misc.s

来自「优龙2410linux2.6.8内核源代码」· S 代码 · 共 1,151 行 · 第 1/2 页

	std	r30,-16(r1)
	stdu	r1,-STACK_FRAME_OVERHEAD(r1)
	mr	r29,r3
	mr	r30,r4
	ori	r3,r5,CLONE_VM	/* flags */
	oris	r3,r3,(CLONE_UNTRACED>>16)
	li	r4,0		/* new sp (unused) */
	li	r0,__NR_clone
	sc
	cmpi	0,r3,0		/* parent or child? */
	bne	1f		/* return if parent */
	li	r0,0
	stdu	r0,-STACK_FRAME_OVERHEAD(r1)
	ld	r2,8(r29)
	ld	r29,0(r29)
	mtlr	r29              /* fn addr in lr */
	mr	r3,r30	        /* load arg and call fn */
	blrl
	li	r0,__NR_exit	/* exit after child exits */
        li	r3,0
	sc
1:	addi	r1,r1,STACK_FRAME_OVERHEAD	
	ld	r29,-24(r1)
	ld	r30,-16(r1)
	blr

#ifdef CONFIG_PPC_ISERIES	/* hack hack hack */
#define ppc_rtas	sys_ni_syscall
#endif

/* Why isn't this a) automatic, b) written in 'C'? */	
	.balign 8
_GLOBAL(sys_call_table32)
	.llong .sys_restart_syscall	/* 0 */
	.llong .sys_exit
	.llong .ppc_fork
	.llong .sys_read
	.llong .sys_write
	.llong .sys32_open		/* 5 */
	.llong .sys_close
	.llong .sys32_waitpid
	.llong .sys32_creat
	.llong .sys_link
	.llong .sys_unlink      	/* 10 */
	.llong .sys32_execve
	.llong .sys_chdir
	.llong .sys32_time
	.llong .sys_mknod
	.llong .sys_chmod		/* 15 */
	.llong .sys_lchown
	.llong .sys_ni_syscall		/* old break syscall */
	.llong .sys_ni_syscall		/* old stat syscall */
	.llong .ppc32_lseek
	.llong .sys_getpid              /* 20 */
	.llong .compat_sys_mount
	.llong .sys_oldumount
	.llong .sys_setuid
	.llong .sys_getuid
	.llong .ppc64_sys32_stime       /* 25 */
	.llong .sys32_ptrace
	.llong .sys_alarm
	.llong .sys_ni_syscall		/* old fstat syscall */
	.llong .sys32_pause
	.llong .compat_sys_utime		/* 30 */
	.llong .sys_ni_syscall		/* old stty syscall */
	.llong .sys_ni_syscall		/* old gtty syscall */
	.llong .sys32_access
	.llong .sys32_nice
	.llong .sys_ni_syscall		/* 35 - old ftime syscall */
	.llong .sys_sync
	.llong .sys32_kill
	.llong .sys_rename
	.llong .sys32_mkdir
	.llong .sys_rmdir		/* 40 */
	.llong .sys_dup
	.llong .sys_pipe
	.llong .compat_sys_times
	.llong .sys_ni_syscall		/* old prof syscall */
	.llong .sys_brk			/* 45 */
	.llong .sys_setgid
	.llong .sys_getgid
	.llong .sys_signal
	.llong .sys_geteuid
	.llong .sys_getegid		/* 50 */
	.llong .sys_acct
	.llong .sys_umount
	.llong .sys_ni_syscall		/* old lock syscall */
	.llong .compat_sys_ioctl
	.llong .compat_sys_fcntl		/* 55 */
	.llong .sys_ni_syscall		/* old mpx syscall */
	.llong .sys32_setpgid
	.llong .sys_ni_syscall		/* old ulimit syscall */
	.llong .sys32_olduname
	.llong .sys32_umask		/* 60 */
	.llong .sys_chroot
	.llong .sys_ustat
	.llong .sys_dup2
	.llong .sys_getppid
	.llong .sys_getpgrp	        /* 65 */
	.llong .sys_setsid
	.llong .sys32_sigaction
	.llong .sys_sgetmask
	.llong .sys32_ssetmask
	.llong .sys_setreuid	        /* 70 */
	.llong .sys_setregid
	.llong .ppc32_sigsuspend
	.llong .compat_sys_sigpending
	.llong .sys32_sethostname
	.llong .compat_sys_setrlimit	        /* 75 */
	.llong .compat_sys_old_getrlimit
	.llong .compat_sys_getrusage
	.llong .sys32_gettimeofday
	.llong .sys32_settimeofday
	.llong .sys32_getgroups	        /* 80 */
	.llong .sys32_setgroups
	.llong .sys_ni_syscall		/* old select syscall */
	.llong .sys_symlink
	.llong .sys_ni_syscall		/* old lstat syscall */
	.llong .sys32_readlink	        /* 85 */
	.llong .sys_uselib
	.llong .sys_swapon
	.llong .sys_reboot
	.llong .old32_readdir
	.llong .sys_mmap		/* 90 */
	.llong .sys_munmap
	.llong .sys_truncate
	.llong .sys_ftruncate
	.llong .sys_fchmod
	.llong .sys_fchown              /* 95 */
	.llong .sys32_getpriority
	.llong .sys32_setpriority
	.llong .sys_ni_syscall		/* old profil syscall */
	.llong .compat_sys_statfs
	.llong .compat_sys_fstatfs		/* 100 */
	.llong .sys_ni_syscall		/* old ioperm syscall */
	.llong .compat_sys_socketcall
	.llong .sys32_syslog
	.llong .compat_sys_setitimer
	.llong .compat_sys_getitimer		/* 105 */
	.llong .compat_sys_newstat
	.llong .compat_sys_newlstat
	.llong .compat_sys_newfstat
	.llong .sys_uname
	.llong .sys_ni_syscall		/* 110 old iopl syscall */
	.llong .sys_vhangup
	.llong .sys_ni_syscall		/* old idle syscall */
	.llong .sys_ni_syscall		/* old vm86 syscall */
	.llong .compat_sys_wait4
	.llong .sys_swapoff		/* 115 */
	.llong .sys32_sysinfo
	.llong .sys32_ipc
	.llong .sys_fsync
	.llong .ppc32_sigreturn
	.llong .ppc_clone		/* 120 */
	.llong .sys32_setdomainname
	.llong .ppc64_newuname
	.llong .sys_ni_syscall		/* old modify_ldt syscall */
	.llong .sys32_adjtimex
	.llong .sys_mprotect		/* 125 */
	.llong .compat_sys_sigprocmask
	.llong .sys_ni_syscall		/* old create_module syscall */
	.llong .sys_init_module
	.llong .sys_delete_module
	.llong .sys_ni_syscall		/* 130 old get_kernel_syms syscall */
	.llong .sys_quotactl
	.llong .sys32_getpgid
	.llong .sys_fchdir
	.llong .sys_bdflush
	.llong .sys32_sysfs		/* 135 */
	.llong .ppc64_personality
	.llong .sys_ni_syscall	        /* for afs_syscall */
	.llong .sys_setfsuid
	.llong .sys_setfsgid
	.llong .sys_llseek	        /* 140 */
        .llong .sys32_getdents
	.llong .ppc32_select
	.llong .sys_flock
	.llong .sys_msync
	.llong .compat_sys_readv	/* 145 */
	.llong .compat_sys_writev
	.llong .sys32_getsid
	.llong .sys_fdatasync
	.llong .sys32_sysctl
	.llong .sys_mlock		/* 150 */
	.llong .sys_munlock
	.llong .sys_mlockall
	.llong .sys_munlockall
	.llong .sys32_sched_setparam
	.llong .sys32_sched_getparam	/* 155 */
	.llong .sys32_sched_setscheduler
	.llong .sys32_sched_getscheduler
	.llong .sys_sched_yield
	.llong .sys32_sched_get_priority_max
	.llong .sys32_sched_get_priority_min  /* 160 */
	.llong .sys32_sched_rr_get_interval
	.llong .compat_sys_nanosleep
	.llong .sys_mremap
	.llong .sys_setresuid
	.llong .sys_getresuid	        /* 165 */
	.llong .sys_ni_syscall		/* old query_module syscall */
	.llong .sys_poll
