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 8/8] perf callchain: Support aarch64 cross-platform
Date: Fri, 6 May 2016 08:59:14 +0000 [thread overview]
Message-ID: <1462525154-125656-9-git-send-email-hekuang@huawei.com> (raw)
In-Reply-To: <1462525154-125656-1-git-send-email-hekuang@huawei.com>
Support aarch64 cross platform callchain unwind.
Signed-off-by: He Kuang <hekuang@huawei.com>
---
.../perf/arch/arm64/include/libunwind/libunwind-arch.h | 18 ++++++++++++++++++
tools/perf/arch/arm64/util/unwind-libunwind.c | 5 ++++-
tools/perf/config/Makefile | 12 ++++++++++++
tools/perf/util/Build | 4 ++++
tools/perf/util/thread.c | 12 ++++++++++++
tools/perf/util/unwind.h | 3 +++
6 files changed, 53 insertions(+), 1 deletion(-)
create mode 100644 tools/perf/arch/arm64/include/libunwind/libunwind-arch.h
diff --git a/tools/perf/arch/arm64/include/libunwind/libunwind-arch.h b/tools/perf/arch/arm64/include/libunwind/libunwind-arch.h
new file mode 100644
index 0000000..7bc8a00
--- /dev/null
+++ b/tools/perf/arch/arm64/include/libunwind/libunwind-arch.h
@@ -0,0 +1,18 @@
+#ifndef _LIBUNWIND_ARCH_H
+#define _LIBUNWIND_ARCH_H
+
+#include <libunwind-aarch64.h>
+#include <../perf_regs.h>
+#include <../../../../../../arch/arm64/include/uapi/asm/perf_regs.h>
+
+#define LIBUNWIND_AARCH64
+int libunwind__aarch64_reg_id(int regnum);
+
+#include <../../../arm64/util/unwind-libunwind.c>
+
+#define LIBUNWIND__ARCH_REG_ID libunwind__aarch64_reg_id
+
+#define UNWT_PREFIX UNW_PASTE(UNW_PASTE(_U, aarch64), _)
+#define UNWT_OBJ(fn) UNW_PASTE(UNWT_PREFIX, fn)
+
+#endif /* _LIBUNWIND_ARCH_H */
diff --git a/tools/perf/arch/arm64/util/unwind-libunwind.c b/tools/perf/arch/arm64/util/unwind-libunwind.c
index a87afa9..5b557a5 100644
--- a/tools/perf/arch/arm64/util/unwind-libunwind.c
+++ b/tools/perf/arch/arm64/util/unwind-libunwind.c
@@ -1,11 +1,14 @@
#include <errno.h>
-#include <libunwind.h>
#include "perf_regs.h"
#include "../../util/unwind.h"
#include "../../util/debug.h"
+#ifndef LIBUNWIND_AARCH64
int libunwind__arch_reg_id(int regnum)
+#else
+int libunwind__aarch64_reg_id(int regnum)
+#endif
{
switch (regnum) {
case UNW_AARCH64_X0:
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 16f14b1..c1bfc5e 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -353,6 +353,18 @@ ifndef NO_LIBUNWIND
have_libunwind = 1
endif
+ ifeq ($(feature-libunwind-aarch64), 1)
+ $(call detected,CONFIG_LIBUNWIND_AARCH64)
+ CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
+ LDFLAGS += -lunwind -lunwind-aarch64
+ have_libunwind = 1
+ $(call feature_check,libunwind-debug-frame-aarch64)
+ ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
+ msg := $(warning No debug_frame support found in libunwind-aarch64);
+ CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
+ endif
+ endif
+
ifneq ($(feature-libunwind), 1)
msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
NO_LOCAL_LIBUNWIND := 1
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 2dd3939..10e42ad 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -102,10 +102,14 @@ libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
libperf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o
libperf-$(CONFIG_LIBUNWIND) += unwind-libunwind_common.o
libperf-$(CONFIG_LIBUNWIND_X86) += unwind-libunwind_x86_32.o
