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main2.c revision 1.34 
      1 /*	$NetBSD: main2.c,v 1.34 2023/07/13 08:40:38 rillig Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994, 1995 Jochen Pohl
      5  * All Rights Reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Jochen Pohl for
     18  *	The NetBSD Project.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #if HAVE_NBTOOL_CONFIG_H
     35 #include "nbtool_config.h"
     36 #endif
     37 
     38 #include <sys/cdefs.h>
     39 #if defined(__RCSID)
     40 __RCSID("$NetBSD: main2.c,v 1.34 2023/07/13 08:40:38 rillig Exp $");
     41 #endif
     42 
     43 #include <stdio.h>
     44 #include <stdlib.h>
     45 #include <string.h>
     46 #include <unistd.h>
     47 
     48 #include "lint2.h"
     49 
     50 bool	Cflag;
     51 bool	Fflag;
     52 bool	Hflag;
     53 bool	hflag;
     54 bool	sflag;
     55 bool	tflag;
     56 bool	uflag;
     57 bool	xflag;
     58 const char *libname;
     59 
     60 /*
     61  * List of libraries (from -l flag). These libraries are read after all
     62  * other input files has been read and, for Cflag, after the new lint library
     63  * has been written.
     64  */
     65 static const char **libs;
     66 
     67 static	void	usage(void) __attribute__((noreturn));
     68 
     69 static void
     70 check_name_non_const(hte_t *hte)
     71 {
     72 	check_name(hte);
     73 }
     74 
     75 int
     76 main(int argc, char *argv[])
     77 {
     78 	int c, i;
     79 	size_t len;
     80 	char *lname;
     81 
     82 	libs = xcalloc(1, sizeof(*libs));
     83 
     84 	opterr = 0;
     85 	while ((c = getopt(argc, argv, "hl:stuxC:HF")) != -1) {
     86 		switch (c) {
     87 		case 's':
     88 			sflag = true;
     89 			break;
     90 		case 't':
     91 			tflag = true;
     92 			break;
     93 		case 'u':
     94 			uflag = true;
     95 			break;
     96 		case 'x':
     97 			xflag = true;
     98 			break;
     99 		case 'C':
    100 			len = strlen(optarg);
    101 			lname = xmalloc(len + 10);
    102 			(void)snprintf(lname, len + 10, "llib-l%s.ln", optarg);
    103 			libname = lname;
    104 			Cflag = true;
    105 			uflag = true;
    106 			break;
    107 		case 'H':
    108 			Hflag = true;
    109 			break;
    110 		case 'h':
    111 			hflag = true;
    112 			break;
    113 		case 'F':
    114 			Fflag = true;
    115 			break;
    116 		case 'l':
    117 			for (i = 0; libs[i] != NULL; i++)
    118 				continue;
    119 			libs = xrealloc(libs, (i + 2) * sizeof(*libs));
    120 			libs[i] = xstrdup(optarg);
    121 			libs[i + 1] = NULL;
    122 			break;
    123 		default:
    124 			usage();
    125 		}
    126 	}
    127 
    128 	argc -= optind;
    129 	argv += optind;
    130 
    131 	if (argc == 0)
    132 		usage();
    133 
    134 	symtab_init();
    135 
    136 	for (i = 0; i < argc; i++)
    137 		readfile(argv[i]);
    138 
    139 	/* write the lint library */
    140 	if (Cflag) {
    141 		symtab_forall(mkstatic);
    142 		outlib(libname);
    143 	}
    144 
    145 	/* read additional libraries */
    146 	for (i = 0; libs[i] != NULL; i++)
    147 		readfile(libs[i]);
    148 
    149 	symtab_forall(mkstatic);
    150 
    151 	mark_main_as_used();
    152 
    153 	/* perform all tests */
    154 	symtab_forall_sorted(check_name_non_const);
    155 
    156 	return 0;
    157 }
    158 
    159 static void
    160 usage(void)
    161 {
    162 	(void)fprintf(stderr,
    163 	    "usage: %s [-hstuxHF] -Clib -l lib ... src1 ...\n", getprogname());
    164 	exit(1);
    165 }
    166