1 files changed, 62 insertions, 0 deletions
diff --git a/tools/perf/bash_completion b/tools/perf/bash_completion
new file mode 100644
index 00000000000..56e6a12aab5
--- /dev/null
+++ b/tools/perf/bash_completion
@@ -0,0 +1,62 @@
+# perf completion
+
+function_exists()
+{
+	declare -F $1 > /dev/null
+	return $?
+}
+
+function_exists __ltrim_colon_completions ||
+__ltrim_colon_completions()
+{
+	if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then
+		# Remove colon-word prefix from COMPREPLY items
+		local colon_word=${1%${1##*:}}
+		local i=${#COMPREPLY[*]}
+		while [[ $((--i)) -ge 0 ]]; do
+			COMPREPLY[$i]=${COMPREPLY[$i]#"$colon_word"}
+		done
+	fi
+}
+
+have perf &&
+_perf()
+{
+	local cur prev cmd
+
+	COMPREPLY=()
+	if function_exists _get_comp_words_by_ref; then
+		_get_comp_words_by_ref -n : cur prev
+	else
+		cur=$(_get_cword :)
+		prev=${COMP_WORDS[COMP_CWORD-1]}
+	fi
+
+	cmd=${COMP_WORDS[0]}
+
+	# List perf subcommands or long options
+	if [ $COMP_CWORD -eq 1 ]; then
+		if [[ $cur == --* ]]; then
+			COMPREPLY=( $( compgen -W '--help --version \
+			--exec-path --html-path --paginate --no-pager \
+			--perf-dir --work-tree --debugfs-dir' -- "$cur" ) )
+		else
+			cmds=$($cmd --list-cmds)
+			COMPREPLY=( $( compgen -W '$cmds' -- "$cur" ) )
+		fi
+	# List possible events for -e option
+	elif [[ $prev == "-e" && "${COMP_WORDS[1]}" == @(record|stat|top) ]]; then
+		evts=$($cmd list --raw-dump)
+		COMPREPLY=( $( compgen -W '$evts' -- "$cur" ) )
+		__ltrim_colon_completions $cur
+	# List long option names
+	elif [[ $cur == --* ]];  then
+		subcmd=${COMP_WORDS[1]}
+		opts=$($cmd $subcmd --list-opts)
+		COMPREPLY=( $( compgen -W '$opts' -- "$cur" ) )
+	# Fall down to list regular files
+	else
+		_filedir
+	fi
+} &&
+complete -F _perf perf