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Date: Wed, 27 Nov 2013 17:16:34 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Jean Pihet <jean.pihet@...aro.org>,
Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
Jiri Olsa <jolsa@...hat.com>,
Will Deacon <will.deacon@....com>,
linaro-kernel@...ts.linaro.org, patches@...aro.org,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 34/34] perf tools unwinding: Use the per-feature check flags
From: Jean Pihet <jean.pihet@...aro.org>
Use the per-feature check flags for the unwinding feature in order to
correctly compile the libunwind and libunwind-debug-frame feature
checks.
Tested on ARMv7 and ARMv8 with 'make DEBUG=1 LIBUNWIND_DIR=/usr/local -C
tools/perf'
Signed-off-by: Jean Pihet <jean.pihet@...aro.org>
Acked-by: Ingo Molnar <mingo@...nel.org>
Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Will Deacon <will.deacon@....com>
Cc: linaro-kernel@...ts.linaro.org
Cc: patches@...aro.org
Link: http://lkml.kernel.org/r/1385045539-24537-3-git-send-email-jean.pihet@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/config/Makefile | 38 +++++++++++++++++--------------
tools/perf/config/feature-checks/Makefile | 6 ++---
2 files changed, 24 insertions(+), 20 deletions(-)
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index c55149538d92..80ea6d823908 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -36,6 +36,26 @@ ifeq ($(ARCH),arm)
LIBUNWIND_LIBS = -lunwind -lunwind-arm
endif
+ifeq ($(LIBUNWIND_LIBS),)
+ NO_LIBUNWIND := 1
+else
+ #
+ # For linking with debug library, run like:
+ #
+ # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
+ #
+ ifdef LIBUNWIND_DIR
+ LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
+ LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
+ endif
+ LIBUNWIND_LDFLAGS += $(LIBUNWIND_LIBS)
+
+ FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
+ FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS)
+ FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
+ FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS)
+endif
+
ifeq ($(NO_PERF_REGS),0)
CFLAGS += -DHAVE_PERF_REGS_SUPPORT
endif
@@ -102,7 +122,7 @@ endif
feature_check = $(eval $(feature_check_code))
define feature_check_code
- feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" LIBUNWIND_LIBS="$(LIBUNWIND_LIBS)" -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
+ feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
endef
feature_set = $(eval $(feature_set_code))
@@ -310,21 +330,7 @@ ifndef NO_LIBELF
endif # NO_DWARF
endif # NO_LIBELF
-ifeq ($(LIBUNWIND_LIBS),)
- NO_LIBUNWIND := 1
-endif
-
ifndef NO_LIBUNWIND
- #
- # For linking with debug library, run like:
- #
- # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
- #
- ifdef LIBUNWIND_DIR
- LIBUNWIND_CFLAGS := -I$(LIBUNWIND_DIR)/include
- LIBUNWIND_LDFLAGS := -L$(LIBUNWIND_DIR)/lib
- endif
-
ifneq ($(feature-libunwind), 1)
msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1);
NO_LIBUNWIND := 1
@@ -340,9 +346,7 @@ ifndef NO_LIBUNWIND
CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
endif
endif
-endif
-ifndef NO_LIBUNWIND
CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
EXTLIBS += $(LIBUNWIND_LIBS)
CFLAGS += $(LIBUNWIND_CFLAGS)
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 87e790017c69..8dffb628dac8 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -38,7 +38,7 @@ BUILD = $(CC) $(CFLAGS) $(LDFLAGS) -o $(OUTPUT)$@ $@.c
###############################
test-all:
- $(BUILD) -Werror -fstack-protector -fstack-protector-all -O2 -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma $(LIBUNWIND_LIBS) -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl
+ $(BUILD) -Werror -fstack-protector -fstack-protector-all -O2 -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl
test-hello:
$(BUILD)
@@ -74,10 +74,10 @@ test-libnuma:
$(BUILD) -lnuma
test-libunwind:
- $(BUILD) $(LIBUNWIND_LIBS) -lelf
+ $(BUILD) -lelf
test-libunwind-debug-frame:
- $(BUILD) $(LIBUNWIND_LIBS) -lelf
+ $(BUILD) -lelf
test-libaudit:
$(BUILD) -laudit
--
1.8.1.4
--
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