gcc/vmsconfig.com

   1 $ !
   2 $ !     Set up to compile GCC on VMS.
   3 $ !
   4 $ ! Set the def dir to proper place for use in batch. Works for interactive too.
   5 $flnm = f$enviroment("PROCEDURE")     ! get current procedure name
   6 $set default 'f$parse(flnm,,,"DEVICE")''f$parse(flnm,,,"DIRECTORY")'
   7 $ !
   8 $set symbol/scope=(nolocal,noglobal)
   9 $if f$trnlnm("IFILE$").nes."" then close/noLog ifile$
  10 $ !
  11 $ echo = "write sys$output"
  12 $ !
  13 $ arch_indx = 1 + ((f$getsyi("CPU").ge.128).and.1)      ! vax==1, alpha==2
  14 $ arch = f$element(arch_indx,"|","|vax|alpha|")
  15 $ !
  16 $ if f$search("config.h") .nes. "" then delete config.h.*
  17 $ if arch .eqs. "vax"
  18 $ then
  19 $   copy [.config.'arch']xm-vms.h []config.h
  20 $   echo "Linked `config.h' to `[.config.''arch']xm-vms.h'."
  21 $else
  22 $   open/write cfile []config.h
  23 $   write cfile "#include "+"""config/"+arch+"/xm-"+arch+".h"+"""
  24 $   write cfile "#include "+"""config/"+arch+"/xm-vms.h"+"""
  25 $   close cfile
  26 $   echo "Created `config.h'."
  27 $ endif
  28 $ !
  29 $ if f$search("tconfig.h") .nes. "" then delete tconfig.h.*
  30 $ create []tconfig.h
  31 $DECK
  32 /* tconfig.h == config.h :: target and host configurations are the same */
  33 #include "config.h"
  34 $EOD
  35 $ echo "Created `tconfig.h'.
  36 $ !
  37 $ if f$search("hconfig.h") .nes. "" then delete hconfig.h.*
  38 $ create []hconfig.h
  39 $DECK
  40 /* hconfig.h == config.h :: host and target configurations are the same */
  41 #include "config.h"
  42 $EOD
  43 $ echo "Created `hconfig.h'.
  44 $ !
  45 $ if f$search("tm.h") .nes. "" then delete tm.h.*
  46 $ !
  47 $ edit/tpu/nojournal/nosection/nodisplay/command=sys$input -
  48         [.config.'arch']vms.h /output=[]tm.h
  49 $DECK
  50 !
  51 !  Copy file, changing lines of the form
  52 !       #include "vax/*"
  53 !  or
  54 !       #include "alpha/*"
  55 !  into
  56 !       #include "config-*"
  57 !
  58    file := CREATE_BUFFER("file", GET_INFO(COMMAND_LINE, "file_name"));
  59    targ := LINE_BEGIN & '#include' & SPAN(ASCII(32)+ASCII(9))
  60            & '"' & ('vax' | 'alpha') & '/';
  61    rang := CREATE_RANGE(BEGINNING_OF(file), END_OF(file));
  62    LOOP
  63       incl := SEARCH_QUIETLY(targ, FORWARD, EXACT, rang);
  64       EXITIF incl = 0;
  65       POSITION(BEGINNING_OF(incl));
  66       ERASE(incl);
  67       COPY_TEXT('#include "config-');
  68       rang := CREATE_RANGE(END_OF(incl), END_OF(file));
  69    ENDLOOP;
  70    WRITE_FILE(file, GET_INFO(COMMAND_LINE, "output_file"));
  71    QUIT
  72 $  EOD
  73 $ echo "Generated `tm.h' from `[.config.''arch']vms.h'."
  74 $ !
  75 $       !crude hack to allow compiling from [.cp] subdirectory
  76 $ if f$search("config-''arch'.h") .nes. "" then delete config-'arch'.h;*
  77 $ copy [.config.'arch']'arch'.h []config-'arch'.h
  78 $ echo "Linked `config-''arch'.h' to `[.config.''arch']''arch'.h' for `tm.h'."
  79 $ !
  80 $ call make_lang_incl "options.h"
  81 $ !
  82 $ call make_lang_incl "specs.h"
  83 $ !
