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GNU Mes is a Scheme interpreter and C compiler for bootstrapping the GNU System.
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Jan Nieuwenhuizen 5e5be32e6f
mescc: Mes C Library: Populate with function tests from scaffold. 
* .gitignore: Update.
* build-aux/bootstrap.sh.in: Update.
* build-aux/build-mes.sh: Update.
* build-aux/check-mescc.sh: Update.
* lib/tests/assert/50-assert.c: Move from scaffold/tests/50-assert.c.
* lib/tests/dirent/90-readdir.c: Move from scaffold/tests/99-readdir.c.
* lib/tests/dirent/readdir.dir: Move from scaffold/tests/readdir.dir.
* lib/tests/io/90-stat.c: Move from scaffold/tests/92-stat.c.
* lib/tests/mes/30-oputs.c: Move from scaffold/tests/31-oputs.c.
* lib/tests/mes/50-itoa.c: Move from scaffold/tests/51-itoa.c.
* lib/tests/posix/90-unsetenv.c: Move from scaffold/tests/94-unsetenv.c.
* lib/tests/setjmp/80-setjmp.c: Move from scaffold/tests/80-setjmp.c.
* lib/tests/signal/90-signal.c: Move from scaffold/tests/95-signal.c.
* lib/tests/stdio/70-printf-hello.c: Move from scaffold/tests/70-printf-hello.c.
* lib/tests/stdio/70-printf-simple.c: Move from scaffold/tests/70-printf-simple.c.
* lib/tests/stdio/70-printf.c: Move from scaffold/tests/70-printf.c.
* lib/tests/stdio/80-sscanf.c: Move from scaffold/tests/87-sscanf.c.
* lib/tests/stdio/90-fopen-append.c: Move from scaffold/tests/98-fopen.c.
* lib/tests/stdio/90-fopen.c: Move from scaffold/tests/97-fopen.c.
* lib/tests/stdio/90-fread-fwrite.c: Move from scaffold/tests/93-fread-fwrite.c.
* lib/tests/stdio/90-fseek.c: Move from scaffold/tests/91-fseek.c.
* lib/tests/stdlib/50-getenv.c: Move from lib/tests/stdlib/getenv.c.
* lib/tests/stdlib/50-malloc.c: Move from lib/tests/stdlib/malloc.c.
* lib/tests/stdlib/70-strtoull.c: Move from scaffold/tests/7j-strtoull.c.
* lib/tests/stdlib/80-qsort-dupes.c: Move from scaffold/tests/81-qsort-dupes.c.
* lib/tests/stdlib/80-qsort.c: Move from scaffold/tests/81-qsort.c.
* lib/tests/stdlib/90-strtol.c: Move from scaffold/tests/96-strto.c.
* lib/tests/string/30-strlen.c: Move from scaffold/tests/30-strlen.c.
* lib/tests/string/50-strcmp.c: Move from scaffold/tests/51-strcmp.c.
* lib/tests/string/50-strcpy.c: Move from scaffold/tests/53-strcpy.c.
* lib/tests/string/50-strncmp.c: Move from scaffold/tests/51-strncmp.c.
* lib/tests/string/70-strchr.c: Move from scaffold/tests/70-strchr.c.
* lib/tests/string/80-strncpy.c: Move from scaffold/tests/86-strncpy.c.
* lib/tests/string/80-strrchr.c: Move from scaffold/tests/88-strrchr.c.
* lib/tests/string/90-snprintf.c: Move from scaffold/tests/9a-snprintf.c.
* lib/tests/string/90-strpbrk.c: Move from scaffold/tests/90-strpbrk.c.
* lib/tests/string/90-strspn.c: Move from scaffold/tests/90-strspn.c.
 		2019-02-08 19:34:44 +01:00
build-aux mescc: Mes C Library: Populate with function tests from scaffold. 2019-02-08 19:34:44 +01:00
doc core: Initialize g_buf dynamically, add MES_STRING_MAX override. 2019-02-08 19:34:43 +01:00
guix Release 0.19. 2018-12-16 14:51:18 +01:00
include mescc: Support Bash: Add getppid. 2018-12-14 18:48:03 +01:00
lib mescc: Mes C Library: Populate with function tests from scaffold. 2019-02-08 19:34:44 +01:00
mes mes: Remove stray debugging newline output. 2019-02-08 19:34:43 +01:00
module mescc: Enhance POSIX command-line support, e.g. -DFOO=1. 2019-02-08 19:34:42 +01:00
scaffold mescc: Mes C Library: Populate with function tests from scaffold. 2019-02-08 19:34:44 +01:00
scripts build: Support building with Gash. 2018-11-24 21:07:31 +01:00
src core: Rename load_env to read_boot. 2019-02-08 19:34:43 +01:00
tests core: Add string-append. 2018-11-15 23:09:56 +01:00
.dir-locals.el emacs: Add disassembly helpers. 2018-09-16 11:07:39 +02:00
.gitignore mescc: Mes C Library: Populate with function tests from scaffold. 2019-02-08 19:34:44 +01:00
.guix.scm GNU Mes. 2018-07-22 14:24:36 +02:00
AUTHORS doc: Release update. 2018-10-20 09:53:44 +02:00
BOOTSTRAP doc: Release update. 2018-09-05 07:05:08 +02:00
COPYING Add Guile version of John McCarthy's Maxwell Equations of Software. 2016-05-28 16:26:06 +02:00
ChangeLog Add missing copyright headers and READMEs. 2018-07-26 19:17:12 +02:00
HACKING doc: Release update. 2018-10-20 09:53:44 +02:00
INSTALL doc: Release update. 2018-09-05 07:05:08 +02:00
NEWS doc: Release update. 2018-10-20 09:53:44 +02:00
README doc: Release update. 2018-10-20 09:53:44 +02:00
configure Release 0.19. 2018-12-16 14:51:18 +01:00
configure.sh Release 0.19. 2018-12-16 14:51:18 +01:00

