| 1 | # ========== Copyright Header Begin ========================================== |
| 2 | # |
| 3 | # OpenSPARC T2 Processor File: Section.pm |
| 4 | # Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved |
| 5 | # 4150 Network Circle, Santa Clara, California 95054, U.S.A. |
| 6 | # |
| 7 | # * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 8 | # |
| 9 | # This program is free software; you can redistribute it and/or modify |
| 10 | # it under the terms of the GNU General Public License as published by |
| 11 | # the Free Software Foundation; version 2 of the License. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program; if not, write to the Free Software |
| 20 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | # |
| 22 | # For the avoidance of doubt, and except that if any non-GPL license |
| 23 | # choice is available it will apply instead, Sun elects to use only |
| 24 | # the General Public License version 2 (GPLv2) at this time for any |
| 25 | # software where a choice of GPL license versions is made |
| 26 | # available with the language indicating that GPLv2 or any later version |
| 27 | # may be used, or where a choice of which version of the GPL is applied is |
| 28 | # otherwise unspecified. |
| 29 | # |
| 30 | # Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 31 | # CA 95054 USA or visit www.sun.com if you need additional information or |
| 32 | # have any questions. |
| 33 | # |
| 34 | # ========== Copyright Header End ============================================ |
| 35 | # -*- perl -*- |
| 36 | |
| 37 | package Midas::Section; |
| 38 | use strict; |
| 39 | |
| 40 | use File::Spec; |
| 41 | use File::Copy; |
| 42 | use File::Basename; |
| 43 | use Carp; |
| 44 | |
| 45 | use Midas::Command; |
| 46 | use Midas::Configure; |
| 47 | use Midas::Paths; |
| 48 | use Midas::Preprocess ':internals'; |
| 49 | use Midas::State; |
| 50 | use Midas::Globals; |
| 51 | use Midas::Source; |
| 52 | use Midas::Application; |
| 53 | use Midas::Error; |
| 54 | use Midas::Segment; |
| 55 | |
| 56 | use TRELoad 'BitFieldTie'; |
| 57 | |
| 58 | use fields qw( |
| 59 | name |
| 60 | |
| 61 | seg_attrs |
| 62 | link_attrs |
| 63 | |
| 64 | files |
| 65 | |
| 66 | srcfile |
| 67 | srcline |
| 68 | srcfilestop |
| 69 | srclinestop |
| 70 | |
| 71 | args |
| 72 | |
| 73 | appobj |
| 74 | |
| 75 | ); |
| 76 | |
| 77 | require Exporter; |
| 78 | our @ISA = qw(Exporter); |
| 79 | our @EXPORT = qw(init_section); |
| 80 | |
| 81 | our $Num = 0; |
| 82 | |
| 83 | ############################################################################## |
| 84 | |
| 85 | sub init_section { |
| 86 | $Num = 0; |
| 87 | } |
| 88 | |
| 89 | ############################################################################## |
| 90 | |
| 91 | sub new { |
| 92 | my $this = shift; |
| 93 | my %args = @_; |
| 94 | |
| 95 | unless (ref $this) { |
| 96 | $this = fields::new($this); |
| 97 | } |
| 98 | |
| 99 | foreach my $key (keys %args) { |
| 100 | $this->{$key} = $args{$key}; |
| 101 | } |
| 102 | return $this; |
| 103 | } |
| 104 | |
| 105 | ############################################################################## |
| 106 | |
| 107 | sub new_from_line { |
| 108 | my $class = shift; |
| 109 | my $startline = shift; |
| 110 | my $fh = shift; |
| 111 | my $srcfile = shift; |
| 112 | my $srcline = shift; |
| 113 | my $appobj = shift; |
| 114 | |
| 115 | my $srcfile_start = $srcfile; |
