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Re: [Xen-devel] [PATCH 00/18] x86: multiboot2 protocol support



>>> On 05.02.15 at 12:50, <phcoder@xxxxxxxxx> wrote:
> Le 2015-02-04 10:51, "Jan Beulich" <JBeulich@xxxxxxxx> a Ãcrit :
>>
>> >>> On 04.02.15 at 10:04, <andrew.cooper3@xxxxxxxxxx> wrote:
>> > On 03/02/2015 17:14, Daniel Kiper wrote:
>> >> On Mon, Feb 02, 2015 at 09:28:49AM +0000, Jan Beulich wrote:
>> >>>>>> On 30.01.15 at 18:54, <daniel.kiper@xxxxxxxxxx> wrote:
>> >>>>   - xen.efi build will not so strongly depend
>> >>>>     on a given GCC and binutils version.
>> >>> While I can see the possibility of making the binutils version
>> >>> dependency go away (by manually creating the PE header), I can't
>> >>> see how you'd overcome the gcc one: The MS calling convention
>> >>> support is still going to be needed (not having looked at the patches
>> >> Right, I forgot about that one.
>> >>
>> >>> themselves yet, I can't see myself accepting the introduction of
>> >>> stubs to convert between calling conventions).
>> >
>> > How about __attribute__((ms_abi)) ?  It would appear to exist for this
>> > purpose.
>>
>> But that's the point: Older compilers don't support it. And with
>> compilers supporting it we need no stubs.
>>
> ms_abi has been around for years. What's your minimum compiler requirement?

4.1

Jan

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