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Subject[PATCH 2/5] perf, tools: Add one liner warning for disabled features
Date
From: Andi Kleen <ak@linux.intel.com>

Add a one liner warning for perf features that need to be enabled
explicitly by the user, so that they know they are missing something.
Currently enabled for XED and BABELTRACE.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/Makefile.config | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 05dfa31506b6..e313739238a8 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -65,6 +65,8 @@ ifneq ($(ARCH),$(filter $(ARCH),x86 arm))
NO_LIBDW_DWARF_UNWIND := 1
endif

+DISABLED_FEATURES =
+
ifeq ($(LIBUNWIND_LIBS),)
NO_LIBUNWIND := 1
endif
@@ -696,6 +698,8 @@ ifdef XED
EXTLIBS += -lxed
$(call detected,CONFIG_XED)
endif
+else
+ DISABLED_FEATURES += XED
endif

ifndef NO_LZMA
@@ -770,6 +774,8 @@ ifdef LIBBABELTRACE
else
msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
endif
+else
+ DISABLED_FEATURES += LIBBABELTRACE
endif

ifndef NO_AUXTRACE
@@ -841,6 +847,10 @@ ifdef LIBCLANGLLVM
endif
endif

+ifneq ($(DISABLED_FEATURES),)
+ $(warning Disabled features, need explicit enabling by user: $(DISABLED_FEATURES))
+endif
+
# Among the variables below, these:
# perfexecdir
# template_dir
--
2.9.3
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