1 files changed, 110 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/gnu/errlist.awk b/REORG.TODO/sysdeps/gnu/errlist.awk
new file mode 100644
index 0000000000..d5a0555114
--- /dev/null
+++ b/REORG.TODO/sysdeps/gnu/errlist.awk
@@ -0,0 +1,110 @@
+# Copyright (C) 1991-2017 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
+# <http://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";
+}