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icall.c
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icall.c
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/**
* \file
*
* Authors:
* Dietmar Maurer (dietmar@ximian.com)
* Paolo Molaro (lupus@ximian.com)
* Patrik Torstensson (patrik.torstensson@labs2.com)
* Marek Safar (marek.safar@gmail.com)
* Aleksey Kliger (aleksey@xamarin.com)
*
* Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
* Copyright 2004-2009 Novell, Inc (http://www.novell.com)
* Copyright 2011-2015 Xamarin Inc (http://www.xamarin.com).
* Licensed under the MIT license. See LICENSE file in the project root for full license information.
*/
#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 (HAVE_WCHAR_H)
#include <wchar.h>
#endif
#include "mono/metadata/icall-internals.h"
#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/threadpool-io.h>
#include <mono/metadata/monitor.h>
#include <mono/metadata/reflection.h>
#include <mono/metadata/image-internals.h>
#include <mono/metadata/assembly.h>
#include <mono/metadata/assembly-internals.h>
#include <mono/metadata/tabledefs.h>
#include <mono/metadata/exception.h>
#include <mono/metadata/exception-internals.h>
#include <mono/metadata/w32file.h>
#include <mono/metadata/console-io.h>
#include <mono/metadata/mono-route.h>
#include <mono/metadata/w32socket.h>
#include <mono/metadata/mono-endian.h>
#include <mono/metadata/tokentype.h>
#include <mono/metadata/metadata-internals.h>
#include <mono/metadata/class-internals.h>
#include <mono/metadata/class-init.h>
#include <mono/metadata/reflection-internals.h>
#include <mono/metadata/marshal.h>
#include <mono/metadata/gc-internals.h>
#include <mono/metadata/mono-gc.h>
#include <mono/metadata/rand.h>
#include <mono/metadata/sysmath.h>
#include <mono/metadata/appdomain-icalls.h>
#include <mono/metadata/string-icalls.h>
#include <mono/metadata/debug-helpers.h>
#include <mono/metadata/w32process.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/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/metadata/file-mmap.h>
#include <mono/metadata/seq-points-data.h>
#include <mono/metadata/icall-table.h>
#include <mono/metadata/handle.h>
#include <mono/metadata/w32mutex.h>
#include <mono/metadata/w32semaphore.h>
#include <mono/metadata/w32event.h>
#include <mono/metadata/abi-details.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-os-mutex.h>
#include <mono/utils/mono-threads.h>
#include <mono/metadata/w32error.h>
#include <mono/utils/w32api.h>
#include <mono/utils/mono-merp.h>
#include <mono/utils/mono-logger-internals.h>
#if !defined(HOST_WIN32) && defined(HAVE_SYS_UTSNAME_H)
#include <sys/utsname.h>
#endif
/* icalls are defined ICALL_EXPORT so they are not static */
#ifdef __GNUC__
#pragma GCC diagnostic ignored "-Wmissing-prototypes"
#endif
//#define MONO_DEBUG_ICALLARRAY
#ifdef MONO_DEBUG_ICALLARRAY
static char debug_icallarray; // 0:uninitialized 1:true 2:false
static gboolean
icallarray_print_enabled (void)
{
if (!debug_icallarray)
debug_icallarray = MONO_TRACE_IS_TRACED (G_LOG_LEVEL_DEBUG, MONO_TRACE_ICALLARRAY) ? 1 : 2;
return debug_icallarray == 1;
}
static void
icallarray_print (const char *format, ...)
