mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: He Kuang <hekuang@huawei.com>
To: <peterz@infradead.org>, <mingo@redhat.com>, <acme@kernel.org>,
	<alexander.shishkin@linux.intel.com>, <jolsa@redhat.com>,
	<wangnan0@huawei.com>, <hekuang@huawei.com>,
	<jpoimboe@redhat.com>, <ak@linux.intel.com>, <eranian@google.com>,
	<namhyung@kernel.org>, <adrian.hunter@intel.com>,
	<sukadev@linux.vnet.ibm.com>, <masami.hiramatsu.pt@hitachi.com>,
	<tumanova@linux.vnet.ibm.com>, <kan.liang@intel.com>,
	<penberg@kernel.org>, <dsahern@gmail.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: [PATCH v4 3/6] perf tools: Separate local and remote unwind support detection
Date: Thu, 19 May 2016 11:47:39 +0000	[thread overview]
Message-ID: <1463658462-85131-4-git-send-email-hekuang@huawei.com> (raw)
In-Reply-To: <1463658462-85131-1-git-send-email-hekuang@huawei.com>

This patch changes original CONFIG_LIBUNWIND/NO_LIBUNWIND to
CONFIG_LOCAL_LIBUNWIND/NO_LOCAL_LIBUNWIND for retaining local unwind
features. CONFIG_LIBUNWIND stands for either local or remote or both
unwind are supported and NO_LIBUNWIND means neither local nor remote
libunwind are supported.

Signed-off-by: He Kuang <hekuang@huawei.com>
---
 tools/perf/config/Makefile | 21 ++++++++++++++++++---
 tools/perf/util/Build      |  2 +-
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index a86b864..3035dbf 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -345,16 +345,28 @@ ifeq ($(ARCH),powerpc)
 endif
 
 ifndef NO_LIBUNWIND
+  have_libunwind =
   ifeq ($(feature-libunwind-x86), 1)
-    LIBUNWIND_LIBS += -lunwind-x86
     $(call detected,CONFIG_LIBUNWIND_X86)
     CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
+    LDFLAGS += -lunwind -lunwind-x86
+    have_libunwind = 1
   endif
 
   ifneq ($(feature-libunwind), 1)
     msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
+    NO_LOCAL_LIBUNWIND := 1
+  else
+    have_libunwind = 1
+    CFLAGS += -DHAVE_LIBUNWIND_LOCAL_SUPPORT
+    $(call detected,CONFIG_LOCAL_LIBUNWIND)
+  endif
+
+  ifneq ($(have_libunwind), 1)
     NO_LIBUNWIND := 1
   endif
+else
+  NO_LOCAL_LIBUNWIND := 1
 endif
 
 ifndef NO_LIBBPF
@@ -392,7 +404,7 @@ else
   NO_DWARF_UNWIND := 1
 endif
 
-ifndef NO_LIBUNWIND
+ifndef NO_LOCAL_LIBUNWIND
   ifeq ($(ARCH),$(filter $(ARCH),arm arm64))
     $(call feature_check,libunwind-debug-frame)
     ifneq ($(feature-libunwind-debug-frame), 1)
@@ -403,12 +415,15 @@ ifndef NO_LIBUNWIND
     # non-ARM has no dwarf_find_debug_frame() function:
     CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
   endif
-  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
   EXTLIBS += $(LIBUNWIND_LIBS)
   CFLAGS  += $(LIBUNWIND_CFLAGS)
   LDFLAGS += $(LIBUNWIND_LDFLAGS)
 endif
 
+ifndef NO_LIBUNWIND
+  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
+endif
+
 ifndef NO_LIBAUDIT
   ifneq ($(feature-libaudit), 1)
     msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 25c31fb..ce69721 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -99,7 +99,7 @@ libperf-$(CONFIG_DWARF) += probe-finder.o
 libperf-$(CONFIG_DWARF) += dwarf-aux.o
 
 libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
-libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind.o
+libperf-$(CONFIG_LOCAL_LIBUNWIND)    += unwind-libunwind.o
 libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind_common.o
 
 libperf-$(CONFIG_LIBBABELTRACE) += data-convert-bt.o
-- 
1.8.5.2

  parent reply	other threads:[~2016-05-19 11:48 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-19 11:47 [PATCH v4 0/6] Add support for remote unwind He Kuang
2016-05-19 11:47 ` [PATCH v4 1/6] perf tools: Set buildid dir under symfs when --symfs is provided He Kuang
2016-05-19 14:23   ` David Ahern
2016-05-19 16:07   ` Jiri Olsa
2016-05-20 17:46   ` [tip:perf/urgent] " tip-bot for He Kuang
2016-05-19 11:47 ` [PATCH v4 2/6] perf tools: Promote proper messages for cross-platform unwind He Kuang
2016-05-19 14:50   ` Arnaldo Carvalho de Melo
2016-05-19 16:19     ` Jiri Olsa
2016-05-20  3:00       ` Hekuang
2016-05-19 16:46   ` Jiri Olsa
2016-05-19 17:15     ` Jiri Olsa
2016-05-20  2:59     ` Hekuang
2016-05-20  9:53       ` Jiri Olsa
2016-05-19 11:47 ` He Kuang [this message]
2016-05-19 11:47 ` [PATCH v4 4/6] perf callchain: Add support " He Kuang
2016-05-19 11:47 ` [PATCH v4 5/6] perf callchain: Support x86 target platform He Kuang
2016-05-19 11:47 ` [PATCH v4 6/6] perf callchain: Support aarch64 cross-platform He Kuang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1463658462-85131-4-git-send-email-hekuang@huawei.com \
    --to=hekuang@huawei.com \
    --cc=acme@kernel.org \
    --cc=adrian.hunter@intel.com \
    --cc=ak@linux.intel.com \
    --cc=alexander.shishkin@linux.intel.com \
    --cc=dsahern@gmail.com \
    --cc=eranian@google.com \
    --cc=jolsa@redhat.com \
    --cc=jpoimboe@redhat.com \
    --cc=kan.liang@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=masami.hiramatsu.pt@hitachi.com \
    --cc=mingo@redhat.com \
    --cc=namhyung@kernel.org \
    --cc=penberg@kernel.org \
    --cc=peterz@infradead.org \
    --cc=sukadev@linux.vnet.ibm.com \
    --cc=tumanova@linux.vnet.ibm.com \
    --cc=wangnan0@huawei.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®