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Message-Id: <20241017001354.56973-5-irogers@google.com>
Date: Wed, 16 Oct 2024 17:13:47 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, John Garry <john.g.garry@...cle.com>, 
	Will Deacon <will@...nel.org>, James Clark <james.clark@...aro.org>, 
	Mike Leach <mike.leach@...aro.org>, Leo Yan <leo.yan@...ux.dev>, Guo Ren <guoren@...nel.org>, 
	Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, 
	Albert Ou <aou@...s.berkeley.edu>, Nick Terrell <terrelln@...com>, 
	"Masami Hiramatsu (Google)" <mhiramat@...nel.org>, Changbin Du <changbin.du@...wei.com>, 
	Guilherme Amadio <amadio@...too.org>, Yang Jihong <yangjihong@...edance.com>, 
	Aditya Gupta <adityag@...ux.ibm.com>, Athira Rajeev <atrajeev@...ux.vnet.ibm.com>, 
	Masahiro Yamada <masahiroy@...nel.org>, Bibo Mao <maobibo@...ngson.cn>, 
	Huacai Chen <chenhuacai@...nel.org>, Kajol Jain <kjain@...ux.ibm.com>, 
	Atish Patra <atishp@...osinc.com>, Shenlin Liang <liangshenlin@...incomputing.com>, 
	Anup Patel <anup@...infault.org>, Oliver Upton <oliver.upton@...ux.dev>, 
	"Steinar H. Gunderson" <sesse@...gle.com>, "Dr. David Alan Gilbert" <linux@...blig.org>, 
	Chen Pei <cp0613@...ux.alibaba.com>, Dima Kogan <dima@...retsauce.net>, 
	Przemek Kitszel <przemyslaw.kitszel@...el.com>, "David S. Miller" <davem@...emloft.net>, 
	Alexander Lobakin <aleksander.lobakin@...el.com>, linux-kernel@...r.kernel.org, 
	linux-perf-users@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-csky@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: [PATCH v3 04/11] perf build: Rename test-dwarf to test-libdw

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

Signed-off-by: Ian Rogers <irogers@...gle.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 1658596188bf..7a1c028ce40b 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).0.0
   LIBDW_VERSION_1 := $(word 1, $(subst ., ,$(LIBDW_VERSION)))
@@ -179,21 +179,21 @@ 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
 
   # Must put -ldl after -lebl for dependency
   DWARFLIBS += -ldl
 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 dd5468b8b5de..f1e24c4ae123 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -162,8 +162,8 @@ ifeq ($(findstring -static,${LDFLAGS}),-static)
   # Must put -ldl after -lebl for dependency
   DWARFLIBS += -ldl
 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)
@@ -473,7 +473,7 @@ 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
-- 
2.47.0.105.g07ac214952-goog


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