perf record: auto detect when stdout is a pipe

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This patch gives the ability to 'perf record' to detect when its stdout
has been redirected to a pipe. There's now no more need to add '-o -'
switch in this case.

However '-o <path>' option has always precedence, that is if specified
and stdout has been connected via a pipe then the output will go into
the specified output.

LKML-Reference: <m3ipxo966i.fsf@gmail.com>
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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This commit is contained in:

Franck Bui-Huu 2011-01-16 17:14:45 +01:00 • committed by Arnaldo Carvalho de Melo

parent e80711ca85

commit d7065adb9b

1 changed files with 20 additions and 12 deletions

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32

tools/perf/builtin-record.c

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