{
if (!icallarray_print_enabled ())
return;
va_list args;
va_start (args, format);
g_printv (format, args);
va_end (args);
}
#else
#define icallarray_print_enabled() (FALSE)
#define icallarray_print(...) /* nothing */
#endif
extern MonoStringHandle ves_icall_System_Environment_GetOSVersionString (MonoError *error);
ICALL_EXPORT MonoReflectionAssemblyHandle ves_icall_System_Reflection_Assembly_GetCallingAssembly (MonoError *error);
/* Lazy class loading functions */
static GENERATE_GET_CLASS_WITH_CACHE (system_version, "System", "Version")
static GENERATE_GET_CLASS_WITH_CACHE (assembly_name, "System.Reflection", "AssemblyName")
static GENERATE_GET_CLASS_WITH_CACHE (constructor_info, "System.Reflection", "ConstructorInfo")
static GENERATE_GET_CLASS_WITH_CACHE (property_info, "System.Reflection", "PropertyInfo")
static GENERATE_GET_CLASS_WITH_CACHE (event_info, "System.Reflection", "EventInfo")
static GENERATE_GET_CLASS_WITH_CACHE (module, "System.Reflection", "Module")
static void
array_set_value_impl (MonoArrayHandle arr, MonoObjectHandle value, guint32 pos, MonoError *error);
static MonoArrayHandle
type_array_from_modifiers (MonoImage *image, MonoType *type, int optional, MonoError *error);
static inline MonoBoolean
is_generic_parameter (MonoType *type)
{
return !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR);
}
#ifndef HOST_WIN32
static inline void
mono_icall_make_platform_path (gchar *path)
{
return;
}
static inline const gchar *
mono_icall_get_file_path_prefix (const gchar *path)
{
return "file://";
}
#endif /* HOST_WIN32 */
ICALL_EXPORT MonoObjectHandle
ves_icall_System_Array_GetValueImpl (MonoArrayHandle array, guint32 pos, MonoError *error)
{
MonoClass * const array_class = mono_handle_class (array);
MonoClass * const element_class = m_class_get_element_class (array_class);
if (m_class_is_valuetype (element_class)) {
gsize element_size = mono_array_element_size (array_class);
gpointer element_address = mono_array_addr_with_size_fast (MONO_HANDLE_RAW (array), element_size, (gsize)pos);
return mono_value_box_handle (MONO_HANDLE_DOMAIN (array), element_class, element_address, error);
}
MonoObjectHandle result = mono_new_null ();
mono_handle_array_getref (result, array, pos);
return result;
}
ICALL_EXPORT MonoObjectHandle
ves_icall_System_Array_GetValue (MonoArrayHandle arr, MonoArrayHandle indices, MonoError *error)
{
MONO_CHECK_ARG_NULL_HANDLE (indices, NULL_HANDLE);
MonoClass * const indices_class = mono_handle_class (indices);
MonoClass * const array_class = mono_handle_class (arr);
g_assert (m_class_get_rank (indices_class) == 1);
if (MONO_HANDLE_GETVAL (indices, bounds) || MONO_HANDLE_GETVAL (indices, max_length) != m_class_get_rank (array_class)) {
mono_error_set_argument (error, NULL, NULL);
return NULL_HANDLE;
}
gint32 index = 0;
if (!MONO_HANDLE_GETVAL (arr, bounds)) {
MONO_HANDLE_ARRAY_GETVAL (index, indices, gint32, 0);
if (index < 0 || index >= MONO_HANDLE_GETVAL (arr, max_length)) {
mono_error_set_index_out_of_range (error);
return NULL_HANDLE;
}
return ves_icall_System_Array_GetValueImpl (arr, index, error);
}
for (gint32 i = 0; i < m_class_get_rank (array_class); i++) {
