mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-29 19:30:36 +02:00
77046be3d3
* module/system/base/compile.scm: * module/system/il/ghil.scm: * module/system/repl/describe.scm: * module/system/vm/core.scm: * module/system/vm/frame.scm: * module/system/vm/trace.scm: Explicitly list exports in the module declaration instead of using define-public.
78 lines
2.6 KiB
Scheme
78 lines
2.6 KiB
Scheme
;;; Guile VM tracer
|
|
|
|
;; Copyright (C) 2001 Free Software Foundation, Inc.
|
|
|
|
;; This program 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 2, or (at your option)
|
|
;; any later version.
|
|
;;
|
|
;; This program 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 this program; see the file COPYING. If not, write to
|
|
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
;; Boston, MA 02111-1307, USA.
|
|
|
|
;;; Code:
|
|
|
|
(define-module (system vm trace)
|
|
:use-syntax (system base syntax)
|
|
:use-module (system vm core)
|
|
:use-module (system vm frame)
|
|
:use-module (ice-9 format)
|
|
:export (vm-trace vm-trace-on vm-trace-off))
|
|
|
|
(define (vm-trace vm objcode . opts)
|
|
(dynamic-wind
|
|
(lambda () (apply vm-trace-on vm opts))
|
|
(lambda () (vm-load vm objcode))
|
|
(lambda () (apply vm-trace-off vm opts))))
|
|
|
|
(define (vm-trace-on vm . opts)
|
|
(set-vm-option! vm 'trace-first #t)
|
|
(if (memq :b opts) (add-hook! (vm-next-hook vm) trace-next))
|
|
(set-vm-option! vm 'trace-options opts)
|
|
(add-hook! (vm-apply-hook vm) trace-apply)
|
|
(add-hook! (vm-return-hook vm) trace-return))
|
|
|
|
(define (vm-trace-off vm . opts)
|
|
(if (memq :b opts) (remove-hook! (vm-next-hook vm) trace-next))
|
|
(remove-hook! (vm-apply-hook vm) trace-apply)
|
|
(remove-hook! (vm-return-hook vm) trace-return))
|
|
|
|
(define (trace-next vm)
|
|
(define (puts x) (display #\tab) (write x))
|
|
(define (truncate! x n)
|
|
(if (> (length x) n)
|
|
(list-cdr-set! x (1- n) '(...))) x)
|
|
;; main
|
|
(format #t "0x~8X ~16S" (vm:ip vm) (vm-fetch-code vm))
|
|
(do ((opts (vm-option vm 'trace-options) (cdr opts)))
|
|
((null? opts) (newline))
|
|
(case (car opts)
|
|
((:s) (puts (truncate! (vm-fetch-stack vm) 3)))
|
|
((:l) (puts (vm-fetch-locals vm)))
|
|
((:e) (puts (vm-fetch-externals vm))))))
|
|
|
|
(define (trace-apply vm)
|
|
(if (vm-option vm 'trace-first)
|
|
(set-vm-option! vm 'trace-first #f)
|
|
(let ((chain (vm-current-frame-chain vm)))
|
|
(print-indent chain)
|
|
(print-frame-call (car chain))
|
|
(newline))))
|
|
|
|
(define (trace-return vm)
|
|
(let ((chain (vm-current-frame-chain vm)))
|
|
(print-indent chain)
|
|
(write (vm-return-value vm))
|
|
(newline)))
|
|
|
|
(define (print-indent chain)
|
|
(cond ((pair? (cdr chain))
|
|
(display "| ")
|
|
(print-indent (cdr chain)))))
|