Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 1 | /* |
Jeff Dike | ba180fd | 2007-10-16 01:27:00 -0700 | [diff] [blame^] | 2 | * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Licensed under the GPL |
| 4 | */ |
| 5 | |
| 6 | #ifndef __OS_H__ |
| 7 | #define __OS_H__ |
| 8 | |
Jeff Dike | ba180fd | 2007-10-16 01:27:00 -0700 | [diff] [blame^] | 9 | #include <stdarg.h> |
Jeff Dike | 63ae2a9 | 2006-03-27 01:14:30 -0800 | [diff] [blame] | 10 | #include "irq_user.h" |
Jeff Dike | ba180fd | 2007-10-16 01:27:00 -0700 | [diff] [blame^] | 11 | #include "kern_util.h" |
| 12 | #include "longjmp.h" |
| 13 | #include "mm_id.h" |
Paolo 'Blaisorblade' Giarrusso | dd77aec | 2006-03-31 02:30:23 -0800 | [diff] [blame] | 14 | #include "sysdep/tls.h" |
Jeff Dike | ba180fd | 2007-10-16 01:27:00 -0700 | [diff] [blame^] | 15 | #include "../os/include/file.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | |
Jeff Dike | 24fa6c0 | 2007-05-06 14:51:09 -0700 | [diff] [blame] | 17 | #define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR)) |
| 18 | |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 19 | #define OS_TYPE_FILE 1 |
| 20 | #define OS_TYPE_DIR 2 |
| 21 | #define OS_TYPE_SYMLINK 3 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #define OS_TYPE_CHARDEV 4 |
| 23 | #define OS_TYPE_BLOCKDEV 5 |
| 24 | #define OS_TYPE_FIFO 6 |
| 25 | #define OS_TYPE_SOCK 7 |
| 26 | |
| 27 | /* os_access() flags */ |
| 28 | #define OS_ACC_F_OK 0 /* Test for existence. */ |
| 29 | #define OS_ACC_X_OK 1 /* Test for execute permission. */ |
| 30 | #define OS_ACC_W_OK 2 /* Test for write permission. */ |
| 31 | #define OS_ACC_R_OK 4 /* Test for read permission. */ |
| 32 | #define OS_ACC_RW_OK (OS_ACC_W_OK | OS_ACC_R_OK) /* Test for RW permission */ |
| 33 | |
| 34 | /* |
| 35 | * types taken from stat_file() in hostfs_user.c |
| 36 | * (if they are wrong here, they are wrong there...). |
| 37 | */ |
| 38 | struct uml_stat { |
| 39 | int ust_dev; /* device */ |
| 40 | unsigned long long ust_ino; /* inode */ |
| 41 | int ust_mode; /* protection */ |
| 42 | int ust_nlink; /* number of hard links */ |
| 43 | int ust_uid; /* user ID of owner */ |
| 44 | int ust_gid; /* group ID of owner */ |
| 45 | unsigned long long ust_size; /* total size, in bytes */ |
| 46 | int ust_blksize; /* blocksize for filesystem I/O */ |
| 47 | unsigned long long ust_blocks; /* number of blocks allocated */ |
| 48 | unsigned long ust_atime; /* time of last access */ |
| 49 | unsigned long ust_mtime; /* time of last modification */ |
| 50 | unsigned long ust_ctime; /* time of last change */ |
| 51 | }; |
| 52 | |
| 53 | struct openflags { |
| 54 | unsigned int r : 1; |
| 55 | unsigned int w : 1; |
| 56 | unsigned int s : 1; /* O_SYNC */ |
| 57 | unsigned int c : 1; /* O_CREAT */ |
| 58 | unsigned int t : 1; /* O_TRUNC */ |
| 59 | unsigned int a : 1; /* O_APPEND */ |
| 60 | unsigned int e : 1; /* O_EXCL */ |
| 61 | unsigned int cl : 1; /* FD_CLOEXEC */ |
| 62 | }; |
| 63 | |
| 64 | #define OPENFLAGS() ((struct openflags) { .r = 0, .w = 0, .s = 0, .c = 0, \ |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 65 | .t = 0, .a = 0, .e = 0, .cl = 0 }) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | |
| 67 | static inline struct openflags of_read(struct openflags flags) |
| 68 | { |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 69 | flags.r = 1; |
| 70 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | } |
| 72 | |
| 73 | static inline struct openflags of_write(struct openflags flags) |
| 74 | { |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 75 | flags.w = 1; |
| 76 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | static inline struct openflags of_rdwr(struct openflags flags) |
| 80 | { |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 81 | return of_read(of_write(flags)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | static inline struct openflags of_set_rw(struct openflags flags, int r, int w) |
| 85 | { |
| 86 | flags.r = r; |
| 87 | flags.w = w; |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 88 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | static inline struct openflags of_sync(struct openflags flags) |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 92 | { |
| 93 | flags.s = 1; |
| 94 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | } |
| 96 | |
| 97 | static inline struct openflags of_create(struct openflags flags) |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 98 | { |
| 99 | flags.c = 1; |
| 100 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | } |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 102 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | static inline struct openflags of_trunc(struct openflags flags) |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 104 | { |
| 105 | flags.t = 1; |
| 106 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | } |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 108 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | static inline struct openflags of_append(struct openflags flags) |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 110 | { |
| 111 | flags.a = 1; |
| 112 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | } |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 114 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | static inline struct openflags of_excl(struct openflags flags) |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 116 | { |
| 117 | flags.e = 1; |
| 118 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | static inline struct openflags of_cloexec(struct openflags flags) |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 122 | { |
| 123 | flags.cl = 1; |
| 124 | return flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | } |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 126 | |
Jeff Dike | cf9165a | 2006-03-27 01:14:36 -0800 | [diff] [blame] | 127 | /* file.c */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | extern int os_stat_file(const char *file_name, struct uml_stat *buf); |
| 129 | extern int os_stat_fd(const int fd, struct uml_stat *buf); |
| 130 | extern int os_access(const char *file, int mode); |
| 131 | extern void os_print_error(int error, const char* str); |
| 132 | extern int os_get_exec_close(int fd, int *close_on_exec); |
| 133 | extern int os_set_exec_close(int fd, int close_on_exec); |
| 134 | extern int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | extern int os_new_tty_pgrp(int fd, int pid); |
| 136 | extern int os_get_ifname(int fd, char *namebuf); |
| 137 | extern int os_set_slip(int fd); |
| 138 | extern int os_set_owner(int fd, int pid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | extern int os_mode_fd(int fd, int mode); |
| 140 | |
