351 lines
11 KiB
Scheme
351 lines
11 KiB
Scheme
;; Copyright (C) 2008-2015 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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
;; This file is part of the GDB testsuite.
|
|
;; It tests Scheme pretty printers.
|
|
|
|
(use-modules (gdb) (gdb printing))
|
|
|
|
(define (make-pointer-iterator pointer len)
|
|
(let ((next! (lambda (iter)
|
|
(let* ((start (iterator-object iter))
|
|
(progress (iterator-progress iter))
|
|
(current (car progress))
|
|
(len (cdr progress)))
|
|
(if (= current len)
|
|
(end-of-iteration)
|
|
(let ((pointer (value-add start current)))
|
|
(set-car! progress (+ current 1))
|
|
(cons (format #f "[~A]" current)
|
|
(value-dereference pointer))))))))
|
|
(make-iterator pointer (cons 0 len) next!)))
|
|
|
|
(define (make-pointer-iterator-except pointer len)
|
|
(let ((next! (lambda (iter)
|
|
(if *exception-flag*
|
|
(throw 'gdb:memory-error "hi bob"))
|
|
(let* ((start (iterator-object iter))
|
|
(progress (iterator-progress iter))
|
|
(current (car progress))
|
|
(len (cdr progress)))
|
|
(if (= current len)
|
|
(end-of-iteration)
|
|
(let ((pointer (value-add start current)))
|
|
(set-car! progress (+ current 1))
|
|
(cons (format #f "[~A]" current)
|
|
(value-dereference pointer))))))))
|
|
(make-iterator pointer (cons 0 len) next!)))
|
|
|
|
;; Test returning a <gdb:value> from a printer.
|
|
|
|
(define (make-string-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(value-field (value-field val "whybother")
|
|
"contents"))
|
|
#f))
|
|
|
|
;; Test a printer with children.
|
|
|
|
(define (make-container-printer val)
|
|
;; This is a little different than the Python version in that if there's
|
|
;; an error accessing these fields we'll throw it at matcher time instead
|
|
;; of at printer time. Done this way to explore the possibilities.
|
|
(let ((name (value-field val "name"))
|
|
(len (value-field val "len"))
|
|
(elements (value-field val "elements")))
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(format #f "container ~A with ~A elements"
|
|
name len))
|
|
(lambda (printer)
|
|
(make-pointer-iterator elements (value->integer len))))))
|
|
|
|
;; Test "array" display hint.
|
|
|
|
(define (make-array-printer val)
|
|
(let ((name (value-field val "name"))
|
|
(len (value-field val "len"))
|
|
(elements (value-field val "elements")))
|
|
(make-pretty-printer-worker
|
|
"array"
|
|
(lambda (printer)
|
|
(format #f "array ~A with ~A elements"
|
|
name len))
|
|
(lambda (printer)
|
|
(make-pointer-iterator elements (value->integer len))))))
|
|
|
|
;; Flag to make no-string-container printer throw an exception.
|
|
|
|
(define *exception-flag* #f)
|
|
|
|
;; Test a printer where to_string returns #f.
|
|
|
|
(define (make-no-string-container-printer val)
|
|
(let ((len (value-field val "len"))
|
|
(elements (value-field val "elements")))
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer) #f)
|
|
(lambda (printer)
|
|
(make-pointer-iterator-except elements (value->integer len))))))
|
|
|
|
;; The actual pretty-printer for pp_s is split out so that we can pass
|
|
;; in a prefix to distinguish objfile/progspace/global.
