linux-kernel - Re: ILP32 for ARM64: testing with glibc testsuite

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Date:   Thu, 17 Nov 2016 13:45:36 -0800
From:   Steve Ellcey <sellcey@...iumnetworks.com>
To:     Maxim Kuvyrkov <maxim.kuvyrkov@...aro.org>,
        Yury Norov <ynorov@...iumnetworks.com>
CC:     <arnd@...db.de>, <catalin.marinas@....com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <linux-arch@...r.kernel.org>,
        GNU C Library <libc-alpha@...rceware.org>,
        <schwidefsky@...ibm.com>, <heiko.carstens@...ibm.com>,
        Andrew Pinski <pinskia@...il.com>, <broonie@...nel.org>,
        "Joseph S. Myers" <joseph@...esourcery.com>,
        <christoph.muellner@...obroma-systems.com>,
        <bamvor.zhangjian@...wei.com>,
        Szabolcs Nagy <szabolcs.nagy@....com>,
        <klimov.linux@...il.com>, <Nathan_Lynch@...tor.com>,
        <agraf@...e.de>, Prasun Kapoor <Prasun.Kapoor@...iumnetworks.com>,
        <kilobyte@...band.pl>, Geert Uytterhoeven <geert@...ux-m68k.org>,
        "Dr. Philipp Tomsich" <philipp.tomsich@...obroma-systems.com>,
        <manuel.montezelo@...il.com>, <linyongting@...wei.com>,
        <davem@...emloft.net>, <zhouchengming1@...wei.com>,
        <cmetcalf@...hip.com>,
        Adhemerval Zanella <adhemerval.zanella@...aro.org>
Subject: Re: ILP32 for ARM64: testing with glibc testsuite

On Wed, 2016-11-16 at 15:22 +0400, Maxim Kuvyrkov wrote:
> > 
> > On Nov 9, 2016, at 1:56 PM, Yury Norov <ynorov@...iumnetworks.com>
> > wrote:
> > 
> > > 
> > > Below is the results of glibc testsuite run for aarch64/lp64

I have been running the glibc testsuite as well.  I have only run it on
an ILP32 enabled kernel.  Using that kernel, top-of-tree glibc, and the
ILP32 glibc patches I have no LP64 regressions.  There are 5 failures
in LP64 mode but I get them with vanilla top-of-tree glibc sources too.
They are:
	nptl/eintr1 (I actually don't run this because it kills the 'make check')
	debug/tst-backtrace5
	debug/tst-backtrace6
	nptl/tst-stack4
	nptl/tst-thread_local1

In ILP32 mode I get 33 failures, they include the above failures (minus
nptl/tst-thread_local1) plus:

	c++-types-check
	conform/ISO11/inttypes.h/conform
	conform/ISO11/stdint.h/conform
	conform/ISO99/inttypes.h/conform
	conform/ISO99/stdint.h/conform
	conform/POSIX2008/inttypes.h/conform
	conform/POSIX2008/stdint.h/conform
	conform/XOPEN2K/inttypes.h/conform
	conform/XOPEN2K/stdint.h/conform
	conform/XOPEN2K8/inttypes.h/conform
	conform/XOPEN2K8/stdint.h/conform
	elf/tst-tls1
	elf/tst-tls1-static
	elf/tst-tls2
	elf/tst-tls2-static
	elf/tst-tls3
	math/check-abi-libm
	math/test-double
	math/test-double-finite
	math/test-float
	math/test-float-finite
	misc/tst-sync_file_range
	nptl/tst-cancel26
	nptl/tst-cancel27
	nptl/tst-sem3
	rt/tst-mqueue1
	rt/tst-mqueue2
	rt/tst-mqueue4
	rt/tst-mqueue7
	stdlib/tst-makecontext3

I am currently looking at these ILP32 regressions (starting with the
tls failures) to see if I can figure out what is happening with them.

Steve Ellcey
sellcey@...iumnetworks.com