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Commit | Line | Data |
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ea2ba7dc | 1 | /* |
1da177e4 LT |
2 | * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) |
3 | * Licensed under the GPL | |
4 | */ | |
5 | ||
6 | #ifndef __KERN_UTIL_H__ | |
7 | #define __KERN_UTIL_H__ | |
8 | ||
9 | #include "linux/threads.h" | |
10 | #include "sysdep/ptrace.h" | |
c578455a | 11 | #include "sysdep/faultinfo.h" |
1da177e4 | 12 | |
ea2ba7dc GS |
13 | typedef void (*kern_hndl)(int, union uml_pt_regs *); |
14 | ||
15 | struct kern_handlers { | |
16 | kern_hndl relay_signal; | |
17 | kern_hndl winch; | |
18 | kern_hndl bus_handler; | |
19 | kern_hndl page_fault; | |
20 | kern_hndl sigio_handler; | |
21 | kern_hndl timer_handler; | |
22 | }; | |
23 | ||
5e7672ec | 24 | extern const struct kern_handlers handlinfo_kern; |
ea2ba7dc | 25 | |
1da177e4 LT |
26 | extern int ncpus; |
27 | extern char *linux_prog; | |
28 | extern char *gdb_init; | |
29 | extern int kmalloc_ok; | |
1da177e4 LT |
30 | extern int jail; |
31 | extern int nsyscalls; | |
32 | ||
1da177e4 LT |
33 | #define UML_ROUND_DOWN(addr) ((void *)(((unsigned long) addr) & PAGE_MASK)) |
34 | #define UML_ROUND_UP(addr) \ | |
35 | UML_ROUND_DOWN(((unsigned long) addr) + PAGE_SIZE - 1) | |
36 | ||
37 | extern int kernel_fork(unsigned long flags, int (*fn)(void *), void * arg); | |
38 | extern unsigned long stack_sp(unsigned long page); | |
39 | extern int kernel_thread_proc(void *data); | |
40 | extern void syscall_segv(int sig); | |
41 | extern int current_pid(void); | |
42 | extern unsigned long alloc_stack(int order, int atomic); | |
43 | extern int do_signal(void); | |
44 | extern int is_stack_fault(unsigned long sp); | |
c578455a BS |
45 | extern unsigned long segv(struct faultinfo fi, unsigned long ip, |
46 | int is_user, void *sc); | |
1da177e4 LT |
47 | extern int handle_page_fault(unsigned long address, unsigned long ip, |
48 | int is_write, int is_user, int *code_out); | |
49 | extern void syscall_ready(void); | |
50 | extern void set_tracing(void *t, int tracing); | |
51 | extern int is_tracing(void *task); | |
52 | extern int segv_syscall(void); | |
53 | extern void kern_finish_exec(void *task, int new_pid, unsigned long stack); | |
54 | extern int page_size(void); | |
55 | extern unsigned long page_mask(void); | |
56 | extern int need_finish_fork(void); | |
57 | extern void free_stack(unsigned long stack, int order); | |
58 | extern void add_input_request(int op, void (*proc)(int), void *arg); | |
59 | extern char *current_cmd(void); | |
60 | extern void timer_handler(int sig, union uml_pt_regs *regs); | |
61 | extern int set_signals(int enable); | |
62 | extern void force_sigbus(void); | |
63 | extern int pid_to_processor_id(int pid); | |
1da177e4 LT |
64 | extern void deliver_signals(void *t); |
65 | extern int next_syscall_index(int max); | |
66 | extern int next_trap_index(int max); | |
67 | extern void default_idle(void); | |
68 | extern void finish_fork(void); | |
69 | extern void paging_init(void); | |
70 | extern void init_flush_vm(void); | |
71 | extern void *syscall_sp(void *t); | |
72 | extern void syscall_trace(union uml_pt_regs *regs, int entryexit); | |
73 | extern int hz(void); | |
1da177e4 LT |
74 | extern unsigned int do_IRQ(int irq, union uml_pt_regs *regs); |
75 | extern int external_pid(void *t); | |
1da177e4 LT |
76 | extern void interrupt_end(void); |
77 | extern void initial_thread_cb(void (*proc)(void *), void *arg); | |
78 | extern int debugger_signal(int status, int pid); | |
79 | extern void debugger_parent_signal(int status, int pid); | |
80 | extern void child_signal(int pid, int status); | |
81 | extern int init_ptrace_proxy(int idle_pid, int startup, int stop); | |
82 | extern int init_parent_proxy(int pid); | |
83 | extern int singlestepping(void *t); | |
84 | extern void check_stack_overflow(void *ptr); | |
85 | extern void relay_signal(int sig, union uml_pt_regs *regs); | |
86 | extern void not_implemented(void); | |
87 | extern int user_context(unsigned long sp); | |
88 | extern void timer_irq(union uml_pt_regs *regs); | |
89 | extern void unprotect_stack(unsigned long stack); | |
90 | extern void do_uml_exitcalls(void); | |
91 | extern int attach_debugger(int idle_pid, int pid, int stop); | |
c578455a | 92 | extern void bad_segv(struct faultinfo fi, unsigned long ip); |
1da177e4 LT |
93 | extern int config_gdb(char *str); |
94 | extern int remove_gdb(void); | |
95 | extern char *uml_strdup(char *string); | |
96 | extern void unprotect_kernel_mem(void); | |
97 | extern void protect_kernel_mem(void); | |
98 | extern void uml_cleanup(void); | |
99 | extern void set_current(void *t); | |
100 | extern void lock_signalled_task(void *t); | |
101 | extern void IPI_handler(int cpu); | |
102 | extern int jail_setup(char *line, int *add); | |
103 | extern void *get_init_task(void); | |
104 | extern int clear_user_proc(void *buf, int size); | |
105 | extern int copy_to_user_proc(void *to, void *from, int size); | |
106 | extern int copy_from_user_proc(void *to, void *from, int size); | |
107 | extern int strlen_user_proc(char *str); | |
108 | extern void bus_handler(int sig, union uml_pt_regs *regs); | |
109 | extern void winch(int sig, union uml_pt_regs *regs); | |
110 | extern long execute_syscall(void *r); | |
111 | extern int smp_sigio_handler(void); | |
112 | extern void *get_current(void); | |
113 | extern struct task_struct *get_task(int pid, int require); | |
114 | extern void machine_halt(void); | |
115 | extern int is_syscall(unsigned long addr); | |
972410b0 | 116 | |
1da177e4 | 117 | extern void free_irq(unsigned int, void *); |
1da177e4 | 118 | extern int cpu(void); |
b6316293 | 119 | |
5cb38bc4 JD |
120 | extern void time_init_kern(void); |
121 | ||
b6316293 PBG |
122 | /* Are we disallowed to sleep? Used to choose between GFP_KERNEL and GFP_ATOMIC. */ |
123 | extern int __cant_sleep(void); | |
ea2ba7dc GS |
124 | extern void segv_handler(int sig, union uml_pt_regs *regs); |
125 | extern void sigio_handler(int sig, union uml_pt_regs *regs); | |
1da177e4 LT |
126 | |
127 | #endif |