Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1428479

[PATCH 3/5] perf unwind: Fix wrongly used regs for aarch64 unwind

Show all headers | View raw

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>
Acked-by: Jiri Olsa <jolsa@kernel.org>
---
 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

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH 0/5] Fixes on perf unwind He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200
  [PATCH 2/5] perf unwind: Fix wrongly used regs for x86_32 unwind He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200
  [PATCH 4/5] perf tools: Let python use correct gcc for build_ext He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200
  [PATCH 1/5] perf unwind: Change macro names of perf register He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200
  [PATCH 3/5] perf unwind: Fix wrongly used regs for aarch64 unwind He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200
  Re: [PATCH 0/5] Fixes on perf unwind Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-06-23 15:40 +0200

csiph-web