  84 $ if arch .eqs. "vax"
  85 $ then
  86 $   if f$search("''arch'.md") .nes. "" then delete 'arch'.md;*
  87 $   copy [.config.'arch']'arch'.md []'arch'.md
  88 $   echo "Copied `''arch'.md' from `[.config.''arch']''arch'.md'."
  89 $ endif
  90 $ !
  91 $ if f$search("aux-output.c") .nes. "" then delete aux-output.c.*
  92 $ copy [.config.'arch']'arch'.c []aux-output.c
  93 $ echo "Linked `aux-output.c' to `[.config.''arch']''arch'.c'.
  94 $ !
  95 $ !
  96 $ !
  97 $ ! Create the file version.opt, which helps identify the executable.
  98 $ !
  99 $search version.c version_string,"="/match=and/output=t.tmp
 100 $open ifile$ t.tmp
 101 $read ifile$ line
 102 $close ifile$
 103 $delete t.tmp;
 104 $ijk=f$locate("""",line)+1
 105 $line=f$extract(ijk,f$length(line)-ijk,line)
 106 $ijk=f$locate("""",line)
 107 $line=f$extract(0,ijk,line)
 108 $ijk=f$locate("\n",line)
 109 $line=f$extract(0,ijk,line)
 110 $ !
 111 $elm=f$element(1," ",line)
 112 $ !
 113 $write_ident:
 114 $open/write ifile$ version.opt
 115 $write ifile$ "ident="+""""+elm+""""
 116 $close ifile$
 117 $purge version.opt
 118 $!
 119 $!
 120 $! create linker options files that lists all of the components for all
 121 $! possible compilers.  We do this by editing the file Makefile.in, and
 122 $! generating the relevant files from it.
 123 $!
 124 $!
 125 $! Make a copy of the makefile if the sources are on a disk that is NFS
 126 $!    mounted on a unix machine.
 127 $if f$search("Makefile.in").eqs."" .and. f$search("$M$akefile.in").nes."" -
 128         then copy $M$akefile.in Makefile.in
 129 $! This should be automated across all front-end subdirectories.
 130 $!    For now, it's hardcoded.
 131 $if f$search("[.cp]Makefile.in").eqs."" .and. f$search("[.cp]$M$akefile.in").nes."" -
 132         then copy [.cp]$M$akefile.in [.cp]Makefile.in
 133 $!
 134 $!
 135 $echo "Now processing Makefile.in to generate linker option files."
 136 $edit/TPU/noJournal/noSection/noDisplay/Command=sys$input: Makefile.in -
 137         /Start_Position=('arch_indx')           ! 1 for vax, 2 for alpha
 138 !!
 139 VARIABLE makefile_buf, opt_file_buf, complist_buf, extra_compilers; ! Globals.
 140 VARIABLE arch;          ! String 'vax' or 'alpha', set in configure_makefile().
 141
 142 !!
 143 PROCEDURE process_makefile( )
 144   !
 145   ! Interpret Makefile.in and subsidiary Make-lang.in templates.
 146   !
 147   LOCAL range1, cmark, makefilename;
 148
 149   makefilename    := GET_INFO (COMMAND_LINE, 'FILE_NAME'); ! "Makefile.in"
 150   makefile_buf    := CREATE_BUFFER ("makefile", makefilename);
 151   opt_file_buf    := CREATE_BUFFER ("opt_file");
 152   complist_buf    := CREATE_BUFFER ("complist");
 153   extra_compilers := CREATE_ARRAY;
 154   !
 155   SET (NO_WRITE, makefile_buf, ON);     ! Used as workspace; don't save it.
 156   SET (OUTPUT_FILE, complist_buf, "compilers.list");
 157   !
 158   ! Make some textual substitutions.
 159   !
 160   configure_makefile ();
 161   !
 162   ! Collect a list of supported compilers (``COMPILERS=xxx'' macro).
 163   !
 164   identify_compilers ();
 165   !
 166   ! Plus other known compilers described by Make-lang.in makefile fragments.
 167   ! Add new entries as needed; args are (target name, subdirectory name).
 168   !
 169   additional_compiler ("cc1plus", "cp");
 170   !
 171   WRITE_FILE (complist_buf);            ! Now save "compilers.list".
 172   !
 173   ! Add to this list, as required.  The file "Makefile.in" is searched for
 174   ! a tag that looks like "LINE_BEGIN + 'tag + (optional space) + "="".
