| 1 | #!/usr/bin/env python3
|
|---|
| 2 |
|
|---|
| 3 | # SPDX-License-Identifier: MIT
|
|---|
| 4 | # Copyright 2023 The LFS Editors
|
|---|
| 5 |
|
|---|
| 6 | # Stupid script to render "mconf"-style kernel configuration
|
|---|
| 7 | # Usage: kernel-config.py [path to kernel tree] [needed config].toml
|
|---|
| 8 | # The toml file should be like:
|
|---|
| 9 | # for bool and tristate:
|
|---|
| 10 | # EXT4="*"
|
|---|
| 11 | # DRM="*M"
|
|---|
| 12 | # EXPERT=" "
|
|---|
| 13 | # DRM_I915="*M"
|
|---|
| 14 | # for choice:
|
|---|
| 15 | # HIGHMEM64G="X"
|
|---|
| 16 | # an entry with comment:
|
|---|
| 17 | # DRM_I915 = { value = " *M", comment = "for i915, crocus, or iris" }
|
|---|
| 18 |
|
|---|
| 19 | choice_bit = 1 << 30
|
|---|
| 20 | ind0 = 0
|
|---|
| 21 | ind1 = 0
|
|---|
| 22 | menu_id = 1
|
|---|
| 23 | stack = []
|
|---|
| 24 | if_stack = []
|
|---|
| 25 |
|
|---|
| 26 | expand_var_mp = { 'SRCARCH': 'x86' }
|
|---|
| 27 |
|
|---|
| 28 | def expand_var(s):
|
|---|
| 29 | for k in expand_var_mp:
|
|---|
| 30 | s = s.replace('$(' + k + ')', expand_var_mp[k])
|
|---|
| 31 | return s
|
|---|
| 32 |
|
|---|
| 33 | def pop_stack(cond):
|
|---|
| 34 | global ind0, ind1, stack
|
|---|
| 35 | assert(cond(stack[-1][0]))
|
|---|
| 36 | s, i0, i1, _ = stack[-1]
|
|---|
| 37 | stack = stack[:-1]
|
|---|
| 38 | ind0 -= i0
|
|---|
| 39 | ind1 -= i1
|
|---|
| 40 |
|
|---|
| 41 | def pop_stack_while(cond):
|
|---|
| 42 | while len(stack) and cond(stack[-1][0]):
|
|---|
| 43 | pop_stack(cond)
|
|---|
| 44 |
|
|---|
| 45 | def cur_menu():
|
|---|
| 46 | global stack
|
|---|
| 47 | return stack[-1][3] if len(stack) else 0
|
|---|
| 48 |
|
|---|
| 49 | def cur_if():
|
|---|
| 50 | global if_stack
|
|---|
| 51 | return if_stack[-1] if len(if_stack) else []
|
|---|
| 52 |
|
|---|
| 53 | def parse_config(buf):
|
|---|
| 54 | global ind0, ind1, stack, menu_id
|
|---|
| 55 | is_menu = buf[0].startswith('menu')
|
|---|
| 56 | key = buf[0].split()[1].strip()
|
|---|
| 57 |
|
|---|
| 58 | deps = ['menu'] + cur_if()
|
|---|
| 59 | title = None
|
|---|
| 60 | klass = None
|
|---|
| 61 | for line in buf[1:]:
|
|---|
| 62 | line = line.strip()
|
|---|
| 63 | if line.startswith('depends on '):
|
|---|
| 64 | new_deps = line[len('depends on '):].split('&&')
|
|---|
| 65 | deps += [x.strip() for x in new_deps]
|
|---|
| 66 | else:
|
|---|
| 67 | for prefix in ['tristate', 'bool', 'string']:
|
|---|
| 68 | if line.startswith(prefix + ' '):
|
|---|
| 69 | title = line[len(prefix) + 1:]
|
|---|
| 70 | klass = prefix
|
|---|
| 71 | elif line.startswith('def_' + prefix + ' '):
|
|---|
| 72 | klass = prefix
|
|---|
| 73 | elif line.startswith('prompt '):
|
|---|
| 74 | title = line[len('prompt '):]
|
|---|
| 75 |
|
|---|
| 76 | pop_stack_while(lambda x: x not in deps)
|
|---|
| 77 |
|
|---|
| 78 | if key not in known_config:
|
|---|
| 79 | return []
|
|---|
| 80 | val = known_config[key]
|
|---|
| 81 | comment = None
|
|---|
| 82 | forced = None
|
|---|
| 83 |
|
|---|
| 84 | if type(val) == dict:
|
|---|
| 85 | comment = val.get('comment')
|
|---|
| 86 | forced = val.get('forced')
|
|---|
| 87 | val = val['value']
|
|---|
| 88 |
|
|---|
| 89 | assert(title and klass)
|
|---|
| 90 | title = title.strip().lstrip('"')
|
|---|
