Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASMARM_TRAP_H
3#define _ASMARM_TRAP_H
4
5#include <linux/linkage.h>
6#include <linux/list.h>
7
8struct pt_regs;
9struct task_struct;
10
11struct undef_hook {
12 struct list_head node;
13 u32 instr_mask;
14 u32 instr_val;
15 u32 cpsr_mask;
16 u32 cpsr_val;
17 int (*fn)(struct pt_regs *regs, unsigned int instr);
18};
19
20void register_undef_hook(struct undef_hook *hook);
21void unregister_undef_hook(struct undef_hook *hook);
22
23static inline int __in_irqentry_text(unsigned long ptr)
24{
25 extern char __irqentry_text_start[];
26 extern char __irqentry_text_end[];
27
28 return ptr >= (unsigned long)&__irqentry_text_start &&
29 ptr < (unsigned long)&__irqentry_text_end;
30}
31
32extern void early_trap_init(void *);
33extern void dump_backtrace_entry(unsigned long where, unsigned long from,
34 unsigned long frame, const char *loglvl);
35extern void ptrace_break(struct pt_regs *regs);
36
37extern void *vectors_page;
38
39asmlinkage void dump_backtrace_stm(u32 *stack, u32 instruction, const char *loglvl);
40asmlinkage void do_undefinstr(struct pt_regs *regs);
41asmlinkage void handle_fiq_as_nmi(struct pt_regs *regs);
42asmlinkage void bad_mode(struct pt_regs *regs, int reason);
43asmlinkage int arm_syscall(int no, struct pt_regs *regs);
44asmlinkage void baddataabort(int code, unsigned long instr, struct pt_regs *regs);
45asmlinkage void __div0(void);
46asmlinkage void handle_bad_stack(struct pt_regs *regs);
47
48#endif