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/*
2008-08-02 13:55:55 +04:00
* arch / arm / include / asm / unistd . h
2005-04-17 02:20:36 +04:00
*
* Copyright ( C ) 2001 - 2005 Russell King
*
* This program is free software ; you can redistribute it and / or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation .
*
* Please forward _all_ changes to this file to rmk @ arm . linux . org . uk ,
* no matter what the change is . Thanks !
*/
# ifndef __ASM_ARM_UNISTD_H
# define __ASM_ARM_UNISTD_H
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# define __NR_OABI_SYSCALL_BASE 0x900000
# if defined(__thumb__) || defined(__ARM_EABI__)
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# define __NR_SYSCALL_BASE 0
# else
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# define __NR_SYSCALL_BASE __NR_OABI_SYSCALL_BASE
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# endif
/*
* This file contains the system call numbers .
*/
# define __NR_restart_syscall (__NR_SYSCALL_BASE+ 0)
# define __NR_exit (__NR_SYSCALL_BASE+ 1)
# define __NR_fork (__NR_SYSCALL_BASE+ 2)
# define __NR_read (__NR_SYSCALL_BASE+ 3)
# define __NR_write (__NR_SYSCALL_BASE+ 4)
# define __NR_open (__NR_SYSCALL_BASE+ 5)
# define __NR_close (__NR_SYSCALL_BASE+ 6)
/* 7 was sys_waitpid */
# define __NR_creat (__NR_SYSCALL_BASE+ 8)
# define __NR_link (__NR_SYSCALL_BASE+ 9)
# define __NR_unlink (__NR_SYSCALL_BASE+ 10)
# define __NR_execve (__NR_SYSCALL_BASE+ 11)
# define __NR_chdir (__NR_SYSCALL_BASE+ 12)
# define __NR_time (__NR_SYSCALL_BASE+ 13)
# define __NR_mknod (__NR_SYSCALL_BASE+ 14)
# define __NR_chmod (__NR_SYSCALL_BASE+ 15)
# define __NR_lchown (__NR_SYSCALL_BASE+ 16)
/* 17 was sys_break */
/* 18 was sys_stat */
# define __NR_lseek (__NR_SYSCALL_BASE+ 19)
# define __NR_getpid (__NR_SYSCALL_BASE+ 20)
# define __NR_mount (__NR_SYSCALL_BASE+ 21)
# define __NR_umount (__NR_SYSCALL_BASE+ 22)
# define __NR_setuid (__NR_SYSCALL_BASE+ 23)
# define __NR_getuid (__NR_SYSCALL_BASE+ 24)
# define __NR_stime (__NR_SYSCALL_BASE+ 25)
# define __NR_ptrace (__NR_SYSCALL_BASE+ 26)
# define __NR_alarm (__NR_SYSCALL_BASE+ 27)
/* 28 was sys_fstat */
# define __NR_pause (__NR_SYSCALL_BASE+ 29)
# define __NR_utime (__NR_SYSCALL_BASE+ 30)
/* 31 was sys_stty */
/* 32 was sys_gtty */
# define __NR_access (__NR_SYSCALL_BASE+ 33)
# define __NR_nice (__NR_SYSCALL_BASE+ 34)
/* 35 was sys_ftime */
# define __NR_sync (__NR_SYSCALL_BASE+ 36)
# define __NR_kill (__NR_SYSCALL_BASE+ 37)
# define __NR_rename (__NR_SYSCALL_BASE+ 38)
# define __NR_mkdir (__NR_SYSCALL_BASE+ 39)
# define __NR_rmdir (__NR_SYSCALL_BASE+ 40)
# define __NR_dup (__NR_SYSCALL_BASE+ 41)
# define __NR_pipe (__NR_SYSCALL_BASE+ 42)
# define __NR_times (__NR_SYSCALL_BASE+ 43)
/* 44 was sys_prof */
# define __NR_brk (__NR_SYSCALL_BASE+ 45)
# define __NR_setgid (__NR_SYSCALL_BASE+ 46)
# define __NR_getgid (__NR_SYSCALL_BASE+ 47)
/* 48 was sys_signal */
# define __NR_geteuid (__NR_SYSCALL_BASE+ 49)
# define __NR_getegid (__NR_SYSCALL_BASE+ 50)
# define __NR_acct (__NR_SYSCALL_BASE+ 51)
# define __NR_umount2 (__NR_SYSCALL_BASE+ 52)
/* 53 was sys_lock */
# define __NR_ioctl (__NR_SYSCALL_BASE+ 54)
# define __NR_fcntl (__NR_SYSCALL_BASE+ 55)
/* 56 was sys_mpx */
# define __NR_setpgid (__NR_SYSCALL_BASE+ 57)
/* 58 was sys_ulimit */
/* 59 was sys_olduname */
# define __NR_umask (__NR_SYSCALL_BASE+ 60)
# define __NR_chroot (__NR_SYSCALL_BASE+ 61)
# define __NR_ustat (__NR_SYSCALL_BASE+ 62)
# define __NR_dup2 (__NR_SYSCALL_BASE+ 63)
# define __NR_getppid (__NR_SYSCALL_BASE+ 64)
# define __NR_getpgrp (__NR_SYSCALL_BASE+ 65)
# define __NR_setsid (__NR_SYSCALL_BASE+ 66)
# define __NR_sigaction (__NR_SYSCALL_BASE+ 67)
/* 68 was sys_sgetmask */
/* 69 was sys_ssetmask */
