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Re: [Xen-devel] Hypervisor build can't work without `python` (Was: Re: Xen commit 9b0bc91b3 possibly removed too much info from README)
- To: Wei Liu <wei.liu2@xxxxxxxxxx>, Kevin Buckley <kevin.buckley.ecs.vuw.ac.nz@xxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Wed, 17 Apr 2019 11:44:36 +0100
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Julien Grall <julien.grall@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>
- Delivery-date: Wed, 17 Apr 2019 10:44:48 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
On 17/04/2019 11:41, Wei Liu wrote:
> On Wed, Apr 17, 2019 at 10:56:57AM +0100, Wei Liu wrote:
>>> Here's what i did having pulled the master at commit cb70a26
>>>
>>> tar xf /path/to/xen-cb70a26.tar.gz
>>>
>>> cd xen-master/
>>>
>>> PYTHON=/usr/bin/python3 ./configure --prefix=/usr \
>>> --disable-seabios \
>>> --disable-qemu-traditional \
>>> --disable-rombios \
>>> --disable-stubdom 2>&1 | tee ../config.log
>>>
>>> make EFI_DIR=/usr/lib/efi world 2>&1 | tee ../make_world_3.out
>>>
>>>
>>> ...
>>> gcc -Wp,-MD,tools/kconfig/.zconf.tab.o.d -D_GNU_SOURCE
>>> -D_DEFAULT_SOURCE -DCURSES_LOC="<ncurses.h>" -DNCURSES_WIDECHAR=1
>>> -DLOCALE -Itools/kconfig -c -o tools/kconfig/zconf.tab.o
>>> tools/kconfig/zconf.tab.c
>>> gcc -o tools/kconfig/conf tools/kconfig/conf.o tools/kconfig/zconf.tab.o
>>> tools/kconfig/conf -s --silentoldconfig Kconfig
>>> make[3]: Leaving directory '/usr/src/xen/xen-master/xen'
>>> make -f Rules.mk _install
>>> make[3]: Entering directory '/usr/src/xen/xen-master/xen'
>>> make -C tools
>>> make[4]: Entering directory '/usr/src/xen/xen-master/xen/tools'
>>> make symbols
>>> make[5]: Entering directory '/usr/src/xen/xen-master/xen/tools'
>>> gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer
>>> -fno-strict-aliasing -Wdeclaration-after-statement -o symbols
>>> symbols.c
>>> make[5]: Leaving directory '/usr/src/xen/xen-master/xen/tools'
>>> make[4]: Leaving directory '/usr/src/xen/xen-master/xen/tools'
>>> make -f /usr/src/xen/xen-master/xen/Rules.mk include/xen/compile.h
>>> make[4]: Entering directory '/usr/src/xen/xen-master/xen'
>>> Xen 4.13-unstable
>>> /bin/sh: python: command not found
>>> make[4]: *** [Makefile:169: include/xen/compile.h] Error 127
>> Here. The PYTHON invocation is from the hypervisor build, not the tools
>> build.
>>
>> Thanks for the log. I will have a closer look.
>>
>>> make[4]: Leaving directory '/usr/src/xen/xen-master/xen'
>>> make[3]: *** [Makefile:137: /usr/src/xen/xen-master/xen/xen] Error 2
>>> make[3]: Leaving directory '/usr/src/xen/xen-master/xen'
>>> make[2]: *** [Makefile:45: install] Error 2
>>> make[2]: Leaving directory '/usr/src/xen/xen-master/xen'
>>> make[1]: *** [Makefile:123: install-xen] Error 2
>>> make[1]: Leaving directory '/usr/src/xen/xen-master'
>>> make: *** [Makefile:165: world] Error 2
>>>
>>>
>>> Note the
>>>
>>> /bin/sh: python: command not found
>>>
> The issue here is on LFS there is no /usr/bin/python. So the hypervisor
> build is broken because xen/include/compile.h invokes
>
> @$(PYTHON) tools/fig-to-oct.py < .banner >> $@.new
>
> There are other appearances of PYTHON in hypervisor build, which are
> equally broken.
>
> We had / have a policy to avoid making hypervisor build dependent on
> configure. I have CC'ed more people on their opinions.
Where has $(PYTHON) got lost? It was specified correctly to begin with.
~Andrew
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