void
_gum_duk_push_native_pointer (duk_context * ctx,
gpointer address,
GumDukCore * core)
{
GumDukNativePointerImpl * ptr;
ptr = core->cached_native_pointers;
if (ptr != NULL)
{
core->cached_native_pointers = ptr->next;
duk_push_heapptr (ctx, ptr->object);
ptr->parent.value = address;
duk_push_global_stash (ctx);
duk_del_prop_string (ctx, -1, ptr->id);
duk_pop (ctx);
return;
}
duk_push_heapptr (ctx, core->native_pointer);
duk_push_pointer (ctx, address);
duk_new (ctx, 1);
}
void ObjectList::AddObject(void *val) {
Isolate *isolate = Isolate::GetCurrent();
duk_context *ctx = isolate->GetDukContext();
duk_push_heapptr(ctx, list_ptr_);
duk_push_heapptr(ctx, val);
duk_size_t len = duk_get_length(ctx, -1);
duk_put_prop_index(ctx, -2, (duk_uarridx_t) len);
duk_pop(ctx);
}
static void
gum_duk_invocation_listener_on_enter (GumInvocationListener * listener,
GumInvocationContext * ic)
{
GumDukInvocationListener * self = GUM_DUK_INVOCATION_LISTENER_CAST (listener);
if (gum_script_backend_is_ignoring (
gum_invocation_context_get_thread_id (ic)))
return;
if (self->on_enter != NULL)
{
GumDukInterceptor * module = self->module;
GumDukCore * core = module->core;
duk_context * ctx = core->ctx;
GumDukScope scope;
GumDukInvocationContext * jic;
GumDukInvocationArgs * args;
_gum_duk_scope_enter (&scope, core);
jic = _gum_duk_interceptor_obtain_invocation_context (module);
_gum_duk_invocation_context_reset (jic, ic);
args = gum_duk_interceptor_obtain_invocation_args (module);
gum_duk_invocation_args_reset (args, ic);
duk_push_heapptr (ctx, self->on_enter);
duk_push_heapptr (ctx, jic->object);
duk_push_heapptr (ctx, args->object);
_gum_duk_scope_call_method (&scope, 1);
duk_pop (ctx);
gum_duk_invocation_args_reset (args, NULL);
gum_duk_interceptor_release_invocation_args (module, args);
_gum_duk_invocation_context_reset (jic, NULL);
if (self->on_leave != NULL)
{
*GUM_LINCTX_GET_FUNC_INVDATA (ic, GumDukHeapPtr) = jic;
}
else
{
_gum_duk_interceptor_release_invocation_context (module, jic);
}
_gum_duk_scope_leave (&scope);
}
}
static gboolean
gum_kernel_scan_context_emit_match (GumAddress address,
gsize size,
GumKernelScanContext * self)
{
GumDukCore * core = self->core;
GumDukScope scope;
duk_context * ctx;
gboolean proceed;
ctx = _gum_duk_scope_enter (&scope, core);
duk_push_heapptr (ctx, self->on_match);
_gum_duk_push_uint64 (ctx, address, core);
duk_push_number (ctx, size);
proceed = TRUE;
if (_gum_duk_scope_call (&scope, 2))
{
if (duk_is_string (ctx, -1))
proceed = strcmp (duk_require_string (ctx, -1), "stop") != 0;
}
duk_pop (ctx);
_gum_duk_scope_leave (&scope);
return proceed;
}
GumDukCpuContext *
_gum_duk_push_cpu_context (duk_context * ctx,
GumCpuContext * handle,
GumDukCpuContextAccess access,
GumDukCore * core)
{
GumDukCpuContext * scc;
scc = g_slice_new (GumDukCpuContext);
duk_push_heapptr (ctx, core->cpu_context);
duk_new (ctx, 0);
_gum_duk_put_data (ctx, -1, scc);
scc->object = duk_require_heapptr (ctx, -1);
if (access == GUM_CPU_CONTEXT_READWRITE)
{
scc->handle = handle;
}
else
{
memcpy (&scc->storage, handle, sizeof (GumCpuContext));
scc->handle = &scc->storage;
}
scc->access = access;
return scc;
}
static gboolean
gum_duk_exception_handler_on_exception (GumExceptionDetails * details,
gpointer user_data)
{
GumDukExceptionHandler * handler = user_data;
GumDukCore * core = handler->core;
GumDukScope scope;
duk_context * ctx;
GumDukCpuContext * cpu_context;
gboolean handled = FALSE;
ctx = _gum_duk_scope_enter (&scope, core);
_gum_duk_push_exception_details (ctx, details, core, &cpu_context);
duk_push_heapptr (ctx, handler->callback);
duk_dup (ctx, -2);
if (_gum_duk_scope_call (&scope, 1))
{
if (duk_is_boolean (ctx, -1))
handled = duk_require_boolean (ctx, -1);
}
_gum_duk_cpu_context_make_read_only (cpu_context);
duk_pop_2 (ctx);
_gum_duk_scope_leave (&scope);
return handled;
}
static gboolean
gum_emit_malloc_range (const GumMallocRangeDetails * details,
gpointer user_data)
{
GumDukMatchContext * mc = user_data;
GumDukScope * scope = mc->scope;
duk_context * ctx = scope->ctx;
gboolean proceed = TRUE;
duk_push_heapptr (ctx, mc->on_match);
duk_push_object (ctx);
_gum_duk_push_native_pointer (ctx,
GSIZE_TO_POINTER (details->range->base_address), scope->core);
duk_put_prop_string (ctx, -2, "base");
duk_push_uint (ctx, details->range->size);
duk_put_prop_string (ctx, -2, "size");
if (_gum_duk_scope_call_sync (scope, 1))
{
if (duk_is_string (ctx, -1))
proceed = strcmp (duk_require_string (ctx, -1), "stop") != 0;
}
else
{
proceed = FALSE;
}
duk_pop (ctx);
return proceed;
}
static gboolean
gum_emit_range (const GumRangeDetails * details,
gpointer user_data)
{
GumDukMatchContext * mc = user_data;
GumDukScope * scope = mc->scope;
duk_context * ctx = scope->ctx;
gboolean proceed = TRUE;
duk_push_heapptr (ctx, mc->on_match);
_gum_duk_push_range (ctx, details, scope->core);
if (_gum_duk_scope_call_sync (scope, 1))
{
if (duk_is_string (ctx, -1))
proceed = strcmp (duk_require_string (ctx, -1), "stop") != 0;
}
else
{
proceed = FALSE;
}
duk_pop (ctx);
return proceed;
}
static void remapCallback(void* data, s32 x, s32 y, RemapResult* result)
{
RemapData* remap = (RemapData*)data;
duk_context* duk = remap->duk;
duk_push_heapptr(duk, remap->remap);
duk_push_int(duk, result->index);
duk_push_int(duk, x);
duk_push_int(duk, y);
duk_pcall(duk, 3);
if(duk_is_array(duk, -1))
{
duk_get_prop_index(duk, -1, 0);
result->index = duk_to_int(duk, -1);
duk_pop(duk);
duk_get_prop_index(duk, -1, 1);
result->flip = duk_to_int(duk, -1);
duk_pop(duk);
duk_get_prop_index(duk, -1, 2);
result->rotate = duk_to_int(duk, -1);
duk_pop(duk);
}
else
{
result->index = duk_to_int(duk, -1);
}
duk_pop(duk);
}
static void
gum_duk_invocation_listener_on_leave (GumInvocationListener * listener,
GumInvocationContext * ic)
{
GumDukInvocationListener * self = GUM_DUK_INVOCATION_LISTENER_CAST (listener);
if (gum_script_backend_is_ignoring (
gum_invocation_context_get_thread_id (ic)))
return;
if (self->on_leave != NULL)
{
GumDukInterceptor * module = self->module;
GumDukCore * core = module->core;
duk_context * ctx = core->ctx;
GumDukScope scope;
GumDukInvocationContext * jic;
GumDukInvocationReturnValue * retval;
_gum_duk_scope_enter (&scope, core);
jic = (self->on_enter != NULL)
? *GUM_LINCTX_GET_FUNC_INVDATA (ic, GumDukInvocationContext *)
: NULL;
if (jic == NULL)
{
jic = _gum_duk_interceptor_obtain_invocation_context (module);
}
_gum_duk_invocation_context_reset (jic, ic);
retval = gum_duk_interceptor_obtain_invocation_return_value (module);
gum_duk_invocation_return_value_reset (retval, ic);
duk_push_heapptr (ctx, self->on_leave);
duk_push_heapptr (ctx, jic->object);
duk_push_heapptr (ctx, retval->object);
_gum_duk_scope_call_method (&scope, 1);
duk_pop (ctx);
gum_duk_invocation_return_value_reset (retval, NULL);
gum_duk_interceptor_release_invocation_return_value (module, retval);
_gum_duk_invocation_context_reset (jic, NULL);
_gum_duk_interceptor_release_invocation_context (module, jic);
_gum_duk_scope_leave (&scope);
}
void
_gum_duk_push_uint64 (duk_context * ctx,
guint64 value,
GumDukCore * core)
{
duk_push_heapptr (ctx, core->uint64);
duk_push_pointer (ctx, &value);
duk_new (ctx, 1);
}
gboolean
_gum_duk_get_pointer (duk_context * ctx,
duk_idx_t index,
GumDukCore * core,
gpointer * ptr)
{
gboolean success = TRUE;
duk_dup (ctx, index);
duk_push_heapptr (ctx, core->native_pointer);
if (duk_is_pointer (ctx, -2))
{
*ptr = duk_require_pointer (ctx, -2);
}
else if (duk_instanceof (ctx, -2, -1))
{
GumDukNativePointer * p;
p = _gum_duk_require_data (ctx, -2);
*ptr = p->value;
}
else if (duk_is_object (ctx, -2))
{
gboolean is_native_pointer;
duk_get_prop_string (ctx, -2, "handle");
is_native_pointer = duk_instanceof (ctx, -1, -2);
if (is_native_pointer)
{
GumDukNativePointer * p;
p = _gum_duk_require_data (ctx, -1);
*ptr = p->value;
}
else
{
success = FALSE;
}
duk_pop (ctx);
}
else
{
success = FALSE;
}
duk_pop_2 (ctx);
return success;
}
void
_gum_duk_push_native_resource (duk_context * ctx,
gpointer data,
GDestroyNotify notify,
GumDukCore * core)
{
duk_push_heapptr (ctx, core->native_resource);
duk_push_pointer (ctx, data);
duk_push_pointer (ctx, GUM_FUNCPTR_TO_POINTER (notify));
duk_new (ctx, 2);
}
GumDukNativePointer *
_gum_duk_require_native_pointer (duk_context * ctx,
duk_idx_t index,
GumDukCore * core)
{
duk_dup (ctx, index);
duk_push_heapptr (ctx, core->native_pointer);
if (!duk_instanceof (ctx, -2, -1))
_gum_duk_throw (ctx, "expected NativePointer");
duk_pop_2 (ctx);
return _gum_duk_require_data (ctx, index);
}
static int _worker_dispatch_cb (evHandle *handle){
comoWorker *worker = handle->data;
