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allegro-acl2-trace.lisp
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allegro-acl2-trace.lisp
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; ACL2 Version 8.5 -- A Computational Logic for Applicative Common Lisp
; Copyright (C) 2024, Regents of the University of Texas
; This version of ACL2 is a descendent of ACL2 Version 1.9, Copyright
; (C) 1997 Computational Logic, Inc. See the documentation topic NOTE-2-0.
; This program is free software; you can redistribute it and/or modify
; it under the terms of the LICENSE file distributed with ACL2.
; 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
; LICENSE for more details.
; This file originally written by: Robert Krug
; email: [email protected]
; Department of Computer Science
; University of Texas at Austin
; Austin, TX 78712 U.S.A.
; Written by: Matt Kaufmann and J Strother Moore
; email: [email protected] and [email protected]
; Department of Computer Science
; University of Texas at Austin
; Austin, TX 78712 U.S.A.
; We don't intend this file to be compiled.
; TRACE stuff
; Allegro's trace facilities are somewhat limited. However it does have a
; function, advise, which is sufficiently general to allow it to imitate GCL's
; trace facilities as provided within ACL2. See Franz's documentation for
; information on advise and unadvise.
; We put over into old-trace the macro for trace that comes with Allegro.
; Thus one can type (old-trace foo) and get the effect that (trace
; foo) would have previously provided. We do not guarantee that using
; old-trace works well with trace$, however.
(cond ((null (macro-function 'old-trace))
(setf (macro-function 'old-trace) (macro-function 'trace))))
(cond ((null (macro-function 'old-untrace))
(setf (macro-function 'old-untrace) (macro-function 'untrace))))
; The variables *trace-arglist* and *trace-values* will contain the
; cleaned up arglist and values of a traced function. The alist
; *trace-sublis* allows one to refer to these variables by more
; common names.
(defvar *trace-arglist*)
(defvar *trace-values*)
(defconst *trace-sublis* '((values . *trace-values*)
(si::values . *trace-values*)
(arglist . *trace-arglist*)
(si::arglist . *trace-arglist*)))
; What I am trying to do:
; Trace is called with a list of functions to be traced. Each element of
; this list can be;
; (Let foo be defined in common lisp but not in ACL2, and
; bar be defined within ACL2.)
; 1. the name of a non-acl2 function --- foo,
; 2. the name of an acl2 function --- bar,
; 3. a list whose only element is the name of a non-acl2 function --- (foo),
; 4. a list whose only element is the name of an acl2 function --- (bar),
; 5. a list whose car is the name of a non-acl2 function and whose
; cdr may contain the keywords :entry and :exit, each of which
; are followed by a function whose value will be printed upon
; entry and exit respectively of the function being traced ---
; (foo :entry (list (list 'arg-one (car si::arglist))
; (list 'arg-two (nth 1 si::arglist))))),
; 6. a list whose car is the name of an acl2 function and whose
; cdr may contain the keywords :entry and :exit, each of which
; are followed by a function whose value will be printed upon
; entry and exit respectively of the function being traced ---
; (bar :entry si::arglist
; :exit (if (eql (nth 1 si::arglist)
; (nth 0 values))
; 'FAILED
; (pretty-print-arg (nth 1 values))))
;
; In trace-pre-process we generate a new list as follows, where *1*bar denotes
; (*1*-symbol bar).
; 1. replacing foo with (foo foo),
; 2. replacing bar with (bar bar) & adding (*1*bar bar),
; 3, replacing (foo ...) with (foo foo ...)
; 4. replacing (bar ...) with (bar bar ...) & adding ((*1*bar ...) (bar ...)).
;
; In trace-process we generate suitable calls of advise and unadvise.
;
; Unless explicitly overridden by the :entry or :exit keywords,
; <entry trace-instructions> and <exit trace-instructions> print the
; arguments and returned values respectively. A minor amount of
; cleaning up is done, such as printing |*STATE*| instead of the
; entire state if it is one of the arguments or values.
(defun trace-pre-process (lst)
(let ((new-lst nil))
(dolist (x lst new-lst)
(let ((sym (cond
((symbolp x) x)
((and (consp x) (symbolp (car x)))
(car x))
(t (interface-er "Not a symbol or a cons of a symbol: ~s0" x)))))
(if (function-symbolp sym (w *the-live-state*))
; We have an ACL2 function.
