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perf tools: Add cat as fallback pager

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This patch adds a fallback to cat for the pager. This is useful
on environments, such as Android, where less does not exist.
It is better to default to cat than to abort.

Signed-off-by: Michael Lentine <mlentine@google.com>
Reviewed-by: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1400579330-5043-2-git-send-email-eranian@google.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
This commit is contained in:
Michael Lentine 2014-05-20 11:48:49 +02:00 committed by Jiri Olsa
parent f21d181529
commit 21cfc5e103
1 changed files with 6 additions and 6 deletions
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12
tools/perf/util/pager.c
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@ -57,13 +57,13 @@ void setup_pager(void)
}
if (!pager)
pager = getenv("PAGER");
if (!pager) {
if (!access("/usr/bin/pager", X_OK))
pager = "/usr/bin/pager";
}
if (!(pager || access("/usr/bin/pager", X_OK)))
pager = "/usr/bin/pager";
if (!(pager || access("/usr/bin/less", X_OK)))
pager = "/usr/bin/less";
if (!pager)
pager = "less";
else if (!*pager || !strcmp(pager, "cat"))
pager = "cat";
if (!*pager || !strcmp(pager, "cat"))
return;
spawned_pager = 1; /* means we are emitting to terminal */