1 /* 2 * Based on arch/arm/include/asm/system_misc.h 3 * 4 * Copyright (C) 2012 ARM Ltd. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 */ 18 #ifndef __ASM_SYSTEM_MISC_H 19 #define __ASM_SYSTEM_MISC_H 20 21 #ifndef __ASSEMBLY__ 22 23 #include <linux/compiler.h> 24 #include <linux/linkage.h> 25 #include <linux/irqflags.h> 26 #include <linux/signal.h> 27 #include <linux/ratelimit.h> 28 #include <linux/reboot.h> 29 30 struct pt_regs; 31 32 void die(const char *msg, struct pt_regs *regs, int err); 33 34 struct siginfo; 35 void arm64_notify_die(const char *str, struct pt_regs *regs, 36 struct siginfo *info, int err); 37 38 void hook_debug_fault_code(int nr, int (*fn)(unsigned long, unsigned int, 39 struct pt_regs *), 40 int sig, int code, const char *name); 41 42 struct mm_struct; 43 extern void show_pte(struct mm_struct *mm, unsigned long addr); 44 extern void __show_regs(struct pt_regs *); 45 46 extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd); 47 48 #define show_unhandled_signals_ratelimited() \ 49 ({ \ 50 static DEFINE_RATELIMIT_STATE(_rs, \ 51 DEFAULT_RATELIMIT_INTERVAL, \ 52 DEFAULT_RATELIMIT_BURST); \ 53 bool __show_ratelimited = false; \ 54 if (show_unhandled_signals && __ratelimit(&_rs)) \ 55 __show_ratelimited = true; \ 56 __show_ratelimited; \ 57 }) 58 59 #define UDBG_UNDEFINED (1 << 0) 60 #define UDBG_SYSCALL (1 << 1) 61 #define UDBG_BADABORT (1 << 2) 62 #define UDBG_SEGV (1 << 3) 63 #define UDBG_BUS (1 << 4) 64 65 #endif /* __ASSEMBLY__ */ 66 67 #endif /* __ASM_SYSTEM_MISC_H */ 68