# define __NR_setreuid (__NR_SYSCALL_BASE+ 70)
# define __NR_setregid (__NR_SYSCALL_BASE+ 71)
# define __NR_sigsuspend (__NR_SYSCALL_BASE+ 72)
# define __NR_sigpending (__NR_SYSCALL_BASE+ 73)
# define __NR_sethostname (__NR_SYSCALL_BASE+ 74)
# define __NR_setrlimit (__NR_SYSCALL_BASE+ 75)
# define __NR_getrlimit (__NR_SYSCALL_BASE+ 76) /* Back compat 2GB limited rlimit */
# define __NR_getrusage (__NR_SYSCALL_BASE+ 77)
# define __NR_gettimeofday (__NR_SYSCALL_BASE+ 78)
# define __NR_settimeofday (__NR_SYSCALL_BASE+ 79)
# define __NR_getgroups (__NR_SYSCALL_BASE+ 80)
# define __NR_setgroups (__NR_SYSCALL_BASE+ 81)
# define __NR_select (__NR_SYSCALL_BASE+ 82)
# define __NR_symlink (__NR_SYSCALL_BASE+ 83)
/* 84 was sys_lstat */
# define __NR_readlink (__NR_SYSCALL_BASE+ 85)
# define __NR_uselib (__NR_SYSCALL_BASE+ 86)
# define __NR_swapon (__NR_SYSCALL_BASE+ 87)
# define __NR_reboot (__NR_SYSCALL_BASE+ 88)
# define __NR_readdir (__NR_SYSCALL_BASE+ 89)
# define __NR_mmap (__NR_SYSCALL_BASE+ 90)
# define __NR_munmap (__NR_SYSCALL_BASE+ 91)
# define __NR_truncate (__NR_SYSCALL_BASE+ 92)
# define __NR_ftruncate (__NR_SYSCALL_BASE+ 93)
# define __NR_fchmod (__NR_SYSCALL_BASE+ 94)
# define __NR_fchown (__NR_SYSCALL_BASE+ 95)
# define __NR_getpriority (__NR_SYSCALL_BASE+ 96)
# define __NR_setpriority (__NR_SYSCALL_BASE+ 97)
/* 98 was sys_profil */
# define __NR_statfs (__NR_SYSCALL_BASE+ 99)
# define __NR_fstatfs (__NR_SYSCALL_BASE+100)
/* 101 was sys_ioperm */
# define __NR_socketcall (__NR_SYSCALL_BASE+102)
# define __NR_syslog (__NR_SYSCALL_BASE+103)
# define __NR_setitimer (__NR_SYSCALL_BASE+104)
# define __NR_getitimer (__NR_SYSCALL_BASE+105)
# define __NR_stat (__NR_SYSCALL_BASE+106)
# define __NR_lstat (__NR_SYSCALL_BASE+107)
# define __NR_fstat (__NR_SYSCALL_BASE+108)
/* 109 was sys_uname */
/* 110 was sys_iopl */
# define __NR_vhangup (__NR_SYSCALL_BASE+111)
/* 112 was sys_idle */
# define __NR_syscall (__NR_SYSCALL_BASE+113) /* syscall to call a syscall! */
# define __NR_wait4 (__NR_SYSCALL_BASE+114)
# define __NR_swapoff (__NR_SYSCALL_BASE+115)
# define __NR_sysinfo (__NR_SYSCALL_BASE+116)
# define __NR_ipc (__NR_SYSCALL_BASE+117)
# define __NR_fsync (__NR_SYSCALL_BASE+118)
# define __NR_sigreturn (__NR_SYSCALL_BASE+119)
# define __NR_clone (__NR_SYSCALL_BASE+120)
# define __NR_setdomainname (__NR_SYSCALL_BASE+121)
# define __NR_uname (__NR_SYSCALL_BASE+122)
/* 123 was sys_modify_ldt */
# define __NR_adjtimex (__NR_SYSCALL_BASE+124)
# define __NR_mprotect (__NR_SYSCALL_BASE+125)
# define __NR_sigprocmask (__NR_SYSCALL_BASE+126)
/* 127 was sys_create_module */
# define __NR_init_module (__NR_SYSCALL_BASE+128)
# define __NR_delete_module (__NR_SYSCALL_BASE+129)
/* 130 was sys_get_kernel_syms */
# define __NR_quotactl (__NR_SYSCALL_BASE+131)
# define __NR_getpgid (__NR_SYSCALL_BASE+132)
# define __NR_fchdir (__NR_SYSCALL_BASE+133)
# define __NR_bdflush (__NR_SYSCALL_BASE+134)
# define __NR_sysfs (__NR_SYSCALL_BASE+135)
# define __NR_personality (__NR_SYSCALL_BASE+136)
/* 137 was sys_afs_syscall */
# define __NR_setfsuid (__NR_SYSCALL_BASE+138)
# define __NR_setfsgid (__NR_SYSCALL_BASE+139)
# define __NR__llseek (__NR_SYSCALL_BASE+140)
# define __NR_getdents (__NR_SYSCALL_BASE+141)
# define __NR__newselect (__NR_SYSCALL_BASE+142)
# define __NR_flock (__NR_SYSCALL_BASE+143)
# define __NR_msync (__NR_SYSCALL_BASE+144)
# define __NR_readv (__NR_SYSCALL_BASE+145)
# define __NR_writev (__NR_SYSCALL_BASE+146)
# define __NR_getsid (__NR_SYSCALL_BASE+147)
# define __NR_fdatasync (__NR_SYSCALL_BASE+148)
# define __NR__sysctl (__NR_SYSCALL_BASE+149)
# define __NR_mlock (__NR_SYSCALL_BASE+150)
# define __NR_munlock (__NR_SYSCALL_BASE+151)
# define __NR_mlockall (__NR_SYSCALL_BASE+152)
