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shift more DYSYM offsets

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svn: r3055
This commit is contained in:
Matthew Flatt 2006-05-25 13:19:00 +00:00
parent 7f9dbc286e
commit 9b850501a4
1 changed files with 21 additions and 13 deletions
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34
collects/compiler/private/mach-o.ss
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@ -77,13 +77,17 @@
[seg (read-bytes 16 p)]
[vmaddr (read-ulong p)]
[vmsz (read-ulong p)]
[offset (read-ulong p)])
[offset (read-ulong p)]
[align (read-ulong p)]
[reloff (read-ulong p)]
[nreloc (read-ulong p)]
[flags (read-ulong p)])
(when ((+ offset vmsz) . > . (+ cmdssz 28))
(when (offset . < . min-used)
;; (printf " new min!\n")
(set! min-used offset)))
;; (printf " ~s,~s 0x~x 0x~x\n" seg sect offset vmsz)
(read-ulong p) (read-ulong p) (read-ulong p) (read-ulong p) (read-ulong p) (read-ulong p))
(read-ulong p) (read-ulong p))
(loop (sub1 nsects))))))]
[(2)
;; Symbol table
@ -129,15 +133,16 @@
(write-ulong 0 out)
(write-ulong 0 out)
(write-ulong 4 out) ; 4 means SG_NORELOC
;; Shift command positions
(when (sym-tab-pos . > . link-edit-pos)
(set! sym-tab-pos (+ sym-tab-pos 56)))
(when (dysym-pos . > . link-edit-pos)
(set! dysym-pos (+ dysym-pos 56)))
(when (hints-pos . > . link-edit-pos)
(set! hints-pos (+ hints-pos 56)))
(set! link-edit-pos (+ link-edit-pos 56))
(when move-link-edit?
;; Update link-edit segment entry:
(when (sym-tab-pos . > . link-edit-pos)
(set! sym-tab-pos (+ sym-tab-pos 56)))
(when (dysym-pos . > . link-edit-pos)
(set! dysym-pos (+ dysym-pos 56)))
(when (hints-pos . > . link-edit-pos)
(set! hints-pos (+ hints-pos 56)))
(set! link-edit-pos (+ link-edit-pos 56))
(file-position out (+ link-edit-pos 32))
;; (printf "Update to ~a\n" (+ out-offset outlen))
(write-ulong (+ out-offset outlen) out)
@ -157,10 +162,13 @@
(file-position out (+ sym-tab-pos 16))
(write-ulong (+ symstr-offset outlen) out))
;; Shift dysym pointers:
(file-position p (+ dysym-pos 56))
(let ([ind-offset (read-ulong p)])
(file-position out (+ dysym-pos 56))
(write-ulong (+ ind-offset outlen) out))
(for-each (lambda (delta)
(file-position p (+ dysym-pos delta))
(let ([offset (read-ulong p)])
(unless (zero? offset)
(file-position out (+ dysym-pos delta))
(write-ulong (+ offset outlen) out))))
'(32 40 48 56 64 72))
;; Shift hints pointer:
(file-position p (+ hints-pos 8))
(let ([hints-offset (read-ulong p)])