[PATCH v1 04/13] perf build: Error if no libelf and NO_LIBELF isn't set

[Ian Rogers]

Building without libelf support is going disable a lot of
functionality. Require that the NO_LIBELF=1 build option is passed if
this is intentional.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
 tools/perf/Makefile.config | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index a68a3e9b47ae..5691e2ffb1b9 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -426,15 +426,7 @@ else
       LIBC_SUPPORT := 1
     endif
     ifeq ($(LIBC_SUPPORT),1)
-      msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
-
-      NO_LIBELF := 1
-      NO_DWARF := 1
-      NO_DEMANGLE := 1
-      NO_LIBUNWIND := 1
-      NO_LIBDW_DWARF_UNWIND := 1
-      NO_LIBBPF := 1
-      NO_JVMTI := 1
+      msg := $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
     else
       ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
         ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
-- 
2.40.0.rc1.284.g88254d51c5-goog