# define __NR_munlockall (__NR_SYSCALL_BASE+153)
# define __NR_sched_setparam (__NR_SYSCALL_BASE+154)
# define __NR_sched_getparam (__NR_SYSCALL_BASE+155)
# define __NR_sched_setscheduler (__NR_SYSCALL_BASE+156)
# define __NR_sched_getscheduler (__NR_SYSCALL_BASE+157)
# define __NR_sched_yield (__NR_SYSCALL_BASE+158)
# define __NR_sched_get_priority_max (__NR_SYSCALL_BASE+159)
# define __NR_sched_get_priority_min (__NR_SYSCALL_BASE+160)
# define __NR_sched_rr_get_interval (__NR_SYSCALL_BASE+161)
# define __NR_nanosleep (__NR_SYSCALL_BASE+162)
# define __NR_mremap (__NR_SYSCALL_BASE+163)
# define __NR_setresuid (__NR_SYSCALL_BASE+164)
# define __NR_getresuid (__NR_SYSCALL_BASE+165)
/* 166 was sys_vm86 */
/* 167 was sys_query_module */
# define __NR_poll (__NR_SYSCALL_BASE+168)
# define __NR_nfsservctl (__NR_SYSCALL_BASE+169)
# define __NR_setresgid (__NR_SYSCALL_BASE+170)
# define __NR_getresgid (__NR_SYSCALL_BASE+171)
# define __NR_prctl (__NR_SYSCALL_BASE+172)
# define __NR_rt_sigreturn (__NR_SYSCALL_BASE+173)
# define __NR_rt_sigaction (__NR_SYSCALL_BASE+174)
# define __NR_rt_sigprocmask (__NR_SYSCALL_BASE+175)
# define __NR_rt_sigpending (__NR_SYSCALL_BASE+176)
# define __NR_rt_sigtimedwait (__NR_SYSCALL_BASE+177)
# define __NR_rt_sigqueueinfo (__NR_SYSCALL_BASE+178)
# define __NR_rt_sigsuspend (__NR_SYSCALL_BASE+179)
# define __NR_pread64 (__NR_SYSCALL_BASE+180)
# define __NR_pwrite64 (__NR_SYSCALL_BASE+181)
# define __NR_chown (__NR_SYSCALL_BASE+182)
# define __NR_getcwd (__NR_SYSCALL_BASE+183)
# define __NR_capget (__NR_SYSCALL_BASE+184)
# define __NR_capset (__NR_SYSCALL_BASE+185)
# define __NR_sigaltstack (__NR_SYSCALL_BASE+186)
# define __NR_sendfile (__NR_SYSCALL_BASE+187)
/* 188 reserved */
/* 189 reserved */
# define __NR_vfork (__NR_SYSCALL_BASE+190)
# define __NR_ugetrlimit (__NR_SYSCALL_BASE+191) /* SuS compliant getrlimit */
# define __NR_mmap2 (__NR_SYSCALL_BASE+192)
# define __NR_truncate64 (__NR_SYSCALL_BASE+193)
# define __NR_ftruncate64 (__NR_SYSCALL_BASE+194)
# define __NR_stat64 (__NR_SYSCALL_BASE+195)
# define __NR_lstat64 (__NR_SYSCALL_BASE+196)
# define __NR_fstat64 (__NR_SYSCALL_BASE+197)
# define __NR_lchown32 (__NR_SYSCALL_BASE+198)
# define __NR_getuid32 (__NR_SYSCALL_BASE+199)
# define __NR_getgid32 (__NR_SYSCALL_BASE+200)
# define __NR_geteuid32 (__NR_SYSCALL_BASE+201)
# define __NR_getegid32 (__NR_SYSCALL_BASE+202)
# define __NR_setreuid32 (__NR_SYSCALL_BASE+203)
# define __NR_setregid32 (__NR_SYSCALL_BASE+204)
# define __NR_getgroups32 (__NR_SYSCALL_BASE+205)
# define __NR_setgroups32 (__NR_SYSCALL_BASE+206)
# define __NR_fchown32 (__NR_SYSCALL_BASE+207)
# define __NR_setresuid32 (__NR_SYSCALL_BASE+208)
# define __NR_getresuid32 (__NR_SYSCALL_BASE+209)
# define __NR_setresgid32 (__NR_SYSCALL_BASE+210)
# define __NR_getresgid32 (__NR_SYSCALL_BASE+211)
# define __NR_chown32 (__NR_SYSCALL_BASE+212)
# define __NR_setuid32 (__NR_SYSCALL_BASE+213)
# define __NR_setgid32 (__NR_SYSCALL_BASE+214)
# define __NR_setfsuid32 (__NR_SYSCALL_BASE+215)
# define __NR_setfsgid32 (__NR_SYSCALL_BASE+216)
# define __NR_getdents64 (__NR_SYSCALL_BASE+217)
# define __NR_pivot_root (__NR_SYSCALL_BASE+218)
# define __NR_mincore (__NR_SYSCALL_BASE+219)
# define __NR_madvise (__NR_SYSCALL_BASE+220)
# define __NR_fcntl64 (__NR_SYSCALL_BASE+221)
/* 222 for tux */
/* 223 is unused */
