Release 4.7 drivers/acpi/acpica/utdebug.c

/******************************************************************************
 *
 * Module Name: utdebug - Debug print/trace routines
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2016, Intel Corp.
 * 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.
 */


#define EXPORT_ACPI_INTERFACES

#include <acpi/acpi.h>
#include "accommon.h"
#include "acinterp.h"


#define _COMPONENT          ACPI_UTILITIES
ACPI_MODULE_NAME("utdebug")

#ifdef ACPI_DEBUG_OUTPUT

static acpi_thread_id acpi_gbl_previous_thread_id = (acpi_thread_id) 0xFFFFFFFF;

static const char *acpi_gbl_function_entry_prefix = "----Entry";

static const char *acpi_gbl_function_exit_prefix = "----Exit-";

/*******************************************************************************
 *
 * 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)
{
	acpi_size current_sp;

	acpi_gbl_entry_stack_pointer = &current_sp;
}

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1
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len brown
len brown
1
6.67%
1
25.00%
robert moore
robert moore
1
6.67%
1
25.00%
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15
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100.00%

/*******************************************************************************
 *
 * 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;

	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;
	}
}

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4
11.11%
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20.00%
robert moore
robert moore
2
5.56%
1
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len brown
len brown
1
2.78%
1
20.00%
andy grover
andy grover
1
2.78%
1
20.00%
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36
100.00%
5
100.00%

/*******************************************************************************
 *
 * 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 __func__ 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);
}

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/*******************************************************************************
 *
 * FUNCTION:    acpi_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_debug_print(u32 requested_debug_level,
		 u32 line_number,
		 const char *function_name,
		 const char *module_name,
		 u32 component_id, const char *format, ...)
{
	acpi_thread_id thread_id;
	va_list args;

	/* Check if debug output enabled */

	if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
		return;
	}

	/*
         * Thread tracking and context switch notification
         */
	thread_id = acpi_os_get_thread_id();
	if (thread_id != acpi_gbl_previous_thread_id) {
		if (ACPI_LV_THREADS & acpi_dbg_level) {
			acpi_os_printf
			    ("\n**** Context Switch from TID %u to TID %u ****\n\n",
			     (u32)acpi_gbl_previous_thread_id, (u32)thread_id);
		}

		acpi_gbl_previous_thread_id = thread_id;
		acpi_gbl_nesting_level = 0;
	}

	/*
         * Display the module name, current line number, thread ID (if requested),
         * current procedure nesting level, and the current procedure name
         */
	acpi_os_printf("%9s-%04ld ", module_name, line_number);

#ifdef ACPI_APPLICATION
	/*
         * For acpi_exec/iASL only, emit the thread ID and nesting level.
         * Note: nesting level is really only useful during a single-thread
         * execution. Otherwise, multiple threads will keep resetting the
         * level.
         */
	if (ACPI_LV_THREADS & acpi_dbg_level) {
		acpi_os_printf("[%u] ", (u32)thread_id);
	}

	acpi_os_printf("[%02ld] ", acpi_gbl_nesting_level);
#endif

	acpi_os_printf("%-22.22s: ", acpi_ut_trim_function_name(function_name));

	va_start(args, format);
	acpi_os_vprintf(format, args);
	va_end(args);
}

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robert moore
48
28.74%
11
68.75%
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pre-git
24
14.37%
2
12.50%
lin ming
lin ming
11
6.59%
1
6.25%
andy grover
andy grover
1
0.60%
1
6.25%
Total
167
100.00%
16
100.00%


ACPI_EXPORT_SYMBOL(acpi_debug_print)

/*******************************************************************************
 *
 * FUNCTION:    acpi_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_debug_print_raw(u32 requested_debug_level,
		     u32 line_number,
		     const char *function_name,
		     const char *module_name,
		     u32 component_id, const char *format, ...)
{
	va_list args;

