ACPICA 20050408 from Bob Moore

Fixed three cases in the interpreter where an "index"
argument to an ASL function was still (internally) 32
bits instead of the required 64 bits.  This was the Index
argument to the Index, Mid, and Match operators.

The "strupr" function is now permanently local
(acpi_ut_strupr), since this is not a POSIX-defined
function and not present in most kernel-level C
libraries. References to the C library strupr function
have been removed from the headers.

Completed the deployment of static
functions/prototypes. All prototypes with the static
attribute have been moved from the headers to the owning
C file.

ACPICA 20050329 from Bob Moore

An error is now generated if an attempt is made to create
a Buffer Field of length zero (A CreateField with a length
operand of zero.)

The interpreter now issues a warning whenever executable
code at the module level is detected during ACPI table
load. This will give some idea of the prevalence of this
type of code.

Implemented support for references to named objects (other
than control methods) within package objects.

Enhanced package object output for the debug
object. Package objects are now completely dumped, showing
all elements.

Enhanced miscellaneous object output for the debug
object. Any object can now be written to the debug object
(for example, a device object can be written, and the type
of the object will be displayed.)

The "static" qualifier has been added to all local
functions across the core subsystem.

The number of "long" lines (> 80 chars) within the source
has been significantly reduced, by about 1/3.

Cleaned up all header files to ensure that all CA/iASL
functions are prototyped (even static functions) and the
formatting is consistent.

Two new header files have been added, acopcode.h and
acnames.h.

Removed several obsolete functions that were no longer
used.

Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 41 insertions, 22 deletions

diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c
index 7be604911156..3de45672379a 100644
--- a/drivers/acpi/executer/exresolv.c
+++ b/drivers/acpi/executer/exresolv.c
@@ -54,6 +54,13 @@
 #define _COMPONENT          ACPI_EXECUTER
 	 ACPI_MODULE_NAME    ("exresolv")
 
+/* Local prototypes */
+
+static acpi_status
+acpi_ex_resolve_object_to_value (
+	union acpi_operand_object       **stack_ptr,
+	struct acpi_walk_state          *walk_state);
+
 
 /*******************************************************************************
  *
@@ -96,6 +103,11 @@ acpi_ex_resolve_to_value (
 		if (ACPI_FAILURE (status)) {
 			return_ACPI_STATUS (status);
 		}
+
+		if (!*stack_ptr) {
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - null pointer\n"));
+			return_ACPI_STATUS (AE_AML_NO_OPERAND);
+		}
 	}
 
 	/*
@@ -120,18 +132,17 @@ acpi_ex_resolve_to_value (
  *
  * FUNCTION:    acpi_ex_resolve_object_to_value
  *
- * PARAMETERS:  stack_ptr       - Pointer to a stack location that contains a
- *                                ptr to an internal object.
+ * PARAMETERS:  stack_ptr       - Pointer to an internal object
  *              walk_state      - Current method state
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Retrieve the value from an internal object.  The Reference type
+ * DESCRIPTION: Retrieve the value from an internal object. The Reference type
  *              uses the associated AML opcode to determine the value.
  *
  ******************************************************************************/
 
-acpi_status
+static acpi_status
 acpi_ex_resolve_object_to_value (
 	union acpi_operand_object       **stack_ptr,
 	struct acpi_walk_state          *walk_state)
@@ -159,7 +170,7 @@ acpi_ex_resolve_object_to_value (
 		case AML_NAME_OP:
 
 			/*
-			 * Convert indirect name ptr to a direct name ptr.
+			 * Convert name reference to a namespace node
 			 * Then, acpi_ex_resolve_node_to_value can be used to get the value
 			 */
 			temp_node = stack_desc->reference.object;
@@ -168,7 +179,7 @@ acpi_ex_resolve_object_to_value (
 
 			acpi_ut_remove_reference (stack_desc);
 
-			/* Put direct name pointer onto stack and exit */
+			/* Return the namespace node */
 
 			(*stack_ptr) = temp_node;
 			break;
@@ -255,10 +266,19 @@ acpi_ex_resolve_object_to_value (
 
 			break;
 
