perf tools: Warn about missing libelf

[platform/adaptation/renesas_rcar/renesas_kernel.git] / tools / perf / Makefile

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 7e25f59..b1801e0 100644 (file)
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -490,6 +490,8 @@ ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
                LIBC_SUPPORT := 1
        endif
        ifeq ($(LIBC_SUPPORT),1)
+               msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
+
                NO_LIBELF := 1
                NO_DWARF := 1
                NO_DEMANGLE := 1