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Commit 2bf3b631 authored by Florian Mayer's avatar Florian Mayer
Browse files

Allow access to tracing/per_cpu/cpu?/trace files. 

This is because somes phones take CPUs offline, which leaves data in
per-CPU buffers even when tracing/trace is truncated.

Bug: 79961252

Change-Id: Ida61b1a480f05b89c37f0c8fa7f59d0c7d32621a
parent 5730cc10

cmds/atrace/atrace.rc

+36 −0
Original line number Diff line number Diff line
@@ -127,6 +127,42 @@ on post-fs 
    chmod 0666 /sys/kernel/debug/tracing/trace

    chmod 0666 /sys/kernel/tracing/trace



# Read and truncate the per-CPU kernel trace.

# Cannot use wildcards in .rc files. Update this if there is a phone with

# more CPUs.

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu0/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu0/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu1/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu1/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu2/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu2/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu3/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu3/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu4/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu4/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu5/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu5/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu6/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu6/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu6/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu7/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu8/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu8/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu9/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu9/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu10/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu10/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu11/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu11/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu12/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu12/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu13/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu13/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu14/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu14/trace

    chmod 0666 /sys/kernel/debug/tracing/per_cpu/cpu15/trace

    chmod 0666 /sys/kernel/tracing/per_cpu/cpu15/trace



on property:persist.debug.atrace.boottrace=1

    start boottrace