ac;
MonoArray *ao;
gint32 esize;
gpointer *ea;
MONO_ARCH_SAVE_REGS;
ao = (MonoArray *)this;
ac = (MonoClass *)ao->obj.vtable->klass;
esize = mono_array_element_size (ac);
ea = (gpointer*)((char*)ao->vector + (pos * esize));
if (ac->element_class->valuetype)
return mono_value_box (this->vtable->domain, ac->element_class, ea);
else
return *ea;
}
ICALL_EXPORT MonoObject *
ves_icall_System_Array_GetValue (MonoObject *this, MonoObject *idxs)
{
MonoClass *ac, *ic;
MonoArray *ao, *io;
gint32 i, pos, *ind;
MONO_ARCH_SAVE_REGS;
MONO_CHECK_ARG_NULL (idxs);
io = (MonoArray *)idxs;
ic = (MonoClass *)io->obj.vtable->klass;
ao = (MonoArray *)this;
ac = (MonoClass *)ao->obj.vtable->klass;
g_assert (ic->rank == 1);
if (io->bounds != NULL || io->max_length != ac->rank)
mono_raise_exception (mono_get_exception_argument (NULL, NULL));
ind = (gint32 *)io->vector;
if (ao->bounds == NULL) {
if (*ind < 0 || *ind >= ao->max_length)
mono_raise_exception (mono_get_exception_index_out_of_range ());
return ves_icall_System_Array_GetValueImpl (this, *ind);
}
for (i = 0; i < ac->rank; i++)
if ((ind [i] < ao->bounds [i].lower_bound) ||
(ind [i] >= (mono_array_lower_bound_t)ao->bounds [i].length + ao->bounds [i].lower_bound))
mono_raise_exception (mono_get_exception_index_out_of_range ());
pos = ind [0] - ao->bounds [0].lower_bound;
for (i = 1; i < ac->rank; i++)
pos = pos*ao->bounds [i].length + ind [i] -
ao->bounds [i].lower_bound;
return ves_icall_System_Array_GetValueImpl (this, pos);
}
ICALL_EXPORT void
ves_icall_System_Array_SetValueImpl (MonoArray *this, MonoObject *value, guint32 pos)
{
MonoClass *ac, *vc, *ec;
gint32 esize, vsize;
gpointer *ea, *va;
int et, vt;
guint64 u64 = 0;
gint64 i64 = 0;
gdouble r64 = 0;
MONO_ARCH_SAVE_REGS;
if (value)
vc = value->vtable->klass;
else
vc = NULL;
ac = this->obj.vtable->klass;
ec = ac->element_class;
esize = mono_array_element_size (ac);
ea = (gpointer*)((char*)this->vector + (pos * esize));
va = (gpointer*)((char*)value + sizeof (MonoObject));
if (mono_class_is_nullable (ec)) {
mono_nullable_init ((guint8*)ea, value, ec);
return;
}
if (!value) {
mono_gc_bzero_atomic (ea, esize);
return;
}
#define NO_WIDENING_CONVERSION G_STMT_START{\
mono_raise_exception (mono_get_exception_argument ( \
"value", "not a widening conversion")); \
}G_STMT_END
#define CHECK_WIDENING_CONVERSION(extra) G_STMT_START{\
if (esize < vsize + (extra)) \
mono_raise_exception (mono_get_exception_argument ( \
"value", "not a widening conversion")); \
}G_STMT_END
#define INVALID_CAST G_STMT_START{ \
mono_get_runtime_callbacks ()->set_cast_details (vc, ec); \
mono_raise_exception (mono_get_exception_invalid_cast ()); \
}G_STMT_END
/* Check element (destination) type. */
switch (ec->byval_arg.type) {
case MONO_TYPE_STRING:
switch (vc->byval_arg.type) {
case MONO_TYPE_STRING:
break;
default:
INVALID_CAST;
}
break;
case MONO_TYPE_BOOLEAN:
switch (vc->byval_arg.type) {
case MONO_TYPE_BOOLEAN:
break;
case MONO_TYPE_CHAR:
case MONO_TYPE_U1:
case MONO_TYPE_U2:
case MONO_TYPE_U4:
case MONO_TYPE_U8:
case MONO_TYPE_I1:
case MONO_TYPE_I2:
case MONO_TYPE_I4:
case MONO_TYPE_I8:
case MONO_TYPE_R4:
case MONO_TYPE_R8:
NO_WIDENING_CONVERSION;
default:
INVALID_CAST;
}
break;
}
if (!ec->valuetype) {
if (!mono_object_isinst (value, ec))
INVALID_CAST;
mono_gc_wbarrier_set_arrayref (this, ea, (MonoObject*)value);
return;
}
if (mono_object_isinst (value, ec)) {
if (ec->has_references)
mono_value_copy (ea, (char*)value + sizeof (MonoObject), ec);
else
mono_gc_memmove_atomic (ea, (char *)value + sizeof (MonoObject), esize);
return;
}
if (!vc->valuetype)
INVALID_CAST;
vsize = mono_class_instance_size (vc) - sizeof (MonoObject);
et = ec->byval_arg.type;
if (et == MONO_TYPE_VALUETYPE && ec->byval_arg.data.klass->enumtype)
et = mono_class_enum_basetype (ec->byval_arg.data.klass)->type;
vt = vc->byval_arg.type;
if (vt == MONO_TYPE_VALUETYPE && vc->byval_arg.data.klass->enumtype)
vt = mono_class_enum_basetype (vc->byval_arg.data.klass)->type;
#define ASSIGN_UNSIGNED(etype) G_STMT_START{\
switch (vt) { \
case MONO_TYPE_U1: \
case MONO_TYPE_U2: \
case MONO_TYPE_U4: \
case MONO_TYPE_U8: \
case MONO_TYPE_CHAR: \
CHECK_WIDENING_CONVERSION(0); \
*(etype *) ea = (etype) u64; \
return; \
/* You can't assign a signed value to an unsigned array. */ \
case MONO_TYPE_I1: \
case MONO_TYPE_I2: \
case MONO_TYPE_I4: \
case MONO_TYPE_I8: \
/* You can't assign a floating point number to an integer array. */ \
case MONO_TYPE_R4: \
case MONO_TYPE_R8: \
NO_WIDENING_CONVERSION; \
} \
}G_STMT_END
#define ASSIGN_SIGNED(etype) G_STMT_START{\
switch (vt) { \
case MONO_TYPE_I1: \
case MONO_TYPE_I2: \
case MONO_TYPE_I4: \
case MONO_TYPE_I8: \
CHECK_WIDENING_CONVERSION(0); \
*(etype *) ea = (etype) i64; \
return; \
/* You can assign an unsigned value to a signed array if the array's */ \
/* element size is larger than the value size. */ \
case MONO_TYPE_U1: \
case MONO_TYPE_U2: \
case MONO_TYPE_U4: \
case MONO_TYPE_U8: \
case MONO_TYPE_CHAR: \
CHECK_WIDENING_CONVERSION(1); \
*(etype *) ea = (etype) u64; \
return; \
/* You can't assign a floating point number to an integer array. */ \
case MONO_TYPE_R4: \
case MONO_TYPE_R8: \
NO_WIDENING_CONVERSION; \
} \
}G_STMT_END
#define ASSIGN_REAL(etype) G_STMT_START{\
switch (vt) { \
case MONO_TYPE_R4: \
case MONO_TYPE_R8: \
CHECK_WIDENING_CONVERSION(0); \
*(etype *) ea = (etype) r64; \
return; \
/* All integer values fit into a floating point array, so we don't */ \
/* need to CHECK_WIDENING_CONVERSION here. */ \
case MONO_TYPE_I1: \
case MONO_TYPE_I2: \
case MONO_TYPE_I4: \
case MONO_TYPE_I8: \
*(etype *) ea = (etype) i64; \
return; \