	.llong .compat_sys_nfsservctl
	.llong .sys_setresgid
	.llong .sys_getresgid	        /* 170 */
	.llong .sys32_prctl
	.llong .ppc32_rt_sigreturn
	.llong .sys32_rt_sigaction
	.llong .sys32_rt_sigprocmask
	.llong .sys32_rt_sigpending     /* 175 */
	.llong .sys32_rt_sigtimedwait
	.llong .sys32_rt_sigqueueinfo
	.llong .ppc32_rt_sigsuspend
	.llong .sys32_pread64
	.llong .sys32_pwrite64	        /* 180 */
	.llong .sys_chown
	.llong .sys_getcwd
	.llong .sys_capget
	.llong .sys_capset
	.llong .sys32_sigaltstack	/* 185 */
	.llong .sys32_sendfile
	.llong .sys_ni_syscall		/* reserved for streams1 */
	.llong .sys_ni_syscall		/* reserved for streams2 */
	.llong .ppc_vfork
	.llong .compat_sys_getrlimit	        /* 190 */
	.llong .sys32_readahead
	.llong .sys32_mmap2
	.llong .sys32_truncate64
	.llong .sys32_ftruncate64
	.llong .sys_stat64      	/* 195 */
	.llong .sys_lstat64
	.llong .sys_fstat64
	.llong .sys32_pciconfig_read
	.llong .sys32_pciconfig_write
	.llong .sys32_pciconfig_iobase	/* 200 - pciconfig_iobase */
	.llong .sys_ni_syscall		/* reserved for MacOnLinux */
	.llong .sys_getdents64
	.llong .sys_pivot_root
	.llong .compat_sys_fcntl64
	.llong .sys_madvise		/* 205 */
	.llong .sys_mincore
	.llong .sys_gettid
	.llong .sys_tkill
	.llong .sys_setxattr
	.llong .sys_lsetxattr		/* 210 */
	.llong .sys_fsetxattr
	.llong .sys_getxattr
	.llong .sys_lgetxattr
	.llong .sys_fgetxattr
	.llong .sys_listxattr		/* 215 */
	.llong .sys_llistxattr
	.llong .sys_flistxattr
	.llong .sys_removexattr
	.llong .sys_lremovexattr
	.llong .sys_fremovexattr	/* 220 */
	.llong .compat_sys_futex
	.llong .compat_sys_sched_setaffinity
	.llong .compat_sys_sched_getaffinity
	.llong .sys_ni_syscall
	.llong .sys_ni_syscall		/* 225 - reserved for tux */
	.llong .sys32_sendfile64
	.llong .compat_sys_io_setup
	.llong .sys_io_destroy
	.llong .compat_sys_io_getevents
	.llong .compat_sys_io_submit
	.llong .sys_io_cancel
	.llong .sys_set_tid_address
	.llong .ppc32_fadvise64
	.llong .sys_exit_group
	.llong .ppc32_lookup_dcookie	/* 235 */
	.llong .sys_epoll_create
	.llong .sys_epoll_ctl
	.llong .sys_epoll_wait
	.llong .sys_remap_file_pages
	.llong .ppc32_timer_create	/* 240 */
	.llong .compat_timer_settime
	.llong .compat_timer_gettime
	.llong .sys_timer_getoverrun
	.llong .sys_timer_delete
	.llong .compat_clock_settime	/* 245 */
	.llong .compat_clock_gettime
	.llong .compat_clock_getres
	.llong .compat_clock_nanosleep
	.llong .ppc32_swapcontext
	.llong .sys32_tgkill		/* 250 */
	.llong .sys32_utimes
	.llong .compat_statfs64
	.llong .compat_fstatfs64
	.llong .ppc32_fadvise64_64	/* 32bit only fadvise64_64 */
	.llong .ppc_rtas		/* 255 */
	.llong .sys_ni_syscall		/* 256 reserved for sys_debug_setcontext */
	.llong .sys_ni_syscall		/* 257 reserved for vserver */
	.llong .sys_ni_syscall		/* 258 reserved for new sys_remap_file_pages */
	.llong .sys_ni_syscall		/* 259 reserved for new sys_mbind */
