| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _ASMARM_TRAP_H |
| 2 | #define _ASMARM_TRAP_H |
| 3 | |
| 4 | #include <linux/list.h> |
| 5 | |
| Mikael Pettersson | e7d59db | 2011-07-22 16:47:26 +0100 | [diff] [blame^] | 6 | struct pt_regs; |
| 7 | struct task_struct; |
| 8 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | struct undef_hook { |
| 10 | struct list_head node; |
| 11 | u32 instr_mask; |
| 12 | u32 instr_val; |
| 13 | u32 cpsr_mask; |
| 14 | u32 cpsr_val; |
| 15 | int (*fn)(struct pt_regs *regs, unsigned int instr); |
| 16 | }; |
| 17 | |
| 18 | void register_undef_hook(struct undef_hook *hook); |
| 19 | void unregister_undef_hook(struct undef_hook *hook); |
| 20 | |
| Rabin Vincent | 61b5cb1 | 2010-10-07 20:51:58 +0530 | [diff] [blame] | 21 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER |
| 22 | static inline int __in_irqentry_text(unsigned long ptr) |
| 23 | { |
| 24 | extern char __irqentry_text_start[]; |
| 25 | extern char __irqentry_text_end[]; |
| 26 | |
| 27 | return ptr >= (unsigned long)&__irqentry_text_start && |
| 28 | ptr < (unsigned long)&__irqentry_text_end; |
| 29 | } |
| 30 | #else |
| 31 | static inline int __in_irqentry_text(unsigned long ptr) |
| 32 | { |
| 33 | return 0; |
| 34 | } |
| 35 | #endif |
| 36 | |
| Nicolas Pitre | 785d3cd | 2007-12-03 15:27:56 -0500 | [diff] [blame] | 37 | static inline int in_exception_text(unsigned long ptr) |
| 38 | { |
| 39 | extern char __exception_text_start[]; |
| 40 | extern char __exception_text_end[]; |
| Rabin Vincent | 61b5cb1 | 2010-10-07 20:51:58 +0530 | [diff] [blame] | 41 | int in; |
| Nicolas Pitre | 785d3cd | 2007-12-03 15:27:56 -0500 | [diff] [blame] | 42 | |
| Rabin Vincent | 61b5cb1 | 2010-10-07 20:51:58 +0530 | [diff] [blame] | 43 | in = ptr >= (unsigned long)&__exception_text_start && |
| 44 | ptr < (unsigned long)&__exception_text_end; |
| 45 | |
| 46 | return in ? : __in_irqentry_text(ptr); |
| Nicolas Pitre | 785d3cd | 2007-12-03 15:27:56 -0500 | [diff] [blame] | 47 | } |
| 48 | |
| Jason Wessel | 5cbad0e | 2008-02-20 13:33:40 -0600 | [diff] [blame] | 49 | extern void __init early_trap_init(void); |
| Catalin Marinas | 67a94c2 | 2009-02-11 13:06:53 +0100 | [diff] [blame] | 50 | extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame); |
| Will Deacon | 425fc47 | 2011-02-14 14:31:09 +0100 | [diff] [blame] | 51 | extern void ptrace_break(struct task_struct *tsk, struct pt_regs *regs); |
| Jason Wessel | 5cbad0e | 2008-02-20 13:33:40 -0600 | [diff] [blame] | 52 | |
| Catalin Marinas | 247055a | 2010-09-13 16:03:21 +0100 | [diff] [blame] | 53 | extern void *vectors_page; |
| 54 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | #endif |