# define __NR_gettid (__NR_SYSCALL_BASE+224)
# define __NR_readahead (__NR_SYSCALL_BASE+225)
# define __NR_setxattr (__NR_SYSCALL_BASE+226)
# define __NR_lsetxattr (__NR_SYSCALL_BASE+227)
# define __NR_fsetxattr (__NR_SYSCALL_BASE+228)
# define __NR_getxattr (__NR_SYSCALL_BASE+229)
# define __NR_lgetxattr (__NR_SYSCALL_BASE+230)
# define __NR_fgetxattr (__NR_SYSCALL_BASE+231)
# define __NR_listxattr (__NR_SYSCALL_BASE+232)
# define __NR_llistxattr (__NR_SYSCALL_BASE+233)
# define __NR_flistxattr (__NR_SYSCALL_BASE+234)
# define __NR_removexattr (__NR_SYSCALL_BASE+235)
# define __NR_lremovexattr (__NR_SYSCALL_BASE+236)
# define __NR_fremovexattr (__NR_SYSCALL_BASE+237)
# define __NR_tkill (__NR_SYSCALL_BASE+238)
# define __NR_sendfile64 (__NR_SYSCALL_BASE+239)
# define __NR_futex (__NR_SYSCALL_BASE+240)
# define __NR_sched_setaffinity (__NR_SYSCALL_BASE+241)
# define __NR_sched_getaffinity (__NR_SYSCALL_BASE+242)
# define __NR_io_setup (__NR_SYSCALL_BASE+243)
# define __NR_io_destroy (__NR_SYSCALL_BASE+244)
# define __NR_io_getevents (__NR_SYSCALL_BASE+245)
# define __NR_io_submit (__NR_SYSCALL_BASE+246)
# define __NR_io_cancel (__NR_SYSCALL_BASE+247)
# define __NR_exit_group (__NR_SYSCALL_BASE+248)
# define __NR_lookup_dcookie (__NR_SYSCALL_BASE+249)
# define __NR_epoll_create (__NR_SYSCALL_BASE+250)
# define __NR_epoll_ctl (__NR_SYSCALL_BASE+251)
# define __NR_epoll_wait (__NR_SYSCALL_BASE+252)
# define __NR_remap_file_pages (__NR_SYSCALL_BASE+253)
/* 254 for set_thread_area */
/* 255 for get_thread_area */
# define __NR_set_tid_address (__NR_SYSCALL_BASE+256)
# define __NR_timer_create (__NR_SYSCALL_BASE+257)
# define __NR_timer_settime (__NR_SYSCALL_BASE+258)
# define __NR_timer_gettime (__NR_SYSCALL_BASE+259)
# define __NR_timer_getoverrun (__NR_SYSCALL_BASE+260)
# define __NR_timer_delete (__NR_SYSCALL_BASE+261)
# define __NR_clock_settime (__NR_SYSCALL_BASE+262)
# define __NR_clock_gettime (__NR_SYSCALL_BASE+263)
# define __NR_clock_getres (__NR_SYSCALL_BASE+264)
# define __NR_clock_nanosleep (__NR_SYSCALL_BASE+265)
# define __NR_statfs64 (__NR_SYSCALL_BASE+266)
# define __NR_fstatfs64 (__NR_SYSCALL_BASE+267)
# define __NR_tgkill (__NR_SYSCALL_BASE+268)
# define __NR_utimes (__NR_SYSCALL_BASE+269)
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# define __NR_arm_fadvise64_64 (__NR_SYSCALL_BASE+270)
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# define __NR_pciconfig_iobase (__NR_SYSCALL_BASE+271)
# define __NR_pciconfig_read (__NR_SYSCALL_BASE+272)
# define __NR_pciconfig_write (__NR_SYSCALL_BASE+273)
# define __NR_mq_open (__NR_SYSCALL_BASE+274)
# define __NR_mq_unlink (__NR_SYSCALL_BASE+275)
# define __NR_mq_timedsend (__NR_SYSCALL_BASE+276)
# define __NR_mq_timedreceive (__NR_SYSCALL_BASE+277)
# define __NR_mq_notify (__NR_SYSCALL_BASE+278)
# define __NR_mq_getsetattr (__NR_SYSCALL_BASE+279)
# define __NR_waitid (__NR_SYSCALL_BASE+280)
# define __NR_socket (__NR_SYSCALL_BASE+281)
# define __NR_bind (__NR_SYSCALL_BASE+282)
# define __NR_connect (__NR_SYSCALL_BASE+283)
# define __NR_listen (__NR_SYSCALL_BASE+284)
# define __NR_accept (__NR_SYSCALL_BASE+285)
# define __NR_getsockname (__NR_SYSCALL_BASE+286)
# define __NR_getpeername (__NR_SYSCALL_BASE+287)
# define __NR_socketpair (__NR_SYSCALL_BASE+288)
# define __NR_send (__NR_SYSCALL_BASE+289)
# define __NR_sendto (__NR_SYSCALL_BASE+290)
# define __NR_recv (__NR_SYSCALL_BASE+291)
# define __NR_recvfrom (__NR_SYSCALL_BASE+292)
# define __NR_shutdown (__NR_SYSCALL_BASE+293)
# define __NR_setsockopt (__NR_SYSCALL_BASE+294)
# define __NR_getsockopt (__NR_SYSCALL_BASE+295)
# define __NR_sendmsg (__NR_SYSCALL_BASE+296)
# define __NR_recvmsg (__NR_SYSCALL_BASE+297)
# define __NR_semop (__NR_SYSCALL_BASE+298)
# define __NR_semget (__NR_SYSCALL_BASE+299)
# define __NR_semctl (__NR_SYSCALL_BASE+300)
# define __NR_msgsnd (__NR_SYSCALL_BASE+301)
# define __NR_msgrcv (__NR_SYSCALL_BASE+302)
# define __NR_msgget (__NR_SYSCALL_BASE+303)
# define __NR_msgctl (__NR_SYSCALL_BASE+304)
# define __NR_shmat (__NR_SYSCALL_BASE+305)
# define __NR_shmdt (__NR_SYSCALL_BASE+306)
# define __NR_shmget (__NR_SYSCALL_BASE+307)
# define __NR_shmctl (__NR_SYSCALL_BASE+308)
# define __NR_add_key (__NR_SYSCALL_BASE+309)
# define __NR_request_key (__NR_SYSCALL_BASE+310)
# define __NR_keyctl (__NR_SYSCALL_BASE+311)
# define __NR_semtimedop (__NR_SYSCALL_BASE+312)
# define __NR_vserver (__NR_SYSCALL_BASE+313)
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# define __NR_ioprio_set (__NR_SYSCALL_BASE+314)
