380 lines
8.6 KiB
C
380 lines
8.6 KiB
C
/* VMS DEC C wrapper.
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Copyright (C) 2001 Free Software Foundation, Inc.
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Contributed by Douglas B. Rupp (rupp@gnat.com).
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This program is a wrapper around the VMS DEC C compiler.
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It translates Unix style command line options into corresponding
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VMS style qualifiers and then spawns the DEC C compiler. */
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#include "config.h"
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#include "system.h"
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#undef PATH_SEPARATOR
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#undef PATH_SEPARATOR_STR
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#define PATH_SEPARATOR ','
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#define PATH_SEPARATOR_STR ","
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/* These can be set by command line arguments */
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int verbose = 0;
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int save_temps = 0;
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int comp_arg_max = -1;
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const char **comp_args = 0;
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int comp_arg_index = -1;
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char *objfilename = 0;
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char *system_search_dirs = (char *) "";
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char *search_dirs;
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char *default_defines = (char *) "";
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char *defines;
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/* Translate a Unix syntax directory specification into VMS syntax.
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If indicators of VMS syntax found, return input string. */
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static char *to_host_dir_spec PARAMS ((char *));
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/* Translate a Unix syntax file specification into VMS syntax.
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If indicators of VMS syntax found, return input string. */
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static char *to_host_file_spec PARAMS ((char *));
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/* Add a translated arg to the list to be passed to DEC CC */
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static void addarg PARAMS ((const char *));
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/* Preprocess the number of args in P_ARGC and contained in ARGV.
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Look for special flags, etc. that must be handled first. */
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static void preprocess_args PARAMS ((int *, char **));
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/* Process the number of args in P_ARGC and contained in ARGV. Look
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for special flags, etc. that must be handled for the VMS compiler. */
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static void process_args PARAMS ((int *, char **));
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/* Action routine called by decc$to_vms */
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static int translate_unix PARAMS ((char *, int));
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int main PARAMS ((int, char **));
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/* Add the argument contained in STR to the list of arguments to pass to the
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compiler. */
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static void
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addarg (str)
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const char *str;
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{
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int i;
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if (++comp_arg_index >= comp_arg_max)
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{
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const char **new_comp_args
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= (const char **) xcalloc (comp_arg_max + 1000, sizeof (char *));
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for (i = 0; i <= comp_arg_max; i++)
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new_comp_args [i] = comp_args [i];
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if (comp_args)
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free (comp_args);
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comp_arg_max += 1000;
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comp_args = new_comp_args;
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}
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comp_args [comp_arg_index] = str;
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}
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static void
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preprocess_args (p_argc, argv)
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int *p_argc;
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char *argv[];
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{
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int i;
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for (i = 1; i < *p_argc; i++)
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{
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if (strcmp (argv[i], "-o") == 0)
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{
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char *buff, *ptr;
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int out_len;
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i++;
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ptr = to_host_file_spec (argv[i]);
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objfilename = xstrdup (ptr);
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out_len = strlen (ptr);
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buff = xmalloc (out_len + 6);
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strcpy (buff, "/obj=");
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strcat (buff, ptr);
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addarg (buff);
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}
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}
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}
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static void
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process_args (p_argc, argv)
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int *p_argc;
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char *argv[];
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{
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int i;
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for (i = 1; i < *p_argc; i++)
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{
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if (strlen (argv[i]) < 2)
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continue;
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if (strncmp (argv[i], "-I", 2) == 0)
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{
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char *ptr;
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int new_len, search_dirs_len;
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ptr = to_host_dir_spec (&argv[i][2]);
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new_len = strlen (ptr);
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search_dirs_len = strlen (search_dirs);
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search_dirs = xrealloc (search_dirs, search_dirs_len + new_len + 2);
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if (search_dirs_len > 0)
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strcat (search_dirs, PATH_SEPARATOR_STR);
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strcat (search_dirs, ptr);
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}
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else if (strncmp (argv[i], "-D", 2) == 0)
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{
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char *ptr;
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int new_len, defines_len;
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ptr = &argv[i][2];
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new_len = strlen (ptr);
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defines_len = strlen (defines);
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defines = xrealloc (defines, defines_len + new_len + 4);
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if (defines_len > 0)
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strcat (defines, ",");
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strcat (defines, "\"");
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strcat (defines, ptr);
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strcat (defines, "\"");
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}
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else if (strcmp (argv[i], "-v") == 0)
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verbose = 1;
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else if (strcmp (argv[i], "-g0") == 0)
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addarg ("/nodebug");
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else if (strcmp (argv[i], "-O0") == 0)
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addarg ("/noopt");
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else if (strncmp (argv[i], "-g", 2) == 0)
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addarg ("/debug");
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else if (strcmp (argv[i], "-E") == 0)
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addarg ("/preprocess");
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else if (strcmp (argv[i], "-save-temps") == 0)
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save_temps = 1;
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}
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}
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/* The main program. Spawn the VMS DEC C compiler after fixing up the
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Unix-like flags and args to be what VMS DEC C wants. */
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typedef struct dsc {unsigned short len, mbz; char *adr; } Descr;
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int
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main (argc, argv)
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int argc;
