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diff --git a/changes.txt b/changes.txt index bcd15f396fa8..ab9cb551e791 100644 --- a/changes.txt +++ b/changes.txt @@ -1,4 +1,104 @@ ---------------------------------------- +25 March 2014. Summary of changes for version 20140325: + +1) ACPICA kernel-resident subsystem: + +Updated the auto-serialize feature for control methods. This feature +automatically serializes all methods that create named objects in order +to prevent runtime errors. The update adds support to ignore the +currently executing AML SyncLevel when invoking such a method, in order +to prevent disruption of any existing SyncLevel priorities that may exist +in the AML code. Although the use of SyncLevels is relatively rare, this +change fixes a regression where an AE_AML_MUTEX_ORDER exception can +appear on some machines starting with the 20140214 release. + +Added a new external interface to allow the host to install ACPI tables +very early, before the namespace is even created. AcpiInstallTable gives +the host additional flexibility for ACPI table management. Tables can be +installed directly by the host as if they had originally appeared in the +XSDT/RSDT. Installed tables can be SSDTs or other ACPI data tables +(anything except the DSDT and FACS). Adds a new file, tbdata.c, along +with additional internal restructuring and cleanup. See the ACPICA +Reference for interface details. Lv Zheng. + +Added validation of the checksum for all incoming dynamically loaded +tables (via external interfaces or via AML Load/LoadTable operators). Lv +Zheng. + +Updated the use of the AcpiOsWaitEventsComplete interface during Notify +and GPE handler removal. Restructured calls to eliminate possible race +conditions. Lv Zheng. + +Added a warning for the use/execution of the ASL/AML Unload (table) +operator. This will help detect and identify machines that use this +operator if and when it is ever used. This operator has never been seen +in the field and the usage model and possible side-effects of the drastic +runtime action of a full table removal are unknown. + +Reverted the use of #pragma push/pop which was introduced in the 20140214 +release. It appears that push and pop are not implemented by enough +compilers to make the use of this feature feasible for ACPICA at this +time. However, these operators may be deployed in a future ACPICA +release. + +Added the missing EXPORT_SYMBOL macros for the install and remove SCI +handler interfaces. + +Source code generation: +1) Disabled the use of the "strchr" macro for the gcc-specific +generation. For some versions of gcc, this macro can periodically expose +a compiler bug which in turn causes compile-time error(s). +2) Added support for PPC64 compilation. Colin Ian King. + +Example Code and Data Size: These are the sizes for the OS-independent +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The +debug version of the code includes the debug output trace mechanism and +has a much larger code and data size. + + Current Release: + Non-Debug Version: 97.0K Code, 27.2K Data, 124.2K Total + Debug Version: 189.7K Code, 79.5K Data, 269.2K Total + Previous Release: + Non-Debug Version: 96.5K Code, 27.2K Data, 123.7K Total + Debug Version: 188.6K Code, 79.0K Data, 267.6K Total + + +2) iASL Compiler/Disassembler and Tools: + +Disassembler: Added several new features to improve the readability of +the resulting ASL code. Extra information is emitted within comment +fields in the ASL code: +1) Known _HID/_CID values are decoded to descriptive text. +2) Standard values for the Notify() operator are decoded to descriptive +text. +3) Target operands are expanded to full pathnames (in a comment) when +possible. + +Disassembler: Miscellaneous updates for extern() handling: +1) Abort compiler if file specified by -fe option does not exist. +2) Silence unnecessary warnings about argument count mismatches. +3) Update warning messages concerning unresolved method externals. +4) Emit "UnknownObj" keyword for externals whose type cannot be +determined. + +AcpiHelp utility: +1) Added the -a option to display both the ASL syntax and the AML +encoding for an input ASL operator. This effectively displays all known +information about an ASL operator with one AcpiHelp invocation. +2) Added substring match support (similar to a wildcard) for the -i +(_HID/PNP IDs) option. + +iASL/Disassembler: Since this tool does not yet support execution on big- +endian machines, added detection of endianness and an error message if +execution is attempted on big-endian. Support for big-endian within iASL +is a feature that is on the ACPICA to-be-done list. + +AcpiBin utility: +1) Remove option to extract binary files from an acpidump; this function +is made obsolete by the AcpiXtract utility. +2) General cleanup of open files and allocated buffers. + +---------------------------------------- 14 February 2014. Summary of changes for version 20140214: 1) ACPICA kernel-resident subsystem: |