# define __NR_ioprio_get (__NR_SYSCALL_BASE+315)
# define __NR_inotify_init (__NR_SYSCALL_BASE+316)
# define __NR_inotify_add_watch (__NR_SYSCALL_BASE+317)
# define __NR_inotify_rm_watch (__NR_SYSCALL_BASE+318)
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# define __NR_mbind (__NR_SYSCALL_BASE+319)
# define __NR_get_mempolicy (__NR_SYSCALL_BASE+320)
# define __NR_set_mempolicy (__NR_SYSCALL_BASE+321)
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# define __NR_openat (__NR_SYSCALL_BASE+322)
# define __NR_mkdirat (__NR_SYSCALL_BASE+323)
# define __NR_mknodat (__NR_SYSCALL_BASE+324)
# define __NR_fchownat (__NR_SYSCALL_BASE+325)
# define __NR_futimesat (__NR_SYSCALL_BASE+326)
# define __NR_fstatat64 (__NR_SYSCALL_BASE+327)
# define __NR_unlinkat (__NR_SYSCALL_BASE+328)
# define __NR_renameat (__NR_SYSCALL_BASE+329)
# define __NR_linkat (__NR_SYSCALL_BASE+330)
# define __NR_symlinkat (__NR_SYSCALL_BASE+331)
# define __NR_readlinkat (__NR_SYSCALL_BASE+332)
# define __NR_fchmodat (__NR_SYSCALL_BASE+333)
# define __NR_faccessat (__NR_SYSCALL_BASE+334)
ARM: 5677/1: ARM support for TIF_RESTORE_SIGMASK/pselect6/ppoll/epoll_pwait
This patch adds support for TIF_RESTORE_SIGMASK to ARM's
signal handling, which allows to hook up the pselect6, ppoll,
and epoll_pwait syscalls on ARM.
Tested here with eabi userspace and a test program with a
deliberate race between a child's exit and the parent's
sigprocmask/select sequence. Using sys_pselect6() instead
of sigprocmask/select reliably prevents the race.
The other arch's support for TIF_RESTORE_SIGMASK has evolved
over time:
In 2.6.16:
- add TIF_RESTORE_SIGMASK which parallels TIF_SIGPENDING
- test both when checking for pending signal [changed later]
- reimplement sys_sigsuspend() to use current->saved_sigmask,
TIF_RESTORE_SIGMASK [changed later], and -ERESTARTNOHAND;
ditto for sys_rt_sigsuspend(), but drop private code and
use common code via __ARCH_WANT_SYS_RT_SIGSUSPEND;
- there are now no "extra" calls to do_signal() so its oldset
parameter is always ¤t->blocked so need not be passed,
also its return value is changed to void
- change handle_signal() to return 0/-errno
- change do_signal() to honor TIF_RESTORE_SIGMASK:
+ get oldset from current->saved_sigmask if TIF_RESTORE_SIGMASK
is set
+ if handle_signal() was successful then clear TIF_RESTORE_SIGMASK
+ if no signal was delivered and TIF_RESTORE_SIGMASK is set then
clear it and restore the sigmask
- hook up sys_pselect6() and sys_ppoll()
In 2.6.19:
- hook up sys_epoll_pwait()
In 2.6.26:
- allow archs to override how TIF_RESTORE_SIGMASK is implemented;
default set_restore_sigmask() sets both TIF_RESTORE_SIGMASK and
TIF_SIGPENDING; archs need now just test TIF_SIGPENDING again
when checking for pending signal work; some archs now implement
TIF_RESTORE_SIGMASK as a secondary/non-atomic thread flag bit
- call set_restore_sigmask() in sys_sigsuspend() instead of setting
TIF_RESTORE_SIGMASK
In 2.6.29-rc:
- kill sys_pselect7() which no arch wanted
So for 2.6.31-rc6/ARM this patch does the following:
- Add TIF_RESTORE_SIGMASK. Use the generic set_restore_sigmask()
which sets both TIF_SIGPENDING and TIF_RESTORE_SIGMASK, so
TIF_RESTORE_SIGMASK need not claim one of the scarce low thread
flags, and existing TIF_SIGPENDING and _TIF_WORK_MASK tests need
not be extended for TIF_RESTORE_SIGMASK.
- sys_sigsuspend() is reimplemented to use current->saved_sigmask
and set_restore_sigmask(), making it identical to most other archs
- The private code for sys_rt_sigsuspend() is removed, instead
generic code supplies it via __ARCH_WANT_SYS_RT_SIGSUSPEND.
- sys_sigsuspend() and sys_rt_sigsuspend() no longer need a pt_regs
parameter, so their assembly code wrappers are removed.
- handle_signal() is changed to return 0 on success or -errno.
- The oldset parameter to do_signal() is now redundant and removed,
and the return value is now also redundant and changed to void.
- do_signal() is changed to honor TIF_RESTORE_SIGMASK:
+ get oldset from current->saved_sigmask if TIF_RESTORE_SIGMASK
is set
+ if handle_signal() was successful then clear TIF_RESTORE_SIGMASK
+ if no signal was delivered and TIF_RESTORE_SIGMASK is set then
clear it and restore the sigmask
- Hook up sys_pselect6, sys_ppoll, and sys_epoll_pwait.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-08-15 15:58:11 +04:00
# define __NR_pselect6 (__NR_SYSCALL_BASE+335)
# define __NR_ppoll (__NR_SYSCALL_BASE+336)
2006-12-17 21:23:10 +03:00
# define __NR_unshare (__NR_SYSCALL_BASE+337)
# define __NR_set_robust_list (__NR_SYSCALL_BASE+338)
# define __NR_get_robust_list (__NR_SYSCALL_BASE+339)
# define __NR_splice (__NR_SYSCALL_BASE+340)
# define __NR_arm_sync_file_range (__NR_SYSCALL_BASE+341)
Introduce fixed sys_sync_file_range2() syscall, implement on PowerPC and ARM
Not all the world is an i386. Many architectures need 64-bit arguments to be
aligned in suitable pairs of registers, and the original
sys_sync_file_range(int, loff_t, loff_t, int) was therefore wasting an
argument register for padding after the first integer. Since we don't
normally have more than 6 arguments for system calls, that left no room for
the final argument on some architectures.
Fix this by introducing sys_sync_file_range2(int, int, loff_t, loff_t) which
all fits nicely. In fact, ARM already had that, but called it
sys_arm_sync_file_range. Move it to fs/sync.c and rename it, then implement
the needed compatibility routine. And stop the missing syscall check from
bitching about the absence of sys_sync_file_range() if we've implemented
sys_sync_file_range2() instead.
Tested on PPC32 and with 32-bit and 64-bit userspace on PPC64.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-28 01:10:09 +04:00
# define __NR_sync_file_range2 __NR_arm_sync_file_range
2006-12-17 21:23:10 +03:00
# define __NR_tee (__NR_SYSCALL_BASE+342)
# define __NR_vmsplice (__NR_SYSCALL_BASE+343)
# define __NR_move_pages (__NR_SYSCALL_BASE+344)
# define __NR_getcpu (__NR_SYSCALL_BASE+345)
ARM: 5677/1: ARM support for TIF_RESTORE_SIGMASK/pselect6/ppoll/epoll_pwait
This patch adds support for TIF_RESTORE_SIGMASK to ARM's
signal handling, which allows to hook up the pselect6, ppoll,
and epoll_pwait syscalls on ARM.
Tested here with eabi userspace and a test program with a
deliberate race between a child's exit and the parent's
sigprocmask/select sequence. Using sys_pselect6() instead
of sigprocmask/select reliably prevents the race.
The other arch's support for TIF_RESTORE_SIGMASK has evolved
over time:
In 2.6.16:
- add TIF_RESTORE_SIGMASK which parallels TIF_SIGPENDING
- test both when checking for pending signal [changed later]
- reimplement sys_sigsuspend() to use current->saved_sigmask,
TIF_RESTORE_SIGMASK [changed later], and -ERESTARTNOHAND;
ditto for sys_rt_sigsuspend(), but drop private code and
use common code via __ARCH_WANT_SYS_RT_SIGSUSPEND;
- there are now no "extra" calls to do_signal() so its oldset
parameter is always ¤t->blocked so need not be passed,
also its return value is changed to void
- change handle_signal() to return 0/-errno
- change do_signal() to honor TIF_RESTORE_SIGMASK:
+ get oldset from current->saved_sigmask if TIF_RESTORE_SIGMASK
is set
+ if handle_signal() was successful then clear TIF_RESTORE_SIGMASK
+ if no signal was delivered and TIF_RESTORE_SIGMASK is set then
clear it and restore the sigmask
- hook up sys_pselect6() and sys_ppoll()
In 2.6.19:
- hook up sys_epoll_pwait()
In 2.6.26:
- allow archs to override how TIF_RESTORE_SIGMASK is implemented;
default set_restore_sigmask() sets both TIF_RESTORE_SIGMASK and
TIF_SIGPENDING; archs need now just test TIF_SIGPENDING again
when checking for pending signal work; some archs now implement
TIF_RESTORE_SIGMASK as a secondary/non-atomic thread flag bit
- call set_restore_sigmask() in sys_sigsuspend() instead of setting
TIF_RESTORE_SIGMASK
In 2.6.29-rc:
- kill sys_pselect7() which no arch wanted
So for 2.6.31-rc6/ARM this patch does the following:
- Add TIF_RESTORE_SIGMASK. Use the generic set_restore_sigmask()
which sets both TIF_SIGPENDING and TIF_RESTORE_SIGMASK, so
TIF_RESTORE_SIGMASK need not claim one of the scarce low thread
flags, and existing TIF_SIGPENDING and _TIF_WORK_MASK tests need
not be extended for TIF_RESTORE_SIGMASK.
