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From: Mark Rutland <mark.rutland@arm.com>
To: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>
Cc: Raphael Gault <raphael.gault@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, mingo@redhat.com,
	peterz@infradead.org, catalin.marinas@arm.com,
	will.deacon@arm.com
Subject: Re: [RFC 1/7] perf: arm64: Compile tests unconditionally
Date: Tue, 28 May 2019 17:16:33 +0100	[thread overview]
Message-ID: <20190528161633.GB28492@lakrids.cambridge.arm.com> (raw)
In-Reply-To: <20190528151938.GC13830@kernel.org>

On Tue, May 28, 2019 at 12:19:38PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Tue, May 28, 2019 at 04:03:14PM +0100, Raphael Gault escreveu:
> > In order to subsequently add more tests for the arm64 architecture
> > we compile the tests target for arm64 systematically.
> 
> Humm, the subject doesn't match the description? I.e. it _was_
> unconditionally built, now it is only built if CONFIG_DWARF_UNWIND is
> set to 'y'.

Perhaps it's hard to read, but we haven't introduced new conditionality.

Previously we'd only build the tests directory if CONFIG_DWARF_UNWIND
was selected, so tests/dwarf-unwind.o was always dependent on that.

Now we always try to build the tests directory, and move the
CONFIG_DWARF_UNWIND guard specifically to tests/dwarf-unwind.o.

Thanks,
Mark.

> 
> - Arnaldo
>  
> > Signed-off-by: Raphael Gault <raphael.gault@arm.com>
> > ---
> >  tools/perf/arch/arm64/Build       | 2 +-
> >  tools/perf/arch/arm64/tests/Build | 2 +-
> >  2 files changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/tools/perf/arch/arm64/Build b/tools/perf/arch/arm64/Build
> > index 36222e64bbf7..a7dd46a5b678 100644
> > --- a/tools/perf/arch/arm64/Build
> > +++ b/tools/perf/arch/arm64/Build
> > @@ -1,2 +1,2 @@
> >  perf-y += util/
> > -perf-$(CONFIG_DWARF_UNWIND) += tests/
> > +perf-y += tests/
> > diff --git a/tools/perf/arch/arm64/tests/Build b/tools/perf/arch/arm64/tests/Build
> > index 41707fea74b3..a61c06bdb757 100644
> > --- a/tools/perf/arch/arm64/tests/Build
> > +++ b/tools/perf/arch/arm64/tests/Build
> > @@ -1,4 +1,4 @@
> >  perf-y += regs_load.o
> > -perf-y += dwarf-unwind.o
> > +perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
> >  
> >  perf-y += arch-tests.o
> > -- 
> > 2.17.1
> 
> -- 
> 
> - Arnaldo

WARNING: multiple messages have this Message-ID (diff)
From: Mark Rutland <mark.rutland@arm.com>
To: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>
Cc: peterz@infradead.org, catalin.marinas@arm.com,
	will.deacon@arm.com, linux-kernel@vger.kernel.org,
	Raphael Gault <raphael.gault@arm.com>,
	mingo@redhat.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [RFC 1/7] perf: arm64: Compile tests unconditionally
Date: Tue, 28 May 2019 17:16:33 +0100	[thread overview]
Message-ID: <20190528161633.GB28492@lakrids.cambridge.arm.com> (raw)
In-Reply-To: <20190528151938.GC13830@kernel.org>

On Tue, May 28, 2019 at 12:19:38PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Tue, May 28, 2019 at 04:03:14PM +0100, Raphael Gault escreveu:
> > In order to subsequently add more tests for the arm64 architecture
> > we compile the tests target for arm64 systematically.
> 
> Humm, the subject doesn't match the description? I.e. it _was_
> unconditionally built, now it is only built if CONFIG_DWARF_UNWIND is
> set to 'y'.

Perhaps it's hard to read, but we haven't introduced new conditionality.

Previously we'd only build the tests directory if CONFIG_DWARF_UNWIND
was selected, so tests/dwarf-unwind.o was always dependent on that.