duk_context *ctx = worker->Mainctx;
mtx_lock(&worker->mtx);
QUEUE *q;
while ( !QUEUE_EMPTY(&worker->queueOut) ){
q = QUEUE_HEAD(&(worker)->queueOut);
QUEUE_REMOVE(q);
comoQueue *queue = QUEUE_DATA(q, comoQueue, queue);
if (worker->destroy != 0){
goto FREE;
}
duk_push_heapptr(ctx, worker->self);
if (duk_get_type(ctx, -1) != DUK_TYPE_OBJECT){
dump_stack(ctx, "DUK");
assert(0);
}
como_push_worker_value(ctx, queue);
duk_call(ctx, 1);
duk_pop(ctx);
FREE :
/* free except in case of pointers */
if (queue->data != NULL && queue->type != DUK_TYPE_POINTER){
free(queue->data);
}
free(queue);
}
mtx_unlock(&worker->mtx);
if (worker->destroy == 2){
duk_push_global_stash(ctx);
duk_get_prop_string(ctx, -1, "comoWorkersCallBack");
duk_push_number(ctx, (double) handle->id);
duk_del_prop(ctx, -2);
handle_close(handle);
free(worker);
}
return 0;
}
static duk_ret_t test_api_example(duk_context *ctx) {
void *ptr;
duk_eval_string(ctx, "({ foo: 'bar' })");
ptr = duk_get_heapptr(ctx, -1);
duk_put_global_string(ctx, "ref");
duk_set_top(ctx, 0);
duk_push_heapptr(ctx, ptr);
duk_get_prop_string(ctx, -1, "foo");
printf("obj.foo: %s\n", duk_safe_to_string(ctx, -1)); /* prints 'bar' */
printf("final top: %ld\n", (long) duk_get_top(ctx));
return 0;
}
guint64
_gum_duk_require_uint64 (duk_context * ctx,
duk_idx_t index,
GumDukCore * core)
{
GumDukUInt64 * object;
duk_dup (ctx, index);
duk_push_heapptr (ctx, core->uint64);
if (!duk_instanceof (ctx, -2, -1))
_gum_duk_throw (ctx, "expected UInt64");
duk_pop_2 (ctx);
object = _gum_duk_require_data (ctx, index);
return object->value;
}
static void
gum_kernel_scan_context_run (GumKernelScanContext * self)
{
GumDukCore * core = self->core;
GumDukScope script_scope;
duk_context * ctx;
gum_kernel_scan (&self->range, self->pattern,
(GumMemoryScanMatchFunc) gum_kernel_scan_context_emit_match, self);
ctx = _gum_duk_scope_enter (&script_scope, core);
duk_push_heapptr (ctx, self->on_complete);
_gum_duk_scope_call (&script_scope, 0);
duk_pop (ctx);
_gum_duk_scope_leave (&script_scope);
}
gboolean
_gum_duk_get_uint64 (duk_context * ctx,
duk_idx_t index,
GumDukCore * core,
guint64 * u)
{
if (duk_is_pointer (ctx, index))
{
*u = *((const guint64 *) duk_require_pointer (ctx, index));
return TRUE;
}
else if (duk_is_number (ctx, index))
{
duk_double_t number;
number = duk_require_number (ctx, index);
if (number < 0)
return FALSE;
*u = (guint64) number;
return TRUE;
}
else
{
gboolean success = FALSE;
duk_dup (ctx, index);
duk_push_heapptr (ctx, core->uint64);
if (duk_instanceof (ctx, -2, -1))
{
GumDukUInt64 * object;
object = _gum_duk_require_data (ctx, -2);
*u = object->value;
success = TRUE;
}
duk_pop_2 (ctx);
return success;
}
}
void
_gum_duk_protect (duk_context * ctx,
GumDukHeapPtr object)
{
gchar name[32];
duk_uint_t ref_count;
if (object == NULL)
return;
sprintf (name, "protected_%p", object);
duk_push_global_stash (ctx);
duk_get_prop_string (ctx, -1, name);
if (duk_is_undefined (ctx, -1))
{
duk_pop (ctx);
duk_push_object (ctx);
duk_push_heapptr (ctx, object);
duk_put_prop_string (ctx, -2, "o");
ref_count = 1;
duk_push_uint (ctx, ref_count);
duk_put_prop_string (ctx, -2, "n");
duk_put_prop_string (ctx, -2, name);
}
else
{
duk_get_prop_string (ctx, -1, "n");
ref_count = duk_get_uint (ctx, -1);
duk_pop (ctx);
ref_count++;
duk_push_uint (ctx, ref_count);
duk_put_prop_string (ctx, -2, "n");
duk_pop (ctx);
}
duk_pop (ctx);
}
JavaScriptObject::~JavaScriptObject() {
if (!m_instance) {
// Instance has already been cleaned up.
return;
}
// The instance still exists - detach from it.
duk_push_global_object(m_context);
duk_push_heapptr(m_context, m_instance);
// Remove this pointer from the JS object's property.
if (duk_get_prop_string(m_context, -1, WRAPPER_THIS_PROP_NAME)) {
const duk_size_t length = duk_get_length(m_context, -1);
for (duk_uarridx_t i = 0; i < length; ++i) {
duk_get_prop_index(m_context, -1, i);
const void* ptr = duk_get_pointer(m_context, -1);
duk_pop(m_context);
if (this == ptr) {
// Remove this object from the array.
duk_del_prop_index(m_context, -1, i);
break;
}
}
}
// Pop the array (or undefined if there was none).
duk_pop(m_context);
if (m_nextFinalizer) {
// Reset to the object's previous finalizer.
duk_push_c_function(m_context, m_nextFinalizer, 1);
duk_set_finalizer(m_context, -2);
}
// Pop the instance & global object.
