84 lines
3.5 KiB
Groff
84 lines
3.5 KiB
Groff
Subject: Mes 0.7 released
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I am pleased to announce the release of Mes 0.7, representing 32
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commits over 4 weeks. Mescc now behaves more like a regular C
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compiler: supporting -E, -c, -o options and with a more complete set
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of header files [stubs]; enough to work on compiling tinycc's tcc.c
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albeit a somewhat modified version[8].
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* About
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Mes aims to create full source bootstrapping for GuixSD: an
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entirely source-based bootstrap path. The target is to [have
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GuixSD] boostrap from a minimal, easily inspectable binary --that
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should be readable as source-- into something close to R6RS
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Scheme.
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It currently consists of a mutual self-hosting [close to Guile-]
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Scheme interpreter prototype in C and a Nyacc-based C compiler in
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[Guile] Scheme.
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The Scheme interpreter prototype (mes.c) has a Garbage Collector,
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a library of loadable Scheme modules-- notably Dominique Boucher's
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LALR[1], Pre-R6RS portable syntax-case[2] with R7RS ellipsis, Matt
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Wette's Nyacc[3] Guile's PEG[4] --and test suite just barely
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enough to support a simple REPL (repl.mes) and simple C-compiler
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(mescc.mes) that can produce the second initial ELF binary from
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binary from mes.c, in only about 2h30'.
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Mes was inspired by The Maxwell Equations of Software: LISP-1.5[5]
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-- John McCarthy page 13, GNU Guix's[6] source/binary packaging
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transparency and Jeremiah Orians's stage0[7] bootstrap project.
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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/repository/archive.tar.gz?ref=v0.7 -O mes-0.7.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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* Changes in 0.7 since 0.6
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** Core
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*** The minimal C reader is now always included; dependencies
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on i686-unknown-linux-gnu-gcc and binary read-0-32.mo have been
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dropped, these are now optional.
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** Language
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*** Mes reader now supports octal numbers #oXXX.
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*** 10 new functions
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current-output-port, getopt-long, negate, open-output-file,
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option-ref, set-current-output-port, string-rindex, string-suffix?,
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with-ouwith-output-to-file, with-output-to-port.
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** Mescc
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*** Mescc can now be installed and used alongside a gcc installation.
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*** Mescc can now handle const anywhere.
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*** Mescc now supports array fields in structs.
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*** Mescc now supports forward declarations and typedef.
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*** Mescc can now handle comments anywhere.
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*** Mescc now supports addition and substraction for enum field values.
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*** Mescc now supports anonymous enums.
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*** Mescc now supports all C99 header files needed to compile tcc.c.
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*** build: C sources are now preprocessed separately, then compiled and linked.
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*** build: mlibc and C sources are now compiled separately and then linked.
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*** mlibc has been moved from Scheme snippets into C.
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*** Mescc now supports -c, -D, -E, -I and -o options.
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**** open now supports optional third mode parameter.
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** Noteworthy bug fixes
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*** string-index now supports function predicate.
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*** number->string for radix > 10 now produces `a' instead of `:'.
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Greetings,
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janneke
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[1] https://github.com/schemeway/lalr-scm
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[2] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html
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[3] https://www.nongnu.org/nyacc/
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[4] https://www.gnu.org/software/guile/docs/master/guile.html/PEG-Parsing.html
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[5] http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf
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[6] https://www.gnu.org/software/guix/
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[7] https://github.com/oriansj/stage0
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[8] https://gitlab.com/janneke/tinycc
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