linux-kernel - Re: arch/x86/um/user-offsets.c:8:24: fatal error: asm/ptrace.h: No such file or directory

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Date:	Fri, 18 Mar 2016 09:58:31 +0100
From:	Richard Weinberger <richard@....at>
To:	Philip Li <philip.li@...el.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	kbuild test robot <fengguang.wu@...el.com>,
	Al Viro <viro@....linux.org.uk>, kbuild-all@...org,
	linux-kernel@...r.kernel.org
Subject: Re: arch/x86/um/user-offsets.c:8:24: fatal error: asm/ptrace.h: No
 such file or directory

Hi!

Am 18.03.2016 um 09:59 schrieb Philip Li:
> On Fri, Mar 18, 2016 at 12:22:25PM +0900, Krzysztof Kozlowski wrote:
>> On 18.03.2016 12:19, Philip Li wrote:
>>> On Mon, Mar 14, 2016 at 09:53:06AM +0900, Krzysztof Kozlowski wrote:
>>>> On Sun, Mar 13, 2016 at 7:45 AM, kbuild test robot
>>>> <fengguang.wu@...el.com> wrote:
>>>>> Hi Al,
>>>>>
>>>>> FYI, the error/warning still remains.
>>>>>
>>>>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>>>>> head:   03c668a93187fe7fba9464f96fbe7c22eebd9897
>>>>> commit: 5c48b108ecbf6505d929e64d50dace13ac2bdf34 um: take arch/um/sys-x86 to arch/x86/um
>>>>> date:   4 years, 4 months ago
>>>>> config: um-i386_defconfig (attached as .config)
>>>>> reproduce:
>>>>>         git checkout 5c48b108ecbf6505d929e64d50dace13ac2bdf34
>>>>>         # save the attached .config to linux build tree
>>>>>         make ARCH=um SUBARCH=i386
>>>>>
>>>>
>>>> Hi,
>>>>
>>>> The code is correct. The build machine lacks asm/ptrace.h for i386
>>>> (e.g. /usr/include/i386-linux-gnu/asm/ptrace.h). For example on Ubuntu
>>>> this is provided by linux-libc-dev:i386.
>>>
>>> sorry for late response, we have installed linux-libc-dev:i386 on our build environment to have this head file.
>>
>> ... and does it help? Is the issue fixed?
> thanks, this package does help, and head can be successfully found, though there appears a different problem, it is not related to missing ptrace.h.
> 
> 2016-03-18_15:19:56 O: /kbuild-tests/branch-queue/lkp-hsx03-um/ CREATE,ISDIR linux-review:Rajesh-Bhagat:usb-xhci-Fix-incomplete-PM-resume-operation-due-to-XHCI-commmand-timeout:20160318-151914
> 2016-03-18_15:20:34 O: 2016-03-18 15:20  Running /kbuild-tests/build-queue/lkp-hsx03-um/um-i386_defconfig-gcc-4.9-5c48b108ecbf6505d929e64d50dace13ac2bdf34
> 2016-03-18_15:20:34 O: git checkout -B build-queue 5c48b108ecbf6505d929e64d50dace13ac2bdf34
> 2016-03-18_15:22:06 E: 29 real  371 user  52 sys  1423.01% cpu  um-i386_defconfig
> 2016-03-18_15:22:07 O: status: FAIL: build error
> 2016-03-18_15:22:07 O: arch/um/os-Linux/start_up.c:348:22: error: 'RLIM_INFINITY' undeclared (first use in this function)
> 2016-03-18_15:22:07 O: arch/um/os-Linux/start_up.c:340:22: error: 'RLIMIT_CORE' undeclared (first use in this function)
> 2016-03-18_15:22:07 O: arch/um/os-Linux/start_up.c:340:2: error: implicit declaration of function 'getrlimit' [-Werror=implicit-function-declaration]
> 2016-03-18_15:22:07 O: arch/um/os-Linux/start_up.c:339:16: error: storage size of 'lim' isn't known

This build issue was fixed a long time ago.
Why are you testing a 4 year old commit? :-)
It misses a lot of fixes which are now needed on newer platforms.

*confused*,
//richard