| 91 | title = title[:title.find('"')]
|
|---|
| 92 |
|
|---|
| 93 | if klass == 'string':
|
|---|
| 94 | val = '(' + val + ')'
|
|---|
| 95 | else:
|
|---|
| 96 | assert((val == 'X') == bool(cur_menu() & choice_bit))
|
|---|
| 97 | if (val == 'X'):
|
|---|
| 98 | val = '(X)'
|
|---|
| 99 | else:
|
|---|
| 100 | val = list(val)
|
|---|
| 101 | val.sort()
|
|---|
| 102 | for c in val:
|
|---|
| 103 | if c not in 'M* ' or (c == 'M' and klass != 'tristate'):
|
|---|
| 104 | raise Exception('unknown setting %s for %s' % (c, key))
|
|---|
| 105 | bracket = None
|
|---|
| 106 | if klass == 'tristate':
|
|---|
| 107 | if forced and 'M' not in val:
|
|---|
| 108 | # render this "as-is" a forced bool
|
|---|
| 109 | klass = 'bool'
|
|---|
| 110 | else:
|
|---|
| 111 | bracket = '{}' if forced else '<>'
|
|---|
| 112 |
|
|---|
| 113 | if klass == 'bool':
|
|---|
| 114 | bracket = '--' if forced else '[]'
|
|---|
| 115 |
|
|---|
| 116 | if not bracket:
|
|---|
| 117 | raise Exception('should not reach here')
|
|---|
| 118 | val = bracket[0] + '/'.join(val) + bracket[1]
|
|---|
| 119 |
|
|---|
| 120 | arrow = ' --->' if is_menu else ''
|
|---|
| 121 | r = [(ind0, val, ind1, title, arrow, key, cur_menu(), comment)]
|
|---|
| 122 | menu_id += is_menu
|
|---|
| 123 | stack_ent = (key, 2, 0, menu_id) if is_menu else (key, 0, 2, cur_menu())
|
|---|
| 124 | ind0 += stack_ent[1]
|
|---|
| 125 | ind1 += stack_ent[2]
|
|---|
| 126 | stack += [stack_ent]
|
|---|
| 127 | return r
|
|---|
| 128 |
|
|---|
| 129 | def parse_choice(buf):
|
|---|
| 130 | global ind0, ind1, stack, menu_id
|
|---|
| 131 | assert(buf[0] == 'choice\n')
|
|---|
| 132 | title = ''
|
|---|
| 133 | for line in buf:
|
|---|
| 134 | line = line.strip()
|
|---|
| 135 | if line.startswith('prompt '):
|
|---|
| 136 | title = line[len('prompt '):].strip().strip('"')
|
|---|
| 137 | r = [(ind0, "", ind1, title, ' --->', '', cur_menu(), None)]
|
|---|
| 138 | menu_id += 1
|
|---|
| 139 | stack += [('menu', 2, 0, menu_id | choice_bit)]
|
|---|
| 140 | ind0 += 2
|
|---|
| 141 | return r
|
|---|
| 142 |
|
|---|
| 143 | def load_kconfig(file):
|
|---|
| 144 | global ind0, ind1, stack, path, menu_id, if_stack
|
|---|
| 145 | r = []
|
|---|
| 146 | config_buf = []
|
|---|
| 147 | with open(path + file) as f:
|
|---|
| 148 | for line in f:
|
|---|
| 149 | if len(config_buf):
|
|---|
| 150 | if not line.startswith('\t'):
|
|---|
| 151 | if config_buf[0] == 'choice\n':
|
|---|
| 152 | r += parse_choice(config_buf)
|
|---|
| 153 | else:
|
|---|
| 154 | r += parse_config(config_buf)
|
|---|
| 155 | config_buf = []
|
|---|
| 156 | else:
|
|---|
| 157 | config_buf += [line]
|
|---|
| 158 | continue
|
|---|
| 159 | if line.startswith('source'):
|
|---|
| 160 | sub = expand_var(line.split()[1].strip('"'))
|
|---|
| 161 | r += load_kconfig(sub)
|
|---|
| 162 | elif line.startswith('config') or line.startswith('menuconfig'):
|
|---|
| 163 | config_buf = [line]
|
|---|
| 164 | elif line.startswith('choice'):
|
|---|
| 165 | config_buf = [line]
|
|---|
| 166 | elif line.startswith("menu"):
|
|---|
| 167 | title = expand_var(line[4:].strip().strip('"'))
|
|---|
| 168 | r += [(ind0, "", ind1, title, ' --->', '', cur_menu(), None)]
|
|---|
| 169 | menu_id += 1
|
|---|
| 170 | stack += [('menu', 2, 0, menu_id)]
