[PATCH 05/25] perf tools: Move libelf check config into config/Makefile

Jiri Olsa
2013-05-24T12:36:15Z

Moving libelf check config into config/Makefile.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: David Ahern <dsahern@gmail.com>
---
tools/perf/Makefile | 46 ---------------------------------------------
tools/perf/config/Makefile | 47 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 47 insertions(+), 46 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index aa6f933..a174c68 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -473,45 +473,6 @@ ifneq ($(MAKECMDGOALS),tags)
# because maintaining the nesting to match is a pain. If
# we had "elif" things would have been much nicer...

-ifdef NO_LIBELF
- NO_DWARF := 1
- NO_DEMANGLE := 1
- NO_LIBUNWIND := 1
-else
-FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
-ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
- FLAGS_GLIBC=$(ALL_CFLAGS) $(ALL_LDFLAGS)
- ifeq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC),glibc),y)
- LIBC_SUPPORT := 1
- endif
- ifeq ($(BIONIC),1)
- LIBC_SUPPORT := 1
- endif
- ifeq ($(LIBC_SUPPORT),1)
- msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
-
- NO_LIBELF := 1
- NO_DWARF := 1
- NO_DEMANGLE := 1
- else
- msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
- endif
-else
- # for linking with debug library, run like:
- # make DEBUG=1 LIBDW_DIR=/opt/libdw/
- ifdef LIBDW_DIR
- LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
- LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
- endif
-
- FLAGS_DWARF=$(ALL_CFLAGS) $(LIBDW_CFLAGS) -ldw -lelf $(LIBDW_LDFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
- ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF),libdw),y)
- msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
- NO_DWARF := 1
- endif # Dwarf support
-endif # SOURCE_LIBELF
-endif # NO_LIBELF
-
# There's only x86 (both 32 and 64) support for CFI unwind so far
ifneq ($(ARCH),x86)
NO_LIBUNWIND := 1
@@ -553,13 +514,6 @@ BUILTIN_OBJS := $(filter-out $(OUTPUT)builtin-probe.o,$(BUILTIN_OBJS))
LIB_OBJS += $(OUTPUT)util/symbol-minimal.o

else # NO_LIBELF
-BASIC_CFLAGS += -DLIBELF_SUPPORT
-
-FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
-ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
- BASIC_CFLAGS += -DLIBELF_MMAP
-endif
-
ifndef NO_DWARF
ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 9ce522a..ef09d6c 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -108,3 +108,50 @@ ifeq ($(call try-cc,$(SOURCE_BIONIC),$(CFLAGS),bionic),y)
EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
BASIC_CFLAGS += -I.
endif
+
+ifdef NO_LIBELF
+ NO_DWARF := 1
+ NO_DEMANGLE := 1
+ NO_LIBUNWIND := 1
+else
+FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
+ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
+ FLAGS_GLIBC=$(ALL_CFLAGS) $(ALL_LDFLAGS)
+ ifeq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC),glibc),y)
+ LIBC_SUPPORT := 1
+ endif
+ ifeq ($(BIONIC),1)
+ LIBC_SUPPORT := 1
+ endif
+ ifeq ($(LIBC_SUPPORT),1)
+ msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
+
+ NO_LIBELF := 1
+ NO_DWARF := 1
+ NO_DEMANGLE := 1
+ else
+ msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
+ endif
+else
+ # for linking with debug library, run like:
+ # make DEBUG=1 LIBDW_DIR=/opt/libdw/
+ ifdef LIBDW_DIR
+ LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
+ LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
+ endif
+
+ FLAGS_DWARF=$(ALL_CFLAGS) $(LIBDW_CFLAGS) -ldw -lelf $(LIBDW_LDFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
+ ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF),libdw),y)
+ msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
+ NO_DWARF := 1
+ endif # Dwarf support
+endif # SOURCE_LIBELF
+endif # NO_LIBELF
+
+ifndef NO_LIBELF
+BASIC_CFLAGS += -DLIBELF_SUPPORT
+FLAGS_LIBELF=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
+ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
+ BASIC_CFLAGS += -DLIBELF_MMAP
+endif
+endif # NO_LIBELF
--
1.7.11.7