MONO_HANDLE_ARRAY_GETVAL (index, indices, gint32, i);
if ((index < MONO_HANDLE_GETVAL (arr, bounds [i].lower_bound)) ||
(index >= (mono_array_lower_bound_t)MONO_HANDLE_GETVAL (arr, bounds [i].length) + MONO_HANDLE_GETVAL (arr, bounds [i].lower_bound))) {
mono_error_set_index_out_of_range (error);
return NULL_HANDLE;
}
}
MONO_HANDLE_ARRAY_GETVAL (index, indices, gint32, 0);
gint32 pos = index - MONO_HANDLE_GETVAL (arr, bounds [0].lower_bound);
for (gint32 i = 1; i < m_class_get_rank (array_class); i++) {
MONO_HANDLE_ARRAY_GETVAL (index, indices, gint32, i);
pos = pos * MONO_HANDLE_GETVAL (arr, bounds [i].length) + index -
MONO_HANDLE_GETVAL (arr, bounds [i].lower_bound);
}
return ves_icall_System_Array_GetValueImpl (arr, pos, error);
}
ICALL_EXPORT void
ves_icall_System_Array_SetValueImpl (MonoArrayHandle arr, MonoObjectHandle value, guint32 pos, MonoError *error)
{
array_set_value_impl (arr, value, pos, error);
}
static void
array_set_value_impl (MonoArrayHandle arr, MonoObjectHandle value, guint32 pos, MonoError *error)
{
MonoClass *ac, *vc, *ec;
gint32 esize, vsize;
gpointer *ea, *va;
guint64 u64 = 0;
gint64 i64 = 0;
gdouble r64 = 0;
uint32_t arr_gchandle = 0;
uint32_t value_gchandle = 0;
error_init (error);
if (!MONO_HANDLE_IS_NULL (value))
vc = mono_handle_class (value);
else
vc = NULL;
ac = mono_handle_class (arr);
ec = m_class_get_element_class (ac);
esize = mono_array_element_size (ac);
ea = (gpointer*)mono_array_handle_pin_with_size (arr, esize, pos, &arr_gchandle);
if (mono_class_is_nullable (ec)) {
mono_nullable_init_from_handle ((guint8*)ea, value, ec);
goto leave;
}
if (MONO_HANDLE_IS_NULL (value)) {
mono_gc_bzero_atomic (ea, esize);
goto leave;
}
#define NO_WIDENING_CONVERSION G_STMT_START{ \
mono_error_set_argument (error, "value", "not a widening conversion"); \
goto leave; \
}G_STMT_END
#define CHECK_WIDENING_CONVERSION(extra) G_STMT_START{ \
if (esize < vsize + (extra)) { \
mono_error_set_argument (error, "value", "not a widening conversion"); \
goto leave; \
} \
}G_STMT_END
#define INVALID_CAST G_STMT_START{ \
mono_get_runtime_callbacks ()->set_cast_details (vc, ec); \
mono_error_set_invalid_cast (error); \
goto leave; \
}G_STMT_END
MonoTypeEnum et;
et = m_class_get_byval_arg (ec)->type;
MonoTypeEnum vt;
vt = m_class_get_byval_arg (vc)->type;
/* Check element (destination) type. */
switch (et) {
case MONO_TYPE_STRING:
switch (vt) {
case MONO_TYPE_STRING:
break;
default:
INVALID_CAST;
}
break;
case MONO_TYPE_BOOLEAN:
switch (vt) {
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;
default:
break;
}
MonoObjectHandle inst;
inst = mono_object_handle_isinst (value, ec, error);
goto_if_nok (error, leave);
gboolean castOk;
castOk = !MONO_HANDLE_IS_NULL (inst);
if (!m_class_is_valuetype (ec)) {
if (!castOk)
INVALID_CAST;
MONO_HANDLE_ARRAY_SETREF (arr, pos, value);
goto leave;
}
if (castOk) {
va = (gpointer*)mono_object_handle_pin_unbox (value, &value_gchandle);
if (m_class_has_references (ec))
mono_value_copy (ea, va, ec);
else
mono_gc_memmove_atomic (ea, va, esize);
mono_gchandle_free (value_gchandle);
value_gchandle = 0;
goto leave;
}
if (!m_class_is_valuetype (vc))
INVALID_CAST;