| 116 | my $srcline_start = $srcline; |
| 117 | |
| 118 | local ($_); |
| 119 | $_ = $startline; |
| 120 | |
| 121 | |
| 122 | my $mmu = $STATE->get_mmu(); |
| 123 | |
| 124 | |
| 125 | fatal "Badly formatted SECTION line=$srcline, file=$srcfile:\n$_", |
| 126 | M_SECSYNTAX unless /^\s*SECTION\s*(\S+)\s*(.*)\s*$/; |
| 127 | |
| 128 | my $secname = $1; |
| 129 | my @secargs = split ',', $2; |
| 130 | |
| 131 | my $link_attrs; |
| 132 | |
| 133 | |
| 134 | my $section_args = {}; |
| 135 | foreach my $secarg (@secargs) { |
| 136 | $secarg =~ s/\s+//g; |
| 137 | if($secarg =~ /(\S+)=(\S+)/) { |
| 138 | $section_args->{lc $1} = $2; |
| 139 | } elsif($secarg =~ /(\S+)/) { |
| 140 | $section_args->{lc $1} = 1; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | if(keys %$section_args) { |
| 145 | $link_attrs = $mmu->create_attrs_object('link'); |
| 146 | $link_attrs->init_from_args($srcfile, $srcline, name => $secname, |
| 147 | %$section_args); |
| 148 | } |
| 149 | |
| 150 | |
| 151 | my $name = lc $secname; |
| 152 | $name =~ s/^\.//; |
| 153 | my $secnum = $Num++; |
| 154 | my $file = "sec${secnum}.${name}.s"; |
| 155 | |
| 156 | $file = path_to_build_file $file; # in build_dir |
| 157 | |
| 158 | |
| 159 | (my $ofile = $file) =~ s/\.s$/.o/; |
| 160 | |
| 161 | my $source = Midas::Source::Assembly->new(sfile => $file, |
| 162 | ofile => $ofile, |
| 163 | fullsource => $file, |
| 164 | ); |
| 165 | |
| 166 | my %seg_hash = (); |
| 167 | foreach my $segment (Midas::Segment->all_names()) { |
| 168 | $seg_hash{$segment} = []; |
| 169 | } |
| 170 | |
| 171 | my $this = Midas::Section->new |
| 172 | ( |
| 173 | name => $secname, |
| 174 | args => $section_args, |
| 175 | seg_attrs => \%seg_hash, |
| 176 | link_attrs => defined $link_attrs ? [ $link_attrs ] : [], |
| 177 | files => [ $source ], |
| 178 | srcfile => $srcfile_start, |
| 179 | srcline => $srcline_start, |
| 180 | srcfilestop => $srcfile, |
| 181 | srclinestop => $srcline, |
| 182 | appobj => $appobj, |
| 183 | ); |
| 184 | |
| 185 | return $this; |
| 186 | |
| 187 | } |
| 188 | |
| 189 | ############################################################################## |
| 190 | |
| 191 | sub get_segment_attrs { |
| 192 | my $this = shift; |
| 193 | my $segment = shift; |
| 194 | return @{$this->{seg_attrs}{$segment}}; |
| 195 | } |
| 196 | |
| 197 | ############################################################################## |
| 198 | |
| 199 | sub add_attrs { |
| 200 | my $this = shift; |
| 201 | my $attrs = shift; |
| 202 | |
| 203 | if($attrs->{type} eq 'link') { |
| 204 | push @{$this->{link_attrs}}, $attrs; |
| 205 | } elsif(exists $this->{seg_attrs}{$attrs->{type}}) { |
| 206 | my $len = @{$this->{seg_attrs}{$attrs->{type}}}; |
| 207 | push @{$this->{seg_attrs}{$attrs->{type}}}, $attrs; |
| 208 | $attrs->unique_name($this->secname . "_$attrs->{type}_$len"); |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | ############################################################################## |
| 213 | |
| 214 | sub get_map_attrs { |
| 215 | my $this = shift; |
| 216 | my @attrs; |
| 217 | foreach my $seg (Midas::Segment->all_names()) { |
| 218 | push @attrs, $this->get_segment_attrs($seg); |
| 219 | } |
| 220 | return @attrs; |
| 221 | } |
| 222 | |
| 223 | ############################################################################## |
| 224 | |
| 225 | sub get_link_attrs { |
| 226 | my $this = shift; |
