Logfile: Changes for version 20200326

Version 20200326.

documents/changes.txt

@@ -1,3 +1,98 @@
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+26 March 2020. Summary of changes for version 20200326:
+
+
+1) ACPICA kernel-resident subsystem:
+
+Performed a code clean-up to prevent build errors on early versions of 
+GCC-10.
+
+Added the NHLT table signature. iASL data table compiler/disassembler 
+support for this table is coming soon.
+
+
+2) iASL Compiler/Disassembler and ACPICA tools: 
+
+AcpiExec: Fixed several problems with the namespace initialization file 
+(-fi<filename> option). Includes fixes to prevent AE_ALREADY_EXISTS 
+errors, several seg faults, and enhancements to line parsing within the 
+init file. In addition, each object found in the init file and it's new 
+value is displayed, as well as any such entries that do not have a 
+corresponding name in the namespace. For reference, the syntax for the 
+various supported data types are presented below:
+	PCHG 0x777788889999BBBB	// Integer
+	\DEV1.STR1 "XYZ"			// String
+	BUF1 (88 99 AA)			// Buffer
+	PKG1 [0x1111 0x2222]		// Package
+	\BF1 0x7980				// BufferField
+	RCRV 0x0123456789ABCDEF	// Field Unit
+
+iASL: Added a custom iASL macro __EXPECT__(iASL-Error-Code). This macro 
+can be used anywhere in a given ASL file to configure iASL to expect an 
+iASL compiler error code on the line where this macro was placed. If the 
+error code does not exist, an error is generated. This is intended to be 
+used for ACPICA's ASL test suite, but can be used by ASL developers as 
+well.
+
+iASL: table compiler: Implemented IVRS IVHD type 11h parsing. The AMD 
+IVRS table parsing supported only IVHD type 10h structures. Parsing an 
+IVHD type 11h caused the iasl to report unknown subtable type. Add 
+necessary structure definition for IVHD type 11h and apply correct 
+parsing method based on subtable type. Micha? ?ygowski.
+
+iASL: table compiler: Fixed IVRS table IVHD type 10h reserved field name 
+According to AMD IOMMU Specification Revision 3.05 the reserved field 
+should be IOMMU Feature Reporting. Change the name of the field to the 
+correct one. Micha? ?ygowski.
+
+acpiexec: removed redeclaration of AcpiGbl_DbOpt_NoRegionSupport. Patch 
+based on suggestions by David Seifert and Benjamin Berg.
+
+iASL: table compiler: removed an unused variable (DtCompilerParserResult) 
+causing linking errors. Patch based on suggestions by David Seifert and 
+Benjamin Berg.
+
+iASL: table compiler: make LexBuffer static to avoid linking errors in 
+newer compilers. Patch based on suggestions by David Seifert and Benjamin 
+Berg.
+
+iASL: fixed type matching between External and Named objects. External 
+object types can only be expressed with ACPI object type values that are 
+defined in the ACPI spec. However, iASL uses ACPI object type values that 
+are local to ACPICA in addition to the values defined in the ACPI spec. 
+This change implements type matching to map some object type values 
+specific to ACPICA to ones that are defined in the ACPI spec.
+
+iASL: Dropped the type mismatch compiler error that can arise from 
+External declarations to a warning. This warning can occur when there is 
+a type difference between the external declaration and the actual object 
+declaration (when compiling multiple files/modules simultaneously).
+
+iASL: removed an incorrect error message regarding externals. This change 
+removes an incorrect error that is emitted when a duplicate external 
+declaration does not contain a type that opens a scope. This is incorrect 
+because the duplicate external with conflicting types are already caught 
+by iASL and it doesn't make any sense to enforce what this conflicting 
+type should be.
+
+AcpiXtract: fix AX_IS_TABLE_BLOCK_HEADER macro. This macro needs to be 
+surrounded by parens. Otherwise, a logical statement that applies a 
+logical not operator to this macro could result in a computation that 
+applies the operator to the left side of the logical and but not the 
+right. Reported-by: John Levon <john.levon@joyent.com>
+
+Fixed a problem with the local version of sprint(): On 32-bit, the 
+provided sprintf() is non-functional: with a size of ACPI_UINT32_MAX, 
+String + Size will wrap, meaning End < Start, and 
+AcpiUtBoundStringOutput() will never output anything as a result. The 
+symptom seen of this was acpixtract failing to output anything -- with a 
+custom build that included utprint.c. Signed-off-by: John Levon 
+<john.levon@joyent.com>
+
+iASL: Changed the "PlatformCommChannel" ASL keyword to "PCC", as per the 
+ACPI specification.
+
+
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 14 February 2020. Summary of changes for version 20200214: