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#
# Copyright 2017 Advanced Micro Devices, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# on the rights to use, copy, modify, merge, publish, distribute, sub
# license, and/or sell copies of the Software, and to permit persons to whom
# the Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
# THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
# USE OR OTHER DEALINGS IN THE SOFTWARE.
"""
usage: merge_driinfo.py <list of input files>
Generates a source file which contains the DRI_CONF_xxx macros for generating
the driinfo XML that describes the available DriConf options for a driver and
its supported state trackers, based on the merged information from the input
files.
"""
from __future__ import print_function
import mako.template
import re
import sys
# Some regexps used during input parsing
RE_section_begin = re.compile(r'DRI_CONF_SECTION_(.*)')
RE_option = re.compile(r'DRI_CONF_(.*)\((.*)\)')
class Option(object):
"""
Represent a config option as:
* name: the xxx part of the DRI_CONF_xxx macro
* defaults: the defaults parameters that are passed into the macro
"""
def __init__(self, name, defaults):
self.name = name
self.defaults = defaults
class Section(object):
"""
Represent a config section description as:
* name: the xxx part of the DRI_CONF_SECTION_xxx macro
* options: list of options
"""
def __init__(self, name):
self.name = name
self.options = []
def parse_inputs(input_filenames):
success = True
sections_lists = []
for input_filename in input_filenames:
with open(input_filename, 'r') as infile:
sections = []
sections_lists.append(sections)
section = None
linenum = 0
for line in infile:
linenum += 1
line = line.strip()
if not line:
continue
if line.startswith('//'):
continue
if line == 'DRI_CONF_SECTION_END':
if section is None:
print('{}:{}: no open section'
.format(input_filename, linenum))
success = False
continue
section = None
continue
m = RE_section_begin.match(line)
if m:
if section is not None:
print('{}:{}: nested sections are not supported'
.format(input_filename, linenum))
success = False
continue
if sections is None:
print('{}:{}: missing DRIINFO line'
.format(input_filename, linenum))
success = False
break # parsing the rest really makes no sense
section = Section(m.group(1))
sections.append(section)
continue
m = RE_option.match(line)
if m:
if section is None:
print('{}:{}: no open section'
.format(input_filename, linenum))
success = False
break
section.options.append(Option(m.group(1), m.group(2)))
continue
print('{}:{}: do not understand this line'
.format(input_filename, linenum))
success = False
if section is not None:
print('{}:end-of-file: missing end of section'
.format(input_filename))
success = False
if success:
return sections_lists
return None
def merge_sections(section_list):
"""
section_list: list of Section objects to be merged, all of the same name
Return a merged Section object (everything is deeply copied)
"""
merged_section = Section(section_list[0].name)
for section in section_list:
assert section.name == merged_section.name
for orig_option in section.options:
for merged_option in merged_section.options:
if orig_option.name == merged_option.name:
merged_option.defaults = orig_option.defaults
break
else:
merged_section.options.append(Option(orig_option.name, orig_option.defaults))
return merged_section
def merge_sections_lists(sections_lists):
"""
sections_lists: list of lists of Section objects to be merged
Return a merged list of merged Section objects; everything is deeply copied.
Default values for options in later lists override earlier default values.
"""
merged_sections = []
for idx,sections in enumerate(sections_lists):
for base_section in sections:
original_sections = [base_section]
for next_sections in sections_lists[idx+1:]:
for j,section in enumerate(next_sections):
if section.name == base_section.name:
original_sections.append(section)
del next_sections[j]
break
merged_section = merge_sections(original_sections)
merged_sections.append(merged_section)
return merged_sections
def main(input_filenames):
sections_lists = parse_inputs(input_filenames)
if sections_lists is None:
return False
merged_sections_list = merge_sections_lists(sections_lists)
driinfo_h_template = mako.template.Template("""\
// DO NOT EDIT - this file is automatically generated by merge_driinfo.py
/*
Use as:
#include "xmlpool.h"
static const char driinfo_xml[] =
#include "this_file"
;
*/
DRI_CONF_BEGIN
% for section in sections:
DRI_CONF_SECTION_${section.name}
% for option in section.options:
DRI_CONF_${option.name}(${option.defaults})
% endfor
DRI_CONF_SECTION_END
% endfor
DRI_CONF_END""")
print(driinfo_h_template.render(sections=merged_sections_list))
return True
if __name__ == '__main__':
if len(sys.argv) <= 1:
print('Missing arguments')
sys.exit(1)
if not main(sys.argv[1:]):
sys.exit(1)
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