121 lines
4.7 KiB
Plaintext
121 lines
4.7 KiB
Plaintext
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Subject: GNU Mes 0.23 released
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<#secure method=pgpmime mode=sign>
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We are happy to announce the release of GNU Mes 0.23, representing 125
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commits over one year by four people.
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Mes was ported to ARM and can now be used in the GNU Guix Reduced Binary
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Seed bootstrap as described here
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https://guix.gnu.org/blog/2020/guix-further-reduces-bootstrap-seed-to-25/
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and now also for armhf-linux and aarch-linux. Work to integrate this
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into Guix is ongoing: tinycc and gcc-core-2.95.3 have been built.
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We are excited that the Nlnet Foundation is now sponsoring this work!
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Enjoy,
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Janneke and Danny.
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* About
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GNU Mes[0] is a Scheme interpreter and C compiler for bootstrapping the
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GNU System. Since version 0.22 it has again helped to halve the size of
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opaque, uninspectable binary seeds that are currently being used in the
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Reduced Binary Seed bootstrap[1] of GNU Guix[2]. The final goal is to
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help create a full source bootstrap as part of the bootstrappable
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builds[3] effort for UNIX-like operating systems.
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The Scheme interpreter is written in ~5,000 LOC of simple C, and the C
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compiler written in Scheme and these are mutual self-hosting. This
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mes.c is now being simplified to be transpiled by M2-Planet[4].
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Mes has a Garbage Collector, a library of loadable Scheme modules--
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notably Dominique Boucher's LALR[5], Pre-R6RS portable syntax-case[6]
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with R7RS ellipsis, Matt Wette's Nyacc[7] --and test suite, just
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enough to support a REPL and a C99 compiler: mescc.
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Mes+MesCC can compile an only lightly patched TinyCC[8] that is
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self-hosting. Using this tcc and the Mes C library we now have a
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Reduced Binary Seed bootstrap for the gnutools triplet: glibc-2.2.5,
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binutils-2.20.1, gcc-2.95.3. This is enough to bootstrap Guix for
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i686-linux, x86_64-linux, armhf-linux and aarch64-linux.
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Mes is inspired by The Maxwell Equations of Software: LISP-1.5[9] -- John
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McCarthy page 13, GNU Guix's source/binary packaging transparency and
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Jeremiah Orians's stage0[10] ~500 byte self-hosting hex assembler.
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We are very grateful to NLNet for sponsoring the Reduced Binary Seed
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bootstrap[11] and the ARM port[12].
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* Download
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git clone git://git.savannah.gnu.org/mes.git
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Here are the compressed sources and a GPG detached signature[*]:
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https://ftp.gnu.org/gnu/mes/mes-0.23.tar.gz
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https://ftp.gnu.org/gnu/mes/mes-0.23.tar.gz.sig
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Use a mirror for higher download bandwidth:
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https://ftpmirror.gnu.org/mes/mes-0.23.tar.gz
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https://ftpmirror.gnu.org/mes/mes-0.23.tar.gz.sig
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Here are the MD5 and SHA1 checksums:
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xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx mes-0.23.tar.gz
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xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx mes-0.23.tar.gz
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[*] Use a .sig file to verify that the corresponding file (without the
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.sig suffix) is intact. First, be sure to download both the .sig file
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and the corresponding tarball. Then, run a command like this:
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gpg --verify mes-0.23.tar.gz.sig
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If that command fails because you don't have the required public key,
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then run this command to import it:
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gpg --keyserver keys.gnupg.net --recv-keys 1A858392E331EAFDB8C27FFBF3C1A0D9C1D65273
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and rerun the 'gpg --verify' command.
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* Get informed, get involved
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See https://bootstrappable.org
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Join #bootstrappable on irc.freenode.net.
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* NEWS
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* Changes in 0.23 since 0.22
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** Core
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*** Mes and Mes C Library can now be built with GCC 10.x.
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** MesCC
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*** The Mes C Library now supports an armhf-linux bootstrap.
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*** MesCC now supports ARM.
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*** mini.c library was split into _exit.c, and _write.c.
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*** When building with GCC, -lgcc is now used.
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*** MesCC now has it's own support library libmescc.a (-lmescc).
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*** MesCC now requires mescc-tools-0.7.0 or later for ARM.
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*** MesCC can be now built with nyacc-1.00.2:
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note that nyacc-1.03.0 is not (backwards) compatible.
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*** MesCC can be built with Guile 3.0.x:
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See https://bugs.gnu.org/43831; use guild compile -O1 with Guile 3.0.x.
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*** MesCC now raises SIGABRT on abort, if supported.
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** Noteworthy bug fixes
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*** unreadchar on EOF is now a no-op.
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*** malloc now aligns the blocks it gives out to max_align_t.
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[0] https://www.gnu.org/software/mes
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[1] https://guix.gnu.org/blog/2020/guix-further-reduces-bootstrap-seed-to-25
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[2] https://www.gnu.org/software/guix
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[3] https://bootstrappable.org
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[4] https://github.com/oriansj/m2-planet
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[5] https://github.com/schemeway/lalr-scm
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[6] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html
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[7] https://www.nongnu.org/nyacc
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[8] https://gitlab.com/janneke/tinycc
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[9] http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf
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[10] https://savannah.nongnu.org/projects/stage0
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[11] https://nlnet.nl/project/GNUMes
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[12] https://nlnet.nl/project/GNUMes-arm
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