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Re: [PATCH 0/5] tools/tests: More cleanup for automation improvements
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 16 Jun 2021 08:38:48 +0200
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- Cc: Ian Jackson <iwj@xxxxxxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 16 Jun 2021 06:39:02 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 15.06.2021 18:19, Andrew Cooper wrote:
> Jan/Roger: x86_emulator and vpci use $(HOSTCC) not $(CC). While they are unit
> tests, we still potentially want to run them in dom0 rather than the build
> environment - particularly for x86_emulator which is heavily CPUID based and
> wants to run on a wide set of hardware. Any issues moving them off $(HOSTCC)?
Well, yes, I'm afraid: If anything, we may need to build two binaries,
or build the one binary two different ways: The "run" (and "run32" for
the emulator harness) target wants a binary built with HOSTCC. The
install target (which prior to your series does nothing) indeed wants
building with CC. So maybe we want something like
install: HOSTCC:=$(CC)
plus suitable detection of whether the opposite set of objects are
presently in the build area, requiring a full rebuild? (Of course this
will work only as long as HOSTCC isn't used for any build time helper
binaries. See "x86emul: test AMX insns" for when this starts not to be
the case anymore for the emulator harness. So we'd need yet another
variable to express this detail.)
Jan
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