case MONO_TYPE_U1: \
case MONO_TYPE_U2: \
case MONO_TYPE_U4: \
case MONO_TYPE_U8: \
case MONO_TYPE_CHAR: \
*(etype *) ea = (etype) u64; \
return; \
} \
}G_STMT_END
switch (vt) {
case MONO_TYPE_U1:
u64 = *(guint8 *) va;
break;
case MONO_TYPE_U2:
u64 = *(guint16 *) va;
break;
case MONO_TYPE_U4:
u64 = *(guint32 *) va;
break;
case MONO_TYPE_U8:
u64 = *(guint64 *) va;
break;
case MONO_TYPE_I1:
i64 = *(gint8 *) va;
break;
case MONO_TYPE_I2:
i64 = *(gint16 *) va;
break;
case MONO_TYPE_I4:
i64 = *(gint32 *) va;
break;
case MONO_TYPE_I8:
i64 = *(gint64 *) va;
break;
case MONO_TYPE_R4:
r64 = *(gfloat *) va;
break;
case MONO_TYPE_R8:
r64 = *(gdouble *) va;
break;
case MONO_TYPE_CHAR:
u64 = *(guint16 *) va;
break;
case MONO_TYPE_BOOLEAN:
/* Boolean is only compatible with itself. */
switch (et) {
case MONO_TYPE_CHAR:
case MONO_TYPE_U1:
case MONO_TYPE_U2:
case MONO_TYPE_U4:
case MONO_TYPE_U8:
case MONO_TYPE_I1:
case MONO_TYPE_I2:
case MONO_TYPE_I4:
case MONO_TYPE_I8:
case MONO_TYPE_R4:
case MONO_TYPE_R8:
NO_WIDENING_CONVERSION;
default:
INVALID_CAST;
}
break;
}
/* If we can't do a direct copy, let's try a widening conversion. */
switch (et) {
case MONO_TYPE_CHAR:
ASSIGN_UNSIGNED (guint16);
case MONO_TYPE_U1:
ASSIGN_UNSIGNED (guint8);
case MONO_TYPE_U2:
ASSIGN_UNSIGNED (guint16);
case MONO_TYPE_U4:
ASSIGN_UNSIGNED (guint32);
case MONO_TYPE_U8:
ASSIGN_UNSIGNED (guint64);
case MONO_TYPE_I1:
ASSIGN_SIGNED (gint8);
case MONO_TYPE_I2:
ASSIGN_SIGNED (gint16);
case MONO_TYPE_I4:
ASSIGN_SIGNED (gint32);
case MONO_TYPE_I8:
ASSIGN_SIGNED (gint64);
case MONO_TYPE_R4:
ASSIGN_REAL (gfloat);
case MONO_TYPE_R8:
ASSIGN_REAL (gdouble);
}
INVALID_CAST;
/* Not reached, INVALID_CAST does not return. Just to avoid a compiler warning ... */
return;
#undef INVALID_CAST
#undef NO_WIDENING_CONVERSION
#undef CHECK_WIDENING_CONVERSION
#undef ASSIGN_UNSIGNED
#undef ASSIGN_SIGNED
#undef ASSIGN_REAL
}
ICALL_EXPORT void
ves_icall_System_Array_SetValue (MonoArray *this, MonoObject *value,
MonoArray *idxs)
{
MonoClass *ac, *ic;
gint32 i, pos, *ind;
MONO_ARCH_SAVE_REGS;
MONO_CHECK_ARG_NULL (idxs);
ic = idxs->obj.vtable->klass;
ac = this->obj.vtable->klass;
g_assert (ic->rank == 1);
if (idxs->bounds != NULL || idxs->max_length != ac->rank)
mono_raise_exception (mono_get_exception_argument (NULL, NULL));
ind = (gint32 *)idxs->vector;
if (this->bounds == NULL) {
if (*ind < 0 || *ind >= this->max_length)
mono_raise_exception (mono_get_exception_index_out_of_range ());
ves_icall_System_Array_SetValueImpl (this, value, *ind);
return;
}
for (i = 0; i < ac->rank; i++)
if ((ind [i] < this->bounds [i].lower_bound) ||
(ind [i] >= (mono_array_lower_bound_t)this->bounds [i].length + this->bounds [i].lower_bound))
mono_raise_exception (mono_get_exception_index_out_of_range ());
pos = ind [0] - this->bounds [0].lower_bound;
