Re: [Qemu-devel] [PATCH 1/1] tests: Add migration test for aarch64

[Wei Huang]

On 10/04/2018 09:17 AM, Thomas Huth wrote:
> On 2018-10-04 15:48, Andrew Jones wrote:
>> On Fri, Sep 28, 2018 at 03:47:35PM -0400, Wei Huang wrote:
> [...]
>>> diff --git a/tests/migration/aarch64/Makefile 
>>> b/tests/migration/aarch64/Makefile
>>> new file mode 100644
>>> index 0000000..d440fa8
>>> --- /dev/null
>>> +++ b/tests/migration/aarch64/Makefile
>>> @@ -0,0 +1,20 @@
>>> +# To specify cross compiler prefix, use CROSS_PREFIX=
>>> +#   $ make CROSS_PREFIX=aarch64-linux-gnu-
>>> +
>>> +.PHONY: all clean
>>> +all: a-b-kernel.h
>>> +
>>> +a-b-kernel.h: aarch64.kernel
>>> +   echo "$$__note" > header.tmp
>>> +   xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
>>> +   mv header.tmp $@
>>> +
>>> +aarch64.kernel: aarch64.elf
>>> +   $(CROSS_PREFIX)objcopy -O binary $< $@
>>> +
>>> +aarch64.elf: a-b-kernel.S
>>> +   $(CROSS_PREFIX)gcc -o $@ -nostdlib -Wl,--build-id=none $<
>>> +
>>> +clean:
>>> +   @rm -rf *.kernel *.elf
>>
>> I don't think we need/want '-f'. Why not use $(RM)?
> 
> Does $(RM) work now in the QEMU Makefiles? AFAIK we are disabling the
> standard variables in rules.mak ("MAKEFLAGS += -rR"), but never set RM
> again...

This Makefile isn't part of QEMU regular build process (as Juan pointed
it out before: most people won't run/care it unless they want to change
the aarch64 migration test case themselves). So rules.mak isn't
included. As a result, $(RM) is still available.

I just sent in a V2 version to address Philippe's comments, in which I
fix @rm anyway.

PS: No cover letter to show V1->V2 difference as it is a very
straightforward.



> 
>  Thomas
>