Signed-off-by: Tomek Grabiec <[email protected]>
---
vm/jato.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
1 files changed, 57 insertions(+), 3 deletions(-)
diff --git a/vm/jato.c b/vm/jato.c
index c7c6e17..12badf2 100644
--- a/vm/jato.c
+++ b/vm/jato.c
@@ -86,10 +86,64 @@ static void __vm_native native_vmruntime_println(struct
vm_object *message)
free(cstr);
}
-static void __vm_native native_vmsystem_arraycopy(struct vm_object *src, int
src_start,
- struct vm_object *dest, int dest_start, int len)
+static void __vm_native
+native_vmsystem_arraycopy(struct vm_object *src, int src_start,
+ struct vm_object *dest, int dest_start, int len)
{
- NOT_IMPLEMENTED;
+ const struct vm_class *src_elem_class;
+ const struct vm_class *dest_elem_class;
+ enum vm_type elem_type;
+ int elem_size;
+ char *tmp;
+ int size;
+
+ if (!src || !dest || !src->class || !dest->class) {
+ signal_new_exception("java.lang.NullPointerException", NULL);
+ goto throw;
+ }
+
+ if (!vm_class_is_array_class(src->class) ||
+ !vm_class_is_array_class(dest->class)) {
+ signal_new_exception("java.lang.ArrayStoreException", NULL);
+ goto throw;
+ }
+
+ src_elem_class = vm_class_get_array_element_class(src->class);
+ dest_elem_class = vm_class_get_array_element_class(dest->class);
+ if (!src_elem_class || !dest_elem_class) {
+ signal_new_exception("java.lang.NullPointerException", NULL);
+ goto throw;
+ }
+
+ elem_type = vm_class_get_storage_vmtype(src_elem_class);
+ if (elem_type != vm_class_get_storage_vmtype(dest_elem_class)) {
+ NOT_IMPLEMENTED;
+ return;
+ }
+
+ if (len < 0 ||
+ src_start < 0 || src_start + len > src->array_length ||
+ dest_start < 0 || dest_start + len > dest->array_length) {
+ signal_new_exception("java.lang.ArrayIndexOutOfBoundsException",
+ NULL);
+ goto throw;
+ }
+
+ elem_size = get_vmtype_size(elem_type);
+ size = len * elem_size;
+ tmp = malloc(size);
+ if (!tmp) {
+ NOT_IMPLEMENTED;
+ return;
+ }
+
+ memcpy(tmp, src->fields + src_start * elem_size, size);
+ memcpy(dest->fields + dest_start * elem_size, tmp, size);
+ free(tmp);
+
+ return;
+ throw:
+ throw_from_native(sizeof(int) * 3 + sizeof(struct vm_object*) * 2);
}
static int32_t __vm_native native_vmsystem_identityhashcode(struct vm_object
*obj)
--
1.6.0.6
------------------------------------------------------------------------------
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