 175   ! The contents are assumed to be a list of object files, and from this
 176   ! list a VMS linker options file is generated.
 177   !
 178   generate_option_file ("OBJS",      "=", "independent.opt");
 179   generate_option_file ("LIB2FUNCS", "=", "libgcc2.list");
 180   generate_option_file ("CXX_LIB2FUNCS", "=", "libgcc2-cxx.list");
 181   generate_option_file ("BC_ALL",    "=", "bc_all.list");
 182   generate_option_file ("BI_OBJ",    "=", "bi_all.opt");
 183   !
 184   ! Now change OBJS in the Makefile, so each language specific options file
 185   ! does not pick up all of the language independent files.
 186   !
 187   POSITION (BEGINNING_OF (makefile_buf));
 188   COPY_TEXT ("OBJS=");  ! New copy with empty value, seen before real OBJS.
 189   SPLIT_LINE;
 190   !
 191   ! Lastly, process each compiler-specific object dependency list.
 192   !
 193   POSITION (BEGINNING_OF (complist_buf));
 194   LOOP
 195     cmark := MARK (NONE);
 196     EXITIF (cmark = END_OF (complist_buf));
 197     ! The current line contains the name of a compiler target, such as "cc1".
 198     MESSAGE (CURRENT_LINE);     ! Give some interactive feedback.
 199     generate_option_file (CURRENT_LINE, ":", CURRENT_LINE + "-objs.opt");
 200     POSITION (cmark);
 201     MOVE_VERTICAL (1);          ! Go to the next line.
 202   ENDLOOP;
 203 ENDPROCEDURE; !process_makefile
 204 !!
 205
 206 PROCEDURE process_objc_lib( )
 207   !
 208   ! Interpret objc/Makefile, after finishing the top makefile.
 209   !
 210   ON_ERROR
 211     [TPU$_OPENIN]:
 212       MESSAGE ("Cannot load objc/Makefile for ""ObjClib""; skipping it.");
 213       RETURN;
 214   ENDON_ERROR;
 215
 216   ERASE (makefile_buf);                 !discard top Makefile
 217   POSITION (END_OF (makefile_buf));
 218   READ_FILE ("[.objc]Makefile");        !load objc one
 219   MESSAGE ("objclib");
 220   pat_replace (ASCII(9), " ");          !change any <tab> to <space>
 221   generate_option_file ("OBJC_O", "=", "objc-objs.opt");
 222   POSITION (BEGINNING_OF (makefile_buf));
 223   ! Join any continuation lines; we want the header list to be one line.
 224   pat_replace ("\" & LINE_END, );
 225   generate_option_file ("OBJC_H", "=", "objc-hdrs.list");
 226 ENDPROCEDURE; !process_objc_lib
 227 !!
 228
 229 PROCEDURE configure_makefile( )
 230   !
 231   ! Plug in some values normally handled by `configure'.  Rather than
 232   ! replacing the dummy entries, insert the real entries before them.
 233   !
 234   IF (GET_INFO (COMMAND_LINE, 'START_RECORD') <> 2) THEN
 235     arch := 'vax';
 236   ELSE
 237     arch := 'alpha';
 238   ENDIF;
 239   POSITION (BEGINNING_OF (makefile_buf));
 240   COPY_TEXT ("target=" + arch + "-vms");        SPLIT_LINE;
 241   COPY_TEXT ("out_file=aux-output.c");          SPLIT_LINE;     ! 'arch'/'arch'.c
 242   COPY_TEXT ("out_object_file=aux-output.o");   SPLIT_LINE;     ! aux-output.obj
 243   COPY_TEXT ("md_file=" + arch + ".md");        SPLIT_LINE;     ! 'arch'/'arch'.md
 244   COPY_TEXT ("tm_file=tm.h");                   SPLIT_LINE;     ! 'arch'/tm-vms.h
 245   pat_replace ("@" &
 246     SPAN("abcdefghijklmnopqrstuvwxyz_ABCDEFGHIJKLMNOPQRSTUVWXYZ#~0123456789")
 247                 & "@", );                       ! strip `configure' dummy values
 248 ENDPROCEDURE; !configure_makefile
 249 !!
 250
 251 PROCEDURE identify_compilers( )
 252   !