|
|
|
|
(define (pp_s-printer prefix val)
|
|
(let ((a (value-field val "a"))
|
|
(b (value-field val "b")))
|
|
(if (not (value=? (value-address a) b))
|
|
(error (format #f "&a(~A) != b(~A)"
|
|
(value-address a) b)))
|
|
(format #f "~aa=<~A> b=<~A>" prefix a b)))
|
|
|
|
(define (make-pp_s-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(pp_s-printer "" val))
|
|
#f))
|
|
|
|
(define (make-pp_ss-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(let ((a (value-field val "a"))
|
|
(b (value-field val "b")))
|
|
(format #f "a=<~A> b=<~A>" a b)))
|
|
#f))
|
|
|
|
(define (make-pp_sss-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(let ((a (value-field val "a"))
|
|
(b (value-field val "b")))
|
|
(format #f "a=<~A> b=<~A>" a b)))
|
|
#f))
|
|
|
|
(define (make-pp_multiple_virtual-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(format #f "pp value variable is: ~A" (value-field val "value")))
|
|
#f))
|
|
|
|
(define (make-pp_vbase1-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(format #f "pp class name: ~A" (type-tag (value-type val))))
|
|
#f))
|
|
|
|
(define (make-pp_nullstr-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(value->string (value-field val "s")
|
|
#:encoding (arch-charset (current-arch))))
|
|
#f))
|
|
|
|
(define (make-pp_ns-printer val)
|
|
(make-pretty-printer-worker
|
|
"string"
|
|
(lambda (printer)
|
|
(let ((len (value-field val "length")))
|
|
(value->string (value-field val "null_str")
|
|
#:encoding (arch-charset (current-arch))
|
|
#:length (value->integer len))))
|
|
#f))
|
|
|
|
(define *pp-ls-encoding* #f)
|
|
|
|
(define (make-pp_ls-printer val)
|
|
(make-pretty-printer-worker
|
|
"string"
|
|
(lambda (printer)
|
|
(if *pp-ls-encoding*
|
|
(value->lazy-string (value-field val "lazy_str")
|
|
#:encoding *pp-ls-encoding*)
|
|
(value->lazy-string (value-field val "lazy_str"))))
|
|
#f))
|
|
|
|
(define (make-pp_hint_error-printer val)
|
|
"Use an invalid value for the display hint."
|
|
(make-pretty-printer-worker
|
|
42
|
|
(lambda (printer) "hint_error_val")
|
|
#f))
|
|
|
|
(define (make-pp_children_as_list-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer) "children_as_list_val")
|
|
(lambda (printer) (make-list-iterator (list (cons "one" 1))))))
|
|
|
|
(define (make-pp_outer-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(format #f "x = ~A" (value-field val "x")))
|
|
(lambda (printer)
|
|
(make-list-iterator (list (cons "s" (value-field val "s"))
|
|
(cons "x" (value-field val "x")))))))
|
|
|
|
(define (make-memory-error-string-printer val)
|
|
(make-pretty-printer-worker
|
|
"string"
|
|
(lambda (printer)
|
|
(scm-error 'gdb:memory-error "memory-error-printer"
|
|
"Cannot access memory." '() '()))
|
|
#f))
|
|
|
|
(define (make-pp_eval_type-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(execute "bt" #:to-string #t)
|
|
(format #f "eval=<~A>"
|
|
(value-print
|
|
(parse-and-eval
|
|
"eval_func (123456789, 2, 3, 4, 5, 6, 7, 8)"))))
|
|
#f))
|
|
|
|
(define (get-type-for-printing val)
|
|
"Return type of val, stripping away typedefs, etc."
|
|
(let ((type (value-type val)))
|
|
(if (= (type-code type) TYPE_CODE_REF)
|
|
(set! type (type-target type)))
|
|
(type-strip-typedefs (type-unqualified type))))
|
|
|
|
(define (disable-matcher!)
|
|
(set-pretty-printer-enabled! *pretty-printer* #f))
|
|
|
|
(define (enable-matcher!)
|
|
(set-pretty-printer-enabled! *pretty-printer* #t))
|
|
|
|
(define (make-pretty-printer-dict)
|
|
(let ((dict (make-hash-table)))
|
|
(hash-set! dict "struct s" make-pp_s-printer)
|
|
(hash-set! dict "s" make-pp_s-printer)
|
|
(hash-set! dict "S" make-pp_s-printer)
|
|
|
|
(hash-set! dict "struct ss" make-pp_ss-printer)
|
|
(hash-set! dict "ss" make-pp_ss-printer)
|
|
(hash-set! dict "const S &" make-pp_s-printer)
|
|
(hash-set! dict "SSS" make-pp_sss-printer)
|
|
|
|
(hash-set! dict "VirtualTest" make-pp_multiple_virtual-printer)
|
|
(hash-set! dict "Vbase1" make-pp_vbase1-printer)
|
|
|
|
(hash-set! dict "struct nullstr" make-pp_nullstr-printer)
|
|
(hash-set! dict "nullstr" make-pp_nullstr-printer)
|
|
|
|
;; Note that we purposely omit the typedef names here.
