| 1 | #!/usr/bin/env perl |
| 2 | # SPDX-License-Identifier: GPL-2.0 |
| 3 | |
| 4 | use strict; |
| 5 | use warnings; |
| 6 | use utf8; |
| 7 | use Pod::Usage; |
| 8 | use Getopt::Long; |
| 9 | use File::Find; |
| 10 | use Fcntl ':mode'; |
| 11 | |
| 12 | my $help = 0; |
| 13 | my $man = 0; |
| 14 | my $debug = 0; |
| 15 | my $enable_lineno = 0; |
| 16 | my $prefix="Documentation/ABI"; |
| 17 | |
| 18 | # |
| 19 | # If true, assumes that the description is formatted with ReST |
| 20 | # |
| 21 | my $description_is_rst = 1; |
| 22 | |
| 23 | GetOptions( |
| 24 | "debug|d+" => \$debug, |
| 25 | "enable-lineno" => \$enable_lineno, |
| 26 | "rst-source!" => \$description_is_rst, |
| 27 | "dir=s" => \$prefix, |
| 28 | 'help|?' => \$help, |
| 29 | man => \$man |
| 30 | ) or pod2usage(2); |
| 31 | |
| 32 | pod2usage(1) if $help; |
| 33 | pod2usage(-exitstatus => 0, -verbose => 2) if $man; |
| 34 | |
| 35 | pod2usage(2) if (scalar @ARGV < 1 || @ARGV > 2); |
| 36 | |
| 37 | my ($cmd, $arg) = @ARGV; |
| 38 | |
| 39 | pod2usage(2) if ($cmd ne "search" && $cmd ne "rest" && $cmd ne "validate"); |
| 40 | pod2usage(2) if ($cmd eq "search" && !$arg); |
| 41 | |
| 42 | require Data::Dumper if ($debug); |
| 43 | |
| 44 | my %data; |
| 45 | my %symbols; |
| 46 | |
| 47 | # |
| 48 | # Displays an error message, printing file name and line |
| 49 | # |
| 50 | sub parse_error($$$$) { |
| 51 | my ($file, $ln, $msg, $data) = @_; |
| 52 | |
| 53 | $data =~ s/\s+$/\n/; |
| 54 | |
| 55 | print STDERR "Warning: file $file#$ln:\n\t$msg"; |
| 56 | |
| 57 | if ($data ne "") { |
| 58 | print STDERR ". Line\n\t\t$data"; |
| 59 | } else { |
| 60 | print STDERR "\n"; |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | # |
| 65 | # Parse an ABI file, storing its contents at %data |
| 66 | # |
| 67 | sub parse_abi { |
| 68 | my $file = $File::Find::name; |
| 69 | |
| 70 | my $mode = (stat($file))[2]; |
| 71 | return if ($mode & S_IFDIR); |
| 72 | return if ($file =~ m,/README,); |
| 73 | |
| 74 | my $name = $file; |
| 75 | $name =~ s,.*/,,; |
| 76 | |
| 77 | my $fn = $file; |
| 78 | $fn =~ s,Documentation/ABI/,,; |
| 79 | |
| 80 | my $nametag = "File $fn"; |
| 81 | $data{$nametag}->{what} = "File $name"; |
| 82 | $data{$nametag}->{type} = "File"; |
| 83 | $data{$nametag}->{file} = $name; |
| 84 | $data{$nametag}->{filepath} = $file; |
| 85 | $data{$nametag}->{is_file} = 1; |
| 86 | $data{$nametag}->{line_no} = 1; |
| 87 | |
| 88 | my $type = $file; |
| 89 | $type =~ s,.*/(.*)/.*,$1,; |
| 90 | |
| 91 | my $what; |
| 92 | my $new_what; |
| 93 | my $tag = ""; |
| 94 | my $ln; |
| 95 | my $xrefs; |
| 96 | my $space; |
| 97 | my @labels; |
| 98 | my $label = ""; |
| 99 | |
| 100 | print STDERR "Opening $file\n" if ($debug > 1); |
| 101 | open IN, $file; |
| 102 | while(<IN>) { |
| 103 | $ln++; |
| 104 | if (m/^(\S+)(:\s*)(.*)/i) { |
