| /****************************************************************************** |
| * |
| * Module Name: utdebug - Debug print routines |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2006, R. Byron Moore |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions, and the following disclaimer, |
| * without modification. |
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| * substantially similar to the "NO WARRANTY" disclaimer below |
| * ("Disclaimer") and any redistribution must be conditioned upon |
| * including a substantially similar Disclaimer requirement for further |
| * binary redistribution. |
| * 3. Neither the names of the above-listed copyright holders nor the names |
| * of any contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * NO WARRANTY |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGES. |
| */ |
| |
| #include <linux/module.h> |
| |
| #include <acpi/acpi.h> |
| |
| #define _COMPONENT ACPI_UTILITIES |
| ACPI_MODULE_NAME("utdebug") |
| |
| #ifdef ACPI_DEBUG_OUTPUT |
| static u32 acpi_gbl_prev_thread_id = 0xFFFFFFFF; |
| static char *acpi_gbl_fn_entry_str = "----Entry"; |
| static char *acpi_gbl_fn_exit_str = "----Exit-"; |
| |
| /* Local prototypes */ |
| |
| static const char *acpi_ut_trim_function_name(const char *function_name); |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_init_stack_ptr_trace |
| * |
| * PARAMETERS: None |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Save the current CPU stack pointer at subsystem startup |
| * |
| ******************************************************************************/ |
| |
| void acpi_ut_init_stack_ptr_trace(void) |
| { |
| u32 current_sp; |
| |
| acpi_gbl_entry_stack_pointer = ACPI_PTR_DIFF(¤t_sp, NULL); |
| } |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_track_stack_ptr |
| * |
| * PARAMETERS: None |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Save the current CPU stack pointer |
| * |
| ******************************************************************************/ |
| |
| void acpi_ut_track_stack_ptr(void) |
| { |
| acpi_size current_sp; |
| |
| current_sp = ACPI_PTR_DIFF(¤t_sp, NULL); |
| |
| if (current_sp < acpi_gbl_lowest_stack_pointer) { |
| acpi_gbl_lowest_stack_pointer = current_sp; |
| } |
| |
| if (acpi_gbl_nesting_level > acpi_gbl_deepest_nesting) { |
| acpi_gbl_deepest_nesting = acpi_gbl_nesting_level; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_trim_function_name |
| * |
| * PARAMETERS: function_name - Ascii string containing a procedure name |
| * |
| * RETURN: Updated pointer to the function name |
| * |
| * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present. |
| * This allows compiler macros such as __FUNCTION__ to be used |
| * with no change to the debug output. |
| * |
| ******************************************************************************/ |
| |
| static const char *acpi_ut_trim_function_name(const char *function_name) |
| { |
| |
| /* All Function names are longer than 4 chars, check is safe */ |
| |
| if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) { |
| |
| /* This is the case where the original source has not been modified */ |
| |
| return (function_name + 4); |
| } |
| |
| if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) { |
| |
| /* This is the case where the source has been 'linuxized' */ |
| |
| return (function_name + 5); |
| } |
| |
| return (function_name); |
| } |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_debug_print |
| * |
| * PARAMETERS: requested_debug_level - Requested debug print level |
| * line_number - Caller's line number (for error output) |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * Format - Printf format field |
| * ... - Optional printf arguments |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Print error message with prefix consisting of the module name, |
