arch/um/include/user_util.h

   1 /*
   2  * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #ifndef __USER_UTIL_H__
   7 #define __USER_UTIL_H__
   8
   9 #include "sysdep/ptrace.h"
  10
  11 #define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR))
  12
  13 extern int mode_tt;
  14
  15 extern int grantpt(int __fd);
  16 extern int unlockpt(int __fd);
  17 extern char *ptsname(int __fd);
  18
  19 struct cpu_task {
  20         int pid;
  21         void *task;
  22 };
  23
  24 extern struct cpu_task cpu_tasks[];
  25
  26 struct signal_info {
  27         void (*handler)(int, union uml_pt_regs *);
  28         int is_irq;
  29 };
  30
  31 extern struct signal_info sig_info[];
  32
  33 extern unsigned long low_physmem;
  34 extern unsigned long high_physmem;
  35 extern unsigned long uml_physmem;
  36 extern unsigned long uml_reserved;
  37 extern unsigned long end_vm;
  38 extern unsigned long start_vm;
  39 extern unsigned long highmem;
  40
  41 extern char host_info[];
  42
  43 extern char saved_command_line[];
  44 extern char command_line[];
  45
  46 extern char *tempdir;
  47
  48 extern unsigned long _stext, _etext, _sdata, _edata, __bss_start, _end;
  49 extern unsigned long _unprotected_end;
  50 extern unsigned long brk_start;
  51
  52 extern int pty_output_sigio;
  53 extern int pty_close_sigio;
  54
  55 extern void stop(void);
  56 extern void stack_protections(unsigned long address);
  57 extern void task_protections(unsigned long address);
  58 extern int wait_for_stop(int pid, int sig, int cont_type, void *relay);
  59 extern void *add_signal_handler(int sig, void (*handler)(int));
  60 extern int start_fork_tramp(void *arg, unsigned long temp_stack,
  61                             int clone_flags, int (*tramp)(void *));
  62 extern int linux_main(int argc, char **argv);
  63 extern void set_cmdline(char *cmd);
  64 extern void input_cb(void (*proc)(void *), void *arg, int arg_len);
  65 extern int get_pty(void);
  66 extern void *um_kmalloc(int size);
  67 extern int switcheroo(int fd, int prot, void *from, void *to, int size);
  68 extern void setup_machinename(char *machine_out);
  69 extern void setup_hostinfo(void);
  70 extern void add_arg(char *arg);
  71 extern void init_new_thread_stack(void *sig_stack, void (*usr1_handler)(int));
  72 extern void init_new_thread_signals(int altstack);
  73 extern void do_exec(int old_pid, int new_pid);
  74 extern void tracer_panic(char *msg, ...);
  75 extern char *get_umid(int only_if_set);
  76 extern void do_longjmp(void *p, int val);
  77 extern int detach(int pid, int sig);
  78 extern int attach(int pid);
  79 extern void kill_child_dead(int pid);
  80 extern int cont(int pid);
  81 extern void check_ptrace(void);
  82 extern void check_sigio(void);
  83 extern int run_kernel_thread(int (*fn)(void *), void *arg, void **jmp_ptr);
  84 extern void write_sigio_workaround(void);
  85 extern void arch_check_bugs(void);
  86 extern int cpu_feature(char *what, char *buf, int len);
  87 extern int arch_handle_signal(int sig, union uml_pt_regs *regs);
  88 extern int arch_fixup(unsigned long address, void *sc_ptr);
  89 extern void forward_pending_sigio(int target);
  90 extern int can_do_skas(void);
  91 extern void arch_init_thread(void);
  92 extern int setjmp_wrapper(void (*proc)(void *, void *), ...);
  93 extern int raw(int fd);
  94
  95 #endif
  96
  97 /*
  98  * Overrides for Emacs so that we follow Linus's tabbing style.
  99  * Emacs will notice this stuff at the end of the file and automatically
 100  * adjust the settings for this buffer only.  This must remain at the end
 101  * of the file.
 102  * ---------------------------------------------------------------------------
 103  * Local variables:
 104  * c-file-style: "linux"
 105  * End:
 106  */