DynamicTablesPkg: Update ASL build options

The EdkII BaseTools have been updated to facilitate the
generation of C file containing AML data using the AmlToC
script. The build system follows the following sequence
for an ASL file compilation:
 - The ASL file is preprocessed using the C preprocessor
 - The Trim utility prunes the preprocessed file to removed
   unwanted data.
 - This file is compiled using an ASL compiler to generate
   an AML file.
 - The AmlToC python script reads the AML data and generates
   a C file with an array containing the AML data.
 - This C file containing a unique symbol name for the AML
   data array is then compiled with the firmware module.

This removes the dependency on the ACPICA iASL compiler's
"-tc" option which achieved the same effect but was less
portable. Therefore, remove the "-tc" option from the ASL
flags as this option is only been supported by the ACPICA
iASL compiler.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

2 files changed, 4 insertions, 28 deletions

diff --git a/DynamicTablesPkg/DynamicTables.dsc.inc b/DynamicTablesPkg/DynamicTables.dsc.inc
index 48ad8833f4..0f5ebace55 100644
--- a/DynamicTablesPkg/DynamicTables.dsc.inc
+++ b/DynamicTablesPkg/DynamicTables.dsc.inc
@@ -1,7 +1,7 @@
 ## @file

 #  Dsc include file for Dynamic Tables Framework.

 #

-#  Copyright (c) 2017 - 2019, ARM Limited. All rights reserved.<BR>

+#  Copyright (c) 2017 - 2020, Arm Limited. All rights reserved.<BR>

 #

 #  SPDX-License-Identifier: BSD-2-Clause-Patent

 #

@@ -10,7 +10,6 @@
 [Defines]

 

 [BuildOptions]

-  *_*_*_ASL_FLAGS          = -tc -li -so

 

 [LibraryClasses.common]

   TableHelperLib|DynamicTablesPkg/Library/Common/TableHelperLib/TableHelperLib.inf

diff --git a/DynamicTablesPkg/Readme.md b/DynamicTablesPkg/Readme.md
index e17ed3ac6f..34000cf73b 100644
--- a/DynamicTablesPkg/Readme.md
+++ b/DynamicTablesPkg/Readme.md
@@ -68,22 +68,6 @@ information file is planned.
 Also support for generating SMBIOS tables is planned and will be added

 subsequently.

 

-Related Modules

----------------

-

-### ACPICA iASL compiler

-The RAW table generator, used to process the DSDT/SSDT files depends on

-the iASL compiler to convert the DSDT/SSDT ASL files to a C array containing

-the hex AML code. The "-tc" option of the iASL compiler has been enhanced to

-support generation of an AML hex file (C header) with a unique symbol name

-so that it is suitable for inclusion from a C source file.

-

-Related Links

---------------

-

-<https://github.com/acpica/acpica.git>

-

-

 Supported Platforms

 -------------------

 1. Juno

@@ -120,16 +104,9 @@ or
 

 Prerequisites

 -------------

-ACPICA iASL compiler with the enhanced "-tc" option to support generation of

-AML hex (C header) files with unique symbol names.

-

-A patch *'[iASL: Enhance the -tc option (create AML hex file in C)](https://github.com/acpica/acpica/commit/f9a88a4c1cd020b6a5475d63b29626852a0b5f37)'*, dated 16 March 2018 (2018-03-16),

-to enable this support has been integrated to the ACPICA source repository.

-

-Ensure that the iASL compiler used for building *Dynamic Tables Framework* has this feature enabled.

-

-This feature was made available in the *ACPICA Compiler update

-[Version 20180508](https://www.acpica.org/node/156)*, dated 8 May 2018 (2018-05-08).

+Ensure that the latest ACPICA iASL compiler is used for building *Dynamic Tables Framework*.

+*Dynamic Tables Framework* has been tested using the following iASL compiler version:

+[Version 20200717](https://www.acpica.org/node/183)*, dated 17 July, 2020.

 

 

 Running CI builds locally