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diff --git a/documents/changes.txt b/documents/changes.txt index ab43358d4..a0a5931df 100755 --- a/documents/changes.txt +++ b/documents/changes.txt @@ -1,4 +1,103 @@ ---------------------------------------- +27 September 2013. Summary of changes for version 20130927: + +This release is available at https://acpica.org/downloads + + +1) ACPICA kernel-resident subsystem: + +Fixed a problem with store operations to reference objects. This change +fixes a problem where a Store operation to an ArgX object that contained a +reference to a field object did not complete the automatic dereference and +then write to the actual field object. Instead, the object type of the +field object was inadvertently changed to match the type of the source +operand. The new behavior will actually write to the field object (buffer +field or field unit), thus matching the correct ACPI-defined behavior. + +Implemented support to allow the host to redefine individual OSL +prototypes. This change enables the host to redefine OSL prototypes found +in the acpiosxf.h file. This allows the host to implement OSL interfaces +with a macro or inlined function. Further, it allows the host to add any +additional required modifiers such as __iomem, __init, __exit, etc., as +necessary on a per-interface basis. Enables maximum flexibility for the +OSL interfaces. Lv Zheng. + +Hardcoded the access width for the FADT-defined reset register. The ACPI +specification requires the reset register width to be 8 bits. ACPICA now +hardcodes the width to 8 and ignores the FADT width value. This provides +compatibility with other ACPI implementations that have allowed BIOS code +with bad register width values to go unnoticed. Matthew Garett, Bob Moore, +Lv Zheng. + +Changed the position/use of the ACPI_PRINTF_LIKE macro. This macro is used +in the OSL header (acpiosxf). The change modifies the position of this +macro in each instance where it is used (AcpiDebugPrint, etc.) to avoid +build issues if the OSL defines the implementation of the interface to be +an inline stub function. Lv Zheng. + +Deployed a new macro ACPI_EXPORT_SYMBOL_INIT for the main ACPICA +initialization interfaces. This change adds a new macro for the main init +and terminate external interfaces in order to support hosts that require +additional or different processing for these functions. Changed from +ACPI_EXPORT_SYMBOL to ACPI_EXPORT_SYMBOL_INIT for these functions. Lv +Zheng, Bob Moore. + +Cleaned up the memory allocation macros for configurability. In the common +case, the ACPI_ALLOCATE and related macros now resolve directly to their +respective AcpiOs* OSL interfaces. Two options: +1) The ACPI_ALLOCATE_ZEROED macro uses a simple local implementation by +default, unless overridden by the USE_NATIVE_ALLOCATE_ZEROED define. +2) For AcpiExec (and for debugging), the macros can optionally be resolved +to the local ACPICA interfaces that track each allocation (local tracking +is used to immediately detect memory leaks). +Lv Zheng. + +Simplified the configuration for ACPI_REDUCED_HARDWARE. Allows the kernel +to predefine this macro to either TRUE or FALSE during the system build. + +Replaced __FUNCTION_ with __func__ in the gcc-specific header. + +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: 95.8K Code, 27.0K Data, 122.8K Total + Debug Version: 185.2K Code, 77.2K Data, 262.4K Total + Previous Release: + Non-Debug Version: 96.7K Code, 27.1K Data, 123.9K Total + Debug Version: 184.4K Code, 76.8K Data, 261.2K Total + + +2) iASL Compiler/Disassembler and Tools: + +iASL: Implemented wildcard support for the -e option. This simplifies use +when there are many SSDTs that must be included to resolve external method +declarations. ACPICA BZ 1041. Example: + iasl -e ssdt*.dat -d dsdt.dat + +AcpiExec: Add history/line-editing for Unix/Linux systems. This change +adds a portable module that implements full history and limited line +editing for Unix and Linux systems. It does not use readline() due to +portability issues. Instead it uses the POSIX termio interface to put the +terminal in raw input mode so that the various special keys can be trapped +(such as up/down-arrow for history support and left/right-arrow for line +editing). Uses the existing debugger history mechanism. ACPICA BZ 1036. + +AcpiXtract: Add support to handle (ignore) "empty" lines containing only +one or more spaces. This provides compatible with early or different +versions of the AcpiDump utility. ACPICA BZ 1044. + +AcpiDump: Do not ignore tables that contain only an ACPI table header. +Apparently, some BIOSs create SSDTs that contain an ACPI table header but +no other data. This change adds support to dump these tables. Any tables +shorter than the length of an ACPI table header remain in error (an error +message is emitted). Reported by Yi Li. + +Debugger: Echo actual command along with the "unknown command" message. + +---------------------------------------- 23 August 2013. Summary of changes for version 20130823: 1) ACPICA kernel-resident subsystem: |