qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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module_block.py (2751B)

      1 #!/usr/bin/env python3
      2 #
      3 # Module information generator
      4 #
      5 # Copyright Red Hat, Inc. 2015 - 2016
      6 #
      7 # Authors:
      8 #  Marc Mari <markmb@redhat.com>
      9 #
     10 # This work is licensed under the terms of the GNU GPL, version 2.
     11 # See the COPYING file in the top-level directory.
     12 
     13 import sys
     14 import os
     15 
     16 def get_string_struct(line):
     17     data = line.split()
     18 
     19     # data[0] -> struct element name
     20     # data[1] -> =
     21     # data[2] -> value
     22 
     23     return data[2].replace('"', '')[:-1]
     24 
     25 def add_module(fheader, library, format_name, protocol_name):
     26     lines = []
     27     lines.append('.library_name = "' + library + '",')
     28     if format_name != "":
     29         lines.append('.format_name = "' + format_name + '",')
     30     if protocol_name != "":
     31         lines.append('.protocol_name = "' + protocol_name + '",')
     32 
     33     text = '\n        '.join(lines)
     34     fheader.write('\n    {\n        ' + text + '\n    },')
     35 
     36 def process_file(fheader, filename):
     37     # This parser assumes the coding style rules are being followed
     38     with open(filename, "r") as cfile:
     39         found_start = False
     40         library, _ = os.path.splitext(os.path.basename(filename))
     41         for line in cfile:
     42             if found_start:
     43                 line = line.replace('\n', '')
     44                 if line.find(".format_name") != -1:
     45                     format_name = get_string_struct(line)
     46                 elif line.find(".protocol_name") != -1:
     47                     protocol_name = get_string_struct(line)
     48                 elif line == "};":
     49                     add_module(fheader, library, format_name, protocol_name)
     50                     found_start = False
     51             elif line.find("static BlockDriver") != -1:
     52                 found_start = True
     53                 format_name = ""
     54                 protocol_name = ""
     55 
     56 def print_top(fheader):
     57     fheader.write('''/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
     58 /*
     59  * QEMU Block Module Infrastructure
     60  *
     61  * Authors:
     62  *  Marc Mari       <markmb@redhat.com>
     63  */
     64 
     65 ''')
     66 
     67     fheader.write('''#ifndef QEMU_MODULE_BLOCK_H
     68 #define QEMU_MODULE_BLOCK_H
     69 
     70 static const struct {
     71     const char *format_name;
     72     const char *protocol_name;
     73     const char *library_name;
     74 } block_driver_modules[] = {''')
     75 
     76 def print_bottom(fheader):
     77     fheader.write('''
     78 };
     79 
     80 #endif
     81 ''')
     82 
     83 if __name__ == '__main__':
     84     # First argument: output file
     85     # All other arguments: modules source files (.c)
     86     output_file = sys.argv[1]
     87     with open(output_file, 'w') as fheader:
     88         print_top(fheader)
     89 
     90         for filename in sys.argv[2:]:
     91             if os.path.isfile(filename):
     92                 process_file(fheader, filename)
     93             else:
     94                 print("File " + filename + " does not exist.", file=sys.stderr)
     95                 sys.exit(1)
     96 
     97         print_bottom(fheader)
     98 
     99     sys.exit(0)