duk_pop_2(m_context);
}
gboolean
_gum_duk_get_int64 (duk_context * ctx,
duk_idx_t index,
GumDukCore * core,
gint64 * i)
{
if (duk_is_pointer (ctx, index))
{
*i = *((const gint64 *) duk_require_pointer (ctx, index));
return TRUE;
}
else if (duk_is_number (ctx, index))
{
*i = (gint64) duk_require_number (ctx, index);
return TRUE;
}
else
{
gboolean success = FALSE;
duk_dup (ctx, index);
duk_push_heapptr (ctx, core->int64);
if (duk_instanceof (ctx, -2, -1))
{
GumDukInt64 * object;
object = _gum_duk_require_data (ctx, -2);
*i = object->value;
success = TRUE;
}
duk_pop_2 (ctx);
return success;
}
}
GumCpuContext *
_gum_duk_get_cpu_context (duk_context * ctx,
duk_idx_t index,
GumDukCore * core)
{
gboolean is_cpu_context;
GumDukCpuContext * instance;
if (!duk_is_object (ctx, index))
return NULL;
duk_dup (ctx, index);
duk_push_heapptr (ctx, core->cpu_context);
is_cpu_context = duk_instanceof (ctx, -2, -1);
duk_pop_2 (ctx);
if (!is_cpu_context)
return NULL;
instance = _gum_duk_require_data (ctx, index);
return instance->handle;
}
void
_gum_duk_add_properties_to_class_by_heapptr (
duk_context * ctx,
GumDukHeapPtr klass,
const GumDukPropertyEntry * entries)
{
const GumDukPropertyEntry * entry;
duk_push_heapptr (ctx, klass);
for (entry = entries; entry->name != NULL; entry++)
{
int idx = 1;
int flags = DUK_DEFPROP_HAVE_ENUMERABLE | DUK_DEFPROP_ENUMERABLE;
duk_push_string (ctx, entry->name);
idx++;
if (entry->getter != NULL)
{
idx++;
flags |= DUK_DEFPROP_HAVE_GETTER;
duk_push_c_function (ctx, entry->getter, 0);
}
if (entry->setter != NULL)
{
idx++;
flags |= DUK_DEFPROP_HAVE_SETTER;
duk_push_c_function (ctx, entry->setter, 1);
}
duk_def_prop (ctx, -idx, flags);
}
duk_pop (ctx);
}
int GlobalStash::AddObject(void *ptr) {
Isolate *isolate = Isolate::GetCurrent();
duk_context *ctx = isolate->GetDukContext();
// Get the "refs" array in the heap stash
duk_push_global_stash(ctx);
duk_get_prop_string(ctx, -1, name_);
duk_remove(ctx, -2);
int type = duk_get_type(ctx, -1);
int freeSlot;
// freeSlot = scopeList[0]
duk_get_prop_index(ctx, -1, 0); // <scopeList> <scopeList[0]>
freeSlot = duk_get_int(ctx, -1);
duk_pop(ctx); // <scopeList>
if (freeSlot != 0) {
// scopeList[0] = scopeList[freeSlot]
duk_get_prop_index(ctx, -1, (duk_uarridx_t) freeSlot); // <scopeList> <scopeList[freeSlot]>
duk_put_prop_index(ctx, -2, 0); // <scopeList>
} else {
// freeSlot = scopeList.length;
freeSlot = (int) duk_get_length(ctx, -1);
}
duk_push_heapptr(ctx, ptr); // <scopeList> <scope>
// scopeList[freeSlot] = scope
duk_put_prop_index(ctx, -2, (duk_uarridx_t) freeSlot); // <scopeList>
// Remove the refs array from the stack.
duk_pop(ctx); //
return freeSlot;
}
static gboolean
gum_emit_module_range (const GumKernelModuleRangeDetails * details,
GumDukMatchContext * mc)
{
GumDukScope * scope = mc->scope;
duk_context * ctx = scope->ctx;
gboolean proceed = TRUE;
duk_push_heapptr (ctx, mc->on_match);
duk_push_object (ctx);
duk_push_string (ctx, details->name);
duk_put_prop_string (ctx, -2, "name");
_gum_duk_push_uint64 (ctx, details->address, scope->core);
duk_put_prop_string (ctx, -2, "base");
duk_push_uint (ctx, details->size);
duk_put_prop_string (ctx, -2, "size");
_gum_duk_push_page_protection (ctx, details->protection);
duk_put_prop_string (ctx, -2, "protection");
if (_gum_duk_scope_call_sync (scope, 1))
{
if (duk_is_string (ctx, -1))
proceed = strcmp (duk_require_string (ctx, -1), "stop") != 0;
}
else
{
proceed = FALSE;
}
duk_pop (ctx);
return proceed;
}
static gboolean
gum_emit_thread (const GumThreadDetails * details,
gpointer user_data)
{
GumDukMatchContext * mc = user_data;
GumDukScope * scope = mc->scope;
duk_context * ctx = scope->ctx;
gboolean proceed = TRUE;
if (gum_script_backend_is_ignoring (details->id))
return TRUE;
duk_push_heapptr (ctx, mc->on_match);
duk_push_object (ctx);
duk_push_uint (ctx, details->id);
duk_put_prop_string (ctx, -2, "id");
duk_push_string (ctx, _gum_duk_thread_state_to_string (details->state));
duk_put_prop_string (ctx, -2, "state");
_gum_duk_push_cpu_context (ctx, (GumCpuContext *) &details->cpu_context,
GUM_CPU_CONTEXT_READONLY, scope->core);
duk_put_prop_string (ctx, -2, "context");
if (_gum_duk_scope_call_sync (scope, 1))
{
if (duk_is_string (ctx, -1))
proceed = strcmp (duk_require_string (ctx, -1), "stop") != 0;
}
else
{
proceed = FALSE;
}
duk_pop (ctx);
return proceed;
}
static duk_ret_t test_basic(duk_context *ctx) {
duk_idx_t i, n;
void *ptr;
void *p1, *p2, *p3;
duk_int_t ret;
duk_push_undefined(ctx);
duk_push_null(ctx);
duk_push_boolean(ctx, 1);
duk_push_number(ctx, 123.0);
duk_push_string(ctx, "test string");
duk_eval_string(ctx, "({ foo: 'bar' })");
duk_eval_string(ctx, "Duktape.dec('hex', 'deadbeef');"); /* buffer */
/* Print pointer NULL/non-NULL */
n = duk_get_top(ctx);
for (i = 0; i < n + 1; i++) {
/* Note: access i == n on purpose (invalid index) */
ptr = duk_get_heapptr(ctx, i);
printf("top: %ld\n", (long) duk_get_top(ctx));
printf("idx %ld: type %ld, duk_get_heapptr() -> %s\n",
(long) i, (long) duk_get_type(ctx, i), (ptr ? "non-NULL" : "NULL"));
duk_push_uint(ctx, (duk_uint_t) i);
ret = duk_safe_call(ctx, raw_require_heapptr, 1 /*nargs*/, 1 /*nrets*/);
if (ret == DUK_EXEC_SUCCESS) {
;
} else {
printf("idx %ld: type %ld, duk_require_heapptr() -> %s\n",
(long) i, (long) duk_get_type(ctx, i), duk_safe_to_string(ctx, -1));
}
duk_pop(ctx);
}
/* Write the values to the global stash to simulate whatever
* reachability mechanisms user code uses.