	/* Check if debug output enabled */

	if (!ACPI_IS_DEBUG_ENABLED(requested_debug_level, component_id)) {
		return;
	}

	va_start(args, format);
	acpi_os_vprintf(format, args);
	va_end(args);
}

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robert moore
23
33.82%
6
60.00%
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pre-git
17
25.00%
2
20.00%
andy grover
andy grover
1
1.47%
1
10.00%
Total
68
100.00%
10
100.00%


ACPI_EXPORT_SYMBOL(acpi_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,
	      const char *module_name, u32 component_id)
{

	acpi_gbl_nesting_level++;
	acpi_ut_track_stack_ptr();

	/* Check if enabled up-front for performance */

	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
		acpi_debug_print(ACPI_LV_FUNCTIONS,
				 line_number, function_name, module_name,
				 component_id, "%s\n",
				 acpi_gbl_function_entry_prefix);
	}
}

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linus torvalds
6
10.71%
1
11.11%
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56
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ACPI_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,
		  const char *module_name,
		  u32 component_id, const void *pointer)
{

	acpi_gbl_nesting_level++;
	acpi_ut_track_stack_ptr();

	/* Check if enabled up-front for performance */

	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
		acpi_debug_print(ACPI_LV_FUNCTIONS,
				 line_number, function_name, module_name,
				 component_id, "%s %p\n",
				 acpi_gbl_function_entry_prefix, pointer);
	}
}

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22.22%
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linus torvalds
13
20.63%
1
11.11%
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63
100.00%
9
100.00%

/*******************************************************************************
 *
 * 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,
		  const char *module_name, u32 component_id, const char *string)
{

	acpi_gbl_nesting_level++;
	acpi_ut_track_stack_ptr();

	/* Check if enabled up-front for performance */

	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
		acpi_debug_print(ACPI_LV_FUNCTIONS,
				 line_number, function_name, module_name,
				 component_id, "%s %s\n",
				 acpi_gbl_function_entry_prefix, string);
	}
}

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60.00%
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19
30.16%
2
20.00%
linus torvalds
linus torvalds
12
19.05%
1
10.00%
andy grover
andy grover
1
1.59%
1
10.00%
Total
63
100.00%
10
100.00%

/*******************************************************************************
 *
 * 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,
		  const char *module_name, u32 component_id, u32 integer)
{

	acpi_gbl_nesting_level++;
	acpi_ut_track_stack_ptr();

	/* Check if enabled up-front for performance */

	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
		acpi_debug_print(ACPI_LV_FUNCTIONS,
				 line_number, function_name, module_name,
				 component_id, "%s %08X\n",
				 acpi_gbl_function_entry_prefix, integer);
	}
}

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19
31.15%
2
22.22%
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linus torvalds
12
19.67%
1
11.11%
Total
61
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9
100.00%

/*******************************************************************************
 *
 * 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,
	     const char *module_name, u32 component_id)
{

	/* Check if enabled up-front for performance */

	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
		acpi_debug_print(ACPI_LV_FUNCTIONS,
				 line_number, function_name, module_name,
				 component_id, "%s\n",
				 acpi_gbl_function_exit_prefix);
	}

	if (acpi_gbl_nesting_level) {
		acpi_gbl_nesting_level--;
	}
}

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33.90%
2
20.00%
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linus torvalds
3
5.08%
1
10.00%
Total
59
100.00%
10
100.00%


ACPI_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,
		    const char *module_name,
		    u32 component_id, acpi_status status)
{

	/* Check if enabled up-front for performance */

	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
		if (ACPI_SUCCESS(status)) {
			acpi_debug_print(ACPI_LV_FUNCTIONS,
					 line_number, function_name,
					 module_name, component_id, "%s %s\n",
					 acpi_gbl_function_exit_prefix,
					 acpi_format_exception(status));
		} else {
			acpi_debug_print(ACPI_LV_FUNCTIONS,
					 line_number, function_name,
					 module_name, component_id,
					 "%s ****Exception****: %s\n",
					 acpi_gbl_function_exit_prefix,
					 acpi_format_exception(status));
		}
	}

	if (acpi_gbl_nesting_level) {
		acpi_gbl_nesting_level--;
	}
}

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63.64%
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linus torvalds
37
36.63%
2
18.18%
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pre-git
21
20.79%
2
18.18%
Total
101
100.00%
11
100.00%


