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[Bug libc/23630] x86 multiarch works only for i686 target
- From: "joseph at codesourcery dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Wed, 12 Sep 2018 12:43:21 +0000
- Subject: [Bug libc/23630] x86 multiarch works only for i686 target
- Auto-submitted: auto-generated
- References: <bug-23630-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=23630
--- Comment #5 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
i386 and x86 sysdeps directories mean different things: i386 is
specifically 32-bit (now i486 or later), x86 is for code shared between
32-bit and 64-bit (code common to i386 and x86_64, including x32).
Note that 32-bit SPARC only has multiarch for sparcv9, 32-bit Power only
has it for POWER4 and later and 32-bit Arm only has it for Armv7 and
later. That is, it's normal for the multiarch support to be only for
modern processors, with an expectation that if someone is building for an
older architecture variant they are building for one particular system
with a particular old processor, not for a general-purpose distribution
that may run on a wide range of hardware.
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