GNU Hurd 0.8, GNU Mach 1.7, GNU MIG 1.7 released.
We're pleased to announce new releases!
GNU Hurd 0.8, NEWS:
Version 0.8 (2016-05-18) The netfs library is using the lockless reference-counting primitives for both peropen and node objects now, and the global reference counting lock has been removed. The integer hashing library gained a new interface to use non-integer keys. It is now used in libdiskfs' and nfs' node cache, and the ftpfs translator. Several bugs in our native fakeroot tool have been fixed improving stability and correctness of the translation. The devnode translator and the hurd-slab library have been merged into this repository. The code has been cleaned up, and we fixed numerous bugs, most notably a crash in pfinet, a locking bug in libdiskfs, and an out-of-bounds access in ext2fs' block cache.
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The GNU Hurd is the GNU project's replacement for the Unix kernel. It is a collection of servers that run on the Mach microkernel to implement file systems, network protocols, file access control, and other features that are implemented by the Unix kernel or similar kernels (such as Linux). More detailed: documentation, what is the GNU Hurd.
GNU Mach 1.7, NEWS:
Version 1.7 (2016-05-18) The code has been updated to work with newer versions of GCC, and numerous bugs have been fixed throughout the code, including a pageout deadlock. The code uses integer types from <stdint.h> now instead of the old Mach types. The VM cache policy change has been merged. The kernel now caches unreferenced VM objects unconditionally instead of using a fixed limit. The physical page allocator of the X15 kernel has been integrated, and is now used directly by the slab allocator. This increases the kernel heap addressing important scalability issues. The gsync synchronization mechanism was added, similar to the Linux kernel's futexes, to allow efficient and powerful userland synchronization. Support for profiling kernel code from userland through sampling was added.
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GNU Mach is the GNU distribution of the Mach microkernel, upon which a GNU Hurd system is based. The microkernel provides an Inter Process Communication (IPC) mechanism that the Hurd uses to define interfaces for implementing in a distributed multi-server fashion the services a traditional operating system kernel provides. More detailed: documentation.
GNU MIG 1.7, NEWS:
Version 1.7 (2016-05-18) MIG now has a test suite. It includes a set of valid and invalid definition files that MIG will try to process. For valid definitions, GCC will compile the stubs to check if valid C code was generated. The generated code uses integer types from <stdint.h> now instead of the old Mach types. Code that was hard-coding the word size has been identified and fixed. Support for the obsolete kinds of RPC routines 'functions', 'procedures', and 'simple procedures' has been removed. MIG now emits code that casts objects translated from capabilities to the correct C type.
25d87f0271678d044a8af1f45492a96bee32e486 mig-1.7.tar.bz2 481dce92b8eb718231bf9d409c0e0c9337dc1f90 mig-1.7.tar.bz2.sig f1bd05d1b353653f49dbbb44a4624e65c7be0a2e mig-1.7.tar.gz 59f71517cd1be26635a27da423bcf75e2399a42e mig-1.7.tar.gz.sig
GNU MIG is the GNU distribution of the Mach 3.0 Interface Generator (MIG). This tool translates Remote Procedure Call (RPC) definition files to C code, and is required to compile any packages that are receiving or invoking RPCs, such as GNU Mach, GNU Hurd, and the GNU C Library (glibc) when compiled for the Hurd. More detailed: documentation.
Snapshot tarballs may be downloaded from ftp://alpha.gnu.org/gnu/hurd/, http://alpha.gnu.org/gnu/hurd/, or checked out of Git, http://git.savannah.gnu.org/cgit/hurd/glibc.git and http://git.savannah.gnu.org/cgit/hurd/libpthread.git. SHA1 checksums:
3722b7f52aac89c66f064e1e6d19ec9b92ffc9e0 glibc-2.19-hurd+libpthread-20160518.tar.bz2 69dfe1297013056b4b0d6436a1b3906c1bb67a52 glibc-2.19-hurd+libpthread-20160518.tar.bz2.sig 2795bacc85c799a028577089c422ff4ef9b876bc glibc-2.19-hurd+libpthread-20160518.tar.gz a7af1d2500f35413003f08801e258f3666dfcb87 glibc-2.19-hurd+libpthread-20160518.tar.gz.sig
The GNU C Library (glibc) implements a system's standard library functions (as described by ISO C, and POSIX, for example). An important part of the Hurd actually resides in glibc: here, the system interfaces are implemented on top of the Hurd IPC protocols. This is different to the Linux port, where most simple system interfaces are in fact simply forwarded to/implemented as system calls.
Many thanks to all the people who are helping!
If you want to give the Hurd a try, you may easily do so with Debian GNU/Hurd.
The GNU Hurd system currently runs on 32-bit x86 machines. To compile the
Hurd, you need a toolchain configured to target
i?86-gnu; you cannot use a
toolchain targeting GNU/Linux.
Please read the FAQ. Bug reports should be sent to bug-hurd or filed on http://savannah.gnu.org/bugs/?group=hurd. Requests for assistance should be sent to help-hurd or filed on http://savannah.gnu.org/support/?group=hurd. You can also find us on the Freenode IRC network in the #hurd channel.