ACPI_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,
		   const char *module_name, u32 component_id, u64 value)
{

	/* Check if enabled up-front for performance */

	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
		acpi_debug_print(ACPI_LV_FUNCTIONS,
				 line_number, function_name, module_name,
				 component_id, "%s %8.8X%8.8X\n",
				 acpi_gbl_function_exit_prefix,
				 ACPI_FORMAT_UINT64(value));
	}

	if (acpi_gbl_nesting_level) {
		acpi_gbl_nesting_level--;
	}
}

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8
57.14%
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linus torvalds
21
31.34%
3
21.43%
pre-git
pre-git
8
11.94%
2
14.29%
len brown
len brown
1
1.49%
1
7.14%
Total
67
100.00%
14
100.00%


ACPI_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,
		 const char *module_name, u32 component_id, u8 *ptr)
{

	/* Check if enabled up-front for performance */

	if (ACPI_IS_DEBUG_ENABLED(ACPI_LV_FUNCTIONS, component_id)) {
		acpi_debug_print(ACPI_LV_FUNCTIONS,
				 line_number, function_name, module_name,
				 component_id, "%s %p\n",
				 acpi_gbl_function_exit_prefix, ptr);
	}

	if (acpi_gbl_nesting_level) {
		acpi_gbl_nesting_level--;
	}
}

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linus torvalds
16
24.62%
1
11.11%
pre-git
pre-git
13
20.00%
1
11.11%
Total
65
100.00%
9
100.00%

/*******************************************************************************
 *
 * FUNCTION:    acpi_trace_point
 *
 * PARAMETERS:  type                - Trace event type
 *              begin               - TRUE if before execution
 *              aml                 - Executed AML address
 *              pathname            - Object path
 *              pointer             - Pointer to the related object
 *
 * RETURN:      None
 *
 * DESCRIPTION: Interpreter execution trace.
 *
 ******************************************************************************/


void

acpi_trace_point(acpi_trace_event_type type, u8 begin, u8 *aml, char *pathname)
{

	ACPI_FUNCTION_ENTRY();

	acpi_ex_trace_point(type, begin, aml, pathname);

#ifdef ACPI_USE_SYSTEM_TRACER
	acpi_os_trace_point(type, begin, aml, pathname);
#endif
}

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1
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ACPI_EXPORT_SYMBOL(acpi_trace_point)
#endif
#ifdef ACPI_APPLICATION
/*******************************************************************************
 *
 * FUNCTION:    acpi_log_error
 *
 * PARAMETERS:  format              - Printf format field
 *              ...                 - Optional printf arguments
 *
 * RETURN:      None
 *
 * DESCRIPTION: Print error message to the console, used by applications.
 *
 ******************************************************************************/

void ACPI_INTERNAL_VAR_XFACE acpi_log_error(const char *format, ...)
{
	va_list args;

	va_start(args, format);
	(void)acpi_ut_file_vprintf(ACPI_FILE_ERR, format, args);
	va_end(args);
}

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ACPI_EXPORT_SYMBOL(acpi_log_error)
#endif
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45.24%
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linus torvalds
279
25.81%
3
7.14%
pre-git
pre-git
196
18.13%
2
4.76%
lv zheng
lv zheng
116
10.73%
5
11.90%
len brown
len brown
17
1.57%
5
11.90%
lin ming
lin ming
11
1.02%
1
2.38%
andy grover
andy grover
11
1.02%
5
11.90%
paul gortmaker
paul gortmaker
2
0.19%
1
2.38%
patrick mochel
patrick mochel
1
0.09%
1
2.38%
Total
1081
100.00%
42
100.00%
  
Directory: drivers/acpi/acpica

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