gcc/vmsconfig.com

   1 $ !
   2 $ !     Set up to compile GCC on VAX/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 $ !
  10 $ echo = "write sys$output"
  11 $ !
  12 $ if f$search("config.h") .nes. "" then delete config.h.*
  13 $ copy [.config.vax]xm-vms.h []config.h
  14 $ echo "Linked `config.h' to `[.config.vax]xm-vms.h'.
  15 $ !
  16 $ if f$search("tconfig.h") .nes. "" then delete tconfig.h.*
  17 $ create []tconfig.h
  18 $DECK
  19 /* tconfig.h == config.h :: target and host configurations are the same */
  20 #include "config.h"
  21 $EOD
  22 $ echo "Created `tconfig.h'.
  23 $ !
  24 $ if f$search("hconfig.h") .nes. "" then delete hconfig.h.*
  25 $ create []hconfig.h
  26 $DECK
  27 /* hconfig.h == config.h :: host and target configurations are the same */
  28 #include "config.h"
  29 $EOD
  30 $ echo "Created `hconfig.h'.
  31 $ !
  32 $ if f$search("tm.h") .nes. "" then delete tm.h.*
  33 $!! copy [.config.vax]vms.h []tm.h
  34 $ edit/tpu/nojournal/nosection/nodisplay/command=sys$input -
  35         [.config.vax]vms.h /output=[]tm.h
  36 $DECK
  37 !
  38 !  Copy file, changing lines of the form
  39 !       #include "vax/*"
  40 !  into
  41 !       #include "[.config.vax]*"
  42 !
  43    file := CREATE_BUFFER("file", GET_INFO(COMMAND_LINE, "file_name"));
  44    targ := LINE_BEGIN & '#include' & SPAN(ASCII(32)+ASCII(9)) & '"vax/';
  45    rang := CREATE_RANGE(BEGINNING_OF(file), END_OF(file));
  46    LOOP
  47       incl := SEARCH_QUIETLY(targ, FORWARD, EXACT, rang);
  48       EXITIF incl = 0;
  49       POSITION(BEGINNING_OF(incl));
  50       ERASE(incl);
  51       COPY_TEXT('#include "[.config.vax]');
  52       rang := CREATE_RANGE(END_OF(incl), END_OF(file));
  53    ENDLOOP;
  54    WRITE_FILE(file, GET_INFO(COMMAND_LINE, "output_file"));
  55    QUIT
  56 $EOD
  57 $ echo "Generated `tm.h' from `[.config.vax]vms.h'.
  58 $ !
  59 $ if f$search("md.") .nes. "" then delete md..*
  60 $ copy [.config.vax]vax.md []md.
  61 $ echo "Linked `md' to `[.config.vax]vax.md'.
  62 $ !
  63 $ if f$search("aux-output.c") .nes. "" then delete aux-output.c.*
  64 $ copy [.config.vax]vax.c []aux-output.c
  65 $ echo "Linked `aux-output.c' to `[.config.vax]vax.c'.
  66 $ !
  67 $!
  68 $!
  69 $! Create the file version.opt, which helps identify the executable.
  70 $!
  71 $search version.c version_string,"="/match=and/output=t.tmp
  72 $open ifile$ t.tmp
  73 $read ifile$ line
  74 $close ifile$
  75 $delete t.tmp;
  76 $ijk=f$locate("""",line)+1
  77 $line=f$extract(ijk,f$length(line)-ijk,line)
  78 $ijk=f$locate("""",line)
  79 $line=f$extract(0,ijk,line)
  80 $ijk=f$locate("\n",line)
  81 $line=f$extract(0,ijk,line)
  82 $!
  83 $i=0
  84 $loop:
  85 $elm=f$element(i," ",line)
  86 $if elm.eqs."" then goto no_ident
  87 $if (elm.les."9").and.(elm.ges."0") then goto write_ident
  88 $i=i+1
  89 $goto loop
  90 $!
  91 $no_ident:
  92 $elm="?.??"
  93 $!
  94 $!
  95 $write_ident:
  96 $open ifile$ version.opt/write
  97 $write ifile$ "ident="+""""+elm+""""
  98 $close ifile$
  99 $purge version.opt
 100 $!
 101 $!
 102 $! create linker options files that lists all of the components for all
 103 $! possible compilers.  We do this by editing the file Makefile.in, and
 104 $! generating the relevant files from it.
 105 $!
 106 $!
 107 $! Make a copy of the makefile if the sources are on a disk that is NFS
 108 $!    mounted on a unix machine.
 109 $if f$search("Makefile.in").eqs."" .and. f$search("$M$akefile.in").nes."" -
 110         then copy $M$akefile.in Makefile.in
 111 $!
 112 $!
 113 $echo "Now processing Makefile.in to generate linker option files."
 114 $edit/tpu/nojournal/nosection/nodisplay/command=sys$input
 115    PROCEDURE generate_option_file (TAG_NAME, outfile)
 116         position (beginning_of (newbuffer));
 117         recursive_fetch_tag (TAG_NAME);
 118 !
 119 ! Now fix up a few things in the output buffer
 120 !
 121         pat_replace (".o ",",");
 122         pat_replace (".o","");  !appear at end of lines.
 123 !
 124 ! Remove trailing commas, if present.
 125 !
 126         position (beginning_of (newbuffer));
 127         LOOP
 128           range1 := search_quietly("," & ((SPAN(" ") & LINE_END) | LINE_END),
 129                                    FORWARD, EXACT);
 130           exitif range1 = 0;
 131           position (beginning_of (range1));
 132           erase(range1);
 133           split_line;
 134           ENDLOOP;
 135 ! get rid of leading spaces on lines.
 136         position (beginning_of (current_buffer)) ;
 137         LOOP
 138           range1 := search_quietly ( LINE_BEGIN & " ", FORWARD, EXACT) ;
 139           EXITIF range1 = 0;
 140           position (end_of (range1));
 141           erase_character(1);
 142         ENDLOOP;
 143 !
 144 ! Now write the output file.
 145 !
 146         SET(OUTPUT_FILE, newbuffer, outfile);
 147       write_file (newbuffer);
 148       erase (newbuffer);
 149    ENDPROCEDURE;
 150
 151 !
 152 ! Looks up a tag, copies it to newbuffer, and then translates any $(...)
 153 ! definitions that appear.  The translation is put at the current point.
 154 !
 155    PROCEDURE recursive_fetch_tag (TAG_N);
 156    fetch_tag (TAG_N);
 157 !
 158 ! substitute any  makefile symbols $(...)
 159 !
 160         position (beginning_of (current_buffer)) ;
 161         LOOP
 162           range1 := search_quietly ("$(" &
 163       SPAN("abcdefghijklmnopqrstuvwxyz_ABCDEFGHIJKLMNOPQRSTUVWXYZ#~0123456789")
 164                                     & ")", FORWARD, EXACT) ;
 165           EXITIF range1 = 0;
 166           position (beginning_of (range1));
 167           move_horizontal(2);
 168           mark_1 := MARK (NONE);
 169           position (end_of (range1));
 170           move_horizontal(-1);
 171           mark_2 := MARK (NONE);
 172           tag_range := CREATE_RANGE(MARK_1, MARK_2, NONE);
 173           position (end_of (range1));
 174           tag_string := STR (tag_range);
 175           erase (range1);
 176           fetch_tag (LINE_BEGIN & tag_string & ((SPAN(" ") & "=") | "="));
 177           position (beginning_of (current_buffer)) ;
 178         ENDLOOP;
 179    ENDPROCEDURE;
 180
 181 !
 182 ! Looks up the translation of a tag, and inserts it at the current location
 183 ! in the buffer
 184 !
 185    PROCEDURE fetch_tag (TAG_N);
 186       LOCAL mark1, mark2, mark3, range2;
 187       mark3 := MARK(NONE) ;
 188       position (beginning_of (mainbuffer)) ;
 189       range2 := search_quietly (TAG_N, FORWARD, EXACT) ;
 190       IF (range2 = 0) then
 191         position (mark3);
 192         return;
 193         endif;
 194       position (end_of (range2)) ;
 195       MOVE_HORIZONTAL(1);
 196       mark1 := MARK(NONE) ;
 197       position (beginning_of (range2)) ;
 198       MOVE_VERTICAL(1);
 199       MOVE_HORIZONTAL(-2);
 200       LOOP
 201         EXITIF CURRENT_CHARACTER <> "\" ;
 202         ERASE_CHARACTER(1);
 203         MOVE_HORIZONTAL(1);
 204         MOVE_VERTICAL(1);
 205         MOVE_HORIZONTAL(-2);
 206         ENDLOOP;
 207       MOVE_HORIZONTAL(1);
 208       mark2 := MARK(NONE) ;
 209       range2 := CREATE_RANGE(mark1, mark2, NONE) ;
 210       position (mark3);
 211       if (length(range2) = 0) then return; endif;
 212       copy_text(range2);
 213    ENDPROCEDURE;
 214
 215    PROCEDURE pat_replace (
 216       oldstring, !
