mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-27 04:54:41 +08:00
b611967de4
Implement the epoll_pwait system call, that extend the event wait mechanism
with the same logic ppoll and pselect do. The definition of epoll_pwait
is:
int epoll_pwait(int epfd, struct epoll_event *events, int maxevents,
int timeout, const sigset_t *sigmask, size_t sigsetsize);
The difference between the vanilla epoll_wait and epoll_pwait is that the
latter allows the caller to specify a signal mask to be set while waiting
for events. Hence epoll_pwait will wait until either one monitored event,
or an unmasked signal happen. If sigmask is NULL, the epoll_pwait system
call will act exactly like epoll_wait. For the POSIX definition of
pselect, information is available here:
http://www.opengroup.org/onlinepubs/009695399/functions/select.html
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Andi Kleen <ak@muc.de>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
467 lines
13 KiB
C
467 lines
13 KiB
C
#ifndef _ASM_I386_UNISTD_H_
|
|
#define _ASM_I386_UNISTD_H_
|
|
|
|
/*
|
|
* This file contains the system call numbers.
|
|
*/
|
|
|
|
#define __NR_restart_syscall 0
|
|
#define __NR_exit 1
|
|
#define __NR_fork 2
|
|
#define __NR_read 3
|
|
#define __NR_write 4
|
|
#define __NR_open 5
|
|
#define __NR_close 6
|
|
#define __NR_waitpid 7
|
|
#define __NR_creat 8
|
|
#define __NR_link 9
|
|
#define __NR_unlink 10
|
|
#define __NR_execve 11
|
|
#define __NR_chdir 12
|
|
#define __NR_time 13
|
|
#define __NR_mknod 14
|
|
#define __NR_chmod 15
|
|
#define __NR_lchown 16
|
|
#define __NR_break 17
|
|
#define __NR_oldstat 18
|
|
#define __NR_lseek 19
|
|
#define __NR_getpid 20
|
|
#define __NR_mount 21
|
|
#define __NR_umount 22
|
|
#define __NR_setuid 23
|
|
#define __NR_getuid 24
|
|
#define __NR_stime 25
|
|
#define __NR_ptrace 26
|
|
#define __NR_alarm 27
|
|
#define __NR_oldfstat 28
|
|
#define __NR_pause 29
|
|
#define __NR_utime 30
|
|
#define __NR_stty 31
|
|
#define __NR_gtty 32
|
|
#define __NR_access 33
|
|
#define __NR_nice 34
|
|
#define __NR_ftime 35
|
|
#define __NR_sync 36
|
|
#define __NR_kill 37
|
|
#define __NR_rename 38
|
|
#define __NR_mkdir 39
|
|
#define __NR_rmdir 40
|
|
#define __NR_dup 41
|
|
#define __NR_pipe 42
|
|
#define __NR_times 43
|
|
#define __NR_prof 44
|
|
#define __NR_brk 45
|
|
#define __NR_setgid 46
|
|
#define __NR_getgid 47
|
|
#define __NR_signal 48
|
|
#define __NR_geteuid 49
|
|
#define __NR_getegid 50
|
|
#define __NR_acct 51
|
|
#define __NR_umount2 52
|
|
#define __NR_lock 53
|
|
#define __NR_ioctl 54
|
|
#define __NR_fcntl 55
|
|
#define __NR_mpx 56
|
|
#define __NR_setpgid 57
|
|
#define __NR_ulimit 58
|
|
#define __NR_oldolduname 59
|
|
#define __NR_umask 60
|
|
#define __NR_chroot 61
|
|
#define __NR_ustat 62
|
|
#define __NR_dup2 63
|
|
#define __NR_getppid 64
|
|
#define __NR_getpgrp 65
|
|
#define __NR_setsid 66
|
|
#define __NR_sigaction 67
|
|
#define __NR_sgetmask 68
|
|
#define __NR_ssetmask 69
|
|
#define __NR_setreuid 70
|
|
#define __NR_setregid 71
|
|
#define __NR_sigsuspend 72
|
|
#define __NR_sigpending 73
|
|
#define __NR_sethostname 74