*/
n = duk_get_top(ctx);
duk_push_global_stash(ctx);
for (i = 0; i < n; i++) {
duk_dup(ctx, i);
duk_put_prop_index(ctx, -2, (duk_uarridx_t) i);
}
/* Get borrowed references */
p1 = duk_get_heapptr(ctx, 4);
p2 = duk_get_heapptr(ctx, 5);
p3 = duk_get_heapptr(ctx, 6);
/* Erase value stack, simulating user code moving on and relying on
* stashed values keeping the target values reachable. Force a GC
* for good measure.
*/
duk_set_top(ctx, 0);
duk_gc(ctx, 0);
/* Push the values back one by one and test that they're intact. */
duk_eval_string(ctx, "(function (v) { print(Duktape.enc('jx', v)); })");
duk_dup_top(ctx);
duk_push_heapptr(ctx, p1);
duk_call(ctx, 1);
duk_pop(ctx);
duk_dup_top(ctx);
duk_push_heapptr(ctx, p2);
duk_call(ctx, 1);
duk_pop(ctx);
duk_dup_top(ctx);
duk_push_heapptr(ctx, p3);
duk_call(ctx, 1);
duk_pop(ctx);
duk_dup_top(ctx);
duk_push_heapptr(ctx, NULL);
duk_call(ctx, 1);
duk_pop(ctx);
duk_pop(ctx);
/* Done. */
printf("final top: %ld\n", (long) duk_get_top(ctx));
return 0;
}
static duk_ret_t test_func(duk_context *ctx, void *udata) {
(void) udata;
if (ctx) {
printf("dummy - return here\n"); fflush(stdout);
return 0;
}
/* Up-to-date for Duktape 1.3.0, alphabetical order:
* $ cd website/api; ls *.yaml
*/
(void) duk_alloc_raw(ctx, 0);
(void) duk_alloc(ctx, 0);
(void) duk_base64_decode(ctx, 0);
(void) duk_base64_encode(ctx, 0);
(void) duk_buffer_to_string(ctx, 0);
(void) duk_call_method(ctx, 0);
(void) duk_call_prop(ctx, 0, 0);
(void) duk_call(ctx, 0);
(void) duk_char_code_at(ctx, 0, 0);
(void) duk_check_stack_top(ctx, 0);
(void) duk_check_stack(ctx, 0);
(void) duk_check_type_mask(ctx, 0, 0);
(void) duk_check_type(ctx, 0, 0);
(void) duk_compact(ctx, 0);
(void) duk_compile_lstring_filename(ctx, 0, "dummy", 0);
(void) duk_compile_lstring(ctx, 0, "dummy", 0);
(void) duk_compile_string_filename(ctx, 0, "dummy");
(void) duk_compile_string(ctx, 0, "dummy");
(void) duk_compile(ctx, 0);
(void) duk_concat(ctx, 0);
(void) duk_config_buffer(ctx, 0, NULL, 0);
(void) duk_copy(ctx, 0, 0);
(void) duk_create_heap_default();
(void) duk_create_heap(NULL, NULL, NULL, NULL, NULL);
(void) duk_debugger_attach(ctx, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
(void) duk_debugger_cooperate(ctx);
(void) duk_debugger_detach(ctx);
(void) duk_debugger_notify(ctx, 0);
(void) duk_debugger_pause(ctx);
(void) duk_decode_string(ctx, 0, NULL, NULL);
(void) duk_def_prop(ctx, 0, 0);
(void) duk_del_prop_index(ctx, 0, 0);
(void) duk_del_prop_string(ctx, 0, "dummy");
(void) duk_del_prop(ctx, 0);
(void) duk_destroy_heap(ctx);
(void) duk_dump_function(ctx);
(void) duk_dup_top(ctx);
(void) duk_dup(ctx, 0);
(void) duk_enum(ctx, 0, 0);
(void) duk_equals(ctx, 0, 0);
duk_error_va(ctx, 0, NULL, NULL);
duk_error(ctx, 0, "dummy"); /* (void) cast won't work without variadic macros */
(void) duk_eval_lstring_noresult(ctx, "dummy", 0);
(void) duk_eval_lstring(ctx, "dummy", 0);
(void) duk_eval_noresult(ctx);
(void) duk_eval_string_noresult(ctx, "dummy");
(void) duk_eval_string(ctx, "dummy");
(void) duk_eval(ctx);
(void) duk_fatal(ctx, "dummy");
(void) duk_free_raw(ctx, NULL);
(void) duk_free(ctx, NULL);
(void) duk_gc(ctx, 0);
(void) duk_get_boolean(ctx, 0);
(void) duk_get_buffer_data(ctx, 0, NULL);
(void) duk_get_buffer(ctx, 0, NULL);
(void) duk_get_c_function(ctx, 0);
(void) duk_get_context(ctx, 0);
(void) duk_get_current_magic(ctx);
(void) duk_get_error_code(ctx, 0);
(void) duk_get_finalizer(ctx, 0);
(void) duk_get_global_string(ctx, 0);
(void) duk_get_heapptr(ctx, 0);
(void) duk_get_int(ctx, 0);
(void) duk_get_length(ctx, 0);
(void) duk_get_lstring(ctx, 0, NULL);
(void) duk_get_magic(ctx, 0);
(void) duk_get_memory_functions(ctx, NULL);
(void) duk_get_number(ctx, 0);
(void) duk_get_pointer(ctx, 0);
(void) duk_get_prop_index(ctx, 0, 0);
(void) duk_get_prop_string(ctx, 0, "dummy");
(void) duk_get_prop(ctx, 0);
(void) duk_get_prototype(ctx, 0);
(void) duk_get_string(ctx, 0);
(void) duk_get_top_index(ctx);
(void) duk_get_top(ctx);
(void) duk_get_type_mask(ctx, 0);
(void) duk_get_type(ctx, 0);
(void) duk_get_uint(ctx, 0);
(void) duk_has_prop_index(ctx, 0, 0);
(void) duk_has_prop_string(ctx, 0, "dummy");
(void) duk_has_prop(ctx, 0);
(void) duk_hex_decode(ctx, 0);
(void) duk_hex_encode(ctx, 0);
(void) duk_insert(ctx, 0);
(void) duk_instanceof(ctx, 0, 0);
(void) duk_is_array(ctx, 0);
(void) duk_is_boolean(ctx, 0);
(void) duk_is_bound_function(ctx, 0);
(void) duk_is_buffer(ctx, 0);
