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authorMike Frysinger <vapier.adi@gmail.com>2008-11-18 17:48:22 +0800
committerBryan Wu <cooloney@kernel.org>2008-11-18 17:48:22 +0800
commit8a86176c4aee493bf8eb1dce8190b2f63d70d130 (patch)
treed3cb7aed2febad7d2c419e29ef7f04aa1b3978a3 /arch/blackfin/kernel
parent3c1fbd5184f9c3c52c0a392fae0efb0b0d99a079 (diff)
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>
Diffstat (limited to 'arch/blackfin/kernel')
-rw-r--r--arch/blackfin/kernel/ptrace.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index 4de44f387dd..d5e6be2d5ed 100644
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -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