78 lines
2.3 KiB
Awk
78 lines
2.3 KiB
Awk
# Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Library General Public License
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# as published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Library General Public License for more details.
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# You should have received a copy of the GNU Library General Public
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# License along with the GNU C Library; see the file COPYING.LIB. If
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# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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# Cambridge, MA 02139, USA.
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# errno.texinfo contains lines like:
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# @comment errno.h
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# @comment POSIX.1: Function not implemented
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# @deftypevr Macro int ENOSYS
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# @comment errno 78
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BEGIN {
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print "/* This file is generated from errno.texi by errlist.awk. */"
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print "";
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print "#ifndef HAVE_GNU_LD"
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print "#define _sys_nerr sys_nerr"
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print "#define _sys_errlist sys_errlist"
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print "#endif"
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print ""
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print "const char *_sys_errlist[] =";
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print " {";
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maxerrno = 0;
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print " \"Success\","
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}
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$1 == "@comment" && $2 == "errno.h" { errnoh=1; next }
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errnoh == 1 && $1 == "@comment" \
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{
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++errnoh;
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etext = $3;
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for (i = 4; i <= NF; ++i)
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etext = etext " " $i;
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next;
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}
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errnoh == 2 && $1 == "@deftypevr" && $2 == "Macro" && $3 == "int" \
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{
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e = $4; errnoh++; next;
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}
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errnoh == 3 && $1 == "@comment" && $2 == "errno" \
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{
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errno = $3 + 0;
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msgs[errno] = etext;
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names[errno] = e;
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if (errno > maxerrno) maxerrno = errno;
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next;
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}
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{ errnoh=0 }
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END {
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for (i = 1; i <= maxerrno; ++i)
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{
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if (names[i] == "")
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print " \"Reserved error " i "\",";
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else
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printf "%-40s/* %d = %s */\n", " \"" msgs[i] "\",", i, names[i];
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}
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print " };";
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print "";
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print "#include <errno.h>";
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printf "#if _HURD_ERRNOS != %d\n", maxerrno+1;
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print "#error errlist/errnos generation bug";
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print "#endif"
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printf "const int _sys_nerr = %d;\n", maxerrno+1;
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print "weak_alias (_sys_errlist, sys_errlist)"
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print "weak_alias (_sys_nerr, sys_nerr)"
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}
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