README 

#+COMMENT:                                                            -*- org -*-
#+TITLE: About GNU Mes

#+SUBTITLE: Maxwell Equations of Software

[[https://www.gnu.org/software/mes][GNU Mes]] brings a [[http://joyofsource.com/reduced-binary-seed-bootstrap.html][Reduced Binary Seed bootstrap]] to [[https://www.gnu.org/software/guix][Guix]] and potentially
to any other interested GNU/Linux distribution, and aims to help
create a full source bootstrap as part of the [[http://bootstrappable.org][bootstrappable builds]]
effort.

It consists of a mutual self-hosting Scheme interpreter written in
~5,000 LOC of simple C and a Nyacc-based C compiler written in Scheme.
This mes.c is [[https://github.com/oriansj/mes-m2][being simplified]] to be transpiled by [[https://github.com/oriansj/m2-planet][M2-Planet]].

The Scheme interpreter (mes.c) has a Garbage Collector, a library of
loadable Scheme modules-- notably Dominique Boucher's [[https://github.com/schemeway/lalr-scm][LALR]], Pre-R6RS
[[https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html][portable syntax-case]] with R7RS ellipsis, Matt Wette's [[https://www.nongnu.org/nyacc][Nyacc]] --and test
suite just barely enough to support a simple REPL and simple
C-compiler: MesCC.

Mes+MesCC can compile an only [[http://gitlab.com/janneke/tinycc][lightly patched TinyCC]] that is
self-hosting.  Using this tcc and the Mes C library we now have a
Reduced Binary Seed bootstrap for the gnutools triplet: glibc-2.2.5,
binutils-2.20.1, gcc-2.95.3.  This is enough to bootstrap Guix for
i686-linux and x86_64-linux.

Mes is inspired by The Maxwell Equations of Software: [[http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf][LISP-1.5]] -- John
McCarthy page 13, GNU Guix's source/binary packaging transparency and
Jeremiah Orians's [[https://github.com/oriansj/stage0][stage0]] ~500 byte self-hosting hex assembler.

GNU Mes is free software, it is distributed under the terms of the GNU
General Public Licence version 3 or later.  See the file [[file:COPYING][COPYING]].

* Get it

   #+BEGIN_SRC bash
   git clone git://git.savannah.gnu.org/mes.git
   #+END_SRC

* Build it (see [[file:INSTALL][INSTALL]] for full instructions)

   #+BEGIN_SRC bash
   ./configure
   make all
   make check
   #+END_SRC

* REPL it

   #+BEGIN_SRC bash
   src/mes.gcc-out            # default (64 bit) gcc-compiled
   src/mes.mes-gcc-out        # 32 bit, gcc -nostdlib, Mes C Lib
   src/mes.mes-out            # 32 bit, bootstrapped, mes.M1+MesCC-compiled
   src/mes.x86_64-mes-gcc-out # 64 bit, gcc -nostdlib, Mes C Lib
   src/mes.x86_64-mes-out     # 64 bit, bootstrapped, mes.M1+MesCC-compiled
   #+END_SRC

* MesCC compiler

   #+BEGIN_SRC bash
   ./pre-inst env mescc -c scaffold/main.c
   #+END_SRC

* Bugs

    Please send Mes bug reports to [[mailto:bug-mes@gnu.org][bug-mes@gnu.org]].

* Links
  [0] https://www.gnu.org/software/mes
  [1] https://www.gnu.org/software/guix
  [2] http://bootstrappable.org
  [3] https://github.com/oriansj/mes-m2
  [4] https://github.com/oriansj/m2-planet
  [5] https://github.com/schemeway/lalr-scm
  [6] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html
  [7] https://www.nongnu.org/nyacc
  [8] http://gitlab.com/janneke/tinycc
  [9] [[http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf]]
  [10] https://github.com/oriansj/stage0

* Legalese
Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen <[[mailto:janneke@gnu.org][janneke@gnu.org]]>

  Copying and distribution of this file, with or without modification,
  are permitted in any medium without royalty provided the copyright
  notice and this notice are preserved.