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189c7213f4
ACPICA commit f530f1acb3128136ad97c715fdaebbbeff283ee2
Pointer obj_desc is being initialized with a value that is never
read and it is being updated later with a new value. The initialization
is redundant and can be removed.
Addresses-Coverity: ("Unused value")
Link: https://github.com/acpica/acpica/commit/f530f1ac
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
518 lines
12 KiB
C
518 lines
12 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
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/*******************************************************************************
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*
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* Module Name: dbobject - ACPI object decode and display
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*
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******************************************************************************/
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#include <acpi/acpi.h>
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#include "accommon.h"
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#include "acnamesp.h"
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#include "acdebug.h"
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#define _COMPONENT ACPI_CA_DEBUGGER
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ACPI_MODULE_NAME("dbobject")
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/* Local prototypes */
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static void acpi_db_decode_node(struct acpi_namespace_node *node);
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/*******************************************************************************
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*
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* FUNCTION: acpi_db_dump_method_info
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*
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* PARAMETERS: status - Method execution status
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* walk_state - Current state of the parse tree walk
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*
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* RETURN: None
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*
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* DESCRIPTION: Called when a method has been aborted because of an error.
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* Dumps the method execution stack, and the method locals/args,
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* and disassembles the AML opcode that failed.
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*
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******************************************************************************/
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void
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acpi_db_dump_method_info(acpi_status status, struct acpi_walk_state *walk_state)
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{
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struct acpi_thread_state *thread;
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struct acpi_namespace_node *node;
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node = walk_state->method_node;
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/* There are no locals or arguments for the module-level code case */
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if (node == acpi_gbl_root_node) {
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return;
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}
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/* Ignore control codes, they are not errors */
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if ((status & AE_CODE_MASK) == AE_CODE_CONTROL) {
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return;
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}
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/* We may be executing a deferred opcode */
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if (walk_state->deferred_node) {
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acpi_os_printf("Executing subtree for Buffer/Package/Region\n");
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return;
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}
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/*
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* If there is no Thread, we are not actually executing a method.
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* This can happen when the iASL compiler calls the interpreter
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* to perform constant folding.
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*/
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thread = walk_state->thread;
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if (!thread) {
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return;
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}
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/* Display the method locals and arguments */
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acpi_os_printf("\n");
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acpi_db_decode_locals(walk_state);
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acpi_os_printf("\n");
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acpi_db_decode_arguments(walk_state);
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acpi_os_printf("\n");
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_db_decode_internal_object
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*
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* PARAMETERS: obj_desc - Object to be displayed
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*
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* RETURN: None
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*
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* DESCRIPTION: Short display of an internal object. Numbers/Strings/Buffers.
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*
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******************************************************************************/
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void acpi_db_decode_internal_object(union acpi_operand_object *obj_desc)
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{
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u32 i;
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if (!obj_desc) {
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acpi_os_printf(" Uninitialized");
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return;
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}
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if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) {
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acpi_os_printf(" %p [%s]", obj_desc,
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acpi_ut_get_descriptor_name(obj_desc));
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return;
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}
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acpi_os_printf(" %s", acpi_ut_get_object_type_name(obj_desc));
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switch (obj_desc->common.type) {
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case ACPI_TYPE_INTEGER:
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acpi_os_printf(" %8.8X%8.8X",
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ACPI_FORMAT_UINT64(obj_desc->integer.value));
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break;
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case ACPI_TYPE_STRING:
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acpi_os_printf("(%u) \"%.60s",
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obj_desc->string.length,
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obj_desc->string.pointer);
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if (obj_desc->string.length > 60) {
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acpi_os_printf("...");
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} else {
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acpi_os_printf("\"");
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}
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break;
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case ACPI_TYPE_BUFFER:
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acpi_os_printf("(%u)", obj_desc->buffer.length);
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for (i = 0; (i < 8) && (i < obj_desc->buffer.length); i++) {
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acpi_os_printf(" %2.2X", obj_desc->buffer.pointer[i]);
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}
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break;
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default:
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acpi_os_printf(" %p", obj_desc);
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break;
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_db_decode_node
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*
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* PARAMETERS: node - Object to be displayed
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*
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* RETURN: None
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*
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* DESCRIPTION: Short display of a namespace node
