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Blackfin arch: overlay thread.usp over PT_USP 

overlay thread.usp over PT_USP when getting the whole regfile to
match PT_USP behavior

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger 2008-11-18 17:48:22 +08:00 committed by Bryan Wu
parent 3c1fbd5184
commit 8a86176c4a
1 changed files with 5 additions and 3 deletions
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8
arch/blackfin/kernel/ptrace.c
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@ -80,10 +80,12 @@ static inline struct pt_regs *get_user_regs(struct task_struct *task)
/*
* Get all user integer registers.
*/
static inline int ptrace_getregs(struct task_struct *tsk, void __user * uregs)
static inline int ptrace_getregs(struct task_struct *tsk, void __user *uregs)
{
struct pt_regs *regs = get_user_regs(tsk);
return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0;
struct pt_regs regs;
memcpy(&regs, get_user_regs(tsk), sizeof(regs));
regs.usp = tsk->thread.usp;
return copy_to_user(uregs, &regs, sizeof(struct pt_regs)) ? -EFAULT : 0;
}
/* Mapping from PT_xxx to the stack offset at which the register is