From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/include/asm/traps.h | 52 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 arch/arm/include/asm/traps.h (limited to 'arch/arm/include/asm/traps.h') diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h new file mode 100644 index 00000000..f90756dc --- /dev/null +++ b/arch/arm/include/asm/traps.h @@ -0,0 +1,52 @@ +#ifndef _ASMARM_TRAP_H +#define _ASMARM_TRAP_H + +#include + +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 -- cgit v1.2.3