[PATCH 20/23] perf: consolidate CONFIG_LIBELF checks in Makefile

From: David Ahern
Date: Mon Apr 01 2013 - 23:56:05 EST


Signed-off-by: David Ahern <dsahern@xxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
---
tools/perf/Makefile | 34 ++++++++++++++++------------------
1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index e76fa2f..a3a62611 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -530,6 +530,12 @@ PERFLIBS = $(LIB_FILE) $(LIBTRACEEVENT)
ifneq ($(MAKECMDGOALS),clean)
ifneq ($(MAKECMDGOALS),tags)

+-include arch/$(ARCH)/Makefile
+
+ifneq ($(OUTPUT),)
+ BASIC_CFLAGS += -I$(OUTPUT)
+endif
+
# We choose to avoid "if .. else if .. else .. endif endif"
# because maintaining the nesting to match is a pain. If
# we had "elif" things would have been much nicer...
@@ -565,25 +571,7 @@ ifdef CONFIG_LIBELF
$(error Please install new elfutils-devel/libdw-dev or disable CONFIG_DWARF);
endif
endif
-else
- ifdef CONFIG_DWARF
- $(error CONFIG_DWARF depends on LIBELF)
- endif
- ifdef CONFIG_DEMANGLE
- $(error CONFIG_DEMANGLE depends on LIBELF)
- endif
- ifdef CONFIG_LIBUNWIND
- $(error CONFIG_LIBUNWIND depends on LIBELF)
- endif
-endif

--include arch/$(ARCH)/Makefile
-
-ifneq ($(OUTPUT),)
- BASIC_CFLAGS += -I$(OUTPUT)
-endif
-
-ifdef CONFIG_LIBELF
FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
BASIC_CFLAGS += -DLIBELF_MMAP
@@ -602,6 +590,16 @@ ifdef CONFIG_LIBELF
endif

else
+ ifdef CONFIG_DWARF
+ $(error CONFIG_DWARF depends on LIBELF)
+ endif
+ ifdef CONFIG_DEMANGLE
+ $(error CONFIG_DEMANGLE depends on LIBELF)
+ endif
+ ifdef CONFIG_LIBUNWIND
+ $(error CONFIG_LIBUNWIND depends on LIBELF)
+ endif
+
EXTLIBS := $(filter-out -lelf,$(EXTLIBS))

# Remove ELF/DWARF dependent codes
--
1.7.10.1

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