| 105 | my $new_tag = lc($1); |
| 106 | my $sep = $2; |
| 107 | my $content = $3; |
| 108 | |
| 109 | if (!($new_tag =~ m/(what|where|date|kernelversion|contact|description|users)/)) { |
| 110 | if ($tag eq "description") { |
| 111 | # New "tag" is actually part of |
| 112 | # description. Don't consider it a tag |
| 113 | $new_tag = ""; |
| 114 | } elsif ($tag ne "") { |
| 115 | parse_error($file, $ln, "tag '$tag' is invalid", $_); |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | # Invalid, but it is a common mistake |
| 120 | if ($new_tag eq "where") { |
| 121 | parse_error($file, $ln, "tag 'Where' is invalid. Should be 'What:' instead", ""); |
| 122 | $new_tag = "what"; |
| 123 | } |
| 124 | |
| 125 | if ($new_tag =~ m/what/) { |
| 126 | $space = ""; |
| 127 | $content =~ s/[,.;]$//; |
| 128 | |
| 129 | push @{$symbols{$content}->{file}}, " $file:" . ($ln - 1); |
| 130 | |
| 131 | if ($tag =~ m/what/) { |
| 132 | $what .= ", " . $content; |
| 133 | } else { |
| 134 | if ($what) { |
| 135 | parse_error($file, $ln, "What '$what' doesn't have a description", "") if (!$data{$what}->{description}); |
| 136 | |
| 137 | foreach my $w(split /, /, $what) { |
| 138 | $symbols{$w}->{xref} = $what; |
| 139 | }; |
| 140 | } |
| 141 | |
| 142 | $what = $content; |
| 143 | $label = $content; |
| 144 | $new_what = 1; |
| 145 | } |
| 146 | push @labels, [($content, $label)]; |
| 147 | $tag = $new_tag; |
| 148 | |
| 149 | push @{$data{$nametag}->{symbols}}, $content if ($data{$nametag}->{what}); |
| 150 | next; |
| 151 | } |
| 152 | |
| 153 | if ($tag ne "" && $new_tag) { |
| 154 | $tag = $new_tag; |
| 155 | |
| 156 | if ($new_what) { |
| 157 | @{$data{$what}->{label_list}} = @labels if ($data{$nametag}->{what}); |
| 158 | @labels = (); |
| 159 | $label = ""; |
| 160 | $new_what = 0; |
| 161 | |
| 162 | $data{$what}->{type} = $type; |
| 163 | if (!defined($data{$what}->{file})) { |
| 164 | $data{$what}->{file} = $name; |
| 165 | $data{$what}->{filepath} = $file; |
| 166 | } else { |
| 167 | if ($name ne $data{$what}->{file}) { |
| 168 | $data{$what}->{file} .= " " . $name; |
| 169 | $data{$what}->{filepath} .= " " . $file; |
| 170 | } |
| 171 | } |
| 172 | print STDERR "\twhat: $what\n" if ($debug > 1); |
| 173 | $data{$what}->{line_no} = $ln; |
| 174 | } else { |
| 175 | $data{$what}->{line_no} = $ln if (!defined($data{$what}->{line_no})); |
| 176 | } |
| 177 | |
| 178 | if (!$what) { |
| 179 | parse_error($file, $ln, "'What:' should come first:", $_); |
| 180 | next; |
| 181 | } |
| 182 | if ($new_tag eq "description") { |
| 183 | $sep =~ s,:, ,; |
| 184 | $content = ' ' x length($new_tag) . $sep . $content; |
| 185 | while ($content =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {} |
| 186 | if ($content =~ m/^(\s*)(\S.*)$/) { |
| 187 | # Preserve initial spaces for the first line |
| 188 | $space = $1; |
| 189 | $content = "$2\n"; |