Now we always try to build the tests directory, and move the
CONFIG_DWARF_UNWIND guard specifically to tests/dwarf-unwind.o.

Thanks,
Mark.

> 
> - Arnaldo
>  
> > Signed-off-by: Raphael Gault <raphael.gault@arm.com>
> > ---
> >  tools/perf/arch/arm64/Build       | 2 +-
> >  tools/perf/arch/arm64/tests/Build | 2 +-
> >  2 files changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/tools/perf/arch/arm64/Build b/tools/perf/arch/arm64/Build
> > index 36222e64bbf7..a7dd46a5b678 100644
> > --- a/tools/perf/arch/arm64/Build
> > +++ b/tools/perf/arch/arm64/Build
> > @@ -1,2 +1,2 @@
> >  perf-y += util/
> > -perf-$(CONFIG_DWARF_UNWIND) += tests/
> > +perf-y += tests/
> > diff --git a/tools/perf/arch/arm64/tests/Build b/tools/perf/arch/arm64/tests/Build
> > index 41707fea74b3..a61c06bdb757 100644
> > --- a/tools/perf/arch/arm64/tests/Build
> > +++ b/tools/perf/arch/arm64/tests/Build
> > @@ -1,4 +1,4 @@
> >  perf-y += regs_load.o
> > -perf-y += dwarf-unwind.o
> > +perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
> >  
> >  perf-y += arch-tests.o
> > -- 
> > 2.17.1
> 
> -- 
> 
> - Arnaldo

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  reply	other threads:[~2019-05-28 16:16 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-28 15:03 [RFC V2 0/7] arm64: Enable access to pmu registers by user-space Raphael Gault
2019-05-28 15:03 ` Raphael Gault
2019-05-28 15:03 ` [RFC 1/7] perf: arm64: Compile tests unconditionally Raphael Gault
2019-05-28 15:03   ` Raphael Gault
2019-05-28 15:19   ` Arnaldo Carvalho de Melo
2019-05-28 15:19     ` Arnaldo Carvalho de Melo
2019-05-28 16:16     ` Mark Rutland [this message]
2019-05-28 16:16       ` Mark Rutland
2019-05-28 15:03 ` [RFC 2/7] perf: arm64: Add test to check userspace access to hardware counters Raphael Gault
2019-05-28 15:03   ` Raphael Gault
2019-05-28 15:03 ` [RFC 3/7] perf: arm64: Use rseq to test userspace access to pmu counters Raphael Gault
2019-05-28 15:03   ` Raphael Gault
2019-05-28 15:03 ` [RFC 4/7] arm64: pmu: Add function implementation to update event index in userpage Raphael Gault
2019-05-28 15:03   ` Raphael Gault
2019-05-29  9:46   ` Peter Zijlstra
2019-05-29  9:46     ` Peter Zijlstra
2019-05-29 10:46     ` Raphael Gault
2019-05-29 10:46       ` Raphael Gault
2019-05-29 10:50       ` Robin Murphy
2019-05-29 10:50         ` Robin Murphy
2019-05-29 12:25         ` Raphael Gault
2019-05-29 12:25           ` Raphael Gault
2019-05-29 12:32           ` Peter Zijlstra
2019-05-29 12:32             ` Peter Zijlstra
2019-05-29 12:39             ` Raphael Gault
2019-05-29 12:39               ` Raphael Gault
2019-05-28 15:03 ` [RFC 5/7] arm64: pmu: Add hook to handle pmu-related undefined instructions Raphael Gault
2019-05-28 15:03   ` Raphael Gault
2019-05-29  9:45   ` Peter Zijlstra
2019-05-29  9:45     ` Peter Zijlstra
2019-05-28 15:03 ` [RFC 6/7] arm64: perf: Enable pmu counter direct access for perf event on armv8 Raphael Gault
2019-05-28 15:03   ` Raphael Gault
2019-05-28 15:03 ` [RFC 7/7] Documentation: arm64: Document PMU counters access from userspace Raphael Gault
2019-05-28 15:03   ` Raphael Gault

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