 253   ! Retrieve the list of supported compilers from Makefile.in, and put them
 254   ! into file "compilers.list", one per line, for subsequent access from DCL.
 255   !
 256   LOCAL range1;
 257
 258   ! Strip most comments from the makefile, to speed up subsequent processing.
 259   POSITION (BEGINNING_OF (makefile_buf));
 260   pat_replace (LINE_BEGIN & "#" & REMAIN & LINE_END, );
 261   pat_replace ("$(exeext)", );
 262   pat_replace ("@all_compilers@", );
 263 !#  ! Convert directory references to VMS syntax (actually, just strip it).
 264 !#  pat_replace (" $(srcdir)/", " ");
 265   ! Look up the ``COMPILERS=cc1 xyzzy'' Makefile macro and put
 266   ! its ``cc1 xyzzy'' value into the compilers buffer.
 267   POSITION (BEGINNING_OF (complist_buf));
 268 !#--at some point we may want to add this--
 269 !#  recursive_fetch_tag ("CCCP", "=");    ! Include the preprocessor.
 270 !#  POSITION (END_OF (complist_buf));
 271   recursive_fetch_tag ("COMPILERS", "=");
 272   ! Convert all spaces into newlines, then remove any blank lines.
 273   pat_replace (SPAN(" "), LINE_END);
 274   pat_replace (LINE_BEGIN & LINE_END, );
 275 ENDPROCEDURE; !identify_compilers
 276 !!
 277
 278 PROCEDURE additional_compiler( cname, subdir )
 279   !
 280   ! Load Make-lang.in for compiler CNAME from SUBDIR and append it to the
 281   ! end of Makefile.in's buffer.  Add CNAME to the "compilers.list" buffer.
 282   !
 283   ON_ERROR
 284     ! Don't abort if user removes the supporting subdirectory for a
 285     ! language she's not interested in.
 286     [TPU$_OPENIN]:
 287       MESSAGE ("Cannot load " + subdir + "/Make-lang.in for "
 288                + '"' + cname + '"' + "; skipping it.");
 289       RETURN;
 290   ENDON_ERROR;
 291
 292   POSITION (END_OF (makefile_buf));
 293   SPLIT_LINE;   ! Separate with a blank line.
 294   READ_FILE ("[." + subdir + "]Make-lang.in");  ! Load Makefile fragment.
 295   ! Make sure that $(xxx_OTH_SRCS) expands to empty string by renaming $(it)
 296   pat_replace ("_OTH_SRCS)", "_OTH_SRCS_dummy_)");
 297   ! Convert subdirectory references into VMS syntax.
 298   pat_replace ("$(srcdir)/" + subdir + "/", "[." + subdir + "]");
 299   ! Add this name to compilers.list.
 300   POSITION (END_OF (complist_buf));
 301   COPY_TEXT (cname);
 302   ! Make array entry indexed by compiler's file name; its value is arbitrary.
 303   extra_compilers{cname} := subdir;
 304 ENDPROCEDURE; !additional_compiler
 305 !!
 306
 307 PROCEDURE generate_option_file( tag_name, punct, outfile_name )
 308   !
 309   ! Produce a file listing the names of particular object files, for use
 310   ! as input to the linker and also for use in finding source names by
 311   ! make-cc1.com.  Generally, any name suffix will be suppressed.
 312   !
 313   LOCAL range1, range2;
 314
 315   POSITION (BEGINNING_OF (opt_file_buf));
 316   recursive_fetch_tag (tag_name, punct);
 317   ! First fix up for subdirectory/Make-lang.in.
 318   IF (pat_replace ("stamp-objlist" & (SPAN(" ")|LINE_END), " ") > 0) THEN
 319     recursive_fetch_tag ("stamp-objlist", ":");
 320   ENDIF;
 321   ! Now fix up a few things in the output buffer.
 322   pat_replace (("bytecode"|"Makefile") & (SPAN(" ")|LINE_END), " ");
 323 !#  FILL (CURRENT_BUFFER, " ", 1, 80, 0);       ! Condense things a bit.
 324   pat_replace ("." & ("o"|"c"|"y") & ((SPAN(" ")&LINE_END)|LINE_END), LINE_END);
 325   pat_replace ("." & ("o"|"c"|"y") & SPAN(" "), ",");
 326   pat_replace (".h" & (SPAN(" ")|LINE_END), ".h,");
 327   ! Remove trailing commas, if present.
