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Re: RFC: Generate lib-names.h and stubs.h from ABI-LIST
On Thu, May 24, 2012 at 3:21 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Thu, May 24, 2012 at 3:18 PM, Joseph S. Myers
> <joseph@codesourcery.com> wrote:
>> On Thu, 24 May 2012, H.J. Lu wrote:
>>
>>> > Anyway, that information should not be repeated in makefiles. ?It's
>>> > already in shlib-versions and everything should just get it from
>>> > there. ?The makefiles can give for each ABI the tuple to match in
>>> > shlib-versions, akin to the ABI entries in shlib-versions.
>>>
>>> The problem is x86-64 build won't see sysdeps/x86_64/x32/shlib-versions
>>> and x32 build won't see sysdeps/x86_64/64/shlib-versions. ?i386 build
>>> won't see neither. ?How does it work?
>>
>> Put them all in sysdeps/x86/shlib-versions, where sysdeps/x86 is a new
>> directory shared by all three ABIs (we know we want such directories
>> anyway to get them all using the same installed headers).
>>
>
> sysdeps/x86_64/64/shlib-versions has
>
> x86_64-.*-linux.* ? ? ? DEFAULT ? ? ? ? ? ? ? ? GLIBC_2.2.5
> x86_64-.*-linux.* ? ? ? ld=ld-linux-x86-64.so.2 GLIBC_2.2.5
>
> sysdeps/x86_64/x32/shlib-versions has
>
> x86_64-.*-linux.* ? ? ? DEFAULT ? ? ? ? ? ? ? ? GLIBC_2.16
> x86_64-.*-linux.* ? ? ? ld=ld-linux-x32.so.2 ? ?GLIBC_2.16
> x86_64-.*-.* ? ? ? ? ? ?ABI ? ? ? ? ? ? ? ? ? ? x32-@OS@
>
> Which one to use for x86-64 and x32 builds?
The only issue is ld=soname. I can try to remove the soname part
and use abi-ld-soname in CPU/Makefile instead.
--
H.J.