	.llong .sys_ni_syscall		/* 260 reserved for new sys_get_mempolicy */
	.llong .sys_ni_syscall		/* 261 reserved for new sys_set_mempolicy */
	.llong .compat_sys_mq_open
	.llong .sys_mq_unlink
	.llong .compat_sys_mq_timedsend
	.llong .compat_sys_mq_timedreceive /* 265 */
	.llong .compat_sys_mq_notify
	.llong .compat_sys_mq_getsetattr
	.llong .sys_ni_syscall		/* 268 reserved for sys_kexec_load */

	.balign 8
_GLOBAL(sys_call_table)
	.llong .sys_restart_syscall	/* 0 */
	.llong .sys_exit
	.llong .ppc_fork
	.llong .sys_read
	.llong .sys_write
	.llong .sys_open		/* 5 */
	.llong .sys_close
	.llong .sys_waitpid
	.llong .sys_creat
	.llong .sys_link
	.llong .sys_unlink		/* 10 */
	.llong .sys_execve
	.llong .sys_chdir
	.llong .sys64_time
	.llong .sys_mknod
	.llong .sys_chmod		/* 15 */
	.llong .sys_lchown
	.llong .sys_ni_syscall		/* old break syscall */
	.llong .sys_ni_syscall		/* old stat syscall */
	.llong .sys_lseek
	.llong .sys_getpid		/* 20 */
	.llong .sys_mount
	.llong .sys_ni_syscall		/* old umount syscall */
	.llong .sys_setuid
	.llong .sys_getuid
	.llong .ppc64_sys_stime		/* 25 */
	.llong .sys_ptrace
	.llong .sys_alarm
	.llong .sys_ni_syscall		/* old fstat syscall */
	.llong .sys_pause
	.llong .sys_utime		/* 30 */
	.llong .sys_ni_syscall		/* old stty syscall */
	.llong .sys_ni_syscall		/* old gtty syscall */
	.llong .sys_access
	.llong .sys_nice
	.llong .sys_ni_syscall		/* 35 - old ftime syscall */
	.llong .sys_sync
	.llong .sys_kill
	.llong .sys_rename
	.llong .sys_mkdir
	.llong .sys_rmdir		/* 40 */
	.llong .sys_dup
	.llong .sys_pipe
	.llong .sys_times
	.llong .sys_ni_syscall		/* old prof syscall */
	.llong .sys_brk			/* 45 */
	.llong .sys_setgid
	.llong .sys_getgid
	.llong .sys_signal
	.llong .sys_geteuid
	.llong .sys_getegid		/* 50 */
	.llong .sys_acct
	.llong .sys_umount
	.llong .sys_ni_syscall		/* old lock syscall */
	.llong .sys_ioctl
	.llong .sys_fcntl		/* 55 */
	.llong .sys_ni_syscall		/* old mpx syscall */
	.llong .sys_setpgid
	.llong .sys_ni_syscall		/* old ulimit syscall */
	.llong .sys_ni_syscall		/* old uname syscall */
	.llong .sys_umask		/* 60 */
	.llong .sys_chroot
	.llong .sys_ustat
	.llong .sys_dup2
	.llong .sys_getppid
	.llong .sys_getpgrp		/* 65 */
	.llong .sys_setsid
	.llong .sys_ni_syscall
	.llong .sys_sgetmask
	.llong .sys_ssetmask
	.llong .sys_setreuid		/* 70 */
	.llong .sys_setregid
	.llong .sys_ni_syscall
	.llong .sys_ni_syscall
	.llong .sys_sethostname
	.llong .sys_setrlimit		/* 75 */
	.llong .sys_ni_syscall		/* old getrlimit syscall */
	.llong .sys_getrusage
	.llong .sys_gettimeofday
	.llong .sys_settimeofday
	.llong .sys_getgroups		/* 80 */
	.llong .sys_setgroups
	.llong .sys_ni_syscall		/* old select syscall */
	.llong .sys_symlink
	.llong .sys_ni_syscall		/* old lstat syscall */
	.llong .sys_readlink		/* 85 */
	.llong .sys_uselib
	.llong .sys_swapon
	.llong .sys_reboot