 328   pat_replace ("," & ((SPAN(" ")&LINE_END)|LINE_END), LINE_END);
 329   ! Get rid of spaces and blank lines.
 330   pat_replace (SPAN(" "), LINE_END);
 331   pat_replace (LINE_BEGIN & LINE_END, );
 332   ! Second fix up for subdirectory/Make-lang.in;
 333   ! avoid "sticky defaults" when linker processes the resulting options file.
 334   IF (extra_compilers{outfile_name - "-objs.opt"} <> TPU$K_UNSPECIFIED) THEN
 335     POSITION (BEGINNING_OF (opt_file_buf));
 336     range1 := CREATE_RANGE (MARK (NONE), END_OF (CURRENT_BUFFER), NONE);
 337     LOOP
 338       range2 := SEARCH_QUIETLY (LINE_BEGIN | ",", FORWARD, EXACT, range1);
 339       EXITIF (range2 = 0);
 340       POSITION (BEGINNING_OF (range2));
 341       IF (CURRENT_CHARACTER = ",") THEN  MOVE_HORIZONTAL (1); ENDIF;
 342       ! If it's not already "[.subdir]name", explicitly make it "[]name".
 343       IF (CURRENT_CHARACTER <> "[") THEN  COPY_TEXT ("[]"); ENDIF;
 344       MOVE_HORIZONTAL (1);
 345       MODIFY_RANGE (range1, MARK (NONE), END_OF (range1));
 346     ENDLOOP;
 347   ENDIF;
 348   ! Now write the output file.
 349   SET (OUTPUT_FILE, opt_file_buf, outfile_name);
 350   WRITE_FILE (opt_file_buf);
 351   ERASE (opt_file_buf);         ! Clear buffer out for next opt_file pass.
 352 ENDPROCEDURE; !generate_option_file
 353 !!
 354
 355 PROCEDURE recursive_fetch_tag( tag_n, punct )
 356   !
 357   ! Look up TAG_N, copy it to OPT_FILE_BUF, and then translate any $(...)
 358   ! definitions that appear.  The translation is put at the current point.
 359   !
 360   LOCAL mark1, mark2, range1, tag_range, tag_string;
 361
 362   fetch_tag (tag_n, punct);
 363   ! Substitute any makefile symbols $(...).
 364   POSITION (BEGINNING_OF (CURRENT_BUFFER));
 365   LOOP
 366     range1 := SEARCH_QUIETLY ("$(" &
 367       SPAN("abcdefghijklmnopqrstuvwxyz_ABCDEFGHIJKLMNOPQRSTUVWXYZ#~0123456789")
 368                                    & ")", FORWARD, EXACT);
 369     EXITIF (range1 = 0);
 370     POSITION (BEGINNING_OF (range1));
 371     MOVE_HORIZONTAL (2);        ! Past opening "$(".
 372     mark1 := MARK (NONE);
 373     POSITION (END_OF (range1));
 374     MOVE_HORIZONTAL (-1);       ! In front of closing ")".
 375     mark2 := MARK (NONE);
 376     tag_range := CREATE_RANGE (mark1, mark2, NONE);
 377     POSITION (END_OF (range1));
 378     tag_string := STR (tag_range);
 379     ERASE (range1);
 380     fetch_tag (tag_string, "=");
 381     POSITION (BEGINNING_OF (CURRENT_BUFFER));
 382   ENDLOOP;
 383 ENDPROCEDURE; !recursive_fetch_tag
 384 !!
 385
 386 PROCEDURE fetch_tag( tag_n, punct )
 387   !
 388   ! Looks up the translation of a tag, and inserts it at the current location
 389   ! in the buffer.
 390   !
 391   LOCAL mark0, mark1, mark2, range2;
 392
 393   mark0 := MARK (NONE);     ! Remember where we started; restore before return.
 394   POSITION (BEGINNING_OF (makefile_buf));
 395   ! The tag definition always starts in the first column, and might have
 396   ! optional space(es) before "=" or ":" punctuation.