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*
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******************************************************************************/
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static void acpi_db_decode_node(struct acpi_namespace_node *node)
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{
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acpi_os_printf("<Node> Name %4.4s",
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acpi_ut_get_node_name(node));
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if (node->flags & ANOBJ_METHOD_ARG) {
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acpi_os_printf(" [Method Arg]");
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}
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if (node->flags & ANOBJ_METHOD_LOCAL) {
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acpi_os_printf(" [Method Local]");
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}
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switch (node->type) {
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/* These types have no attached object */
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case ACPI_TYPE_DEVICE:
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acpi_os_printf(" Device");
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break;
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case ACPI_TYPE_THERMAL:
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acpi_os_printf(" Thermal Zone");
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break;
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default:
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acpi_db_decode_internal_object(acpi_ns_get_attached_object
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(node));
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break;
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_db_display_internal_object
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*
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* PARAMETERS: obj_desc - Object to be displayed
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* walk_state - Current walk state
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*
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* RETURN: None
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*
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* DESCRIPTION: Short display of an internal object
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*
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******************************************************************************/
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void
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acpi_db_display_internal_object(union acpi_operand_object *obj_desc,
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struct acpi_walk_state *walk_state)
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{
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u8 type;
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acpi_os_printf("%p ", obj_desc);
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if (!obj_desc) {
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acpi_os_printf("<Null Object>\n");
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return;
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}
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/* Decode the object type */
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switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
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case ACPI_DESC_TYPE_PARSER:
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acpi_os_printf("<Parser> ");
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break;
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case ACPI_DESC_TYPE_NAMED:
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acpi_db_decode_node((struct acpi_namespace_node *)obj_desc);
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break;
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case ACPI_DESC_TYPE_OPERAND:
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type = obj_desc->common.type;
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if (type > ACPI_TYPE_LOCAL_MAX) {
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acpi_os_printf(" Type %X [Invalid Type]", (u32)type);
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return;
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}
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/* Decode the ACPI object type */
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switch (obj_desc->common.type) {
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case ACPI_TYPE_LOCAL_REFERENCE:
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acpi_os_printf("[%s] ",
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acpi_ut_get_reference_name(obj_desc));
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/* Decode the reference */
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switch (obj_desc->reference.class) {
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case ACPI_REFCLASS_LOCAL:
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acpi_os_printf("%X ",
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obj_desc->reference.value);
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if (walk_state) {
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obj_desc = walk_state->local_variables
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[obj_desc->reference.value].object;
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acpi_os_printf("%p", obj_desc);
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acpi_db_decode_internal_object
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(obj_desc);
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}
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break;
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case ACPI_REFCLASS_ARG:
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acpi_os_printf("%X ",
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obj_desc->reference.value);
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if (walk_state) {
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obj_desc = walk_state->arguments
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[obj_desc->reference.value].object;
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acpi_os_printf("%p", obj_desc);
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acpi_db_decode_internal_object
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(obj_desc);
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}
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break;
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case ACPI_REFCLASS_INDEX:
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switch (obj_desc->reference.target_type) {
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case ACPI_TYPE_BUFFER_FIELD:
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acpi_os_printf("%p",
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obj_desc->reference.
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object);
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acpi_db_decode_internal_object
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(obj_desc->reference.object);
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break;
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case ACPI_TYPE_PACKAGE:
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acpi_os_printf("%p",
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obj_desc->reference.
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where);
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if (!obj_desc->reference.where) {
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acpi_os_printf
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(" Uninitialized WHERE pointer");
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} else {
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acpi_db_decode_internal_object(*
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(obj_desc->
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reference.
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where));
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}
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break;
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default:
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acpi_os_printf
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("Unknown index target type");
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break;
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}
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break;
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case ACPI_REFCLASS_REFOF:
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if (!obj_desc->reference.object) {
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acpi_os_printf
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("Uninitialized reference subobject pointer");
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break;
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}
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/* Reference can be to a Node or an Operand object */
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switch (ACPI_GET_DESCRIPTOR_TYPE
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(obj_desc->reference.object)) {
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case ACPI_DESC_TYPE_NAMED:
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acpi_db_decode_node(obj_desc->reference.
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object);
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break;
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case ACPI_DESC_TYPE_OPERAND:
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acpi_db_decode_internal_object
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(obj_desc->reference.object);
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break;
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default:
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break;
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}
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break;
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case ACPI_REFCLASS_NAME:
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acpi_db_decode_node(obj_desc->reference.node);
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break;
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case ACPI_REFCLASS_DEBUG:
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case ACPI_REFCLASS_TABLE:
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acpi_os_printf("\n");
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break;
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default: /* Unknown reference class */
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acpi_os_printf("%2.2X\n",
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obj_desc->reference.class);
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break;
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}
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break;
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default:
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acpi_os_printf("<Obj> ");
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acpi_db_decode_internal_object(obj_desc);
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break;
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}
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break;
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default:
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acpi_os_printf("<Not a valid ACPI Object Descriptor> [%s]",
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acpi_ut_get_descriptor_name(obj_desc));
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break;
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}
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acpi_os_printf("\n");
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_db_decode_locals
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*
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* PARAMETERS: walk_state - State for current method
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*
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* RETURN: None
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*
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* DESCRIPTION: Display all locals for the currently running control method
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*
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******************************************************************************/
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void acpi_db_decode_locals(struct acpi_walk_state *walk_state)
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{
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u32 i;
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union acpi_operand_object *obj_desc;
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struct acpi_namespace_node *node;
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u8 display_locals = FALSE;
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node = walk_state->method_node;
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/* There are no locals for the module-level code case */
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if (node == acpi_gbl_root_node) {
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return;
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}
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if (!node) {
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acpi_os_printf
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("No method node (Executing subtree for buffer or opregion)\n");
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return;
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}
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if (node->type != ACPI_TYPE_METHOD) {
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acpi_os_printf("Executing subtree for Buffer/Package/Region\n");
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return;
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}
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/* Are any locals actually set? */
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for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
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obj_desc = walk_state->local_variables[i].object;
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if (obj_desc) {
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display_locals = TRUE;
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break;
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}
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}
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/* If any are set, only display the ones that are set */
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if (display_locals) {
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acpi_os_printf
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("\nInitialized Local Variables for Method [%4.4s]:\n",
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acpi_ut_get_node_name(node));
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for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) {
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obj_desc = walk_state->local_variables[i].object;
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if (obj_desc) {
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acpi_os_printf(" Local%X: ", i);
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acpi_db_display_internal_object(obj_desc,
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walk_state);
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}
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}
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} else {
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acpi_os_printf
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("No Local Variables are initialized for Method [%4.4s]\n",
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acpi_ut_get_node_name(node));
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}
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_db_decode_arguments
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*
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* PARAMETERS: walk_state - State for current method
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*
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* RETURN: None
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*
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* DESCRIPTION: Display all arguments for the currently running control method
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*
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******************************************************************************/
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void acpi_db_decode_arguments(struct acpi_walk_state *walk_state)
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{
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u32 i;
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union acpi_operand_object *obj_desc;
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struct acpi_namespace_node *node;
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u8 display_args = FALSE;
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node = walk_state->method_node;
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obj_desc = walk_state->method_desc;
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/* There are no arguments for the module-level code case */
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if (node == acpi_gbl_root_node) {
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return;
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}
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if (!node) {
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acpi_os_printf
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("No method node (Executing subtree for buffer or opregion)\n");
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return;
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}
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if (node->type != ACPI_TYPE_METHOD) {
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acpi_os_printf("Executing subtree for Buffer/Package/Region\n");
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return;
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}
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/* Are any arguments actually set? */
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for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
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obj_desc = walk_state->arguments[i].object;
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if (obj_desc) {
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display_args = TRUE;
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break;
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}
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}
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/* If any are set, only display the ones that are set */
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if (display_args) {
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acpi_os_printf("Initialized Arguments for Method [%4.4s]: "
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"(%X arguments defined for method invocation)\n",
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acpi_ut_get_node_name(node),
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node->object->method.param_count);
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for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) {
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obj_desc = walk_state->arguments[i].object;
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if (obj_desc) {
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acpi_os_printf(" Arg%u: ", i);
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acpi_db_display_internal_object(obj_desc,
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walk_state);
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}
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}
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} else {
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acpi_os_printf
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("No Arguments are initialized for method [%4.4s]\n",
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acpi_ut_get_node_name(node));
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}
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}
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