va = (gpointer*)mono_object_handle_pin_unbox (value, &value_gchandle);
vsize = mono_class_value_size (vc, NULL);
if (et == MONO_TYPE_VALUETYPE && m_class_is_enumtype (m_class_get_byval_arg (ec)->data.klass))
et = mono_class_enum_basetype (m_class_get_byval_arg (ec)->data.klass)->type;
if (vt == MONO_TYPE_VALUETYPE && m_class_is_enumtype (m_class_get_byval_arg (vc)->data.klass))
vt = mono_class_enum_basetype (m_class_get_byval_arg (vc)->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; \
goto leave; \
/* 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; \
goto leave; \
/* 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; \
goto leave; \
/* 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; \
goto leave; \
/* 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; \
goto leave; \
case MONO_TYPE_U1: \
case MONO_TYPE_U2: \
case MONO_TYPE_U4: \
case MONO_TYPE_U8: \
case MONO_TYPE_CHAR: \
*(etype *) ea = (etype) u64; \
goto leave; \
} \
}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 fall thru. */
g_assert_not_reached ();
#undef INVALID_CAST
#undef NO_WIDENING_CONVERSION
#undef CHECK_WIDENING_CONVERSION
#undef ASSIGN_UNSIGNED
#undef ASSIGN_SIGNED
#undef ASSIGN_REAL
leave:
if (arr_gchandle)
mono_gchandle_free (arr_gchandle);
if (value_gchandle)
mono_gchandle_free (value_gchandle);
return;
}
ICALL_EXPORT void
ves_icall_System_Array_SetValue (MonoArrayHandle arr, MonoObjectHandle value,
MonoArrayHandle idxs, MonoError *error)
{
icallarray_print ("%s\n", __func__);
MonoArrayBounds dim;
MonoClass *ac, *ic;
gint32 idx;
gint32 i, pos;
error_init (error);
if (MONO_HANDLE_IS_NULL (idxs)) {
mono_error_set_argument_null (error, "idxs", "");
return;
}
ic = mono_handle_class (idxs);
ac = mono_handle_class (arr);
g_assert (m_class_get_rank (ic) == 1);
if (mono_handle_array_has_bounds (idxs) || MONO_HANDLE_GETVAL (idxs, max_length) != m_class_get_rank (ac)) {
mono_error_set_argument (error, "idxs", "");
return;
}
if (!mono_handle_array_has_bounds (arr)) {
MONO_HANDLE_ARRAY_GETVAL (idx, idxs, gint32, 0);
if (idx < 0 || idx >= MONO_HANDLE_GETVAL (arr, max_length)) {
mono_error_set_exception_instance (error, mono_get_exception_index_out_of_range ());
return;
}
array_set_value_impl (arr, value, idx, error);
return;
}
gint32 ac_rank = m_class_get_rank (ac);
for (i = 0; i < ac_rank; i++) {
mono_handle_array_get_bounds_dim (arr, i, &dim);
MONO_HANDLE_ARRAY_GETVAL (idx, idxs, gint32, i);
if ((idx < dim.lower_bound) ||
(idx >= (mono_array_lower_bound_t)dim.length + dim.lower_bound)) {
mono_error_set_exception_instance (error, mono_get_exception_index_out_of_range ());
return;
}
}
MONO_HANDLE_ARRAY_GETVAL (idx, idxs, gint32, 0);
mono_handle_array_get_bounds_dim (arr, 0, &dim);
pos = idx - dim.lower_bound;
for (i = 1; i < ac_rank; i++) {
mono_handle_array_get_bounds_dim (arr, i, &dim);
MONO_HANDLE_ARRAY_GETVAL (idx, idxs, gint32, i);
pos = pos * dim.length + idx - dim.lower_bound;
}
array_set_value_impl (arr, value, pos, error);
}
ICALL_EXPORT MonoArrayHandle
ves_icall_System_Array_CreateInstanceImpl (MonoReflectionTypeHandle type, MonoArrayHandle lengths, MonoArrayHandle bounds, MonoError *error)
{
// FIXME? fixed could be used for lengths, bounds.
