. strerror() assumes this . remove generated libminc/errlist.c . errno's in <sys/errno.h> have to be in sorted order . filtering out some errno.h in Makefile lets us use near-stock errlist.awk
117 lines
3.8 KiB
Awk
117 lines
3.8 KiB
Awk
#! /usr/bin/awk -f
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# $NetBSD: errlist.awk,v 1.4 2010/12/16 22:52:32 joerg Exp $
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#
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# Copyright (c) 2010 The NetBSD Foundation, Inc.
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# All rights reserved.
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#
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# This code is derived from software contributed to The NetBSD Foundation
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# by Christos Zoulas.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. All advertising materials mentioning features or use of this software
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# must display the following acknowledgement:
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# This product includes software developed by the NetBSD
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# Foundation, Inc. and its contributors.
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# 4. Neither the name of The NetBSD Foundation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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function tabs(desc) {
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l = length(desc) + 3;
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if (concat)
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l++
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if (l < 16)
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return "\t\t\t\t";
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else if (l < 24)
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return "\t\t\t";
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else if (l < 32)
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return "\t\t";
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else if (l < 40)
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return "\t";
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else
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return "";
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}
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function perror(name, number, desc)
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{
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if (!concat) {
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printf("\t\"%s\",%s/* %d - %s */\n", desc, tabs(desc), number, name);
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} else {
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offsets[number] = offset;
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offset += length(desc) + 1;
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printf("\t\"%s\\0\"%s/* %d - %s */\n", desc, tabs(desc), number, name);
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}
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}
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BEGIN {
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printf("/* Automatically generated file; do not edit */\n");
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printf("#include <sys/cdefs.h>\n");
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printf("__RCSID(\"$NetBSD: errlist.awk,v 1.4 2010/12/16 22:52:32 joerg Exp $\");\n");
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printf("#include <errno.h>\n");
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if (!concat) {
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printf("static const char *const errlist[] = {\n");
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} else {
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printf("static const char concat_errlist[] = {\n");
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offset = 0;
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}
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perror("ENOERROR", 0, "Undefined error: 0");
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errno = 1;
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}
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/^#define/ {
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name = $2;
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if (name == "ELAST")
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next;
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number = $3;
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if (number < 0 || number == "EAGAIN")
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next;
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desc = $0;
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i1 = index(desc, "/*") + 3;
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l = length(desc);
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desc = substr(desc, i1, l - i1 - 2);
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if (number < errno) {
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printf("%s\n error number mismatch %d != %d\n", $0, number, errno) > "/dev/stderr";
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exit(1);
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}
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while(errno < number) {
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perror("UNDEFINED", errno, "Undefined error: " errno);
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errno++;
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}
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perror(name, number, desc);
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errno++;
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}
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END {
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printf("};\n\n");
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if (!concat) {
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printf("const int sys_nerr = sizeof(errlist) / sizeof(errlist[0]);\n");
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printf("const char * const *sys_errlist = errlist;\n");
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} else {
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printf("static const int concat_nerr = %d;\n", errno);
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printf("static const unsigned short concat_offset[] = {\n");
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offsets[errno++] = offset;
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for (j = 0; j < errno; j++) {
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printf("\t%d,\n", offsets[j]);
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}
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printf("};\n");
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if (offset > 65535) {
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printf("Total errlist size doesn't fit into 16bit\n") > "/dev/stderr";
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exit(1);
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}
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}
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}
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