Jeff Dike | ba180fd | 2007-10-16 01:27:00 -0700 | [diff] [blame^] | 141 | extern int os_seek_file(int fd, unsigned long long offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | extern int os_open_file(char *file, struct openflags flags, int mode); |
| 143 | extern int os_read_file(int fd, void *buf, int len); |
| 144 | extern int os_write_file(int fd, const void *buf, int count); |
Jeff Dike | da00d9a | 2005-06-08 15:48:01 -0700 | [diff] [blame] | 145 | extern int os_file_size(char *file, unsigned long long *size_out); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | extern int os_file_modtime(char *file, unsigned long *modtime); |
| 147 | extern int os_pipe(int *fd, int stream, int close_on_exec); |
| 148 | extern int os_set_fd_async(int fd, int owner); |
| 149 | extern int os_clear_fd_async(int fd); |
| 150 | extern int os_set_fd_block(int fd, int blocking); |
| 151 | extern int os_accept_connection(int fd); |
| 152 | extern int os_create_unix_socket(char *file, int len, int close_on_exec); |
| 153 | extern int os_shutdown_socket(int fd, int r, int w); |
| 154 | extern void os_close_file(int fd); |
| 155 | extern int os_rcv_fd(int fd, int *helper_pid_out); |
| 156 | extern int create_unix_socket(char *file, int len, int close_on_exec); |
| 157 | extern int os_connect_socket(char *name); |
| 158 | extern int os_file_type(char *file); |
| 159 | extern int os_file_mode(char *file, struct openflags *mode_out); |
| 160 | extern int os_lock_file(int fd, int excl); |
Jeff Dike | cf9165a | 2006-03-27 01:14:36 -0800 | [diff] [blame] | 161 | extern void os_flush_stdout(void); |
| 162 | extern int os_stat_filesystem(char *path, long *bsize_out, |
| 163 | long long *blocks_out, long long *bfree_out, |
| 164 | long long *bavail_out, long long *files_out, |
| 165 | long long *ffree_out, void *fsid_out, |
| 166 | int fsid_size, long *namelen_out, |
| 167 | long *spare_out); |
| 168 | extern int os_change_dir(char *dir); |
| 169 | extern int os_fchange_dir(int fd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | |
Gennady Sharapov | 60d339f | 2005-09-03 15:57:47 -0700 | [diff] [blame] | 171 | /* start_up.c */ |
| 172 | extern void os_early_checks(void); |
| 173 | extern int can_do_skas(void); |
Jeff Dike | 8e36706 | 2006-03-27 01:14:32 -0800 | [diff] [blame] | 174 | extern void os_check_bugs(void); |
Paolo 'Blaisorblade' Giarrusso | 3feb885 | 2006-03-31 02:30:25 -0800 | [diff] [blame] | 175 | extern void check_host_supports_tls(int *supports_tls, int *tls_min); |
Gennady Sharapov | 60d339f | 2005-09-03 15:57:47 -0700 | [diff] [blame] | 176 | |
Paolo 'Blaisorblade' Giarrusso | 8923648 | 2005-09-30 11:59:00 -0700 | [diff] [blame] | 177 | /* Make sure they are clear when running in TT mode. Required by |
| 178 | * SEGV_MAYBE_FIXABLE */ |
| 179 | #define clear_can_do_skas() do { ptrace_faultinfo = proc_mm = 0; } while (0) |
| 180 | |
Jeff Dike | 0f80bc8 | 2005-09-16 19:27:50 -0700 | [diff] [blame] | 181 | /* mem.c */ |
Jeff Dike | ae17381 | 2005-11-07 00:58:57 -0800 | [diff] [blame] | 182 | extern int create_mem_file(unsigned long long len); |
Jeff Dike | 0f80bc8 | 2005-09-16 19:27:50 -0700 | [diff] [blame] | 183 | |
Gennady Sharapov | 60d339f | 2005-09-03 15:57:47 -0700 | [diff] [blame] | 184 | /* process.c */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | extern unsigned long os_process_pc(int pid); |
| 186 | extern int os_process_parent(int pid); |
| 187 | extern void os_stop_process(int pid); |
| 188 | extern void os_kill_process(int pid, int reap_child); |
