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@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1428671219-29341-4-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c
index 8157d3900bc2f4f7b9b0036fdfd7d7dca546dd33..da8cb987b97312f6b37b5a967ce70fc5e75e0205 100644 (file)
--- 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;