(void) duk_is_callable(ctx, 0);
(void) duk_is_c_function(ctx, 0);
(void) duk_is_constructor_call(ctx);
(void) duk_is_dynamic_buffer(ctx, 0);
(void) duk_is_ecmascript_function(ctx, 0);
(void) duk_is_error(ctx, 0);
(void) duk_is_eval_error(ctx, 0);
(void) duk_is_fixed_buffer(ctx, 0);
(void) duk_is_function(ctx, 0);
(void) duk_is_lightfunc(ctx, 0);
(void) duk_is_nan(ctx, 0);
(void) duk_is_null_or_undefined(ctx, 0);
(void) duk_is_null(ctx, 0);
(void) duk_is_number(ctx, 0);
(void) duk_is_object_coercible(ctx, 0);
(void) duk_is_object(ctx, 0);
(void) duk_is_pointer(ctx, 0);
(void) duk_is_primitive(ctx, 0);
(void) duk_is_range_error(ctx, 0);
(void) duk_is_reference_error(ctx, 0);
(void) duk_is_strict_call(ctx);
(void) duk_is_string(ctx, 0);
(void) duk_is_syntax_error(ctx, 0);
(void) duk_is_thread(ctx, 0);
(void) duk_is_type_error(ctx, 0);
(void) duk_is_undefined(ctx, 0);
(void) duk_is_uri_error(ctx, 0);
(void) duk_is_valid_index(ctx, 0);
(void) duk_join(ctx, 0);
(void) duk_json_decode(ctx, 0);
(void) duk_json_encode(ctx, 0);
(void) duk_load_function(ctx);
(void) duk_map_string(ctx, 0, NULL, NULL);
(void) duk_new(ctx, 0);
(void) duk_next(ctx, 0, 0);
(void) duk_normalize_index(ctx, 0);
(void) duk_pcall_method(ctx, 0);
(void) duk_pcall_prop(ctx, 0, 0);
(void) duk_pcall(ctx, 0);
(void) duk_pcompile_lstring_filename(ctx, 0, "dummy", 0);
(void) duk_pcompile_lstring(ctx, 0, "dummy", 0);
(void) duk_pcompile_string_filename(ctx, 0, "dummy");
(void) duk_pcompile_string(ctx, 0, "dummy");
(void) duk_pcompile(ctx, 0);
(void) duk_peval_lstring_noresult(ctx, "dummy", 0);
(void) duk_peval_lstring(ctx, "dummy", 0);
(void) duk_peval_noresult(ctx);
(void) duk_peval_string_noresult(ctx, "dummy");
(void) duk_peval_string(ctx, "dummy");
(void) duk_peval(ctx);
(void) duk_pnew(ctx, 0);
(void) duk_pop_2(ctx);
(void) duk_pop_3(ctx);
(void) duk_pop_n(ctx, 0);
(void) duk_pop(ctx);
(void) duk_push_array(ctx);
(void) duk_push_boolean(ctx, 0);
(void) duk_push_buffer_object(ctx, 0, 0, 0, 0);
(void) duk_push_buffer(ctx, 0, 0);
(void) duk_push_c_function(ctx, NULL, 0);
(void) duk_push_c_lightfunc(ctx, NULL, 0, 0, 0);
(void) duk_push_context_dump(ctx);
(void) duk_push_current_function(ctx);
(void) duk_push_current_thread(ctx);
(void) duk_push_dynamic_buffer(ctx, 0);
(void) duk_push_error_object_va(ctx, 0, NULL, NULL);
(void) duk_push_error_object(ctx, 0, "dummy");
(void) duk_push_external_buffer(ctx);
(void) duk_push_false(ctx);
(void) duk_push_fixed_buffer(ctx, 0);
(void) duk_push_global_object(ctx);
(void) duk_push_global_stash(ctx);
(void) duk_push_heap_stash(ctx);
(void) duk_push_heapptr(ctx, NULL);
(void) duk_push_int(ctx, 0);
(void) duk_push_lstring(ctx, "dummy", 0);
(void) duk_push_nan(ctx);
(void) duk_push_null(ctx);
(void) duk_push_number(ctx, 0.0);
(void) duk_push_object(ctx);
(void) duk_push_pointer(ctx, NULL);
(void) duk_push_sprintf(ctx, "dummy");
(void) duk_push_string(ctx, "dummy");
(void) duk_push_this(ctx);
(void) duk_push_thread_new_globalenv(ctx);
(void) duk_push_thread_stash(ctx, NULL);
(void) duk_push_thread(ctx);
(void) duk_push_true(ctx);
(void) duk_push_uint(ctx, 0);
(void) duk_push_undefined(ctx);
(void) duk_push_vsprintf(ctx, "dummy", NULL);
(void) duk_put_function_list(ctx, 0, NULL);
(void) duk_put_global_string(ctx, NULL);
(void) duk_put_number_list(ctx, 0, NULL);
(void) duk_put_prop_index(ctx, 0, 0);
(void) duk_put_prop_string(ctx, 0, "dummy");
(void) duk_put_prop(ctx, 0);
(void) duk_realloc_raw(ctx, NULL, 0);
(void) duk_realloc(ctx, NULL, 0);
(void) duk_remove(ctx, 0);
(void) duk_replace(ctx, 0);
(void) duk_require_boolean(ctx, 0);
(void) duk_require_buffer_data(ctx, 0, NULL);
(void) duk_require_buffer(ctx, 0, NULL);
(void) duk_require_c_function(ctx, 0);
(void) duk_require_callable(ctx, 0);
(void) duk_require_context(ctx, 0);
(void) duk_require_function(ctx, 0);
(void) duk_require_heapptr(ctx, 0);
(void) duk_require_int(ctx, 0);
(void) duk_require_lstring(ctx, 0, NULL);
(void) duk_require_normalize_index(ctx, 0);
(void) duk_require_null(ctx, 0);
(void) duk_require_number(ctx, 0);
(void) duk_require_object_coercible(ctx, 0);
(void) duk_require_pointer(ctx, 0);
(void) duk_require_stack_top(ctx, 0);
(void) duk_require_stack(ctx, 0);
(void) duk_require_string(ctx, 0);
(void) duk_require_top_index(ctx);
(void) duk_require_type_mask(ctx, 0, 0);
(void) duk_require_uint(ctx, 0);
(void) duk_require_undefined(ctx, 0);
(void) duk_require_valid_index(ctx, 0);
(void) duk_resize_buffer(ctx, 0, 0);
