mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +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_
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#define _ASM_I386_UNISTD_H_
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/*
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* This file contains the system call numbers.
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*/
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#define __NR_restart_syscall 0
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#define __NR_exit 1
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#define __NR_fork 2
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#define __NR_read 3
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#define __NR_write 4
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#define __NR_open 5
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#define __NR_close 6
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#define __NR_waitpid 7
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#define __NR_creat 8
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#define __NR_link 9
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#define __NR_unlink 10
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#define __NR_execve 11
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#define __NR_chdir 12
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#define __NR_time 13
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#define __NR_mknod 14
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#define __NR_chmod 15
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#define __NR_lchown 16
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#define __NR_break 17
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#define __NR_oldstat 18
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#define __NR_lseek 19
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#define __NR_getpid 20
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#define __NR_mount 21
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#define __NR_umount 22
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#define __NR_setuid 23
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#define __NR_getuid 24
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#define __NR_stime 25
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#define __NR_ptrace 26
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#define __NR_alarm 27
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#define __NR_oldfstat 28
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#define __NR_pause 29
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#define __NR_utime 30
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#define __NR_stty 31
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#define __NR_gtty 32
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#define __NR_access 33
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#define __NR_nice 34
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#define __NR_ftime 35
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#define __NR_sync 36
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#define __NR_kill 37
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#define __NR_rename 38
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#define __NR_mkdir 39
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#define __NR_rmdir 40
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#define __NR_dup 41
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#define __NR_pipe 42
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#define __NR_times 43
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#define __NR_prof 44
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#define __NR_brk 45
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#define __NR_setgid 46
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#define __NR_getgid 47
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#define __NR_signal 48
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#define __NR_geteuid 49
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#define __NR_getegid 50
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#define __NR_acct 51
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#define __NR_umount2 52
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#define __NR_lock 53
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#define __NR_ioctl 54
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#define __NR_fcntl 55
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#define __NR_mpx 56
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#define __NR_setpgid 57
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#define __NR_ulimit 58
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#define __NR_oldolduname 59
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#define __NR_umask 60
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#define __NR_chroot 61
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#define __NR_ustat 62
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#define __NR_dup2 63
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#define __NR_getppid 64
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#define __NR_getpgrp 65
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#define __NR_setsid 66
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#define __NR_sigaction 67
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#define __NR_sgetmask 68
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#define __NR_ssetmask 69
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#define __NR_setreuid 70
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#define __NR_setregid 71
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#define __NR_sigsuspend 72
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#define __NR_sigpending 73
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#define __NR_sethostname 74
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#define __NR_setrlimit 75
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#define __NR_getrlimit 76 /* Back compatible 2Gig limited rlimit */
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#define __NR_getrusage 77
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#define __NR_gettimeofday 78
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#define __NR_settimeofday 79
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#define __NR_getgroups 80
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#define __NR_setgroups 81
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#define __NR_select 82
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#define __NR_symlink 83
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#define __NR_oldlstat 84
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#define __NR_readlink 85
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#define __NR_uselib 86
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#define __NR_swapon 87
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#define __NR_reboot 88
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#define __NR_readdir 89
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#define __NR_mmap 90
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#define __NR_munmap 91
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#define __NR_truncate 92
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#define __NR_ftruncate 93
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#define __NR_fchmod 94
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#define __NR_fchown 95
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#define __NR_getpriority 96
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#define __NR_setpriority 97
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#define __NR_profil 98
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#define __NR_statfs 99
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#define __NR_fstatfs 100
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#define __NR_ioperm 101
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#define __NR_socketcall 102
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#define __NR_syslog 103
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#define __NR_setitimer 104
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#define __NR_getitimer 105
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#define __NR_stat 106
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#define __NR_lstat 107
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#define __NR_fstat 108
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#define __NR_olduname 109
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#define __NR_iopl 110
