cosmopolitan/build/zipobj
Justine Tunney f213556366 Add binfmt_misc workaround detector to builds
This is a recently introduced Linux Kernel feature that gives people
like Debian package mantainers the power to arbitrarily redefine how
executables are interpreted by the kernel. If your system gets tuned
this way and you're not able to disable it, then you need to restore
default behavior for the APE MZqFpD prefix as follows:

    sudo sh -c "echo ':APE:M::MZqFpD::/bin/sh:' >/proc/sys/fs/binfmt_misc/register"

This prefix will cover all .com executables built with this tooling.
Please don't run the above command unless you're certain you need it.
See #2 for additional context.
2020-08-31 20:09:23 -07:00

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#!/bin/sh
#-*-mode:sh;indent-tabs-mode:nil;tab-width:2;coding:utf-8-*-┐
#───vi: set net ft=sh ts=2 sts=2 fenc=utf-8 :vi─────────────┘
MKDIR=${MKDIR:-$(command -v mkdir) -p} || exit
CP=${CP:-$(command -v cp) -f} || exit
SED=${SED:-$(command -v sed)} || exit
MODE=
OUT=
FIRST=1
OUTARG=0
for x; do
if [ $FIRST -eq 1 ]; then
set --
FIRST=0
elif [ $OUTARG -eq 1 ]; then
OUTARG=0
OUT="$x"
fi
case "$x" in
-o)
OUTARG=1
;;
esac
set -- "$@" "$x"
done
OUTDIR="${OUT%/*}"
if [ "$OUTDIR" != "$OUT" ] && [ ! -d "$OUTDIR" ]; then
$MKDIR "$OUTDIR" || exit 2
fi
if [ -x "o/$MODE/tool/build/zipobj.com.dbg" ]; then
set -- "o/$MODE/tool/build/zipobj.com.dbg" "$@"
else
if [ ! -x o/build/bootstrap/zipobj.com ]; then
$MKDIR o/build/bootstrap &&
$CP -a build/bootstrap/zipobj.com \
o/build/bootstrap/zipobj.com || exit
fi
set -- o/build/bootstrap/zipobj.com "$@"
fi
if [ "$SILENT" = "0" ]; then
printf "%s\n" "$*" >&2
else
printf "$LOGFMT" "${ACTION:-ZIPOBJ}" "$3" >&2
fi
exec "$@"