From: "Steven Rostedt (VMware)" rostedt@goodmis.org
The tools/lib/traceevent/Makefile had a test added to it to detect a failure of the "nm" when making the dynamic list file (whatever that is). The problem is that the test sorts the values "U W w" and some versions of sort will place "w" ahead of "W" (even though it has a higher ASCII value, and break the test.
Add 'tr "w" "W"' to merge the two and not worry about the ordering.
Reported-by: Tzvetomir Stoyanov tstoyanov@vmware.com Signed-off-by: Steven Rostedt (VMware) rostedt@goodmis.org Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: David Carrillo-Cisneros davidcc@google.com Cc: He Kuang hekuang@huawei.com Cc: Jiri Olsa jolsa@kernel.org Cc: Michal rarek mmarek@suse.com Cc: Paul Turner pjt@google.com Cc: Peter Zijlstra peterz@infradead.org Cc: Stephane Eranian eranian@google.com Cc: Uwe Kleine-König u.kleine-koenig@pengutronix.de Cc: Wang Nan wangnan0@huawei.com Cc: stable@vger.kernel.org Fixes: 6467753d61399 ("tools lib traceevent: Robustify do_generate_dynamic_list_file") Link: http://lkml.kernel.org/r/20190805130150.25acfeb1@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com --- tools/lib/traceevent/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile index 3292c290654f..8352d53dcb5a 100644 --- a/tools/lib/traceevent/Makefile +++ b/tools/lib/traceevent/Makefile @@ -266,8 +266,8 @@ endef
define do_generate_dynamic_list_file symbol_type=`$(NM) -u -D $1 | awk 'NF>1 {print $$1}' | \ - xargs echo "U W w" | tr ' ' '\n' | sort -u | xargs echo`;\ - if [ "$$symbol_type" = "U W w" ];then \ + xargs echo "U w W" | tr 'w ' 'W\n' | sort -u | xargs echo`;\ + if [ "$$symbol_type" = "U W" ];then \ (echo '{'; \ $(NM) -u -D $1 | awk 'NF>1 {print "\t"$$2";"}' | sort -u;\ echo '};'; \