| 190 | $data{$what}->{$tag} .= $content; |
| 191 | } else { |
| 192 | undef($space); |
| 193 | } |
| 194 | |
| 195 | } else { |
| 196 | $data{$what}->{$tag} = $content; |
| 197 | } |
| 198 | next; |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | # Store any contents before tags at the database |
| 203 | if (!$tag && $data{$nametag}->{what}) { |
| 204 | $data{$nametag}->{description} .= $_; |
| 205 | next; |
| 206 | } |
| 207 | |
| 208 | if ($tag eq "description") { |
| 209 | my $content = $_; |
| 210 | while ($content =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {} |
| 211 | if (m/^\s*\n/) { |
| 212 | $data{$what}->{$tag} .= "\n"; |
| 213 | next; |
| 214 | } |
| 215 | |
| 216 | if (!defined($space)) { |
| 217 | # Preserve initial spaces for the first line |
| 218 | if ($content =~ m/^(\s*)(\S.*)$/) { |
| 219 | $space = $1; |
| 220 | $content = "$2\n"; |
| 221 | } |
| 222 | } else { |
| 223 | $space = "" if (!($content =~ s/^($space)//)); |
| 224 | } |
| 225 | $data{$what}->{$tag} .= $content; |
| 226 | |
| 227 | next; |
| 228 | } |
| 229 | if (m/^\s*(.*)/) { |
| 230 | $data{$what}->{$tag} .= "\n$1"; |
| 231 | $data{$what}->{$tag} =~ s/\n+$//; |
| 232 | next; |
| 233 | } |
| 234 | |
| 235 | # Everything else is error |
| 236 | parse_error($file, $ln, "Unexpected content", $_); |
| 237 | } |
| 238 | $data{$nametag}->{description} =~ s/^\n+// if ($data{$nametag}->{description}); |
| 239 | if ($what) { |
| 240 | parse_error($file, $ln, "What '$what' doesn't have a description", "") if (!$data{$what}->{description}); |
| 241 | |
| 242 | foreach my $w(split /, /,$what) { |
| 243 | $symbols{$w}->{xref} = $what; |
| 244 | }; |
| 245 | } |
| 246 | close IN; |
| 247 | } |
| 248 | |
| 249 | sub create_labels { |
| 250 | my %labels; |
| 251 | |
| 252 | foreach my $what (keys %data) { |
| 253 | next if ($data{$what}->{file} eq "File"); |
| 254 | |
| 255 | foreach my $p (@{$data{$what}->{label_list}}) { |
| 256 | my ($content, $label) = @{$p}; |
| 257 | $label = "abi_" . $label . " "; |
| 258 | $label =~ tr/A-Z/a-z/; |
| 259 | |
| 260 | # Convert special chars to "_" |
| 261 | $label =~s/([\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\xff])/_/g; |
| 262 | $label =~ s,_+,_,g; |
| 263 | $label =~ s,_$,,; |
| 264 | |
| 265 | # Avoid duplicated labels |
| 266 | while (defined($labels{$label})) { |
| 267 | my @chars = ("A".."Z", "a".."z"); |
| 268 | $label .= $chars[rand @chars]; |
| 269 | } |
| 270 | $labels{$label} = 1; |
| 271 | |
| 272 | $data{$what}->{label} = $label; |
| 273 | |
| 274 | # only one label is enough |
| 275 | last; |
| 276 | } |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | # |
| 281 | # Outputs the book on ReST format |
| 282 | # |
| 283 | |
| 284 | # \b doesn't work well with paths. So, we need to define something else: |
| 285 | # Boundaries are punct characters, spaces and end-of-line |
