Re: [Qemu-devel] [PATCH] softfloat: rebase to version 2a

[Xuetao Guan]

> N.B. If you are on CC, see after the '---' for a requested action!
>
> The license of SoftFloat-2b is claimed to be GPLv2 incompatible by
> the FSF due to an indemnification clause.  The previous release,
> SoftFloat-2a, did not contain this clause.  The only changes between
> these two versions as far as QEMU is concerned is the license change
> and a global modification of the comment structure.  This patch rebases
> our softfloat code to SoftFloat-2a in order to have a GPLv2 compatible
> license.
>
> Please note, this is a comment-only change.  The resulting binary should
> be the same.
>
> I created this patch using the following strategy:
>
> 1) Create a branch using the original import of softfloat code:
>    $ git checkout 158142c2c2df728cfa3b5320c65534921a764f26
>
> 2) Remove carriage returns from Softfloat-2b
>
> 3) Compare each of the softfloat files against Softfloat-2b using the
>    following mapping to generate Fabrice's original softfloat changes:
>
>    - fpu/softfloat.c -> softfloat/bits64/softfloat.c
>    - fpu/softfloat.h -> softfloat/bits64/386-Win32-gcc/softfloat.h
>    - fpu/softfloat-macros.h -> softfloat/bits64/softfloat-macros
>    - fpu/softfloat-specialize.h ->
> softfloat/bits64/386-Win32-gcc/softfloat-specialize
>
> 4) Replace our softfloat files with the corresponding files from
> Softfloat-2a
>
> 5) Apply the diffs from (3) to (4) and commit
>
> 6) Create a diff between (5) and 158142c2c2df728cfa3b5320c65534921a764f26
>    - This diff consists 100% of licensing change + comment reformating
>
> 7) Checkout the latest master branch, apply the diff from (6)
>    - There were a lot of comment rejects, confirmed this was only comments
>      and then used an emacs macro to rewrite the comments to the
> Softfloat-2a
>      form.
>
> Cc: Andreas F盲rber <address@hidden>
> Cc: Aurelien Jarno <address@hidden>
> Cc: Avi Kivity <address@hidden>
> Cc: Ben Taylor <address@hidden>
> Cc: Blue Swirl <address@hidden>
> Cc: Christophe Lyon <address@hidden>
> Cc: Fabrice Bellard <address@hidden>
> Cc: Guan Xuetao <address@hidden>
> Cc: Jocelyn Mayer <address@hidden>
> Cc: Juan Quintela <address@hidden>
> Cc: malc <address@hidden>
> Cc: Max Filippov <address@hidden>
> Cc: Paolo Bonzini <address@hidden>
> Cc: Paul Brook <address@hidden>
> Cc: Peter Maydell <address@hidden>
> Cc: Richard Henderson <address@hidden>
> Cc: Richard Sandiford <address@hidden>
> Cc: Stefan Weil <address@hidden>
> Cc: Thiemo Seufer <address@hidden>
> Signed-off-by: Anthony Liguori <address@hidden>

Acked-by: Guan Xuetao <address@hidden>