cgen-opc.scm from Gdb at Krugle
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; CPU description file generator for the GNU Binutils.
; This is invoked to build: $arch-desc.[ch], $arch-opinst.c,
; $arch-opc.h, $arch-opc.c, $arch-asm.in, $arch-dis.in, and $arch-ibld.[ch].
; Copyright (C) 2000 Red Hat, Inc.
; This file is part of CGEN.
;
; This is a standalone script, we don't load anything until we parse the
; -s argument (keeps reliance off of environment variables, etc.).
; Load the various support routines.
(define (load-files srcdir)
(load (string-append srcdir "/read.scm"))
(load (string-append srcdir "/desc.scm"))
(load (string-append srcdir "/desc-cpu.scm"))
(load (string-append srcdir "/opcodes.scm"))
(load (string-append srcdir "/opc-asmdis.scm"))
(load (string-append srcdir "/opc-ibld.scm"))
(load (string-append srcdir "/opc-itab.scm"))
(load (string-append srcdir "/opc-opinst.scm"))
)
; Records the -OPC arg which specifies the path to the .opc file.
(define -opc-file-path #f)
(define (opc-file-path)
(if -opc-file-path
-opc-file-path
(error ".opc file unspecified, missing -OPC argument"))
)
(define opc-arguments
(list
(list "-OPC" "file" "specify path to .opc file"
(lambda (arg) (set! -opc-file-path arg))
#f)
(list "-H" "file" "generate $arch-desc.h in <file>"
#f
(lambda (arg) (file-write arg cgen-desc.h)))
(list "-C" "file" "generate $arch-desc.c in <file>"
#f
(lambda (arg) (file-write arg cgen-desc.c)))
(list "-O" "file" "generate $arch-opc.h in <file>"
#f
(lambda (arg) (file-write arg cgen-opc.h)))
(list "-P" "file" "generate $arch-opc.c in <file>"
#f
(lambda (arg) (file-write arg cgen-opc.c)))
(list "-Q" "file" "generate $arch-opinst.c in <file>"
#f
(lambda (arg) (file-write arg cgen-opinst.c)))
(list "-B" "file" "generate $arch-ibld.h in <file>"
#f
(lambda (arg) (file-write arg cgen-ibld.h)))
(list "-L" "file" "generate $arch-ibld.in in <file>"
#f
(lambda (arg) (file-write arg cgen-ibld.in)))
(list "-A" "file" "generate $arch-asm.in in <file>"
#f
(lambda (arg) (file-write arg cgen-asm.in)))
(list "-D" "file" "generate $arch-dis.in in <file>"
#f
(lambda (arg) (file-write arg cgen-dis.in)))
)
)
; (-R "file" "generate $cpu-reloc.h") ; FIXME: wip (rename to -abi.h?)
; (-S "file" "generate cpu-$cpu.c") ; FIXME: wip (bfd's cpu-$cpu.c)
; ((-R) (file-write *arg* cgen-reloc.c))
; ((-S) (file-write *arg* cgen-bfdcpu.c))
; Kept global so it's available to the other .scm files.
(define srcdir ".")
; Scan argv for -s srcdir.
; We can't process any other args until we find the cgen source dir.
; The result is srcdir.
; We assume "-s" isn't the argument to another option. Unwise, yes.
; Alternatives are to require it to be the first argument or at least preceed
; any option with a "-s" argument, or to put knowledge of the common argument
; set and common argument parsing code in every top level file.
(define (find-srcdir argv)
(let loop ((argv argv))
(if (null? argv)
(error "`-s srcdir' not present, can't load cgen"))
(if (string=? "-s" (car argv))
(begin
(if (null? (cdr argv))
(error "missing srcdir arg to `-s'"))
(cadr argv))
(loop (cdr argv))))
)
; Main routine, parses options and calls generators.
(define (cgen-opc argv)
(let ()
; Find and set srcdir, then load all Scheme code.
; Drop the first argument, it is the script name (i.e. argv[0]).
(set! srcdir (find-srcdir (cdr argv)))
(set! %load-path (cons srcdir %load-path))
(load-files srcdir)
(display-argv argv)
(cgen #:argv argv
#:app-name "opcodes"
#:arg-spec opc-arguments
#:init opcodes-init!
#:finish opcodes-finish!
#:analyze opcodes-analyze!)
)
)
(cgen-opc (program-arguments))
See more files for this project here