523 lines
13 KiB
C
523 lines
13 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
|
|
/*******************************************************************************
|
|
*
|
|
* Module Name: dbxface - AML Debugger external interfaces
|
|
*
|
|
******************************************************************************/
|
|
|
|
#include <acpi/acpi.h>
|
|
#include "accommon.h"
|
|
#include "amlcode.h"
|
|
#include "acdebug.h"
|
|
#include "acinterp.h"
|
|
#include "acparser.h"
|
|
|
|
#define _COMPONENT ACPI_CA_DEBUGGER
|
|
ACPI_MODULE_NAME("dbxface")
|
|
|
|
/* Local prototypes */
|
|
static acpi_status
|
|
acpi_db_start_command(struct acpi_walk_state *walk_state,
|
|
union acpi_parse_object *op);
|
|
|
|
#ifdef ACPI_OBSOLETE_FUNCTIONS
|
|
void acpi_db_method_end(struct acpi_walk_state *walk_state);
|
|
#endif
|
|
|
|
#ifdef ACPI_DISASSEMBLER
|
|
static union acpi_parse_object *acpi_db_get_display_op(struct acpi_walk_state
|
|
*walk_state,
|
|
union acpi_parse_object
|
|
*op);
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_db_start_command
|
|
*
|
|
* PARAMETERS: walk_state - Current walk
|
|
* op - Current executing Op, from AML interpreter
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Enter debugger command loop
|
|
*
|
|
******************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_db_start_command(struct acpi_walk_state *walk_state,
|
|
union acpi_parse_object *op)
|
|
{
|
|
acpi_status status;
|
|
|
|
/* TBD: [Investigate] are there namespace locking issues here? */
|
|
|
|
/* acpi_ut_release_mutex (ACPI_MTX_NAMESPACE); */
|
|
|
|
/* Go into the command loop and await next user command */
|
|
|
|
acpi_gbl_method_executing = TRUE;
|
|
status = AE_CTRL_TRUE;
|
|
|
|
while (status == AE_CTRL_TRUE) {
|
|
|
|
/* Notify the completion of the command */
|
|
|
|
status = acpi_os_notify_command_complete();
|
|
if (ACPI_FAILURE(status)) {
|
|
goto error_exit;
|
|
}
|
|
|
|
/* Wait the readiness of the command */
|
|
|
|
status = acpi_os_wait_command_ready();
|
|
if (ACPI_FAILURE(status)) {
|
|
goto error_exit;
|
|
}
|
|
|
|
status =
|
|
acpi_db_command_dispatch(acpi_gbl_db_line_buf, walk_state,
|
|
op);
|
|
}
|
|
|
|
/* acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE); */
|
|
|
|
error_exit:
|
|
if (ACPI_FAILURE(status) && status != AE_CTRL_TERMINATE) {
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
|
"While parsing/handling command line"));
|
|
}
|
|
return (status);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_db_signal_break_point
|
|
*
|
|
* PARAMETERS: walk_state - Current walk
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Called for AML_BREAKPOINT_OP
|
|
*
|
|
******************************************************************************/
|
|
|
|
void acpi_db_signal_break_point(struct acpi_walk_state *walk_state)
|
|
{
|
|
|
|
#ifndef ACPI_APPLICATION
|
|
if (acpi_gbl_db_thread_id != acpi_os_get_thread_id()) {
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Set the single-step flag. This will cause the debugger (if present)
|
|
* to break to the console within the AML debugger at the start of the
|
|
* next AML instruction.
|
|
*/
|
|
acpi_gbl_cm_single_step = TRUE;
|
|
acpi_os_printf("**break** Executed AML BreakPoint opcode\n");
|
|
}
|
|
|
|
#ifdef ACPI_DISASSEMBLER
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_db_get_display_op
|
|
*
|
|
* PARAMETERS: walk_state - Current walk
|
|
* op - Current executing op (from aml interpreter)
|
|
*
|
|
* RETURN: Opcode to display
|
|
*
|
|
* DESCRIPTION: Find the opcode to display during single stepping
|
|
*
|
|
******************************************************************************/
|
|
|
|
static union acpi_parse_object *acpi_db_get_display_op(struct acpi_walk_state
|
|
*walk_state,
|
|
union acpi_parse_object
|
|
*op)
|
|
{
|
|
union acpi_parse_object *display_op;
|
|
union acpi_parse_object *parent_op;
|
|
|
|
display_op = op;
|
|
parent_op = op->common.parent;
|
|
if (parent_op) {
|
|
if ((walk_state->control_state) &&
|
|
(walk_state->control_state->common.state ==
|
|
ACPI_CONTROL_PREDICATE_EXECUTING)) {
|
|
/*
|
|
* We are executing the predicate of an IF or WHILE statement
|
|
* Search upwards for the containing IF or WHILE so that the
|
|
* entire predicate can be displayed.
