linux-kernel - [tip:x86/asm] perf/x86/64: Report regs_user-> ax too in get_regs

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Message-ID: <tip-3b75232d55680ca166dffa274d0587d5faf0a016@git.kernel.org>
Date:	Sun, 12 Apr 2015 10:26:54 -0700
From:	tip-bot for Denys Vlasenko <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	dvlasenk@...hat.com, tglx@...utronix.de, acme@...nel.org,
	a.p.zijlstra@...llo.nl, hpa@...or.com, paulus@...ba.org,
	jolsa@...hat.com, mingo@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip:x86/asm] perf/x86/64: Report regs_user->
 ax too in get_regs_user()

Commit-ID:  3b75232d55680ca166dffa274d0587d5faf0a016
Gitweb:     http://git.kernel.org/tip/3b75232d55680ca166dffa274d0587d5faf0a016
Author:     Denys Vlasenko <dvlasenk@...hat.com>
AuthorDate: Fri, 10 Apr 2015 15:06:59 +0200
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Sat, 11 Apr 2015 13:08:53 +0200

perf/x86/64: Report regs_user->ax too in get_regs_user()

I don't see why we report e.g. orix_ax, which is not always
meaningful, but don't report ax, which is meaningful.

Signed-off-by: Denys Vlasenko <dvlasenk@...hat.com>
Cc: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1428671219-29341-4-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/kernel/perf_regs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c
index 8157d39..da8cb98 100644
--- a/arch/x86/kernel/perf_regs.c
+++ b/arch/x86/kernel/perf_regs.c
@@ -135,6 +135,7 @@ void perf_get_regs_user(struct perf_regs *regs_user,
 	 * On 32-bit entry points, they are saved too except r8..r11.
 	 */
 	regs_user_copy->ip = user_regs->ip;
+	regs_user_copy->ax = user_regs->ax;
 	regs_user_copy->cx = user_regs->cx;
 	regs_user_copy->dx = user_regs->dx;
 	regs_user_copy->si = user_regs->si;
--
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