(void) duk_safe_call(ctx, NULL, NULL, 0, 0);
(void) duk_safe_to_lstring(ctx, 0, NULL);
(void) duk_safe_to_string(ctx, 0);
(void) duk_set_finalizer(ctx, 0);
(void) duk_set_global_object(ctx);
(void) duk_set_magic(ctx, 0, 0);
(void) duk_set_prototype(ctx, 0);
(void) duk_set_top(ctx, 0);
(void) duk_steal_buffer(ctx, 0, NULL);
(void) duk_strict_equals(ctx, 0, 0);
(void) duk_substring(ctx, 0, 0, 0);
(void) duk_swap_top(ctx, 0);
(void) duk_swap(ctx, 0, 0);
(void) duk_throw(ctx);
(void) duk_to_boolean(ctx, 0);
(void) duk_to_buffer(ctx, 0, NULL);
(void) duk_to_defaultvalue(ctx, 0, 0);
(void) duk_to_dynamic_buffer(ctx, 0, NULL);
(void) duk_to_fixed_buffer(ctx, 0, NULL);
(void) duk_to_int32(ctx, 0);
(void) duk_to_int(ctx, 0);
(void) duk_to_lstring(ctx, 0, NULL);
(void) duk_to_null(ctx, 0);
(void) duk_to_number(ctx, 0);
(void) duk_to_object(ctx, 0);
(void) duk_to_pointer(ctx, 0);
(void) duk_to_primitive(ctx, 0, 0);
(void) duk_to_string(ctx, 0);
(void) duk_to_uint16(ctx, 0);
(void) duk_to_uint32(ctx, 0);
(void) duk_to_uint(ctx, 0);
(void) duk_to_undefined(ctx, 0);
(void) duk_trim(ctx, 0);
(void) duk_xcopy_top(ctx, NULL, 0);
(void) duk_xmove_top(ctx, NULL, 0);
printf("never here\n"); fflush(stdout);
return 0;
}
void
_gum_duk_args_parse (const GumDukArgs * args,
const gchar * format,
...)
{
duk_context * ctx = args->ctx;
GumDukCore * core = args->core;
va_list ap;
duk_idx_t arg_index;
const gchar * t;
gboolean is_required;
GSList * byte_arrays = NULL;
const gchar * error_message = NULL;
va_start (ap, format);
arg_index = 0;
is_required = TRUE;
for (t = format; *t != '\0'; t++)
{
if (*t == '|')
{
is_required = FALSE;
continue;
}
if (arg_index >= duk_get_top (ctx) || duk_is_undefined (ctx, arg_index))
{
if (is_required)
goto missing_argument;
else
break;
}
switch (*t)
{
case 'i':
{
if (!duk_is_number (ctx, arg_index))
goto expected_int;
*va_arg (ap, gint *) = duk_require_int (ctx, arg_index);
break;
}
case 'u':
{
guint u;
if (!_gum_duk_get_uint (ctx, arg_index, &u))
goto expected_uint;
*va_arg (ap, guint *) = (guint) u;
break;
}
case 'q':
{
gint64 i;
gboolean is_fuzzy;
is_fuzzy = t[1] == '~';
if (is_fuzzy)
t++;
if (is_fuzzy)
{
if (!_gum_duk_parse_int64 (ctx, arg_index, core, &i))
goto expected_int;
}
else
{
if (!_gum_duk_get_int64 (ctx, arg_index, core, &i))
goto expected_int;
}
*va_arg (ap, gint64 *) = i;
break;
}
case 'Q':
{
guint64 u;
gboolean is_fuzzy;
is_fuzzy = t[1] == '~';
if (is_fuzzy)
t++;
if (is_fuzzy)
{
if (!_gum_duk_parse_uint64 (ctx, arg_index, core, &u))
goto expected_uint;
}
else
{
if (!_gum_duk_get_uint64 (ctx, arg_index, core, &u))
goto expected_uint;
}
*va_arg (ap, guint64 *) = u;
break;
}
case 'z':
{
gssize value;
if (duk_is_number (ctx, arg_index))
{
value = (gssize) duk_require_int (ctx, arg_index);
}
else
{
duk_push_heapptr (ctx, core->int64);
duk_push_heapptr (ctx, core->uint64);
if (duk_instanceof (ctx, arg_index, -2))
{
GumDukInt64 * object;
object = _gum_duk_require_data (ctx, arg_index);
value = (gssize) object->value;
}
else if (duk_instanceof (ctx, arg_index, -1))
{
GumDukUInt64 * object;
object = _gum_duk_require_data (ctx, arg_index);
value = (gssize) object->value;
}
else
{
goto expected_int;
}
duk_pop_2 (ctx);
}
*va_arg (ap, gssize *) = value;
break;
}
case 'Z':
{
gsize value;
if (duk_is_number (ctx, arg_index))
{
duk_double_t number;
number = duk_require_number (ctx, arg_index);
if (number < 0)
goto expected_uint;
value = (gsize) number;
}
else
{
duk_push_heapptr (ctx, core->int64);
duk_push_heapptr (ctx, core->uint64);
if (duk_instanceof (ctx, arg_index, -1))
{
GumDukUInt64 * object;
object = _gum_duk_require_data (ctx, arg_index);
value = (gsize) object->value;
}
else if (duk_instanceof (ctx, arg_index, -2))
{
GumDukInt64 * object;
object = _gum_duk_require_data (ctx, arg_index);
if (object->value < 0)
goto expected_uint;
value = (gsize) object->value;
}
else
{
goto expected_uint;
}
duk_pop_2 (ctx);
}
*va_arg (ap, gsize *) = value;
break;
}
case 'n':
{
if (!duk_is_number (ctx, arg_index))
goto expected_number;
*va_arg (ap, gdouble *) = duk_require_number (ctx, arg_index);
break;
}
case 'p':
{
gpointer ptr;
gboolean is_fuzzy;
is_fuzzy = t[1] == '~';
if (is_fuzzy)
t++;
if (is_fuzzy)
{
if (!_gum_duk_parse_pointer (ctx, arg_index, core, &ptr))
goto expected_pointer;
}
else
{
if (!_gum_duk_get_pointer (ctx, arg_index, core, &ptr))
goto expected_pointer;
}
*va_arg (ap, gpointer *) = ptr;
break;
}
case 's':
{
const gchar * str;