	.llong .sys_ni_syscall		/* old readdir syscall */
	.llong .sys_mmap		/* 90 */
	.llong .sys_munmap
	.llong .sys_truncate
	.llong .sys_ftruncate
	.llong .sys_fchmod
	.llong .sys_fchown		/* 95 */
	.llong .sys_getpriority
	.llong .sys_setpriority
	.llong .sys_ni_syscall		/* old profil syscall holder */
	.llong .sys_statfs
	.llong .sys_fstatfs		/* 100 */
	.llong .sys_ni_syscall		/* old ioperm syscall */
	.llong .sys_socketcall
	.llong .sys_syslog
	.llong .sys_setitimer
	.llong .sys_getitimer		/* 105 */
	.llong .sys_newstat
	.llong .sys_newlstat
	.llong .sys_newfstat
	.llong .sys_ni_syscall		/* old uname syscall */
	.llong .sys_ni_syscall		/* 110 old iopl syscall */
	.llong .sys_vhangup
	.llong .sys_ni_syscall		/* old idle syscall */
	.llong .sys_ni_syscall		/* old vm86 syscall */
	.llong .sys_wait4
	.llong .sys_swapoff		/* 115 */
	.llong .sys_sysinfo
	.llong .sys_ipc
	.llong .sys_fsync
	.llong .sys_ni_syscall
	.llong .ppc_clone		/* 120 */
	.llong .sys_setdomainname
	.llong .ppc64_newuname
	.llong .sys_ni_syscall		/* old modify_ldt syscall */
	.llong .sys_adjtimex
	.llong .sys_mprotect		/* 125 */
	.llong .sys_ni_syscall
	.llong .sys_ni_syscall		/* old create_module syscall */
	.llong .sys_init_module
	.llong .sys_delete_module
	.llong .sys_ni_syscall		/* 130 old get_kernel_syms syscall */
	.llong .sys_quotactl
	.llong .sys_getpgid
	.llong .sys_fchdir
	.llong .sys_bdflush
	.llong .sys_sysfs		/* 135 */
	.llong .ppc64_personality
	.llong .sys_ni_syscall	        /* for afs_syscall */
	.llong .sys_setfsuid
	.llong .sys_setfsgid
	.llong .sys_llseek	        /* 140 */
        .llong .sys_getdents
	.llong .sys_select
	.llong .sys_flock
	.llong .sys_msync
	.llong .sys_readv		/* 145 */
	.llong .sys_writev
	.llong .sys_getsid
	.llong .sys_fdatasync
	.llong .sys_sysctl
	.llong .sys_mlock		/* 150 */
	.llong .sys_munlock
	.llong .sys_mlockall
	.llong .sys_munlockall
	.llong .sys_sched_setparam
	.llong .sys_sched_getparam	/* 155 */
	.llong .sys_sched_setscheduler
	.llong .sys_sched_getscheduler
	.llong .sys_sched_yield
	.llong .sys_sched_get_priority_max
	.llong .sys_sched_get_priority_min  /* 160 */
	.llong .sys_sched_rr_get_interval
	.llong .sys_nanosleep
	.llong .sys_mremap
	.llong .sys_setresuid
	.llong .sys_getresuid	        /* 165 */
	.llong .sys_ni_syscall		/* old query_module syscall */
	.llong .sys_poll
	.llong .sys_nfsservctl
	.llong .sys_setresgid
	.llong .sys_getresgid	        /* 170 */
	.llong .sys_prctl
	.llong .ppc64_rt_sigreturn
	.llong .sys_rt_sigaction
	.llong .sys_rt_sigprocmask	
	.llong .sys_rt_sigpending	/* 175 */
	.llong .sys_rt_sigtimedwait
	.llong .sys_rt_sigqueueinfo
	.llong .ppc64_rt_sigsuspend
	.llong .sys_pread64
	.llong .sys_pwrite64	        /* 180 */
	.llong .sys_chown
	.llong .sys_getcwd
	.llong .sys_capget
	.llong .sys_capset
	.llong .sys_sigaltstack	        /* 185 */
	.llong .sys_sendfile64