|
|---|
| 171 | ind0 += 2
|
|---|
| 172 | elif line.startswith('endmenu') or line.startswith('endchoice'):
|
|---|
| 173 | pop_stack_while(lambda x: x != 'menu')
|
|---|
| 174 | pop_stack(lambda x: x == 'menu')
|
|---|
| 175 | if r[-1][1] == "":
|
|---|
| 176 | # prune empty menu
|
|---|
| 177 | r = r[:-1]
|
|---|
| 178 | elif line.startswith('if '):
|
|---|
| 179 | line = line[3:]
|
|---|
| 180 | top = cur_if()
|
|---|
| 181 | top += [x.strip() for x in line.split("&&")]
|
|---|
| 182 | if_stack += [top]
|
|---|
| 183 | elif line.startswith('endif'):
|
|---|
| 184 | if_stack = if_stack[:-1]
|
|---|
| 185 | return r
|
|---|
| 186 |
|
|---|
| 187 | known_config = {}
|
|---|
| 188 |
|
|---|
| 189 | from sys import argv
|
|---|
| 190 | import tomllib
|
|---|
| 191 |
|
|---|
| 192 | path = argv[1]
|
|---|
| 193 | if path[-1] != '/':
|
|---|
| 194 | path += '/'
|
|---|
| 195 | with open(argv[2], 'rb') as f:
|
|---|
| 196 | known_config = tomllib.load(f)
|
|---|
| 197 |
|
|---|
| 198 | r = load_kconfig("Kconfig")
|
|---|
| 199 |
|
|---|
| 200 | # Now we are going to pretty-print r
|
|---|
| 201 |
|
|---|
| 202 | ## Calculate the maximum value length for each menu
|
|---|
| 203 | max_val_len = {}
|
|---|
| 204 | for _, val, _, _, _, _, menu, _ in r:
|
|---|
| 205 | x = max_val_len[menu] if menu in max_val_len else 0
|
|---|
| 206 | max_val_len[menu] = max(x, len(val))
|
|---|
| 207 |
|
|---|
| 208 | ## Output
|
|---|
| 209 |
|
|---|
| 210 | max_line = 80
|
|---|
| 211 | buf = []
|
|---|
| 212 |
|
|---|
| 213 | done = [x[5] for x in r]
|
|---|
| 214 | for i in known_config:
|
|---|
| 215 | if i not in done:
|
|---|
| 216 | raise Exception("%s seems not exist" % i)
|
|---|
| 217 |
|
|---|
| 218 | for i0, val, i1, title, arrow, key, menu, comment in r:
|
|---|
| 219 | if val:
|
|---|
| 220 | val += (max_val_len[menu] - len(val)) * ' '
|
|---|
| 221 | line = i0 * ' ' + val + (i1 + bool(val)) * ' '
|
|---|
| 222 |
|
|---|
| 223 | rem = max_line - len(line) - len(arrow)
|
|---|
| 224 |
|
|---|
| 225 | if len(title) > rem:
|
|---|
| 226 | title = title[:rem - 3] + '...'
|
|---|
| 227 |
|
|---|
| 228 | line += title + arrow
|
|---|
| 229 | rem = max_line - len(line)
|
|---|
| 230 |
|
|---|
| 231 | if key:
|
|---|
| 232 | key = ' [' + key + ']'
|
|---|
| 233 |
|
|---|
| 234 | if len(key) <= rem:
|
|---|
| 235 | line += (rem - len(key)) * ' ' + key
|
|---|
| 236 | else:
|
|---|
| 237 | key = '... ' + key
|
|---|
| 238 | line += '\n' + ' ' * (max_line - len(key)) + key
|
|---|
| 239 | if comment:
|
|---|
| 240 | line = ' ' * i0 + '# ' + comment + ':\n' + line
|
|---|
| 241 | buf += [line.replace('<', '<').replace('>', '>').rstrip()]
|
|---|
| 242 |
|
|---|
| 243 | import kernel_version
|
|---|
| 244 | kver = kernel_version.kernel_version(path)
|
|---|
| 245 |
|
|---|
| 246 | print('''<?xml version="1.0" encoding="ISO-8859-1"?>
|
|---|
| 247 | <!DOCTYPE note PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
|
|---|
| 248 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">''')
|
|---|
| 249 | print('<!-- Automatically generated by kernel-config.py for Linux', kver)
|
|---|
| 250 | print(' DO NOT EDIT! -->')
|
|---|
| 251 | print('<screen><literal>' + '\n'.join(buf) + '</literal></screen>')
|
|---|