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#define __NR_vhangup 111
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#define __NR_idle 112
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#define __NR_vm86old 113
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#define __NR_wait4 114
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#define __NR_swapoff 115
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#define __NR_sysinfo 116
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#define __NR_ipc 117
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#define __NR_fsync 118
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#define __NR_sigreturn 119
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#define __NR_clone 120
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#define __NR_setdomainname 121
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#define __NR_uname 122
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#define __NR_modify_ldt 123
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#define __NR_adjtimex 124
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#define __NR_mprotect 125
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#define __NR_sigprocmask 126
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#define __NR_create_module 127
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#define __NR_init_module 128
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#define __NR_delete_module 129
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#define __NR_get_kernel_syms 130
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#define __NR_quotactl 131
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#define __NR_getpgid 132
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#define __NR_fchdir 133
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#define __NR_bdflush 134
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#define __NR_sysfs 135
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#define __NR_personality 136
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#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
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#define __NR_setfsuid 138
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#define __NR_setfsgid 139
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#define __NR__llseek 140
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#define __NR_getdents 141
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#define __NR__newselect 142
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#define __NR_flock 143
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#define __NR_msync 144
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#define __NR_readv 145
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#define __NR_writev 146
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#define __NR_getsid 147
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#define __NR_fdatasync 148
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#define __NR__sysctl 149
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#define __NR_mlock 150
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#define __NR_munlock 151
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#define __NR_mlockall 152
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#define __NR_munlockall 153
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#define __NR_sched_setparam 154
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#define __NR_sched_getparam 155
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#define __NR_sched_setscheduler 156
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#define __NR_sched_getscheduler 157
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#define __NR_sched_yield 158
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#define __NR_sched_get_priority_max 159
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#define __NR_sched_get_priority_min 160
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#define __NR_sched_rr_get_interval 161
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#define __NR_nanosleep 162
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#define __NR_mremap 163
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#define __NR_setresuid 164
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#define __NR_getresuid 165
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#define __NR_vm86 166
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#define __NR_query_module 167
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#define __NR_poll 168
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#define __NR_nfsservctl 169
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#define __NR_setresgid 170
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#define __NR_getresgid 171
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#define __NR_prctl 172
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#define __NR_rt_sigreturn 173
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#define __NR_rt_sigaction 174
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#define __NR_rt_sigprocmask 175
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#define __NR_rt_sigpending 176
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#define __NR_rt_sigtimedwait 177
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#define __NR_rt_sigqueueinfo 178
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#define __NR_rt_sigsuspend 179
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#define __NR_pread64 180
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#define __NR_pwrite64 181
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#define __NR_chown 182
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#define __NR_getcwd 183
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#define __NR_capget 184
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#define __NR_capset 185
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#define __NR_sigaltstack 186
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#define __NR_sendfile 187
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#define __NR_getpmsg 188 /* some people actually want streams */
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#define __NR_putpmsg 189 /* some people actually want streams */
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#define __NR_vfork 190
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#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */
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#define __NR_mmap2 192
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#define __NR_truncate64 193
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#define __NR_ftruncate64 194
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#define __NR_stat64 195
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#define __NR_lstat64 196
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#define __NR_fstat64 197
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#define __NR_lchown32 198
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#define __NR_getuid32 199
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#define __NR_getgid32 200
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#define __NR_geteuid32 201
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#define __NR_getegid32 202
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#define __NR_setreuid32 203
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#define __NR_setregid32 204
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#define __NR_getgroups32 205
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#define __NR_setgroups32 206
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#define __NR_fchown32 207
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#define __NR_setresuid32 208
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#define __NR_getresuid32 209
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#define __NR_setresgid32 210
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#define __NR_getresgid32 211
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#define __NR_chown32 212
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#define __NR_setuid32 213
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#define __NR_setgid32 214
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#define __NR_setfsuid32 215
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#define __NR_setfsgid32 216
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#define __NR_pivot_root 217
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#define __NR_mincore 218
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#define __NR_madvise 219