|
|
#define __NR_setrlimit 75
|
|
#define __NR_getrlimit 76 /* Back compatible 2Gig limited rlimit */
|
|
#define __NR_getrusage 77
|
|
#define __NR_gettimeofday 78
|
|
#define __NR_settimeofday 79
|
|
#define __NR_getgroups 80
|
|
#define __NR_setgroups 81
|
|
#define __NR_select 82
|
|
#define __NR_symlink 83
|
|
#define __NR_oldlstat 84
|
|
#define __NR_readlink 85
|
|
#define __NR_uselib 86
|
|
#define __NR_swapon 87
|
|
#define __NR_reboot 88
|
|
#define __NR_readdir 89
|
|
#define __NR_mmap 90
|
|
#define __NR_munmap 91
|
|
#define __NR_truncate 92
|
|
#define __NR_ftruncate 93
|
|
#define __NR_fchmod 94
|
|
#define __NR_fchown 95
|
|
#define __NR_getpriority 96
|
|
#define __NR_setpriority 97
|
|
#define __NR_profil 98
|
|
#define __NR_statfs 99
|
|
#define __NR_fstatfs 100
|
|
#define __NR_ioperm 101
|
|
#define __NR_socketcall 102
|
|
#define __NR_syslog 103
|
|
#define __NR_setitimer 104
|
|
#define __NR_getitimer 105
|
|
#define __NR_stat 106
|
|
#define __NR_lstat 107
|
|
#define __NR_fstat 108
|
|
#define __NR_olduname 109
|
|
#define __NR_iopl 110
|
|
#define __NR_vhangup 111
|
|
#define __NR_idle 112
|
|
#define __NR_vm86old 113
|
|
#define __NR_wait4 114
|
|
#define __NR_swapoff 115
|
|
#define __NR_sysinfo 116
|
|
#define __NR_ipc 117
|
|
#define __NR_fsync 118
|
|
#define __NR_sigreturn 119
|
|
#define __NR_clone 120
|
|
#define __NR_setdomainname 121
|
|
#define __NR_uname 122
|
|
#define __NR_modify_ldt 123
|
|
#define __NR_adjtimex 124
|
|
#define __NR_mprotect 125
|
|
#define __NR_sigprocmask 126
|
|
#define __NR_create_module 127
|
|
#define __NR_init_module 128
|
|
#define __NR_delete_module 129
|
|
#define __NR_get_kernel_syms 130
|
|
#define __NR_quotactl 131
|
|
#define __NR_getpgid 132
|
|
#define __NR_fchdir 133
|
|
#define __NR_bdflush 134
|
|
#define __NR_sysfs 135
|
|
#define __NR_personality 136
|
|
#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
|
|
#define __NR_setfsuid 138
|
|
#define __NR_setfsgid 139
|
|
#define __NR__llseek 140
|
|
#define __NR_getdents 141
|
|
#define __NR__newselect 142
|
|
#define __NR_flock 143
|
|
#define __NR_msync 144
|
|
#define __NR_readv 145
|
|
#define __NR_writev 146
|
|
#define __NR_getsid 147
|
|
#define __NR_fdatasync 148
|
|
#define __NR__sysctl 149
|
|
#define __NR_mlock 150
|
|
#define __NR_munlock 151
|
|
#define __NR_mlockall 152
|
|
#define __NR_munlockall 153
|
|
#define __NR_sched_setparam 154
|
|
#define __NR_sched_getparam 155
|
|
#define __NR_sched_setscheduler 156
|
|
#define __NR_sched_getscheduler 157
|
|
#define __NR_sched_yield 158
|
|
#define __NR_sched_get_priority_max 159
|
|
#define __NR_sched_get_priority_min 160
|
|
#define __NR_sched_rr_get_interval 161
|
|
#define __NR_nanosleep 162
|
|
#define __NR_mremap 163
|
|
#define __NR_setresuid 164
|
|
#define __NR_getresuid 165
|
|
#define __NR_vm86 166
|
|
#define __NR_query_module 167
|
|
#define __NR_poll 168
|
|
#define __NR_nfsservctl 169
|
|
#define __NR_setresgid 170
|
|
#define __NR_getresgid 171
|
|
#define __NR_prctl 172
|
|
#define __NR_rt_sigreturn 173
|
|
#define __NR_rt_sigaction 174
|
|
#define __NR_rt_sigprocmask 175
