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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | /* |
| 3 | * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
| 4 | */ |
| 5 | |
| 6 | #ifndef __KERN_UTIL_H__ |
| 7 | #define __KERN_UTIL_H__ |
| 8 | |
| 9 | #include <sysdep/ptrace.h> |
| 10 | #include <sysdep/faultinfo.h> |
| 11 | |
| 12 | struct siginfo; |
| 13 | |
| 14 | extern int uml_exitcode; |
| 15 | |
| 16 | extern int kmalloc_ok; |
| 17 | |
| 18 | extern unsigned long alloc_stack(int order, int atomic); |
| 19 | extern void free_stack(unsigned long stack, int order); |
| 20 | |
| 21 | struct pt_regs; |
| 22 | extern void do_signal(struct pt_regs *regs); |
| 23 | extern void interrupt_end(void); |
| 24 | extern void relay_signal(int sig, struct siginfo *si, struct uml_pt_regs *regs, |
| 25 | void *mc); |
| 26 | |
| 27 | extern unsigned long segv(struct faultinfo fi, unsigned long ip, |
| 28 | int is_user, struct uml_pt_regs *regs, |
| 29 | void *mc); |
| 30 | extern int handle_page_fault(unsigned long address, unsigned long ip, |
| 31 | int is_write, int is_user, int *code_out); |
| 32 | |
| 33 | extern unsigned int do_IRQ(int irq, struct uml_pt_regs *regs); |
| 34 | extern void initial_thread_cb(void (*proc)(void *), void *arg); |
| 35 | |
| 36 | extern void timer_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs); |
| 37 | |
| 38 | extern void uml_pm_wake(void); |
| 39 | |
| 40 | extern int start_uml(void); |
| 41 | extern void paging_init(void); |
| 42 | |
| 43 | extern void uml_cleanup(void); |
| 44 | extern void do_uml_exitcalls(void); |
| 45 | |
| 46 | /* |
| 47 | * Are we disallowed to sleep? Used to choose between GFP_KERNEL and |
| 48 | * GFP_ATOMIC. |
| 49 | */ |
| 50 | extern int __uml_cant_sleep(void); |
| 51 | extern int get_current_pid(void); |
| 52 | extern int copy_from_user_proc(void *to, void *from, int size); |
| 53 | extern char *uml_strdup(const char *string); |
| 54 | int uml_need_resched(void); |
| 55 | |
| 56 | extern unsigned long to_irq_stack(unsigned long *mask_out); |
| 57 | extern unsigned long from_irq_stack(int nested); |
| 58 | |
| 59 | extern int singlestepping(void); |
| 60 | |
| 61 | extern void segv_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs, |
| 62 | void *mc); |
| 63 | extern void winch(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs, |
| 64 | void *mc); |
| 65 | extern void fatal_sigsegv(void) __attribute__ ((noreturn)); |
| 66 | |
| 67 | void um_idle_sleep(void); |
| 68 | |
| 69 | void kasan_map_memory(void *start, size_t len); |
| 70 | |
| 71 | #endif |
| 72 |
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