icallarray_print ("%s type:%p length:%p bounds:%p\n", __func__, type, lengths, bounds);
MONO_CHECK_ARG_NULL_HANDLE (type, NULL_HANDLE_ARRAY);
MONO_CHECK_ARG_NULL_HANDLE (lengths, NULL_HANDLE_ARRAY);
MONO_CHECK_ARG (lengths, mono_array_handle_length (lengths) > 0, NULL_HANDLE_ARRAY);
if (!MONO_HANDLE_IS_NULL (bounds))
MONO_CHECK_ARG (bounds, mono_array_handle_length (lengths) == mono_array_handle_length (bounds), NULL_HANDLE_ARRAY);
for (uintptr_t i = 0; i < mono_array_handle_length (lengths); ++i) {
gint32 length = 0;
MONO_HANDLE_ARRAY_GETVAL (length, lengths, gint32, i);
if (length < 0) {
mono_error_set_argument_out_of_range (error, NULL);
return NULL_HANDLE_ARRAY;
}
}
MonoClass *klass = mono_class_from_mono_type (MONO_HANDLE_GETVAL (type, type));
if (!mono_class_init_checked (klass, error))
return NULL_HANDLE_ARRAY;
if (m_class_get_byval_arg (m_class_get_element_class (klass))->type == MONO_TYPE_VOID) {
mono_error_set_not_supported (error, "Arrays of System.Void are not supported.");
return NULL_HANDLE_ARRAY;
}
/* vectors are not the same as one dimensional arrays with non-zero bounds */
gboolean bounded = FALSE;
if (!MONO_HANDLE_IS_NULL (bounds) && mono_array_handle_length (bounds) == 1) {
gint32 bound0 = 0;
MONO_HANDLE_ARRAY_GETVAL (bound0, bounds, gint32, 0);
bounded = bound0 != 0;
}
MonoClass * const aklass = mono_class_create_bounded_array (klass, mono_array_handle_length (lengths), bounded);
uintptr_t const aklass_rank = m_class_get_rank (aklass);
uintptr_t * const sizes = g_newa (uintptr_t, aklass_rank);
intptr_t * const lower_bounds = g_newa (intptr_t, aklass_rank);
// Copy lengths and lower_bounds from gint32 to [u]intptr_t.
for (uintptr_t i = 0; i < aklass_rank; ++i) {
MONO_HANDLE_ARRAY_GETVAL (sizes [i], lengths, gint32, i);
if (!MONO_HANDLE_IS_NULL (bounds))
MONO_HANDLE_ARRAY_GETVAL (lower_bounds [i], bounds, gint32, i);
else
lower_bounds [i] = 0;
}
return mono_array_new_full_handle (MONO_HANDLE_DOMAIN (type), aklass, sizes, lower_bounds, error);
}
ICALL_EXPORT gint32
ves_icall_System_Array_GetRank (MonoObjectHandle arr, MonoError *error)
{
gint32 const result = m_class_get_rank (mono_handle_class (arr));
icallarray_print ("%s arr:%p res:%d\n", __func__, MONO_HANDLE_RAW (arr), result);
return result;
}
static mono_array_size_t
mono_array_get_length (MonoArrayHandle arr, gint32 dimension, MonoError *error)
{
if (dimension < 0 || dimension >= m_class_get_rank (mono_handle_class (arr))) {
mono_error_set_index_out_of_range (error);
return 0;
}
return MONO_HANDLE_GETVAL (arr, bounds) ? MONO_HANDLE_GETVAL (arr, bounds [dimension].length)
: MONO_HANDLE_GETVAL (arr, max_length);
}
ICALL_EXPORT gint32
ves_icall_System_Array_GetLength (MonoArrayHandle arr, gint32 dimension, MonoError *error)
{
icallarray_print ("%s arr:%p dimension:%d\n", __func__, MONO_HANDLE_RAW (arr), (int)dimension);