|
|
#define __NR_rt_sigpending 176
|
|
#define __NR_rt_sigtimedwait 177
|
|
#define __NR_rt_sigqueueinfo 178
|
|
#define __NR_rt_sigsuspend 179
|
|
#define __NR_pread64 180
|
|
#define __NR_pwrite64 181
|
|
#define __NR_chown 182
|
|
#define __NR_getcwd 183
|
|
#define __NR_capget 184
|
|
#define __NR_capset 185
|
|
#define __NR_sigaltstack 186
|
|
#define __NR_sendfile 187
|
|
#define __NR_getpmsg 188 /* some people actually want streams */
|
|
#define __NR_putpmsg 189 /* some people actually want streams */
|
|
#define __NR_vfork 190
|
|
#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */
|
|
#define __NR_mmap2 192
|
|
#define __NR_truncate64 193
|
|
#define __NR_ftruncate64 194
|
|
#define __NR_stat64 195
|
|
#define __NR_lstat64 196
|
|
#define __NR_fstat64 197
|
|
#define __NR_lchown32 198
|
|
#define __NR_getuid32 199
|
|
#define __NR_getgid32 200
|
|
#define __NR_geteuid32 201
|
|
#define __NR_getegid32 202
|
|
#define __NR_setreuid32 203
|
|
#define __NR_setregid32 204
|
|
#define __NR_getgroups32 205
|
|
#define __NR_setgroups32 206
|
|
#define __NR_fchown32 207
|
|
#define __NR_setresuid32 208
|
|
#define __NR_getresuid32 209
|
|
#define __NR_setresgid32 210
|
|
#define __NR_getresgid32 211
|
|
#define __NR_chown32 212
|
|
#define __NR_setuid32 213
|
|
#define __NR_setgid32 214
|
|
#define __NR_setfsuid32 215
|
|
#define __NR_setfsgid32 216
|
|
#define __NR_pivot_root 217
|
|
#define __NR_mincore 218
|
|
#define __NR_madvise 219
|
|
#define __NR_madvise1 219 /* delete when C lib stub is removed */
|
|
#define __NR_getdents64 220
|
|
#define __NR_fcntl64 221
|
|
/* 223 is unused */
|
|
#define __NR_gettid 224
|
|
#define __NR_readahead 225
|
|
#define __NR_setxattr 226
|
|
#define __NR_lsetxattr 227
|
|
#define __NR_fsetxattr 228
|
|
#define __NR_getxattr 229
|
|
#define __NR_lgetxattr 230
|
|
#define __NR_fgetxattr 231
|
|
#define __NR_listxattr 232
|
|
#define __NR_llistxattr 233
|
|
#define __NR_flistxattr 234
|
|
#define __NR_removexattr 235
|
|
#define __NR_lremovexattr 236
|
|
#define __NR_fremovexattr 237
|
|
#define __NR_tkill 238
|
|
#define __NR_sendfile64 239
|
|
#define __NR_futex 240
|
|
#define __NR_sched_setaffinity 241
|
|
#define __NR_sched_getaffinity 242
|
|
#define __NR_set_thread_area 243
|
|
#define __NR_get_thread_area 244
|
|
#define __NR_io_setup 245
|
|
#define __NR_io_destroy 246
|
|
#define __NR_io_getevents 247
|
|
#define __NR_io_submit 248
|
|
#define __NR_io_cancel 249
|
|
#define __NR_fadvise64 250
|
|
/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
|
|
#define __NR_exit_group 252
|
|
#define __NR_lookup_dcookie 253
|
|
#define __NR_epoll_create 254
|
|
#define __NR_epoll_ctl 255
|
|
#define __NR_epoll_wait 256
|
|
#define __NR_remap_file_pages 257
|
|
#define __NR_set_tid_address 258
|
|
#define __NR_timer_create 259
|
|
#define __NR_timer_settime (__NR_timer_create+1)
|
|
#define __NR_timer_gettime (__NR_timer_create+2)
|
|
#define __NR_timer_getoverrun (__NR_timer_create+3)
|
|
#define __NR_timer_delete (__NR_timer_create+4)
|
|
#define __NR_clock_settime (__NR_timer_create+5)
|
|