| 286 | my $start = qr {(^|\s|\() }x; |
| 287 | my $bondary = qr { ([,.:;\)\s]|\z) }x; |
| 288 | my $xref_match = qr { $start(\/(sys|config|proc|dev|kvd)\/[^,.:;\)\s]+)$bondary }x; |
| 289 | my $symbols = qr { ([\x01-\x08\x0e-\x1f\x21-\x2f\x3a-\x40\x7b-\xff]) }x; |
| 290 | |
| 291 | sub output_rest { |
| 292 | create_labels(); |
| 293 | |
| 294 | my $part = ""; |
| 295 | |
| 296 | foreach my $what (sort { |
| 297 | ($data{$a}->{type} eq "File") cmp ($data{$b}->{type} eq "File") || |
| 298 | $a cmp $b |
| 299 | } keys %data) { |
| 300 | my $type = $data{$what}->{type}; |
| 301 | |
| 302 | my @file = split / /, $data{$what}->{file}; |
| 303 | my @filepath = split / /, $data{$what}->{filepath}; |
| 304 | |
| 305 | if ($enable_lineno) { |
| 306 | printf "#define LINENO %s%s#%s\n\n", |
| 307 | $prefix, $file[0], |
| 308 | $data{$what}->{line_no}; |
| 309 | } |
| 310 | |
| 311 | my $w = $what; |
| 312 | |
| 313 | if ($type ne "File") { |
| 314 | my $cur_part = $what; |
| 315 | if ($what =~ '/') { |
| 316 | if ($what =~ m#^(\/?(?:[\w\-]+\/?){1,2})#) { |
| 317 | $cur_part = "Symbols under $1"; |
| 318 | $cur_part =~ s,/$,,; |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | if ($cur_part ne "" && $part ne $cur_part) { |
| 323 | $part = $cur_part; |
| 324 | my $bar = $part; |
| 325 | $bar =~ s/./-/g; |
| 326 | print "$part\n$bar\n\n"; |
| 327 | } |
| 328 | |
| 329 | printf ".. _%s:\n\n", $data{$what}->{label}; |
| 330 | |
| 331 | my @names = split /, /,$w; |
| 332 | my $len = 0; |
| 333 | |
| 334 | foreach my $name (@names) { |
| 335 | $name =~ s/$symbols/\\$1/g; |
| 336 | $name = "**$name**"; |
| 337 | $len = length($name) if (length($name) > $len); |
| 338 | } |
| 339 | |
| 340 | print "+-" . "-" x $len . "-+\n"; |
| 341 | foreach my $name (@names) { |
| 342 | printf "| %s", $name . " " x ($len - length($name)) . " |\n"; |
| 343 | print "+-" . "-" x $len . "-+\n"; |
| 344 | } |
| 345 | |
| 346 | print "\n"; |
| 347 | } |
| 348 | |
| 349 | for (my $i = 0; $i < scalar(@filepath); $i++) { |
| 350 | my $path = $filepath[$i]; |
| 351 | my $f = $file[$i]; |
| 352 | |
| 353 | $path =~ s,.*/(.*/.*),$1,;; |
| 354 | $path =~ s,[/\-],_,g;; |
| 355 | my $fileref = "abi_file_".$path; |
| 356 | |
| 357 | if ($type eq "File") { |
| 358 | print ".. _$fileref:\n\n"; |
| 359 | } else { |
| 360 | print "Defined on file :ref:`$f <$fileref>`\n\n"; |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | if ($type eq "File") { |
| 365 | my $bar = $w; |
| 366 | $bar =~ s/./-/g; |
| 367 | print "$w\n$bar\n\n"; |
| 368 | } |
| 369 | |
| 370 | my $desc = ""; |
| 371 | $desc = $data{$what}->{description} if (defined($data{$what}->{description})); |
| 372 | $desc =~ s/\s+$/\n/; |
| 373 | |
| 374 | if (!($desc =~ /^\s*$/)) { |
| 375 | if ($description_is_rst) { |
| 376 | # Remove title markups from the description |
