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gerrit-public.fairphone.software / kernel / msm / 47c886b3123a335f0622136e021e7691d60d742c / . / arch / um / include / kern_util.h
blob: 8f4e46d677ab08cb4305b85cc384a9e173d36bc0 [file] [log] [blame]
Gennady Sharapovea2ba7d2006-01-08 01:01:31 -0800[diff] [blame]1/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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"
Bodo Stroesserc5784552005-05-05 16:15:31 -0700[diff] [blame]11#include "sysdep/faultinfo.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]12
Gennady Sharapovea2ba7d2006-01-08 01:01:31 -0800[diff] [blame]13typedef void (*kern_hndl)(int, union uml_pt_regs *);
14
15struct 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
24extern struct kern_handlers handlinfo_kern;
25
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]26extern int ncpus;
27extern char *linux_prog;
28extern char *gdb_init;
29extern int kmalloc_ok;
30extern int timer_irq_inited;
31extern int jail;
32extern int nsyscalls;
33
34extern struct task_struct *idle_threads[NR_CPUS];
35
36#define UML_ROUND_DOWN(addr) ((void *)(((unsigned long) addr) & PAGE_MASK))
37#define UML_ROUND_UP(addr) \
38 UML_ROUND_DOWN(((unsigned long) addr) + PAGE_SIZE - 1)
39
40extern int kernel_fork(unsigned long flags, int (*fn)(void *), void * arg);
41extern unsigned long stack_sp(unsigned long page);
42extern int kernel_thread_proc(void *data);
43extern void syscall_segv(int sig);
44extern int current_pid(void);
45extern unsigned long alloc_stack(int order, int atomic);
46extern int do_signal(void);
47extern int is_stack_fault(unsigned long sp);
Bodo Stroesserc5784552005-05-05 16:15:31 -0700[diff] [blame]48extern unsigned long segv(struct faultinfo fi, unsigned long ip,
49 int is_user, void *sc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]50extern int handle_page_fault(unsigned long address, unsigned long ip,
51 int is_write, int is_user, int *code_out);
52extern void syscall_ready(void);
53extern void set_tracing(void *t, int tracing);
54extern int is_tracing(void *task);
55extern int segv_syscall(void);
56extern void kern_finish_exec(void *task, int new_pid, unsigned long stack);
57extern int page_size(void);
58extern unsigned long page_mask(void);
59extern int need_finish_fork(void);
60extern void free_stack(unsigned long stack, int order);
61extern void add_input_request(int op, void (*proc)(int), void *arg);
62extern char *current_cmd(void);
63extern void timer_handler(int sig, union uml_pt_regs *regs);
64extern int set_signals(int enable);
65extern void force_sigbus(void);
66extern int pid_to_processor_id(int pid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]67extern void deliver_signals(void *t);
68extern int next_syscall_index(int max);
69extern int next_trap_index(int max);
70extern void default_idle(void);
71extern void finish_fork(void);
72extern void paging_init(void);
73extern void init_flush_vm(void);
74extern void *syscall_sp(void *t);
75extern void syscall_trace(union uml_pt_regs *regs, int entryexit);
76extern int hz(void);
77extern void uml_idle_timer(void);
78extern unsigned int do_IRQ(int irq, union uml_pt_regs *regs);
79extern int external_pid(void *t);
80extern void boot_timer_handler(int sig);
81extern void interrupt_end(void);
82extern void initial_thread_cb(void (*proc)(void *), void *arg);
83extern int debugger_signal(int status, int pid);
84extern void debugger_parent_signal(int status, int pid);
85extern void child_signal(int pid, int status);
86extern int init_ptrace_proxy(int idle_pid, int startup, int stop);
87extern int init_parent_proxy(int pid);
88extern int singlestepping(void *t);
89extern void check_stack_overflow(void *ptr);
90extern void relay_signal(int sig, union uml_pt_regs *regs);
91extern void not_implemented(void);
92extern int user_context(unsigned long sp);
93extern void timer_irq(union uml_pt_regs *regs);
94extern void unprotect_stack(unsigned long stack);
95extern void do_uml_exitcalls(void);
96extern int attach_debugger(int idle_pid, int pid, int stop);
Bodo Stroesserc5784552005-05-05 16:15:31 -0700[diff] [blame]97extern void bad_segv(struct faultinfo fi, unsigned long ip);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]98extern int config_gdb(char *str);
99extern int remove_gdb(void);
100extern char *uml_strdup(char *string);
101extern void unprotect_kernel_mem(void);
102extern void protect_kernel_mem(void);
103extern void uml_cleanup(void);
104extern void set_current(void *t);
105extern void lock_signalled_task(void *t);
106extern void IPI_handler(int cpu);
107extern int jail_setup(char *line, int *add);
108extern void *get_init_task(void);
109extern int clear_user_proc(void *buf, int size);
110extern int copy_to_user_proc(void *to, void *from, int size);
111extern int copy_from_user_proc(void *to, void *from, int size);
112extern int strlen_user_proc(char *str);
113extern void bus_handler(int sig, union uml_pt_regs *regs);
114extern void winch(int sig, union uml_pt_regs *regs);
115extern long execute_syscall(void *r);
116extern int smp_sigio_handler(void);
117extern void *get_current(void);
118extern struct task_struct *get_task(int pid, int require);
119extern void machine_halt(void);
120extern int is_syscall(unsigned long addr);
121extern void arch_switch(void);
122extern void free_irq(unsigned int, void *);
123extern int um_in_interrupt(void);
124extern int cpu(void);
Gennady Sharapovea2ba7d2006-01-08 01:01:31 -0800[diff] [blame]125extern void segv_handler(int sig, union uml_pt_regs *regs);
126extern void sigio_handler(int sig, union uml_pt_regs *regs);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]127
128#endif
129
130/*
131 * Overrides for Emacs so that we follow Linus's tabbing style.
132 * Emacs will notice this stuff at the end of the file and automatically
133 * adjust the settings for this buffer only. This must remain at the end
134 * of the file.
135 * ---------------------------------------------------------------------------
136 * Local variables:
137 * c-file-style: "linux"
138 * End:
139 */