#define __NR_clock_gettime (__NR_timer_create+6)
|
|
#define __NR_clock_getres (__NR_timer_create+7)
|
|
#define __NR_clock_nanosleep (__NR_timer_create+8)
|
|
#define __NR_statfs64 268
|
|
#define __NR_fstatfs64 269
|
|
#define __NR_tgkill 270
|
|
#define __NR_utimes 271
|
|
#define __NR_fadvise64_64 272
|
|
#define __NR_vserver 273
|
|
#define __NR_mbind 274
|
|
#define __NR_get_mempolicy 275
|
|
#define __NR_set_mempolicy 276
|
|
#define __NR_mq_open 277
|
|
#define __NR_mq_unlink (__NR_mq_open+1)
|
|
#define __NR_mq_timedsend (__NR_mq_open+2)
|
|
#define __NR_mq_timedreceive (__NR_mq_open+3)
|
|
#define __NR_mq_notify (__NR_mq_open+4)
|
|
#define __NR_mq_getsetattr (__NR_mq_open+5)
|
|
#define __NR_kexec_load 283
|
|
#define __NR_waitid 284
|
|
/* #define __NR_sys_setaltroot 285 */
|
|
#define __NR_add_key 286
|
|
#define __NR_request_key 287
|
|
#define __NR_keyctl 288
|
|
#define __NR_ioprio_set 289
|
|
#define __NR_ioprio_get 290
|
|
#define __NR_inotify_init 291
|
|
#define __NR_inotify_add_watch 292
|
|
#define __NR_inotify_rm_watch 293
|
|
#define __NR_migrate_pages 294
|
|
#define __NR_openat 295
|
|
#define __NR_mkdirat 296
|
|
#define __NR_mknodat 297
|
|
#define __NR_fchownat 298
|
|
#define __NR_futimesat 299
|
|
#define __NR_fstatat64 300
|
|
#define __NR_unlinkat 301
|
|
#define __NR_renameat 302
|
|
#define __NR_linkat 303
|
|
#define __NR_symlinkat 304
|
|
#define __NR_readlinkat 305
|
|
#define __NR_fchmodat 306
|
|
#define __NR_faccessat 307
|
|
#define __NR_pselect6 308
|
|
#define __NR_ppoll 309
|
|
#define __NR_unshare 310
|
|
#define __NR_set_robust_list 311
|
|
#define __NR_get_robust_list 312
|
|
#define __NR_splice 313
|
|
#define __NR_sync_file_range 314
|
|
#define __NR_tee 315
|
|
#define __NR_vmsplice 316
|
|
#define __NR_move_pages 317
|
|
#define __NR_getcpu 318
|
|
#define __NR_epoll_pwait 319
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#define NR_syscalls 320
|
|
#include <linux/err.h>
|
|
|
|
/*
|
|
* user-visible error numbers are in the range -1 - -MAX_ERRNO: see
|
|
* <asm-i386/errno.h>
|
|
*/
|
|
#define __syscall_return(type, res) \
|
|
do { \
|
|
if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \
|
|
errno = -(res); \
|
|
res = -1; \
|
|
} \
|
|
return (type) (res); \
|
|
} while (0)
|
|
|
|
/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
|
|
#define _syscall0(type,name) \
|
|
type name(void) \
|
|
{ \
|
|
long __res; \
|
|
__asm__ volatile ("int $0x80" \
|
|
: "=a" (__res) \
|
|
: "0" (__NR_##name)); \
|
|
__syscall_return(type,__res); \
|
|
}
|
|
|
|
#define _syscall1(type,name,type1,arg1) \
|
|
type name(type1 arg1) \
|
|
{ \
|
|
long __res; \
|
|
__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
|
|
: "=a" (__res) \
|
|
: "0" (__NR_##name),"ri" ((long)(arg1)) : "memory"); \
|
|
__syscall_return(type,__res); \
|
|
}
|
|
|
|
#define _syscall2(type,name,type1,arg1,type2,arg2) \
|
|
type name(type1 arg1,type2 arg2) \
|
|
{ \
|
|
long __res; \
|
|
__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
|
|
: "=a" (__res) \
|
|
: "0" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)) \
|
|
: "memory"); \
|
|
