From: guoren@kernel.org
To: arnd@arndb.de, robh+dt@kernel.org, marc.zyngier@arm.com
Cc: linux-kernel@vger.kernel.org, guoren@kernel.org,
linux-arch@vger.kernel.org, Guo Ren <ren_guo@c-sky.com>
Subject: [PATCH 07/10] csky: Fixup wrong pt_regs size
Date: Tue, 29 Jan 2019 20:24:26 +0800 [thread overview]
Message-ID: <1548764669-16656-7-git-send-email-guoren@kernel.org> (raw)
In-Reply-To: <1548764669-16656-1-git-send-email-guoren@kernel.org>
From: Guo Ren <ren_guo@c-sky.com>
The bug is from commit 2054f4af1957 ("csky: bugfix gdb coredump error.")
We change the ELF_NGREG to ELF_NGREG - 2 to fit gdb&gcc define, but forgot
modify ptrace regset.
Now coredump use ELF_NRGEG to parse GPRs and ptrace use pt_regs_regset, so
there are two different reg_sets for userspace.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
---
arch/csky/kernel/ptrace.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/csky/kernel/ptrace.c b/arch/csky/kernel/ptrace.c
index 57f1afe..f2f12ff 100644
--- a/arch/csky/kernel/ptrace.c
+++ b/arch/csky/kernel/ptrace.c
@@ -8,6 +8,7 @@
#include <linux/ptrace.h>
#include <linux/regset.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
#include <linux/signal.h>
#include <linux/smp.h>
#include <linux/uaccess.h>
@@ -159,7 +160,7 @@ static int fpr_set(struct task_struct *target,
static const struct user_regset csky_regsets[] = {
[REGSET_GPR] = {
.core_note_type = NT_PRSTATUS,
- .n = ELF_NGREG,
+ .n = sizeof(struct pt_regs) / sizeof(u32),
.size = sizeof(u32),
.align = sizeof(u32),
.get = &gpr_get,
--
2.7.4
next prev parent reply other threads:[~2019-01-29 12:25 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-29 12:24 [PATCH 01/10] irqchip/csky: Support csky,dh7k SOC intc driver guoren
2019-01-29 12:24 ` [PATCH 02/10] dt-bindings: csky,apb-intc: Add dh7k SOC support guoren
2019-01-29 12:24 ` [PATCH 03/10] csky: Fixup _PAGE_GLOBAL bit for 610 tlb entry guoren
2019-01-29 12:24 ` [PATCH 04/10] irqchip/csky: Optimize remove unnecessary loop irq handle guoren
2019-01-29 12:24 ` [PATCH 05/10] irqchip/irq-csky-mpintc: Add triger type and priority guoren
2019-01-29 12:24 ` [PATCH 06/10] dt-bindings: interrupt-controller: Update csky mpintc guoren
2019-01-29 12:24 ` guoren [this message]
2019-01-29 12:24 ` [PATCH 08/10] csky: coding convention: Use task_stack_page guoren
2019-01-29 12:24 ` [PATCH 09/10] dt-bindings: csky,apb-intc: Add vector irq mode guoren
2019-01-29 12:24 ` [PATCH 10/10] irqchip/csky: Add support-vector-irq for apb-intc guoren
2019-02-14 14:03 ` [PATCH 01/10] irqchip/csky: Support csky,dh7k SOC intc driver Marc Zyngier
2019-02-15 1:21 ` Guo Ren
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