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ACPICA: DEBUG_PRINT macros: Update to improve performance.

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Move check for "debug enable" to before the actual call to the
debug print routine. Improves time of ASLTS by about 15%.  Also,
remove "safe" exit macros since no complex expressions are ever
used in the return statements.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bob Moore 2012-12-31 00:06:04 +00:00 • committed by Rafael J. Wysocki
parent 0fdce47677
commit ad5a06f296
2 changed files with 93 additions and 65 deletions
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32
include/acpi/acoutput.h
View file

@ -263,16 +263,42 @@
* Common parameters used for debug output functions:
* line number, function name, module(file) name, component ID
*/
#define ACPI_DEBUG_PARAMETERS __LINE__, ACPI_GET_FUNCTION_NAME, _acpi_module_name, _COMPONENT
#define ACPI_DEBUG_PARAMETERS \
__LINE__, ACPI_GET_FUNCTION_NAME, _acpi_module_name, _COMPONENT
/*
* Master debug print macros
* Print message if and only if:
* 1) Debug print for the current component is enabled
* 2) Debug error level or trace level for the print statement is enabled
*
* November 2012: Moved the runtime check for whether to actually emit the
* debug message outside of the print function itself. This improves overall
* performance at a relatively small code cost. Implementation involves the
* use of variadic macros supported by C99.
*/
#define ACPI_DEBUG_PRINT(plist) acpi_debug_print plist
#define ACPI_DEBUG_PRINT_RAW(plist) acpi_debug_print_raw plist
/* DEBUG_PRINT functions */
#define ACPI_DEBUG_PRINT(plist) ACPI_ACTUAL_DEBUG plist
#define ACPI_DEBUG_PRINT_RAW(plist) ACPI_ACTUAL_DEBUG_RAW plist
/* Helper macros for DEBUG_PRINT */
#define ACPI_IS_DEBUG_ENABLED(level, component) \
(level & acpi_dbg_level) && (component & acpi_dbg_layer)
#define ACPI_DEBUG(function, level, line, filename, modulename, component, ...) \
if (ACPI_IS_DEBUG_ENABLED (level, component)) \
{ \
function (level, line, filename, modulename, component, __VA_ARGS__); \
}
#define ACPI_ACTUAL_DEBUG(level, line, filename, modulename, component, ...) \
ACPI_DEBUG (acpi_debug_print, level, line, filename, modulename, component, __VA_ARGS__)
#define ACPI_ACTUAL_DEBUG_RAW(level, line, filename, modulename, component, ...) \
ACPI_DEBUG (acpi_debug_print_raw, level, line, filename, modulename, component, __VA_ARGS__)
#else
/*