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Subject[PATCH v3 2/3] arch/tile: implement arch_ptrace using user_regset on tile
Date
This patch changes arch_ptrace on tile so that it uses user_regset
to implement the PTRACE_GETREGS and PTRACE_SETREGS operations.

Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
---
arch/tile/kernel/ptrace.c | 15 ++++++---------
1 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/arch/tile/kernel/ptrace.c b/arch/tile/kernel/ptrace.c
index 882e381..9835312 100644
--- a/arch/tile/kernel/ptrace.c
+++ b/arch/tile/kernel/ptrace.c
@@ -193,18 +193,15 @@ long arch_ptrace(struct task_struct *child, long request,
break;

case PTRACE_GETREGS: /* Get all registers from the child. */
- if (copy_to_user(datap, getregs(child, &copyregs),
- sizeof(struct pt_regs)) == 0) {
- ret = 0;
- }
+ ret = copy_regset_to_user(child, &tile_user_regset_view,
+ REGSET_GPR, 0,
+ sizeof(struct pt_regs), datap);
break;

case PTRACE_SETREGS: /* Set all registers in the child. */
- if (copy_from_user(&copyregs, datap,
- sizeof(struct pt_regs)) == 0) {
- putregs(child, &copyregs);
- ret = 0;
- }
+ ret = copy_regset_from_user(child, &tile_user_regset_view,
+ REGSET_GPR, 0,
+ sizeof(struct pt_regs), datap);
break;

case PTRACE_GETFPREGS: /* Get the child FPU state. */
--
1.7.1


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