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[PATCH -tip 2/2] perf probe: Add NO_DWARF make option
- From: Masami Hiramatsu <mhiramat at redhat dot com>
- To: Ingo Molnar <mingo at elte dot hu>, lkml<linux-kernel at vger dot kernel dot org>
- Cc: systemtap<systemtap at sources dot redhat dot com>, DLE<dle-develop at lists dot sourceforge dot net>, Masami Hiramatsu <mhiramat at redhat dot com>, Ingo Molnar <mingo at elte dot hu>, Frederic Weisbecker <fweisbec at gmail dot com>, Arnaldo Carvalho de Melo <acme at redhat dot com>, Paul Mackerras <paulus at samba dot org>, Mike Galbraith <efault at gmx dot de>, Peter Zijlstra <a dot p dot zijlstra at chello dot nl>
- Date: Wed, 17 Mar 2010 18:12:00 -0400
- Subject: [PATCH -tip 2/2] perf probe: Add NO_DWARF make option
- References: <20100317221152.23088.64591.stgit@localhost6.localdomain6>
Add NO_DWARF make option for testing build without libdw.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
tools/perf/Makefile | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index c991818..6903645 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -150,6 +150,8 @@ all::
# Define LDFLAGS=-static to build a static binary.
#
# Define EXTRA_CFLAGS=-m64 or EXTRA_CFLAGS=-m32 as appropriate for cross-builds.
+#
+# Define NO_DWARF if you do not want debug-info analysis feature at all.
PERF-VERSION-FILE: .FORCE-PERF-VERSION-FILE
@$(SHELL_PATH) util/PERF-VERSION-GEN
@@ -507,10 +509,12 @@ endif
ifneq ($(shell sh -c "(echo '\#include <dwarf.h>'; echo '\#include <libdw.h>'; echo 'int main(void) { Dwarf *dbg; dbg = dwarf_begin(0, DWARF_C_READ); return (long)dbg; }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/elfutils -ldw -lelf -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) "$(QUIET_STDERR)" && echo y"), y)
msg := $(warning No libdw.h found or old libdw.h found, disables dwarf support. Please install elfutils-devel/elfutils-dev);
else
+ifndef NO_DWARF
BASIC_CFLAGS += -I/usr/include/elfutils -DDWARF_SUPPORT
EXTLIBS += -lelf -ldw
LIB_OBJS += util/probe-finder.o
endif
+endif
ifneq ($(shell sh -c "(echo '\#include <newt.h>'; echo 'int main(void) { newtInit(); newtCls(); return newtFinished(); }') | $(CC) -x c - $(ALL_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -lnewt -o $(BITBUCKET) $(ALL_LDFLAGS) $(EXTLIBS) "$(QUIET_STDERR)" && echo y"), y)
msg := $(warning newt not found, disables TUI support. Please install newt-devel or libnewt-dev);
--
Masami Hiramatsu
e-mail: mhiramat@redhat.com