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589 lines
15 KiB
589 lines
15 KiB
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 |
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/******************************************************************************* |
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* |
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* Module Name: dbmethod - Debug commands for control methods |
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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 "acdispat.h" |
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#include "acnamesp.h" |
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#include "acdebug.h" |
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#include "acparser.h" |
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#include "acpredef.h" |
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#define _COMPONENT ACPI_CA_DEBUGGER |
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ACPI_MODULE_NAME("dbmethod") |
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/* Local prototypes */ |
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static acpi_status |
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acpi_db_walk_for_execute(acpi_handle obj_handle, |
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u32 nesting_level, void *context, void **return_value); |
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static acpi_status acpi_db_evaluate_object(struct acpi_namespace_node *node); |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_set_method_breakpoint |
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* |
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* PARAMETERS: location - AML offset of breakpoint |
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* walk_state - Current walk info |
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* op - Current Op (from parse walk) |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Set a breakpoint in a control method at the specified |
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* AML offset |
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* |
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******************************************************************************/ |
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void |
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acpi_db_set_method_breakpoint(char *location, |
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struct acpi_walk_state *walk_state, |
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union acpi_parse_object *op) |
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{ |
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u32 address; |
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u32 aml_offset; |
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if (!op) { |
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acpi_os_printf("There is no method currently executing\n"); |
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return; |
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} |
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/* Get and verify the breakpoint address */ |
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address = strtoul(location, NULL, 16); |
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aml_offset = (u32)ACPI_PTR_DIFF(op->common.aml, |
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walk_state->parser_state.aml_start); |
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if (address <= aml_offset) { |
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acpi_os_printf("Breakpoint %X is beyond current address %X\n", |
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address, aml_offset); |
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} |
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/* Save breakpoint in current walk */ |
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walk_state->user_breakpoint = address; |
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acpi_os_printf("Breakpoint set at AML offset %X\n", address); |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_set_method_call_breakpoint |
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* |
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* PARAMETERS: op - Current Op (from parse walk) |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Set a breakpoint in a control method at the specified |
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* AML offset |
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* |
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******************************************************************************/ |
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void acpi_db_set_method_call_breakpoint(union acpi_parse_object *op) |
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{ |
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if (!op) { |
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acpi_os_printf("There is no method currently executing\n"); |
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return; |
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} |
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acpi_gbl_step_to_next_call = TRUE; |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_set_method_data |
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* |
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* PARAMETERS: type_arg - L for local, A for argument |
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* index_arg - which one |
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* value_arg - Value to set. |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Set a local or argument for the running control method. |
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* NOTE: only object supported is Number. |
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* |
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******************************************************************************/ |
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void acpi_db_set_method_data(char *type_arg, char *index_arg, char *value_arg) |
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{ |
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char type; |
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u32 index; |
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u32 value; |
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struct acpi_walk_state *walk_state; |
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union acpi_operand_object *obj_desc; |
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acpi_status status; |
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struct acpi_namespace_node *node; |
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/* Validate type_arg */ |
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acpi_ut_strupr(type_arg); |
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type = type_arg[0]; |
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if ((type != 'L') && (type != 'A') && (type != 'N')) { |
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acpi_os_printf("Invalid SET operand: %s\n", type_arg); |
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return; |
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} |
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value = strtoul(value_arg, NULL, 16); |
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if (type == 'N') { |
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node = acpi_db_convert_to_node(index_arg); |
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if (!node) { |
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return; |
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} |
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if (node->type != ACPI_TYPE_INTEGER) { |
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acpi_os_printf("Can only set Integer nodes\n"); |
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return; |
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} |
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obj_desc = node->object; |
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obj_desc->integer.value = value; |
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return; |
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} |
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/* Get the index and value */ |
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index = strtoul(index_arg, NULL, 16); |