mono_array_size_t const length = mono_array_get_length (arr, dimension, error);
if (length > G_MAXINT32) {
mono_error_set_overflow (error);
return 0;
}
return (gint32)length;
}
ICALL_EXPORT gint64
ves_icall_System_Array_GetLongLength (MonoArrayHandle arr, gint32 dimension, MonoError *error)
{
icallarray_print ("%s arr:%p dimension:%d\n", __func__, MONO_HANDLE_RAW (arr), (int)dimension);
return (gint64)mono_array_get_length (arr, dimension, error);
}
ICALL_EXPORT gint32
ves_icall_System_Array_GetLowerBound (MonoArrayHandle arr, gint32 dimension, MonoError *error)
{
icallarray_print ("%s arr:%p dimension:%d\n", __func__, MONO_HANDLE_RAW (arr), (int)dimension);
if (dimension < 0 || dimension >= m_class_get_rank (mono_handle_class (arr))) {
mono_error_set_index_out_of_range (error);
return 0;
}
return MONO_HANDLE_GETVAL (arr, bounds) ? MONO_HANDLE_GETVAL (arr, bounds [dimension].lower_bound)
: 0;
}
ICALL_EXPORT void
ves_icall_System_Array_ClearInternal (MonoArrayHandle arr, int idx, int length, MonoError *error)
{
icallarray_print ("%s arr:%p idx:%d len:%d\n", __func__, MONO_HANDLE_RAW (arr), (int)idx, (int)length);
int sz = mono_array_element_size (mono_handle_class (arr));
mono_gc_bzero_atomic (mono_array_addr_with_size_fast (MONO_HANDLE_RAW (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 = m_class_get_element_class (src_vtable->klass);
dest_class = m_class_get_element_class (dest_vtable->klass);
/*
* 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 && m_class_is_valuetype (dest_class))
return FALSE;
/* Check if we're copying a char[] <==> (u)short[] */
if (src_class != dest_class) {
if (m_class_is_valuetype (dest_class) || m_class_is_enumtype (dest_class) ||
m_class_is_valuetype (src_class) || m_class_is_valuetype (src_class))
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 (m_class_is_valuetype (dest_class)) {
element_size = mono_array_element_size (source->obj.vtable->klass);
source_addr = mono_array_addr_with_size_fast (source, element_size, source_idx);
if (m_class_has_references (dest_class)) {
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 (MonoArray *arr, guint32 pos, gpointer value)
{
// Generic ref/out parameters are not supported by HANDLES(), so NOHANDLES().
icallarray_print ("%s arr:%p pos:%u value:%p\n", __func__, arr, pos, value);
MONO_REQ_GC_UNSAFE_MODE; // because of gpointer value
MonoClass *ac;
gint32 esize;
gpointer *ea;
ac = mono_object_class (arr);
esize = mono_array_element_size (ac);
ea = (gpointer*)((char*)arr->vector + (pos * esize));
mono_gc_memmove_atomic (value, ea, esize);
}
ICALL_EXPORT void
ves_icall_System_Array_SetGenericValueImpl (MonoArray *arr, guint32 pos, gpointer value)
{
// Generic ref/out parameters are not supported by HANDLES(), so NOHANDLES().
