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Logfile: Changes for version 20120816.

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Version 20120816.
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Robert Moore 2012-08-16 08:42:31 -07:00
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16 August 2012. Summary of changes for version 20120816:
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:
Removed all use of the deprecated _GTS and _BFS predefined methods. The _GTS
(Going To Sleep) and _BFS (Back From Sleep) methods are essentially
deprecated and will probably be removed from the ACPI specification. Windows
does not invoke them, and reportedly never will. The final nail in the coffin
is that the ACPI specification states that these methods must be run with
interrupts off, which is not going to happen in a kernel interpreter. Note:
Linux has removed all use of the methods also. It was discovered that
invoking these functions caused failures on some machines, probably because
they were never tested since Windows does not call them. Affects two external
interfaces, AcpiEnterSleepState and AcpiLeaveSleepStatePrep. Tang Feng.
ACPICA BZ 969.
Implemented support for complex bit-packed buffers returned from the _PLD
(Physical Location of Device) predefined method. Adds a new external
interface, AcpiDecodePldBuffer that parses the buffer into a more usable C
structure. Note: C Bitfields cannot be used for this type of predefined
structure since the memory layout of individual bitfields is not defined by
the C language. In addition, there are endian concerns where a compiler will
change the bitfield ordering based on the machine type. The new ACPICA
interface eliminates these issues, and should be called after _PLD is
executed. ACPICA BZ 954.
Implemented a change to allow a scope change to root (via "Scope (\)") during
execution of module-level ASL code (code that is executed at table load
time.) Lin Ming.
Added the Windows8/Server2012 string for the _OSI method. This change adds a
new _OSI string, "Windows 2012" for both Windows 8 and Windows Server 2012.
Added header support for the new ACPI tables DBG2 (Debug Port Table Type 2)
and CSRT (Core System Resource Table).
Added struct header support for the _FDE, _GRT, _GTM, and _SRT predefined
names. This simplifies access to the buffers returned by these predefined
names. Adds a new file, include/acbuffer.h. ACPICA BZ 956.
GPE support: Removed an extraneous parameter from the various low-level
internal GPE functions. Tang Feng.
Removed the linux makefiles from the unix packages. The generate/linux
makefiles are obsolete and have been removed from the unix tarball release
packages. The replacement makefiles are under generate/unix, and there is a
top-level makefile under the main acpica directory. ACPICA BZ 967, 912.
Updates for Unix makefiles:
1) Add -D_FORTIFY_SOURCE=2 for gcc generation. Arjan van de Ven.
2) Update linker flags (move to end of command line) for AcpiExec utility.
Guan Chao.
Split ACPICA initialization functions to new file, utxfinit.c. Split from
utxface.c to improve modularity and reduce file size.
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: 93.5K Code, 25.3K Data, 118.8K Total
Debug Version: 173.7K Code, 74.0K Data, 247.7K Total
Current Release:
Non-Debug Version: 93.8K Code, 25.3K Data, 119.1K Total
Debug Version: 175.7K Code, 74.8K Data, 250.5K Total
2) iASL Compiler/Disassembler and Tools:
iASL: Fixed a problem with constant folding for fixed-length constant
expressions. The constant-folding code was not being invoked for constant
expressions that allow the use of type 3/4/5 opcodes to generate constants
for expressions such as ByteConstExpr, WordConstExpr, etc. This could result
in the generation of invalid AML bytecode. ACPICA BZ 970.
iASL: Fixed a generation issue on newer versions of Bison. Newer versions
apparently automatically emit some of the necessary externals. This change
handles these versions in order to eliminate generation warnings.
Disassembler: Added support to decode the DBG2 and CSRT ACPI tables.
Disassembler: Add support to decode _PLD buffers. The decoded buffer appears
within comments in the output file.
Debugger: Fixed a regression with the "Threads" command where
AE_BAD_PARAMETER was always returned.
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11 July 2012. Summary of changes for version 20120711: