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authorRussell King <rmk+kernel@armlinux.org.uk>2016-12-14 14:14:00 +0300
committerRussell King <rmk+kernel@armlinux.org.uk>2016-12-14 14:14:00 +0300
commited141f2890cdb738fc7131367f5fb15632bc3e60 (patch)
treee6fd1b117b7d8968855e7f2d2f209ae102bf0be8 /arch/arm/kernel
parent41884629fe579bde263dfc3d1284d0f5c7af7d1a (diff)
parent219622b7b3dc578799c067f316845ec18dee7d65 (diff)
downloadlinux-ed141f2890cdb738fc7131367f5fb15632bc3e60.tar.xz
Merge branch 'syscalls' into for-linus
Conflicts: arch/arm/include/asm/unistd.h arch/arm/include/uapi/asm/unistd.h arch/arm/kernel/calls.S
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/calls.S415
-rw-r--r--arch/arm/kernel/entry-common.S76
2 files changed, 44 insertions, 447 deletions
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
deleted file mode 100644
index 08030b18f10a..000000000000
--- a/arch/arm/kernel/calls.S
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- * linux/arch/arm/kernel/calls.S
- *
- * Copyright (C) 1995-2005 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.
- *
- * This file is included thrice in entry-common.S
- */
-/* 0 */ CALL(sys_restart_syscall)
- CALL(sys_exit)
- CALL(sys_fork)
- CALL(sys_read)
- CALL(sys_write)
-/* 5 */ CALL(sys_open)
- CALL(sys_close)
- CALL(sys_ni_syscall) /* was sys_waitpid */
- CALL(sys_creat)
- CALL(sys_link)
-/* 10 */ CALL(sys_unlink)
- CALL(sys_execve)
- CALL(sys_chdir)
- CALL(OBSOLETE(sys_time)) /* used by libc4 */
- CALL(sys_mknod)
-/* 15 */ CALL(sys_chmod)
- CALL(sys_lchown16)
- CALL(sys_ni_syscall) /* was sys_break */
- CALL(sys_ni_syscall) /* was sys_stat */
- CALL(sys_lseek)
-/* 20 */ CALL(sys_getpid)
- CALL(sys_mount)
- CALL(OBSOLETE(sys_oldumount)) /* used by libc4 */
- CALL(sys_setuid16)
- CALL(sys_getuid16)
-/* 25 */ CALL(OBSOLETE(sys_stime))
- CALL(sys_ptrace)
- CALL(OBSOLETE(sys_alarm)) /* used by libc4 */
- CALL(sys_ni_syscall) /* was sys_fstat */
- CALL(sys_pause)
-/* 30 */ CALL(OBSOLETE(sys_utime)) /* used by libc4 */
- CALL(sys_ni_syscall) /* was sys_stty */
- CALL(sys_ni_syscall) /* was sys_getty */
- CALL(sys_access)
- CALL(sys_nice)
-/* 35 */ CALL(sys_ni_syscall) /* was sys_ftime */
- CALL(sys_sync)
- CALL(sys_kill)
- CALL(sys_rename)
- CALL(sys_mkdir)
-/* 40 */ CALL(sys_rmdir)
- CALL(sys_dup)
- CALL(sys_pipe)
- CALL(sys_times)
- CALL(sys_ni_syscall) /* was sys_prof */
-/* 45 */ CALL(sys_brk)
- CALL(sys_setgid16)
- CALL(sys_getgid16)
- CALL(sys_ni_syscall) /* was sys_signal */
- CALL(sys_geteuid16)
-/* 50 */ CALL(sys_getegid16)
- CALL(sys_acct)
- CALL(sys_umount)
- CALL(sys_ni_syscall) /* was sys_lock */
- CALL(sys_ioctl)
-/* 55 */ CALL(sys_fcntl)
- CALL(sys_ni_syscall) /* was sys_mpx */
- CALL(sys_setpgid)
- CALL(sys_ni_syscall) /* was sys_ulimit */
- CALL(sys_ni_syscall) /* was sys_olduname */
-/* 60 */ CALL(sys_umask)
- CALL(sys_chroot)
- CALL(sys_ustat)
- CALL(sys_dup2)
- CALL(sys_getppid)
-/* 65 */ CALL(sys_getpgrp)
- CALL(sys_setsid)
- CALL(sys_sigaction)
