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db0d8dd806
The "no modify self" variant of Actually Portable Executable is now
supported on all platforms. If you use `$(APE_NO_MODIFY_SELF)` then
ld.bfd will embed a 4096 byte ELF binary and a 4096 byte Macho file
which are installed on the fly to ${TMPDIR:-/tmp}, which enables us
launch the executable, without needing to copy the whole executable
To prevent it from copying a tiny executable to your temp directory
you need to install the `ape` command (renamed from ape-loader), to
a system path. For example:
# FreeBSD / NetBSD / OpenBSD
make -j8 o//ape/ape
cp o//ape/ape /usr/bin/ape
# Mac OS
# make -j8 o//ape/ape.macho
curl https://justine.lol/ape.macho >/usr/bin/ape
chmod +x /usr/bin/ape
On Linux you can get even more performance with the new binfmt_misc
support which makes launching non-modifying APE binaries as fast as
launching ELF executables. Running the following command:
# Linux
ape/apeinstall.sh
Will copy APE loader to /usr/bin/ape and register with binfmt_misc
Lastly, this change also fixes a really interesting race condition
with OpenBSD thread joining.
56 lines
1 KiB
Bash
Executable file
56 lines
1 KiB
Bash
Executable file
#!/bin/sh
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#
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# OVERVIEW
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#
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# System Sanity Check
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#
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# DESCRIPTION
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#
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# This script is launched at the start of Makefile to detect if
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# binfmt_misc was tuned to launch 'MZ' shell scripts under WINE
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if [ x`uname -s` != xLinux ]; then
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cat <<'EOF' >&2
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ERROR
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Want Linux Build Environment
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DETAILS
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Cosmopolitan builds binaries that run on all major platforms.
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You need to compile them on Linux, using any distro you like.
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Consider setting up Alpine, Debian, or Ubuntu in a VMWare VM.
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EOF
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kill $1
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exit 1
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fi
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build/sanitycheck2
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if [ $? -ne 123 ]; then
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cat <<'EOF' >&2
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ERROR
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Thompson Shell Backwards Compatibility Issue Detected
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DETAILS
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Your system has likely been configured to use binfmt_misc and wine.
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You need to run the command below which will install a /usr/bin/ape
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program and then register it with binfmt_misc. See ape/loader.c for
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source code and technical details.
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WORKAROUND
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ape/apeinstall.sh
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SEE ALSO
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https://justine.storage.googleapis.com/ape.html
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EOF
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kill $1
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exit 1
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fi
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