[tip:perf/core] perf beauty: Add generator for 'move_mount' flags argument

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  eefa09b499d12883f2fad46f93379101c8da6fec
Gitweb:     https://git.kernel.org/tip/eefa09b499d12883f2fad46f93379101c8da6fec
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Mon, 20 May 2019 14:16:49 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 28 May 2019 18:37:42 -0300

perf beauty: Add generator for 'move_mount' flags argument

  $ tools/perf/trace/beauty/move_mount_flags.sh
  static const char *move_mount_flags[] = {
	  [ilog2(0x00000001) + 1] = "F_SYMLINKS",
	  [ilog2(0x00000002) + 1] = "F_AUTOMOUNTS",
	  [ilog2(0x00000004) + 1] = "F_EMPTY_PATH",
	  [ilog2(0x00000010) + 1] = "T_SYMLINKS",
	  [ilog2(0x00000020) + 1] = "T_AUTOMOUNTS",
	  [ilog2(0x00000040) + 1] = "T_EMPTY_PATH",
  };
  $

Will be wired up to the 'perf trace' arg in a followup patch.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Brendan Gregg <brendan.d.gregg@xxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Luis ClÃudio GonÃalves <lclaudio@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-px7v33suw1k2ehst52l7bwa3@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/trace/beauty/move_mount_flags.sh | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tools/perf/trace/beauty/move_mount_flags.sh b/tools/perf/trace/beauty/move_mount_flags.sh
new file mode 100755
index 000000000000..55e59241daa4
--- /dev/null
+++ b/tools/perf/trace/beauty/move_mount_flags.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+# SPDX-License-Identifier: LGPL-2.1
+
+if [ $# -ne 1 ] ; then
+	linux_header_dir=tools/include/uapi/linux
+else
+	linux_header_dir=$1
+fi
+
+linux_mount=${linux_header_dir}/mount.h
+
+printf "static const char *move_mount_flags[] = {\n"
+regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MOVE_MOUNT_([FT]_[[:alnum:]_]+)[[:space:]]+(0x[[:xdigit:]]+)[[:space:]]*.*'
+egrep $regex ${linux_mount} | \
+	sed -r "s/$regex/\2 \1/g"	| \
+	xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n"
+printf "};\n"