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; api.scm - access Sassy's output
; Copyright (C) 2005 Jonathan Kraut
; This library is free software; you can redistribute it and/or
; modify it under the terms of the GNU Lesser General Public
; License as published by the Free Software Foundation; either
; version 2.1 of the License, or (at your option) any later version.
; This library 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
; Lesser General Public License for more details.
; You should have received a copy of the GNU Lesser General Public
; License along with this library; if not, write to the Free Software
; Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
; Contact:
; Jonathan Kraut
; 4130 43 ST #C2
; Sunnyside, NY 11104
; jak76@columbia.edu
; see file COPYING in the top of Sassy's distribution directory
; module api
; import srfi-9 push-stacks
; export all
(define-record-type sassy-output
(make-sassy-output a b c d e f g h i j k)
sassy-output?
(a sassy-symbol-table sassy-symbol-table-set!)
(b sassy-reloc-list sassy-reloc-list-set!)
(c sassy-entry-point sassy-entry-point-set!)
(d sassy-data-stack sassy-data-stack-set!)
(e sassy-text-stack sassy-text-stack-set!)
(f sassy-heap-align sassy-heap-align-set!)
(g sassy-data-align sassy-data-align-set!)
(h sassy-text-align sassy-text-align-set!)
(i sassy-heap-size sassy-heap-size-set!)
(j sassy-text-org sassy-text-org-set!)
(k sassy-bits sassy-bits-set!))
(define-record-type sassy-symbol
(make-sassy-symbol a b c d e f g)
sassy-symbol?
(a sassy-symbol-name sassy-symbol-name-set!)
(b sassy-symbol-scope sassy-symbol-scope-set!)
(c sassy-symbol-section sassy-symbol-section-set!)
(d sassy-symbol-offset sassy-symbol-offset-set!)
(e sassy-symbol-size sassy-symbol-size-set!)
(f sassy-symbol-unres sassy-symbol-unres-set!)
(g sassy-symbol-exp sassy-symbol-exp-set!))
(define-record-type sassy-reloc
(make-sassy-reloc a b c d e f g)
sassy-reloc?
(a sassy-reloc-name sassy-reloc-name-set!)
(b sassy-reloc-section sassy-reloc-section-set!)
(c sassy-reloc-offset sassy-reloc-offset-set!)
(d sassy-reloc-type sassy-reloc-type-set!)
(e sassy-reloc-patcher sassy-reloc-patcher-set!)
(f sassy-reloc-value sassy-reloc-value-set!)
(g sassy-reloc-width sassy-reloc-width-set!))
(define (sassy-data-list sassy-output)
(push-stack-items (sassy-data-stack sassy-output)))
(define (sassy-text-list sassy-output)
(push-stack-items (sassy-text-stack sassy-output)))
(define (sassy-text-size sassy-output)
(push-stack-size (sassy-text-stack sassy-output)))
(define (sassy-data-size sassy-output)
(push-stack-size (sassy-data-stack sassy-output)))
(define (sassy-symbol-exists? sassy-output name)
(hash-table-ref (sassy-symbol-table sassy-output) name (lambda () #f)))
(define (sassy-hexdump list-of-bytes)
(let ((print-count (lambda (count)
(let ((n (number->string count 16)))
(display (make-string (- 8 (string-length n)) #\0))
(display n)
(display #\space))))
(byte->azkey (lambda (byte)
(if (and (>= byte 32) (<= byte 126))
(integer->char byte)
#\.)))
(print-hex (lambda (byte)
(let ((tmp (number->string byte 16)))
(if (= 1 (string-length tmp))
(display "0"))
(display tmp)
(display #\space))))
(print-string (lambda (string)
(display "|")
(display (list->string (reverse string)))
(display "|")
(newline))))
(define string '())
(define col 1)
(newline)
(do ((rest list-of-bytes (cdr rest))
(count 0 (+ count 1)))
((null? rest)
(if (not (zero? (modulo count 16)))
(begin
(display (make-string (- 61 col) #\space))
(print-string string))))
(if (zero? (modulo count 16))
(begin (print-count count) (set! col 10)))
(if (zero? (modulo count 8))
(begin (display #\space) (set! col (+ col 1))))
(print-hex (car rest))
(set! col (+ col 3))
(set! string (cons (byte->azkey (car rest)) string))
(if (= 15 (modulo count 16))
(begin (display #\space)
(print-string string)
(set! string '()))))))
(define sassy-print-relocs #f)
(define sassy-print-symbols #f)
(let ((print-field (lambda (t v record)
(display t)
(display ": ")
(let ((t (v record)))
(display (or t "#<undefined>")))
(newline)))
(make-num (lambda (x)
(if x
(string-append "#x" (number->string x 16))
"#<undefined>"))))
(set! sassy-print-relocs
(lambda (sassy-output)
(for-each
(lambda (reloc)
(newline)
(print-field "name " sassy-reloc-name reloc)
(print-field "section" sassy-reloc-section reloc)
(print-field "offset " (lambda (x)
(make-num (sassy-reloc-offset x))) reloc)
(print-field "type " sassy-reloc-type reloc)
(print-field "value " (lambda (x)
(make-num (sassy-reloc-value x))) reloc)
(print-field "width " (lambda (x)
(make-num (sassy-reloc-width x))) reloc))
(sassy-reloc-list sassy-output))))
(set! sassy-print-symbols
(lambda (sassy-output)
(for-each
(lambda (sym)
(newline)
(print-field "name " sassy-symbol-name sym)
(print-field "scope " sassy-symbol-scope sym)
(print-field "section" sassy-symbol-section sym)
(print-field "offset " (lambda (x)
(make-num (sassy-symbol-offset x))) sym)
(print-field "size " (lambda (x)
(make-num (sassy-symbol-size x))) sym))
(hash-table-values (sassy-symbol-table sassy-output))))))
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