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Re: [WIP] glibc: Use /lib/ld-linux-armhf.so.3 for ARM's -mfloat-abi=hardABI.
- From: Roland McGrath <roland at hack dot frob dot com>
- To: "Joseph S. Myers" <joseph at codesourcery dot com>
- Cc: Carlos O'Donell <carlos at systemhalted dot org>, libc-ports at sourceware dot org, libc-alpha at sourceware dot org
- Date: Mon, 7 May 2012 14:30:47 -0700 (PDT)
- Subject: Re: [WIP] glibc: Use /lib/ld-linux-armhf.so.3 for ARM's -mfloat-abi=hardABI.
- References: <4F886201.3040200@redhat.com><4F886277.6000006@redhat.com><20120413173512.5D52B2C074@topped-with-meat.com><CADZpyiyr3d8VrBwp_WQyg1H_=w-8hyHw82Vck6U2kv49JtFxPg@mail.gmail.com><4F9515D5.60804@redhat.com><4F99B990.7020300@mentor.com><Pine.LNX.4.64.1204262155510.30855@digraph.polyomino.org.uk><20120426220656.0CC302C0D3@topped-with-meat.com><CADZpyiw=iR9DURWUwY81FS-miA+gFNQdsK7Fkgo_GJAPzJ11+g@mail.gmail.com><CADZpyiwSnQmxsYRMW0zu2uusoq2xf4mVhTjZHUNs+aTq3herPg@mail.gmail.com><20120507184705.4E8D12C080@topped-with-meat.com><Pine.LNX.4.64.1205071908060.16050@digraph.polyomino.org.uk><20120507194124.BD4062C099@topped-with-meat.com><Pine.LNX.4.64.1205072051350.16050@digraph.polyomino.org.uk>
> Ah, it appears "-x assembler-with-cpp" is the critical thing here that
> disables -std processing (I don't know why it does so, offhand).
Ah, good catch. That is pretty bizarre. But for pragmatic issues, I don't
know any reason we especially need -x assembler-with-cpp rather than using
-x c-header or -x c. The difference seems to be passing -lang-asm along to
cc1, which affects cpp in a few ways that seem unlikely to matter to us.
But I'm not really certain what all the differences might be.
In a quick attempt, the only issue I saw was not having the __ASSEMBLER__
predefine, which makes config.h barf. But that is easy to resolve.
Thanks,
Roland