mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
111 lines
3.5 KiB
Awk
111 lines
3.5 KiB
Awk
# Copyright (C) 1991-2020 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 Lesser General Public
|
|
# License as published by the Free Software Foundation; either
|
|
# version 2.1 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
|
|
# Lesser General Public License for more details.
|
|
|
|
# You should have received a copy of the GNU Lesser General Public
|
|
# License along with the GNU C Library; if not, see
|
|
# <https://www.gnu.org/licenses/>.
|
|
|
|
# errno.texi contains lines like:
|
|
# @deftypevr Macro int ENOSYS
|
|
# @errno{ENOSYS, 78, Function not implemented}
|
|
# 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 "#include <libintl.h>";
|
|
print "";
|
|
print "#ifndef ERR_REMAP";
|
|
print "# define ERR_REMAP(n) n";
|
|
print "#endif";
|
|
print "";
|
|
|
|
print "#if !defined EMIT_ERR_MAX && !defined ERRLIST_NO_COMPAT";
|
|
print "# include <errlist-compat.h>";
|
|
print "#endif";
|
|
print "#ifdef ERR_MAX";
|
|
print "# define ERRLIST_SIZE ERR_MAX + 1";
|
|
print "#else"
|
|
print "# define ERR_MAX 0";
|
|
print "# define ERRLIST_SIZE";
|
|
print "#endif";
|
|
|
|
print "const char *const _sys_errlist_internal[ERRLIST_SIZE] =";
|
|
print " {";
|
|
print " [0] = N_(\"Success\"),"
|
|
}
|
|
|
|
/^@errno\{/ \
|
|
{
|
|
etext = $3;
|
|
for (i = 4; i <= NF; ++i)
|
|
etext = etext " " $i;
|
|
etext = substr(etext, 1, length(etext)-1)
|
|
e = substr($1, 8, length($1)-8)
|
|
errno = substr($2, 1, length($2)-1) + 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;
|
|
printf "# if %s > ERR_MAX\n", e;
|
|
print "# undef ERR_MAX";
|
|
printf "# define ERR_MAX %s\n", e;
|
|
print "# endif";
|
|
print "#endif";
|
|
errnoh = 0;
|
|
next;
|
|
}
|
|
errnoh == 4 \
|
|
{
|
|
# This magic tag in C comments gets them copied into libc.pot.
|
|
desc = desc "\nTRANS" ($0 != "" ? " " : "") $0; next
|
|
}
|
|
END {
|
|
print " };";
|
|
print "";
|
|
print "#define NERR \\";
|
|
print " (sizeof _sys_errlist_internal / sizeof _sys_errlist_internal [0])";
|
|
print "const int _sys_nerr_internal = NERR;"
|
|
print "";
|
|
print "#if IS_IN (libc) && !defined ERRLIST_NO_COMPAT";
|
|
print "# include <errlist-compat.c>";
|
|
print "#endif";
|
|
print "";
|
|
print "#ifdef EMIT_ERR_MAX";
|
|
print "void dummy (void)"
|
|
print "{ asm volatile (\" @@@ %0 @@@ \" : : \"i\" (ERR_REMAP (ERR_MAX))); }"
|
|
print "#endif";
|
|
}
|