for (i = 1; i < ac->rank; i++)
pos = pos * this->bounds [i].length + ind [i] -
this->bounds [i].lower_bound;
ves_icall_System_Array_SetValueImpl (this, value, pos);
}
ICALL_EXPORT MonoArray *
ves_icall_System_Array_CreateInstanceImpl (MonoReflectionType *type, MonoArray *lengths, MonoArray *bounds)
{
MonoClass *aklass, *klass;
MonoArray *array;
uintptr_t *sizes, i;
gboolean bounded = FALSE;
MONO_ARCH_SAVE_REGS;
MONO_CHECK_ARG_NULL (type);
MONO_CHECK_ARG_NULL (lengths);
MONO_CHECK_ARG (lengths, mono_array_length (lengths) > 0);
if (bounds)
MONO_CHECK_ARG (bounds, mono_array_length (lengths) == mono_array_length (bounds));
for (i = 0; i < mono_array_length (lengths); i++)
if (mono_array_get (lengths, gint32, i) < 0)
mono_raise_exception (mono_get_exception_argument_out_of_range (NULL));
klass = mono_class_from_mono_type (type->type);
mono_class_init_or_throw (klass);
if (bounds && (mono_array_length (bounds) == 1) && (mono_array_get (bounds, gint32, 0) != 0))
/* vectors are not the same as one dimensional arrays with no-zero bounds */
bounded = TRUE;
else
bounded = FALSE;
aklass = mono_bounded_array_class_get (klass, mono_array_length (lengths), bounded);
sizes = alloca (aklass->rank * sizeof(intptr_t) * 2);
for (i = 0; i < aklass->rank; ++i) {
sizes [i] = mono_array_get (lengths, guint32, i);
if (bounds)
sizes [i + aklass->rank] = mono_array_get (bounds, gint32, i);
else
sizes [i + aklass->rank] = 0;
}
array = mono_array_new_full (mono_object_domain (type), aklass, sizes, (intptr_t*)sizes + aklass->rank);
return array;
}
ICALL_EXPORT MonoArray *
ves_icall_System_Array_CreateInstanceImpl64 (MonoReflectionType *type, MonoArray *lengths, MonoArray *bounds)
{
MonoClass *aklass, *klass;
MonoArray *array;
uintptr_t *sizes, i;
gboolean bounded = FALSE;
MONO_ARCH_SAVE_REGS;
MONO_CHECK_ARG_NULL (type);
MONO_CHECK_ARG_NULL (lengths);
MONO_CHECK_ARG (lengths, mono_array_length (lengths) > 0);
if (bounds)
MONO_CHECK_ARG (bounds, mono_array_length (lengths) == mono_array_length (bounds));
for (i = 0; i < mono_array_length (lengths); i++)
if ((mono_array_get (lengths, gint64, i) < 0) ||
(mono_array_get (lengths, gint64, i) > MONO_ARRAY_MAX_INDEX))
mono_raise_exception (mono_get_exception_argument_out_of_range (NULL));
klass = mono_class_from_mono_type (type->type);
mono_class_init_or_throw (klass);
if (bounds && (mono_array_length (bounds) == 1) && (mono_array_get (bounds, gint64, 0) != 0))
/* vectors are not the same as one dimensional arrays with no-zero bounds */
bounded = TRUE;
else
bounded = FALSE;
aklass = mono_bounded_array_class_get (klass, mono_array_length (lengths), bounded);
sizes = alloca (aklass->rank * sizeof(intptr_t) * 2);
for (i = 0; i < aklass->rank; ++i) {
sizes [i] = mono_array_get (lengths, guint64, i);
if (bounds)
