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pm:cpupower: Add SWIG bindings files for libcpupower

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SWIG is a tool packaged in Fedora and other distros that can generate
bindings from C and C++ code for several languages including Python,
Perl, and Go.

These bindings allows users to easily write scripts that use and extend
libcpupower's functionality. Currently, only Python is provided in the
makefile, but additional languages may be added if there is demand.

Added suggestions from Shuah Khan for the README and license discussion.

Note that while SWIG itself is GPL v3+ licensed; the resulting output,
the bindings code, is permissively licensed + the license of the .o
files. Please see
https://swig.org/legal.html and [1] for more details.

[1]
https://lore.kernel.org/linux-pm/Zqv9BOjxLAgyNP5B@hatbackup/

Suggested-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: John B. Wyatt IV <jwyatt@redhat.com>
Signed-off-by: John B. Wyatt IV <sageofredondo@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
John B. Wyatt IV
2024-09-04 22:19:09 -04:00
committed by Shuah Khan
parent 4b80294fb5
commit 338f490e07
4 changed files with 345 additions and 0 deletions
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tools/power/cpupower/bindings/python/Makefile
+31
View File
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# SPDX-License-Identifier: GPL-2.0-only
# Makefile for libcpupower's Python bindings
#
# This Makefile expects you have already run the makefile for cpupower to build
# the .o files in the lib directory for the bindings to be created.
CC=gcc
LIB_DIR = ../../lib
BIND_DIR = .
PY_INCLUDE := $(firstword $(shell python-config --includes))
#PY_INCLUDE = $(shell python-config --includes | awk '{ print $1 }')
OBJECTS_LIB = $(wildcard $(LIB_DIR)/*.o)
OBJECTS_BIND = $(wildcard $(BIND_DIR)/*.o)
all: _raw_pylibcpupower.so
_raw_pylibcpupower.so: raw_pylibcpupower_wrap.o
$(CC) -shared $(OBJECTS_LIB) raw_pylibcpupower_wrap.o -o _raw_pylibcpupower.so # raw_pylibcpupower_wrap.o
# $(CC) -shared $(OBJECTS_BIND) $(OBJECTS_LIB) -o _raw_pylibcpupower.so # raw_pylibcpupower_wrap.o
raw_pylibcpupower_wrap.o: raw_pylibcpupower_wrap.c
$(CC) -fPIC -c raw_pylibcpupower_wrap.c $(PY_INCLUDE)
raw_pylibcpupower_wrap.c: raw_pylibcpupower.i
swig -python raw_pylibcpupower.i
# Will only clean the bindings folder; will not clean the actual cpupower folder
clean:
rm -f raw_pylibcpupower.py raw_pylibcpupower_wrap.c raw_pylibcpupower_wrap.o _raw_pylibcpupower.so