(cond ((symbolp x)
(push (list (*1*-symbol x) x) new-lst)
(push (list x x) new-lst))
(t
(push (list* (*1*-symbol (car x)) (car x) (cdr x))
new-lst)
(push (list* (car x) (car x) (cdr x)) new-lst)))
; We do not have an ACL2 function.
(if (fboundp sym)
(if (symbolp x)
(push (list x x) new-lst)
(push (list* (car x) (car x) (cdr x)) new-lst))
(interface-er "~s0 is not a bound function symbol." sym)))))))
(defun trace-entry-rec (name l entry evisc-tuple)
; We construct the (excl:advise <fn-name> :before ...) form that performs the
; tracing on entry.
(cond ((null l)
`(excl:advise ,name :before nil nil
(progn (setq *trace-arglist* si::arglist)
(custom-trace-ppr
:in
(cons ',name
(trace-hide-world-and-state
,(if entry
(sublis *trace-sublis*
entry)
'*trace-arglist*)))
,@(and evisc-tuple
(list evisc-tuple))))))
((eq (car l) :entry)
(trace-entry-rec name (cdr l) (cadr l) evisc-tuple))
((eq (car l) :evisc-tuple)
(trace-entry-rec name (cdr l) entry (cadr l)))
(t
(trace-entry-rec name (cdr l) entry evisc-tuple))))
(defun trace-entry (name l)
(trace-entry-rec name l nil nil))
; These next two functions were blindly copied from akcl-acl2-trace.lisp
(defun trace-values (name)
(declare (ignore name))
'values)
(defun trace-exit-rec (name original-name l state exit evisc-tuple)
; We construct the (excl:advise <fn-name> :after ...) form that performs the
; tracing on entry.
(cond ((null l)
(cond
((null exit)
`(excl:advise
,name :after nil nil
(progn (setq *trace-values*
(trace-hide-world-and-state
,(trace-values original-name)))
,(protect-mv
`(custom-trace-ppr
:out
(cons ',name *trace-values*)
,@(and evisc-tuple
(list evisc-tuple)))
(trace-multiplicity original-name state)))))
(t
(let ((multiplicity (trace-multiplicity original-name state)))
`(excl:advise
,name :after nil nil
(progn ,(protect-mv
`(progn (setq *trace-values*
(trace-hide-world-and-state
,(trace-values original-name)))
(setq *trace-arglist* (trace-hide-world-and-state
si::arglist)))
multiplicity)
,(protect-mv
`(custom-trace-ppr
:out
(cons ',name
,(sublis *trace-sublis* exit))
,@(and evisc-tuple
(list evisc-tuple)))
multiplicity)))))))
((eq (car l) :exit)
(trace-exit-rec name original-name (cdr l) state (cadr l) evisc-tuple))
((eq (car l) :evisc-tuple)
(trace-exit-rec name original-name (cdr l) state exit (cadr l)))
(t
(trace-exit-rec name original-name (cdr l) state exit evisc-tuple))))
(defun trace-exit (name original-name l)
(trace-exit-rec name original-name l *the-live-state* nil nil))
(defun traced-fns-lst (lst)
(list 'QUOTE (mapcar #'car lst)))
(defun trace-process (lst)
; We perform a little error checking, and gather together all the (excl:advise
; ...) functions.
(let ((new-lst (list (traced-fns-lst lst)))) ; for the returned value
(dolist (x lst new-lst)
(cond ((member :cond (cddr x))
(interface-er "The use of :cond is not supported in ~
Allegro."))
((member :break (cddr x))
(interface-er "The use of :break is not supported in ~
Allegro. However, you can use either ~
(~s0 :entry (break$)) or (~s0 :exit (break$)). ~
See any Lisp documentation for more on ~
break and its options." (car x)))
(t
(push (trace-exit (car x) (cadr x) (cddr x)) new-lst)
(push (trace-entry (car x) (cddr x)) new-lst)
(push `(excl:unadvise ,(car x)) new-lst))))))
(excl:without-package-locks
(defmacro trace (&rest fns)
(if fns
(cons 'progn
(trace-process (trace-pre-process fns)))
'(excl::advised-functions))))
(excl:without-package-locks
(defmacro untrace (&rest fns)
(if (null fns)
'(prog1 (excl::advised-functions)
(excl:unadvise))
(cons
'progn
(let ((ans nil))
(dolist (fn fns ans)
(push `(excl:unadvise ,fn) ans)
(push `(excl:unadvise ,(*1*-symbol fn)) ans)))))))