| 189 | extern void os_kill_ptraced_process(int pid, int reap_child); |
Paolo 'Blaisorblade' Giarrusso | 07f4e2c | 2006-02-24 13:03:55 -0800 | [diff] [blame] | 190 | extern long os_ptrace_ldt(long pid, long addr, long data); |
| 191 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | extern int os_getpid(void); |
Jeff Dike | cd2ee4a | 2005-05-05 16:15:32 -0700 | [diff] [blame] | 193 | extern int os_getpgrp(void); |
Paolo 'Blaisorblade' Giarrusso | 07f4e2c | 2006-02-24 13:03:55 -0800 | [diff] [blame] | 194 | |
Jeff Dike | e64bd13 | 2006-07-10 04:45:07 -0700 | [diff] [blame] | 195 | extern void init_new_thread_signals(void); |
Gennady Sharapov | 60d339f | 2005-09-03 15:57:47 -0700 | [diff] [blame] | 196 | extern int run_kernel_thread(int (*fn)(void *), void *arg, void **jmp_ptr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | |
| 198 | extern int os_map_memory(void *virt, int fd, unsigned long long off, |
| 199 | unsigned long len, int r, int w, int x); |
Jeff Dike | 329c6e4 | 2006-07-14 00:24:03 -0700 | [diff] [blame] | 200 | extern int os_protect_memory(void *addr, unsigned long len, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | int r, int w, int x); |
| 202 | extern int os_unmap_memory(void *addr, int len); |
Jeff Dike | 02dea08 | 2006-03-31 02:30:08 -0800 | [diff] [blame] | 203 | extern int os_drop_memory(void *addr, int length); |
| 204 | extern int can_drop_memory(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | extern void os_flush_stdout(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | |
Gennady Sharapov | bb57842 | 2005-11-07 00:58:50 -0800 | [diff] [blame] | 207 | /* uaccess.c */ |
| 208 | extern unsigned long __do_user_copy(void *to, const void *from, int n, |
| 209 | void **fault_addr, void **fault_catcher, |
| 210 | void (*op)(void *to, const void *from, |
| 211 | int n), int *faulted_out); |
| 212 | |
Paolo 'Blaisorblade' Giarrusso | 5d48545 | 2006-11-25 11:09:39 -0800 | [diff] [blame] | 213 | /* execvp.c */ |
| 214 | extern int execvp_noalloc(char *buf, const char *file, char *const argv[]); |
Jeff Dike | ff5c6ff | 2005-11-07 00:58:51 -0800 | [diff] [blame] | 215 | /* helper.c */ |
Jeff Dike | c439901 | 2007-07-15 23:38:56 -0700 | [diff] [blame] | 216 | extern int run_helper(void (*pre_exec)(void *), void *pre_data, char **argv); |
Jeff Dike | ff5c6ff | 2005-11-07 00:58:51 -0800 | [diff] [blame] | 217 | extern int run_helper_thread(int (*proc)(void *), void *arg, |
Jeff Dike | c439901 | 2007-07-15 23:38:56 -0700 | [diff] [blame] | 218 | unsigned int flags, unsigned long *stack_out); |
Jeff Dike | ff5c6ff | 2005-11-07 00:58:51 -0800 | [diff] [blame] | 219 | extern int helper_wait(int pid); |
| 220 | |
Paolo 'Blaisorblade' Giarrusso | aa6758d | 2006-03-31 02:30:22 -0800 | [diff] [blame] | 221 | |
| 222 | /* tls.c */ |
Paolo 'Blaisorblade' Giarrusso | dd77aec | 2006-03-31 02:30:23 -0800 | [diff] [blame] | 223 | extern int os_set_thread_area(user_desc_t *info, int pid); |
| 224 | extern int os_get_thread_area(user_desc_t *info, int pid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | |
Paolo 'Blaisorblade' Giarrusso | dd77aec | 2006-03-31 02:30:23 -0800 | [diff] [blame] | 226 | /* umid.c */ |
Jeff Dike | 2264c47 | 2006-01-06 00:18:59 -0800 | [diff] [blame] | 227 | extern int umid_file_name(char *name, char *buf, int len); |
Jeff Dike | 7eebe8a | 2006-01-06 00:19:01 -0800 | [diff] [blame] | 228 | extern int set_umid(char *name); |
