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# Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public License
# as published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Library General Public License for more details.
# You should have received a copy of the GNU Library General Public
# License along with the GNU C Library; see the file COPYING.LIB. If not,
# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
# errno.texi contains lines like:
# @comment errno.h
# @comment POSIX.1: Function not implemented
# @deftypevr Macro int ENOSYS
# @comment errno 78
# Descriptive paragraph...
# @end deftypevr
BEGIN {
# Here we list the E* names that might be duplicate names for the
# same integer value on some systems. This causes the code below
# to generate ``#if defined (ALIAS) && ALIAS != ORIGINAL'' in the code,
# so the output does not presume that these are in fact aliases.
# We list here all the known potential cases on any system,
# so that the C source we produce will do the right thing based
# on the actual #define'd values it's compiled with.
alias["EWOULDBLOCK"]= "EAGAIN";
alias["EDEADLOCK"] = "EDEADLK";
alias["ENOTSUP"] = "EOPNOTSUPP";
print "/* This file is generated from errno.texi by errlist.awk. */"
print "";
print "#include <errno.h>";
print "";
print "#ifndef SYS_ERRLIST";
print "# define SYS_ERRLIST _sys_errlist";
print "# define SYS_ERRLIST_ALIAS sys_errlist";
print "#endif";
print "#ifndef SYS_NERR";
print "# define SYS_NERR _sys_nerr";
print "# define SYS_NERR_ALIAS sys_nerr";
print "#endif";
print "#ifndef ERR_REMAP";
print "# define ERR_REMAP(n) n";
print "#endif";
print "";
print "const char *const SYS_ERRLIST[] =";
print " {";
print " [0] = N_(\"Success\"),"
}
$1 == "@comment" && $2 == "errno.h" { errnoh=1; next }
errnoh == 1 && $1 == "@comment" \
{
++errnoh;
etext = $3;
for (i = 4; i <= NF; ++i)
etext = etext " " $i;
next;
}
errnoh == 2 && $1 == "@deftypevr" && $2 == "Macro" && $3 == "int" \
{
e = $4; errnoh++; next;
}
errnoh == 3 && $1 == "@comment" && $2 == "errno" \
{
errno = $3 + 0;
if (alias[e])
printf "#if defined (%s) && %s != %s\n", e, e, alias[e];
else
printf "#ifdef %s\n", e;
errnoh = 4;
desc="";
next;
}
errnoh == 4 && $1 == "@end" && $2 == "deftypevr" \
{
printf "/*%s */\n", desc;
printf " [ERR_REMAP (%s)] = N_(\"%s\"),\n", e, etext;
print "#endif";
errnoh = 0;
next;
}
errnoh == 4 \
{
# This magic tag in C comments gets them copied into libc.pot.
desc = desc "\nTRANS " $0; next
}
{ errnoh=0 }
END {
print " };";
print "";
print "const int SYS_NERR = sizeof SYS_ERRLIST / sizeof SYS_ERRLIST [0];";
print "#ifdef SYS_ERRLIST_ALIAS";
print "weak_alias (_sys_errlist, SYS_ERRLIST_ALIAS)";
print "#endif";
print "#ifdef SYS_NERR_ALIAS";
print "weak_alias (_sys_nerr, SYS_NERR_ALIAS)";
print "#endif";
}
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