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perf tools: Fix pager on minimal-install embedded systems

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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@linaro.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1338287725-26382-1-git-send-email-avik.sil@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Avik Sil
2012-05-29 16:05:25 +05:30
committed by Arnaldo Carvalho de Melo
parent f1439c315b
commit ea1b3ebac9
1 changed files with 4 additions and 0 deletions
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4
tools/perf/util/pager.c
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@@ -57,6 +57,10 @@ void setup_pager(void)
} }
if (!pager) if (!pager)
pager = getenv("PAGER"); pager = getenv("PAGER");
if (!pager) {
if (!access("/usr/bin/pager", X_OK))
pager = "/usr/bin/pager";
}
if (!pager) if (!pager)
pager = "less"; pager = "less";
else if (!*pager || !strcmp(pager, "cat")) else if (!*pager || !strcmp(pager, "cat"))