| 229 | extern char *get_umid(void); |
Jeff Dike | 2264c47 | 2006-01-06 00:18:59 -0800 | [diff] [blame] | 230 | |
Gennady Sharapov | 0805d89 | 2006-01-08 01:01:29 -0800 | [diff] [blame] | 231 | /* signal.c */ |
| 232 | extern void set_sigstack(void *sig_stack, int size); |
| 233 | extern void remove_sigstack(void); |
| 234 | extern void set_handler(int sig, void (*handler)(int), int flags, ...); |
| 235 | extern int change_sig(int signal, int on); |
| 236 | extern void block_signals(void); |
| 237 | extern void unblock_signals(void); |
| 238 | extern int get_signals(void); |
| 239 | extern int set_signals(int enable); |
| 240 | |
Gennady Sharapov | ea2ba7d | 2006-01-08 01:01:31 -0800 | [diff] [blame] | 241 | /* trap.c */ |
| 242 | extern void os_fill_handlinfo(struct kern_handlers h); |
| 243 | extern void do_longjmp(void *p, int val); |
| 244 | |
Gennady Sharapov | 4fef0c1 | 2006-01-18 17:42:41 -0800 | [diff] [blame] | 245 | /* util.c */ |
| 246 | extern void stack_protections(unsigned long address); |
Gennady Sharapov | 4fef0c1 | 2006-01-18 17:42:41 -0800 | [diff] [blame] | 247 | extern int raw(int fd); |
| 248 | extern void setup_machinename(char *machine_out); |
Jeff Dike | b4ffb6a | 2007-05-06 14:50:59 -0700 | [diff] [blame] | 249 | extern void setup_hostinfo(char *buf, int len); |
Gennady Sharapov | 4fef0c1 | 2006-01-18 17:42:41 -0800 | [diff] [blame] | 250 | extern int setjmp_wrapper(void (*proc)(void *, void *), ...); |
Jeff Dike | 63843c2 | 2007-05-06 14:51:39 -0700 | [diff] [blame] | 251 | extern void os_dump_core(void); |
Gennady Sharapov | 4fef0c1 | 2006-01-18 17:42:41 -0800 | [diff] [blame] | 252 | |
Gennady Sharapov | cff65c4 | 2006-01-18 17:42:42 -0800 | [diff] [blame] | 253 | /* time.c */ |
| 254 | #define BILLION (1000 * 1000 * 1000) |
| 255 | |
| 256 | extern void switch_timers(int to_real); |
| 257 | extern void idle_sleep(int secs); |
Jeff Dike | 537ae94 | 2006-09-25 23:33:05 -0700 | [diff] [blame] | 258 | extern int set_interval(int is_virtual); |
Gennady Sharapov | cff65c4 | 2006-01-18 17:42:42 -0800 | [diff] [blame] | 259 | extern void disable_timer(void); |
Gennady Sharapov | cff65c4 | 2006-01-18 17:42:42 -0800 | [diff] [blame] | 260 | extern void uml_idle_timer(void); |
| 261 | extern unsigned long long os_nsecs(void); |
| 262 | |
Gennady Sharapov | f45d9fc | 2006-01-18 17:42:45 -0800 | [diff] [blame] | 263 | /* skas/mem.c */ |
| 264 | extern long run_syscall_stub(struct mm_id * mm_idp, |
| 265 | int syscall, unsigned long *args, long expected, |
| 266 | void **addr, int done); |
| 267 | extern long syscall_stub_data(struct mm_id * mm_idp, |
| 268 | unsigned long *data, int data_count, |
| 269 | void **addr, void **stub_addr); |
| 270 | extern int map(struct mm_id * mm_idp, unsigned long virt, |
Jeff Dike | 16dd07b | 2007-05-06 14:51:48 -0700 | [diff] [blame] | 271 | unsigned long len, int prot, int phys_fd, |
Gennady Sharapov | f45d9fc | 2006-01-18 17:42:45 -0800 | [diff] [blame] | 272 | unsigned long long offset, int done, void **data); |
Jeff Dike | 64f6084 | 2007-05-06 14:51:45 -0700 | [diff] [blame] | 273 | extern int unmap(struct mm_id * mm_idp, unsigned long addr, unsigned long len, |
Gennady Sharapov | f45d9fc | 2006-01-18 17:42:45 -0800 | [diff] [blame] | 274 | int done, void **data); |
| 275 | extern int protect(struct mm_id * mm_idp, unsigned long addr, |
Jeff Dike | 16dd07b | 2007-05-06 14:51:48 -0700 | [diff] [blame] | 276 | unsigned long len, unsigned int prot, int done, void **data); |
