1#! /usr/bin/awk -f 2# $NetBSD: errlist.awk,v 1.4 2010/12/16 22:52:32 joerg Exp $ 3# 4# Copyright (c) 2010 The NetBSD Foundation, Inc. 5# All rights reserved. 6# 7# This code is derived from software contributed to The NetBSD Foundation 8# by Christos Zoulas. 9# 10# Redistribution and use in source and binary forms, with or without 11# modification, are permitted provided that the following conditions 12# are met: 13# 1. Redistributions of source code must retain the above copyright 14# notice, this list of conditions and the following disclaimer. 15# 2. Redistributions in binary form must reproduce the above copyright 16# notice, this list of conditions and the following disclaimer in the 17# documentation and/or other materials provided with the distribution. 18# 3. All advertising materials mentioning features or use of this software 19# must display the following acknowledgement: 20# This product includes software developed by the NetBSD 21# Foundation, Inc. and its contributors. 22# 4. Neither the name of The NetBSD Foundation nor the names of its 23# contributors may be used to endorse or promote products derived 24# from this software without specific prior written permission. 25# 26# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36# POSSIBILITY OF SUCH DAMAGE. 37# 38function tabs(desc) { 39 l = length(desc) + 3; 40 if (concat) 41 l++ 42 if (l < 16) 43 return "\t\t\t\t"; 44 else if (l < 24) 45 return "\t\t\t"; 46 else if (l < 32) 47 return "\t\t"; 48 else if (l < 40) 49 return "\t"; 50 else 51 return ""; 52} 53function perror(name, number, desc) 54{ 55 if (!concat) { 56 printf("\t\"%s\",%s/* %d - %s */\n", desc, tabs(desc), number, name); 57 } else { 58 offsets[number] = offset; 59 offset += length(desc) + 1; 60 printf("\t\"%s\\0\"%s/* %d - %s */\n", desc, tabs(desc), number, name); 61 } 62} 63BEGIN { 64 printf("/* Automatically generated file; do not edit */\n"); 65 printf("#include <sys/cdefs.h>\n"); 66 printf("__RCSID(\"$NetBSD: errlist.awk,v 1.4 2010/12/16 22:52:32 joerg Exp $\");\n"); 67 printf("#include <errno.h>\n"); 68 if (!concat) { 69 printf("static const char *const errlist[] = {\n"); 70 } else { 71 printf("static const char concat_errlist[] = {\n"); 72 offset = 0; 73 } 74 perror("ENOERROR", 0, "Undefined error: 0"); 75 errno = 1; 76} 77/^#define/ { 78 name = $2; 79 if (name == "ELAST") 80 next; 81 number = $3; 82 if (number < 0 || number == "EAGAIN") 83 next; 84 desc = $0; 85 i1 = index(desc, "/*") + 3; 86 l = length(desc); 87 desc = substr(desc, i1, l - i1 - 2); 88 #__MINIX: We have more error numbers... 89 if (number < errno) { 90 printf("error number mismatch %d != %d\n", number, errno) > "/dev/stderr"; 91 exit(1); 92 } 93 #__MINIX:start 94 while(errno < number) { 95 perror("UNDEFINED", errno, "Undefined error: " errno); 96 errno++; 97 } 98 #__MINIX:end 99 perror(name, number, desc); 100 errno++; 101} 102END { 103 printf("};\n\n"); 104 if (!concat) { 105 printf("const int sys_nerr = sizeof(errlist) / sizeof(errlist[0]);\n"); 106 printf("const char * const *sys_errlist = errlist;\n"); 107 } else { 108 printf("static const int concat_nerr = %d;\n", errno); 109 printf("static const unsigned short concat_offset[] = {\n"); 110 offsets[errno++] = offset; 111 for (j = 0; j < errno; j++) { 112 printf("\t%d,\n", offsets[j]); 113 } 114 printf("};\n"); 115 if (offset > 65535) { 116 printf("Total errlist size doesn't fit into 16bit\n") > "/dev/stderr"; 117 exit(1); 118 } 119 } 120} 121