cosmopolitan/build/assemble
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

50 lines
1.1 KiB
Bash
Executable file

#!/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─────────────┘
#
# OVERVIEW
#
# GNU Assembler Veneer
#
# DESCRIPTION
#
# This script wraps normal assembler commands that're transparently
# passed-through. It adds ephemeral logging and directory creation.
#
# EXAMPLE
#
# TARGET=program build/assemble as -o program program.o
#
# SEE ALSO
#
# https://justine.storage.googleapis.com/perm/as.pdf
if [ ! -d o/third_party/gcc ]; then
third_party/gcc/unbundle.sh
fi
export LC_ALL=C
MKDIR=${MKDIR:-$(command -v mkdir) -p} || exit
if [ "$SILENT" = "0" ]; then
printf "%s\n" "$*" >&2
else
printf "$LOGFMT" "${ACTION:-OBJECTIFY.s}" "$TARGET" >&2
fi
if [ "$TARGET" ]; then
TARGETDIR="${TARGET%/*}"
if [ "$TARGETDIR" != "$TARGET" ] && [ ! -d "$TARGETDIR" ]; then
$MKDIR "$TARGETDIR" || exit 2
fi
fi
"$@" && exit
if [ "$TERM" = "dumb" ]; then
f='%s %s\r\n\r\n'
else
f='\033[91m%s\033[39m \033[94m%s\033[39m\r\n\r\n'
fi
printf "$f" "assemble failed:" "$*" >&2
exit 1