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walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list); |
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if (!walk_state) { |
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acpi_os_printf("There is no method currently executing\n"); |
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return; |
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} |
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/* Create and initialize the new object */ |
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obj_desc = acpi_ut_create_integer_object((u64)value); |
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if (!obj_desc) { |
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acpi_os_printf("Could not create an internal object\n"); |
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return; |
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} |
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/* Store the new object into the target */ |
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switch (type) { |
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case 'A': |
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/* Set a method argument */ |
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if (index > ACPI_METHOD_MAX_ARG) { |
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acpi_os_printf("Arg%u - Invalid argument name\n", |
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index); |
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goto cleanup; |
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} |
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status = acpi_ds_store_object_to_local(ACPI_REFCLASS_ARG, |
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index, obj_desc, |
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walk_state); |
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if (ACPI_FAILURE(status)) { |
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goto cleanup; |
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} |
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obj_desc = walk_state->arguments[index].object; |
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acpi_os_printf("Arg%u: ", index); |
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acpi_db_display_internal_object(obj_desc, walk_state); |
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break; |
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case 'L': |
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/* Set a method local */ |
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if (index > ACPI_METHOD_MAX_LOCAL) { |
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acpi_os_printf |
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("Local%u - Invalid local variable name\n", index); |
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goto cleanup; |
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} |
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status = acpi_ds_store_object_to_local(ACPI_REFCLASS_LOCAL, |
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index, obj_desc, |
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walk_state); |
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if (ACPI_FAILURE(status)) { |
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goto cleanup; |
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} |
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obj_desc = walk_state->local_variables[index].object; |
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acpi_os_printf("Local%u: ", index); |
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acpi_db_display_internal_object(obj_desc, walk_state); |
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break; |
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default: |
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break; |
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} |
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cleanup: |
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acpi_ut_remove_reference(obj_desc); |
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} |
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#ifdef ACPI_DISASSEMBLER |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_disassemble_aml |
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* |
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* PARAMETERS: statements - Number of statements to disassemble |
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* op - Current Op (from parse walk) |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number |
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* of statements specified. |
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* |
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******************************************************************************/ |
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void acpi_db_disassemble_aml(char *statements, union acpi_parse_object *op) |
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{ |
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u32 num_statements = 8; |
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if (!op) { |
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acpi_os_printf("There is no method currently executing\n"); |
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return; |
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} |
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if (statements) { |
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num_statements = strtoul(statements, NULL, 0); |
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} |
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acpi_dm_disassemble(NULL, op, num_statements); |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_disassemble_method |
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* |
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* PARAMETERS: name - Name of control method |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number |
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* of statements specified. |
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* |
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******************************************************************************/ |
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acpi_status acpi_db_disassemble_method(char *name) |
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{ |
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acpi_status status; |
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union acpi_parse_object *op; |
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struct acpi_walk_state *walk_state; |
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union acpi_operand_object *obj_desc; |
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struct acpi_namespace_node *method; |
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method = acpi_db_convert_to_node(name); |
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if (!method) { |
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return (AE_BAD_PARAMETER); |
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} |
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if (method->type != ACPI_TYPE_METHOD) { |
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ACPI_ERROR((AE_INFO, "%s (%s): Object must be a control method", |
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name, acpi_ut_get_type_name(method->type))); |
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return (AE_BAD_PARAMETER); |
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} |
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obj_desc = method->object; |
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op = acpi_ps_create_scope_op(obj_desc->method.aml_start); |
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if (!op) { |
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return (AE_NO_MEMORY); |
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} |
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/* Create and initialize a new walk state */ |
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walk_state = acpi_ds_create_walk_state(0, op, NULL, NULL); |
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if (!walk_state) { |
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return (AE_NO_MEMORY); |
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} |
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status = acpi_ds_init_aml_walk(walk_state, op, NULL, |
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obj_desc->method.aml_start, |