| 227 | return @{$this->{link_attrs}}; |
| 228 | } |
| 229 | |
| 230 | ############################################################################## |
| 231 | |
| 232 | sub print_debug { |
| 233 | my $this = shift; |
| 234 | |
| 235 | chat "Section $this->{name}\n", 3; |
| 236 | |
| 237 | foreach my $seg (Midas::Segment->all_names()) { |
| 238 | my $num = $this->get_segment_attrs($seg); |
| 239 | chat " num_$seg\t=$num\n", 3; |
| 240 | } |
| 241 | |
| 242 | |
| 243 | my $nl = $this->get_link_attrs(); |
| 244 | chat " num_link = $nl\n", 3; |
| 245 | |
| 246 | my @files = @{$this->{files}}; my $n_files = @files; |
| 247 | chat " FILES ($n_files)\n", 3; |
| 248 | foreach my $f (@files) { |
| 249 | chat " " . $f->debug_string . "\n", 3; |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | ############################################################################## |
| 254 | |
| 255 | # This function may be called from a child thread, sot it is important |
| 256 | # that it doesn't write any state (i.e., have any side-effects) |
| 257 | sub build { |
| 258 | my $this = shift; |
| 259 | foreach my $source (@{$this->{files}}) { |
| 260 | $source->build(); |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | ############################################################################# |
| 265 | |
| 266 | sub secname { |
| 267 | my $this = shift; |
| 268 | return lc $this->{name}; |
| 269 | } |
| 270 | |
| 271 | ############################################################################## |
| 272 | |
| 273 | sub preprocess_midas_directive { |
| 274 | my $this = shift; |
| 275 | my $line = shift; |
| 276 | |
| 277 | my $output = $line; |
| 278 | |
| 279 | |
| 280 | $output =~ s/(\$(\w+))/exists $ENV{$2} ? $ENV{$2} : $1/ge; |
| 281 | |
| 282 | return $output; |
| 283 | } |
| 284 | |
| 285 | ############################################################################## |
| 286 | |
| 287 | sub parse_midas_cc_line { |
| 288 | my $this = shift; |
| 289 | my $line = shift; |
| 290 | my $srcline = shift; |
| 291 | my $srcfile = shift; |
| 292 | |
| 293 | my ($file, $output, $args); |
| 294 | my $processed = $this->preprocess_midas_directive($line); |
| 295 | if($processed =~ /\bFILE\s*=\s*(\S+)/) { |
| 296 | $file = $1; |
| 297 | } |
| 298 | if($processed =~ /\bOUTPUT\s*=\s*(\S+)/) { |
| 299 | $output = $1; |
| 300 | } |
| 301 | if($processed =~ /\bARGS\s*=\s*(.*)$/) { |
| 302 | $args = $1; |
| 303 | } |
| 304 | |
| 305 | fatal "MIDAS_CC line does not contain FILE argument at line=$srcline, ". |
| 306 | "file=$srcfile\n", M_DIRECTIVESYNTAX unless defined $file; |
| 307 | |
| 308 | my $assemble = 0; |
| 309 | $assemble = 1 if defined $args && $args =~ /(\s|\A)-S(\s|\Z)/; |
| 310 | |
| 311 | my $sfile; |
| 312 | my $ofile; |
| 313 | |
| 314 | my $full_file = $file; |
| 315 | $file = basename $file; |
| 316 | |
| 317 | if($assemble) { |
| 318 | $sfile = $output; |
| 319 | if(not defined $output) { |
| 320 | if($file =~ /\.c$/) { |
| 321 | ($sfile = $file) =~ s/\.c$/.s/; |
| 322 | } else { |
| 323 | $sfile = $file . ".s"; |
| 324 | } |
| 325 | ($ofile = $sfile) =~ s/\.s$/.o/; |
| 326 | } elsif($sfile =~ /\.s$/) { |
| 327 | ($ofile = $sfile) =~ s/\.s$/.o/; |
| 328 | } elsif($sfile =~ /\.o$/) { |
| 329 | $ofile = $sfile; |
| 330 | $sfile =~ s/\.o$/.s/; |
| 331 | } else { |
| 332 | $ofile = $sfile . ".o"; |
| 333 | } |
| 334 | } else { |
| 335 | $ofile = $output; |
| 336 | if(not defined $output) { |
