kernel/ptrace/ptrace-noadv.c

12 	struct pt_regs *regs = task->thread.regs;
21 	struct pt_regs *regs = task->thread.regs;
30 	struct pt_regs *regs = task->thread.regs;
68 	dabr_fake = ((child->thread.hw_brk[0].address & (~HW_BRK_TYPE_DABR)) |
69 		     (child->thread.hw_brk[0].type & HW_BRK_TYPE_DABR));
82 	struct thread_struct *thread = &task->thread;
121 	bp = thread->ptrace_bps[0];
125 			thread->ptrace_bps[0] = NULL;
142 		thread->ptrace_bps[0] = bp;
143 		thread->hw_brk[0] = hw_brk;
154 	thread->ptrace_bps[0] = bp = register_user_hw_breakpoint(&attr,
157 		thread->ptrace_bps[0] = NULL;
165 	task->thread.hw_brk[0] = hw_brk;
170 static int find_empty_ptrace_bp(struct thread_struct *thread)
175 		if (!thread->ptrace_bps[i])
182 static int find_empty_hw_brk(struct thread_struct *thread)
187 		if (!thread->hw_brk[i].address)
198 	struct thread_struct *thread = &child->thread;
233 	i = find_empty_ptrace_bp(thread);
244 	thread->ptrace_bps[i] = bp;
246 		thread->ptrace_bps[i] = NULL;
256 	i = find_empty_hw_brk(&child->thread);
263 	child->thread.hw_brk[i] = brk;
272 	struct thread_struct *thread = &child->thread;
279 	bp = thread->ptrace_bps[data - 1];
282 		thread->ptrace_bps[data - 1] = NULL;
288 	if (!(child->thread.hw_brk[data - 1].flags & HW_BRK_FLAG_DISABLED) &&
289 	    child->thread.hw_brk[data - 1].address == 0)
292 	child->thread.hw_brk[data - 1].address = 0;
293 	child->thread.hw_brk[data - 1].type = 0;
294 	child->thread.hw_brk[data - 1].flags = 0;