cosmopolitan/libc/sysv/gen.sh

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/*bin/echo ' -*- mode:sh; indent-tabs-mode:nil; tab-width:8; coding:utf-8 -*-│
│vi: set net ft=sh ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program 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 │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚────────────────────────────────────────────────────────────────'>/dev/null #*/
mkdir -p $dir
rm -f $dir/*.s $dir/*.S
scall() {
{
echo ".include \"o/libc/sysv/macros.internal.inc\""
echo ".scall" "$@"
} >"$dir/${1/$/-}.s"
}
syscon() {
{
echo ".include \"libc/sysv/consts/syscon.inc\""
echo ".syscon" "$@"
} >"$dir/${2/$/-}.s"
}
sysstr() {
{
echo ".include \"o/libc/sysv/macros.internal.inc\""
echo ".sysstr $1 \"$2\""
} >"$dir/${1/$/-}.s"
}
errfun() {
NAME="$1"
ERRNO="$2"
{
printf '#include "libc/macros.h"\n.text.unlikely\n\n'
printf '%s:' "$NAME"
if [ "${#NAME}" -gt 6 ]; then
printf '\n'
fi
printf ' .leafprologue
.profilable
mov %s(%%rip),%%eax
mov %%eax,errno(%%rip)
push $-1
pop %%rax
.leafepilogue
.endfn %s,globl,hidden
' "$ERRNO" "$NAME"
} >"$dir/${1/$/-}.S"
}