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#define __NR_madvise1 219 /* delete when C lib stub is removed */
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#define __NR_getdents64 220
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#define __NR_fcntl64 221
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/* 223 is unused */
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#define __NR_gettid 224
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#define __NR_readahead 225
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#define __NR_setxattr 226
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#define __NR_lsetxattr 227
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#define __NR_fsetxattr 228
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#define __NR_getxattr 229
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#define __NR_lgetxattr 230
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#define __NR_fgetxattr 231
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#define __NR_listxattr 232
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#define __NR_llistxattr 233
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#define __NR_flistxattr 234
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#define __NR_removexattr 235
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#define __NR_lremovexattr 236
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#define __NR_fremovexattr 237
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#define __NR_tkill 238
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#define __NR_sendfile64 239
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#define __NR_futex 240
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#define __NR_sched_setaffinity 241
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#define __NR_sched_getaffinity 242
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#define __NR_set_thread_area 243
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#define __NR_get_thread_area 244
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#define __NR_io_setup 245
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#define __NR_io_destroy 246
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#define __NR_io_getevents 247
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#define __NR_io_submit 248
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#define __NR_io_cancel 249
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#define __NR_fadvise64 250
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/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
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#define __NR_exit_group 252
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#define __NR_lookup_dcookie 253
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#define __NR_epoll_create 254
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#define __NR_epoll_ctl 255
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#define __NR_epoll_wait 256
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#define __NR_remap_file_pages 257
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#define __NR_set_tid_address 258
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#define __NR_timer_create 259
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#define __NR_timer_settime (__NR_timer_create+1)
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#define __NR_timer_gettime (__NR_timer_create+2)
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#define __NR_timer_getoverrun (__NR_timer_create+3)
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#define __NR_timer_delete (__NR_timer_create+4)
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#define __NR_clock_settime (__NR_timer_create+5)
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#define __NR_clock_gettime (__NR_timer_create+6)
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#define __NR_clock_getres (__NR_timer_create+7)
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#define __NR_clock_nanosleep (__NR_timer_create+8)
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#define __NR_statfs64 268
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#define __NR_fstatfs64 269
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#define __NR_tgkill 270
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#define __NR_utimes 271
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#define __NR_fadvise64_64 272
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#define __NR_vserver 273
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#define __NR_mbind 274
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#define __NR_get_mempolicy 275
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#define __NR_set_mempolicy 276
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#define __NR_mq_open 277
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#define __NR_mq_unlink (__NR_mq_open+1)
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#define __NR_mq_timedsend (__NR_mq_open+2)
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#define __NR_mq_timedreceive (__NR_mq_open+3)
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#define __NR_mq_notify (__NR_mq_open+4)
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#define __NR_mq_getsetattr (__NR_mq_open+5)
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#define __NR_kexec_load 283
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#define __NR_waitid 284
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/* #define __NR_sys_setaltroot 285 */
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#define __NR_add_key 286
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#define __NR_request_key 287
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#define __NR_keyctl 288
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#define __NR_ioprio_set 289
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#define __NR_ioprio_get 290
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#define __NR_inotify_init 291
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#define __NR_inotify_add_watch 292
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#define __NR_inotify_rm_watch 293
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#define __NR_migrate_pages 294
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#define __NR_openat 295
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#define __NR_mkdirat 296
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#define __NR_mknodat 297
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#define __NR_fchownat 298
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#define __NR_futimesat 299
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#define __NR_fstatat64 300
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#define __NR_unlinkat 301
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#define __NR_renameat 302
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#define __NR_linkat 303
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#define __NR_symlinkat 304
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#define __NR_readlinkat 305
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#define __NR_fchmodat 306
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#define __NR_faccessat 307
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#define __NR_pselect6 308
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#define __NR_ppoll 309
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#define __NR_unshare 310
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#define __NR_set_robust_list 311
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#define __NR_get_robust_list 312
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#define __NR_splice 313
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#define __NR_sync_file_range 314
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#define __NR_tee 315
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#define __NR_vmsplice 316
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#define __NR_move_pages 317
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#define __NR_getcpu 318
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#define __NR_epoll_pwait 319
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#ifdef __KERNEL__
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#define NR_syscalls 320
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#include <linux/err.h>
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/*
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* user-visible error numbers are in the range -1 - -MAX_ERRNO: see
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* <asm-i386/errno.h>
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*/