sizes [i + aklass->rank] = (mono_array_size_t) mono_array_get (bounds, guint64, i);
else
sizes [i + aklass->rank] = 0;
}
array = mono_array_new_full (mono_object_domain (type), aklass, sizes, (intptr_t*)sizes + aklass->rank);
return array;
}
ICALL_EXPORT gint32
ves_icall_System_Array_GetRank (MonoObject *this)
{
MONO_ARCH_SAVE_REGS;
return this->vtable->klass->rank;
}
ICALL_EXPORT gint32
ves_icall_System_Array_GetLength (MonoArray *this, gint32 dimension)
{
gint32 rank = ((MonoObject *)this)->vtable->klass->rank;
uintptr_t length;
MONO_ARCH_SAVE_REGS;
if ((dimension < 0) || (dimension >= rank))
mono_raise_exception (mono_get_exception_index_out_of_range ());
if (this->bounds == NULL)
length = this->max_length;
else
length = this->bounds [dimension].length;
#ifdef MONO_BIG_ARRAYS
if (length > G_MAXINT32)
mono_raise_exception (mono_get_exception_overflow ());
#endif
return length;
}
ICALL_EXPORT gint64
ves_icall_System_Array_GetLongLength (MonoArray *this, gint32 dimension)
{
gint32 rank = ((MonoObject *)this)->vtable->klass->rank;
MONO_ARCH_SAVE_REGS;
if ((dimension < 0) || (dimension >= rank))
mono_raise_exception (mono_get_exception_index_out_of_range ());
if (this->bounds == NULL)
return this->max_length;
return this->bounds [dimension].length;
}
ICALL_EXPORT gint32
ves_icall_System_Array_GetLowerBound (MonoArray *this, gint32 dimension)
{
gint32 rank = ((MonoObject *)this)->vtable->klass->rank;
MONO_ARCH_SAVE_REGS;
if ((dimension < 0) || (dimension >= rank))
mono_raise_exception (mono_get_exception_index_out_of_range ());
if (this->bounds == NULL)
return 0;
return this->bounds [dimension].lower_bound;
}
ICALL_EXPORT void
ves_icall_System_Array_ClearInternal (MonoArray *arr, int idx, int length)
{
int sz = mono_array_element_size (mono_object_class (arr));
mono_gc_bzero_atomic (mono_array_addr_with_size_fast (arr, sz, idx), length * sz);
}
ICALL_EXPORT gboolean
ves_icall_System_Array_FastCopy (MonoArray *source, int source_idx, MonoArray* dest, int dest_idx, int length)
{
int element_size;
void * dest_addr;
void * source_addr;
MonoVTable *src_vtable;
MonoVTable *dest_vtable;
MonoClass *src_class;
MonoClass *dest_class;
src_vtable = source->obj.vtable;
dest_vtable = dest->obj.vtable;
if (src_vtable->rank != dest_vtable->rank)
return FALSE;
if (source->bounds || dest->bounds)
return FALSE;
/* there's no integer overflow since mono_array_length returns an unsigned integer */
if ((dest_idx + length > mono_array_length_fast (dest)) ||
(source_idx + length > mono_array_length_fast (source)))
return FALSE;
src_class = src_vtable->klass->element_class;
dest_class = dest_vtable->klass->element_class;
/*
* Handle common cases.
*/
/* Case1: object[] -> valuetype[] (ArrayList::ToArray)
We fallback to managed here since we need to typecheck each boxed valuetype before storing them in the dest array.
