Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-26 04:42:12 +00:00
Code Issues Packages Projects Releases Wiki Activity

ACPI: create CONFIG_ACPI_DEBUG_FUNC_TRACE

Browse Source 
Split ACPI_DEBUG into function trace enabled and not enabled.

Function trace is most of the ACPI_DEBUG costs, but is
not much of use for kernel ACPI debugging.

Size of kernel image increased on test compile:
+ 48k  (Full ACPI_DEBUG)
+ 35k  (ACPI_DEBUG with function trace compiled out)

Performance without function trace is also much better.

Also remove ACPI_LV_DEBUG_OBJECT from default debug level as
a lot vendors let Store (value, debug) in their code and this
might confuse users when it pops up in syslog.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Thomas Renninger 2007-05-31 17:20:39 +02:00 committed by Len Brown
parent 54ca412336
commit 798d910398
3 changed files with 33 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/acpi/Kconfig
View File

@ -280,6 +280,14 @@ config ACPI_DEBUG
of verbosity. Saying Y enables these statements. This will increase
your kernel size by around 50K.
config ACPI_DEBUG_FUNC_TRACE
bool "Additionally enable ACPI function tracing"
default n
depends on ACPI_DEBUG
help
ACPI Debug Statements slow down ACPI processing. Function trace
is about half of the penalty and is rarely useful.
config ACPI_EC
bool
default y

23
include/acpi/acmacros.h
View File

@ -486,6 +486,8 @@
#define ACPI_FUNCTION_NAME(name)
#endif
#ifdef DEBUG_FUNC_TRACE
#define ACPI_FUNCTION_TRACE(a) ACPI_FUNCTION_NAME(a) \
acpi_ut_trace(ACPI_DEBUG_PARAMETERS)
#define ACPI_FUNCTION_TRACE_PTR(a,b) ACPI_FUNCTION_NAME(a) \
@ -563,6 +565,27 @@
#endif /* ACPI_SIMPLE_RETURN_MACROS */
#else /* !DEBUG_FUNC_TRACE */
#define ACPI_FUNCTION_TRACE(a)
#define ACPI_FUNCTION_TRACE_PTR(a,b)
#define ACPI_FUNCTION_TRACE_U32(a,b)
#define ACPI_FUNCTION_TRACE_STR(a,b)
#define ACPI_FUNCTION_EXIT
#define ACPI_FUNCTION_STATUS_EXIT(s)
#define ACPI_FUNCTION_VALUE_EXIT(s)
#define ACPI_FUNCTION_TRACE(a)
#define ACPI_FUNCTION_ENTRY()
#define return_VOID return
#define return_ACPI_STATUS(s) return(s)
#define return_VALUE(s) return(s)
#define return_UINT8(s) return(s)
#define return_UINT32(s) return(s)
#define return_PTR(s) return(s)
#endif /* DEBUG_FUNC_TRACE */
/* Conditional execution */
#define ACPI_DEBUG_EXEC(a) a

4
include/acpi/acoutput.h
View File

@ -178,8 +178,8 @@
/* Defaults for debug_level, debug and normal */
#define ACPI_DEBUG_DEFAULT (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR | ACPI_LV_DEBUG_OBJECT)
#define ACPI_NORMAL_DEFAULT (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR | ACPI_LV_DEBUG_OBJECT)
#define ACPI_DEBUG_DEFAULT (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR)
#define ACPI_NORMAL_DEFAULT (ACPI_LV_INIT | ACPI_LV_WARN | ACPI_LV_ERROR)
#define ACPI_DEBUG_ALL (ACPI_LV_AML_DISASSEMBLE | ACPI_LV_ALL_EXCEPTIONS | ACPI_LV_ALL)
#endif /* __ACOUTPUT_H__ */