From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B9BA5BA34 for ; Wed, 23 Aug 2023 11:36:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12D3AC433C7; Wed, 23 Aug 2023 11:36:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692790611; bh=o8vy5BJWPXwe5Sc85tpSC7movFesjnPX1nkI7u08f4o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dRMYYoyjlauIdmlFOtqgAgHEYpVyKhSaIG0wbfmOoEesPPa0Iqlksw5ktSZIoUiql tT+JQu6IIiG+2KF9x031McSW+wOXRbXMC6oKT9z95Nl19dp1tZbF+38+IWXOKgtCXl OWc25vNL2gLATzr5V8B6L5zsEDx56CgzfvImp4Zo/9Qx1cpnbGBcsdJgaGN2oUt7LZ fX4Geo7smizUI10ROOOdmgYLjSjDnMTaVEOjjLrxQ3BEyv8zBbnKIOxsnawNVz8oUF IB+2MjqP1/j3KawHmKRiwYdsng2Z666p0gd6usdBlKxYL/S/DpcwOtELkGamnCAce3 6RX0Z0bQIeNbA== Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id 1191040722; Wed, 23 Aug 2023 08:36:49 -0300 (-03) Date: Wed, 23 Aug 2023 08:36:49 -0300 From: Arnaldo Carvalho de Melo To: Yanteng Si Cc: mingo@redhat.com, peterz@infradead.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, namhyung@kernel.org, irogers@google.com, adrian.hunter@intel.com, chenhuacai@kernel.org, linux-perf-users@vger.kernel.org, loongson-kernel@lists.loongnix.cn, loongarch@lists.linux.dev Subject: Re: [PATCH v1 1/2] perf/trace: Fix mmap_flags for archs use generic mman.h Message-ID: References: <03ddc1c0e01518df63aac88e561cd0ec3c1e0028.1692694595.git.siyanteng@loongson.cn> <8ead439a-63aa-434e-9d1e-3b1b05b6347b@loongson.cn> Precedence: bulk X-Mailing-List: loongarch@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <8ead439a-63aa-434e-9d1e-3b1b05b6347b@loongson.cn> X-Url: http://acmel.wordpress.com Em Wed, Aug 23, 2023 at 03:11:01PM +0800, Yanteng Si escreveu: > > 在 2023/8/23 02:02, Arnaldo Carvalho de Melo 写道: > > Em Tue, Aug 22, 2023 at 05:32:06PM +0800, Yanteng Si escreveu: > > > Silence this warning: > > > > > > grep: /root/linux-next/tools/arch/xxxxx/include/uapi/asm//mman.h: > > > No such file or directory > > > Signed-off-by: Yanteng Si > > > --- > > > tools/perf/trace/beauty/mmap_flags.sh | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/tools/perf/trace/beauty/mmap_flags.sh b/tools/perf/trace/beauty/mmap_flags.sh > > > index 3022597c8c17..d035b29fc5ec 100755 > > > --- a/tools/perf/trace/beauty/mmap_flags.sh > > > +++ b/tools/perf/trace/beauty/mmap_flags.sh > > > @@ -19,7 +19,7 @@ arch_mman=${arch_header_dir}/mman.h > > > printf "static const char *mmap_flags[] = {\n" > > > regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MAP_([[:alnum:]_]+)[[:space:]]+(0x[[:xdigit:]]+)[[:space:]]*.*' > > > -grep -E -q $regex ${arch_mman} && \ > > > +([ -f ${arch_mman} ] && grep -E -q $regex ${arch_mman}) && \ > > > (grep -E $regex ${arch_mman} | \ > > > sed -r "s/$regex/\2 \1 \1 \1 \2/g" | \ > > > xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n#ifndef MAP_%s\n#define MAP_%s %s\n#endif\n") > > Humm, wouldn't this be simpler without that extra subshell? Like this: > > > > diff --git a/tools/perf/trace/beauty/mmap_flags.sh b/tools/perf/trace/beauty/mmap_flags.sh > > index 3022597c8c178f21..0ac1886a83b5aceb 100755 > > --- a/tools/perf/trace/beauty/mmap_flags.sh > > +++ b/tools/perf/trace/beauty/mmap_flags.sh > > @@ -19,6 +19,7 @@ arch_mman=${arch_header_dir}/mman.h > > printf "static const char *mmap_flags[] = {\n" > > regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MAP_([[:alnum:]_]+)[[:space:]]+(0x[[:xdigit:]]+)[[:space:]]*.*' > > +test -f ${arch_mman} && \ > > The following lines have already used the [ ! -f ${arch_mman}, so let's stay > consistent？ Well, we can make it consistent by simplifying the other places where the long, equivalent test is being done, which I think is the way to go, agreed? - Arnaldo > > Thanks, > > Yanteng > > > grep -E -q $regex ${arch_mman} && \ > > (grep -E $regex ${arch_mman} | \ > > sed -r "s/$regex/\2 \1 \1 \1 \2/g" | \ > -- - Arnaldo