 397   range2 := SEARCH_QUIETLY (LINE_BEGIN & tag_n & ((SPAN(" ") & punct) | punct),
 398                             FORWARD, EXACT);
 399   IF (range2 = 0) THEN
 400     POSITION (mark0);
 401     RETURN;
 402   ENDIF;
 403   POSITION (END_OF (range2));
 404   MOVE_HORIZONTAL (1);          ! Move beyond "TAG=".
 405   mark1 := MARK (NONE);
 406   POSITION (BEGINNING_OF (range2));
 407   LOOP
 408     MOVE_VERTICAL (1);
 409     MOVE_HORIZONTAL (-2);
 410     EXITIF (CURRENT_CHARACTER <> "\");
 411     ERASE_CHARACTER (1);
 412     MOVE_HORIZONTAL (1);
 413   ENDLOOP;
 414   MOVE_HORIZONTAL (1);
 415   mark2 := MARK (NONE);
 416   range2 := CREATE_RANGE (mark1, mark2, NONE);
 417   POSITION (mark0);
 418   IF (LENGTH (range2) <> 0) THEN
 419     COPY_TEXT (range2);
 420   ENDIF;
 421 ENDPROCEDURE; !fetch_tag
 422 !!
 423
 424 PROCEDURE pat_replace( oldstring, newstring )
 425   !
 426   ! Replace all occurrences of a pattern.
 427   !
 428   LOCAL range1, range2, kill_it, count;
 429
 430   count := 0;
 431   kill_it := (GET_INFO (newstring, 'TYPE') = UNSPECIFIED);      ! Omitted arg.
 432   range1 := CREATE_RANGE (BEGINNING_OF (CURRENT_BUFFER),
 433                           END_OF (CURRENT_BUFFER), NONE);
 434   LOOP
 435     range2 := SEARCH_QUIETLY (oldstring, FORWARD, EXACT, range1);
 436     EXITIF (range2 = 0);
 437     count := count + 1;
 438     POSITION (BEGINNING_OF (range2));
 439     ERASE (range2);
 440     IF (newstring = LINE_END) THEN
 441       SPLIT_LINE;
 442     ELSE IF (NOT kill_it) THEN
 443       COPY_TEXT (newstring);
 444     ENDIF; ENDIF;
 445     MODIFY_RANGE (range1, MARK (NONE), END_OF (range1));
 446   ENDLOOP;
 447   RETURN count;
 448 ENDPROCEDURE; !pat_replace
 449 !!
 450
 451 !
 452 ! This is the main routine.
 453 !
 454 process_makefile ();
 455 process_objc_lib ();    !this uses a different makefile
 456 QUIT;   ! All done; don't write any modified buffers.
 457 !!
 458 $ echo ""
 459 $!
 460 $! Remove excessive versions of the option files...
 461 $!
 462 $ purge *.opt,*.list
 463 $!
 464 $!
 465 $!
 466 $ if f$search("config.status") .nes. "" then delete config.status.*
 467 $ create config.status
 468 $ open/append ifile$ config.status
 469 $ write ifile$ "Links are now set up for use with a ''arch' running VMS."
 470 $ close ifile$
 471 $ type config.status
 472 $ echo ""
 473 $!
 474 $ exit
 475 $
 476 $!
 477 $! Construct a header file based on subdirectory contents
 478 $!
 479 $make_lang_incl: subroutine
 480 $  if f$search(p1).nes."" then delete 'p1';*
 481 $  create 'p1'  !empty file with ordinary text-file attributes
 482 $  open/Append ifile$ 'p1'
 483 $  write ifile$ "/* ''p1' */"
 484 $  hfile = f$search("[]''p1'")
 485 $  topdir = f$parse(hfile,,,"DIRECTORY") - "]"
 486 $lang_incl_loop:
 487 $  hfile = f$search("[.*]lang-''p1'")
 488 $  if hfile.eqs."" then goto lang_incl_done
 489 $  dir = f$parse(hfile,,,"DIRECTORY") - "]"
 490 $! convert absolute path to relative one, yielding "[.subdir]"
 491 $  dir = "[" + f$edit(dir - topdir,"LOWERCASE") + "]"
 492 $  write ifile$ "#include ""''dir'lang-''p1'"""
 493 $  goto lang_incl_loop
 494 $lang_incl_done:
 495 $  close ifile$
 496 $  echo "Created `''p1''."
 497 $ endsubroutine !make_lang_incl