From: Steven Rostedt (Red Hat) Date: Tue, 3 Jun 2014 03:20:16 +0000 (-0400) Subject: tools lib traceevent: Added support for __get_bitmask() macro X-Git-Tag: omap-for-v3.16/fixes-rc4~70^2^2~2^2~10 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=473a778a2f2949972b52ad7fc61577f381f2d05e;p=pandora-kernel.git tools lib traceevent: Added support for __get_bitmask() macro Coming in v3.16, trace events will be able to save bitmasks in raw format in the ring buffer and output it with the __get_bitmask() macro. In order for userspace tools to parse this, it must be able to handle the __get_bitmask() call and be able to convert the data that's in the ring buffer into a nice bitmask format. The output is similar to what the kernel uses to print bitmasks, with a comma separator every 4 bytes (8 characters). This allows for cpumasks to also be saved efficiently. The first user is the thermal:thermal_power_limit event which has the following output: thermal_power_limit: cpus=0000000f freq=1900000 cdev_state=0 power=5252 Link: http://lkml.kernel.org/r/20140506132238.22e136d1@gandalf.local.home Suggested-by: Javi Merino Signed-off-by: Steven Rostedt Acked-by: Namhyung Kim Tested-by: Javi Merino Link: http://lkml.kernel.org/r/20140603032224.229186537@goodmis.org Signed-off-by: Jiri Olsa --- Reading git-diff-tree failed