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 │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚────────────────────────────────────────────────────────────────'>/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"
}