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obj_desc->method.aml_length, NULL, |
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ACPI_IMODE_LOAD_PASS1); |
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if (ACPI_FAILURE(status)) { |
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return (status); |
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} |
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status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id); |
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if (ACPI_FAILURE(status)) { |
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return (status); |
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} |
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walk_state->owner_id = obj_desc->method.owner_id; |
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/* Push start scope on scope stack and make it current */ |
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status = acpi_ds_scope_stack_push(method, method->type, walk_state); |
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if (ACPI_FAILURE(status)) { |
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return (status); |
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} |
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/* Parse the entire method AML including deferred operators */ |
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walk_state->parse_flags &= ~ACPI_PARSE_DELETE_TREE; |
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walk_state->parse_flags |= ACPI_PARSE_DISASSEMBLE; |
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status = acpi_ps_parse_aml(walk_state); |
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if (ACPI_FAILURE(status)) { |
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return (status); |
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} |
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(void)acpi_dm_parse_deferred_ops(op); |
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/* Now we can disassemble the method */ |
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acpi_gbl_dm_opt_verbose = FALSE; |
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acpi_dm_disassemble(NULL, op, 0); |
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acpi_gbl_dm_opt_verbose = TRUE; |
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acpi_ps_delete_parse_tree(op); |
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/* Method cleanup */ |
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acpi_ns_delete_namespace_subtree(method); |
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acpi_ns_delete_namespace_by_owner(obj_desc->method.owner_id); |
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acpi_ut_release_owner_id(&obj_desc->method.owner_id); |
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return (AE_OK); |
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} |
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#endif |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_evaluate_object |
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* |
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* PARAMETERS: node - Namespace node for the object |
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* |
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* RETURN: Status |
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* |
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* DESCRIPTION: Main execution function for the Evaluate/Execute/All debugger |
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* commands. |
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* |
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******************************************************************************/ |
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static acpi_status acpi_db_evaluate_object(struct acpi_namespace_node *node) |
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{ |
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char *pathname; |
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u32 i; |
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struct acpi_device_info *obj_info; |
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struct acpi_object_list param_objects; |
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union acpi_object params[ACPI_METHOD_NUM_ARGS]; |
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struct acpi_buffer return_obj; |
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acpi_status status; |
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pathname = acpi_ns_get_external_pathname(node); |
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if (!pathname) { |
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return (AE_OK); |
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} |
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/* Get the object info for number of method parameters */ |
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status = acpi_get_object_info(node, &obj_info); |
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if (ACPI_FAILURE(status)) { |
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ACPI_FREE(pathname); |
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return (status); |
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} |
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param_objects.pointer = NULL; |
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param_objects.count = 0; |
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if (obj_info->type == ACPI_TYPE_METHOD) { |
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/* Setup default parameters */ |
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for (i = 0; i < obj_info->param_count; i++) { |
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params[i].type = ACPI_TYPE_INTEGER; |
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params[i].integer.value = 1; |
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} |
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param_objects.pointer = params; |
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param_objects.count = obj_info->param_count; |
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} |
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ACPI_FREE(obj_info); |
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return_obj.pointer = NULL; |
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return_obj.length = ACPI_ALLOCATE_BUFFER; |
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/* Do the actual method execution */ |
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acpi_gbl_method_executing = TRUE; |
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status = acpi_evaluate_object(node, NULL, ¶m_objects, &return_obj); |
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acpi_gbl_method_executing = FALSE; |
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acpi_os_printf("%-32s returned %s\n", pathname, |
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acpi_format_exception(status)); |
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if (return_obj.length) { |
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acpi_os_printf("Evaluation of %s returned object %p, " |
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"external buffer length %X\n", |
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pathname, return_obj.pointer, |
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(u32)return_obj.length); |
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acpi_db_dump_external_object(return_obj.pointer, 1); |
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acpi_os_printf("\n"); |
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} |
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ACPI_FREE(pathname); |
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/* Ignore status from method execution */ |
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return (AE_OK); |
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/* Update count, check if we have executed enough methods */ |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_walk_for_execute |
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* |
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* PARAMETERS: Callback from walk_namespace |
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* |
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* RETURN: Status |
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* |
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* DESCRIPTION: Batch execution function. Evaluates all "predefined" objects -- |
