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csky: Fixup wrong pt_regs size

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The bug is from commit 2054f4af19 ("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>
This commit is contained in:
Guo Ren 2019-01-24 22:16:31 +08:00
parent 62eebea655
commit 9216cd7231
1 changed files with 2 additions and 1 deletions
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3
arch/csky/kernel/ptrace.c
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@ -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,