 217       newstring)  !
 218       LOCAL range2;
 219       position (beginning_of (current_buffer)) ;
 220       LOOP
 221          range2 := search_quietly (oldstring, FORWARD, EXACT) ;
 222          EXITIF range2 = 0 ;
 223          position (beginning_of (range2)) ;
 224          erase (range2) ;
 225          copy_text (newstring) ;
 226          ENDLOOP ;
 227    ENDPROCEDURE ;
 228
 229 ! this is the start of the main procedure
 230    filename := GET_INFO (COMMAND_LINE, 'file_name') ;
 231    mainbuffer := CREATE_BUFFER ("Makefile.in", "Makefile.in") ;
 232    newbuffer := CREATE_BUFFER("outfile");
 233    compiler_list := CREATE_BUFFER("compilers");
 234 !
 235 ! Add to this list, as required.  The file "Makefile.in" is searched for a
 236 ! tag that looks like "LINE_BEGIN + 'tag + (optional space) + "="".  The
 237 ! contents are assumed to be a list of object files, and from this list a
 238 ! VMS linker options file is generated.
 239 !
 240    position (beginning_of (compiler_list));
 241    recursive_fetch_tag(LINE_BEGIN & "COMPILERS" & ((SPAN(" ") & "=") | "="));
 242    position (beginning_of (compiler_list));
 243    LOOP ! kill leading spaces.
 244         exitif current_character <> " ";
 245         erase_character(1);
 246         ENDLOOP;
 247    position (beginning_of (compiler_list));
 248       LOOP ! remove any double spaces.
 249          range1 := search_quietly ("  ", FORWARD, EXACT) ; EXITIF range1 = 0 ;
 250          position (beginning_of (range1)) ;
 251          erase_character(1);
 252          ENDLOOP ;
 253    position (end_of (compiler_list));
 254    move_horizontal(-1);
 255    LOOP ! kill trailing spaces.
 256         exitif current_character <> " ";
 257         erase_character(1);
 258         move_horizontal(-1);
 259         ENDLOOP;
 260    position (beginning_of (compiler_list));
 261       LOOP
 262          range1 := search_quietly (" ", FORWARD, EXACT) ;
 263          EXITIF range1 = 0 ;
 264          position (beginning_of (range1)) ;
 265          erase (range1) ;
 266          split_line;
 267          ENDLOOP ;
 268 !
 269 ! We now have a list of supported compilers.  Now write it, and use it.
 270 !
 271         SET(OUTPUT_FILE, compiler_list, "compilers.list");
 272       write_file (compiler_list);
 273    generate_option_file(LINE_BEGIN & "OBJS" & ((SPAN(" ") & "=") | "="),
 274                         "independent.opt");
 275    generate_option_file(LINE_BEGIN & "LIB2FUNCS" & ((SPAN(" ") & "=") | "="),
 276                         "libgcc2.list");
 277 !
 278 ! Now change OBJS in the Makefile, so each language specific options file
 279 ! does not pick up all of the language independent files.
 280 !
 281    position (beginning_of (mainbuffer));
 282    range1 := search_quietly (LINE_BEGIN & "OBJS" & ((SPAN(" ") & "=") | "="),
 283                              FORWARD, EXACT) ;
 284    position (end_of (range1));
 285    split_line;
 286    position (beginning_of (compiler_list));
 287    LOOP
 288      cmark := mark(NONE);
 289      exitif cmark = end_of(compiler_list);
 290      message(current_line);
 291      generate_option_file(LINE_BEGIN & Current_line & ((SPAN(" ") & ":") | ":"),
 292                           current_line+"-objs.opt");
 293      position (cmark);
 294      move_vertical(1);
 295    ENDLOOP ;
 296    quit ;
 297 $ echo ""
 298 $!
 299 $! Remove excessive versions of the option files...
 300 $!
 301 $ purge *.opt
 302 $ purge compilers.list,libgcc2.list
 303 $!
 304 $!
 305 $!
 306 $ if f$search("config.status") .nes. "" then delete config.status.*
 307 $ open/write file config.status
 308 $ write file "Links are now set up for use with a vax running VMS."
 309 $ close file
 310 $ type config.status
 311 $ echo ""