1 /* $NetBSD: main2.c,v 1.24 2022/05/20 21:18:55 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 1.24 2022/05/20 21:18:55 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 /* warnings for symbols which are declared but not defined or used */ 51 bool xflag; 52 53 /* 54 * warnings for symbols which are used and not defined or defined 55 * and not used 56 */ 57 bool uflag = true; 58 59 /* Create a lint library in the current directory with name libname. */ 60 bool Cflag; 61 const char *libname; 62 63 /* 64 * warnings for (tentative) definitions of the same name in more than 65 * one translation unit 66 */ 67 bool sflag; 68 69 bool tflag; 70 71 /* 72 * If a complaint stems from a included file, print the name of the included 73 * file instead of the name specified at the command line followed by '?' 74 */ 75 bool Hflag; 76 77 bool hflag; 78 79 /* Print full path names, not only the last component */ 80 bool Fflag; 81 82 /* 83 * List of libraries (from -l flag). These libraries are read after all 84 * other input files has been read and, for Cflag, after the new lint library 85 * has been written. 86 */ 87 const char **libs; 88 89 static void usage(void) __attribute__((noreturn)); 90 91 static void 92 check_name(hte_t *hte) 93 { 94 chkname(hte); 95 } 96 97 int 98 main(int argc, char *argv[]) 99 { 100 int c, i; 101 size_t len; 102 char *lname; 103 104 libs = xcalloc(1, sizeof(*libs)); 105 106 opterr = 0; 107 while ((c = getopt(argc, argv, "hstxuC:HFl:")) != -1) { 108 switch (c) { 109 case 's': 110 sflag = true; 111 break; 112 case 't': 113 tflag = true; 114 break; 115 case 'u': 116 uflag = false; 117 break; 118 case 'x': 119 xflag = true; 120 break; 121 case 'C': 122 len = strlen(optarg); 123 lname = xmalloc(len + 10); 124 (void)sprintf(lname, "llib-l%s.ln", optarg); 125 libname = lname; 126 Cflag = true; 127 uflag = false; 128 break; 129 case 'H': 130 Hflag = true; 131 break; 132 case 'h': 133 hflag = true; 134 break; 135 case 'F': 136 Fflag = true; 137 break; 138 case 'l': 139 for (i = 0; libs[i] != NULL; i++) 140 continue; 141 libs = xrealloc(libs, (i + 2) * sizeof(*libs)); 142 libs[i] = xstrdup(optarg); 143 libs[i + 1] = NULL; 144 break; 145 default: 146 usage(); 147 } 148 } 149 150 argc -= optind; 151 argv += optind; 152 153 if (argc == 0) 154 usage(); 155 156 initmem(); 157 158 symtab_init(); 159 160 for (i = 0; i < argc; i++) 161 readfile(argv[i]); 162 163 /* write the lint library */ 164 if (Cflag) { 165 symtab_forall(mkstatic); 166 outlib(libname); 167 } 168 169 /* read additional libraries */ 170 for (i = 0; libs[i] != NULL; i++) 171 readfile(libs[i]); 172 173 symtab_forall(mkstatic); 174 175 mainused(); 176 177 /* perform all tests */ 178 symtab_forall_sorted(check_name); 179 180 exit(0); 181 /* NOTREACHED */ 182 } 183 184 static void 185 usage(void) 186 { 187 (void)fprintf(stderr, 188 "usage: lint2 -hpstxuHFT -Clib -l lib ... src1 ...\n"); 189 exit(1); 190 } 191