From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 28 Jan 2015 14:48:59 +0000 (+0100)
Subject: Merge branch 'perf/hw_breakpoints' into perf/core
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b3890e4704594fa23abe1395d1fafc97d3214be8;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

Merge branch 'perf/hw_breakpoints' into perf/core

The new hw_breakpoint bits are now ready for v3.20, merge them
into the main branch, to avoid conflicts.

Conflicts:
	tools/perf/Documentation/perf-record.txt

Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

b3890e4704594fa23abe1395d1fafc97d3214be8
diff --cc tools/perf/Documentation/perf-record.txt
index 7d8df2e5edd8,81a20f21a3e6..31e977459c51
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@@ -33,24 -33,15 +33,27 @@@ OPTION
          - a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a
  	  hexadecimal event descriptor.
  
 +	- a symbolically formed PMU event like 'pmu/param1=0x3,param2/' where
 +	  'param1', 'param2', etc are defined as formats for the PMU in
 +	  /sys/bus/event_sources/devices/<pmu>/format/*.
 +
 +	- a symbolically formed event like 'pmu/config=M,config1=N,config3=K/'
 +
 +          where M, N, K are numbers (in decimal, hex, octal format). Acceptable
 +          values for each of 'config', 'config1' and 'config2' are defined by
 +          corresponding entries in /sys/bus/event_sources/devices/<pmu>/format/*
 +          param1 and param2 are defined as formats for the PMU in:
 +          /sys/bus/event_sources/devices/<pmu>/format/*
 +
-         - a hardware breakpoint event in the form of '\mem:addr[:access]'
+         - a hardware breakpoint event in the form of '\mem:addr[/len][:access]'
            where addr is the address in memory you want to break in.
            Access is the memory access type (read, write, execute) it can
-           be passed as follows: '\mem:addr[:[r][w][x]]'.
+           be passed as follows: '\mem:addr[:[r][w][x]]'. len is the range,
+           number of bytes from specified addr, which the breakpoint will cover.
            If you want to profile read-write accesses in 0x1000, just set
            'mem:0x1000:rw'.
+           If you want to profile write accesses in [0x1000~1008), just set
+           'mem:0x1000/8:w'.
  
  --filter=<filter>::
          Event filter.