319 lines
8.3 KiB
C
319 lines
8.3 KiB
C
|
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
|
||
|
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* Module Name: extrace - Support for interpreter execution tracing
|
||
|
|
*
|
||
|
|
* Copyright (C) 2000 - 2022, Intel Corp.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
#include <acpi/acpi.h>
|
||
|
|
#include "accommon.h"
|
||
|
|
#include "acnamesp.h"
|
||
|
|
#include "acinterp.h"
|
||
|
|
|
||
|
|
#define _COMPONENT ACPI_EXECUTER
|
||
|
|
ACPI_MODULE_NAME("extrace")
|
||
|
|
|
||
|
|
static union acpi_operand_object *acpi_gbl_trace_method_object = NULL;
|
||
|
|
|
||
|
|
/* Local prototypes */
|
||
|
|
|
||
|
|
#ifdef ACPI_DEBUG_OUTPUT
|
||
|
|
static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: acpi_ex_interpreter_trace_enabled
|
||
|
|
*
|
||
|
|
* PARAMETERS: name - Whether method name should be matched,
|
||
|
|
* this should be checked before starting
|
||
|
|
* the tracer
|
||
|
|
*
|
||
|
|
* RETURN: TRUE if interpreter trace is enabled.
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Check whether interpreter trace is enabled
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
static u8 acpi_ex_interpreter_trace_enabled(char *name)
|
||
|
|
{
|
||
|
|
|
||
|
|
/* Check if tracing is enabled */
|
||
|
|
|
||
|
|
if (!(acpi_gbl_trace_flags & ACPI_TRACE_ENABLED)) {
|
||
|
|
return (FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Check if tracing is filtered:
|
||
|
|
*
|
||
|
|
* 1. If the tracer is started, acpi_gbl_trace_method_object should have
|
||
|
|
* been filled by the trace starter
|
||
|
|
* 2. If the tracer is not started, acpi_gbl_trace_method_name should be
|
||
|
|
* matched if it is specified
|
||
|
|
* 3. If the tracer is oneshot style, acpi_gbl_trace_method_name should
|
||
|
|
* not be cleared by the trace stopper during the first match
|
||
|
|
*/
|
||
|
|
if (acpi_gbl_trace_method_object) {
|
||
|
|
return (TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (name &&
|
||
|
|
(acpi_gbl_trace_method_name &&
|
||
|
|
strcmp(acpi_gbl_trace_method_name, name))) {
|
||
|
|
return (FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) &&
|
||
|
|
!acpi_gbl_trace_method_name) {
|
||
|
|
return (FALSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
return (TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: acpi_ex_get_trace_event_name
|
||
|
|
*
|
||
|
|
* PARAMETERS: type - Trace event type
|
||
|
|
*
|
||
|
|
* RETURN: Trace event name.
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Used to obtain the full trace event name.
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#ifdef ACPI_DEBUG_OUTPUT
|
||
|
|
|
||
|
|
static const char *acpi_ex_get_trace_event_name(acpi_trace_event_type type)
|
||
|
|
{
|
||
|
|
|
||
|
|
switch (type) {
|
||
|
|
case ACPI_TRACE_AML_METHOD:
|
||
|
|
|
||
|
|
return "Method";
|
||
|
|
|
||
|
|
case ACPI_TRACE_AML_OPCODE:
|
||
|
|
|
||
|
|
return "Opcode";
|
||
|
|
|
||
|
|
case ACPI_TRACE_AML_REGION:
|
||
|
|
|
||
|
|
return "Region";
|
||
|
|
|
||
|
|
default:
|
||
|
|
|
||
|
|
return "";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: acpi_ex_trace_point
|
||
|
|
*
|
||
|
|
* PARAMETERS: type - Trace event type
|
||
|
|
* begin - TRUE if before execution
|
||
|
|
* aml - Executed AML address
|
||
|
|
* pathname - Object path
|
||
|
|
*
|
||
|
|
* RETURN: None
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Internal interpreter execution trace.
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
void
|
||
|
|
acpi_ex_trace_point(acpi_trace_event_type type,
|
||
|
|
u8 begin, u8 *aml, char *pathname)
|
||
|
|
{
|
||
|
|
|
||
|
|
ACPI_FUNCTION_NAME(ex_trace_point);
|
||
|
|
|
||
|
|
if (pathname) {
|
||
|
|
ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
|
||
|
|
"%s %s [0x%p:%s] execution.\n",
|
||
|
|
acpi_ex_get_trace_event_name(type),
|
||
|
|
begin ? "Begin" : "End", aml, pathname));
|
||
|
|
} else {
|
||
|
|
ACPI_DEBUG_PRINT((ACPI_DB_TRACE_POINT,
|
||
|
|
"%s %s [0x%p] execution.\n",
|
||
|
|
acpi_ex_get_trace_event_name(type),
|
||
|
|
begin ? "Begin" : "End", aml));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: acpi_ex_start_trace_method
|
||
|
|
*
|
||
|
|
* PARAMETERS: method_node - Node of the method
|
||
|
|
* obj_desc - The method object
|
||
|
|
* walk_state - current state, NULL if not yet executing
|
||
|
|
* a method.
|
||
|
|
*
|
||
|
|
* RETURN: None
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Start control method execution trace
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
void
|
||
|
|
acpi_ex_start_trace_method(struct acpi_namespace_node *method_node,
|
||
|
|
union acpi_operand_object *obj_desc,
|
||
|
|
struct acpi_walk_state *walk_state)
|
||
|
|
{
|
||
|
|
char *pathname = NULL;
|
||
|
|
u8 enabled = FALSE;
|
||
|
|
|
||
|
|
ACPI_FUNCTION_NAME(ex_start_trace_method);
|
||
|
|
|
||
|
|
if (method_node) {
|
||
|
|
pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
enabled = acpi_ex_interpreter_trace_enabled(pathname);
|
||
|
|
if (enabled && !acpi_gbl_trace_method_object) {
|
||
|
|
acpi_gbl_trace_method_object = obj_desc;
|
||
|
|
acpi_gbl_original_dbg_level = acpi_dbg_level;
|
||
|
|
acpi_gbl_original_dbg_layer = acpi_dbg_layer;
|
||
|
|
acpi_dbg_level = ACPI_TRACE_LEVEL_ALL;
|
||
|
|
acpi_dbg_layer = ACPI_TRACE_LAYER_ALL;
|
||
|
|
|
||
|
|
if (acpi_gbl_trace_dbg_level) {
|
||
|
|
acpi_dbg_level = acpi_gbl_trace_dbg_level;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (acpi_gbl_trace_dbg_layer) {
|
||
|
|
acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (enabled) {
|
||
|
|
ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, TRUE,
|
||
|
|
obj_desc ? obj_desc->method.aml_start : NULL,
|
||
|
|
pathname);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pathname) {
|
||
|
|
ACPI_FREE(pathname);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: acpi_ex_stop_trace_method
|
||
|
|
*
|
||
|
|
* PARAMETERS: method_node - Node of the method
|
||
|
|
* obj_desc - The method object
|
||
|
|
* walk_state - current state, NULL if not yet executing
|
||
|
|
* a method.
|
||
|
|
*
|
||
|
|
* RETURN: None
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Stop control method execution trace
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
void
|
||
|
|
acpi_ex_stop_trace_method(struct acpi_namespace_node *method_node,
|
||
|
|
union acpi_operand_object *obj_desc,
|
||
|
|
struct acpi_walk_state *walk_state)
|
||
|
|
{
|
||
|
|
char *pathname = NULL;
|
||
|
|
u8 enabled;
|
||
|
|
|
||
|
|
ACPI_FUNCTION_NAME(ex_stop_trace_method);
|
||
|
|
|
||
|
|
if (method_node) {
|
||
|
|
pathname = acpi_ns_get_normalized_pathname(method_node, TRUE);
|
||
|
|
}
|
||
|
|
|
||
|
|
enabled = acpi_ex_interpreter_trace_enabled(NULL);
|
||
|
|
|
||
|
|
if (enabled) {
|
||
|
|
ACPI_TRACE_POINT(ACPI_TRACE_AML_METHOD, FALSE,
|
||
|
|
obj_desc ? obj_desc->method.aml_start : NULL,
|
||
|
|
pathname);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check whether the tracer should be stopped */
|
||
|
|
|
||
|
|
if (acpi_gbl_trace_method_object == obj_desc) {
|
||
|
|
|
||
|
|
/* Disable further tracing if type is one-shot */
|
||
|
|
|
||
|
|
if (acpi_gbl_trace_flags & ACPI_TRACE_ONESHOT) {
|
||
|
|
acpi_gbl_trace_method_name = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
acpi_dbg_level = acpi_gbl_original_dbg_level;
|
||
|
|
acpi_dbg_layer = acpi_gbl_original_dbg_layer;
|
||
|
|
acpi_gbl_trace_method_object = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (pathname) {
|
||
|
|
ACPI_FREE(pathname);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: acpi_ex_start_trace_opcode
|
||
|
|
*
|
||
|
|
* PARAMETERS: op - The parser opcode object
|
||
|
|
* walk_state - current state, NULL if not yet executing
|
||
|
|
* a method.
|
||
|
|
*
|
||
|
|
* RETURN: None
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Start opcode execution trace
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
void
|
||
|
|
acpi_ex_start_trace_opcode(union acpi_parse_object *op,
|
||
|
|
struct acpi_walk_state *walk_state)
|
||
|
|
{
|
||
|
|
|
||
|
|
ACPI_FUNCTION_NAME(ex_start_trace_opcode);
|
||
|
|
|
||
|
|
if (acpi_ex_interpreter_trace_enabled(NULL) &&
|
||
|
|
(acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
|
||
|
|
ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, TRUE,
|
||
|
|
op->common.aml, op->common.aml_op_name);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
*
|
||
|
|
* FUNCTION: acpi_ex_stop_trace_opcode
|
||
|
|
*
|
||
|
|
* PARAMETERS: op - The parser opcode object
|
||
|
|
* walk_state - current state, NULL if not yet executing
|
||
|
|
* a method.
|
||
|
|
*
|
||
|
|
* RETURN: None
|
||
|
|
*
|
||
|
|
* DESCRIPTION: Stop opcode execution trace
|
||
|
|
*
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
void
|
||
|
|
acpi_ex_stop_trace_opcode(union acpi_parse_object *op,
|
||
|
|
struct acpi_walk_state *walk_state)
|
||
|
|
{
|
||
|
|
|
||
|
|
ACPI_FUNCTION_NAME(ex_stop_trace_opcode);
|
||
|
|
|
||
|
|
if (acpi_ex_interpreter_trace_enabled(NULL) &&
|
||
|
|
(acpi_gbl_trace_flags & ACPI_TRACE_OPCODE)) {
|
||
|
|
ACPI_TRACE_POINT(ACPI_TRACE_AML_OPCODE, FALSE,
|
||
|
|
op->common.aml, op->common.aml_op_name);
|
||
|
|
}
|
||
|
|
}
|