linux-kernel - [PATCH] Perf: Use /usr/bin/pager if available for perf pager

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Date:	Tue, 29 May 2012 16:05:25 +0530
From:	Avik Sil <avik.sil@...aro.org>
To:	a.p.zijlstra@...llo.nl, paulus@...ba.org, mingo@...hat.com,
	acme@...stprotocols.net
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] Perf: Use /usr/bin/pager if available for perf pager

Some Distributions may lack "less" package being included by default, e.g., Linaro nano rootfs. In those cases use the portable "pager" command instead of "less".

Signed-off-by: Avik Sil <avik.sil@...aro.org>
---
 tools/perf/util/pager.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/util/pager.c b/tools/perf/util/pager.c
index 1915de2..3322b84 100644
--- a/tools/perf/util/pager.c
+++ b/tools/perf/util/pager.c
@@ -57,6 +57,10 @@ void setup_pager(void)
 	}
 	if (!pager)
 		pager = getenv("PAGER");
+	if (!pager) {
+		if (!access("/usr/bin/pager", X_OK))
+			pager = "/usr/bin/pager";
+	}
 	if (!pager)
 		pager = "less";
 	else if (!*pager || !strcmp(pager, "cat"))
-- 
1.7.9.5

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