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Re: [Qemu-arm] [kvm-unit-tests PATCH v2 01/10] lib: xstr: allow multiple
From: |
Alex Bennée |
Subject: |
Re: [Qemu-arm] [kvm-unit-tests PATCH v2 01/10] lib: xstr: allow multiple args |
Date: |
Mon, 06 Jun 2016 15:52:33 +0100 |
User-agent: |
mu4e 0.9.17; emacs 25.0.94.5 |
Andrew Jones <address@hidden> writes:
> On Mon, Jun 06, 2016 at 11:49:09AM +0100, Alex Bennée wrote:
>>
>> Andrew Jones <address@hidden> writes:
>>
>> > Signed-off-by: Andrew Jones <address@hidden>
>> > ---
>> > lib/libcflat.h | 4 ++--
>> > 1 file changed, 2 insertions(+), 2 deletions(-)
>> >
>> > diff --git a/lib/libcflat.h b/lib/libcflat.h
>> > index 582e3fc60e287..e5e588c742763 100644
>> > --- a/lib/libcflat.h
>> > +++ b/lib/libcflat.h
>> > @@ -27,8 +27,8 @@
>> >
>> > #define __unused __attribute__((__unused__))
>> >
>> > -#define xstr(s) xxstr(s)
>> > -#define xxstr(s) #s
>> > +#define xstr(s...) xxstr(s)
>> > +#define xxstr(s...) #s
>>
>> OK my knowledge of stringinfication is still rusty despite having read
>> the QEMU softmmu code. However:
>>
>> printf("Unknown subtest:" xstr(foo,ba) "\n");
>>
>> Yields:
>>
>> Unknown subtestfoo,ba
>>
>> Is that what you wanted? Or were you aiming for xstr(foo,ba) => fooba
>
> The way I did it (which is like Linux) is what I wanted, see Linux's
> version in include/linux/stringify.h. I can correct $SUBJECT to make
> that more clear if you like.
Linux seems to have multiple local definitions of these stringyfy
operations so it is a little unclear. Any additional clarity in $SUBJECT
is welcome ;-)
>
> Thanks,
> drew
>
>
>
>>
>> As an aside I couldn't actually see xstr being called with multiple
>> arguments in the source tree.
>>
>> >
>> > #define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask))
>> > #define __ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a) - 1)
>>
>>
>> --
>> Alex Bennée
>> --
>> To unsubscribe from this list: send the line "unsubscribe kvm" in
>> the body of a message to address@hidden
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Alex Bennée
[Qemu-arm] [kvm-unit-tests PATCH v2 04/10] arm/arm64: add some delay routines, Andrew Jones, 2016/06/04
[Qemu-arm] [kvm-unit-tests PATCH v2 06/10] arm/arm64: add initial gicv2 support, Andrew Jones, 2016/06/04