Viewing file:  traps.h (1.25 KB) -rw-r--r--
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#ifndef _ASMARM_TRAP_H
#define _ASMARM_TRAP_H
#include <linux/list.h>
struct pt_regs;
struct task_struct;
struct undef_hook {
struct list_head node;
u32 instr_mask;
u32 instr_val;
u32 cpsr_mask;
u32 cpsr_val;
int (*fn)(struct pt_regs *regs, unsigned int instr);
};
void register_undef_hook(struct undef_hook *hook);
void unregister_undef_hook(struct undef_hook *hook);
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
static inline int __in_irqentry_text(unsigned long ptr)
{
extern char __irqentry_text_start[];
extern char __irqentry_text_end[];
return ptr >= (unsigned long)&__irqentry_text_start &&
ptr < (unsigned long)&__irqentry_text_end;
}
#else
static inline int __in_irqentry_text(unsigned long ptr)
{
return 0;
}
#endif
static inline int in_exception_text(unsigned long ptr)
{
extern char __exception_text_start[];
extern char __exception_text_end[];
int in;
in = ptr >= (unsigned long)&__exception_text_start &&
ptr < (unsigned long)&__exception_text_end;
return in ? : __in_irqentry_text(ptr);
}
extern void __init early_trap_init(void *);
extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame);
extern void ptrace_break(struct task_struct *tsk, struct pt_regs *regs);
extern void *vectors_page;
#endif
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