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Check reference count of objects

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Throw an error if the object reference count reached the limit.
Related issue: #118

JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com
This commit is contained in:
László Langó
2016-02-11 15:14:40 +00:00
parent 80811c8332
commit 1dde538224
5 changed files with 20 additions and 4 deletions
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jerry-core/ecma/base/ecma-gc.c
+10 -1
View File
@@ -211,7 +211,16 @@ ecma_init_gc_info (ecma_object_t *object_p) /**< object */
void
ecma_ref_object (ecma_object_t *object_p) /**< object */
{
ecma_gc_set_object_refs (object_p, ecma_gc_get_object_refs (object_p) + 1);
uint32_t ref_cnt = ecma_gc_get_object_refs (object_p);
if (ref_cnt < (uint32_t) CONFIG_ECMA_REFERENCE_COUNTER_LIMIT)
{
ecma_gc_set_object_refs (object_p, ref_cnt + 1);
}
else
{
jerry_fatal (ERR_REF_COUNT_LIMIT);
}
} /* ecma_ref_object */
/**
jerry-core/ecma/base/ecma-helpers.c
+2 -3
View File
@@ -1334,11 +1334,10 @@ ecma_get_property_descriptor_from_property (ecma_property_t *prop_p) /**< proper
void
ecma_bytecode_ref (ecma_compiled_code_t *bytecode_p) /**< byte code pointer */
{
/* Abort program if maximum reference number is reached.
* Note: This is not tested for objects. */
/* Abort program if maximum reference number is reached. */
if ((bytecode_p->status_flags >> ECMA_BYTECODE_REF_SHIFT) >= 0x3ff)
{
jerry_fatal (ERR_UNIMPLEMENTED_CASE);
jerry_fatal (ERR_REF_COUNT_LIMIT);
}
bytecode_p->status_flags = (uint16_t) (bytecode_p->status_flags + (1 << ECMA_BYTECODE_REF_SHIFT));