__syscall_return(type,__res); \
|
|
}
|
|
|
|
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
|
|
type name(type1 arg1,type2 arg2,type3 arg3) \
|
|
{ \
|
|
long __res; \
|
|
__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
|
|
: "=a" (__res) \
|
|
: "0" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)), \
|
|
"d" ((long)(arg3)) : "memory"); \
|
|
__syscall_return(type,__res); \
|
|
}
|
|
|
|
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
|
|
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
|
|
{ \
|
|
long __res; \
|
|
__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
|
|
: "=a" (__res) \
|
|
: "0" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)), \
|
|
"d" ((long)(arg3)),"S" ((long)(arg4)) : "memory"); \
|
|
__syscall_return(type,__res); \
|
|
}
|
|
|
|
#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
|
|
type5,arg5) \
|
|
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
|
|
{ \
|
|
long __res; \
|
|
__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; movl %1,%%eax ; " \
|
|
"int $0x80 ; pop %%ebx" \
|
|
: "=a" (__res) \
|
|
: "i" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)), \
|
|
"d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)) \
|
|
: "memory"); \
|
|
__syscall_return(type,__res); \
|
|
}
|
|
|
|
#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
|
|
type5,arg5,type6,arg6) \
|
|
type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
|
|
{ \
|
|
long __res; \
|
|
struct { long __a1; long __a6; } __s = { (long)arg1, (long)arg6 }; \
|
|
__asm__ volatile ("push %%ebp ; push %%ebx ; movl 4(%2),%%ebp ; " \
|
|
"movl 0(%2),%%ebx ; movl %1,%%eax ; int $0x80 ; " \
|
|
"pop %%ebx ; pop %%ebp" \
|
|
: "=a" (__res) \
|
|
: "i" (__NR_##name),"0" ((long)(&__s)),"c" ((long)(arg2)), \
|
|
"d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)) \
|
|
: "memory"); \
|
|
__syscall_return(type,__res); \
|
|
}
|
|
|
|
#define __ARCH_WANT_IPC_PARSE_VERSION
|
|
#define __ARCH_WANT_OLD_READDIR
|
|
#define __ARCH_WANT_OLD_STAT
|
|
#define __ARCH_WANT_STAT64
|
|
#define __ARCH_WANT_SYS_ALARM
|
|
#define __ARCH_WANT_SYS_GETHOSTNAME
|
|
#define __ARCH_WANT_SYS_PAUSE
|
|
#define __ARCH_WANT_SYS_SGETMASK
|
|
#define __ARCH_WANT_SYS_SIGNAL
|
|
#define __ARCH_WANT_SYS_TIME
|
|
#define __ARCH_WANT_SYS_UTIME
|
|
#define __ARCH_WANT_SYS_WAITPID
|
|
#define __ARCH_WANT_SYS_SOCKETCALL
|
|
#define __ARCH_WANT_SYS_FADVISE64
|
|
#define __ARCH_WANT_SYS_GETPGRP
|
|
#define __ARCH_WANT_SYS_LLSEEK
|
|
#define __ARCH_WANT_SYS_NICE
|
|
#define __ARCH_WANT_SYS_OLD_GETRLIMIT
|
|
#define __ARCH_WANT_SYS_OLDUMOUNT
|
|
#define __ARCH_WANT_SYS_SIGPENDING
|
|
#define __ARCH_WANT_SYS_SIGPROCMASK
|
|
#define __ARCH_WANT_SYS_RT_SIGACTION
|
|
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
|
|
|
|
/*
|
|
* "Conditional" syscalls
|
|
*
|
|
* What we want is __attribute__((weak,alias("sys_ni_syscall"))),
|
|
* but it doesn't work on all toolchains, so we just do it by hand
|
|
*/
|
|
#ifndef cond_syscall
|
|
#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
|
|
#endif
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_I386_UNISTD_H_ */
|