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Re: [PATCH v3 3/3] xen: debug: gcov: add condition coverage support
- To: Anthony PERARD <anthony.perard@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 3 Apr 2025 16:18:09 +0200
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- Cc: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 03 Apr 2025 14:18:25 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 03.04.2025 15:15, Anthony PERARD wrote:
> On Thu, Apr 03, 2025 at 09:30:21AM +0200, Jan Beulich wrote:
>> On 01.04.2025 03:17, Volodymyr Babchuk wrote:
>>> --- a/xen/Rules.mk
>>> +++ b/xen/Rules.mk
>>> @@ -138,6 +138,9 @@ ifeq ($(CONFIG_CC_IS_CLANG),y)
>>> COV_FLAGS := -fprofile-instr-generate -fcoverage-mapping
>>> else
>>> COV_FLAGS := -fprofile-arcs -ftest-coverage
>>> +ifeq ($(CONFIG_CONDITION_COVERAGE),y)
>>> + COV_FLAGS += -fcondition-coverage
>>> +endif
>>> endif
>>
>> Personally I find ifeq() uses like this unhelpful, and would prefer
>>
>> COV_FLAGS-$(CONFIG_CONDITION_COVERAGE) += -fcondition-coverage
>> together with an eventual
>>
>> COV_FLAGS += $(COV_FLAGS-y)
>>
>> (if we don't already have one).
>
> Not we don't. About renaming $(COV_FLAGS) to $(cov-flags-y) instead? It
> is simpler as we stay with a single variable for coverage flags.
I'd be all for doing that.
Jan
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