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* the nameseg begins with an underscore. |
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* |
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******************************************************************************/ |
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static acpi_status |
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acpi_db_walk_for_execute(acpi_handle obj_handle, |
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u32 nesting_level, void *context, void **return_value) |
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{ |
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struct acpi_namespace_node *node = |
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(struct acpi_namespace_node *)obj_handle; |
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struct acpi_db_execute_walk *info = |
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(struct acpi_db_execute_walk *)context; |
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acpi_status status; |
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const union acpi_predefined_info *predefined; |
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predefined = acpi_ut_match_predefined_method(node->name.ascii); |
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if (!predefined) { |
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return (AE_OK); |
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} |
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if (node->type == ACPI_TYPE_LOCAL_SCOPE) { |
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return (AE_OK); |
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} |
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acpi_db_evaluate_object(node); |
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/* Ignore status from object evaluation */ |
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status = AE_OK; |
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/* Update count, check if we have executed enough methods */ |
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info->count++; |
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if (info->count >= info->max_count) { |
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status = AE_CTRL_TERMINATE; |
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} |
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return (status); |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_walk_for_execute_all |
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* |
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* PARAMETERS: Callback from walk_namespace |
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* |
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* RETURN: Status |
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* |
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* DESCRIPTION: Batch execution function. Evaluates all objects whose path ends |
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* with the nameseg "Info->NameSeg". Used for the "ALL" command. |
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* |
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******************************************************************************/ |
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static acpi_status |
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acpi_db_walk_for_execute_all(acpi_handle obj_handle, |
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u32 nesting_level, |
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void *context, void **return_value) |
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{ |
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struct acpi_namespace_node *node = |
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(struct acpi_namespace_node *)obj_handle; |
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struct acpi_db_execute_walk *info = |
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(struct acpi_db_execute_walk *)context; |
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acpi_status status; |
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if (!ACPI_COMPARE_NAMESEG(node->name.ascii, info->name_seg)) { |
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return (AE_OK); |
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} |
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if (node->type == ACPI_TYPE_LOCAL_SCOPE) { |
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return (AE_OK); |
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} |
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/* Now evaluate the input object (node) */ |
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acpi_db_evaluate_object(node); |
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/* Ignore status from method execution */ |
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status = AE_OK; |
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/* Update count of executed methods/objects */ |
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info->count++; |
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return (status); |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_evaluate_predefined_names |
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* |
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* PARAMETERS: None |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Namespace batch execution. Execute predefined names in the |
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* namespace, up to the max count, if specified. |
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* |
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******************************************************************************/ |
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void acpi_db_evaluate_predefined_names(void) |
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{ |
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struct acpi_db_execute_walk info; |
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info.count = 0; |
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info.max_count = ACPI_UINT32_MAX; |
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/* Search all nodes in namespace */ |
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(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, |
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ACPI_UINT32_MAX, acpi_db_walk_for_execute, |
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NULL, (void *)&info, NULL); |
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acpi_os_printf("Evaluated %u predefined names in the namespace\n", |
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info.count); |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_db_evaluate_all |
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* |
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* PARAMETERS: none_acpi_gbl_db_method_info |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Namespace batch execution. Implements the "ALL" command. |
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* Execute all namepaths whose final nameseg matches the |
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* input nameseg. |
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* |
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******************************************************************************/ |
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void acpi_db_evaluate_all(char *name_seg) |
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{ |
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struct acpi_db_execute_walk info; |
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info.count = 0; |
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info.max_count = ACPI_UINT32_MAX; |
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ACPI_COPY_NAMESEG(info.name_seg, name_seg); |
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info.name_seg[ACPI_NAMESEG_SIZE] = 0; |
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/* Search all nodes in namespace */ |
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(void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, |
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ACPI_UINT32_MAX, acpi_db_walk_for_execute_all, |
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NULL, (void *)&info, NULL); |
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acpi_os_printf("Evaluated %u names in the namespace\n", info.count); |
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}
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