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-rw-r--r--tools/perf/Documentation/perf-record.txt16
1 files changed, 12 insertions, 4 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 0ff23de9e453..fc46c0b40f6e 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -26,11 +26,19 @@ OPTIONS
26 26
27-e:: 27-e::
28--event=:: 28--event=::
29 Select the PMU event. Selection can be a symbolic event name 29 Select the PMU event. Selection can be:
30 (use 'perf list' to list all events) or a raw PMU
31 event (eventsel+umask) in the form of rNNN where NNN is a
32 hexadecimal event descriptor.
33 30
31 - a symbolic event name (use 'perf list' to list all events)
32
33 - a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a
34 hexadecimal event descriptor.
35
36 - a hardware breakpoint event in the form of '\mem:addr[:access]'
37 where addr is the address in memory you want to break in.
38 Access is the memory access type (read, write, execute) it can
39 be passed as follows: '\mem:addr[:[r][w][x]]'.
40 If you want to profile read-write accesses in 0x1000, just set
41 'mem:0x1000:rw'.
34-a:: 42-a::
35 System-wide collection. 43 System-wide collection.
36 44