- CALL(sys_ni_syscall) /* was sys_sgetmask */
- CALL(sys_ni_syscall) /* was sys_ssetmask */
-/* 70 */ CALL(sys_setreuid16)
- CALL(sys_setregid16)
- CALL(sys_sigsuspend)
- CALL(sys_sigpending)
- CALL(sys_sethostname)
-/* 75 */ CALL(sys_setrlimit)
- CALL(OBSOLETE(sys_old_getrlimit)) /* used by libc4 */
- CALL(sys_getrusage)
- CALL(sys_gettimeofday)
- CALL(sys_settimeofday)
-/* 80 */ CALL(sys_getgroups16)
- CALL(sys_setgroups16)
- CALL(OBSOLETE(sys_old_select)) /* used by libc4 */
- CALL(sys_symlink)
- CALL(sys_ni_syscall) /* was sys_lstat */
-/* 85 */ CALL(sys_readlink)
- CALL(sys_uselib)
- CALL(sys_swapon)
- CALL(sys_reboot)
- CALL(OBSOLETE(sys_old_readdir)) /* used by libc4 */
-/* 90 */ CALL(OBSOLETE(sys_old_mmap)) /* used by libc4 */
- CALL(sys_munmap)
- CALL(sys_truncate)
- CALL(sys_ftruncate)
- CALL(sys_fchmod)
-/* 95 */ CALL(sys_fchown16)
- CALL(sys_getpriority)
- CALL(sys_setpriority)
- CALL(sys_ni_syscall) /* was sys_profil */
- CALL(sys_statfs)
-/* 100 */ CALL(sys_fstatfs)
- CALL(sys_ni_syscall) /* sys_ioperm */
- CALL(OBSOLETE(ABI(sys_socketcall, sys_oabi_socketcall)))
- CALL(sys_syslog)
- CALL(sys_setitimer)
-/* 105 */ CALL(sys_getitimer)
- CALL(sys_newstat)
- CALL(sys_newlstat)
- CALL(sys_newfstat)
- CALL(sys_ni_syscall) /* was sys_uname */
-/* 110 */ CALL(sys_ni_syscall) /* was sys_iopl */
- CALL(sys_vhangup)
- CALL(sys_ni_syscall)
- CALL(OBSOLETE(sys_syscall)) /* call a syscall */
- CALL(sys_wait4)
-/* 115 */ CALL(sys_swapoff)
- CALL(sys_sysinfo)
- CALL(OBSOLETE(ABI(sys_ipc, sys_oabi_ipc)))
- CALL(sys_fsync)
- CALL(sys_sigreturn_wrapper)
-/* 120 */ CALL(sys_clone)
- CALL(sys_setdomainname)
- CALL(sys_newuname)
- CALL(sys_ni_syscall) /* modify_ldt */
- CALL(sys_adjtimex)
-/* 125 */ CALL(sys_mprotect)
- CALL(sys_sigprocmask)
- CALL(sys_ni_syscall) /* was sys_create_module */
- CALL(sys_init_module)
- CALL(sys_delete_module)
-/* 130 */ CALL(sys_ni_syscall) /* was sys_get_kernel_syms */
- CALL(sys_quotactl)
- CALL(sys_getpgid)
- CALL(sys_fchdir)
- CALL(sys_bdflush)
-/* 135 */ CALL(sys_sysfs)
- CALL(sys_personality)
- CALL(sys_ni_syscall) /* reserved for afs_syscall */
- CALL(sys_setfsuid16)
- CALL(sys_setfsgid16)
-/* 140 */ CALL(sys_llseek)
- CALL(sys_getdents)
- CALL(sys_select)
- CALL(sys_flock)
- CALL(sys_msync)
-/* 145 */ CALL(sys_readv)
- CALL(sys_writev)
- CALL(sys_getsid)
- CALL(sys_fdatasync)
- CALL(sys_sysctl)
-/* 150 */ CALL(sys_mlock)
- CALL(sys_munlock)
- CALL(sys_mlockall)
- CALL(sys_munlockall)
- CALL(sys_sched_setparam)
-/* 155 */ CALL(sys_sched_getparam)
- CALL(sys_sched_setscheduler)
- CALL(sys_sched_getscheduler)
- CALL(sys_sched_yield)
- CALL(sys_sched_get_priority_max)
-/* 160 */ CALL(sys_sched_get_priority_min)
- CALL(sys_sched_rr_get_interval)
- CALL(sys_nanosleep)
- CALL(sys_mremap)
- CALL(sys_setresuid16)
-/* 165 */ CALL(sys_getresuid16)
- CALL(sys_ni_syscall) /* vm86 */
- CALL(sys_ni_syscall) /* was sys_query_module */
- CALL(sys_poll)
- CALL(sys_ni_syscall) /* was nfsservctl */
-/* 170 */ CALL(sys_setresgid16)
- CALL(sys_getresgid16)