| * line number, and component ID. |
| * |
| ******************************************************************************/ |
| |
| void ACPI_INTERNAL_VAR_XFACE |
| acpi_ut_debug_print(u32 requested_debug_level, |
| u32 line_number, |
| const char *function_name, |
| char *module_name, u32 component_id, char *format, ...) |
| { |
| u32 thread_id; |
| va_list args; |
| |
| /* |
| * Stay silent if the debug level or component ID is disabled |
| */ |
| if (!(requested_debug_level & acpi_dbg_level) || |
| !(component_id & acpi_dbg_layer)) { |
| return; |
| } |
| |
| /* |
| * Thread tracking and context switch notification |
| */ |
| thread_id = acpi_os_get_thread_id(); |
| |
| if (thread_id != acpi_gbl_prev_thread_id) { |
| if (ACPI_LV_THREADS & acpi_dbg_level) { |
| acpi_os_printf |
| ("\n**** Context Switch from TID %X to TID %X ****\n\n", |
| acpi_gbl_prev_thread_id, thread_id); |
| } |
| |
| acpi_gbl_prev_thread_id = thread_id; |
| } |
| |
| /* |
| * Display the module name, current line number, thread ID (if requested), |
| * current procedure nesting level, and the current procedure name |
| */ |
| acpi_os_printf("%8s-%04ld ", module_name, line_number); |
| |
| if (ACPI_LV_THREADS & acpi_dbg_level) { |
| acpi_os_printf("[%04lX] ", thread_id); |
| } |
| |
| acpi_os_printf("[%02ld] %-22.22s: ", |
| acpi_gbl_nesting_level, |
| acpi_ut_trim_function_name(function_name)); |
| |
| va_start(args, format); |
| acpi_os_vprintf(format, args); |
| } |
| |
| EXPORT_SYMBOL(acpi_ut_debug_print); |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_debug_print_raw |
| * |
| * PARAMETERS: requested_debug_level - Requested debug print level |
| * line_number - Caller's line number |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * Format - Printf format field |
| * ... - Optional printf arguments |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Print message with no headers. Has same interface as |
| * debug_print so that the same macros can be used. |
| * |
| ******************************************************************************/ |
| |
| void ACPI_INTERNAL_VAR_XFACE |
| acpi_ut_debug_print_raw(u32 requested_debug_level, |
| u32 line_number, |
| const char *function_name, |
| char *module_name, u32 component_id, char *format, ...) |
| { |
| va_list args; |
| |
| if (!(requested_debug_level & acpi_dbg_level) || |
| !(component_id & acpi_dbg_layer)) { |
| return; |
| } |
| |
| va_start(args, format); |
| acpi_os_vprintf(format, args); |
| } |
| |
| EXPORT_SYMBOL(acpi_ut_debug_print_raw); |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_trace |
| * |
| * PARAMETERS: line_number - Caller's line number |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is |
| * set in debug_level |
| * |
| ******************************************************************************/ |
| |
| void |
| acpi_ut_trace(u32 line_number, |
| const char *function_name, char *module_name, u32 component_id) |
| { |
| |
| acpi_gbl_nesting_level++; |
| acpi_ut_track_stack_ptr(); |
| |
| acpi_ut_debug_print(ACPI_LV_FUNCTIONS, |
| line_number, function_name, module_name, |
| component_id, "%s\n", acpi_gbl_fn_entry_str); |
| } |
| |
| EXPORT_SYMBOL(acpi_ut_trace); |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_trace_ptr |
| * |
| * PARAMETERS: line_number - Caller's line number |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * Pointer - Pointer to display |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is |
| * set in debug_level |
| * |
| ******************************************************************************/ |
| |
| void |
| acpi_ut_trace_ptr(u32 line_number, |
| const char *function_name, |
| char *module_name, u32 component_id, void *pointer) |
| { |
| acpi_gbl_nesting_level++; |
