summaryrefslogtreecommitdiffstats
path: root/tools/perf/Documentation
diff options
context:
space:
mode:
authorKan Liang2019-05-14 22:19:32 +0200
committerArnaldo Carvalho de Melo2019-05-15 21:36:49 +0200
commitaeea9062d949584ac1f2f9a20f0e5ed306539a3e (patch)
treed51a46fb776c3d2bfbecdad20f1d1c640d846adc /tools/perf/Documentation
parentperf vendor events arm64: Add Cortex-A57 and Cortex-A72 events (diff)
downloadkernel-qcow2-linux-aeea9062d949584ac1f2f9a20f0e5ed306539a3e.tar.gz
kernel-qcow2-linux-aeea9062d949584ac1f2f9a20f0e5ed306539a3e.tar.xz
kernel-qcow2-linux-aeea9062d949584ac1f2f9a20f0e5ed306539a3e.zip
perf parse-regs: Split parse_regs
The available registers for --int-regs and --user-regs may be different, e.g. XMM registers. Split parse_regs into two dedicated functions for --int-regs and --user-regs respectively. Modify the warning message. "--user-regs=?" should be applied to show the available registers for --user-regs. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Tested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/1557865174-56264-1-git-send-email-kan.liang@linux.intel.com [ Changed docs as suggested by Ravi and agreed by Kan ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r--tools/perf/Documentation/perf-record.txt3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 27b37624c376..de269430720a 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -406,7 +406,8 @@ symbolic names, e.g. on x86, ax, si. To list the available registers use
--intr-regs=ax,bx. The list of register is architecture dependent.
--user-regs::
-Capture user registers at sample time. Same arguments as -I.
+Similar to -I, but capture user registers at sample time. To list the available
+user registers use --user-regs=\?.
--running-time::
Record running and enabled time for read events (:S)