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char **argv;
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{
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int i;
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char cwdev [128], *devptr;
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int devlen;
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char *cwd = getcwd (0, 1024);
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devptr = strchr (cwd, ':');
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devlen = (devptr - cwd) + 1;
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strncpy (cwdev, cwd, devlen);
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cwdev [devlen] = '\0';
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search_dirs = xmalloc (strlen (system_search_dirs) + 1);
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strcpy (search_dirs, system_search_dirs);
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defines = xmalloc (strlen (default_defines) + 1);
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strcpy (defines, default_defines);
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addarg ("cc");
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preprocess_args (&argc , argv);
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process_args (&argc , argv);
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if (strlen (search_dirs) > 0)
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{
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addarg ("/include=(");
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addarg (search_dirs);
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addarg (")");
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}
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if (strlen (defines) > 0)
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{
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addarg ("/define=(");
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addarg (defines);
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addarg (")");
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}
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for (i = 1; i < argc; i++)
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{
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int arg_len = strlen (argv[i]);
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if (strcmp (argv[i], "-o") == 0)
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i++;
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else if (strcmp (argv[i], "-v" ) == 0
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|| strcmp (argv[i], "-E") == 0
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|| strcmp (argv[i], "-c") == 0
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|| strncmp (argv[i], "-g", 2 ) == 0
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|| strncmp (argv[i], "-O", 2 ) == 0
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|| strcmp (argv[i], "-save-temps") == 0
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|| (arg_len > 2 && strncmp (argv[i], "-I", 2) == 0)
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|| (arg_len > 2 && strncmp (argv[i], "-D", 2) == 0))
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;
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/* Unix style file specs and VMS style switches look alike, so assume
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an arg consisting of one and only one slash, and that being first, is
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really a switch. */
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else if ((argv[i][0] == '/') && (strchr (&argv[i][1], '/') == 0))
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addarg (argv[i]);
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else
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{
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/* Assume filename arg */
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char buff [256], *ptr;
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int buff_len;
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ptr = to_host_file_spec (argv[i]);
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arg_len = strlen (ptr);
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if (ptr[0] == '[')
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sprintf (buff, "%s%s", cwdev, ptr);
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else if (strchr (ptr, ':'))
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sprintf (buff, "%s", ptr);
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else
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sprintf (buff, "%s%s", cwd, ptr);
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buff_len = strlen (buff);
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ptr = xmalloc (buff_len + 1);
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strcpy (ptr, buff);
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addarg (ptr);
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}
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}
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addarg (NULL);
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if (verbose)
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{
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int i;
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for (i = 0; i < comp_arg_index; i++)
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printf ("%s ", comp_args [i]);
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putchar ('\n');
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}
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{
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int i;
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int len = 0;
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for (i = 0; comp_args[i]; i++)
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len = len + strlen (comp_args[i]) + 1;
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{
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char *allargs = (char *) alloca (len + 1);
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Descr cmd;
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int status;
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int status1 = 1;
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for (i = 0; i < len + 1; i++)
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allargs [i] = 0;
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for (i = 0; comp_args [i]; i++)
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{
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strcat (allargs, comp_args [i]);
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strcat (allargs, " ");
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}
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cmd.adr = allargs;
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cmd.len = len;
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cmd.mbz = 0;
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i = LIB$SPAWN (&cmd, 0, 0, 0, 0, 0, &status);
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if ((i & 1) != 1)
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{
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LIB$SIGNAL (i);
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exit (1);
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}
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if ((status & 1) == 1 && (status1 & 1) == 1)
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exit (0);
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exit (1);
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}
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}
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}
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static char new_host_filespec [255];
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static char new_host_dirspec [255];
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static char filename_buff [256];
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static int
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translate_unix (name, type)
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char *name;
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int type ATTRIBUTE_UNUSED;
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{
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strcpy (filename_buff, name);
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return 0;
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}
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static char *
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to_host_dir_spec (dirspec)
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char *dirspec;
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{
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int len = strlen (dirspec);
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strcpy (new_host_dirspec, dirspec);
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if (strchr (new_host_dirspec, ']') || strchr (new_host_dirspec, ':'))
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return new_host_dirspec;
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while (len > 1 && new_host_dirspec [len-1] == '/')
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{
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new_host_dirspec [len-1] = 0;
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len--;
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}
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decc$to_vms (new_host_dirspec, translate_unix, 1, 2);
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strcpy (new_host_dirspec, filename_buff);
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return new_host_dirspec;
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}
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static char *
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to_host_file_spec (filespec)
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char *filespec;
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{
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strcpy (new_host_filespec, "");
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if (strchr (filespec, ']') || strchr (filespec, ':'))
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strcpy (new_host_filespec, filespec);
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else
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{
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decc$to_vms (filespec, translate_unix, 1, 1);
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strcpy (new_host_filespec, filename_buff);
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}
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return new_host_filespec;
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}
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