walk_state = acpi_ds_create_walk_state (owner_id, NULL, NULL, NULL);
if (!walk_state) {
- return_ACPI_STATUS (AE_NO_MEMORY);
+ status = AE_NO_MEMORY;
+ goto cleanup;
}
status = acpi_ds_init_aml_walk (walk_state, op, node,
obj_desc->method.aml_length, NULL, 1);
if (ACPI_FAILURE (status)) {
acpi_ds_delete_walk_state (walk_state);
- return_ACPI_STATUS (status);
+ goto cleanup;
}
/*
*/
status = acpi_ps_parse_aml (walk_state);
if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ goto cleanup;
}
ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
"**** [%4.4s] Parsed **** named_obj=%p Op=%p\n",
acpi_ut_get_node_name (obj_handle), obj_handle, op));
+cleanup:
acpi_ps_delete_parse_tree (op);
return_ACPI_STATUS (status);
}
walk_state = acpi_ds_create_walk_state (0, NULL, NULL, NULL);
if (!walk_state) {
- return_ACPI_STATUS (AE_NO_MEMORY);
+ status = AE_NO_MEMORY;
+ goto cleanup;
}
status = acpi_ds_init_aml_walk (walk_state, op, NULL, aml_start,
aml_length, NULL, 1);
if (ACPI_FAILURE (status)) {
acpi_ds_delete_walk_state (walk_state);
- return_ACPI_STATUS (status);
+ goto cleanup;
}
/* Mark this parse as a deferred opcode */
status = acpi_ps_parse_aml (walk_state);
if (ACPI_FAILURE (status)) {
- acpi_ps_delete_parse_tree (op);
- return_ACPI_STATUS (status);
+ goto cleanup;
}
/* Get and init the Op created above */
walk_state = acpi_ds_create_walk_state (0, NULL, NULL, NULL);
if (!walk_state) {
- return_ACPI_STATUS (AE_NO_MEMORY);
+ status = AE_NO_MEMORY;
+ goto cleanup;
}
/* Execute the opcode and arguments */
aml_length, NULL, 3);
if (ACPI_FAILURE (status)) {
acpi_ds_delete_walk_state (walk_state);
- return_ACPI_STATUS (status);
+ goto cleanup;
}
/* Mark this execution as a deferred opcode */
walk_state->deferred_node = node;
status = acpi_ps_parse_aml (walk_state);
+
+cleanup:
acpi_ps_delete_parse_tree (op);
return_ACPI_STATUS (status);
}
if (op) {
if (!(walk_state->op_info->flags & AML_NAMED)) {
-#if 0
- if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
- (walk_state->op_info->class == AML_CLASS_CONTROL)) {
- acpi_os_printf ("\n\n***EXECUTABLE OPCODE %s***\n\n",
- walk_state->op_info->name);
- *out_op = op;
- return (AE_CTRL_SKIP);
- }
-#endif
*out_op = op;
return (AE_OK);
}
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, walk_state));
if (op) {
+ if ((walk_state->control_state) &&
+ (walk_state->control_state->common.state ==
+ ACPI_CONTROL_CONDITIONAL_EXECUTING)) {
+ /* We are executing a while loop outside of a method */
+
+ status = acpi_ds_exec_begin_op (walk_state, out_op);
+ return_ACPI_STATUS (status);
+ }
+
/* We only care about Namespace opcodes here */
if ((!(walk_state->op_info->flags & AML_NSOPCODE) &&
(!(walk_state->op_info->flags & AML_NAMED))) {
if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
(walk_state->op_info->class == AML_CLASS_CONTROL)) {
- ACPI_REPORT_WARNING ((
- "Encountered executable code at module level, [%s]\n",
- acpi_ps_get_opcode_name (walk_state->opcode)));
+ ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+ "Begin/EXEC: %s (fl %8.8X)\n", walk_state->op_info->name,
+ walk_state->op_info->flags));
+
+ /* Executing a type1 or type2 opcode outside of a method */
+
+ status = acpi_ds_exec_begin_op (walk_state, out_op);
+ return_ACPI_STATUS (status);
}
return_ACPI_STATUS (AE_OK);
}
break;
}
+ /* Add new entry into namespace */
+
status = acpi_ns_lookup (walk_state->scope_info, buffer_ptr, object_type,
- ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH,
+ ACPI_IMODE_LOAD_PASS2, ACPI_NS_NO_UPSEARCH,
walk_state, &(node));
break;
}
return_ACPI_STATUS (status);
}
-
if (!op) {
/* Create a new op */
if (node) {
op->named.name = node->name.integer;
}
- if (out_op) {
- *out_op = op;
- }
+ *out_op = op;
}
/*
ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n",
walk_state->op_info->name, op, walk_state));
- /* Only interested in opcodes that have namespace objects */
+ /* Check if opcode had an associated namespace object */
if (!(walk_state->op_info->flags & AML_NSOBJECT)) {