*/
if (src_class == mono_defaults.object_class && dest_class->valuetype)
return FALSE;
/* Check if we're copying a char[] <==> (u)short[] */
if (src_class != dest_class) {
if (dest_class->valuetype || dest_class->enumtype || src_class->valuetype || src_class->enumtype)
return FALSE;
/* It's only safe to copy between arrays if we can ensure the source will always have a subtype of the destination. We bail otherwise. */
if (!mono_class_is_subclass_of (src_class, dest_class, FALSE))
return FALSE;
}
if (dest_class->valuetype) {
element_size = mono_array_element_size (source->obj.vtable->klass);
source_addr = mono_array_addr_with_size_fast (source, element_size, source_idx);
if (dest_class->has_references) {
mono_value_copy_array (dest, dest_idx, source_addr, length);
} else {
dest_addr = mono_array_addr_with_size_fast (dest, element_size, dest_idx);
mono_gc_memmove_atomic (dest_addr, source_addr, element_size * length);
}
} else {
mono_array_memcpy_refs_fast (dest, dest_idx, source, source_idx, length);
}
return TRUE;
}
ICALL_EXPORT void
ves_icall_System_Array_GetGenericValueImpl (MonoObject *this, guint32 pos, gpointer value)
{
MonoClass *ac;
MonoArray *ao;
gint32 esize;
gpointer *ea;
MONO_ARCH_SAVE_REGS;
ao = (MonoArray *)this;
ac = (MonoClass *)ao->obj.vtable->klass;
esize = mono_array_element_size (ac);
ea = (gpointer*)((char*)ao->vector + (pos * esize));
mono_gc_memmove_atomic (value, ea, esize);
}
ICALL_EXPORT void
ves_icall_System_Array_SetGenericValueImpl (MonoObject *this, guint32 pos, gpointer value)
{
MonoClass *ac, *ec;
MonoArray *ao;
gint32 esize;
gpointer *ea;
MONO_ARCH_SAVE_REGS;
ao = (MonoArray *)this;
ac = (MonoClass *)ao->obj.vtable->klass;
ec = ac->element_class;
esize = mono_array_element_size (ac);
ea = (gpointer*)((char*)ao->vector + (pos * esize));
if (MONO_TYPE_IS_REFERENCE (&ec->byval_arg)) {
g_assert (esize == sizeof (gpointer));
mono_gc_wbarrier_generic_store (ea, *(gpointer*)value);
} else {
g_assert (ec->inited);
g_assert (esize == mono_class_value_size (ec, NULL));
if (ec->has_references)
mono_gc_wbarrier_value_copy (ea, value, 1, ec);
else
mono_gc_memmove_atomic (ea, value, esize);
}
}
ICALL_EXPORT void
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_InitializeArray (MonoArray *array, MonoClassField *field_handle)
{
MonoClass *klass = array->obj.vtable->klass;
guint32 size = mono_array_element_size (klass);
MonoType *type = mono_type_get_underlying_type (&klass->element_class->byval_arg);
int align;
const char *field_data;
if (MONO_TYPE_IS_REFERENCE (type) || type->type == MONO_TYPE_VALUETYPE) {
MonoException *exc = mono_get_exception_argument("array",
"Cannot initialize array of non-primitive type.");
mono_raise_exception (exc);
}
if (!(field_handle->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA)) {
MonoException *exc = mono_get_exception_argument("field_handle",
"Field doesn't have an RVA");
mono_raise_exception (exc);
}
size *= array->max_length;
field_data = mono_field_get_data (field_handle);
if (size > mono_type_size (field_handle->type, &align)) {
MonoException *exc = mono_get_exception_argument("field_handle",
"Field not large enough to fill array");
mono_raise_exception (exc);
}
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
#define SWAP(n) {\
guint ## n *data = (guint ## n *) mono_array_addr (array, char, 0); \
guint ## n *src = (guint ## n *) field_data; \
guint ## n *end = (guint ## n *)((char*)src + size); \
\
for (; src < end; data++, src++) { \
*data = read ## n (src); \
} \
}
/* printf ("Initialize array with elements of %s type\n", klass->element_class->name); */
switch (type->type) {