Gennady Sharapov | f45d9fc | 2006-01-18 17:42:45 -0800 | [diff] [blame] | 277 | |
Gennady Sharapov | abaf697 | 2006-01-18 17:42:46 -0800 | [diff] [blame] | 278 | /* skas/process.c */ |
| 279 | extern int is_skas_winch(int pid, int fd, void *data); |
| 280 | extern int start_userspace(unsigned long stub_stack); |
| 281 | extern int copy_context_skas0(unsigned long stack, int pid); |
Jeff Dike | 77bf440 | 2007-10-16 01:26:58 -0700 | [diff] [blame] | 282 | extern void save_registers(int pid, struct uml_pt_regs *regs); |
| 283 | extern void restore_registers(int pid, struct uml_pt_regs *regs); |
| 284 | extern void userspace(struct uml_pt_regs *regs); |
Gennady Sharapov | abaf697 | 2006-01-18 17:42:46 -0800 | [diff] [blame] | 285 | extern void map_stub_pages(int fd, unsigned long code, |
| 286 | unsigned long data, unsigned long stack); |
Jeff Dike | 3c91735 | 2006-09-27 01:50:40 -0700 | [diff] [blame] | 287 | extern void new_thread(void *stack, jmp_buf *buf, void (*handler)(void)); |
| 288 | extern void switch_threads(jmp_buf *me, jmp_buf *you); |
| 289 | extern int start_idle_thread(void *stack, jmp_buf *switch_buf); |
Gennady Sharapov | abaf697 | 2006-01-18 17:42:46 -0800 | [diff] [blame] | 290 | extern void initial_thread_cb_skas(void (*proc)(void *), |
| 291 | void *arg); |
| 292 | extern void halt_skas(void); |
| 293 | extern void reboot_skas(void); |
| 294 | |
Jeff Dike | 63ae2a9 | 2006-03-27 01:14:30 -0800 | [diff] [blame] | 295 | /* irq.c */ |
| 296 | extern int os_waiting_for_events(struct irq_fd *active_fds); |
Jeff Dike | 63ae2a9 | 2006-03-27 01:14:30 -0800 | [diff] [blame] | 297 | extern int os_create_pollfd(int fd, int events, void *tmp_pfd, int size_tmpfds); |
| 298 | extern void os_free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg, |
| 299 | struct irq_fd *active_fds, struct irq_fd ***last_irq_ptr2); |
| 300 | extern void os_free_irq_later(struct irq_fd *active_fds, |
| 301 | int irq, void *dev_id); |
| 302 | extern int os_get_pollfd(int i); |
| 303 | extern void os_set_pollfd(int i, int fd); |
| 304 | extern void os_set_ioignore(void); |
| 305 | extern void init_irq_signals(int on_sigstack); |
| 306 | |
Jeff Dike | f206aab | 2006-03-27 01:14:33 -0800 | [diff] [blame] | 307 | /* sigio.c */ |
Jeff Dike | 19bdf04 | 2006-09-25 23:33:04 -0700 | [diff] [blame] | 308 | extern int add_sigio_fd(int fd); |
Jeff Dike | f206aab | 2006-03-27 01:14:33 -0800 | [diff] [blame] | 309 | extern int ignore_sigio_fd(int fd); |
Jeff Dike | 8e64d96a | 2006-07-10 04:45:11 -0700 | [diff] [blame] | 310 | extern void maybe_sigio_broken(int fd, int read); |
Jeff Dike | f206aab | 2006-03-27 01:14:33 -0800 | [diff] [blame] | 311 | |
Jeff Dike | cf9165a | 2006-03-27 01:14:36 -0800 | [diff] [blame] | 312 | /* skas/trap */ |
| 313 | extern void sig_handler_common_skas(int sig, void *sc_ptr); |
Jeff Dike | cf9165a | 2006-03-27 01:14:36 -0800 | [diff] [blame] | 314 | |
Jeff Dike | 24fa6c0 | 2007-05-06 14:51:09 -0700 | [diff] [blame] | 315 | /* sys-x86_64/prctl.c */ |
Jeff Dike | f355559 | 2007-02-10 01:44:29 -0800 | [diff] [blame] | 316 | extern int os_arch_prctl(int pid, int code, unsigned long *addr); |
| 317 | |
Jeff Dike | 24fa6c0 | 2007-05-06 14:51:09 -0700 | [diff] [blame] | 318 | /* tty.c */ |
| 319 | int get_pty(void); |
| 320 | |
Jeff Dike | 2264c47 | 2006-01-06 00:18:59 -0800 | [diff] [blame] | 321 | #endif |