+#ifndef ACPI_NO_METHOD_EXECUTION
+ /* No namespace object. Executable opcode? */
+
+ if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
+ (walk_state->op_info->class == AML_CLASS_CONTROL)) {
+ ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+ "End/EXEC: %s (fl %8.8X)\n", walk_state->op_info->name,
+ walk_state->op_info->flags));
+
+ /* Executing a type1 or type2 opcode outside of a method */
+
+ status = acpi_ds_exec_end_op (walk_state);
+ return_ACPI_STATUS (status);
+ }
+#endif
return_ACPI_STATUS (AE_OK);
}
"Ending scope Op=%p State=%p\n", op, walk_state));
}
-
object_type = walk_state->op_info->object_type;
/*
/* The next_op of the next_walk will be the beginning of the method */
walk_state->next_op = NULL;
+ walk_state->pass_number = (u8) pass_number;
if (info) {
if (info->parameter_type == ACPI_PARAM_GPE) {
*/
status = acpi_ex_read_data_from_field (walk_state, obj_desc, &buffer_desc);
if (ACPI_FAILURE (status)) {
- goto cleanup;
+ return_ACPI_STATUS (status);
}
table_ptr = ACPI_CAST_PTR (struct acpi_table_header,
buffer_desc->buffer.pointer);
- /* Sanity check the table length */
+ /* All done with the buffer_desc, delete it */
+
+ buffer_desc->buffer.pointer = NULL;
+ acpi_ut_remove_reference (buffer_desc);
+
+ /* Sanity check the table length */
if (table_ptr->length < sizeof (struct acpi_table_header)) {
- return_ACPI_STATUS (AE_BAD_HEADER);
+ status = AE_BAD_HEADER;
+ goto cleanup;
}
break;
status = acpi_ex_add_table (table_ptr, acpi_gbl_root_node, &ddb_handle);
if (ACPI_FAILURE (status)) {
- goto cleanup;
+ /* On error, table_ptr was deallocated above */
+
+ return_ACPI_STATUS (status);
}
/* Store the ddb_handle into the Target operand */
status = acpi_ex_store (ddb_handle, target, walk_state);
if (ACPI_FAILURE (status)) {
(void) acpi_ex_unload_table (ddb_handle);
- }
- return_ACPI_STATUS (status);
+ /* table_ptr was deallocated above */
+ return_ACPI_STATUS (status);
+ }
cleanup:
-
- if (buffer_desc) {
- acpi_ut_remove_reference (buffer_desc);
- }
- else {
+ if (ACPI_FAILURE (status)) {
ACPI_MEM_FREE (table_ptr);
}
return_ACPI_STATUS (status);
if (!obj_desc) {
return_ACPI_STATUS (AE_AML_NO_OPERAND);
}
+ if (!ret_buffer_desc) {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
if (ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_BUFFER_FIELD) {
/*
if (ACPI_FAILURE (status)) {
acpi_ut_remove_reference (buffer_desc);
}
- else if (ret_buffer_desc) {
+ else {
*ret_buffer_desc = buffer_desc;
}
status = AE_AML_BAD_NAME;
}
+ if (ACPI_FAILURE (status)) {
+ if (name_string) {
+ ACPI_MEM_FREE (name_string);
+ }
+ return_ACPI_STATUS (status);
+ }
+
*out_name_string = name_string;
*out_name_length = (u32) (aml_address - in_aml_address);
cleanup:
- if (!walk_state->result_obj) {
- walk_state->result_obj = return_desc;
- }
-
/* Delete return object on error */
- if (ACPI_FAILURE (status)) {
+ if ((ACPI_FAILURE (status)) || walk_state->result_obj) {
acpi_ut_remove_reference (return_desc);
}
+ else {
+ /* Save the return value */
+
+ walk_state->result_obj = return_desc;
+ }
return_ACPI_STATUS (status);
}
* to service the entire parse. The second pass of the parse then
* performs another complete parse of the AML..
*/
+ ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Start pass 1\n"));
status = acpi_ns_one_complete_parse (1, table_desc);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
* overhead of this is compensated for by the fact that the
* parse objects are all cached.
*/
+ ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Start pass 2\n"));
status = acpi_ns_one_complete_parse (2, table_desc);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
/* Local prototypes */
-static void
+static acpi_status
acpi_ps_complete_this_op (
struct acpi_walk_state *walk_state,
union acpi_parse_object *op);
* PARAMETERS: walk_state - Current State
* Op - Op to complete
*
- * RETURN: None.
+ * RETURN: Status
*
* DESCRIPTION: Perform any cleanup at the completion of an Op.
