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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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
12struct siginfo;
13
14extern int uml_exitcode;
15
16extern int kmalloc_ok;
17
18#define UML_ROUND_UP(addr) \
19 ((((unsigned long) addr) + PAGE_SIZE - 1) & PAGE_MASK)
20
21extern unsigned long alloc_stack(int order, int atomic);
22extern void free_stack(unsigned long stack, int order);
23
24struct pt_regs;
25extern void do_signal(struct pt_regs *regs);
26extern void interrupt_end(void);
27extern void relay_signal(int sig, struct siginfo *si, struct uml_pt_regs *regs,
28 void *mc);
29
30extern unsigned long segv(struct faultinfo fi, unsigned long ip,
31 int is_user, struct uml_pt_regs *regs,
32 void *mc);
33extern int handle_page_fault(unsigned long address, unsigned long ip,
34 int is_write, int is_user, int *code_out);
35
36extern unsigned int do_IRQ(int irq, struct uml_pt_regs *regs);
37extern void initial_thread_cb(void (*proc)(void *), void *arg);
38
39extern void timer_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs);
40
41extern void uml_pm_wake(void);
42
43extern int start_uml(void);
44extern void paging_init(void);
45extern int parse_iomem(char *str, int *add);
46
47extern void uml_cleanup(void);
48extern void do_uml_exitcalls(void);
49
50/*
51 * Are we disallowed to sleep? Used to choose between GFP_KERNEL and
52 * GFP_ATOMIC.
53 */
54extern int __uml_cant_sleep(void);
55extern int get_current_pid(void);
56extern int copy_from_user_proc(void *to, void *from, int size);
57extern char *uml_strdup(const char *string);
58
59extern unsigned long to_irq_stack(unsigned long *mask_out);
60extern unsigned long from_irq_stack(int nested);
61
62extern int singlestepping(void);
63
64extern void segv_handler(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs,
65 void *mc);
66extern void winch(int sig, struct siginfo *unused_si, struct uml_pt_regs *regs,
67 void *mc);
68extern void fatal_sigsegv(void) __attribute__ ((noreturn));
69
70void um_idle_sleep(void);
71
72void kasan_map_memory(void *start, size_t len);
73
74#endif