Commit graph

3 commits

Author SHA1 Message Date
Alex Ray
448f76a1c4 cutils: trace: use ANDROID_SMP to switch atomics
With inline atomics, trace functions have no non-inline function calls
in the fast (tracing off) path.  To enable this, ANDROID_SMP must be
defined for the project.  Otherwise, normal (non-inline) atomics are
used.

Change-Id: Id1f75bdf7db2f5d319a389ad411f55073d78c48c
2012-11-30 19:40:58 -08:00
Alex Ray
e7bb7bca4f cutils: trace: add atrace_update_tags()
Adds a function to read the current trace system property value, and
sets the trace tags to it, do be used as a sysprop change callback.

Change-Id: Ia6336652173aa5b07188898736c2c795a69fe79a
2012-11-28 13:56:49 -08:00
Alex Ray
0a34643160 cutils: Add tracing support
Basic tracing functionality to cutils, which can be turned on at start,
or dynamically controlled by the frameworks.  The goal is for hardware
modules to add tracing that will be controlled by their respective
services.

Change-Id: I84eeb7d6be0038f734e719074fa4a2fae4ffe9c0
2012-11-28 13:56:15 -08:00