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/* * Copyright 2004-2008 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ #ifndef _BFIN_PTRACE_H #define _BFIN_PTRACE_H #include <uapi/asm/ptrace.h> #ifndef __ASSEMBLY__ /* user_mode returns true if only one bit is set in IPEND, other than the master interrupt enable. */ #define user_mode(regs) (!(((regs)->ipend & ~0x10) & (((regs)->ipend & ~0x10) - 1))) #define arch_has_single_step() (1) /* common code demands this function */ #define ptrace_disable(child) user_disable_single_step(child) #define current_user_stack_pointer() rdusp() extern int is_user_addr_valid(struct task_struct *child, unsigned long start, unsigned long len); /* * Get the address of the live pt_regs for the specified task. * These are saved onto the top kernel stack when the process * is not running. * * Note: if a user thread is execve'd from kernel space, the * kernel stack will not be empty on entry to the kernel, so * ptracing these tasks will fail. */ #define task_pt_regs(task) \ (struct pt_regs *) \ ((unsigned long)task_stack_page(task) + \ (THREAD_SIZE - sizeof(struct pt_regs))) #include <asm-generic/ptrace.h> #endif /* __ASSEMBLY__ */ #endif /* _BFIN_PTRACE_H */