icallarray_print ("%s arr:%p pos:%u value:%p\n", __func__, arr, pos, value);
MONO_REQ_GC_UNSAFE_MODE; // because of gpointer value
MonoClass *ac, *ec;
gint32 esize;
gpointer *ea;
ac = mono_object_class (arr);
ec = m_class_get_element_class (ac);
esize = mono_array_element_size (ac);
ea = (gpointer*)((char*)arr->vector + (pos * esize));
if (MONO_TYPE_IS_REFERENCE (m_class_get_byval_arg (ec))) {
g_assert (esize == sizeof (gpointer));
mono_gc_wbarrier_generic_store (ea, *(MonoObject **)value);
} else {
g_assert (m_class_is_inited (ec));
g_assert (esize == mono_class_value_size (ec, NULL));
if (m_class_has_references (ec))
mono_gc_wbarrier_value_copy (ea, value, 1, ec);
else
mono_gc_memmove_atomic (ea, value, esize);
}
}
ICALL_EXPORT void
ves_icall_System_Runtime_RuntimeImports_Memmove (guint8 *destination, guint8 *source, guint byte_count)
{
mono_gc_memmove_atomic (destination, source, byte_count);
}
ICALL_EXPORT void
ves_icall_System_Runtime_RuntimeImports_Memmove_wbarrier (guint8 *destination, guint8 *source, guint len, MonoType *type)
{
if (MONO_TYPE_IS_REFERENCE (type))
mono_gc_wbarrier_arrayref_copy (destination, source, len);
else
mono_gc_wbarrier_value_copy (destination, source, len, mono_class_from_mono_type (type));
}
ICALL_EXPORT void
ves_icall_System_Runtime_RuntimeImports_ZeroMemory (guint8 *p, guint byte_length)
{
memset (p, 0, byte_length);
}
ICALL_EXPORT void
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_InitializeArray (MonoArrayHandle array, MonoClassField *field_handle, MonoError *error)
{
MonoClass *klass = mono_handle_class (array);
guint32 size = mono_array_element_size (klass);
MonoType *type = mono_type_get_underlying_type (m_class_get_byval_arg (m_class_get_element_class (klass)));
int align;
const char *field_data;
if (MONO_TYPE_IS_REFERENCE (type) || type->type == MONO_TYPE_VALUETYPE) {
mono_error_set_argument (error, "array", "Cannot initialize array of non-primitive type");
return;
}
MonoType *field_type = mono_field_get_type_checked (field_handle, error);
if (!field_type)
return;
if (!(field_type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA)) {
mono_error_set_argument_format (error, "field_handle", "Field '%s' doesn't have an RVA", mono_field_get_name (field_handle));
return;
}
size *= MONO_HANDLE_GETVAL(array, max_length);
field_data = mono_field_get_data (field_handle);
if (size > mono_type_size (field_handle->type, &align)) {
mono_error_set_argument (error, "field_handle", "Field not large enough to fill array");
return;
}
#if G_BYTE_ORDER != G_LITTLE_ENDIAN
#define SWAP(n) { \
guint ## n *data = (guint ## n *) mono_array_addr (MONO_HANDLE_RAW(array), char, 0); \
guint ## n *src = (guint ## n *) field_data; \
int i, \
nEnt = (size / sizeof(guint ## n)); \
\
for (i = 0; i < nEnt; i++) { \
data[i] = read ## n (&src[i]); \
} \
}
/* 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 (MONO_HANDLE_RAW(array), char, 0), field_data, size);
break;
}
#else
memcpy (mono_array_addr (MONO_HANDLE_RAW(array), char, 0), field_data, size);
#endif
}
ICALL_EXPORT gint
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_GetOffsetToStringData (void)
{
return offsetof (MonoString, chars);
}
ICALL_EXPORT MonoObject *
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_GetObjectValue (MonoObject *obj)
{
if ((obj == NULL) || !m_class_is_valuetype (mono_object_class (obj)))
return obj;
else {
ERROR_DECL (error);
MonoObject *ret = mono_object_clone_checked (obj, error);
mono_error_set_pending_exception (error);
return ret;
}
}
ICALL_EXPORT void
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_RunClassConstructor (MonoType *handle)
{
ERROR_DECL (error);
MonoClass *klass;
MonoVTable *vtable;
MONO_CHECK_ARG_NULL (handle,);
klass = mono_class_from_mono_type (handle);
MONO_CHECK_ARG (handle, klass,);
if (mono_class_is_gtd (klass))
return;
vtable = mono_class_vtable_checked (mono_domain_get (), klass, error);
if (!is_ok (error)) {
mono_error_set_pending_exception (error);
return;
}
/* This will call the type constructor */
if (!mono_runtime_class_init_full (vtable, error))
mono_error_set_pending_exception (error);
}
ICALL_EXPORT void
ves_icall_System_Runtime_CompilerServices_RuntimeHelpers_RunModuleConstructor (MonoImage *image)
{
ERROR_DECL (error);