| 377 | # Having titles inside ABI files will only work if extra |
| 378 | # care would be taken in order to strictly follow the same |
| 379 | # level order for each markup. |
| 380 | $desc =~ s/\n[\-\*\=\^\~]+\n/\n\n/g; |
| 381 | |
| 382 | # Enrich text by creating cross-references |
| 383 | |
| 384 | my $new_desc = ""; |
| 385 | open(my $fh, "+<", \$desc); |
| 386 | while (my $d = <$fh>) { |
| 387 | $d =~ s,Documentation/(?!devicetree)(\S+)\.rst,:doc:`/$1`,g; |
| 388 | |
| 389 | my @matches = $d =~ m,Documentation/ABI/([\w\/\-]+),g; |
| 390 | foreach my $f (@matches) { |
| 391 | my $xref = $f; |
| 392 | my $path = $f; |
| 393 | $path =~ s,.*/(.*/.*),$1,;; |
| 394 | $path =~ s,[/\-],_,g;; |
| 395 | $xref .= " <abi_file_" . $path . ">"; |
| 396 | $d =~ s,\bDocumentation/ABI/$f\b,:ref:`$xref`,g; |
| 397 | } |
| 398 | |
| 399 | # Seek for cross reference symbols like /sys/... |
| 400 | @matches = $d =~ m/$xref_match/g; |
| 401 | |
| 402 | foreach my $s (@matches) { |
| 403 | next if (!($s =~ m,/,)); |
| 404 | if (defined($data{$s}) && defined($data{$s}->{label})) { |
| 405 | my $xref = $s; |
| 406 | |
| 407 | $xref =~ s/$symbols/\\$1/g; |
| 408 | $xref = ":ref:`$xref <" . $data{$s}->{label} . ">`"; |
| 409 | |
| 410 | $d =~ s,$start$s$bondary,$1$xref$2,g; |
| 411 | } |
| 412 | } |
| 413 | $new_desc .= $d; |
| 414 | } |
| 415 | close $fh; |
| 416 | |
| 417 | |
| 418 | print "$new_desc\n\n"; |
| 419 | } else { |
| 420 | $desc =~ s/^\s+//; |
| 421 | |
| 422 | # Remove title markups from the description, as they won't work |
| 423 | $desc =~ s/\n[\-\*\=\^\~]+\n/\n\n/g; |
| 424 | |
| 425 | if ($desc =~ m/\:\n/ || $desc =~ m/\n[\t ]+/ || $desc =~ m/[\x00-\x08\x0b-\x1f\x7b-\xff]/) { |
| 426 | # put everything inside a code block |
| 427 | $desc =~ s/\n/\n /g; |
| 428 | |
| 429 | print "::\n\n"; |
| 430 | print " $desc\n\n"; |
| 431 | } else { |
| 432 | # Escape any special chars from description |
| 433 | $desc =~s/([\x00-\x08\x0b-\x1f\x21-\x2a\x2d\x2f\x3c-\x40\x5c\x5e-\x60\x7b-\xff])/\\$1/g; |
| 434 | print "$desc\n\n"; |
| 435 | } |
| 436 | } |
| 437 | } else { |
| 438 | print "DESCRIPTION MISSING for $what\n\n" if (!$data{$what}->{is_file}); |
| 439 | } |
| 440 | |
| 441 | if ($data{$what}->{symbols}) { |
| 442 | printf "Has the following ABI:\n\n"; |
| 443 | |
| 444 | foreach my $content(@{$data{$what}->{symbols}}) { |
| 445 | my $label = $data{$symbols{$content}->{xref}}->{label}; |
| 446 | |
| 447 | # Escape special chars from content |
| 448 | $content =~s/([\x00-\x1f\x21-\x2f\x3a-\x40\x7b-\xff])/\\$1/g; |
| 449 | |
| 450 | print "- :ref:`$content <$label>`\n\n"; |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | if (defined($data{$what}->{users})) { |
| 455 | my $users = $data{$what}->{users}; |
| 456 | |
| 457 | $users =~ s/\n/\n\t/g; |
| 458 | printf "Users:\n\t%s\n\n", $users if ($users ne ""); |
| 459 | } |
