Gennady Sharapov | ea2ba7d | 2006-01-08 01:01:31 -0800 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 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 __USER_UTIL_H__ |
| 7 | #define __USER_UTIL_H__ |
| 8 | |
| 9 | #include "sysdep/ptrace.h" |
| 10 | |
Rusty Russell | c5e631c | 2007-05-06 14:51:05 -0700 | [diff] [blame] | 11 | /* Copied from kernel.h and compiler-gcc.h */ |
| 12 | |
| 13 | /* Force a compilation error if condition is true, but also produce a |
| 14 | result (of value 0 and type size_t), so the expression can be used |
| 15 | e.g. in a structure initializer (or where-ever else comma expressions |
| 16 | aren't permitted). */ |
| 17 | #define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1) |
| 18 | |
| 19 | /* &a[0] degrades to a pointer: a different type from an array */ |
| 20 | #define __must_be_array(a) \ |
| 21 | BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(typeof(a), typeof(&a[0]))) |
| 22 | |
| 23 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) |
Paolo 'Blaisorblade' Giarrusso | 3feb885 | 2006-03-31 02:30:25 -0800 | [diff] [blame] | 24 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR)) |
| 26 | |
| 27 | extern int mode_tt; |
| 28 | |
| 29 | extern int grantpt(int __fd); |
| 30 | extern int unlockpt(int __fd); |
| 31 | extern char *ptsname(int __fd); |
| 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | extern void *add_signal_handler(int sig, void (*handler)(int)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | extern void input_cb(void (*proc)(void *), void *arg, int arg_len); |
| 35 | extern int get_pty(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | extern int switcheroo(int fd, int prot, void *from, void *to, int size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | extern void do_exec(int old_pid, int new_pid); |
Paolo 'Blaisorblade' Giarrusso | 9cf85b3 | 2006-04-10 22:53:31 -0700 | [diff] [blame] | 38 | extern void tracer_panic(char *msg, ...) |
| 39 | __attribute__ ((format (printf, 1, 2))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | extern int detach(int pid, int sig); |
| 41 | extern int attach(int pid); |
| 42 | extern void kill_child_dead(int pid); |
| 43 | extern int cont(int pid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | extern void check_sigio(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | extern int raw(int fd); |
| 46 | |
| 47 | #endif |