swank sbcl patch

[Luís Oliveira]

Applied here:
https://github.com/slime/slime/commit/81017fbc9e622d3f0f9fa4b35e35f9ab8c4d381b

Thanks!
Luís

On Thu, Feb 8, 2018 at 4:22 AM Douglas Katzman <dougk at google.com> wrote:

> Hi,
>
> Please apply this diff. There are multiple problems with the existing code.
> * it seems to believe that DISASSEMBLE-CODE-COMPONENT only works on with
> non-null %code-debug-info. That's not true; it works on any code object. So
> depending on your standards, it's excessively wordy to just plain wrong.
>
> * (ash (sb-kernel:%code-code-size o) sb-vm:word-shift) causes buffer
> overrun
>
> * sb-disassem::align can not be called
>
> See https://bugs.launchpad.net/sbcl/+bug/1748041
> Thanks
> Doug
>
> --- a/swank/sbcl.lisp
> +++ b/swank/sbcl.lisp
> @@ -1613,18 +1613,7 @@ stack."
>           append (label-value-line i (sb-kernel:code-header-ref o i)))
>     `("Code:" (:newline)
>               , (with-output-to-string (s)
> -                 (cond ((sb-kernel:%code-debug-info o)
> -                        (sb-disassem:disassemble-code-component o :stream
> s))
> -                       (t
> -                        (sb-disassem:disassemble-memory
> -                         (sb-disassem::align
> -                          (+ (logandc2 (sb-kernel:get-lisp-obj-address o)
> -                                       sb-vm:lowtag-mask)
> -                             (* sb-vm:code-constants-offset
> -                                sb-vm:n-word-bytes))
> -                          (ash 1 sb-vm:n-lowtag-bits))
> -                         (ash (sb-kernel:%code-code-size o)
> sb-vm:word-shift)
> -                         :stream s)))))))
> +                 (sb-disassem:disassemble-code-component o :stream s)))))
>
>
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