- CALL(sys_prctl)
- CALL(sys_rt_sigreturn_wrapper)
- CALL(sys_rt_sigaction)
-/* 175 */ CALL(sys_rt_sigprocmask)
- CALL(sys_rt_sigpending)
- CALL(sys_rt_sigtimedwait)
- CALL(sys_rt_sigqueueinfo)
- CALL(sys_rt_sigsuspend)
-/* 180 */ CALL(ABI(sys_pread64, sys_oabi_pread64))
- CALL(ABI(sys_pwrite64, sys_oabi_pwrite64))
- CALL(sys_chown16)
- CALL(sys_getcwd)
- CALL(sys_capget)
-/* 185 */ CALL(sys_capset)
- CALL(sys_sigaltstack)
- CALL(sys_sendfile)
- CALL(sys_ni_syscall) /* getpmsg */
- CALL(sys_ni_syscall) /* putpmsg */
-/* 190 */ CALL(sys_vfork)
- CALL(sys_getrlimit)
- CALL(sys_mmap2)
- CALL(ABI(sys_truncate64, sys_oabi_truncate64))
- CALL(ABI(sys_ftruncate64, sys_oabi_ftruncate64))
-/* 195 */ CALL(ABI(sys_stat64, sys_oabi_stat64))
- CALL(ABI(sys_lstat64, sys_oabi_lstat64))
- CALL(ABI(sys_fstat64, sys_oabi_fstat64))
- CALL(sys_lchown)
- CALL(sys_getuid)
-/* 200 */ CALL(sys_getgid)
- CALL(sys_geteuid)
- CALL(sys_getegid)
- CALL(sys_setreuid)
- CALL(sys_setregid)
-/* 205 */ CALL(sys_getgroups)
- CALL(sys_setgroups)
- CALL(sys_fchown)
- CALL(sys_setresuid)
- CALL(sys_getresuid)
-/* 210 */ CALL(sys_setresgid)
- CALL(sys_getresgid)
- CALL(sys_chown)
- CALL(sys_setuid)
- CALL(sys_setgid)
-/* 215 */ CALL(sys_setfsuid)
- CALL(sys_setfsgid)
- CALL(sys_getdents64)
- CALL(sys_pivot_root)
- CALL(sys_mincore)
-/* 220 */ CALL(sys_madvise)
- CALL(ABI(sys_fcntl64, sys_oabi_fcntl64))
- CALL(sys_ni_syscall) /* TUX */
- CALL(sys_ni_syscall)
- CALL(sys_gettid)
-/* 225 */ CALL(ABI(sys_readahead, sys_oabi_readahead))
- CALL(sys_setxattr)
- CALL(sys_lsetxattr)
- CALL(sys_fsetxattr)
- CALL(sys_getxattr)
-/* 230 */ CALL(sys_lgetxattr)
- CALL(sys_fgetxattr)
- CALL(sys_listxattr)
- CALL(sys_llistxattr)
- CALL(sys_flistxattr)
-/* 235 */ CALL(sys_removexattr)
- CALL(sys_lremovexattr)
- CALL(sys_fremovexattr)
- CALL(sys_tkill)
- CALL(sys_sendfile64)
-/* 240 */ CALL(sys_futex)
- CALL(sys_sched_setaffinity)
- CALL(sys_sched_getaffinity)
- CALL(sys_io_setup)
- CALL(sys_io_destroy)
-/* 245 */ CALL(sys_io_getevents)
- CALL(sys_io_submit)
- CALL(sys_io_cancel)
- CALL(sys_exit_group)
- CALL(sys_lookup_dcookie)
-/* 250 */ CALL(sys_epoll_create)
- CALL(ABI(sys_epoll_ctl, sys_oabi_epoll_ctl))
- CALL(ABI(sys_epoll_wait, sys_oabi_epoll_wait))
- CALL(sys_remap_file_pages)
- CALL(sys_ni_syscall) /* sys_set_thread_area */
-/* 255 */ CALL(sys_ni_syscall) /* sys_get_thread_area */
- CALL(sys_set_tid_address)
- CALL(sys_timer_create)
- CALL(sys_timer_settime)
- CALL(sys_timer_gettime)
-/* 260 */ CALL(sys_timer_getoverrun)
- CALL(sys_timer_delete)
- CALL(sys_clock_settime)
- CALL(sys_clock_gettime)
- CALL(sys_clock_getres)
-/* 265 */ CALL(sys_clock_nanosleep)
- CALL(sys_statfs64_wrapper)
- CALL(sys_fstatfs64_wrapper)
- CALL(sys_tgkill)
- CALL(sys_utimes)
-/* 270 */ CALL(sys_arm_fadvise64_64)
- CALL(sys_pciconfig_iobase)
- CALL(sys_pciconfig_read)
- CALL(sys_pciconfig_write)
- CALL(sys_mq_open)
-/* 275 */ CALL(sys_mq_unlink)
- CALL(sys_mq_timedsend)
- CALL(sys_mq_timedreceive)
- CALL(sys_mq_notify)
