156 lines
6.3 KiB
Plaintext
156 lines
6.3 KiB
Plaintext
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Subject: GNU Mes 0.19 released
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<#secure method=pgpmime mode=sign>
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We are pleased to announce the release of GNU Mes 0.19, representing
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100 commits over 10 weeks.
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Mes has now brought the Reduced Binary Seed bootstrap to Guix (bootstrap
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a GNU/Linux system without binary GNU toolchain or equivalent) and work
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is ongoing to audit and verify this bootstrap path in NixOS.
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This release introduces strings as byte-array, hash-tables and native
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structs. While that does increase the footprint somewhat, it fixes
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our performance issue; tinycc is now compiled in ~8min (WAS: ~1h30).
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Next targets:
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- translate mes.c into unsnarfed mes.M2
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- use Gash to remove bash, coreutils&co, grep, sed, tar from the Guix
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bootstrap binaries
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- replace the NixOS bootstrap
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- use dietlibc, uClibc, ... for bootstrapping GNU (bash, binutils,
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gcc, tar) and remove Mes C lib+gnu?
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- bootstrap gcc-3.x or 4.x directly, drop initial gcc-2.95.3 target?
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- have M1+hex2 create gcc/tcc-usable object files? archives?
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- Debian?
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- ARM, the Hurd?
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Packages are available from Guix's core-updates branch.
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* About
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GNU Mes[0] brings a Reduced Binary Seed bootstrap[1] to Guix[2] and
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potentially to any other interested GNU/Linux distribution, and aims
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to help create a full source bootstrap as part of the
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bootstrappable builds[3] effort.
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It consists of a mutual self-hosting Scheme interpreter written in
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~5,000 LOC of simple C and a Nyacc-based C compiler written in Scheme.
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This mes.c is being simplified[4] to be transpiled by M2-Planet[5].
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The Scheme interpreter (mes.c) has a Garbage Collector, a library of
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loadable Scheme modules-- notably Dominique Boucher's LALR[6], Pre-R6RS
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[portable syntax-case[7] with R7RS ellipsis, Matt Wette's Nyacc[8] --and test
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suite just barely enough to support a simple REPL and simple
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C-compiler: MesCC.
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Mes+MesCC can compile an only lightly patched TinyCC[9] 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 and x86_64-linux.
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Mes is inspired by The Maxwell Equations of Software: LISP-1.5[10] -- John
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McCarthy page 13, GNU Guix's source/binary packaging transparency and
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Jeremiah Orians's stage0[11] ~500 byte self-hosting hex assembler.
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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-0.19.tar.gz
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https://ftp.gnu.org/gnu/mes/mes-0.19.tar.gz.sig
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Use a mirror for higher download bandwidth:
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https://ftpmirror.gnu.org/mes/mes-0.19.tar.gz
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https://ftpmirror.gnu.org/mes/mes-0.19.tar.gz.sig
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Here are the MD5 and SHA1 checksums:
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99e134df87adc5fc5fd2c04941929c23 mes-0.19.tar.gz
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c9781b3b6a814acc985c2ac68caa111a56583bca mes-0.19.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-0.19.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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Mes runs from the source tree and can also be built, packaged and
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installed in Guix from a git checkout by running
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guix package -f .guix.scm
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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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* Changes in 0.19 since 0.18
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** Core
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*** The build system has been simplified.
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*** Mes now prints a backtrace upon error.
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*** Performance has been improved 2-8 times, making Mes 2-10 times slower than Guile.
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*** Mes now supports a module type and uses a `boot-module'.
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*** Mes now supports a hash_table type.
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*** Mes now supports a struct type.
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*** Mes now supports building a %bootstrap-mes seed from Guix.
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** Language
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*** Records are now implemented using struct (WAS: vector).
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*** 44 new functions
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ceil, char-downcase, char-set-adjoin, char-set-complement,
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char-upcase, current-time, delete-file, dup, dup2, file-exists?,
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floor, frame-printer, get-internal-run-time, getcwd, gettimeofday,
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hash, hash-ref, hash-set!, hash-table-printer, hashq,
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hashq-get-handle, hashq-ref, hashq-set, inexact->exact,
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make-hash-table, make-stack, make-struct, module-define!,
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module-printer, module-ref, module-variable, read-line, round,
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stack-length, stack-ref, string-downcase, string-tokenize,
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string-upcase, struct-length, struct-ref, struct-set! struct-vtable,
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struct-vtable, with-error-to-file.
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** MesCC
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*** Assembly defines have been cleaned-up: duplicates deleted, missing added, wrong fixed.
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*** MesCC now supports compiling GNU Bash and GNU Tar.
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**** 6 New functions
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getegid, geteuid, getppid, setgid, setuid, sigdelset, sigprocmask.
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**** 22 New macros
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EACCES, ENOSPC, ESPIPE, INT16_MAX, INT16_MIN, INT32_MAX, INT32_MIN,
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INT64_MAX, INT64_MIN, INT8_MAX, INT8_MIN, LLONG_MAX, LLONG_MIN,
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SIZE_MAX SYS_getegid, SYS_geteuid, SYS_setgid SYS_setuid, S_IRGRP,
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S_IROTH, S_IRWXG, S_IRWXO S_ISGID, S_ISUID, S_IWGRP, S_IWOTH, S_IXGRP,
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S_IXOTH, UINT16_MAX, UINT32_MAX, UINT64_MAX, UINT8_MAX,
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_POSIX_VERSION.
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** Noteworthy bug fixes
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*** Mes now supports characters #\xNN.
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*** Mes now supports assq-ref and assoc-ref with alist == #f.
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*** Mes now supports \xNN in strings. This allows using Nyacc-0.86.0.
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*** MesCC now supports the unary plus operator.
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*** MesCC now supports the `U' integer suffix.
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*** MesCC now comes with INTnn_MIN/MAX, UINTnn defines in stdint.h.
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*** MesCC now always exits non-zero when assembler or linker fail.
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Greetings,
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janneke
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[0] https://www.gnu.org/software/mes
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[1] http://joyofsource.com/reduced-binary-seed-bootstrap.html
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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/mes-m2
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[5] https://github.com/oriansj/m2-planet
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[6] https://github.com/schemeway/lalr-scm
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[7] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html
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[8] https://www.nongnu.org/nyacc
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[9] https://gitlab.com/janneke/tinycc
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[10] http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf
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[11] https://github.com/oriansj/stage0
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