109 lines
3.6 KiB
Bash
109 lines
3.6 KiB
Bash
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/*bin/echo ' -*- mode:sh; indent-tabs-mode:nil; tab-width:8; coding:utf-8 -*-│
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│vi: set net ft=sh ts=2 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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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚────────────────────────────────────────────────────────────────'>/dev/null #*/
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MADEDIRS=
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mkdir -p libc/nt/kernel32 &&
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touch libc/nt/kernel32/boop.s &&
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rm -f libc/nt/*/*.s ||
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exit
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imp() {
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NAME="$1"
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ACTUAL="$2"
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DLL="$3"
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HINT="$4"
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ARITY="$5"
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if [ "$MADEDIRS" != "${MADEDIRS#*$3}" ]; then # ← sre interview question
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mkdir -p "libc/nt/$3"
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MADEDIRS="$MADEDIRS $3"
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fi
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{
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# Generate Portable Executable import data structures
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if [ "$DLL" = "ntdll" ]; then
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echo ".include \"o/libc/nt/ntdllimport.inc\""
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echo ".ntimp $ACTUAL"
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else
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echo ".include \"o/libc/nt/codegen.inc\""
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echo ".imp $DLL,__imp_$ACTUAL,$ACTUAL,$HINT"
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fi
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# Generate System Five ABI translating thunks
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if [ -n "$NAME" ]; then
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case "$ARITY" in
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0) thunk0 "$NAME" "$ACTUAL" "$NAME" ;;
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1) thunk1 "$NAME" "$ACTUAL" "$NAME" ;;
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2|3|4) thunk "$NAME" "$ACTUAL" __sysv2nt "$NAME" ;;
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5|6) thunk "$NAME" "$ACTUAL" __sysv2nt6 "$NAME" ;;
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7|8) thunk "$NAME" "$ACTUAL" __sysv2nt8 "$NAME" ;;
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9|10) thunk "$NAME" "$ACTUAL" __sysv2nt10 "$NAME" ;;
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11|12) thunk "$NAME" "$ACTUAL" __sysv2nt12 "$NAME" ;;
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13|14) thunk "$NAME" "$ACTUAL" __sysv2nt14 "$NAME" ;;
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esac
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fi
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} >libc/nt/$DLL/$ACTUAL.s
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}
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thunk() {
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printf '
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.text.windows
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%s:
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push %%rbp
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mov %%rsp,%%rbp
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.profilable
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mov __imp_%s(%%rip),%%rax
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jmp %s
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.endfn %s,globl
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.previous
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' "$@"
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}
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thunk0() {
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printf '
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.text.windows
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%s:
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push %%rbp
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mov %%rsp,%%rbp
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.profilable
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sub $32,%%rsp
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call *__imp_%s(%%rip)
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leave
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ret
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.endfn %s,globl
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.previous
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' "$@"
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}
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thunk1() {
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printf '
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.text.windows
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%s:
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push %%rbp
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mov %%rsp,%%rbp
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.profilable
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mov %%rdi,%%rcx
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sub $32,%%rsp
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call *__imp_%s(%%rip)
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leave
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ret
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.endfn %s,globl
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.previous
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' "$@"
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}
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