| 460 | |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | # |
| 465 | # Searches for ABI symbols |
| 466 | # |
| 467 | sub search_symbols { |
| 468 | foreach my $what (sort keys %data) { |
| 469 | next if (!($what =~ m/($arg)/)); |
| 470 | |
| 471 | my $type = $data{$what}->{type}; |
| 472 | next if ($type eq "File"); |
| 473 | |
| 474 | my $file = $data{$what}->{filepath}; |
| 475 | |
| 476 | my $bar = $what; |
| 477 | $bar =~ s/./-/g; |
| 478 | |
| 479 | print "\n$what\n$bar\n\n"; |
| 480 | |
| 481 | my $kernelversion = $data{$what}->{kernelversion} if (defined($data{$what}->{kernelversion})); |
| 482 | my $contact = $data{$what}->{contact} if (defined($data{$what}->{contact})); |
| 483 | my $users = $data{$what}->{users} if (defined($data{$what}->{users})); |
| 484 | my $date = $data{$what}->{date} if (defined($data{$what}->{date})); |
| 485 | my $desc = $data{$what}->{description} if (defined($data{$what}->{description})); |
| 486 | |
| 487 | $kernelversion =~ s/^\s+// if ($kernelversion); |
| 488 | $contact =~ s/^\s+// if ($contact); |
| 489 | if ($users) { |
| 490 | $users =~ s/^\s+//; |
| 491 | $users =~ s/\n//g; |
| 492 | } |
| 493 | $date =~ s/^\s+// if ($date); |
| 494 | $desc =~ s/^\s+// if ($desc); |
| 495 | |
| 496 | printf "Kernel version:\t\t%s\n", $kernelversion if ($kernelversion); |
| 497 | printf "Date:\t\t\t%s\n", $date if ($date); |
| 498 | printf "Contact:\t\t%s\n", $contact if ($contact); |
| 499 | printf "Users:\t\t\t%s\n", $users if ($users); |
| 500 | print "Defined on file(s):\t$file\n\n"; |
| 501 | print "Description:\n\n$desc"; |
| 502 | } |
| 503 | } |
| 504 | |
| 505 | # Ensure that the prefix will always end with a slash |
| 506 | # While this is not needed for find, it makes the patch nicer |
| 507 | # with --enable-lineno |
| 508 | $prefix =~ s,/?$,/,; |
| 509 | |
| 510 | # |
| 511 | # Parses all ABI files located at $prefix dir |
| 512 | # |
| 513 | find({wanted =>\&parse_abi, no_chdir => 1}, $prefix); |
| 514 | |
| 515 | print STDERR Data::Dumper->Dump([\%data], [qw(*data)]) if ($debug); |
| 516 | |
| 517 | # |
| 518 | # Handles the command |
| 519 | # |
| 520 | if ($cmd eq "search") { |
| 521 | search_symbols; |
| 522 | } else { |
| 523 | if ($cmd eq "rest") { |
| 524 | output_rest; |
| 525 | } |
| 526 | |
| 527 | # Warn about duplicated ABI entries |
| 528 | foreach my $what(sort keys %symbols) { |
| 529 | my @files = @{$symbols{$what}->{file}}; |
| 530 | |
| 531 | next if (scalar(@files) == 1); |
| 532 | |
| 533 | printf STDERR "Warning: $what is defined %d times: @files\n", |
| 534 | scalar(@files); |
| 535 | } |
| 536 | } |
| 537 | |
| 538 | __END__ |
| 539 | |
| 540 | =head1 NAME |
| 541 | |
| 542 | abi_book.pl - parse the Linux ABI files and produce a ReST book. |
| 543 | |
| 544 | =head1 SYNOPSIS |
| 545 | |
| 546 | B<abi_book.pl> [--debug] [--enable-lineno] [--man] [--help] |