	.llong .sys_ni_syscall		/* reserved for streams1 */
	.llong .sys_ni_syscall		/* reserved for streams2 */
	.llong .ppc_vfork
	.llong .sys_getrlimit	        /* 190 */
	.llong .sys_readahead
	.llong .sys_ni_syscall		/* 32bit only mmap2 */
	.llong .sys_ni_syscall		/* 32bit only truncate64 */
	.llong .sys_ni_syscall		/* 32bit only ftruncate64 */
	.llong .sys_ni_syscall		/* 195 - 32bit only stat64 */
	.llong .sys_ni_syscall		/* 32bit only lstat64 */
	.llong .sys_ni_syscall		/* 32bit only fstat64 */
	.llong .sys_ni_syscall		/* 32bit only pciconfig_read */
	.llong .sys_ni_syscall		/* 32bit only pciconfig_write */
	.llong .sys_ni_syscall		/* 32bit only pciconfig_iobase */
	.llong .sys_ni_syscall		/* reserved for MacOnLinux */
	.llong .sys_getdents64
	.llong .sys_pivot_root
	.llong .sys_ni_syscall		/* 32bit only fcntl64 */
	.llong .sys_madvise		/* 205 */
	.llong .sys_mincore
	.llong .sys_gettid
	.llong .sys_tkill
	.llong .sys_setxattr
	.llong .sys_lsetxattr		/* 210 */
	.llong .sys_fsetxattr
	.llong .sys_getxattr
	.llong .sys_lgetxattr
	.llong .sys_fgetxattr
	.llong .sys_listxattr		/* 215 */
	.llong .sys_llistxattr
	.llong .sys_flistxattr
	.llong .sys_removexattr
	.llong .sys_lremovexattr
	.llong .sys_fremovexattr	/* 220 */
	.llong .sys_futex
	.llong .sys_sched_setaffinity
	.llong .sys_sched_getaffinity
	.llong .sys_ni_syscall
	.llong .sys_ni_syscall		/* 225 - reserved for tux */
	.llong .sys_ni_syscall		/* 32bit only sendfile64 */
	.llong .sys_io_setup
	.llong .sys_io_destroy
	.llong .sys_io_getevents
	.llong .sys_io_submit		/* 230 */
	.llong .sys_io_cancel
	.llong .sys_set_tid_address
	.llong .sys_fadvise64
	.llong .sys_exit_group
	.llong .sys_lookup_dcookie	/* 235 */
	.llong .sys_epoll_create
	.llong .sys_epoll_ctl
	.llong .sys_epoll_wait
	.llong .sys_remap_file_pages
	.llong .sys_timer_create	/* 240 */
	.llong .sys_timer_settime
	.llong .sys_timer_gettime
	.llong .sys_timer_getoverrun
	.llong .sys_timer_delete
	.llong .sys_clock_settime	/* 245 */
	.llong .sys_clock_gettime
	.llong .sys_clock_getres
	.llong .sys_clock_nanosleep
	.llong .ppc64_swapcontext
	.llong .sys_tgkill		/* 250 */
	.llong .sys_utimes
	.llong .sys_statfs64
	.llong .sys_fstatfs64
	.llong .sys_ni_syscall		/* 32bit only fadvise64_64 */
	.llong .ppc_rtas		/* 255 */
	.llong .sys_ni_syscall		/* 256 reserved for sys_debug_setcontext */
	.llong .sys_ni_syscall		/* 257 reserved for vserver */
	.llong .sys_ni_syscall		/* 258 reserved for new sys_remap_file_pages */
	.llong .sys_ni_syscall		/* 259 reserved for new sys_mbind */
	.llong .sys_ni_syscall		/* 260 reserved for new sys_get_mempolicy */
	.llong .sys_ni_syscall		/* 261 reserved for new sys_set_mempolicy */
	.llong .sys_mq_open
	.llong .sys_mq_unlink
	.llong .sys_mq_timedsend
	.llong .sys_mq_timedreceive	/* 265 */
	.llong .sys_mq_notify
	.llong .sys_mq_getsetattr
	.llong .sys_ni_syscall		/* 268 reserved for sys_kexec_load */