So we can see the output of feature compile
in following files:

  tools/build/feature/test-llvm.make.output
  tools/build/feature/test-llvm-version.make.output
  tools/build/feature/test-clang.make.output

Link: http://lkml.kernel.org/n/tip-z270blatcsc718tkv3zpw...@git.kernel.org
Signed-off-by: Jiri Olsa <jo...@kernel.org>
---
 tools/build/feature/Makefile | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index f8ad640ffe5d..dac9563b5470 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -260,11 +260,13 @@ $(OUTPUT)test-llvm.bin:
                -I$(shell $(LLVM_CONFIG) --includedir)          \
                -L$(shell $(LLVM_CONFIG) --libdir)              \
                $(shell $(LLVM_CONFIG) --libs Core BPF)         \
-               $(shell $(LLVM_CONFIG) --system-libs)
+               $(shell $(LLVM_CONFIG) --system-libs)           \
+               > $(@:.bin=.make.output) 2>&1
 
 $(OUTPUT)test-llvm-version.bin:
        $(BUILDXX) -std=gnu++11                                 \
-               -I$(shell $(LLVM_CONFIG) --includedir)
+               -I$(shell $(LLVM_CONFIG) --includedir)          \
+               > $(@:.bin=.make.output) 2>&1
 
 $(OUTPUT)test-clang.bin:
        $(BUILDXX) -std=gnu++11                                 \
@@ -274,7 +276,8 @@ $(OUTPUT)test-clang.bin:
                  -lclangFrontend -lclangEdit -lclangLex        \
                  -lclangAST -Wl,--end-group                    \
                $(shell $(LLVM_CONFIG) --libs Core option)      \
-               $(shell $(LLVM_CONFIG) --system-libs)
+               $(shell $(LLVM_CONFIG) --system-libs)           \
+               > $(@:.bin=.make.output) 2>&1
 
 -include $(OUTPUT)*.d
 
-- 
2.13.6

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