|
|
*/
|
|
while (parent_op) {
|
|
if ((parent_op->common.aml_opcode == AML_IF_OP)
|
|
|| (parent_op->common.aml_opcode ==
|
|
AML_WHILE_OP)) {
|
|
display_op = parent_op;
|
|
break;
|
|
}
|
|
parent_op = parent_op->common.parent;
|
|
}
|
|
} else {
|
|
while (parent_op) {
|
|
if ((parent_op->common.aml_opcode == AML_IF_OP)
|
|
|| (parent_op->common.aml_opcode ==
|
|
AML_ELSE_OP)
|
|
|| (parent_op->common.aml_opcode ==
|
|
AML_SCOPE_OP)
|
|
|| (parent_op->common.aml_opcode ==
|
|
AML_METHOD_OP)
|
|
|| (parent_op->common.aml_opcode ==
|
|
AML_WHILE_OP)) {
|
|
break;
|
|
}
|
|
display_op = parent_op;
|
|
parent_op = parent_op->common.parent;
|
|
}
|
|
}
|
|
}
|
|
return display_op;
|
|
}
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_db_single_step
|
|
*
|
|
* PARAMETERS: walk_state - Current walk
|
|
* op - Current executing op (from aml interpreter)
|
|
* opcode_class - Class of the current AML Opcode
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Called just before execution of an AML opcode.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_db_single_step(struct acpi_walk_state *walk_state,
|
|
union acpi_parse_object *op, u32 opcode_class)
|
|
{
|
|
union acpi_parse_object *next;
|
|
acpi_status status = AE_OK;
|
|
u32 original_debug_level;
|
|
u32 aml_offset;
|
|
|
|
ACPI_FUNCTION_ENTRY();
|
|
|
|
#ifndef ACPI_APPLICATION
|
|
if (acpi_gbl_db_thread_id != acpi_os_get_thread_id()) {
|
|
return (AE_OK);
|
|
}
|
|
#endif
|
|
|
|
/* Check the abort flag */
|
|
|
|
if (acpi_gbl_abort_method) {
|
|
acpi_gbl_abort_method = FALSE;
|
|
return (AE_ABORT_METHOD);
|
|
}
|
|
|
|
aml_offset = (u32)ACPI_PTR_DIFF(op->common.aml,
|
|
walk_state->parser_state.aml_start);
|
|
|
|
/* Check for single-step breakpoint */
|
|
|
|
if (walk_state->method_breakpoint &&
|
|
(walk_state->method_breakpoint <= aml_offset)) {
|
|
|
|
/* Check if the breakpoint has been reached or passed */
|
|
/* Hit the breakpoint, resume single step, reset breakpoint */
|
|
|
|
acpi_os_printf("***Break*** at AML offset %X\n", aml_offset);
|
|
acpi_gbl_cm_single_step = TRUE;
|
|
acpi_gbl_step_to_next_call = FALSE;
|
|
walk_state->method_breakpoint = 0;
|
|
}
|
|
|
|
/* Check for user breakpoint (Must be on exact Aml offset) */
|
|
|
|
else if (walk_state->user_breakpoint &&
|
|
(walk_state->user_breakpoint == aml_offset)) {
|
|
acpi_os_printf("***UserBreakpoint*** at AML offset %X\n",
|
|
aml_offset);
|
|
acpi_gbl_cm_single_step = TRUE;
|
|
acpi_gbl_step_to_next_call = FALSE;
|
|
walk_state->method_breakpoint = 0;
|
|
}
|
|
|
|
/*
|
|
* Check if this is an opcode that we are interested in --
|
|
* namely, opcodes that have arguments
|
|
*/
|
|
if (op->common.aml_opcode == AML_INT_NAMEDFIELD_OP) {
|
|
return (AE_OK);
|
|
}
|
|
|
|
switch (opcode_class) {
|
|
case AML_CLASS_UNKNOWN:
|
|
case AML_CLASS_ARGUMENT: /* constants, literals, etc. do nothing */
|
|
|
|
return (AE_OK);
|
|
|
|
default:
|
|
|
|
/* All other opcodes -- continue */
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Under certain debug conditions, display this opcode and its operands
|
|
*/
|
|
if ((acpi_gbl_db_output_to_file) ||
|
|
(acpi_gbl_cm_single_step) || (acpi_dbg_level & ACPI_LV_PARSE)) {
|
|
if ((acpi_gbl_db_output_to_file) ||
|
|
(acpi_dbg_level & ACPI_LV_PARSE)) {
|
|
acpi_os_printf
|
|
("\nAML Debug: Next AML Opcode to execute:\n");
|
|
}
|
|
|
|
/*
|
|
* Display this op (and only this op - zero out the NEXT field
|
|
* temporarily, and disable parser trace output for the duration of
|
|
* the display because we don't want the extraneous debug output)
|
|
*/
|
|
original_debug_level = acpi_dbg_level;
|
|
acpi_dbg_level &= ~(ACPI_LV_PARSE | ACPI_LV_FUNCTIONS);
|
|
next = op->common.next;
|
|
op->common.next = NULL;
|
|
|
|
/* Now we can disassemble and display it */
|
|
|
|
#ifdef ACPI_DISASSEMBLER
|
|
acpi_dm_disassemble(walk_state,
|
|
acpi_db_get_display_op(walk_state, op),
|
|
ACPI_UINT32_MAX);
|
|
#else
|
|
/*
|
|
* The AML Disassembler is not configured - at least we can
|
|
* display the opcode value and name
|
|
*/
|
|
acpi_os_printf("AML Opcode: %4.4X %s\n", op->common.aml_opcode,
|
|
acpi_ps_get_opcode_name(op->common.aml_opcode));
|
|
#endif
|
|
|
|
if ((op->common.aml_opcode == AML_IF_OP) ||
|
|
(op->common.aml_opcode == AML_WHILE_OP)) {
|
|
if (walk_state->control_state->common.value) {
|
|
acpi_os_printf
|
|
("Predicate = [True], IF block was executed\n");
|
|
} else {
|
|
acpi_os_printf
|
|
("Predicate = [False], Skipping IF block\n");
|
|
}
|
|
} else if (op->common.aml_opcode == AML_ELSE_OP) {
|
|
acpi_os_printf
|
|
("Predicate = [False], ELSE block was executed\n");
|
|
}
|
|
|
|
/* Restore everything */
|
|
|
|
op->common.next = next;
|
|
acpi_os_printf("\n");
|
|
if ((acpi_gbl_db_output_to_file) ||
|
|
(acpi_dbg_level & ACPI_LV_PARSE)) {
|
|
acpi_os_printf("\n");
|
|
}
|
|
acpi_dbg_level = original_debug_level;
|
|
}
|
|
|
|
/* If we are not single stepping, just continue executing the method */
|
|
|
|
if (!acpi_gbl_cm_single_step) {
|
|
return (AE_OK);
|
|
}
|
|
|
|
/*
|
|
* If we are executing a step-to-call command,
|
|
* Check if this is a method call.
|
|
*/
|
|
if (acpi_gbl_step_to_next_call) {
|
|
if (op->common.aml_opcode != AML_INT_METHODCALL_OP) {
|
|
|
|
/* Not a method call, just keep executing */
|
|
|
|
return (AE_OK);
|
|
}
|
|
|
|
/* Found a method call, stop executing */
|
|
|
|
acpi_gbl_step_to_next_call = FALSE;
|
|
}
|
|
|
|
/*
|
|
* If the next opcode is a method call, we will "step over" it
|
|
* by default.
