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- /*
- * as.c --
- *
- * Front end for assembler.
- *
- * Copyright 1989 Regents of the University of California
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies. The University of California
- * makes no representations about the suitability of this
- * software for any purpose. It is provided "as is" without
- * express or implied warranty.
- */
-
- #ifndef lint
- static char rcsid[] = "$Header: /sprite/src/cmds/as/RCS/as_front.c,v 1.2 90/08/06 21:07:58 rab Exp Locker: rab $";
- #endif /* not lint */
-
- #include <stdio.h>
- #include <string.h>
- #include <stdlib.h>
- #include <sys/param.h>
- #include <assert.h>
-
- #ifndef __STDC__
- #define const
- #endif
-
- #ifndef EXIT_FAILURE
- #define EXIT_FAILURE 1
- #endif
-
- #ifdef sun3
- static const char *hostMachine = "sun3";
- #else
- #ifdef sun4
- static const char *hostMachine = "sun4";
- #else
- #ifdef ds3100
- static const char *hostMachine = "ds3100";
- #else
- #ifdef symm
- static const char *hostMachine = "symm";
- #else
- NO DEFAULT TARGET MACHINE TYPE DEFINED
- #endif
- #endif
- #endif
- #endif
-
- /*
- *----------------------------------------------------------------------
- *
- * main --
- * Search through the command line arguments looking for an argument
- * of the form -mfoo, where `foo' is a machine type. If found, delete
- * it from the list of arguments, and use it to determine which
- * backend to exec. If there is no -m then default to the type
- * of the host machine.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Execs machine assembler backend.
- *
- *----------------------------------------------------------------------
- */
-
- void
- main(argc, argv)
- int argc;
- char **argv;
- {
- extern int errno;
- int i;
- int j;
- const char *targetMachine;
- char path[MAXPATHLEN];
-
- assert(argv[argc] == NULL);
- targetMachine = hostMachine;
- for (i = 1; i < argc; ++i) {
- if (argv[i][0] == '-' && argv[i][1] == 'm') {
- if (argv[i][2] == '\0') {
- targetMachine = argv[i + 1];
- if (targetMachine == NULL) {
- fprintf(stderr, "No target machine specified\n");
- exit(EXIT_FAILURE);
- }
- for (j = i; j < argc - 1; ++j) {
- argv[j] = argv[j + 2];
- }
- argc -= 2;
- assert(argv[argc] == NULL);
- } else {
- targetMachine = argv[i] + 2;
- for (j = i; j < argc; ++j) {
- argv[j] = argv[j + 1];
- }
- --argc;
- assert(argv[argc] == NULL);
- }
- break;
- }
- }
- sprintf(path, "/sprite/lib/gcc/%s.md/as.%s", hostMachine, targetMachine);
- execv(path, argv);
- fprintf(stderr, "Can't exec ``%s'': %s\n", path, strerror(errno));
- exit(EXIT_FAILURE);
- }
-
-