*
******************************************************************************/
-static void
+static acpi_status
acpi_ps_complete_this_op (
struct acpi_walk_state *walk_state,
union acpi_parse_object *op)
/* Check for null Op, can happen if AML code is corrupt */
if (!op) {
- return_VOID;
+ return_ACPI_STATUS (AE_OK); /* OK for now */
}
/* Delete this op and the subtree below it if asked to */
if (((walk_state->parse_flags & ACPI_PARSE_TREE_MASK) != ACPI_PARSE_DELETE_TREE) ||
(walk_state->op_info->class == AML_CLASS_ARGUMENT)) {
- return_VOID;
+ return_ACPI_STATUS (AE_OK);
}
/* Make sure that we only delete this subtree */
if (op->common.parent) {
+ prev = op->common.parent->common.value.arg;
+ if (!prev) {
+ /* Nothing more to do */
+
+ goto cleanup;
+ }
+
/*
* Check if we need to replace the operator and its subtree
* with a return value op (placeholder op)
*/
replacement_op = acpi_ps_alloc_op (AML_INT_RETURN_VALUE_OP);
if (!replacement_op) {
- goto cleanup;
+ goto allocate_error;
}
break;
(op->common.parent->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
replacement_op = acpi_ps_alloc_op (AML_INT_RETURN_VALUE_OP);
if (!replacement_op) {
- goto cleanup;
+ goto allocate_error;
}
}
-
- if ((op->common.parent->common.aml_opcode == AML_NAME_OP) &&
- (walk_state->descending_callback != acpi_ds_exec_begin_op)) {
+ else if ((op->common.parent->common.aml_opcode == AML_NAME_OP) &&
+ (walk_state->pass_number <= ACPI_IMODE_LOAD_PASS2)) {
if ((op->common.aml_opcode == AML_BUFFER_OP) ||
(op->common.aml_opcode == AML_PACKAGE_OP) ||
(op->common.aml_opcode == AML_VAR_PACKAGE_OP)) {
replacement_op = acpi_ps_alloc_op (op->common.aml_opcode);
if (!replacement_op) {
- goto cleanup;
+ goto allocate_error;
}
replacement_op->named.data = op->named.data;
break;
default:
+
replacement_op = acpi_ps_alloc_op (AML_INT_RETURN_VALUE_OP);
if (!replacement_op) {
- goto cleanup;
+ goto allocate_error;
}
}
/* We must unlink this op from the parent tree */
- prev = op->common.parent->common.value.arg;
if (prev == op) {
/* This op is the first in the list */
/* Now we can actually delete the subtree rooted at Op */
acpi_ps_delete_parse_tree (op);
- return_VOID;
+ return_ACPI_STATUS (AE_OK);
+
+
+allocate_error:
+
+ /* Always delete the subtree, even on error */
+
+ acpi_ps_delete_parse_tree (op);
+ return_ACPI_STATUS (AE_NO_MEMORY);
}
struct acpi_walk_state *walk_state)
{
acpi_status status = AE_OK;
+ acpi_status status2;
union acpi_parse_object *op = NULL; /* current op */
union acpi_parse_object *arg = NULL;
union acpi_parse_object *pre_op = NULL;
break;
default:
-
/*
* Op is not a constant or string, append each argument
* to the Op
/* Special processing for certain opcodes */
+ if (walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) {
+ switch (op->common.aml_opcode) {
+ case AML_IF_OP:
+ case AML_ELSE_OP:
+ case AML_WHILE_OP:
+
+ /* Skip body of if/else/while in pass 1 */
+
+ parser_state->aml = parser_state->pkg_end;
+ walk_state->arg_count = 0;
+ break;
+
+ default:
+ break;
+ }
+ }
+
switch (op->common.aml_opcode) {
case AML_METHOD_OP:
if ((op->common.parent) &&
(op->common.parent->common.aml_opcode == AML_NAME_OP) &&
- (walk_state->descending_callback != acpi_ds_exec_begin_op)) {
+ (walk_state->pass_number <= ACPI_IMODE_LOAD_PASS2)) {
/*
* Skip parsing of Buffers and Packages
* because we don't have enough info in the first pass
*/
parser_state->scope->parse_scope.arg_count--;
- /* Close this Op (will result in parse subtree deletion) */
+ /* Finished with pre_op */
- acpi_ps_complete_this_op (walk_state, op);
- op = NULL;
if (pre_op) {
acpi_ps_free_op (pre_op);
pre_op = NULL;
}
+ /* Close this Op (will result in parse subtree deletion) */
+
+ status2 = acpi_ps_complete_this_op (walk_state, op);
+ if (ACPI_FAILURE (status2)) {
+ return_ACPI_STATUS (status2);
+ }
+ op = NULL;
+
switch (status) {
case AE_OK:
break;
status = walk_state->ascending_callback (walk_state);
