mes/module/mescc.scm
Jan Nieuwenhuizen 115feda4fc
mescc: Ignore -fnobuiltin, -nostdinc for GCC compatibility.
* module/mescc.scm (parse-opts): Add -fnobuiltin, -nostdinc.
(mescc:main): Ignore them.
2019-05-29 16:44:31 +02:00

159 lines
6.1 KiB
Scheme

;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU 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.
;;;
;;; GNU 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 GNU Mes. If not, see <http://www.gnu.org/licenses/>.
(define-module (mescc)
#:use-module (srfi srfi-1)
#:use-module (ice-9 getopt-long)
#:use-module (mes misc)
#:use-module (mescc mescc)
#:export (mescc:main))
(cond-expand
(mes
(define (set-port-encoding! port encoding) #t)
(mes-use-module (mes guile))
(mes-use-module (mes misc))
(mes-use-module (mes getopt-long))
(mes-use-module (mes display))
(mes-use-module (mescc mescc))
)
(guile
(define-macro (mes-use-module . rest) #t)))
(define %prefix (getenv "%prefix"))
(define %version (getenv "%version"))
(when (and=> (getenv "V") (lambda (v) (> (string->number v) 1)))
(format (current-error-port) "mescc[~a]...\n" %scheme))
(define (unclump-single o)
(cond ((string-prefix? "--" o) (list o))
((and (string-prefix? "-" o)
(> (string-length o) 2)
(not (eq? (string-ref o 2) #\space)))
(list (substring o 0 2)
(substring o 2)))
(else (list o))))
(define (parse-opts args)
(let* ((option-spec
'((align)
(assemble (single-char #\c))
(base-address (value #t))
(compile (single-char #\S))
(define (single-char #\D) (value #t))
(debug-info (single-char #\g))
(dumpmachine)
(fno-builtin)
(help (single-char #\h))
(include (single-char #\I) (value #t))
(library-dir (single-char #\L) (value #t))
(library (single-char #\l) (value #t))
(machine (single-char #\m) (value #t))
(nodefaultlibs)
(nostartfiles)
(nostdinc)
(nostdlib)
(preprocess (single-char #\E))
(std (value #t))
(output (single-char #\o) (value #t))
(optimize (single-char #\O) (value #t))
(version (single-char #\V))
(verbose (single-char #\v))
(write (single-char #\w) (value #t))
(language (single-char #\x) (value #t))))
(options (getopt-long args option-spec))
(help? (option-ref options 'help #f))
(files (option-ref options '() '()))
(usage? (and (not help?) (null? files)))
(version? (option-ref options 'version #f)))
(cond ((option-ref options 'dumpmachine #f)
(display "x86-mes")
(exit 0))
(version? (format #t "mescc (GNU Mes) ~a\n" %version) (exit 0))
(else
(and (or help? usage?)
(format (or (and usage? (current-error-port)) (current-output-port)) "\
Usage: mescc [OPTION]... FILE...
--align align globals
-dumpmachine display the compiler's target processor
--base-address=ADRRESS
use BaseAddress ADDRESS [0x1000000]
-D DEFINE[=VALUE] define DEFINE [VALUE=1]
-E preprocess only; do not compile, assemble or link
-g add debug info [GDB, objdump] TODO: hex2 footer
-h, --help display this help and exit
-I DIR append DIR to include path
-L DIR append DIR to library path
-l LIBNAME link with LIBNAME
-m BITS compile for BITS bits [32]
-nodefaultlibs do not use libc.o when linking
-nostartfiles do not use crt1.o when linking
-nostdlib do not use crt1.o or libc.o when linking
-o FILE write output to FILE
-O LEVEL use optimizing LEVEL
-S preprocess and compile only; do not assemble or link
--std=STANDARD assume that the input sources are for STANDARD
-v, --version display version and exit
-w,--write=TYPE dump Nyacc AST using TYPE {pretty-print,write}
-x LANGUAGE specify LANGUAGE of the following input files
Ignored for GCC compatibility
-fno-builtin
-nostdinc
Environment variables:
MES=BINARY run on mes-executable BINARY {mes,guile}
MES_DEBUG=LEVEL show debug output with verbosity LEVEL {0..5}
NYACC_TRACE=1 show Nyacc progress
Report bugs to: bug-mes@gnu.org
GNU Mes home page: <http://gnu.org/software/mes/>
General help using GNU software: <http://gnu.org/gethelp/>
")
(exit (or (and usage? 2) 0)))
options))))
(define (mescc:main args)
(let* ((single-dash-options '("-dumpmachine"
"-fno-builtin"
"-nodefaultlibs"
"-nostartfiles"
"-nostdinc"
"-nostdlib"
"-std"))
(args (map (lambda (o)
(if (member o single-dash-options) (string-append "-" o)
o))
args))
(args (append-map unclump-single args))
(options (parse-opts args))
(options (acons 'prefix %prefix options))
(preprocess? (option-ref options 'preprocess #f))
(compile? (option-ref options 'compile #f))
(assemble? (option-ref options 'assemble #f))
(verbose? (option-ref options 'verbose (getenv "MES_DEBUG"))))
(when verbose?
(setenv "NYACC_TRACE" "yes")
(format (current-error-port) "options=~s\n" options))
(cond (preprocess? (mescc:preprocess options))
(compile? (mescc:compile options))
(assemble? (mescc:assemble options))
(else (mescc:link options)))))