1 # Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
4 # The GNU C Library is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU Lesser General Public
6 # License as published by the Free Software Foundation; either
7 # version 2.1 of the License, or (at your option) any later version.
9 # The GNU C Library is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # Lesser General Public License for more details.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with the GNU C Library; if not, write to the Free
16 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 # errno.texi contains lines like:
21 # @comment POSIX.1: Function not implemented
22 # @deftypevr Macro int ENOSYS
24 # Descriptive paragraph...
29 # Here we list the E* names that might be duplicate names for the
30 # same integer value on some systems. This causes the code below
31 # to generate ``#if defined (ALIAS) && ALIAS != ORIGINAL'' in the code,
32 # so the output does not presume that these are in fact aliases.
33 # We list here all the known potential cases on any system,
34 # so that the C source we produce will do the right thing based
35 # on the actual #define'd values it's compiled with.
36 alias["EWOULDBLOCK"]= "EAGAIN";
37 alias["EDEADLOCK"] = "EDEADLK";
38 alias["ENOTSUP"] = "EOPNOTSUPP";
40 print "/* This file is generated from errno.texi by errlist.awk. */"
42 print "#include <errno.h>";
43 print "#include <libintl.h>";
45 print "#ifndef SYS_ERRLIST";
46 print "# define SYS_ERRLIST _sys_errlist";
47 print "# define SYS_ERRLIST_ALIAS sys_errlist";
49 print "#ifndef SYS_NERR";
50 print "# define SYS_NERR _sys_nerr";
51 print "# define SYS_NERR_ALIAS sys_nerr";
53 print "#ifndef ERR_REMAP";
54 print "# define ERR_REMAP(n) n";
57 print "const char *const SYS_ERRLIST[] =";
59 print " [0] = N_(\"Success\"),"
61 $1 == "@comment" && $2 == "errno.h" { errnoh=1; next }
62 errnoh == 1 && $1 == "@comment" \
66 for (i = 4; i <= NF; ++i)
70 errnoh == 2 && $1 == "@deftypevr" && $2 == "Macro" && $3 == "int" \
72 e = $4; errnoh++; next;
74 errnoh == 3 && $1 == "@comment" && $2 == "errno" \
78 printf "#if defined (%s) && %s != %s\n", e, e, alias[e];
80 printf "#ifdef %s\n", e;
85 errnoh == 4 && $1 == "@end" && $2 == "deftypevr" \
87 printf "/*%s */\n", desc;
88 printf " [ERR_REMAP (%s)] = N_(\"%s\"),\n", e, etext;
95 # This magic tag in C comments gets them copied into libc.pot.
96 desc = desc "\nTRANS " $0; next
102 print "const int SYS_NERR = sizeof SYS_ERRLIST / sizeof SYS_ERRLIST [0];";
103 print "#ifdef SYS_ERRLIST_ALIAS";
104 print "weak_alias (_sys_errlist, SYS_ERRLIST_ALIAS)";
106 print "#ifdef SYS_NERR_ALIAS";
107 print "weak_alias (_sys_nerr, SYS_NERR_ALIAS)";