status = acpi_ps_next_parse_state (walk_state, op, status);
- acpi_ps_complete_this_op (walk_state, op);
+ status2 = acpi_ps_complete_this_op (walk_state, op);
+ if (ACPI_FAILURE (status2)) {
+ return_ACPI_STATUS (status2);
+ }
op = NULL;
}
status = AE_OK;
status = walk_state->ascending_callback (walk_state);
status = acpi_ps_next_parse_state (walk_state, op, status);
- acpi_ps_complete_this_op (walk_state, op);
+ status2 = acpi_ps_complete_this_op (walk_state, op);
+ if (ACPI_FAILURE (status2)) {
+ return_ACPI_STATUS (status2);
+ }
op = NULL;
status = AE_OK;
/* Clean up */
do {
if (op) {
- acpi_ps_complete_this_op (walk_state, op);
+ status2 = acpi_ps_complete_this_op (walk_state, op);
+ if (ACPI_FAILURE (status2)) {
+ return_ACPI_STATUS (status2);
+ }
}
acpi_ps_pop_scope (parser_state, &op,
&walk_state->arg_types, &walk_state->arg_count);
do {
if (op) {
- acpi_ps_complete_this_op (walk_state, op);
+ status2 = acpi_ps_complete_this_op (walk_state, op);
+ if (ACPI_FAILURE (status2)) {
+ return_ACPI_STATUS (status2);
+ }
}
acpi_ps_pop_scope (parser_state, &op,
&walk_state->arg_types, &walk_state->arg_count);
/* Clean up */
do {
if (op) {
- acpi_ps_complete_this_op (walk_state, op);
+ status2 = acpi_ps_complete_this_op (walk_state, op);
+ if (ACPI_FAILURE (status2)) {
+ return_ACPI_STATUS (status2);
+ }
}
acpi_ps_pop_scope (parser_state, &op,
}
else if (ACPI_FAILURE (status)) {
- acpi_ps_complete_this_op (walk_state, op);
+ /* First error is most important */
+
+ (void) acpi_ps_complete_this_op (walk_state, op);
return_ACPI_STATUS (status);
}
}
- acpi_ps_complete_this_op (walk_state, op);
+ status2 = acpi_ps_complete_this_op (walk_state, op);
+ if (ACPI_FAILURE (status2)) {
+ return_ACPI_STATUS (status2);
+ }
}
acpi_ps_pop_scope (parser_state, &op, &walk_state->arg_types,
cleanup:
- acpi_os_unmap_memory (rsdt_info->pointer,
- (acpi_size) rsdt_info->pointer->length);
+ if (rsdt_info->pointer) {
+ acpi_os_unmap_memory (rsdt_info->pointer,
+ (acpi_size) rsdt_info->pointer->length);
+ }
ACPI_MEM_FREE (rsdt_info);
if (header) {
acpi_mutex_handle mutex_id)
{
acpi_status status;
- u32 i;
u32 this_thread_id;
return (AE_NOT_ACQUIRED);
}
- /*
- * Deadlock prevention. Check if this thread owns any mutexes of value
- * greater than this one. If so, the thread has violated the mutex
- * ordering rule. This indicates a coding error somewhere in
- * the ACPI subsystem code.
- */
- for (i = mutex_id; i < MAX_MUTEX; i++) {
- if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) {
- if (i == mutex_id) {
- continue;
- }
+#ifdef ACPI_MUTEX_DEBUG
+ {
+ u32 i;
+ /*
+ * Mutex debug code, for internal debugging only.
+ *
+ * Deadlock prevention. Check if this thread owns any mutexes of value
+ * greater than this one. If so, the thread has violated the mutex
+ * ordering rule. This indicates a coding error somewhere in
+ * the ACPI subsystem code.
+ */
+ for (i = mutex_id; i < MAX_MUTEX; i++) {
+ if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) {
+ if (i == mutex_id) {
+ continue;
+ }
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Invalid release order: owns [%s], releasing [%s]\n",
- acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id)));
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Invalid release order: owns [%s], releasing [%s]\n",
+ acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id)));
- return (AE_RELEASE_DEADLOCK);
+ return (AE_RELEASE_DEADLOCK);
+ }
}
}
+#endif
/* Mark unlocked FIRST */
/* Version string */
-#define ACPI_CA_VERSION 0x20050513
+#define ACPI_CA_VERSION 0x20050526
/*
* OS name, used for the _OS object. The _OS object is essentially obsolete,
u8 return_used;
u16 opcode; /* Current AML opcode */
u8 scope_depth;
- u8 reserved1;
+ u8 pass_number; /* Parse pass during table load */
u32 arg_count; /* push for fixed or var args */
u32 aml_offset;
u32 arg_types;
projects / linux-2.6 / commitdiff