| 337 | if($file =~ /\.c$/) { |
| 338 | ($ofile = $file) =~ s/\.c$/.o/; |
| 339 | } else { |
| 340 | $ofile = $file . ".o"; |
| 341 | } |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | my $rec = { |
| 346 | cfile => $file, |
| 347 | sfile => $sfile, |
| 348 | ofile => $ofile, |
| 349 | assemble => $assemble, |
| 350 | args => $args, |
| 351 | }; |
| 352 | |
| 353 | chat "LINE: $line\n", 3; |
| 354 | chat " cfile = $file\n", 3; |
| 355 | chat " sfile = $sfile\n", 3; |
| 356 | chat " ofile = $ofile\n", 3; |
| 357 | chat " assemble = $assemble\n", 3; |
| 358 | chat " args = $args\n", 3; |
| 359 | chat " fullsource = $full_file", 3; |
| 360 | |
| 361 | my $source = Midas::Source::C->new( |
| 362 | cfile => $file, |
| 363 | sfile => $sfile, |
| 364 | ofile => $ofile, |
| 365 | args => $args, |
| 366 | fullsource => $full_file, |
| 367 | ); |
| 368 | |
| 369 | $source->copy_to_build_dir(); |
| 370 | $source->process_source(); |
| 371 | |
| 372 | push @{$this->{files}}, $source; |
| 373 | |
| 374 | } |
| 375 | |
| 376 | ############################################################################## |
| 377 | |
| 378 | sub parse_midas_obj_line { |
| 379 | my $this = shift; |
| 380 | my $line = shift; |
| 381 | my $srcline = shift; |
| 382 | my $srcfile = shift; |
| 383 | |
| 384 | my $file; |
| 385 | my $processed = $this->preprocess_midas_directive($line); |
| 386 | if($processed =~ /\bFILE\s*=\s*(\S+)/) { |
| 387 | $file = $1; |
| 388 | } |
| 389 | |
| 390 | fatal "MIDAS_OBJ line does not contain FILE argument at line=$srcline, ". |
| 391 | "file=$srcfile\n", M_DIRECTIVESYNTAX unless defined $file; |
| 392 | |
| 393 | chat "LINE: $line\n", 3; |
| 394 | chat " ofile = $file\n", 3; |
| 395 | |
| 396 | my $source = Midas::Source::Object->new( |
| 397 | ofile => $file, |
| 398 | fullsource => $file, |
| 399 | ); |
| 400 | |
| 401 | $source->copy_to_build_dir(); |
| 402 | $source->process_source(); |
| 403 | |
| 404 | push @{$this->{files}}, $source; |
| 405 | |
| 406 | } |
| 407 | |
| 408 | ############################################################################## |
| 409 | |
| 410 | sub parse_midas_lib_line { |
| 411 | my $this = shift; |
| 412 | my $line = shift; |
| 413 | my $srcline = shift; |
| 414 | my $srcfile = shift; |
| 415 | |
| 416 | my $file; |
| 417 | my $processed = $this->preprocess_midas_directive($line); |
| 418 | if($processed =~ /\bFILE\s*=\s*(\S+)/) { |
| 419 | $file = $1; |
| 420 | } |
| 421 | |
| 422 | fatal "MIDAS_LIB line does not contain FILE argument at line=$srcline, ". |
| 423 | "file=$srcfile\n", M_DIRECTIVESYNTAX unless defined $file; |
| 424 | |
| 425 | chat "LINE: $line\n", 3; |
| 426 | chat " ofile = $file\n", 3; |
| 427 | |
| 428 | my $source = Midas::Source::Library->new( |
| 429 | ofile => $file, |
| 430 | fullsource => $file, |
| 431 | ); |
| 432 | |
| 433 | $source->copy_to_build_dir(); |
| 434 | $source->process_source(); |
| 435 | |
| 436 | push @{$this->{files}}, $source; |
| 437 | |
| 438 | } |
| 439 | |
| 440 | ############################################################################## |
| 441 | |
| 442 | sub get_object_list { |
| 443 | my $this = shift; |
| 444 | |
| 445 | my @olist = |
| 446 | map { $_->get_object_file() } |
| 447 | grep { ! $_->is_library() } |
| 448 | @{$this->{files}}; |
| 449 | return @olist; |
| 450 | } |
| 451 | |
| 452 | ############################################################################## |
