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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 2/5] perf unwind: Fix wrongly used regs for x86_32 unwind
Date: Wed, 22 Jun 2016 06:57:03 +0000	[thread overview]
Message-ID: <1466578626-92406-3-git-send-email-hekuang@huawei.com> (raw)
In-Reply-To: <1466578626-92406-1-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 x86_32 platform.

Signed-off-by: He Kuang <hekuang@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/util/libunwind/x86_32.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/util/libunwind/x86_32.c b/tools/perf/util/libunwind/x86_32.c
index d98c17e..957ffff 100644
--- a/tools/perf/util/libunwind/x86_32.c
+++ b/tools/perf/util/libunwind/x86_32.c
@@ -12,7 +12,13 @@
  */
 
 #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__x86_reg_id(regnum)
+#define LIBUNWIND__ARCH_REG_IP PERF_REG_X86_IP
+#define LIBUNWIND__ARCH_REG_SP PERF_REG_X86_SP
 
 #include "unwind.h"
 #include "debug.h"
-- 
1.8.5.2

  parent reply	other threads:[~2016-06-22  6:58 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-22  6:57 [PATCH 0/5] Fixes on perf unwind He Kuang
2016-06-22  6:57 ` [PATCH 1/5] perf unwind: Change macro names of perf register He Kuang
2016-06-26 10:56   ` [tip:perf/core] " tip-bot for He Kuang
2016-06-22  6:57 ` He Kuang [this message]
2016-06-26 10:56   ` [tip:perf/core] perf unwind: Fix wrongly used regs for x86_32 unwind tip-bot for He Kuang
2016-06-22  6:57 ` [PATCH 3/5] perf unwind: Fix wrongly used regs for aarch64 unwind He Kuang
2016-06-26 10:57   ` [tip:perf/core] " tip-bot for He Kuang
2016-06-22  6:57 ` [PATCH 4/5] perf tools: Let python use correct gcc for build_ext He Kuang
2016-06-26 10:54   ` [tip:perf/core] " tip-bot for He Kuang
2016-06-22  6:57 ` [PATCH 5/5] perf tools: Fix NULL pointer deference when vdso not found He Kuang
2016-06-23  2:02   ` Wangnan (F)
2016-06-23  3:03     ` Hekuang
2016-06-23 12:07     ` Arnaldo Carvalho de Melo
2016-06-23 13:28       ` Arnaldo Carvalho de Melo
2016-06-26 10:55   ` [tip:perf/core] perf tools: Find right DSO taking into account if binary is 32 or 64-bit tip-bot for He Kuang
2016-06-23 13:30 ` [PATCH 0/5] Fixes on perf unwind Arnaldo Carvalho de Melo
  -- strict thread matches above, loose matches on Subject: below --
2016-05-12  8:43 [PATCH v3 0/7] Add support for remote unwind He Kuang
2016-05-12  8:43 ` [PATCH v3 1/7] perf tools: Set vdso name to vdso[64,32] depending on platform He Kuang
2016-05-12 10:06   ` Adrian Hunter
2016-05-13  8:51     ` [PATCH v3 1/7 UPDATE] perf tools: Find vdso with the consider of cross-platform He Kuang
2016-05-16 13:32       ` Arnaldo Carvalho de Melo
2016-05-17  7:34         ` Adrian Hunter
2016-05-17  7:33       ` Adrian Hunter
2016-05-17  9:04         ` [PATCH v3 1/7 UPDATE2] " He Kuang
2016-05-17  9:17           ` Adrian Hunter
2016-05-17 12:46             ` Arnaldo Carvalho de Melo
2016-06-15 13:34           ` Arnaldo Carvalho de Melo
2016-06-16  0:22             ` Hekuang
2016-06-16 13:00             ` Adrian Hunter
2016-06-16 16:33               ` Arnaldo Carvalho de Melo
2016-05-17  9:05         ` [PATCH v3 1/7 UPDATE] " Hekuang
2016-05-13  8:53     ` [PATCH v3 1/7] perf tools: Set vdso name to vdso[64,32] depending on platform Hekuang
2016-05-12  8:43 ` [PATCH v3 2/7] perf tools: Store vdso buildid unconditionally He Kuang
2016-05-12 13:09   ` Arnaldo Carvalho de Melo
2016-05-20  6:43   ` [tip:perf/urgent] perf symbols: " tip-bot for He Kuang
2016-05-12  8:43 ` [PATCH v3 3/7] perf tools: Remove the logical that skip buildid cache if symfs is given He Kuang
2016-05-12 13:09   ` Arnaldo Carvalho de Melo
2016-05-12 20:23     ` David Ahern
2016-05-12 20:33       ` Arnaldo Carvalho de Melo
2016-05-13  7:19       ` Hekuang
2016-05-13 14:27         ` David Ahern
2016-05-13 18:01           ` Arnaldo Carvalho de Melo
2016-05-14  8:19             ` [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of buildid dsos under symfs He Kuang
2016-05-14 14:43               ` David Ahern
2016-05-16  1:30                 ` Hekuang
2016-05-16  2:50                   ` David Ahern
2016-05-16  6:40                     ` Hekuang
2016-05-18  1:47                     ` Hekuang
2016-05-18  1:51                       ` David Ahern
2016-05-18  2:48                         ` Hekuang
2016-05-18  3:04                           ` David Ahern
2016-05-12  8:43 ` [PATCH v3 4/7] perf tools: Promote proper messages for cross-platform unwind He Kuang
2016-05-12  8:43 ` [PATCH v3 5/7] perf callchain: Add support " He Kuang
2016-05-12  8:43 ` [PATCH v3 6/7] perf callchain: Support x86 target platform He Kuang
2016-05-12  8:43 ` [PATCH v3 7/7] perf callchain: Support aarch64 cross-platform He Kuang

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