- CALL(sys_mq_getsetattr)
-/* 280 */ CALL(sys_waitid)
- CALL(sys_socket)
- CALL(ABI(sys_bind, sys_oabi_bind))
- CALL(ABI(sys_connect, sys_oabi_connect))
- CALL(sys_listen)
-/* 285 */ CALL(sys_accept)
- CALL(sys_getsockname)
- CALL(sys_getpeername)
- CALL(sys_socketpair)
- CALL(sys_send)
-/* 290 */ CALL(ABI(sys_sendto, sys_oabi_sendto))
- CALL(sys_recv)
- CALL(sys_recvfrom)
- CALL(sys_shutdown)
- CALL(sys_setsockopt)
-/* 295 */ CALL(sys_getsockopt)
- CALL(ABI(sys_sendmsg, sys_oabi_sendmsg))
- CALL(sys_recvmsg)
- CALL(ABI(sys_semop, sys_oabi_semop))
- CALL(sys_semget)
-/* 300 */ CALL(sys_semctl)
- CALL(sys_msgsnd)
- CALL(sys_msgrcv)
- CALL(sys_msgget)
- CALL(sys_msgctl)
-/* 305 */ CALL(sys_shmat)
- CALL(sys_shmdt)
- CALL(sys_shmget)
- CALL(sys_shmctl)
- CALL(sys_add_key)
-/* 310 */ CALL(sys_request_key)
- CALL(sys_keyctl)
- CALL(ABI(sys_semtimedop, sys_oabi_semtimedop))
-/* vserver */ CALL(sys_ni_syscall)
- CALL(sys_ioprio_set)
-/* 315 */ CALL(sys_ioprio_get)
- CALL(sys_inotify_init)
- CALL(sys_inotify_add_watch)
- CALL(sys_inotify_rm_watch)
- CALL(sys_mbind)
-/* 320 */ CALL(sys_get_mempolicy)
- CALL(sys_set_mempolicy)
- CALL(sys_openat)
- CALL(sys_mkdirat)
- CALL(sys_mknodat)
-/* 325 */ CALL(sys_fchownat)
- CALL(sys_futimesat)
- CALL(ABI(sys_fstatat64, sys_oabi_fstatat64))
- CALL(sys_unlinkat)
- CALL(sys_renameat)
-/* 330 */ CALL(sys_linkat)
- CALL(sys_symlinkat)
- CALL(sys_readlinkat)
- CALL(sys_fchmodat)
- CALL(sys_faccessat)
-/* 335 */ CALL(sys_pselect6)
- CALL(sys_ppoll)
- CALL(sys_unshare)
- CALL(sys_set_robust_list)
- CALL(sys_get_robust_list)
-/* 340 */ CALL(sys_splice)
- CALL(sys_sync_file_range2)
- CALL(sys_tee)
- CALL(sys_vmsplice)
- CALL(sys_move_pages)
-/* 345 */ CALL(sys_getcpu)
- CALL(sys_epoll_pwait)
- CALL(sys_kexec_load)
- CALL(sys_utimensat)
- CALL(sys_signalfd)
-/* 350 */ CALL(sys_timerfd_create)
- CALL(sys_eventfd)
- CALL(sys_fallocate)
- CALL(sys_timerfd_settime)
- CALL(sys_timerfd_gettime)
-/* 355 */ CALL(sys_signalfd4)
- CALL(sys_eventfd2)
- CALL(sys_epoll_create1)
- CALL(sys_dup3)
- CALL(sys_pipe2)
-/* 360 */ CALL(sys_inotify_init1)
- CALL(sys_preadv)
- CALL(sys_pwritev)
- CALL(sys_rt_tgsigqueueinfo)
- CALL(sys_perf_event_open)
-/* 365 */ CALL(sys_recvmmsg)
- CALL(sys_accept4)
- CALL(sys_fanotify_init)
- CALL(sys_fanotify_mark)
- CALL(sys_prlimit64)
-/* 370 */ CALL(sys_name_to_handle_at)
- CALL(sys_open_by_handle_at)
- CALL(sys_clock_adjtime)
- CALL(sys_syncfs)
- CALL(sys_sendmmsg)
-/* 375 */ CALL(sys_setns)
- CALL(sys_process_vm_readv)
- CALL(sys_process_vm_writev)
- CALL(sys_kcmp)
- CALL(sys_finit_module)
-/* 380 */ CALL(sys_sched_setattr)
- CALL(sys_sched_getattr)
- CALL(sys_renameat2)
- CALL(sys_seccomp)
- CALL(sys_getrandom)
-/* 385 */ CALL(sys_memfd_create)
- CALL(sys_bpf)
- CALL(sys_execveat)
- CALL(sys_userfaultfd)
- CALL(sys_membarrier)
-/* 390 */ CALL(sys_mlock2)
- CALL(sys_copy_file_range)
- CALL(sys_preadv2)
- CALL(sys_pwritev2)
- CALL(sys_pkey_mprotect)
-/* 395 */ CALL(sys_pkey_alloc)
- CALL(sys_pkey_free)
