[erlang-patches] Fix hibernate with HiPE

Björn Gustavsson <>
Wed Oct 20 16:05:50 CEST 2010

2010/10/16 Paul Guyot <>:
> Le 11 oct. 2010 à 14:55, Björn Gustavsson a écrit :
>> There is a compilation warning:
>> beam/bif.c: In function ‘hibernate_3’:
>> beam/bif.c:1105: warning: assignment makes integer from pointer without a cast
>> It's the following line:
>>       BIF_P->def_arg_reg[3] = BIF_P->i;
> Thank you for your e-mail. I have fixed this warning by using a proper cast. Since such casts are normally found in macros defined in bif.h, I added a new macro for hibernate_3 (that just sets BIF_P->i and leaves arity untouched), so all TRAP-related code is in a single place. I believe this should ease halfword emulator work.
> The new (combined) commit is here:
> http://github.com/pguyot/otp/commit/aa60538c7f68b4c657d8ead45ffb4e44164f9561
> git fetch git://github.com/pguyot/otp.git fix-hibernate-with-hipe branch

Thanks! Updated.

> Also, I noticed in the "Currently in the 'pu' branch" page (http://erlang.github.com/otp/) that there is "1 line with whitespace errors.". While I guess what a line with whitespace errors could be, how can I figure out which line it is ?

git diff --check HEAD^

(To check for whitespace errors in one commit.)

To fix:

git rebase --whitespace=fix HEAD^

Björn Gustavsson, Erlang/OTP, Ericsson AB

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