| 453 | |
| 454 | sub get_library_list { |
| 455 | my $this = shift; |
| 456 | |
| 457 | my @alist = |
| 458 | map { $_->get_object_file() } |
| 459 | grep { $_->is_library() } |
| 460 | @{$this->{files}}; |
| 461 | return @alist; |
| 462 | } |
| 463 | |
| 464 | ############################################################################## |
| 465 | |
| 466 | sub sanity_check { |
| 467 | my $this = shift; |
| 468 | |
| 469 | my $fline = "File=$this->{srcfile}, Line=$this->{srclinestop}"; |
| 470 | |
| 471 | my $error = 0; |
| 472 | my @messages; |
| 473 | |
| 474 | if(scalar($this->get_map_attrs()) == 0) { |
| 475 | my $message = "Section $this->{name} has no attr blocks!\n"; |
| 476 | $message .=" at $fline\n"; |
| 477 | push @messages, { message => $message, code => M_SECSYNTAX }; |
| 478 | } |
| 479 | |
| 480 | my %link_seg; |
| 481 | foreach my $link_attr ($this->get_link_attrs()) { |
| 482 | push @messages, $link_attr->sanity_check(); |
| 483 | |
| 484 | foreach my $seg (Midas::Segment->all_names()) { |
| 485 | $link_seg{$seg} = 0 unless exists $link_seg{$seg}; |
| 486 | $link_seg{$seg} ||= $link_attr->has_segment($seg); |
| 487 | } |
| 488 | } |
| 489 | |
| 490 | foreach my $attr ($this->get_map_attrs()) { |
| 491 | push @messages, $attr->sanity_check(); |
| 492 | } |
| 493 | |
| 494 | foreach my $seg (Midas::Segment->all_names()) { |
| 495 | my @seg_attrs = $this->get_segment_attrs($seg); |
| 496 | if(not $CONFIG{allow_empty_sections}) { |
| 497 | if($link_seg{$seg} and ! @seg_attrs) { |
| 498 | my $message = |
| 499 | "Section $this->{name} has ${seg}_va but no attr_${seg} ". |
| 500 | "blocks\n at $fline\n"; |
| 501 | push @messages, { message => $message, code => M_SECSYNTAX }; |
| 502 | } |
| 503 | } |
| 504 | foreach my $attr (@seg_attrs) { |
| 505 | my $attr_fline = $attr->get_fline(); |
| 506 | if(not $link_seg{$seg}) { |
| 507 | my $message = "Section $this->{name} has attr_$seg but no ${seg}_va\n". |
| 508 | " at $attr_fline\n"; |
| 509 | push @messages, { message => $message, code => M_SECSYNTAX }; |
| 510 | } |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | return @messages; |
| 515 | } |
| 516 | |
| 517 | ############################################################################## |
| 518 | |
| 519 | sub has_segment { |
| 520 | my $this = shift; |
| 521 | my $segment = shift; |
| 522 | return 1 if scalar $this->get_segment_attrs($segment); |
| 523 | return; |
| 524 | } |
| 525 | |
| 526 | ############################################################################## |
| 527 | |
| 528 | sub get_section_link_tag { |
| 529 | my $this = shift; |
| 530 | my @olist = $this->get_object_list(); |
| 531 | @olist = $this->get_library_list() unless @olist; |
| 532 | my $sectag = basename $olist[0], '.o', '.a'; |
| 533 | return $sectag; |
| 534 | } |
| 535 | |
| 536 | ############################################################################## |
| 537 | |
| 538 | sub get_segment_link_name { |
| 539 | my $this = shift; |
| 540 | my $segment = shift; |
| 541 | my $sectag = $this->get_section_link_tag(); |
| 542 | my $link_suffix = Midas::Segment->name2link_suffix($segment); |
| 543 | return "$sectag$link_suffix"; |
| 544 | } |
| 545 | |
| 546 | ############################################################################## |
| 547 | ############################################################################## |
| 548 | |
| 549 | |
| 550 | 1; |