+libperf-$(CONFIG_LIBUNWIND_AARCH64) += unwind-libunwind_arm64.o
$(OUTPUT)util/unwind-libunwind_x86_32.o: util/unwind-libunwind.c arch/x86/util/unwind-libunwind.c
$(QUIET_CC)$(CC) $(CFLAGS) -DARCH_UNWIND_LIBUNWIND -Iarch/x86/include/libunwind -c -o $@ util/unwind-libunwind.c
+$(OUTPUT)util/unwind-libunwind_arm64.o: util/unwind-libunwind.c arch/arm64/util/unwind-libunwind.c
+ $(QUIET_CC)$(CC) $(CFLAGS) -DARCH_UNWIND_LIBUNWIND -Iarch/arm64/include/libunwind -c -o $@ util/unwind-libunwind.c
+
libperf-$(CONFIG_LIBBABELTRACE) += data-convert-bt.o
libperf-y += scripting-engines/
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 2b93856..ba3e597 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -221,6 +221,18 @@ void thread__insert_map(struct thread *thread, struct map *map)
goto err;
#endif
}
+ } else if (!strcmp(arch, "aarch64") || !strncmp(arch, "arm", 3)) {
+ pr_debug("Thread map is ARM, 64bit is %d, dso=%s\n",
+ is_64_bit, map->dso->name);
+ if (is_64_bit) {
+#ifdef HAVE_LIBUNWIND_AARCH64_SUPPORT
+ register_unwind_libunwind_ops(
+ &_Uaarch64_unwind_libunwind_ops, thread);
+#else
+ register_null_unwind_libunwind_ops(thread);
+ goto err;
+#endif
+ }
} else {
register_local_unwind_libunwind_ops(thread);
}
diff --git a/tools/perf/util/unwind.h b/tools/perf/util/unwind.h
index 98d40bd..d215717 100644
--- a/tools/perf/util/unwind.h
+++ b/tools/perf/util/unwind.h
@@ -59,6 +59,9 @@ static inline void unwind__finish_access(struct thread *thread __maybe_unused) {
#ifdef HAVE_LIBUNWIND_X86_SUPPORT
extern struct unwind_libunwind_ops _Ux86_unwind_libunwind_ops;
#endif
+#ifdef HAVE_LIBUNWIND_AARCH64_SUPPORT
+extern struct unwind_libunwind_ops _Uaarch64_unwind_libunwind_ops;
+#endif
#else
static inline int
--
1.8.5.2
next prev parent reply other threads:[~2016-05-06 9:06 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-06 8:59 [PATCH 0/8] Add support for remote unwind He Kuang
2016-05-06 8:59 ` [PATCH 1/8] perf tools: Omit DWARF judgement when recording dwarf callchain He Kuang
2016-05-06 11:47 ` Arnaldo Carvalho de Melo
2016-05-07 18:03 ` Jiri Olsa
2016-05-09 16:16 ` Arnaldo Carvalho de Melo
2016-05-10 1:44 ` Hekuang
2016-05-10 20:30 ` [tip:perf/core] perf callchain: Recording 'dwarf' callchains do not need DWARF unwinding support tip-bot for He Kuang
2016-05-06 8:59 ` [PATCH 2/8] perf script: Add options for custom vdso name He Kuang
2016-05-06 11:49 ` Arnaldo Carvalho de Melo
2016-05-07 18:14 ` Jiri Olsa
2016-05-06 8:59 ` [PATCH 3/8] perf build: Add build-test for libunwind cross-platforms support He Kuang
2016-05-07 18:20 ` Jiri Olsa
2016-05-06 8:59 ` [PATCH 4/8] perf build: Add build-test for debug-frame on arm/arm64 He Kuang
2016-05-07 18:24 ` Jiri Olsa
2016-05-06 8:59 ` [PATCH 5/8] perf tools: Promote proper messages for cross-platform unwind He Kuang
2016-05-07 18:41 ` Jiri Olsa
2016-05-07 18:42 ` Jiri Olsa
2016-05-06 8:59 ` [PATCH 6/8] perf callchain: Add support " He Kuang
2016-05-06 11:56 ` Arnaldo Carvalho de Melo
2016-05-06 8:59 ` [PATCH 7/8] perf callchain: Support x86 target platform He Kuang
2016-05-06 8:59 ` He Kuang [this message]
2016-05-06 11:58 ` [PATCH 0/8] Add support for remote unwind Arnaldo Carvalho de Melo
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