case MONO_TYPE_CHAR:
case MONO_TYPE_I2:
case MONO_TYPE_U2:
SWAP (16);
break;
case MONO_TYPE_I4:
case MONO_TYPE_U4:
case MONO_TYPE_R4:
SWAP (32);
break;
case MONO_TYPE_I8:
case MONO_TYPE_U8:
case MONO_TYPE_R8:
SWAP (64);
break;
default:
memcpy (mono_array_addr (array, char, 0), field_data, size);
break;
}
#else
memcpy (mono_array_addr (array, char, 0), field_data, size);
#endif
}
ICALL_EXPORT gint
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_GetOffsetToStringData (void)
{
MONO_ARCH_SAVE_REGS;
return offsetof (MonoString, chars);
}
ICALL_EXPORT MonoObject *
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_GetObjectValue (MonoObject *obj)
{
MONO_ARCH_SAVE_REGS;
if ((obj == NULL) || (! (obj->vtable->klass->valuetype)))
return obj;
else
return mono_object_clone (obj);
}
ICALL_EXPORT void
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_RunClassConstructor (MonoType *handle)
{
MonoClass *klass;
MonoVTable *vtable;
MONO_CHECK_ARG_NULL (handle);
klass = mono_class_from_mono_type (handle);
MONO_CHECK_ARG (handle, klass);
vtable = mono_class_vtable_full (mono_domain_get (), klass, TRUE);
/* This will call the type constructor */
mono_runtime_class_init (vtable);
}
ICALL_EXPORT void
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_RunModuleConstructor (MonoImage *image)
{
MONO_ARCH_SAVE_REGS;
mono_image_check_for_module_cctor (image);
if (image->has_module_cctor) {
MonoClass *module_klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | 1);
/*It's fine to raise the exception here*/
mono_runtime_class_init (mono_class_vtable_full (mono_domain_get (), module_klass, TRUE));
}
}
ICALL_EXPORT MonoBoolean
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_SufficientExecutionStack (void)
{
guint8 *stack_addr;
guint8 *current;
size_t stack_size;
/* later make this configurable and per-arch */
int min_size = 4096 * 4 * sizeof (void*);
mono_thread_info_get_stack_bounds (&stack_addr, &stack_size);
/* if we have no info we are optimistic and assume there is enough room */
if (!stack_addr)
return TRUE;
#ifdef HOST_WIN32
// FIXME: Windows dynamically extends the stack, so stack_addr might be close
// to the current sp
return TRUE;
#endif
current = (guint8 *)&stack_addr;
if (current > stack_addr) {
if ((current - stack_addr) < min_size)
return FALSE;
} else {
if (current - (stack_addr - stack_size) < min_size)
return FALSE;
}
return TRUE;
}
ICALL_EXPORT MonoObject *
ves_icall_System_Object_MemberwiseClone (MonoObject *this)
{
MONO_ARCH_SAVE_REGS;
return mono_object_clone (this);
}
ICALL_EXPORT gint32
ves_icall_System_ValueType_InternalGetHashCode (MonoObject *this, MonoArray **fields)
{
MonoClass *klass;
MonoObject **values = NULL;
MonoObject *o;
int count = 0;
gint32 result = (int)(gsize)mono_defaults.int32_class;
MonoClassField* field;
gpointer iter;
MONO_ARCH_SAVE_REGS;
klass = mono_object_class (this);
if (mono_class_num_fields (klass) == 0)
return result;
/*
* Compute the starting value of the hashcode for fields of primitive
* types, and return the remaining fields in an array to the managed side.
* This way, we can avoid costly reflection operations in managed code.
*/
iter = NULL;
while ((field = mono_class_get_fields (klass, &iter))) {
if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
continue;
if (mono_field_is_deleted (field))
continue;
/* FIXME: Add more types */
switch (field->type->type) {
case MONO_TYPE_I4:
result ^= *(gint32*)((guint8*)this + field->offset);
break;
case MONO_TYPE_STRING: {
MonoString *s;
s = *(MonoString**)((guint8*)this + field->offset);
if (s != NULL)
result ^= mono_string_hash (s);
break;
}