|
|
*/
|
|
if (op->common.aml_opcode == AML_INT_METHODCALL_OP) {
|
|
|
|
/* Force no more single stepping while executing called method */
|
|
|
|
acpi_gbl_cm_single_step = FALSE;
|
|
|
|
/*
|
|
* Set the breakpoint on/before the call, it will stop execution
|
|
* as soon as we return
|
|
*/
|
|
walk_state->method_breakpoint = 1; /* Must be non-zero! */
|
|
}
|
|
|
|
acpi_ex_exit_interpreter();
|
|
status = acpi_db_start_command(walk_state, op);
|
|
acpi_ex_enter_interpreter();
|
|
|
|
/* User commands complete, continue execution of the interrupted method */
|
|
|
|
return (status);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_initialize_debugger
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Init and start debugger
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status acpi_initialize_debugger(void)
|
|
{
|
|
acpi_status status;
|
|
|
|
ACPI_FUNCTION_TRACE(acpi_initialize_debugger);
|
|
|
|
/* Init globals */
|
|
|
|
acpi_gbl_db_buffer = NULL;
|
|
acpi_gbl_db_filename = NULL;
|
|
acpi_gbl_db_output_to_file = FALSE;
|
|
|
|
acpi_gbl_db_debug_level = ACPI_LV_VERBOSITY2;
|
|
acpi_gbl_db_console_debug_level = ACPI_NORMAL_DEFAULT | ACPI_LV_TABLES;
|
|
acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
|
|
|
|
acpi_gbl_db_opt_no_ini_methods = FALSE;
|
|
acpi_gbl_db_opt_no_region_support = FALSE;
|
|
|
|
acpi_gbl_db_buffer = acpi_os_allocate(ACPI_DEBUG_BUFFER_SIZE);
|
|
if (!acpi_gbl_db_buffer) {
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
|
}
|
|
memset(acpi_gbl_db_buffer, 0, ACPI_DEBUG_BUFFER_SIZE);
|
|
|
|
/* Initial scope is the root */
|
|
|
|
acpi_gbl_db_scope_buf[0] = AML_ROOT_PREFIX;
|
|
acpi_gbl_db_scope_buf[1] = 0;
|
|
acpi_gbl_db_scope_node = acpi_gbl_root_node;
|
|
|
|
/* Initialize user commands loop */
|
|
|
|
acpi_gbl_db_terminate_loop = FALSE;
|
|
|
|
/*
|
|
* If configured for multi-thread support, the debug executor runs in
|
|
* a separate thread so that the front end can be in another address
|
|
* space, environment, or even another machine.
|
|
*/
|
|
if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) {
|
|
|
|
/* These were created with one unit, grab it */
|
|
|
|
status = acpi_os_initialize_debugger();
|
|
if (ACPI_FAILURE(status)) {
|
|
acpi_os_printf("Could not get debugger mutex\n");
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Create the debug execution thread to execute commands */
|
|
|
|
acpi_gbl_db_threads_terminated = FALSE;
|
|
status = acpi_os_execute(OSL_DEBUGGER_MAIN_THREAD,
|
|
acpi_db_execute_thread, NULL);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
|
"Could not start debugger thread"));
|
|
acpi_gbl_db_threads_terminated = TRUE;
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
} else {
|
|
acpi_gbl_db_thread_id = acpi_os_get_thread_id();
|
|
}
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL(acpi_initialize_debugger)
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_terminate_debugger
|
|
*
|
|
* PARAMETERS: None
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Stop debugger
|
|
*
|
|
******************************************************************************/
|
|
void acpi_terminate_debugger(void)
|
|
{
|
|
|
|
/* Terminate the AML Debugger */
|
|
|
|
acpi_gbl_db_terminate_loop = TRUE;
|
|
|
|
if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) {
|
|
|
|
/* Wait the AML Debugger threads */
|
|
|
|
while (!acpi_gbl_db_threads_terminated) {
|
|
acpi_os_sleep(100);
|
|
}
|
|
|
|
acpi_os_terminate_debugger();
|
|
}
|
|
|
|
if (acpi_gbl_db_buffer) {
|
|
acpi_os_free(acpi_gbl_db_buffer);
|
|
acpi_gbl_db_buffer = NULL;
|
|
}
|
|
|
|
/* Ensure that debug output is now disabled */
|
|
|
|
acpi_gbl_db_output_flags = ACPI_DB_DISABLE_OUTPUT;
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL(acpi_terminate_debugger)
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_set_debugger_thread_id
|
|
*
|
|
* PARAMETERS: thread_id - Debugger thread ID
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Set debugger thread ID
|
|
*
|
|
******************************************************************************/
|
|
void acpi_set_debugger_thread_id(acpi_thread_id thread_id)
|
|
{
|
|
acpi_gbl_db_thread_id = thread_id;
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL(acpi_set_debugger_thread_id)
|