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611 lines
18 KiB
611 lines
18 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: utdebug - Debug print/trace routines |
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* |
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* Copyright (C) 2000 - 2021, Intel Corp. |
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* |
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*****************************************************************************/ |
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#define EXPORT_ACPI_INTERFACES |
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#include <acpi/acpi.h> |
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#include "accommon.h" |
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#include "acinterp.h" |
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#define _COMPONENT ACPI_UTILITIES |
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ACPI_MODULE_NAME("utdebug") |
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#ifdef ACPI_DEBUG_OUTPUT |
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static acpi_thread_id acpi_gbl_previous_thread_id = (acpi_thread_id) 0xFFFFFFFF; |
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static const char *acpi_gbl_function_entry_prefix = "----Entry"; |
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static const char *acpi_gbl_function_exit_prefix = "----Exit-"; |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_init_stack_ptr_trace |
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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: Save the current CPU stack pointer at subsystem startup |
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* |
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******************************************************************************/ |
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void acpi_ut_init_stack_ptr_trace(void) |
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{ |
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acpi_size current_sp; |
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acpi_gbl_entry_stack_pointer = ¤t_sp; |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_track_stack_ptr |
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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: Save the current CPU stack pointer |
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* |
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******************************************************************************/ |
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void acpi_ut_track_stack_ptr(void) |
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{ |
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acpi_size current_sp; |
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if (¤t_sp < acpi_gbl_lowest_stack_pointer) { |
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acpi_gbl_lowest_stack_pointer = ¤t_sp; |
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} |
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if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) { |
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acpi_gbl_deepest_nesting = acpi_gbl_nesting_level; |
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} |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_trim_function_name |
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* |
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* PARAMETERS: function_name - Ascii string containing a procedure name |
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* |
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* RETURN: Updated pointer to the function name |
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* |
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* DESCRIPTION: Remove the "Acpi" prefix from the function name, if present. |
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* This allows compiler macros such as __func__ to be used |
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* with no change to the debug output. |
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* |
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******************************************************************************/ |
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static const char *acpi_ut_trim_function_name(const char *function_name) |
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{ |
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/* All Function names are longer than 4 chars, check is safe */ |
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if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) { |
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/* This is the case where the original source has not been modified */ |
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return (function_name + 4); |
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} |
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if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) { |
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/* This is the case where the source has been 'linuxized' */ |
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return (function_name + 5); |
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} |
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return (function_name); |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_debug_print |
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* |
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* PARAMETERS: requested_debug_level - Requested debug print level |
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* line_number - Caller's line number (for error output) |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* format - Printf format field |
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* ... - Optional printf arguments |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Print error message with prefix consisting of the module name, |
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* line number, and component ID. |
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* |
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******************************************************************************/ |
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void ACPI_INTERNAL_VAR_XFACE |
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acpi_debug_print(u32 requested_debug_level, |
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u32 line_number, |
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const char *function_name, |
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const char *module_name, |
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u32 component_id, const char *format, ...) |
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{ |
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acpi_thread_id thread_id; |
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va_list args; |
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#ifdef ACPI_APPLICATION |
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int fill_count; |
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#endif |
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/* Check if debug output enabled */ |
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if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) { |
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return; |
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} |
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/* |
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* Thread tracking and context switch notification |
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*/ |
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thread_id = acpi_os_get_thread_id(); |
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if (thread_id != acpi_gbl_previous_thread_id) { |
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if (ACPI_LV_THREADS & acpi_dbg_level) { |
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acpi_os_printf |
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("\n**** Context Switch from TID %u to TID %u ****\n\n", |
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(u32)acpi_gbl_previous_thread_id, (u32)thread_id); |
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} |
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acpi_gbl_previous_thread_id = thread_id; |
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acpi_gbl_nesting_level = 0; |
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} |
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/* |
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* Display the module name, current line number, thread ID (if requested), |
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* current procedure nesting level, and the current procedure name |
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*/ |
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acpi_os_printf("%9s-%04d ", module_name, line_number); |
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#ifdef ACPI_APPLICATION |
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/* |
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* For acpi_exec/iASL only, emit the thread ID and nesting level. |
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* Note: nesting level is really only useful during a single-thread |
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* execution. Otherwise, multiple threads will keep resetting the |
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* level. |
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*/ |
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if (ACPI_LV_THREADS & acpi_dbg_level) { |
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acpi_os_printf("[%u] ", (u32)thread_id); |
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} |
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fill_count = 48 - acpi_gbl_nesting_level - |
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strlen(acpi_ut_trim_function_name(function_name)); |
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if (fill_count < 0) { |
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fill_count = 0; |
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} |
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acpi_os_printf("[%02d] %*s", |
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acpi_gbl_nesting_level, acpi_gbl_nesting_level + 1, " "); |
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acpi_os_printf("%s%*s: ", |
