[PATCH 14/41] perf beauty: Add generator for fsmount's 'attr_flags' arg values

Arnaldo Carvalho de Melo
2019-05-29T13:37:24Z

From: Arnaldo Carvalho de Melo <acme@redhat.com>

$ tools/perf/trace/beauty/fsmount.sh
static const char *fsmount_attr_flags[] = {
[ilog2(0x00000001) + 1] = "RDONLY",
[ilog2(0x00000002) + 1] = "NOSUID",
[ilog2(0x00000004) + 1] = "NODEV",
[ilog2(0x00000008) + 1] = "NOEXEC",
[ilog2(0x00000010) + 1] = "NOATIME",
[ilog2(0x00000020) + 1] = "STRICTATIME",
[ilog2(0x00000080) + 1] = "NODIRATIME",
}

MOUNT_ATTR__ATIME and MOUNT_ATTR_RELATIME will be special cased in the
fsmount__scnprintf_flags() beautifier.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-sl24d7m2ge82mfmrbaf1mb0s@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/trace/beauty/fsmount.sh | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
create mode 100755 tools/perf/trace/beauty/fsmount.sh

diff --git a/tools/perf/trace/beauty/fsmount.sh b/tools/perf/trace/beauty/fsmount.sh
new file mode 100755
index 000000000000..615cc0fcf4f9
--- /dev/null
+++ b/tools/perf/trace/beauty/fsmount.sh
@@ -0,0 +1,22 @@
+#!/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
+
+# Remove MOUNT_ATTR_RELATIME as it is zeros, handle it a special way in the beautifier
+# Only handle MOUNT_ATTR_ followed by a capital letter/num as __ is special case
+# for things like MOUNT_ATTR__ATIME that is a mask for the possible ATIME handling
+# bits. Special case it as well in the beautifier
+
+printf "static const char *fsmount_attr_flags[] = {\n"
+regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MOUNT_ATTR_([[:alnum:]][[:alnum:]_]+)[[:space:]]+(0x[[:xdigit:]]+)[[:space:]]*.*'
+egrep $regex ${linux_mount} | grep -v MOUNT_ATTR_RELATIME | \
+ sed -r "s/$regex/\2 \1/g" | \
+ xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n"
+printf "};\n"
--
2.20.1