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From: Thomas Gleixner <>
To: "Chen, Rong A" <>,
	Dave Hansen <>,
	kernel test robot <>,
	Dave Hansen <>
	Andrew Morton <>,
	Linux Memory Management List <>
Subject: Re: [kbuild-all] Re: sparc64-linux-gcc: error: unrecognized command-line option '-mxsave'
Date: Fri, 06 Aug 2021 14:42:36 +0200	[thread overview]
Message-ID: <87a6lu68xv.ffs@tglx> (raw)
In-Reply-To: <>

On Wed, Aug 04 2021 at 17:04, Rong A. Chen wrote:
> On 7/27/2021 10:52 PM, Dave Hansen wrote:
>> On 7/26/21 8:11 PM, kernel test robot wrote:
>>>>> sparc64-linux-gcc: error: unrecognized command-line option '-mxsave'
>> Is there something else funky going on here?  All of the "-mxsave" flags
>> that I can find are under checks for x86 builds, like:
>> 	ifeq ($(CAN_BUILD_I386),1)
>> 	$(BINARIES_32): CFLAGS += -m32 -mxsave
>> 	..
>> I'm confused how we could have a sparc64 compiler (and only a sparc64
>> compiler) that would end up with "-mxsave" in CFLAGS.
> Hi Dave,
> We can reproduce the error and have no idea too, but we have disabled
> the test for selftests on non-x86 arch.

This smells like a host/target compiler mixup. Can you please make the
kernel build verbose with 'V=1' and provide the full build output?



  reply	other threads:[~2021-08-06 12:42 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-27  3:11 kernel test robot
2021-07-27 14:52 ` Dave Hansen
2021-08-04  9:04   ` [kbuild-all] " Chen, Rong A
2021-08-06 12:42     ` Thomas Gleixner [this message]
2021-08-09  1:54       ` Chen, Rong A
2021-08-09 10:17         ` Thomas Gleixner

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