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authorBob Moore <robert.moore@intel.com>2005-12-16 17:05:00 -0500
committerLen Brown <len.brown@intel.com>2005-12-28 02:54:59 -0500
commitdefba1d8f233c0d5cf3e1ea6aeb898eca7231860 (patch)
treecd8b1b84da8d8a52ad0d44107daaeeee0a0b65f4 /include/acpi/acglobal.h
parentcb654695f6b912cef7cb3271665b6ee0d416124c (diff)
[ACPI] ACPICA 20051216
Implemented optional support to allow unresolved names within ASL Package objects. A null object is inserted in the package when a named reference cannot be located in the current namespace. Enabled via the interpreter slack flag which Linux has enabled by default (acpi=strict to disable slack). This should eliminate AE_NOT_FOUND exceptions seen on machines that contain such code. Implemented an optimization to the initialization sequence that can improve boot time. During ACPI device initialization, the _STA method is now run if and only if the _INI method exists. The _STA method is used to determine if the device is present; An _INI can only be run if _STA returns present, but it is a waste of time to run the _STA method if the _INI does not exist. (Prototype and assistance from Dong Wei) Implemented use of the C99 uintptr_t for the pointer casting macros if it is available in the current compiler. Otherwise, the default (void *) cast is used as before. Fixed some possible memory leaks found within the execution path of the Break, Continue, If, and CreateField operators. (Valery Podrezov) Fixed a problem introduced in the 20051202 release where an exception is generated during method execution if a control method attempts to declare another method. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/acpi/acglobal.h')
-rw-r--r--include/acpi/acglobal.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/acpi/acglobal.h b/include/acpi/acglobal.h
index 3f37560c26ab..dfb3b2493ae5 100644
--- a/include/acpi/acglobal.h
+++ b/include/acpi/acglobal.h
@@ -98,11 +98,15 @@ ACPI_EXTERN u32 acpi_gbl_trace_flags;
/*
* Enable "slack" in the AML interpreter? Default is FALSE, and the
* interpreter strictly follows the ACPI specification. Setting to TRUE
- * allows the interpreter to forgive certain bad AML constructs. Currently:
+ * allows the interpreter to ignore certain errors and/or bad AML constructs.
+ *
+ * Currently, these features are enabled by this flag:
+ *
* 1) Allow "implicit return" of last value in a control method
- * 2) Allow access beyond end of operation region
+ * 2) Allow access beyond the end of an operation region
* 3) Allow access to uninitialized locals/args (auto-init to integer 0)
* 4) Allow ANY object type to be a source operand for the Store() operator
+ * 5) Allow unresolved references (invalid target name) in package objects
*/
ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE);