gcc/config/alpha/vms-cc.c

   1 /* VMS DEC C wrapper.
   2    Copyright (C) 2001, 2003 Free Software Foundation, Inc.
   3    Contributed by Douglas B. Rupp (rupp@gnat.com).
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /* This program is a wrapper around the VMS DEC C compiler.
  23    It translates Unix style command line options into corresponding
  24    VMS style qualifiers and then spawns the DEC C compiler.  */
  25
  26 #include "config.h"
  27 #include "system.h"
  28 #include "coretypes.h"
  29 #include "tm.h"
  30
  31 #undef PATH_SEPARATOR
  32 #undef PATH_SEPARATOR_STR
  33 #define PATH_SEPARATOR ','
  34 #define PATH_SEPARATOR_STR ","
  35
  36 /* These can be set by command line arguments */
  37 static int verbose = 0;
  38 static int save_temps = 0;
  39
  40 static int comp_arg_max = -1;
  41 static const char **comp_args = 0;
  42 static int comp_arg_index = -1;
  43 static char *objfilename = 0;
  44
  45 static char *system_search_dirs = (char *) "";
  46 static char *search_dirs;
  47
  48 static char *default_defines = (char *) "";
  49 static char *defines;
  50
  51 /* Translate a Unix syntax directory specification into VMS syntax.
  52    If indicators of VMS syntax found, return input string.  */
  53 static char *to_host_dir_spec (char *);
  54
  55 /* Translate a Unix syntax file specification into VMS syntax.
  56    If indicators of VMS syntax found, return input string.  */
  57 static char *to_host_file_spec (char *);
  58
  59 /* Add a translated arg to the list to be passed to DEC CC.  */
  60 static void addarg (const char *);
  61
  62 /* Preprocess the number of args in P_ARGC and contained in ARGV.
  63    Look for special flags, etc. that must be handled first.  */
  64 static void preprocess_args (int *, char **);
  65
  66 /* Process the number of args in P_ARGC and contained in ARGV. Look
  67    for special flags, etc. that must be handled for the VMS compiler.  */
  68 static void process_args (int *, char **);
  69
  70 /* Action routine called by decc$to_vms */
  71 static int translate_unix (char *, int);
  72 \f
  73 /* Add the argument contained in STR to the list of arguments to pass to the
  74    compiler.  */
  75
  76 static void
  77 addarg (const char *str)
  78 {
  79   int i;
  80
  81   if (++comp_arg_index >= comp_arg_max)
  82     {
  83       const char **new_comp_args
  84         = (const char **) xcalloc (comp_arg_max + 1000, sizeof (char *));
  85
  86       for (i = 0; i <= comp_arg_max; i++)
  87         new_comp_args [i] = comp_args [i];
  88
  89       if (comp_args)
  90         free (comp_args);
  91
  92       comp_arg_max += 1000;
  93       comp_args = new_comp_args;
  94     }
  95
  96   comp_args [comp_arg_index] = str;
  97 }
  98
  99 static void
 100 preprocess_args (int *p_argc, char *argv[])
 101 {
 102   int i;
 103
 104   for (i = 1; i < *p_argc; i++)
 105     {
 106       if (strcmp (argv[i], "-o") == 0)
 107         {
 108           char *buff, *ptr;
 109
 110           i++;
 111           ptr = to_host_file_spec (argv[i]);
 112           objfilename = xstrdup (ptr);
 113           buff = concat ("/obj=", ptr, NULL);
 114           addarg (buff);
 115         }
 116     }
 117 }
 118
 119 static void
 120 process_args (int *p_argc, char *argv[])
 121 {
 122   int i;
 123
 124   for (i = 1; i < *p_argc; i++)
 125     {
 126       if (strlen (argv[i]) < 2)
 127         continue;
 128
 129       if (strncmp (argv[i], "-I", 2) == 0)
 130         {
 131           char *ptr;
 132           int new_len, search_dirs_len;
 133
 134           ptr = to_host_dir_spec (&argv[i][2]);
 135           new_len = strlen (ptr);
 136           search_dirs_len = strlen (search_dirs);
 137
 138           search_dirs = xrealloc (search_dirs, search_dirs_len + new_len + 2);
 139           if (search_dirs_len > 0)
 140             strcat (search_dirs, PATH_SEPARATOR_STR);
 141           strcat (search_dirs, ptr);
 142         }
 143       else if (strncmp (argv[i], "-D", 2) == 0)
 144         {
 145           char *ptr;
 146           int new_len, defines_len;
 147
 148           ptr = &argv[i][2];
 149           new_len = strlen (ptr);
 150           defines_len = strlen (defines);
 151
 152           defines = xrealloc (defines, defines_len + new_len + 4);
 153           if (defines_len > 0)
 154             strcat (defines, ",");
 155
 156           strcat (defines, "\"");
 157           strcat (defines, ptr);
 158           strcat (defines, "\"");
 159         }
 160       else if (strcmp (argv[i], "-v") == 0)
 161         verbose = 1;
 162       else if (strcmp (argv[i], "-g0") == 0)
 163         addarg ("/nodebug");
 164       else if (strcmp (argv[i], "-O0") == 0)
 165         addarg ("/noopt");
 166       else if (strncmp (argv[i], "-g", 2) == 0)
 167         addarg ("/debug");
 168       else if (strcmp (argv[i], "-E") == 0)
 169         addarg ("/preprocess");
 170       else if (strcmp (argv[i], "-save-temps") == 0)
 171         save_temps = 1;
 172     }
 173 }
 174
 175 /* The main program.  Spawn the VMS DEC C compiler after fixing up the
 176    Unix-like flags and args to be what VMS DEC C wants.  */
 177
 178 typedef struct dsc {unsigned short len, mbz; char *adr; } Descr;
 179
 180 int
 181 main (int argc, char **argv)
 182 {
 183   int i;
 184   char cwdev [128], *devptr;
 185   int devlen;
 186   char *cwd = getcwd (0, 1024);
 187
 188   devptr = strchr (cwd, ':');
 189   devlen = (devptr - cwd) + 1;
 190   strncpy (cwdev, cwd, devlen);
 191   cwdev [devlen] = '\0';
 192
 193   search_dirs = xstrdup (system_search_dirs);
 194   defines = xstrdup (default_defines);
 195
 196   addarg ("cc");
 197   preprocess_args (&argc , argv);
 198   process_args (&argc , argv);
 199
 200   if (strlen (search_dirs) > 0)
 201     {
 202       addarg ("/include=(");
 203       addarg (search_dirs);
 204       addarg (")");
 205     }
 206
 207   if (strlen (defines) > 0)
 208     {
 209       addarg ("/define=(");
 210       addarg (defines);
 211       addarg (")");
 212     }
 213
 214   for (i = 1; i < argc; i++)
 215     {
 216       int arg_len = strlen (argv[i]);
 217
 218       if (strcmp (argv[i], "-o") == 0)
 219         i++;
 220       else if (strcmp (argv[i], "-v" ) == 0
 221                || strcmp (argv[i], "-E") == 0
 222                || strcmp (argv[i], "-c") == 0
 223                || strncmp (argv[i], "-g", 2 ) == 0
 224                || strncmp (argv[i], "-O", 2 ) == 0
 225                || strcmp (argv[i], "-save-temps") == 0
 226                || (arg_len > 2 && strncmp (argv[i], "-I", 2) == 0)
 227                || (arg_len > 2 && strncmp (argv[i], "-D", 2) == 0))
 228         ;
 229
 230       /* Unix style file specs and VMS style switches look alike, so assume
 231          an arg consisting of one and only one slash, and that being first, is
 232          really a switch.  */
 233       else if ((argv[i][0] == '/') && (strchr (&argv[i][1], '/') == 0))
 234         addarg (argv[i]);
 235       else
 236         {
 237           /* Assume filename arg */
 238           char buff [256], *ptr;
 239
 240           ptr = to_host_file_spec (argv[i]);
 241           arg_len = strlen (ptr);
 242
 243           if (ptr[0] == '[')
 244             sprintf (buff, "%s%s", cwdev, ptr);
 245           else if (strchr (ptr, ':'))
 246             sprintf (buff, "%s", ptr);
 247           else
 248             sprintf (buff, "%s%s", cwd, ptr);
 249
 250           ptr = xstrdup (buff);
 251           addarg (ptr);
 252         }
 253     }
 254
 255   addarg (NULL);
 256
 257   if (verbose)
 258     {
 259       int i;
 260
 261       for (i = 0; i < comp_arg_index; i++)
 262         printf ("%s ", comp_args [i]);
 263
 264       putchar ('\n');
 265     }
 266
 267   {
 268     int i;
 269     int len = 0;
 270
 271     for (i = 0; comp_args[i]; i++)
 272       len = len + strlen (comp_args[i]) + 1;
 273
 274     {
 275       char *allargs = (char *) alloca (len + 1);
 276       Descr cmd;
 277       int status;
 278       int status1 = 1;
 279
 280       for (i = 0; i < len + 1; i++)
 281         allargs [i] = 0;
 282
 283       for (i = 0; comp_args [i]; i++)
 284         {
 285           strcat (allargs, comp_args [i]);
 286           strcat (allargs, " ");
 287         }
 288
 289       cmd.adr = allargs;
 290       cmd.len = len;
 291       cmd.mbz = 0;
 292
 293       i = LIB$SPAWN (&cmd, 0, 0, 0, 0, 0, &status);
 294
 295       if ((i & 1) != 1)
 296         {
 297           LIB$SIGNAL (i);
 298           exit (1);
 299         }
 300
 301       if ((status & 1) == 1 && (status1 & 1) == 1)
 302         exit (0);
 303
 304       exit (1);
 305     }
 306   }
 307 }
 308
 309 static char new_host_filespec [255];
 310 static char new_host_dirspec [255];
 311 static char filename_buff [256];
 312
 313 static int
 314 translate_unix (char *name, int type ATTRIBUTE_UNUSED)
 315 {
 316   strcpy (filename_buff, name);
 317   return 0;
 318 }
 319
 320 static char *
 321 to_host_dir_spec (char *dirspec)
 322 {
 323   int len = strlen (dirspec);
 324
 325   strcpy (new_host_dirspec, dirspec);
 326
 327   if (strchr (new_host_dirspec, ']') || strchr (new_host_dirspec, ':'))
 328     return new_host_dirspec;
 329
 330   while (len > 1 && new_host_dirspec [len-1] == '/')
 331     {
 332       new_host_dirspec [len-1] = 0;
 333       len--;
 334     }
 335
 336   decc$to_vms (new_host_dirspec, translate_unix, 1, 2);
 337   strcpy (new_host_dirspec, filename_buff);
 338
 339   return new_host_dirspec;
 340
 341 }
 342
 343 static char *
 344 to_host_file_spec (char *filespec)
 345 {
 346   strcpy (new_host_filespec, "");
 347   if (strchr (filespec, ']') || strchr (filespec, ':'))
 348     strcpy (new_host_filespec, filespec);
 349   else
 350     {
 351       decc$to_vms (filespec, translate_unix, 1, 1);
 352       strcpy (new_host_filespec, filename_buff);
 353     }
 354
 355   return new_host_filespec;
 356 }