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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.
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|---|---|---|
| .. | ||
| ape.lds | ||
| ape.mk | ||
| ape.S | ||
| apeinstall.sh | ||
| config.h | ||
| idata.internal.h | ||
| loader-elf.S | ||
| loader-macho.lds | ||
| loader-macho.S | ||
| loader.c | ||
| loader.h | ||
| loader.lds | ||
| macros.internal.h | ||
| mz.ansi | ||
| notice.inc | ||
| relocations.h | ||