- sys_sigsuspend() is reimplemented to use current->saved_sigmask
and set_restore_sigmask(), making it identical to most other archs
- The private code for sys_rt_sigsuspend() is removed, instead
generic code supplies it via __ARCH_WANT_SYS_RT_SIGSUSPEND.
- sys_sigsuspend() and sys_rt_sigsuspend() no longer need a pt_regs
parameter, so their assembly code wrappers are removed.
- handle_signal() is changed to return 0 on success or -errno.
- The oldset parameter to do_signal() is now redundant and removed,
and the return value is now also redundant and changed to void.
- do_signal() is changed to honor TIF_RESTORE_SIGMASK:
+ get oldset from current->saved_sigmask if TIF_RESTORE_SIGMASK
is set
+ if handle_signal() was successful then clear TIF_RESTORE_SIGMASK
+ if no signal was delivered and TIF_RESTORE_SIGMASK is set then
clear it and restore the sigmask
- Hook up sys_pselect6, sys_ppoll, and sys_epoll_pwait.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-08-15 15:58:11 +04:00
# define __NR_epoll_pwait (__NR_SYSCALL_BASE+346)
2007-04-02 01:35:01 +04:00
# define __NR_kexec_load (__NR_SYSCALL_BASE+347)
2007-05-16 15:41:15 +04:00
# define __NR_utimensat (__NR_SYSCALL_BASE+348)
# define __NR_signalfd (__NR_SYSCALL_BASE+349)
2008-03-06 18:22:00 +03:00
# define __NR_timerfd_create (__NR_SYSCALL_BASE+350)
2007-05-16 15:41:15 +04:00
# define __NR_eventfd (__NR_SYSCALL_BASE+351)
2007-09-30 20:37:24 +04:00
# define __NR_fallocate (__NR_SYSCALL_BASE+352)
2008-03-06 18:22:00 +03:00
# define __NR_timerfd_settime (__NR_SYSCALL_BASE+353)
# define __NR_timerfd_gettime (__NR_SYSCALL_BASE+354)
2008-08-12 14:15:02 +04:00
# define __NR_signalfd4 (__NR_SYSCALL_BASE+355)
# define __NR_eventfd2 (__NR_SYSCALL_BASE+356)
# define __NR_epoll_create1 (__NR_SYSCALL_BASE+357)
# define __NR_dup3 (__NR_SYSCALL_BASE+358)
# define __NR_pipe2 (__NR_SYSCALL_BASE+359)
# define __NR_inotify_init1 (__NR_SYSCALL_BASE+360)
2009-04-19 00:26:57 +04:00
# define __NR_preadv (__NR_SYSCALL_BASE+361)
# define __NR_pwritev (__NR_SYSCALL_BASE+362)
2009-06-21 01:25:45 +04:00
# define __NR_rt_tgsigqueueinfo (__NR_SYSCALL_BASE+363)
# define __NR_perf_counter_open (__NR_SYSCALL_BASE+364)
2005-04-17 02:20:36 +04:00
/*
* The following SWIs are ARM private .
*/
# define __ARM_NR_BASE (__NR_SYSCALL_BASE+0x0f0000)
# define __ARM_NR_breakpoint (__ARM_NR_BASE+1)
# define __ARM_NR_cacheflush (__ARM_NR_BASE+2)
# define __ARM_NR_usr26 (__ARM_NR_BASE+3)
# define __ARM_NR_usr32 (__ARM_NR_BASE+4)
2005-04-30 01:08:33 +04:00
# define __ARM_NR_set_tls (__ARM_NR_BASE+5)
2005-04-17 02:20:36 +04:00
2006-04-15 19:10:43 +04:00
/*
* The following syscalls are obsolete and no longer available for EABI .
