BaseTools: Rename AmlToHex script to AmlToC

The AmlToHex script and Posix/WindowsLike wrappers convert
an AML file to a .hex file, containing a C array storing
AML bytecode. This ".hex" file can then be included in a
C file, allowing to access the AML bytecode from this C
file.

The EDK2 build system doesn't allow to a depict dependency
orders between files of different languages. For instance,
in a module containing a ".c" file and a ".asl", the ".c"
file may or may not be built prior to the ".asl" file.
This prevents any inclusion of a generated ".hex" in a
".c" file since this later ".hex" file may or may not
have been created yet.

This patch renames the script as AmlToC. It is posted as
a separate patch to prevent git from seeing the renaming
as a deletion plus addition of a new file.
The ending line of the posix-like bin-wrapper script has
also been corrected.

This is a first step toward generating a C file containing
the AML bytecode from an ASL file. This C file will then
be handled by the EDK2 build system to generate an object
file.
Thus, no file inclusion will be required anymore. The C file
requiring the AML bytecode as a C array, and the ASL file,
will be compiled independently. The C array must be defined
as an external symbol. The linker is resolving the
reference to the C array symbol.

To summarize, the flow goes as:
 -1. ASL file is compiled to AML;
 -2. AML file is copied to a ".amli" intermediate file;
 -3. EDK2 build system applies the rule relevant to ".amli"
     files. This is, calling the "AmlToC" script, generating
     a C file from the ".amli" file;
 -4. EDK2 build system applies the rule relevant to C files.
     This is creating an object file.
 -5. EDK2 build system links the object file containing the
     AML bytecode with the object file requiring it.

Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Suggested-by: Tomas Pilar <Tomas.Pilar@arm.com>

Reviewed-by: Bob Feng <bob.c.feng@intel.com>
This commit is contained in:
Pierre Gondois 2020-07-01 22:06:02 +08:00 committed by mergify[bot]
parent 6511277827
commit 88228db38e
3 changed files with 14 additions and 14 deletions

View File

@ -1,14 +1,14 @@
#!/usr/bin/env bash
#python `dirname $0`/RunToolFromSource.py `basename $0` $*
# If a ${PYTHON_COMMAND} command is available, use it in preference to python
if command -v ${PYTHON_COMMAND} >/dev/null 2>&1; then
python_exe=${PYTHON_COMMAND}
fi
full_cmd=${BASH_SOURCE:-$0} # see http://mywiki.wooledge.org/BashFAQ/028 for a discussion of why $0 is not a good choice here
dir=$(dirname "$full_cmd")
exe=$(basename "$full_cmd")
export PYTHONPATH="$dir/../../Source/Python${PYTHONPATH:+:"$PYTHONPATH"}"
exec "${python_exe:-python}" "$dir/../../Source/Python/$exe/$exe.py" "$@"
#!/usr/bin/env bash
#python `dirname $0`/RunToolFromSource.py `basename $0` $*
# If a ${PYTHON_COMMAND} command is available, use it in preference to python
if command -v ${PYTHON_COMMAND} >/dev/null 2>&1; then
python_exe=${PYTHON_COMMAND}
fi
full_cmd=${BASH_SOURCE:-$0} # see http://mywiki.wooledge.org/BashFAQ/028 for a discussion of why $0 is not a good choice here
dir=$(dirname "$full_cmd")
exe=$(basename "$full_cmd")
export PYTHONPATH="$dir/../../Source/Python${PYTHONPATH:+:"$PYTHONPATH"}"
exec "${python_exe:-python}" "$dir/../../Source/Python/$exe/$exe.py" "$@"