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 3/3] perf unwind: Fix wrongly used regs for aarch64 unwind
Date: Wed, 8 Jun 2016 10:15:38 +0000 [thread overview]
Message-ID: <1465380938-64371-4-git-send-email-hekuang@huawei.com> (raw)
In-Reply-To: <1465380938-64371-1-git-send-email-hekuang@huawei.com>
By default, "unwind-libunwind-local.c" gets SP/IP register number
according to the host platform, for remote unwind, we should use
register number for target platform. Fix this by define
LIBUNWIND_ARCH_REG_SP/IP in the wrapper file of aarch64 platform.
Signed-off-by: He Kuang <hekuang@huawei.com>
---
tools/perf/util/libunwind/arm64.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/perf/util/libunwind/arm64.c b/tools/perf/util/libunwind/arm64.c
index 4fb5395..6559bc5 100644
--- a/tools/perf/util/libunwind/arm64.c
+++ b/tools/perf/util/libunwind/arm64.c
@@ -13,7 +13,12 @@
#define REMOTE_UNWIND_LIBUNWIND
+/* Define arch specific functions & regs for libunwind, should be
+ * defined before including "unwind.h"
+ */
#define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arm64_reg_id(regnum)
+#define LIBUNWIND__ARCH_REG_IP PERF_REG_ARM64_PC
+#define LIBUNWIND__ARCH_REG_SP PERF_REG_ARM64_SP
#include "unwind.h"
#include "debug.h"
--
1.8.5.2
next prev parent reply other threads:[~2016-06-08 10:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-08 10:15 [PATCH 0/3] Fixes on remote unwind He Kuang
2016-06-08 10:15 ` [PATCH 1/3] perf unwind: Change macro names of perf register He Kuang
2016-06-08 10:15 ` [PATCH 2/3] perf unwind: Fix wrongly used regs for x86_32 unwind He Kuang
2016-06-08 10:15 ` He Kuang [this message]
2016-06-12 10:03 ` [PATCH 0/3] Fixes on remote unwind Hekuang
2016-06-21 1:59 ` Hekuang
2016-06-21 7:33 ` Jiri Olsa
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