+		case AML_INT_NAMEPATH_OP:   /* Reference to a named object */
+
+			/* Get the object pointed to by the namespace node */
+
+			*stack_ptr = (stack_desc->reference.node)->object;
+			acpi_ut_add_reference (*stack_ptr);
+			acpi_ut_remove_reference (stack_desc);
+			break;
 
 		default:
 
-			ACPI_REPORT_ERROR (("During resolve, Unknown Reference opcode %X (%s) in %p\n",
+			ACPI_REPORT_ERROR ((
+				"During resolve, Unknown Reference opcode %X (%s) in %p\n",
 				opcode, acpi_ps_get_opcode_name (opcode), stack_desc));
 			status = AE_AML_INTERNAL;
 			break;
@@ -278,9 +298,8 @@ acpi_ex_resolve_object_to_value (
 		break;
 
 
-	/*
-	 * These cases may never happen here, but just in case..
-	 */
+	/* These cases may never happen here, but just in case.. */
+
 	case ACPI_TYPE_BUFFER_FIELD:
 	case ACPI_TYPE_LOCAL_REGION_FIELD:
 	case ACPI_TYPE_LOCAL_BANK_FIELD:
@@ -333,9 +352,8 @@ acpi_ex_resolve_multiple (
 	ACPI_FUNCTION_TRACE ("acpi_ex_resolve_multiple");
 
 
-	/*
-	 * Operand can be either a namespace node or an operand descriptor
-	 */
+	/* Operand can be either a namespace node or an operand descriptor */
+
 	switch (ACPI_GET_DESCRIPTOR_TYPE (obj_desc)) {
 	case ACPI_DESC_TYPE_OPERAND:
 		type = obj_desc->common.type;
@@ -357,10 +375,8 @@ acpi_ex_resolve_multiple (
 		return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
 	}
 
+	/* If type is anything other than a reference, we are done */
 
-	/*
-	 * If type is anything other than a reference, we are done
-	 */
 	if (type != ACPI_TYPE_LOCAL_REFERENCE) {
 		goto exit;
 	}
@@ -382,8 +398,9 @@ acpi_ex_resolve_multiple (
 			/* All "References" point to a NS node */
 
 			if (ACPI_GET_DESCRIPTOR_TYPE (node) != ACPI_DESC_TYPE_NAMED) {
-				ACPI_REPORT_ERROR (("acpi_ex_resolve_multiple: Not a NS node %p [%s]\n",
-						node, acpi_ut_get_descriptor_name (node)));
+				ACPI_REPORT_ERROR ((
+					"acpi_ex_resolve_multiple: Not a NS node %p [%s]\n",
+					node, acpi_ut_get_descriptor_name (node)));
 				return_ACPI_STATUS (AE_AML_INTERNAL);
 			}
 
@@ -440,8 +457,9 @@ acpi_ex_resolve_multiple (
 			/* All "References" point to a NS node */
 
 			if (ACPI_GET_DESCRIPTOR_TYPE (node) != ACPI_DESC_TYPE_NAMED) {
-				ACPI_REPORT_ERROR (("acpi_ex_resolve_multiple: Not a NS node %p [%s]\n",
-						node, acpi_ut_get_descriptor_name (node)));
+				ACPI_REPORT_ERROR ((
+					"acpi_ex_resolve_multiple: Not a NS node %p [%s]\n",
+					node, acpi_ut_get_descriptor_name (node)));
 			   return_ACPI_STATUS (AE_AML_INTERNAL);
 			}
 
@@ -468,7 +486,7 @@ acpi_ex_resolve_multiple (
 
 			if (return_desc) {
 				status = acpi_ds_method_data_get_value (obj_desc->reference.opcode,
-						  obj_desc->reference.offset, walk_state, &obj_desc);
+						 obj_desc->reference.offset, walk_state, &obj_desc);
 				if (ACPI_FAILURE (status)) {
 					return_ACPI_STATUS (status);
 				}
@@ -500,7 +518,8 @@ acpi_ex_resolve_multiple (
 
 		default:
 
-			ACPI_REPORT_ERROR (("acpi_ex_resolve_multiple: Unknown Reference subtype %X\n",
+			ACPI_REPORT_ERROR ((
+				"acpi_ex_resolve_multiple: Unknown Reference subtype %X\n",
 				obj_desc->reference.opcode));
 			return_ACPI_STATUS (AE_AML_INTERNAL);
 		}