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mescc: Use Nyacc frontend. 

* module/language/c99/compiler.mes: New file.
* module/language/c99/compiler.scm: Include it.
* module/mes/elf.mes: Move (mes-use-module) into cond-expand.
* module/mes/elf.scm: New file.
* module/mes/libc-i386.scm: New file.
* module/nyacc/lang/c99/parser.mes: Add missing module includes.
* module/nyacc/lang/util.mes: Add missing module include.
* scripts/mescc.mes: Use Nyacc.
* guile/mescc.scm: New file.
* GNUmakefile (guile-mescc): Run it.
This commit is contained in:
Jan Nieuwenhuizen 2016-12-31 09:03:07 +01:00
parent cd44770258
commit 7ec42c3cc7
20 changed files with 403 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
GNUmakefile
View File

@ -96,17 +96,14 @@ guile-check:
guile/nyacc-calc.scm
MAIN_C:=doc/examples/main.c
mescc: all
mescc: all $(MAIN_C)
rm -f a.out
scripts/mescc.mes $(MAIN_C)
scripts/mescc.mes $(MAIN_C) > a.out
./a.out; r=$$?; [ $$r = 42 ]
mescc.cat: all $(MES-0) module/rnrs/bytevectors.mes module/mes/elf.mes module/mes/libc-i386.mes module/language/c/lexer.mes module/language/c/parser.mes module/language/c/compiler.mes
echo '(compile)' | cat $(filter %.scm %.mes, $^) - > $@
guile-mescc: mescc.cat
guile-mescc: $(MAIN_C)
rm -f a.out
cat $(MAIN_C) | $(GUILE) -s $^ > a.out
guile/mescc.scm $(MAIN_C) > a.out
chmod +x a.out
./a.out; r=$$?; [ $$r = 42 ]

6
doc/examples/main.c
View File

@ -1,8 +1,8 @@
int main ()
int
main ()
{
int i; // = 0;
puts ("Hi Mes!\n");
for (i = 0; i < 4; ++i)
for (int i = 0; i < 4; ++i)
puts (" Hello, world!\n");
return 42;
}

1
guile/language Symbolic link
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@ -0,0 +1 @@
../module/language

1
guile/mes Symbolic link
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@ -0,0 +1 @@
../module/mes

1
guile/mes/nyacc
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@ -1 +0,0 @@
../../module/nyacc

44
guile/mescc.scm Executable file
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@ -0,0 +1,44 @@
#! /bin/sh
# -*-scheme-*-
export GUILE_AUTO_COMPILE=0
exec ${GUILE-guile} -L $(pwd)/guile -e '(mescc)' -s "$0" "$@"
!#
;;; Mes --- The Maxwell Equations of Software
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
;;; Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Mes. If not, see <http://www.gnu.org/licenses/>.
;; The Maxwell Equations of Software -- John McCarthy page 13
;; http://www.softwarepreservation.org/projects/LISP/book/LISP%201.5%20Programmers%20Manual.pdf
#!
Run with Guile-1.8:
GUILE='~/src/guile-1.8/build/pre-inst-guile --debug -q' guile/mescc.scm
!#
(define-module (mescc)
#:use-module (language c99 compiler)
#:use-module (ice-9 rdelim)
#:use-module (ice-9 pretty-print)
#:export (main))
(define (main arguments)
(let* ((files (cdr arguments))
(file (if (null? files) "doc/examples/main.c"
(car files))))
(with-input-from-file file
compile)))

1
guile/nyacc Symbolic link
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@ -0,0 +1 @@
../module/nyacc

11
guile/nyacc-calc.scm
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@ -1,6 +1,7 @@
#! /bin/sh
# -*-scheme-*-
exec ${GUILE-guile} -L $(pwd)/guile/mes -e '(nyacc)' -s "$0" "$@"
export GUILE_AUTO_COMPILE=0
exec ${GUILE-guile} -L $(pwd)/guile -e '(nyacc)' -s "$0" "$@"
!#
;;; Mes --- The Maxwell Equations of Software
@ -38,9 +39,13 @@ GUILE='~/src/guile-1.8/build/pre-inst-guile --debug -q' guile/nyacc.scm
;; notice and this notice are preserved. This file is offered as-is,
;; without any warranty.
(cond-expand
(guile-2)
(guile
(use-modules (ice-9 syncase))
(use-modules (ice-9 optargs))))
(define-module (nyacc)
#:use-module (ice-9 syncase) ;; guile-1.8
#:use-module (ice-9 optargs) ;; guile-1.8
#:use-module (nyacc lalr)
#:use-module (nyacc lex)
#:use-module (nyacc parse)

9
guile/nyacc.scm
View File

@ -1,6 +1,7 @@
#! /bin/sh
# -*-scheme-*-
exec ${GUILE-guile} -L $(pwd)/guile/mes -e '(nyacc)' -s "$0" "$@"
export GUILE_AUTO_COMPILE=0
exec ${GUILE-guile} -L $(pwd)/guile -e '(nyacc)' -s "$0" "$@"
!#
;;; Mes --- The Maxwell Equations of Software
@ -29,6 +30,12 @@ Run with Guile-1.8:
GUILE='~/src/guile-1.8/build/pre-inst-guile --debug -q' guile/nyacc.scm
!#
(cond-expand
(guile-2)
(guile
(use-modules (ice-9 syncase))
(use-modules (ice-9 optargs))))
(define-module (nyacc)
#:use-module (nyacc lang c99 parser)
#:use-module (ice-9 rdelim)

145
module/language/c99/compiler.mes Normal file
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@ -0,0 +1,145 @@
;;; -*-scheme-*-
;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of Mes.
;;;
;;; Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; compiler.mes produces an i386 binary from the C produced by
;;; Nyacc c99.
;;; Code:
(cond-expand
(guile
(set-port-encoding! (current-output-port) "ISO-8859-1"))
(mes
(mes-use-module (nyacc lang c99 parser))
(mes-use-module (mes pmatch))
(mes-use-module (mes elf))
(mes-use-module (mes libc-i386))))
(define (mescc)
(parse-c99 #:inc-dirs '()))
(define (write-any x)
(write-char (if (char? x) x (integer->char (if (>= x 0) x (+ x 256))))))
(define (ast:function? o)
(and (pair? o) (eq? (car o) 'fctn-defn)))
(define (.name o)
(pmatch o
((fctn-defn _ (ftn-declr (ident ,name) _) _) name)))
(define (.statements o)
(pmatch o
((fctn-defn _ (ftn-declr (ident ,name) _) (compd-stmt (block-item-list . ,statements))) statements)))
(define (statement->data o)
(pmatch o
((expr-stmt (fctn-call (p-expr (ident ,name))
(expr-list (p-expr (string ,string)))))
(string->list string))
((for (decl (decl-spec-list (type-spec (fixed-type ,type)))
(init-declr-list (init-declr (ident ,identifier)
(initzer (p-expr (fixed ,start))))))
(lt (p-expr (ident _)) (p-expr (fixed ,test)))
,step ;;(pre-inc (p-expr (ident i)))
,statement)
(statement->data statement))
(_ '())))
(define (statement->text data o)
(let ((offset (length data)))
(pmatch o
((expr-stmt (fctn-call (p-expr (ident ,name))
(expr-list (p-expr (string ,string)))))
(list (lambda (data) (i386:puts (+ data offset) (string-length string)))))
((for (decl (decl-spec-list (type-spec (fixed-type ,type)))
(init-declr-list (init-declr (ident ,identifier)
(initzer (p-expr (fixed ,start))))))
(lt (p-expr (ident _)) (p-expr (fixed ,test)))
,step ;;(pre-inc (p-expr (ident i)))
,statement)
(display "start:" (current-error-port))
(display start (current-error-port))
(newline (current-error-port))
(display "test:" (current-error-port))
(display test (current-error-port))
(newline (current-error-port))
;; (display "step:" (current-error-port))
;; (display step (current-error-port))
;; (newline (current-error-port))
;;
(display "for-statement:" (current-error-port))
(display statement (current-error-port))
(newline (current-error-port))
(let ((start (string->number start))
(test (string->number test))
(step 1)
(statement (car (statement->text data statement))))
(display "2start:" (current-error-port))
(display start (current-error-port))
(newline (current-error-port))
(display "2for-statement:" (current-error-port))
(display statement (current-error-port))
(newline (current-error-port))
(list (lambda (d) (i386:for start test step (statement d))))))
((return (p-expr (fixed ,value)))
(let ((value (string->number value)))
(list (lambda (data) (i386:exit value)))))
(_ '()))))
(define (function->text+data o)
(let loop ((statements (.statements o)) (text '()) (data '()))
(display "text:" (current-error-port))
(display text (current-error-port))
(newline (current-error-port))
(if (null? statements) (values text data)
(let* ((statement (car statements)))
(display "statement:" (current-error-port))
(display statement (current-error-port))
(newline (current-error-port))
(loop (cdr statements)
(append text (statement->text data statement))
(append data (statement->data statement)))))))
(define (text+data->exe text data)
(display "dumping to a.out:\n" (current-error-port))
(map write-any (make-elf (lambda (data)
(append-map (lambda (f) (f data)) text)) data)))
(define (compile)
(let* ((ast (mescc))
(functions (filter ast:function? (cdr ast)))
(main (find (lambda (x) (equal? (.name x) "main")) functions)))
(display "AST" (current-error-port))
(pretty-print ast (current-error-port))
(format (current-error-port) "functions~a\n" functions)
(format (current-error-port) "main~a\n" main)
(call-with-values
(lambda () (function->text+data main))
text+data->exe)))

40
module/language/c99/compiler.scm Normal file
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@ -0,0 +1,40 @@
;;; -*-scheme-*-
;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of Mes.
;;;
;;; Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(define-module (language c99 compiler)
#:use-module (srfi srfi-1)
#:use-module (system base pmatch)
#:use-module (ice-9 pretty-print)
#:use-module (mes elf)
#:use-module (mes libc-i386)
#:use-module (nyacc lang c99 parser)
#:export (compile))
(cond-expand
(guile-2)
(guile
(use-modules (ice-9 syncase)))
(mes))
(include-from-path "language/c99/compiler.mes")

0
module/rnrs/bytevectors.mes → module/mes/bytevectors.mes
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36
module/mes/bytevectors.scm Normal file
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@ -0,0 +1,36 @@
;;; -*-scheme-*-
;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of Mes.
;;;
;;; Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(define-module (mes bytevectors)
#:export (bytevector-u32-native-set!
bytevector-u16-native-set!
make-bytevector))
(cond-expand
(guile-2)
(guile
(use-modules (ice-9 syncase)))
(mes))
(include-from-path "mes/bytevectors.mes")

5
module/mes/elf.mes
View File

@ -24,7 +24,10 @@
;;; Code:
(mes-use-module (rnrs bytevectors))
(cond-expand
(guile)
(mes
(mes-use-module (mes bytevectors))))
(define (int->bv32 value)
(let ((bv (make-bytevector 4)))

37
module/mes/elf.scm Normal file
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@ -0,0 +1,37 @@
;;; -*-scheme-*-
;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of Mes.
;;;
;;; Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(define-module (mes elf)
#:use-module (mes bytevectors)
#:export (int->bv16
int->bv32
make-elf))
(cond-expand
(guile-2)
(guile
(use-modules (ice-9 syncase)))
(mes))
(include-from-path "mes/elf.mes")

39
module/mes/libc-i386.scm Normal file
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@ -0,0 +1,39 @@
;;; -*-scheme-*-
;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of Mes.
;;;
;;; Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Mes. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; libc-i386.mes defines C library routines
;;; Code:
(define-module (mes libc-i386)
#:use-module (mes elf)
#:export (i386:exit
i386:for
i386:puts))
(cond-expand
(guile-2)
(guile
(use-modules (ice-9 syncase)))
(mes))
(include-from-path "mes/libc-i386.mes")

14
module/mes/pmatch.scm
View File

@ -34,6 +34,20 @@
;;; Code:
;; (pmatch exp <clause> ...[<else-clause>])
;; <clause> ::= (<pattern> <guard> exp ...)
;; <else-clause> ::= (else exp ...)
;; <guard> ::= boolean exp | ()
;; <pattern> :: =
;; ,var -- matches always and binds the var
;; pattern must be linear! No check is done
;; _ -- matches always
;; 'exp -- comparison with exp (using equal?) REMOVED (August 8, 2012)
;; exp -- comparison with exp (using equal?)
;; (<pattern1> <pattern2> ...) -- matches the list of patterns
;; (<pattern1> . <pattern2>) -- ditto
;; () -- matches the empty list
(define-module (system base pmatch)
#:export-syntax (pmatch))

2
module/nyacc/lang/c99/parser.mes
View File

@ -23,6 +23,8 @@
;;; Code:
(mes-use-module (mes guile))
(mes-use-module (mes catch))
(mes-use-module (mes fluids))
(mes-use-module (mes pretty-print))
(mes-use-module (mes optargs))
(mes-use-module (srfi srfi-9-psyntax))

1
module/nyacc/lang/util.mes
View File

@ -23,6 +23,7 @@
;;; Code:
(mes-use-module (mes guile))
(mes-use-module (mes fluids))
(mes-use-module (mes optargs))
(mes-use-module (srfi srfi-1))
(include-from-path "nyacc/lang/util.scm")

21
scripts/mescc.mes
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@ -1,7 +1,8 @@
#! /bin/sh
# -*-scheme-*-
prefix=module/
cat ${1-$(dirname $(dirname $0))/share/doc/mes/examples/main.c} | cat $prefix/mes/base-0.mes $0 /dev/stdin | $(dirname $0)/mes $MES_FLAGS "$@" > a.out
echo '()' | cat $prefix/mes/base-0.mes $0 /dev/stdin | $(dirname $0)/mes $MES_FLAGS "$@"
#paredit:||
chmod +x a.out
exit $?
!#
@ -27,13 +28,21 @@ exit $?
;;; Commentary:
;;; mescc.mes is a proof-of-concept simplistic C compiler and linker
;;;
;;; Run with Guile:
;;; make guile-mescc
;;; Code:
(mes-use-module (language c compiler))
;;LALR
;;(mes-use-module (language c compiler))
;;Nyacc
(mes-use-module (mes guile))
(mes-use-module (language c99 compiler))
(compile)
(define (main arguments)
(let* ((files (cdr arguments))
(file (if (null? files) "doc/examples/main.c"
(car files))))
(with-input-from-file file
compile)))
(main '("mes"))
()