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diff --git a/changes.txt b/changes.txt index 637478867b0f..ed764ad47ac5 100644 --- a/changes.txt +++ b/changes.txt @@ -1,4 +1,91 @@ ---------------------------------------- +20 December 2012. Summary of changes for version 20121220: + +This release is available at https://www.acpica.org/downloads +The ACPI 5.0 specification is available at www.acpi.info + +1) ACPICA Kernel-resident Subsystem: + +Implemented a new interface, AcpiWalkResourceBuffer. This interface is an +alternate entry point for AcpiWalkResources and improves the usability of +the resource manager by accepting as input a buffer containing the output +of either a _CRS, _PRS, or _AEI method. The key functionality is that the +input buffer is not deleted by this interface so that it can be used by +the host later. See the ACPICA reference for details. + +Interpreter: Add a warning if a 64-bit constant appears in a 32-bit table +(DSDT version < 2). The constant will be truncated and this warning +reflects that behavior. + +Resource Manager: Add support for the new ACPI 5.0 wake bit in the IRQ, +ExtendedInterrupt, and GpioInt descriptors. This change adds support to +both get and set the new wake bit in these descriptors, separately from +the existing share bit. Reported by Aaron Lu. + +Interpreter: Fix Store() when an implicit conversion is not possible. For +example, in the cases such as a store of a string to an existing package +object, implement the store as a CopyObject(). This is a small departure +from the ACPI specification which states that the control method should be +aborted in this case. However, the ASLTS suite depends on this behavior. + +Performance improvement for the various FUNCTION_TRACE and DEBUG_PRINT +macros: check if debug output is currently enabled as soon as possible to +minimize performance impact if debug is in fact not enabled. + +Source code restructuring: Cleanup to improve modularity. The following +new files have been added: dbconvert.c, evhandler.c, nsprepkg.c, +psopinfo.c, psobject.c, rsdumpinfo.c, utstring.c, and utownerid.c. +Associated makefiles and project files have been updated. + +Changed an exception code for LoadTable operator. For the case where one +of the input strings is too long, change the returned exception code from +AE_BAD_PARAMETER to AE_AML_STRING_LIMIT. + +Fixed a possible memory leak in dispatcher error path. On error, delete +the mutex object created during method mutex creation. Reported by +tim.gardner@canonical.com. + +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: + Non-Debug Version: 94.3K Code, 25.3K Data, 119.6K Total + Debug Version: 175.5K Code, 74.5K Data, 250.0K Total + Current Release: + Non-Debug Version: 94.5K Code, 25.5K Data, 120.0K Total + Debug Version: 182.2K Code, 74.9K Data, 257.1K Total + + +2) iASL Compiler/Disassembler and Tools: + +iASL: Disallow a method call as argument to the ObjectType ASL operator. +This change tracks an errata to the ACPI 5.0 document. The AML grammar +will not allow the interpreter to differentiate between a method and a +method invocation when these are used as an argument to the ObjectType +operator. The ACPI specification change is to disallow a method invocation +(UserTerm) for the ObjectType operator. + +Finish support for the TPM2 and CSRT tables in the headers, table +compiler, and disassembler. + +Unix user-space OSL: Fix a problem with WaitSemaphore where the timeout +always expires immediately if the semaphore is not available. The original +code was using a relative-time timeout, but sem_timedwait requires the use +of an absolute time. + +iASL: Added a remark if the Timer() operator is used within a 32-bit +table. This operator returns a 64-bit time value that will be truncated +within a 32-bit table. + +iASL Source code restructuring: Cleanup to improve modularity. The +following new files have been added: aslhex.c, aslxref.c, aslnamesp.c, +aslmethod.c, and aslfileio.c. Associated makefiles and project files have +been updated. + + +---------------------------------------- 14 November 2012. Summary of changes for version 20121114: This release is available at https://www.acpica.org/downloads |