| acpi_ut_track_stack_ptr(); |
| |
| acpi_ut_debug_print(ACPI_LV_FUNCTIONS, |
| line_number, function_name, module_name, |
| component_id, "%s %p\n", acpi_gbl_fn_entry_str, |
| pointer); |
| } |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_trace_str |
| * |
| * PARAMETERS: line_number - Caller's line number |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * String - Additional string to display |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is |
| * set in debug_level |
| * |
| ******************************************************************************/ |
| |
| void |
| acpi_ut_trace_str(u32 line_number, |
| const char *function_name, |
| char *module_name, u32 component_id, char *string) |
| { |
| |
| acpi_gbl_nesting_level++; |
| acpi_ut_track_stack_ptr(); |
| |
| acpi_ut_debug_print(ACPI_LV_FUNCTIONS, |
| line_number, function_name, module_name, |
| component_id, "%s %s\n", acpi_gbl_fn_entry_str, |
| string); |
| } |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_trace_u32 |
| * |
| * PARAMETERS: line_number - Caller's line number |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * Integer - Integer to display |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Function entry trace. Prints only if TRACE_FUNCTIONS bit is |
| * set in debug_level |
| * |
| ******************************************************************************/ |
| |
| void |
| acpi_ut_trace_u32(u32 line_number, |
| const char *function_name, |
| char *module_name, u32 component_id, u32 integer) |
| { |
| |
| acpi_gbl_nesting_level++; |
| acpi_ut_track_stack_ptr(); |
| |
| acpi_ut_debug_print(ACPI_LV_FUNCTIONS, |
| line_number, function_name, module_name, |
| component_id, "%s %08X\n", acpi_gbl_fn_entry_str, |
| integer); |
| } |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_exit |
| * |
| * PARAMETERS: line_number - Caller's line number |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is |
| * set in debug_level |
| * |
| ******************************************************************************/ |
| |
| void |
| acpi_ut_exit(u32 line_number, |
| const char *function_name, char *module_name, u32 component_id) |
| { |
| |
| acpi_ut_debug_print(ACPI_LV_FUNCTIONS, |
| line_number, function_name, module_name, |
| component_id, "%s\n", acpi_gbl_fn_exit_str); |
| |
| acpi_gbl_nesting_level--; |
| } |
| |
| EXPORT_SYMBOL(acpi_ut_exit); |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_status_exit |
| * |
| * PARAMETERS: line_number - Caller's line number |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * Status - Exit status code |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is |
| * set in debug_level. Prints exit status also. |
| * |
| ******************************************************************************/ |
| |
| void |
| acpi_ut_status_exit(u32 line_number, |
| const char *function_name, |
| char *module_name, u32 component_id, acpi_status status) |
| { |
| |
| if (ACPI_SUCCESS(status)) { |
| acpi_ut_debug_print(ACPI_LV_FUNCTIONS, |
| line_number, function_name, module_name, |
| component_id, "%s %s\n", |
| acpi_gbl_fn_exit_str, |
| acpi_format_exception(status)); |
| } else { |
| acpi_ut_debug_print(ACPI_LV_FUNCTIONS, |
| line_number, function_name, module_name, |
| component_id, "%s ****Exception****: %s\n", |
| acpi_gbl_fn_exit_str, |
| acpi_format_exception(status)); |
| } |
| |
| acpi_gbl_nesting_level--; |
| } |
| |
| EXPORT_SYMBOL(acpi_ut_status_exit); |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_value_exit |
| * |
| * PARAMETERS: line_number - Caller's line number |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * Value - Value to be printed with exit msg |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is |
| * set in debug_level. Prints exit value also. |
| * |
