Be more intention revealing that the dwarf test is actually testing
for libdw support.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/build/Makefile.feature                     |  6 +++---
 tools/build/feature/Makefile                     | 16 ++++++++--------
 tools/build/feature/test-all.c                   |  6 +++---
 .../build/feature/{test-dwarf.c => test-libdw.c} |  0
 tools/perf/Makefile.config                       |  6 +++---
 5 files changed, 17 insertions(+), 17 deletions(-)
 rename tools/build/feature/{test-dwarf.c => test-libdw.c} (100%)

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index ffd117135094..6025810cc346 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -30,7 +30,7 @@ endef
 #
 FEATURE_TESTS_BASIC :=                  \
         backtrace                       \
-        dwarf                           \
+        libdw                           \
         dwarf_getlocations              \
         dwarf_getcfi                    \
         eventfd                         \
@@ -120,7 +120,7 @@ ifeq ($(FEATURE_TESTS),all)
 endif
 
 FEATURE_DISPLAY ?=              \
-         dwarf                  \
+         libdw                  \
          dwarf_getlocations     \
          glibc                  \
          libbfd                 \
@@ -233,7 +233,7 @@ endef
 
 #
 # generates feature value assignment for name, like:
-#   $(call feature_assign,dwarf) == feature-dwarf=1
+#   $(call feature_assign,libdw) == feature-libdw=1
 #
 feature_assign = feature-$(1)=$(feature-$(1))
 
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 5938cf799dc6..bece326ac93b 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -5,7 +5,7 @@ FILES=                                          \
          test-all.bin                           \
          test-backtrace.bin                     \
          test-bionic.bin                        \
-         test-dwarf.bin                         \
+         test-libdw.bin                         \
          test-dwarf_getlocations.bin            \
          test-dwarf_getcfi.bin                  \
          test-eventfd.bin                       \
@@ -168,9 +168,9 @@ $(OUTPUT)test-libopencsd.bin:
 	$(BUILD) # -lopencsd_c_api -lopencsd provided by
 		 # $(FEATURE_CHECK_LDFLAGS-libopencsd)
 
-DWARFLIBS := -ldw
+DWLIBS := -ldw
 ifeq ($(findstring -static,${LDFLAGS}),-static)
-  DWARFLIBS += -lelf -lz -llzma -lbz2 -lzstd
+  DWLIBS += -lelf -lz -llzma -lbz2 -lzstd
 
   LIBDW_VERSION := $(shell $(PKG_CONFIG) --modversion libdw)
   LIBDW_VERSION_1 := $(word 1, $(subst ., ,$(LIBDW_VERSION)))
@@ -179,18 +179,18 @@ ifeq ($(findstring -static,${LDFLAGS}),-static)
   # Elfutils merged libebl.a into libdw.a starting from version 0.177,
   # Link libebl.a only if libdw is older than this version.
   ifeq ($(shell test $(LIBDW_VERSION_2) -lt 177; echo $$?),0)
-    DWARFLIBS += -lebl
+    DWLIBS += -lebl
   endif
 endif
 
-$(OUTPUT)test-dwarf.bin:
-	$(BUILD) $(DWARFLIBS)
+$(OUTPUT)test-libdw.bin:
+	$(BUILD) $(DWLIBS)
 
 $(OUTPUT)test-dwarf_getlocations.bin:
-	$(BUILD) $(DWARFLIBS)
+	$(BUILD) $(DWLIBS)
 
 $(OUTPUT)test-dwarf_getcfi.bin:
-	$(BUILD) $(DWARFLIBS)
+	$(BUILD) $(DWLIBS)
 
 $(OUTPUT)test-libelf-getphdrnum.bin:
 	$(BUILD) -lelf
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index 6f4bf386a3b5..d60e072b6eca 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -38,8 +38,8 @@
 # include "test-glibc.c"
 #undef main
 
-#define main main_test_dwarf
-# include "test-dwarf.c"
+#define main main_test_libdw
+# include "test-libdw.c"
 #undef main
 
 #define main main_test_dwarf_getlocations
@@ -187,7 +187,7 @@ int main(int argc, char *argv[])
 	main_test_get_current_dir_name();
 	main_test_gettid();
 	main_test_glibc();
-	main_test_dwarf();
+	main_test_libdw();
 	main_test_dwarf_getlocations();
 	main_test_eventfd();
 	main_test_libelf_getphdrnum();
diff --git a/tools/build/feature/test-dwarf.c b/tools/build/feature/test-libdw.c
similarity index 100%
rename from tools/build/feature/test-dwarf.c
rename to tools/build/feature/test-libdw.c
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 182e14e39cd5..c8e157cc0c5e 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -159,8 +159,8 @@ ifeq ($(findstring -static,${LDFLAGS}),-static)
     DWARFLIBS += -lebl
   endif
 endif
-FEATURE_CHECK_CFLAGS-dwarf := $(LIBDW_CFLAGS)
-FEATURE_CHECK_LDFLAGS-dwarf := $(LIBDW_LDFLAGS) $(DWARFLIBS)
+FEATURE_CHECK_CFLAGS-libdw := $(LIBDW_CFLAGS)
+FEATURE_CHECK_LDFLAGS-libdw := $(LIBDW_LDFLAGS) $(DWARFLIBS)
 FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
 FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
 FEATURE_CHECK_CFLAGS-dwarf_getlocations := $(LIBDW_CFLAGS)
@@ -470,7 +470,7 @@ else
         $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR)
       endif
     endif
-    ifneq ($(feature-dwarf), 1)
+    ifneq ($(feature-libdw), 1)
       ifndef NO_LIBDW
         $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev)
         NO_LIBDW := 1
-- 
2.47.0.rc0.187.ge670bccf7e-goog