Now, only allow "SSDT" "OEM", and a null signature.
History:
1) Originally, we checked the table signature for "SSDT" or "PSDT".
2) We added support for OEMx tables, signature "OEM".
3) Valid tables were encountered with a null signature, so we just
gave up on validating the signature, (05/2008).
4) We encountered non-AML tables such as the MADT, which caused
interpreter errors and kernel faults. So now, we once again allow
only "SSDT", "OEMx", and now, also a null signature. (05/2011).
Always setup all arguments required by the method, even if the
command line specifies no arguments, or insufficient arguments.
Use "default" values for the missing arguments.
Also fixes a bug where only 6 method arguments were supported by
these commands instead of the maximum 7 arguments.
Now that DTC has full expression support, we don't want to have comment
strings that start with a paren or a less-than symbol. Now, only the
standard /* and // comments are supported, as well as the bracket []
comments.
Allow generic data types in custom acpi tables.
Field names are now optional.
Any line can be split to multiple lines using continuation char (\).
Large buffers now use line-continuation char and no colon on the
continuation lines.
See grammar update in the iASL compiler reference.
ACPI BZ 910,911. Lin Ming, Bob Moore.
This change will force the execution of a _REG method underneath
the EC device even if there is no corresponding operation region
of type EmbeddedControl. Fixes a problem seen on some machines and
apparently is compatible with Windows behavior. ACPICA BZ 875.
Adds a check for each _REG to ensure that there is in fact a
corresponding operation region declaration in the same scope. If
not, the _REG method is not very useful. ACPICA BZ 915.
This change adds another group of predefined names to the list
of names eligible to have NULL package elements dynamically
removed. This group is the names that return a single
variable-length package containing simple data types such
as integers, buffers, strings. This includes: _ALx,_BCL,_CID,
_DOD,_EDL,_FIX,_PCL,_PLD,_PMD,_PRx,_PSL,_Sx, and _TZD.
ACPICA BZ 914.
Since the parser stuffs a "zero" as the return value for these
statements (due to the AML grammar), they were seen as "return with
value" by the semantic checking. They are now seen correctly as
"null" return statements.
We do not want to completely abort the compiler on "fatal" errors, simply
should abort the current compile. This allows multiple compiles with a
single (possibly wildcard) compiler invocation.
On some systems, a global lock interrupt can occur without the pending
flag being set. Upon a GL interrupt, we now ensure that a thread
is actually waiting for the lock before signalling GL availability.
Rafael Wysocki, Bob Moore.
Apparently some or all versions of acpidump will occasionally drop
a comment like "Wrong checksum", etc., into the dump file. This
was causing problems for AcpiXtract. ACPICA BZ 905.