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acpi_ut_trim_function_name(function_name), fill_count, |
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" "); |
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#else |
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acpi_os_printf("%-22.22s: ", acpi_ut_trim_function_name(function_name)); |
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#endif |
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va_start(args, format); |
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acpi_os_vprintf(format, args); |
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va_end(args); |
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} |
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ACPI_EXPORT_SYMBOL(acpi_debug_print) |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_debug_print_raw |
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* |
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* PARAMETERS: requested_debug_level - Requested debug print level |
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* line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* format - Printf format field |
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* ... - Optional printf arguments |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Print message with no headers. Has same interface as |
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* debug_print so that the same macros can be used. |
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* |
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******************************************************************************/ |
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void ACPI_INTERNAL_VAR_XFACE |
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acpi_debug_print_raw(u32 requested_debug_level, |
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u32 line_number, |
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const char *function_name, |
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const char *module_name, |
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u32 component_id, const char *format, ...) |
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{ |
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va_list args; |
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/* Check if debug output enabled */ |
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if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) { |
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return; |
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} |
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va_start(args, format); |
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acpi_os_vprintf(format, args); |
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va_end(args); |
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} |
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ACPI_EXPORT_SYMBOL(acpi_debug_print_raw) |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_trace |
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* |
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* PARAMETERS: line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is |
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* set in debug_level |
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* |
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******************************************************************************/ |
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void |
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acpi_ut_trace(u32 line_number, |
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const char *function_name, |
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const char *module_name, u32 component_id) |
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{ |
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acpi_gbl_nesting_level++; |
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acpi_ut_track_stack_ptr(); |
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/* Check if enabled up-front for performance */ |
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if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, module_name, |
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component_id, "%s\n", |
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acpi_gbl_function_entry_prefix); |
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} |
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} |
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ACPI_EXPORT_SYMBOL(acpi_ut_trace) |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_trace_ptr |
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* |
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* PARAMETERS: line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* pointer - Pointer to display |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is |
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* set in debug_level |
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* |
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******************************************************************************/ |
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void |
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acpi_ut_trace_ptr(u32 line_number, |
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const char *function_name, |
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const char *module_name, |
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u32 component_id, const void *pointer) |
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{ |
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acpi_gbl_nesting_level++; |
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acpi_ut_track_stack_ptr(); |
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/* Check if enabled up-front for performance */ |
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if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, module_name, |
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component_id, "%s %p\n", |
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acpi_gbl_function_entry_prefix, pointer); |
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} |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_trace_str |
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* |
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* PARAMETERS: line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* string - Additional string to display |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is |
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* set in debug_level |
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* |
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******************************************************************************/ |
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void |
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acpi_ut_trace_str(u32 line_number, |
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const char *function_name, |
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const char *module_name, u32 component_id, const char *string) |
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{ |
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acpi_gbl_nesting_level++; |
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acpi_ut_track_stack_ptr(); |
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/* Check if enabled up-front for performance */ |
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if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, module_name, |
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component_id, "%s %s\n", |
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acpi_gbl_function_entry_prefix, string); |
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} |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_trace_u32 |
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* |
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* PARAMETERS: line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* integer - Integer to display |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is |
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* set in debug_level |
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* |
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******************************************************************************/ |
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void |
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acpi_ut_trace_u32(u32 line_number, |
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const char *function_name, |
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const char *module_name, u32 component_id, u32 integer) |
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{ |
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acpi_gbl_nesting_level++; |
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acpi_ut_track_stack_ptr(); |
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/* Check if enabled up-front for performance */ |
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if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, module_name, |
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component_id, "%s %08X\n", |
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acpi_gbl_function_entry_prefix, integer); |
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} |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_exit |
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* |
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* PARAMETERS: line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is |
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* set in debug_level |
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* |
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******************************************************************************/ |
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void |
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acpi_ut_exit(u32 line_number, |
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const char *function_name, |
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const char *module_name, u32 component_id) |
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{ |
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/* Check if enabled up-front for performance */ |
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if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, module_name, |
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component_id, "%s\n", |
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acpi_gbl_function_exit_prefix); |
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} |
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if (acpi_gbl_nesting_level) { |
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acpi_gbl_nesting_level--; |
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} |
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} |
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ACPI_EXPORT_SYMBOL(acpi_ut_exit) |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_status_exit |
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* |
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* PARAMETERS: line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* status - Exit status code |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is |
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* set in debug_level. Prints exit status also. |
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* |
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******************************************************************************/ |
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void |
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acpi_ut_status_exit(u32 line_number, |
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const char *function_name, |
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const char *module_name, |
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u32 component_id, acpi_status status) |
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{ |
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/* Check if enabled up-front for performance */ |
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if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) { |
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if (ACPI_SUCCESS(status)) { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, |
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module_name, component_id, "%s %s\n", |
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acpi_gbl_function_exit_prefix, |
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acpi_format_exception(status)); |
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} else { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, |
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module_name, component_id, |
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"%s ****Exception****: %s\n", |
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acpi_gbl_function_exit_prefix, |
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acpi_format_exception(status)); |
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} |
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} |
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if (acpi_gbl_nesting_level) { |
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acpi_gbl_nesting_level--; |
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} |
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} |
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ACPI_EXPORT_SYMBOL(acpi_ut_status_exit) |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_value_exit |
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* |
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* PARAMETERS: line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* value - Value to be printed with exit msg |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is |
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* set in debug_level. Prints exit value also. |
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* |
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******************************************************************************/ |
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void |
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acpi_ut_value_exit(u32 line_number, |
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const char *function_name, |
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const char *module_name, u32 component_id, u64 value) |
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{ |
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/* Check if enabled up-front for performance */ |
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if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, module_name, |
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component_id, "%s %8.8X%8.8X\n", |
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acpi_gbl_function_exit_prefix, |
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ACPI_FORMAT_UINT64(value)); |
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} |
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if (acpi_gbl_nesting_level) { |
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acpi_gbl_nesting_level--; |
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} |
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} |
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ACPI_EXPORT_SYMBOL(acpi_ut_value_exit) |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_ptr_exit |
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* |
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* PARAMETERS: line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* ptr - Pointer to display |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is |
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* set in debug_level. Prints exit value also. |
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* |
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******************************************************************************/ |
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void |
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acpi_ut_ptr_exit(u32 line_number, |
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const char *function_name, |
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const char *module_name, u32 component_id, u8 *ptr) |
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{ |
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/* Check if enabled up-front for performance */ |
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if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, module_name, |
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component_id, "%s %p\n", |
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acpi_gbl_function_exit_prefix, ptr); |
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} |
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if (acpi_gbl_nesting_level) { |
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acpi_gbl_nesting_level--; |
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} |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_str_exit |
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* |
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* PARAMETERS: line_number - Caller's line number |
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* function_name - Caller's procedure name |
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* module_name - Caller's module name |
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* component_id - Caller's component ID |
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* string - String to display |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is |
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* set in debug_level. Prints exit value also. |
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* |
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******************************************************************************/ |
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void |
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acpi_ut_str_exit(u32 line_number, |
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const char *function_name, |
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const char *module_name, u32 component_id, const char *string) |
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{ |
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/* Check if enabled up-front for performance */ |
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if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) { |
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acpi_debug_print(ACPI_LV_FUNCTIONS, |
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line_number, function_name, module_name, |
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component_id, "%s %s\n", |
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acpi_gbl_function_exit_prefix, string); |
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} |
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if (acpi_gbl_nesting_level) { |
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acpi_gbl_nesting_level--; |
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} |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_trace_point |
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* |
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* PARAMETERS: type - Trace event type |
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* begin - TRUE if before execution |
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* aml - Executed AML address |
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* pathname - Object path |
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* pointer - Pointer to the related object |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Interpreter execution trace. |
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* |
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******************************************************************************/ |
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void |
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acpi_trace_point(acpi_trace_event_type type, u8 begin, u8 *aml, char *pathname) |
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{ |
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ACPI_FUNCTION_ENTRY(); |
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acpi_ex_trace_point(type, begin, aml, pathname); |
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#ifdef ACPI_USE_SYSTEM_TRACER |
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acpi_os_trace_point(type, begin, aml, pathname); |
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#endif |
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} |
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ACPI_EXPORT_SYMBOL(acpi_trace_point) |
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#endif
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