Messages in this thread | | | Date | Mon, 6 Jan 2014 15:22:20 +0100 | From | Jiri Olsa <> | Subject | Re: [PATCH] perf tools: enable close-on-exec flag on perf file descriptor |
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On Mon, Jan 06, 2014 at 11:51:25AM +0100, Yann Droneaud wrote: > In a previous patch [1][2], flag PERF_FLAG_FD_CLOEXEC was > added to perf_event_open(2) syscall to allows userspace > to enable close-on-exec behavor atomically when creating > the file descriptor. > > This patch makes perf tools use the new flag. > > Beware that perf tools compiled with the new flag won't work > on older kernel which do not support flag PERF_FLAG_FD_CLOEXEC.
I think we should enhance the api probe routines (perf_do_probe_api) to detect that, than just bypass us from running on older kernels
jirka
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