*/
2006-05-06 01:35:05 +04:00
# if defined(__ARM_EABI__) && !defined(__KERNEL__)
2006-04-15 19:10:43 +04:00
# undef __NR_time
# undef __NR_umount
# undef __NR_stime
# undef __NR_alarm
# undef __NR_utime
# undef __NR_getrlimit
# undef __NR_select
# undef __NR_readdir
# undef __NR_mmap
# undef __NR_socketcall
# undef __NR_syscall
# undef __NR_ipc
# endif
2006-04-29 04:51:47 +04:00
# ifdef __KERNEL__
2005-04-17 02:20:36 +04:00
# define __ARCH_WANT_IPC_PARSE_VERSION
# define __ARCH_WANT_STAT64
# define __ARCH_WANT_SYS_GETHOSTNAME
# define __ARCH_WANT_SYS_PAUSE
# define __ARCH_WANT_SYS_GETPGRP
# define __ARCH_WANT_SYS_LLSEEK
# define __ARCH_WANT_SYS_NICE
# define __ARCH_WANT_SYS_SIGPENDING
# define __ARCH_WANT_SYS_SIGPROCMASK
# define __ARCH_WANT_SYS_RT_SIGACTION
ARM: 5677/1: ARM support for TIF_RESTORE_SIGMASK/pselect6/ppoll/epoll_pwait
This patch adds support for TIF_RESTORE_SIGMASK to ARM's
signal handling, which allows to hook up the pselect6, ppoll,
and epoll_pwait syscalls on ARM.
Tested here with eabi userspace and a test program with a
deliberate race between a child's exit and the parent's
sigprocmask/select sequence. Using sys_pselect6() instead
of sigprocmask/select reliably prevents the race.
The other arch's support for TIF_RESTORE_SIGMASK has evolved
over time:
In 2.6.16:
- add TIF_RESTORE_SIGMASK which parallels TIF_SIGPENDING
- test both when checking for pending signal [changed later]
- reimplement sys_sigsuspend() to use current->saved_sigmask,
TIF_RESTORE_SIGMASK [changed later], and -ERESTARTNOHAND;
ditto for sys_rt_sigsuspend(), but drop private code and
use common code via __ARCH_WANT_SYS_RT_SIGSUSPEND;
- there are now no "extra" calls to do_signal() so its oldset
parameter is always ¤t->blocked so need not be passed,
also its return value is changed to void
- change handle_signal() to return 0/-errno
- change do_signal() to honor TIF_RESTORE_SIGMASK:
+ get oldset from current->saved_sigmask if TIF_RESTORE_SIGMASK
is set
+ if handle_signal() was successful then clear TIF_RESTORE_SIGMASK
+ if no signal was delivered and TIF_RESTORE_SIGMASK is set then
clear it and restore the sigmask
- hook up sys_pselect6() and sys_ppoll()
In 2.6.19:
- hook up sys_epoll_pwait()
In 2.6.26:
- allow archs to override how TIF_RESTORE_SIGMASK is implemented;
default set_restore_sigmask() sets both TIF_RESTORE_SIGMASK and
TIF_SIGPENDING; archs need now just test TIF_SIGPENDING again
when checking for pending signal work; some archs now implement
TIF_RESTORE_SIGMASK as a secondary/non-atomic thread flag bit
- call set_restore_sigmask() in sys_sigsuspend() instead of setting
TIF_RESTORE_SIGMASK
In 2.6.29-rc:
- kill sys_pselect7() which no arch wanted
So for 2.6.31-rc6/ARM this patch does the following:
- Add TIF_RESTORE_SIGMASK. Use the generic set_restore_sigmask()
which sets both TIF_SIGPENDING and TIF_RESTORE_SIGMASK, so
TIF_RESTORE_SIGMASK need not claim one of the scarce low thread
flags, and existing TIF_SIGPENDING and _TIF_WORK_MASK tests need
not be extended for TIF_RESTORE_SIGMASK.
- sys_sigsuspend() is reimplemented to use current->saved_sigmask
and set_restore_sigmask(), making it identical to most other archs
- The private code for sys_rt_sigsuspend() is removed, instead
generic code supplies it via __ARCH_WANT_SYS_RT_SIGSUSPEND.
- sys_sigsuspend() and sys_rt_sigsuspend() no longer need a pt_regs
parameter, so their assembly code wrappers are removed.
- handle_signal() is changed to return 0 on success or -errno.
- The oldset parameter to do_signal() is now redundant and removed,
and the return value is now also redundant and changed to void.
- do_signal() is changed to honor TIF_RESTORE_SIGMASK:
+ get oldset from current->saved_sigmask if TIF_RESTORE_SIGMASK
is set
+ if handle_signal() was successful then clear TIF_RESTORE_SIGMASK
+ if no signal was delivered and TIF_RESTORE_SIGMASK is set then
clear it and restore the sigmask
- Hook up sys_pselect6, sys_ppoll, and sys_epoll_pwait.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-08-15 15:58:11 +04:00
# define __ARCH_WANT_SYS_RT_SIGSUSPEND
2006-01-14 19:36:12 +03:00
# if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
# define __ARCH_WANT_SYS_TIME
# define __ARCH_WANT_SYS_OLDUMOUNT
# define __ARCH_WANT_SYS_ALARM
# define __ARCH_WANT_SYS_UTIME
# define __ARCH_WANT_SYS_OLD_GETRLIMIT
# define __ARCH_WANT_OLD_READDIR
# define __ARCH_WANT_SYS_SOCKETCALL
# endif
2005-04-17 02:20:36 +04:00
/*
* " 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
*/
# define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
2007-05-16 15:41:15 +04:00
/*
* Unimplemented ( or alternatively implemented ) syscalls
*/
# define __IGNORE_fadvise64_64 1
2006-04-29 04:51:47 +04:00
# endif /* __KERNEL__ */
2005-04-17 02:20:36 +04:00
# endif /* __ASM_ARM_UNISTD_H */