Ariadne Conill 08e8a41d6c | ||
---|---|---|
arch | ||
.gitignore | ||
.mailmap | ||
LICENSE | ||
Makefile | ||
README.md | ||
test_libucontext.c |
README.md
libucontext
libucontext
is a library which provides the ucontext.h
C API. Unlike other implementations,
it faithfully follows the kernel process ABI when doing context swaps.
Notably, when combined with gcompat
, it provides a fully compatible implementation of the ucontext
functions that are ABI compatible with glibc.
supported architectures
Adding support for new architectures is easy, but you need to know assembly language to do it.
Right now these archs are supported and should work on bare metal:
- x86
- x86_64
- armv6+ (
arm
) - aarch64
- s390x
- mips (O32 ABI only, like Alpine)
- mips64 (N64 ABI only, like Alpine)
These archs require kernel assistance and use a syscall:
- ppc
- ppc64 (ELFv2 ABI spec only, ELFv1 not supported)
building
libucontext
uses a simple makefile build system. You should define ARCH=
at build time, otherwise
the build system will attempt to guess using uname -m
.
$ make ARCH=x86_64
$ make ARCH=x86_64 check
$ make ARCH=x86_64 DESTDIR=out install
support
libucontext
is offered as part of the gcompat
project. Accordingly, please address all questions
and bug reports to gcompat@lists.adelielinux.org.