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authorHe Kuang <hekuang@huawei.com>2016-06-22 08:57:04 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-06-23 15:30:31 +0200
commit3bd03c9583bfb22cb82eeb09d8445bb79d27ae78 (patch)
tree7d4d4177b2223bbd996bcaaa8af3cf72e8d8447f /tools/perf/util
parentperf unwind: Fix wrongly used regs for x86_32 unwind (diff)
downloadlinux-3bd03c9583bfb22cb82eeb09d8445bb79d27ae78.tar.xz
linux-3bd03c9583bfb22cb82eeb09d8445bb79d27ae78.zip
perf unwind: Fix wrongly used regs for aarch64 unwind
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> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1466578626-92406-4-git-send-email-hekuang@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/libunwind/arm64.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/util/libunwind/arm64.c b/tools/perf/util/libunwind/arm64.c
index 4fb5395669f8..6559bc586643 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"