|
|
;; Printer lookup is based on canonical name.
|
|
;; However, we do need both tagged and untagged variants, to handle
|
|
;; both the C and C++ cases.
|
|
(hash-set! dict "struct string_repr" make-string-printer)
|
|
(hash-set! dict "struct container" make-container-printer)
|
|
(hash-set! dict "struct justchildren" make-no-string-container-printer)
|
|
(hash-set! dict "string_repr" make-string-printer)
|
|
(hash-set! dict "container" make-container-printer)
|
|
(hash-set! dict "justchildren" make-no-string-container-printer)
|
|
|
|
(hash-set! dict "struct ns" make-pp_ns-printer)
|
|
(hash-set! dict "ns" make-pp_ns-printer)
|
|
|
|
(hash-set! dict "struct lazystring" make-pp_ls-printer)
|
|
(hash-set! dict "lazystring" make-pp_ls-printer)
|
|
|
|
(hash-set! dict "struct outerstruct" make-pp_outer-printer)
|
|
(hash-set! dict "outerstruct" make-pp_outer-printer)
|
|
|
|
(hash-set! dict "struct hint_error" make-pp_hint_error-printer)
|
|
(hash-set! dict "hint_error" make-pp_hint_error-printer)
|
|
|
|
(hash-set! dict "struct children_as_list"
|
|
make-pp_children_as_list-printer)
|
|
(hash-set! dict "children_as_list" make-pp_children_as_list-printer)
|
|
|
|
(hash-set! dict "memory_error" make-memory-error-string-printer)
|
|
|
|
(hash-set! dict "eval_type_s" make-pp_eval_type-printer)
|
|
|
|
dict))
|
|
|
|
;; This is one way to register a printer that is composed of several
|
|
;; subprinters, but there's no way to disable or list individual subprinters.
|
|
|
|
(define (make-pretty-printer-from-dict name dict lookup-maker)
|
|
(make-pretty-printer
|
|
name
|
|
(lambda (matcher val)
|
|
(let ((printer-maker (lookup-maker dict val)))
|
|
(and printer-maker (printer-maker val))))))
|
|
|
|
(define (lookup-pretty-printer-maker-from-dict dict val)
|
|
(let ((type-name (type-tag (get-type-for-printing val))))
|
|
(and type-name
|
|
(hash-ref dict type-name))))
|
|
|
|
(define *pretty-printer*
|
|
(make-pretty-printer-from-dict "pretty-printer-test"
|
|
(make-pretty-printer-dict)
|
|
lookup-pretty-printer-maker-from-dict))
|
|
|
|
(append-pretty-printer! #f *pretty-printer*)
|
|
|
|
;; Different versions of a simple pretty-printer for use in testing
|
|
;; objfile/progspace lookup.
|
|
|
|
(define (make-objfile-pp_s-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(pp_s-printer "objfile " val))
|
|
#f))
|
|
|
|
(define (install-objfile-pretty-printers! pspace objfile-name)
|
|
(let ((objfiles (filter (lambda (objfile)
|
|
(string-contains (objfile-filename objfile)
|
|
objfile-name))
|
|
(progspace-objfiles pspace)))
|
|
(dict (make-hash-table)))
|
|
(if (not (= (length objfiles) 1))
|
|
(error "objfile not found or ambiguous: " objfile-name))
|
|
(hash-set! dict "s" make-objfile-pp_s-printer)
|
|
(let ((pp (make-pretty-printer-from-dict
|
|
"objfile-pretty-printer-test"
|
|
dict lookup-pretty-printer-maker-from-dict)))
|
|
(append-pretty-printer! (car objfiles) pp))))
|
|
|
|
(define (make-progspace-pp_s-printer val)
|
|
(make-pretty-printer-worker
|
|
#f
|
|
(lambda (printer)
|
|
(pp_s-printer "progspace " val))
|
|
#f))
|
|
|
|
(define (install-progspace-pretty-printers! pspace)
|
|
(let ((dict (make-hash-table)))
|
|
(hash-set! dict "s" make-progspace-pp_s-printer)
|
|
(let ((pp (make-pretty-printer-from-dict
|
|
"progspace-pretty-printer-test"
|
|
dict lookup-pretty-printer-maker-from-dict)))
|
|
(append-pretty-printer! pspace pp))))
|