Re: [Xen-devel] 4.9rc4: linux.c:27:28: fatal error: xen/sys/evtchn.h: No such file or directory

[Steven Haigh <netwiz@xxxxxxxxx>]

On 10/05/17 01:20, M A Young wrote:
> On Tue, 9 May 2017, Steven Haigh wrote:
> 
>> I'm trying to use the same build procedure I had for working correctly
>> for Xen 4.7 & 4.8.1 - but am coming across this error:
>>
>> gcc  -DPIC -m64 -DBUILD_ID -fno-strict-aliasing -std=gnu99 -Wall
>> -Wstrict-prototypes -Wdeclaration-after-statement
>> -Wno-unused-but-set-variable -Wno-unused-local-typedefs   -g3 -O0
>> -fno-omit-frame-pointer -D__XEN_INTERFACE_VERSION__=__XE
>> N_LATEST_INTERFACE_VERSION__ -MMD -MF .linux.opic.d -D_LARGEFILE_SOURCE
>> -D_LARGEFILE64_SOURCE   -Werror -Wmissing-prototypes -I./include
>> -I/builddir/build/BUILD/xen-4.9.0-rc4/tools/libs/evtchn/../../../tools/include
>> -I/builddir/build/BUI
>> LD/xen-4.9.0-rc4/tools/libs/evtchn/../../../tools/libs/toollog/include
>> -I/builddir/build/BUILD/xen-4.9.0-rc4/tools/libs/evtchn/../../../tools/include
>>  -fPIC -c -o linux.opic linux.c
>> mv headers.chk.new headers.chk
>> linux.c:27:28: fatal error: xen/sys/evtchn.h: No such file or directory
>>  #include <xen/sys/evtchn.h>
>>                             ^
>> compilation terminated.
>> linux.c:27:28: fatal error: xen/sys/evtchn.h: No such file or directory
>>  #include <xen/sys/evtchn.h>
>>                             ^
>> compilation terminated.
>>
>> Any clues as to what to start pulling apart that changed between 4.8.1
>> and 4.9.0-rc4 that could cause this?
> 
> It worked for me in a test build, eg. see one of the builds at
> https://copr.fedorainfracloud.org/coprs/myoung/xentest/build/549124/

Ok, after lots of debugging, when I run 'make dist', I usually use the
macro for smp building, so I end up with:
        make %{?_smp_mflags} dist

It seems this is hit and miss as to it actually working.

I have had a 100% success rate (but slow builds) with:
        make dist

Trying with 'make -j4 dist' seems to work the couple of times I've tried it.

This seems to be a new problem that I haven't come across before in 4.4,
4.5, 4.6, 4.7 or my initial 4.8.1 builds - so its new to 4.9.0 rc's.

The consensus on #xen seems to be that there is a race between libs &
include - and that these are supposed to be built in sequence and not
parallel.

I'm a little over my depth now - as I assume this heads into Makefile land.

If it helps, there is a full build log available at:
        https://cloud.crc.id.au/index.php/s/iTWJE3A1TQBhgDq

I've committed my current progress in my git tree:
        https://xen.crc.id.au/git/?p=xen49;a=tree

Right now, we're looking at lines 304 / 305 of SPECS/xen49.spec

-- 
Steven Haigh

Email: netwiz@xxxxxxxxx
Web: https://www.crc.id.au
Phone: (03) 9001 6090 - 0412 935 897

Attachment: signature.asc
Description: OpenPGP digital signature

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel