101 lines
3.8 KiB
Plaintext
101 lines
3.8 KiB
Plaintext
Subject: Mes 0.16 released
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I am pleased to announce the release of Mes 0.16, representing 27
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commits over 2 weeks.
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A most annoying ELF header bug was fixed that suddenly had all Mes
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binaries segfault before entering `_start' on Linux 4.17 and later.
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We now have binutils-2.20.1 and gcc-4.1.0, both compiled with
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gcc-2.95.3 and glibc-2.2.5.
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This reduced-binary-seed bootstrap still depends on these bootstrap
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binaries: BOOTSTRAP-GUILE, flex, bash, bzip2, coreutils, diffutils,
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gawk, grep, gzip, make, sed, tar, on the small binary seeds:
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tinycc-seed, mescc-seed and on the mes.M1 ASCII seed.
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Next targets:
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- build a Gcc 4.7 and Glibc 2.23
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- upstream the x86 Mes bootstrap to GuixSD
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- reduce the 1MB ASCII M1 seed to ~5000 LOC/~100KB of M2 source
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- revive Gash: a posix shell for Guile to reduce the bootstrap binary
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dependencies
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- and/or otherwise reduce the bootstrap binary dependencies
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Packages are available from Guix's wip-bootstrap branch.
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* About
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Mes[0] aims to help create full source bootstrapping for GuixSD[1] as
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part of the bootstrappable builds[2] effort.
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It currently consists of a mutual self-hosting Scheme interpreter
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prototype written in C and a Nyacc-based C compiler written in Scheme.
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This C prototype is being simplified[3] to be transpiled by M2-Planet[4].
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The Scheme interpreter prototype (mes.c) has a Garbage Collector, a
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library of loadable Scheme modules-- notably Dominique Boucher's LALR[5],
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Pre-R6RS portable syntax-case[6] with R7RS ellipsis, Matt Wette's Nyacc[7],
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Guile's PEG[8] --and test suite just barely enough to support a simple
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REPL and simple C-compiler: MesCC.
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Mes+MesCC can compile an only lighty 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-4.1.0.
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Mes is inspired by The Maxwell Equations of Software: LISP-1.5[10] --
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John McCarthy page 13, GNU Guix's source/binary packaging transparency
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and Jeremiah Orians's stage0[11] ~500 byte self-hosting hex assembler.
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* Download
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git clone https://gitlab.com/janneke/mes
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wget https://gitlab.com/janneke/mes/-/archive/v0.16/mes-0.16.tar.gz
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Mes runs from the source tree and can also be built, packaged and
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installed in Guix[SD] by the usual
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guix package -f guix.scm
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* Get informed, get involved
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Join #bootstrappable on irc.freenode.net.
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* Changes in 0.16 since 0.15
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** Core
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*** Support building with tcc, including Mes Lib C in-line assembly.
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*** core:execl now supports 1000 arguments.
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** MesCC
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*** Mes Lib C now bootstraps glibc-2.2.5, binutils-2.20.1, gcc-4.1.0.
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*** MesCC binaries now run on Linux 4.17 too, i.e. survive Linus' new `sane mmap limits.'
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*** MesCC now runs with mescc-tools 0.5 (no = in long options).
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**** 3 new C test
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88-strrchrc, 97-fopen.c, 98-fopen.c.
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** Noteworthy bug fixes
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*** strrchr now stops when it reaches start of string.
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*** fopen now return 0 upon failure. Supports binutils' hack: fd=-2 means `cached'.
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*** vfprintf, vsprintf now support precision and width on integers strings better.
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*** fread now produces ungetc'd chars too.
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*** memcmp now supports comparing 0 bytes, supporting binutils.
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*** The unused ELF header data section, identical to the text section, has been removed.
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Greetings,
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janneke
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[0] https://gitlab.com/janneke/mes
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[1] https://www.gnu.org/software/guix
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[2] http://bootstrappable.org
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[3] https://github.com/oriansj/mes-m2
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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://www.gnu.org/software/guile/docs/master/guile.html/PEG-Parsing.html
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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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