| ******************************************************************************/ |
| |
| void |
| acpi_ut_value_exit(u32 line_number, |
| const char *function_name, |
| char *module_name, u32 component_id, acpi_integer value) |
| { |
| |
| acpi_ut_debug_print(ACPI_LV_FUNCTIONS, |
| line_number, function_name, module_name, |
| component_id, "%s %8.8X%8.8X\n", |
| acpi_gbl_fn_exit_str, ACPI_FORMAT_UINT64(value)); |
| |
| acpi_gbl_nesting_level--; |
| } |
| |
| EXPORT_SYMBOL(acpi_ut_value_exit); |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_ptr_exit |
| * |
| * PARAMETERS: line_number - Caller's line number |
| * function_name - Caller's procedure name |
| * module_name - Caller's module name |
| * component_id - Caller's component ID |
| * Ptr - Pointer to display |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Function exit trace. Prints only if TRACE_FUNCTIONS bit is |
| * set in debug_level. Prints exit value also. |
| * |
| ******************************************************************************/ |
| |
| void |
| acpi_ut_ptr_exit(u32 line_number, |
| const char *function_name, |
| char *module_name, u32 component_id, u8 * ptr) |
| { |
| |
| acpi_ut_debug_print(ACPI_LV_FUNCTIONS, |
| line_number, function_name, module_name, |
| component_id, "%s %p\n", acpi_gbl_fn_exit_str, ptr); |
| |
| acpi_gbl_nesting_level--; |
| } |
| |
| #endif |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: acpi_ut_dump_buffer |
| * |
| * PARAMETERS: Buffer - Buffer to dump |
| * Count - Amount to dump, in bytes |
| * Display - BYTE, WORD, DWORD, or QWORD display |
| * component_iD - Caller's component ID |
| * |
| * RETURN: None |
| * |
| * DESCRIPTION: Generic dump buffer in both hex and ascii. |
| * |
| ******************************************************************************/ |
| |
| void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) |
| { |
| acpi_native_uint i = 0; |
| acpi_native_uint j; |
| u32 temp32; |
| u8 buf_char; |
| |
| /* Only dump the buffer if tracing is enabled */ |
| |
| if (!((ACPI_LV_TABLES & acpi_dbg_level) && |
| (component_id & acpi_dbg_layer))) { |
| return; |
| } |
| |
| if ((count < 4) || (count & 0x01)) { |
| display = DB_BYTE_DISPLAY; |
| } |
| |
| /* Nasty little dump buffer routine! */ |
| |
| while (i < count) { |
| |
| /* Print current offset */ |
| |
| acpi_os_printf("%6.4X: ", (u32) i); |
| |
| /* Print 16 hex chars */ |
| |
| for (j = 0; j < 16;) { |
| if (i + j >= count) { |
| |
| /* Dump fill spaces */ |
| |
| acpi_os_printf("%*s", ((display * 2) + 1), " "); |
| j += (acpi_native_uint) display; |
| continue; |
| } |
| |
| switch (display) { |
| default: /* Default is BYTE display */ |
| |
| acpi_os_printf("%02X ", buffer[i + j]); |
| break; |
| |
| case DB_WORD_DISPLAY: |
| |
| ACPI_MOVE_16_TO_32(&temp32, &buffer[i + j]); |
| acpi_os_printf("%04X ", temp32); |
| break; |
| |
| case DB_DWORD_DISPLAY: |
| |
| ACPI_MOVE_32_TO_32(&temp32, &buffer[i + j]); |
| acpi_os_printf("%08X ", temp32); |
| break; |
| |
| case DB_QWORD_DISPLAY: |
| |
| ACPI_MOVE_32_TO_32(&temp32, &buffer[i + j]); |
| acpi_os_printf("%08X", temp32); |
| |
| ACPI_MOVE_32_TO_32(&temp32, &buffer[i + j + 4]); |
| acpi_os_printf("%08X ", temp32); |
| break; |
| } |
| |
| j += (acpi_native_uint) display; |
| } |
| |
| /* |
| * Print the ASCII equivalent characters but watch out for the bad |
| * unprintable ones (printable chars are 0x20 through 0x7E) |
| */ |
| acpi_os_printf(" "); |
| for (j = 0; j < 16; j++) { |
| if (i + j >= count) { |
| acpi_os_printf("\n"); |
| return; |
| } |
| |
| buf_char = buffer[i + j]; |
| if (ACPI_IS_PRINT(buf_char)) { |
| acpi_os_printf("%c", buf_char); |
| } else { |
| acpi_os_printf("."); |
| } |
| } |
| |
| /* Done with that line. */ |
| |
| acpi_os_printf("\n"); |
| i += 16; |
| } |
| |
| return; |
| } |