| 547 | [--(no-)rst-source] [--dir=<dir>] <COMAND> [<ARGUMENT>] |
| 548 | |
| 549 | Where <COMMAND> can be: |
| 550 | |
| 551 | =over 8 |
| 552 | |
| 553 | B<search> [SEARCH_REGEX] - search for [SEARCH_REGEX] inside ABI |
| 554 | |
| 555 | B<rest> - output the ABI in ReST markup language |
| 556 | |
| 557 | B<validate> - validate the ABI contents |
| 558 | |
| 559 | =back |
| 560 | |
| 561 | =head1 OPTIONS |
| 562 | |
| 563 | =over 8 |
| 564 | |
| 565 | =item B<--dir> |
| 566 | |
| 567 | Changes the location of the ABI search. By default, it uses |
| 568 | the Documentation/ABI directory. |
| 569 | |
| 570 | =item B<--rst-source> and B<--no-rst-source> |
| 571 | |
| 572 | The input file may be using ReST syntax or not. Those two options allow |
| 573 | selecting between a rst-compliant source ABI (--rst-source), or a |
| 574 | plain text that may be violating ReST spec, so it requres some escaping |
| 575 | logic (--no-rst-source). |
| 576 | |
| 577 | =item B<--enable-lineno> |
| 578 | |
| 579 | Enable output of #define LINENO lines. |
| 580 | |
| 581 | =item B<--debug> |
| 582 | |
| 583 | Put the script in verbose mode, useful for debugging. Can be called multiple |
| 584 | times, to increase verbosity. |
| 585 | |
| 586 | =item B<--help> |
| 587 | |
| 588 | Prints a brief help message and exits. |
| 589 | |
| 590 | =item B<--man> |
| 591 | |
| 592 | Prints the manual page and exits. |
| 593 | |
| 594 | =back |
| 595 | |
| 596 | =head1 DESCRIPTION |
| 597 | |
| 598 | Parse the Linux ABI files from ABI DIR (usually located at Documentation/ABI), |
| 599 | allowing to search for ABI symbols or to produce a ReST book containing |
| 600 | the Linux ABI documentation. |
| 601 | |
| 602 | =head1 EXAMPLES |
| 603 | |
| 604 | Search for all stable symbols with the word "usb": |
| 605 | |
| 606 | =over 8 |
| 607 | |
| 608 | $ scripts/get_abi.pl search usb --dir Documentation/ABI/stable |
| 609 | |
| 610 | =back |
| 611 | |
| 612 | Search for all symbols that match the regex expression "usb.*cap": |
| 613 | |
| 614 | =over 8 |
| 615 | |
| 616 | $ scripts/get_abi.pl search usb.*cap |
| 617 | |
| 618 | =back |
| 619 | |
| 620 | Output all obsoleted symbols in ReST format |
| 621 | |
| 622 | =over 8 |
| 623 | |
| 624 | $ scripts/get_abi.pl rest --dir Documentation/ABI/obsolete |
| 625 | |
| 626 | =back |
| 627 | |
| 628 | =head1 BUGS |
| 629 | |
| 630 | Report bugs to Mauro Carvalho Chehab <mchehab+samsung@kernel.org> |
| 631 | |
| 632 | =head1 COPYRIGHT |
| 633 | |
| 634 | Copyright (c) 2016-2019 by Mauro Carvalho Chehab <mchehab+samsung@kernel.org>. |
| 635 | |
| 636 | License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>. |
| 637 | |
| 638 | This is free software: you are free to change and redistribute it. |
| 639 | There is NO WARRANTY, to the extent permitted by law. |
| 640 | |
| 641 | =cut |