diff options
Diffstat (limited to 'arch/x86_64/kernel')
| -rw-r--r-- | arch/x86_64/kernel/process.c | 3 | ||||
| -rw-r--r-- | arch/x86_64/kernel/ptrace.c | 10 | ||||
| -rw-r--r-- | arch/x86_64/kernel/traps.c | 2 |
3 files changed, 4 insertions, 11 deletions
diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index 2ea4acd47fc..68df519c83e 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -822,8 +822,7 @@ int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs) { struct pt_regs *pp, ptregs; - pp = (struct pt_regs *)(tsk->thread.rsp0); - --pp; + pp = task_pt_regs(tsk); ptregs = *pp; ptregs.cs &= 0xffff; diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c index 86248bc9303..53205622351 100644 --- a/arch/x86_64/kernel/ptrace.c +++ b/arch/x86_64/kernel/ptrace.c @@ -67,12 +67,6 @@ static inline unsigned long get_stack_long(struct task_struct *task, int offset) return (*((unsigned long *)stack)); } -static inline struct pt_regs *get_child_regs(struct task_struct *task) -{ - struct pt_regs *regs = (void *)task->thread.rsp0; - return regs - 1; -} - /* * this routine will put a word on the processes privileged stack. * the offset is how far from the base addr as stored in the TSS. @@ -170,7 +164,7 @@ static int is_at_popf(struct task_struct *child, struct pt_regs *regs) static void set_singlestep(struct task_struct *child) { - struct pt_regs *regs = get_child_regs(child); + struct pt_regs *regs = task_pt_regs(child); /* * Always set TIF_SINGLESTEP - this guarantees that @@ -208,7 +202,7 @@ static void clear_singlestep(struct task_struct *child) /* But touch TF only if it was set by us.. */ if (child->ptrace & PT_DTRACE) { - struct pt_regs *regs = get_child_regs(child); + struct pt_regs *regs = task_pt_regs(child); regs->eflags &= ~TRAP_FLAG; child->ptrace &= ~PT_DTRACE; } diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index d8f90b48aec..8bb0aeda78b 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -666,7 +666,7 @@ asmlinkage struct pt_regs *sync_regs(struct pt_regs *eregs) ; /* Exception from user space */ else if (user_mode(eregs)) - regs = ((struct pt_regs *)current->thread.rsp0) - 1; + regs = task_pt_regs(current); /* Exception from kernel and interrupts are enabled. Move to kernel process stack. */ else if (eregs->eflags & X86_EFLAGS_IF) |