mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 03:27:39 +00:00
110 lines
3.7 KiB
Bash
110 lines
3.7 KiB
Bash
/*bin/echo ' -*- mode:sh; indent-tabs-mode:nil; tab-width:8; coding:utf-8 -*-│
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│ vi: set et ft=sh ts=8 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚────────────────────────────────────────────────────────────────'>/dev/null #*/
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mkdir -p $dir
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rm -f $dir/*.s $dir/*.S
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IFS=","
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if [ x"$(((0x8d18fc8d128e6807 & 0x7ff000) >> 12))" != x230 ]; then
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echo "error: $SHELL does not support bitwise expressions" >&2
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exit 1
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fi
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scall() {
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{
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name=$1
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amd=$2
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arm_linux=$(($3 + 0))
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arm_xnu=$((($amd & 0xfff000) >> 12))
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arm_freebsd=$((($amd & 0x000000fff0000000) >> 28))
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if [ $arm_xnu != 4095 ]; then
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arm_xnu=$(($arm_xnu & 0xfff))
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fi
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shift 3
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set -- "$name" "$amd" "$arm_linux" "$arm_xnu" "$arm_freebsd" "$*"
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echo "#include \"libc/sysv/macros.internal.h\""
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echo ".scall" "$*"
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} >"$dir/${1/$/-}.S"
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}
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syscon() {
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{
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echo "#include \"libc/sysv/consts/syscon.internal.h\""
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echo ".syscon" "$*"
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if [ -f "libc/sysv/dos2errno/${2/$/-}.S" ]; then
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echo "#ifdef __x86_64__"
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echo ".yoink kDos2Errno.${2/$/-}"
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echo "#endif"
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fi
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} >"$dir/${2/$/-}.S"
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}
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sysstr() {
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{
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echo "#include \"libc/sysv/macros.internal.h\""
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echo ".sysstr $1 \"$2\""
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} >"$dir/${1/$/-}.S"
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}
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errfun() {
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NAME="$1"
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ERRNO="$2"
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{
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printf '#include "libc/macros.internal.h"\n.text.unlikely\n\n'
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printf '\t.ftrace1\n'
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printf '%s:\n' "$NAME"
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printf '\t.ftrace2\n'
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printf '#ifdef __x86_64__
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.leafprologue
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mov %s(%%rip),%%ecx
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jmp __errfun
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#elif defined(__aarch64__)
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adrp x1,%s
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ldrsw x0,[x1,#:lo12:%s]
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b __errfun
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#else
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#error "unsupported architecture"
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#endif
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.endfn %s,globl,hidden
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' "$ERRNO" "$ERRNO" "$ERRNO" "$NAME"
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} >"$dir/${1/$/-}.S"
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}
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dos() {
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DOS="$1"
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UNIX="$2"
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if ! [ -f "$dir/${UNIX/$/-}.S" ]; then
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cat <<EOF >"$dir/${UNIX/$/-}.S"
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// generated by libc/sysv/dos2errno.sh
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#include "libc/nt/errors.h"
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#ifndef __x86_64__
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.end
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#endif
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.macro .e doscode systemv
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.short \doscode
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.long \systemv
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.endm
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.section .sort.rodata.dos2errno.2,"a",@progbits
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.globl kDos2Errno.${UNIX}
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.type kDos2Errno.${UNIX},@object
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kDos2Errno.${UNIX}:
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EOF
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fi
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printf %s\\n " .e ${DOS},${UNIX}" >>"$dir/${UNIX/$/-}.S"
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}
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