Extend perf_sample_regs_intr() to support the updates needed for
perf_arch_reg structure and perf_arch_regs_mask. Also add code to
init the arch_regs_mask to zero incase of regs_user in
perf_sample_regs_user(). Ideally this should be done in perf_sample_data_init,
but due to commit 2565711fb7d7 ("perf: Improve the perf_sample_data struct
layout")
moving it to this function.
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
Cc: Stephane Eranian <eran...@gmail.com>
Cc: Russell King <li...@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.mari...@arm.com>
Cc: Will Deacon <will.dea...@arm.com>
Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Cc: Michael Ellerman <m...@ellerman.id.au>
Cc: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <ma...@linux.vnet.ibm.com>
---
kernel/events/core.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 2f6e6a16b117..8cf540275c34 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5398,6 +5398,9 @@ static void perf_sample_regs_user(struct perf_regs
*regs_user,
regs_user->abi = PERF_SAMPLE_REGS_ABI_NONE;
regs_user->regs = NULL;
}
+
+ /* Init arch_regs_mask to zero */
+ regs_user->arch_regs_mask = 0;
}
static void perf_sample_regs_intr(struct perf_regs *regs_intr,
@@ -5405,6 +5408,8 @@ static void perf_sample_regs_intr(struct perf_regs
*regs_intr,
{
regs_intr->regs = regs;
regs_intr->abi = perf_reg_abi(current);
+ regs_intr->arch_regs_mask = perf_get_arch_regs_mask();
+ regs_intr->arch_regs = perf_get_arch_reg();
}
--
2.7.4