-#ifndef syscalls_counted
-.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
-#define syscalls_counted
-#endif
-.rept syscalls_padding
- CALL(sys_ni_syscall)
-.endr
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 10c3283d6c19..eb5cd77bf1d8 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -12,6 +12,11 @@
#include <asm/unistd.h>
#include <asm/ftrace.h>
#include <asm/unwind.h>
+#ifdef CONFIG_AEABI
+#include <asm/unistd-oabi.h>
+#endif
+
+ .equ NR_syscalls, __NR_syscalls
#ifdef CONFIG_NEED_RET_TO_USER
#include <mach/entry-macro.S>
@@ -120,21 +125,6 @@ ENTRY(ret_from_fork)
b ret_slow_syscall
ENDPROC(ret_from_fork)
- .equ NR_syscalls,0
-#define CALL(x) .equ NR_syscalls,NR_syscalls+1
-#include "calls.S"
-
-/*
- * Ensure that the system call table is equal to __NR_syscalls,
- * which is the value the rest of the system sees
- */
-.ifne NR_syscalls - __NR_syscalls
-.error "__NR_syscalls is not equal to the size of the syscall table"
-.endif
-
-#undef CALL
-#define CALL(x) .long x
-
/*=============================================================================
* SWI handler
*-----------------------------------------------------------------------------
@@ -291,22 +281,48 @@ __cr_alignment:
#endif
.ltorg
+ .macro syscall_table_start, sym
+ .equ __sys_nr, 0
+ .type \sym, #object
+ENTRY(\sym)
+ .endm
+
+ .macro syscall, nr, func
+ .ifgt __sys_nr - \nr
+ .error "Duplicated/unorded system call entry"
+ .endif
+ .rept \nr - __sys_nr
+ .long sys_ni_syscall
+ .endr
+ .long \func
+ .equ __sys_nr, \nr + 1
+ .endm
+
+ .macro syscall_table_end, sym
+ .ifgt __sys_nr - __NR_syscalls
+ .error "System call table too big"
+ .endif
+ .rept __NR_syscalls - __sys_nr
+ .long sys_ni_syscall
+ .endr
+ .size \sym, . - \sym
+ .endm
+
+#define NATIVE(nr, func) syscall nr, func
+
/*
* This is the syscall table declaration for native ABI syscalls.
* With EABI a couple syscalls are obsolete and defined as sys_ni_syscall.
*/
-#define ABI(native, compat) native
+ syscall_table_start sys_call_table
+#define COMPAT(nr, native, compat) syscall nr, native
#ifdef CONFIG_AEABI
-#define OBSOLETE(syscall) sys_ni_syscall
+#include <calls-eabi.S>
#else
-#define OBSOLETE(syscall) syscall
+#include <calls-oabi.S>
#endif
-
- .type sys_call_table, #object
-ENTRY(sys_call_table)
-#include "calls.S"
-#undef ABI
-#undef OBSOLETE
+#undef COMPAT
+ syscall_table_end sys_call_table
/*============================================================================
* Special system call wrappers
@@ -407,14 +423,10 @@ ENDPROC(sys_oabi_readahead)
* Let's declare a second syscall table for old ABI binaries
* using the compatibility syscall entries.
*/
-#define ABI(native, compat) compat
-#define OBSOLETE(syscall) syscall
-
- .type sys_oabi_call_table, #object
-ENTRY(sys_oabi_call_table)
-#include "calls.S"
-#undef ABI
-#undef OBSOLETE
+ syscall_table_start sys_oabi_call_table
+#define COMPAT(nr, native, compat) syscall nr, compat
+#include <calls-oabi.S>
+ syscall_table_end sys_oabi_call_table
#endif