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#define __syscall_return(type, res) \
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do { \
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if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \
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errno = -(res); \
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res = -1; \
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} \
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return (type) (res); \
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} while (0)
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/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
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#define _syscall0(type,name) \
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type name(void) \
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{ \
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long __res; \
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__asm__ volatile ("int $0x80" \
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: "=a" (__res) \
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: "0" (__NR_##name)); \
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__syscall_return(type,__res); \
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}
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#define _syscall1(type,name,type1,arg1) \
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type name(type1 arg1) \
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{ \
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long __res; \
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__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_##name),"ri" ((long)(arg1)) : "memory"); \
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__syscall_return(type,__res); \
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}
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#define _syscall2(type,name,type1,arg1,type2,arg2) \
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type name(type1 arg1,type2 arg2) \
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{ \
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long __res; \
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__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)) \
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: "memory"); \
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__syscall_return(type,__res); \
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}
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#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
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type name(type1 arg1,type2 arg2,type3 arg3) \
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{ \
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long __res; \
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__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)), \
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"d" ((long)(arg3)) : "memory"); \
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__syscall_return(type,__res); \
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}
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#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
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type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
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{ \
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long __res; \
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__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; int $0x80 ; pop %%ebx" \
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: "=a" (__res) \
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: "0" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)), \
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"d" ((long)(arg3)),"S" ((long)(arg4)) : "memory"); \
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__syscall_return(type,__res); \
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}
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#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
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type5,arg5) \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
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{ \
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long __res; \
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__asm__ volatile ("push %%ebx ; movl %2,%%ebx ; movl %1,%%eax ; " \
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"int $0x80 ; pop %%ebx" \
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: "=a" (__res) \
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: "i" (__NR_##name),"ri" ((long)(arg1)),"c" ((long)(arg2)), \
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"d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)) \
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: "memory"); \
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__syscall_return(type,__res); \
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}
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#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
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type5,arg5,type6,arg6) \
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type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
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{ \
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long __res; \
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struct { long __a1; long __a6; } __s = { (long)arg1, (long)arg6 }; \
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__asm__ volatile ("push %%ebp ; push %%ebx ; movl 4(%2),%%ebp ; " \
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"movl 0(%2),%%ebx ; movl %1,%%eax ; int $0x80 ; " \
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"pop %%ebx ; pop %%ebp" \
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: "=a" (__res) \
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: "i" (__NR_##name),"0" ((long)(&__s)),"c" ((long)(arg2)), \
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"d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)) \
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: "memory"); \
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__syscall_return(type,__res); \
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}
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#define __ARCH_WANT_IPC_PARSE_VERSION
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#define __ARCH_WANT_OLD_READDIR
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#define __ARCH_WANT_OLD_STAT
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#define __ARCH_WANT_STAT64
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#define __ARCH_WANT_SYS_ALARM
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#define __ARCH_WANT_SYS_GETHOSTNAME
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#define __ARCH_WANT_SYS_PAUSE
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#define __ARCH_WANT_SYS_SGETMASK
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#define __ARCH_WANT_SYS_SIGNAL
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#define __ARCH_WANT_SYS_TIME
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#define __ARCH_WANT_SYS_UTIME
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|
#define __ARCH_WANT_SYS_WAITPID
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|
#define __ARCH_WANT_SYS_SOCKETCALL
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#define __ARCH_WANT_SYS_FADVISE64
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|
#define __ARCH_WANT_SYS_GETPGRP
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|
#define __ARCH_WANT_SYS_LLSEEK
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|
#define __ARCH_WANT_SYS_NICE
|
|
#define __ARCH_WANT_SYS_OLD_GETRLIMIT
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|
#define __ARCH_WANT_SYS_OLDUMOUNT
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|
#define __ARCH_WANT_SYS_SIGPENDING
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|
#define __ARCH_WANT_SYS_SIGPROCMASK
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|
#define __ARCH_WANT_SYS_RT_SIGACTION
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|
#define __ARCH_WANT_SYS_RT_SIGSUSPEND
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|
|
|
/*
|
|
* "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")
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|
#endif
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|
|
|
#endif /* __KERNEL__ */
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|
#endif /* _ASM_I386_UNISTD_H_ */
|