gboolean is_nullable;
is_nullable = t[1] == '?';
if (is_nullable)
t++;
if (is_nullable && duk_is_null (ctx, arg_index))
str = NULL;
else if ((str = duk_get_string (ctx, arg_index)) == NULL)
goto expected_string;
*va_arg (ap, const gchar **) = str;
break;
}
case 'm':
{
GumPageProtection prot;
if (!_gum_duk_parse_protection (ctx, arg_index, &prot))
goto expected_protection;
*va_arg (ap, GumPageProtection *) = prot;
break;
}
case 'V':
{
GumDukHeapPtr value;
value = duk_get_heapptr (ctx, arg_index);
if (value == NULL)
goto expected_heap_pointer;
*va_arg (ap, GumDukHeapPtr *) = value;
break;
}
case 'O':
{
if (!duk_is_object (ctx, arg_index))
goto expected_object;
*va_arg (ap, GumDukHeapPtr *) = duk_require_heapptr (ctx, arg_index);
break;
}
case 'A':
{
GumDukHeapPtr array;
gboolean is_nullable;
is_nullable = t[1] == '?';
if (is_nullable)
t++;
if (duk_is_array (ctx, arg_index))
array = duk_require_heapptr (ctx, arg_index);
else if (is_nullable && duk_is_null (ctx, arg_index))
array = NULL;
else
goto expected_array;
*va_arg (ap, GumDukHeapPtr *) = array;
break;
}
case 'F':
{
GumDukHeapPtr func;
gboolean is_expecting_object, is_nullable;
is_expecting_object = t[1] == '{';
if (is_expecting_object)
t += 2;
if (is_expecting_object)
{
const gchar * next, * end, * t_end;
if (!duk_is_object (ctx, arg_index))
goto expected_callback_object;
do
{
gchar name[64];
gsize length;
next = strchr (t, ',');
end = strchr (t, '}');
t_end = (next != NULL && next < end) ? next : end;
length = t_end - t;
strncpy (name, t, length);
is_nullable = name[length - 1] == '?';
if (is_nullable)
name[length - 1] = '\0';
else
name[length] = '\0';
duk_get_prop_string (ctx, arg_index, name);
if (duk_is_function (ctx, -1))
{
func = duk_require_heapptr (ctx, -1);
}
else if (is_nullable && duk_is_null_or_undefined (ctx, -1))
{
func = NULL;
}
else
{
duk_pop (ctx);
goto expected_callback_value;
}
duk_pop (ctx);
*va_arg (ap, GumDukHeapPtr *) = func;
t = t_end + 1;
}
while (t_end != end);
t--;
}
else
{
is_nullable = t[1] == '?';
if (is_nullable)
t++;
if (duk_is_function (ctx, arg_index))
func = duk_require_heapptr (ctx, arg_index);
else if (is_nullable && duk_is_null (ctx, arg_index))
func = NULL;
else
goto expected_function;
*va_arg (ap, GumDukHeapPtr *) = func;
}
break;
}
case 'B':
{
GBytes * bytes;
gboolean is_nullable;
is_nullable = t[1] == '?';
if (is_nullable)
t++;
if (is_nullable && duk_is_null (ctx, arg_index))
bytes = NULL;
else if (!_gum_duk_parse_bytes (ctx, arg_index, &bytes))
goto expected_bytes;
*va_arg (ap, GBytes **) = bytes;
if (bytes != NULL)
byte_arrays = g_slist_prepend (byte_arrays, bytes);
break;
}
case 'C':
{
GumCpuContext * cpu_context;
gboolean is_nullable;
is_nullable = t[1] == '?';
if (is_nullable)
t++;
if (is_nullable && duk_is_null (ctx, arg_index))
cpu_context = NULL;
else if ((cpu_context = _gum_duk_get_cpu_context (ctx, arg_index,
core)) == NULL)
goto expected_cpu_context;
*va_arg (ap, GumCpuContext **) = cpu_context;
break;
}
default:
g_assert_not_reached ();
}
arg_index++;
}
va_end (ap);
g_slist_free (byte_arrays);
return;
missing_argument:
{
error_message = "missing argument";
goto error;
}
expected_int:
{
error_message = "expected an integer";
goto error;
}
expected_uint:
{
error_message = "expected an unsigned integer";
goto error;
}
expected_number:
{
error_message = "expected a number";
goto error;
}
expected_pointer:
{
error_message = "expected a pointer";
goto error;
}
expected_string:
{
error_message = "expected a string";
goto error;
}
expected_protection:
{
error_message = "expected a string specifying memory protection";
goto error;
}
expected_heap_pointer:
{
error_message = "expected a heap-allocated object";
goto error;
}
expected_object:
{
error_message = "expected an object";
goto error;
}
expected_array:
{
error_message = "expected an array";
goto error;
}
expected_callback_object:
{
error_message = "expected an object containing callbacks";
goto error;
}
expected_callback_value:
{
error_message = "expected a callback value";
goto error;
}
expected_function:
{
error_message = "expected a function";
goto error;
}
expected_bytes:
{
error_message = "expected a buffer-like object";
goto error;
}
expected_cpu_context:
{
error_message = "expected a CpuContext object";
goto error;
}
error:
{
va_end (ap);
g_slist_foreach (byte_arrays, (GFunc) g_bytes_unref, NULL);
g_slist_free (byte_arrays);
g_assert (error_message != NULL);
_gum_duk_throw (ctx, error_message);
}
}
