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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _ASMARM_TRAP_H
- #define _ASMARM_TRAP_H
- #include <linux/linkage.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);
- 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;
- }
- extern void early_trap_init(void *);
- extern void dump_backtrace_entry(unsigned long where, unsigned long from,
- unsigned long frame, const char *loglvl);
- extern void ptrace_break(struct pt_regs *regs);
- extern void *vectors_page;
- asmlinkage void dump_backtrace_stm(u32 *stack, u32 instruction, const char *loglvl);
- asmlinkage void do_undefinstr(struct pt_regs *regs);
- asmlinkage void handle_fiq_as_nmi(struct pt_regs *regs);
- asmlinkage void bad_mode(struct pt_regs *regs, int reason);
- asmlinkage int arm_syscall(int no, struct pt_regs *regs);
- asmlinkage void baddataabort(int code, unsigned long instr, struct pt_regs *regs);
- asmlinkage void __div0(void);
- asmlinkage void handle_bad_stack(struct pt_regs *regs);
- #endif
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