94 lines
4 KiB
Groff
94 lines
4 KiB
Groff
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Subject: Mes 0.9 released
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I am pleased to announce the release of Mes 0.9, representing 107
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commits over 5 weeks. Mescc now compiles to a surprisingly readable
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stage0 M1 macro assembler output format. Mescc now compiles a
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modified TinyCC into a running [mostly segfaulting] executable. This
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is a major milestone as tcc can compile GCC.
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* About
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Mes[0] aims to create full source bootstrapping for GuixSD[1] as
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part of the bootstrappable builds[2] project.
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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. This C prototype will be rewritten in stage0[3]
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M1 assembly (or possibly stage2 slow-LISP, or ...).
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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[4], Pre-R6RS portable syntax-case[5] with R7RS ellipsis, Matt
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Wette's Nyacc[6], Guile's PEG[7] --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).
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The simple C compiler can compile a modified TinyCC[8]. This
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needs more work. A gcc-compiled tcc is known[9] to compile GCC.
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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
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transparency and Jeremiah Orians's stage0 ~300 byte self-hosting
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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/repository/archive.tar.gz?ref=v0.9 -O mes-0.9.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 0.9 since 0.8
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** Core
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*** Mes now builds better in non-Guix[SD] legacy distros/environments. Thanks, rain1!
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** Mescc
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*** Mescc now compiles a modified tinycc into a running [mostly segfaulting] tcc.mes.
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https://gitlab.com/janneke/tinycc branch wip-mescc.
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*** Mescc now supports locals stack frame larger than 1 byte offset.
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*** Mescc now supports incomplete struct initializers {0}.
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*** Mescc now supports >>=, <<=, ^=, ~.
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*** Mescc now supports the comma operator.
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*** Mescc now supports mullti-line string initializers.
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*** Mescc now supports unions.
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*** Mescc now supports arrays in structs.
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*** Mescc now supports structs in structs.
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*** Mescc has been refactored to use records.
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*** Mescc now builds and runs with Guile-2.0 (legacy distro support, not recommended).
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*** Mescc now bundles tinycc's test2 test suite, passes one more test [34/55 pass].
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*** Mescc now has an incremental test suite consisting of 56 tests.
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*** Mescc now supports stdarg variable argument lists.
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*** Mescc now has __GNUC__ unset, #f (WAS: 0).
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*** Mescc now depends on Nyacc 0.80.3.
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*** Mescc now depends on M1 from MESCC_Tools v0.2.
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*** Mescc now compiles to M1 object files.
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**** 7 new mlibc functions
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calloc, close, getcwd, lseek, sprintf, unlink, vprintf.
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**** 31 new mlibc stubs
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execvp, fclose, fdopen, fflush, fopen, fprintf, fread, free, fseek,
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ftell, fwrite, localtime, longjmp, memcpy, memmove, memmove, memset,
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qsort, remove, setjump, snprintf, sscanf, strchr, strrchr, strstr,
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strtol, strtoll, strtoul, strtoull, time, vnsprintf.
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**** 10 new header files
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alloca.h, float.h, libgen.h, locale.h, stdbool.h, stddef.h, stdint.h,
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stdnoreturn.h, sys/select.h, sys/wait.h.
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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/stage0
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[4] https://github.com/schemeway/lalr-scm
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[5] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html
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[6] https://www.nongnu.org/nyacc/
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[7] https://www.gnu.org/software/guile/docs/master/guile.html/PEG-Parsing.html
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[8] https://gitlab.com/janneke/tinycc
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[9] https://lists.gnu.org/archive/html/tinycc-devel/2017-05/msg00103.html
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[10] http://www.softwarepreservation.org/projects/LISP/book/LISP%25201.5%2520Programmers%2520Manual.pdf
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