23 June 2011. Summary of changes for version 20110623: This release is available at www.acpica.org/downloads 1) ACPI CA Core Subsystem: Updated the predefined name repair mechanism to not attempt repair of a _TSS return object if a _PSS object is present. We can only sort the _TSS return package if there is no _PSS within the same scope. This is because if _PSS is present, the ACPI specification dictates that the _TSS Power Dissipation field is to be ignored, and therefore some BIOSs leave garbage values in the _TSS Power field(s). In this case, it is best to just return the _TSS package as-is. Reported by, and fixed with assistance from Fenghua Yu. Added an option to globally disable the control method return value validation and repair. This runtime option can be used to disable return value repair if this is causing a problem on a particular machine. Also added an option to AcpiExec (-dr) to set this disable flag. All makefiles and project files: Major changes to improve generation of ACPICA tools. ACPICA BZ 912: Reduce default optimization levels to improve compatibility For Linux, add strict-aliasing=0 for gcc 4 Cleanup and simplify use of command line defines Cleanup multithread library support Improve usage messages Linux-specific header: update handling of THREAD_ID and pthread. For the 32-bit case, improve casting to eliminate possible warnings, especially with the acpica tools. 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. Previous Release (VC 9.0): Non-Debug Version: 90.1K Code, 23.9K Data, 114.0K Total Debug Version: 165.6K Code, 68.4K Data, 234.0K Total Current Release (VC 9.0): Non-Debug Version: 90.2K Code, 23.9K Data, 114.1K Total Debug Version: 165.6K Code, 68.4K Data, 234.0K Total 2) iASL Compiler/Disassembler and Tools: With this release, a new utility named "acpihelp" has been added to the ACPICA package. This utility summarizes the ACPI specification chapters for the ASL and AML languages. It generates under Linux/Unix as well as Windows, and provides the following functionality: Find/display ASL operator(s) -- with description and syntax. Find/display ASL keyword(s) -- with exact spelling and descriptions. Find/display ACPI predefined name(s) -- with description, number of arguments, and the return value data type. Find/display AML opcode name(s) -- with opcode, arguments, and grammar. Decode/display AML opcode -- with opcode name, arguments, and grammar. Service Layers: Make multi-thread support configurable. Conditionally compile the multi-thread support so that threading libraries will not be linked if not necessary. The only tool that requires multi-thread support is AcpiExec. iASL: Update yyerrror/AslCompilerError for "const" errors. Newer versions of Bison appear to want the interface to yyerror to be a const char * (or at least this is a problem when generating iASL on some systems.) ACPICA BZ 923 Pierre Lejeune. Tools: Fix for systems where O_BINARY is not defined. Only used for Windows versions of the tools.