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From: Adrian Hunter <adrian.hunter@intel.com>
To: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jiri Olsa <jolsa@redhat.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Ingo Molnar <mingo@redhat.com>,
	linux-kernel@vger.kernel.org, David Ahern <dsahern@gmail.com>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Mike Galbraith <efault@gmx.de>, Namhyung Kim <namhyung@gmail.com>,
	Paul Mackerras <paulus@samba.org>,
	Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH 13/19] perf tools: Fix libunwind build and feature detection for 32-bit build
Date: Tue, 22 Oct 2013 10:40:12 +0300	[thread overview]
Message-ID: <52662BDC.5040101@intel.com> (raw)
In-Reply-To: <20131021141428.GB2245@ghostprotocols.net>

On 21/10/13 17:14, Arnaldo Carvalho de Melo wrote:
> Em Sun, Oct 20, 2013 at 10:43:46PM +0200, Jiri Olsa escreveu:
>> On Fri, Oct 18, 2013 at 03:29:10PM +0300, Adrian Hunter wrote:
>>> Use -lunwind-x86 instead of -lunwind-x86_64 for 32-bit build.
> 
>>> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
> 
>> Acked-by: Jiri Olsa <jolsa@redhat.com>
> 
> Doesn't apply because it depends on a patch in this series that I made a
> question about, the "CFLAGS=-g ... one, but then can we avoid touching
> this feature_check_code line with feature specific stuff, i.e. can't we
> just touch LDFLAGS or CFLAGS?

Because LDFLAGS and CFLAGS are used for all tests, all tests would
fail if any feature libraries were not present.

Also because 'make' invokes 'make' via a shell, it is not possible
to export variables.

That just leaves the command line as far as I can see.

> 
> - Arnaldo
> 
> --- tools/perf/config/Makefile
> +++ tools/perf/config/Makefile
> @@ -94,7 +96,7 @@
>  
>  feature_check = $(eval $(feature_check_code))
>  define feature_check_code
> -  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(CFLAGS)" LDFLAGS=$(LDFLAGS) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
> +  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(CFLAGS)" LDFLAGS=$(LDFLAGS) LIBUNWIND_LIBS="$(LIBUNWIND_LIBS)" -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
>  endef
>  
>  feature_set = $(eval $(feature_set_code))
> 
> 


  reply	other threads:[~2013-10-22  7:40 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-18 12:28 [PATCH 00/19] perf tools: fixes and tweaks Adrian Hunter
2013-10-18 12:28 ` [PATCH 01/19] perf evsel: Add missing 'mmap2' from debug print Adrian Hunter
2013-10-23  7:53   ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:28 ` [PATCH 02/19] perf evsel: Add a debug print if perf_event_open fails Adrian Hunter
2013-10-18 12:29 ` [PATCH 03/19] perf record: Improve write_output error message Adrian Hunter
2013-10-20 20:43   ` Jiri Olsa
2013-10-21  6:07     ` Adrian Hunter
2013-10-21  8:48       ` Jiri Olsa
2013-10-23  7:53   ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 04/19] perf evsel: Add missing decrement in id sample parsing Adrian Hunter
2013-10-20 20:44   ` Jiri Olsa
2013-10-23  7:53   ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 05/19] perf session: Add missing sample flush for piped events Adrian Hunter
2013-10-20 20:45   ` Jiri Olsa
2013-10-23  7:53   ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 06/19] perf session: Add missing members to perf_event__attr_swap() Adrian Hunter
2013-10-20 20:47   ` Jiri Olsa
2013-10-23  7:53   ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 07/19] perf script: Set up output options for in-stream attributes Adrian Hunter
2013-10-18 13:30   ` David Ahern
2013-10-18 14:32     ` Arnaldo Carvalho de Melo
2013-10-22  7:35       ` Adrian Hunter
2013-10-18 12:29 ` [PATCH 08/19] perf inject: Do not repipe attributes to a perf.data file Adrian Hunter
2013-10-18 12:29 ` [PATCH 09/19] perf tools: Fix 32-bit cross build Adrian Hunter
2013-10-20 20:42   ` Jiri Olsa
2013-10-21  5:53     ` Adrian Hunter
2013-10-21  8:46       ` Jiri Olsa
2013-10-21  9:02         ` Adrian Hunter
2013-10-21 14:12   ` Arnaldo Carvalho de Melo
2013-10-21 18:29     ` Adrian Hunter
2013-10-18 12:29 ` [PATCH 10/19] perf evlist: Fix 32-bit build error Adrian Hunter
2013-10-23  7:53   ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 11/19] perf tools: Fix test_on_exit for 32-bit build Adrian Hunter
2013-10-23  7:53   ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 12/19] perf tools: Fix bench/numa.c " Adrian Hunter
2013-10-23  7:54   ` [tip:perf/core] " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 13/19] perf tools: Fix libunwind build and feature detection " Adrian Hunter
2013-10-20 20:43   ` Jiri Olsa
2013-10-21 14:14     ` Arnaldo Carvalho de Melo
2013-10-22  7:40       ` Adrian Hunter [this message]
2013-10-18 12:29 ` [PATCH 14/19] perf evlist: Add a debug print if event buffer mmap fails Adrian Hunter
2013-10-20 20:43   ` Jiri Olsa
2013-10-18 12:29 ` [PATCH 15/19] perf tools: fix perf_evlist__mmap comments Adrian Hunter
2013-10-23  7:54   ` [tip:perf/core] perf evlist: Fix " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 16/19] perf tools: factor out duplicated evlist mmap code Adrian Hunter
2013-10-23  7:54   ` [tip:perf/core] perf evlist: Factor out duplicated " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 17/19] perf script: print addr by default for BTS Adrian Hunter
2013-10-18 18:20   ` David Ahern
2013-10-23  7:54   ` [tip:perf/core] perf script: Print " tip-bot for Adrian Hunter
2013-10-18 12:29 ` [PATCH 18/19] perf record: add an option to force per-cpu mmaps Adrian Hunter
2013-10-18 12:29 ` [PATCH 19/19] perf tools: allow non-matching sample types Adrian Hunter
2013-10-18 14:25   ` David Ahern
2013-10-18 14:50     ` Adrian Hunter
2013-10-18 15:03       ` David Ahern

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