[PATCH 5.4 32/90] libtraceevent: Fix build with binutils 2.35

From: Greg Kroah-Hartman
Date: Mon Aug 03 2020 - 08:29:21 EST


From: Ben Hutchings <ben@xxxxxxxxxxxxxxx>

commit 39efdd94e314336f4acbac4c07e0f37bdc3bef71 upstream.

In binutils 2.35, 'nm -D' changed to show symbol versions along with
symbol names, with the usual @@ separator. When generating
libtraceevent-dynamic-list we need just the names, so strip off the
version suffix if present.

Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Tested-by: Salvatore Bonaccorso <carnil@xxxxxxxxxx>
Reviewed-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: linux-trace-devel@xxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
tools/lib/traceevent/plugins/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/lib/traceevent/plugins/Makefile
+++ b/tools/lib/traceevent/plugins/Makefile
@@ -196,7 +196,7 @@ define do_generate_dynamic_list_file
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;\
+ $(NM) -u -D $1 | awk 'NF>1 {sub("@.*", "", $$2); print "\t"$$2";"}' | sort -u;\
echo '};'; \
) > $2; \
else \