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[PATCH] uml: fix syscall table by including $(SUBARCH)'s one, for x86-64 

Reuse asm-x86-64/unistd.h to build our syscall table, like x86-64 already
does.

Like for i386, we must add some #defines for all the (right!) changes UML does
to x86-64 syscall table.

Note: I noted a bogus:
	[ __NR_sched_yield ] = (syscall_handler_t *) yield,

while doing this patch (which could only be a workaround for some strange bug,
but I would ignore this possibility).  I'm changing this without notice.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Paolo 'Blaisorblade' Giarrusso 2005-05-01 08:58:55 -07:00 committed by Linus Torvalds
parent ddcd6b1757
commit 80f9507886
5 changed files with 73 additions and 318 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
arch/um/include/sysdep-x86_64/syscalls.h
View File

@ -30,51 +30,6 @@ extern syscall_handler_t wrap_sys_shmat;
extern syscall_handler_t sys_modify_ldt;
extern syscall_handler_t sys_arch_prctl;
#define ARCH_SYSCALLS \
[ __NR_mmap ] = (syscall_handler_t *) old_mmap, \
[ __NR_select ] = (syscall_handler_t *) sys_select, \
[ __NR_mincore ] = (syscall_handler_t *) sys_mincore, \
[ __NR_madvise ] = (syscall_handler_t *) sys_madvise, \
[ __NR_shmget ] = (syscall_handler_t *) sys_shmget, \
[ __NR_shmat ] = (syscall_handler_t *) wrap_sys_shmat, \
[ __NR_shmctl ] = (syscall_handler_t *) sys_shmctl, \
[ __NR_semop ] = (syscall_handler_t *) sys_semop, \
[ __NR_semget ] = (syscall_handler_t *) sys_semget, \
[ __NR_semctl ] = (syscall_handler_t *) sys_semctl, \
[ __NR_shmdt ] = (syscall_handler_t *) sys_shmdt, \
[ __NR_msgget ] = (syscall_handler_t *) sys_msgget, \
[ __NR_msgsnd ] = (syscall_handler_t *) sys_msgsnd, \
[ __NR_msgrcv ] = (syscall_handler_t *) sys_msgrcv, \
[ __NR_msgctl ] = (syscall_handler_t *) sys_msgctl, \
[ __NR_pivot_root ] = (syscall_handler_t *) sys_pivot_root, \
[ __NR_tuxcall ] = (syscall_handler_t *) sys_ni_syscall, \
[ __NR_security ] = (syscall_handler_t *) sys_ni_syscall, \
[ __NR_epoll_ctl_old ] = (syscall_handler_t *) sys_ni_syscall, \
[ __NR_epoll_wait_old ] = (syscall_handler_t *) sys_ni_syscall, \
[ __NR_modify_ldt ] = (syscall_handler_t *) sys_modify_ldt, \
[ __NR_arch_prctl ] = (syscall_handler_t *) sys_arch_prctl, \
[ __NR_socket ] = (syscall_handler_t *) sys_socket, \
[ __NR_connect ] = (syscall_handler_t *) sys_connect, \
[ __NR_accept ] = (syscall_handler_t *) sys_accept, \
[ __NR_recvfrom ] = (syscall_handler_t *) sys_recvfrom, \
[ __NR_recvmsg ] = (syscall_handler_t *) sys_recvmsg, \
[ __NR_sendmsg ] = (syscall_handler_t *) sys_sendmsg, \
[ __NR_bind ] = (syscall_handler_t *) sys_bind, \
[ __NR_listen ] = (syscall_handler_t *) sys_listen, \
[ __NR_getsockname ] = (syscall_handler_t *) sys_getsockname, \
[ __NR_getpeername ] = (syscall_handler_t *) sys_getpeername, \
[ __NR_socketpair ] = (syscall_handler_t *) sys_socketpair, \
[ __NR_sendto ] = (syscall_handler_t *) sys_sendto, \
[ __NR_shutdown ] = (syscall_handler_t *) sys_shutdown, \
[ __NR_setsockopt ] = (syscall_handler_t *) sys_setsockopt, \
[ __NR_getsockopt ] = (syscall_handler_t *) sys_getsockopt, \
[ __NR_iopl ] = (syscall_handler_t *) sys_ni_syscall, \
[ __NR_set_thread_area ] = (syscall_handler_t *) sys_ni_syscall, \
[ __NR_get_thread_area ] = (syscall_handler_t *) sys_ni_syscall, \
[ __NR_semtimedop ] = (syscall_handler_t *) sys_semtimedop, \
[ 251 ] = (syscall_handler_t *) sys_ni_syscall,
#define LAST_ARCH_SYSCALL 251
#define NR_syscalls 1024
#define NR_syscalls (__NR_syscall_max + 1)
#endif

2
arch/um/sys-x86_64/Makefile
View File

@ -6,7 +6,7 @@
lib-y = bitops.o bugs.o csum-partial.o delay.o fault.o mem.o memcpy.o \
ptrace.o ptrace_user.o semaphore.o sigcontext.o signal.o \
syscalls.o sysrq.o thunk.o sys_call_table.o
syscalls.o sysrq.o thunk.o syscall_table.o
USER_OBJS := ptrace_user.o sigcontext.o

271
arch/um/sys-x86_64/sys_call_table.c
View File

@ -1,271 +0,0 @@
/*
* Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
* Copyright 2003 PathScale, Inc.
* Licensed under the GPL
*/
#include "linux/config.h"
#include "linux/unistd.h"
#include "linux/sys.h"
#include "linux/swap.h"
#include "linux/syscalls.h"
#include "linux/sysctl.h"
#include "asm/signal.h"
#include "sysdep/syscalls.h"
#include "kern_util.h"
#define LAST_GENERIC_SYSCALL __NR_keyctl
#if LAST_GENERIC_SYSCALL > LAST_ARCH_SYSCALL
#define LAST_SYSCALL LAST_GENERIC_SYSCALL
#else
#define LAST_SYSCALL LAST_ARCH_SYSCALL
#endif
extern syscall_handler_t sys_fork;
extern syscall_handler_t sys_execve;
extern syscall_handler_t um_time;
extern syscall_handler_t um_stime;
extern syscall_handler_t sys_pipe;
extern syscall_handler_t sys_olduname;
extern syscall_handler_t sys_sigaction;
extern syscall_handler_t sys_sigsuspend;
extern syscall_handler_t old_readdir;
extern syscall_handler_t sys_uname;
extern syscall_handler_t sys_ipc;
extern syscall_handler_t sys_sigreturn;
extern syscall_handler_t sys_clone;
extern syscall_handler_t sys_rt_sigreturn;
extern syscall_handler_t sys_sigaltstack;
extern syscall_handler_t sys_vfork;
extern syscall_handler_t old_select;
extern syscall_handler_t sys_modify_ldt;
extern syscall_handler_t sys_rt_sigsuspend;
extern syscall_handler_t sys_mbind;
extern syscall_handler_t sys_get_mempolicy;
extern syscall_handler_t sys_set_mempolicy;
extern syscall_handler_t sys_sys_setaltroot;
/* On X86-64 all syscalls are aware of 32-bit [ug]ids, so I had to fix this!*/
syscall_handler_t *sys_call_table[] = {
[ __NR_restart_syscall ] = (syscall_handler_t *) sys_restart_syscall,
[ __NR_exit ] = (syscall_handler_t *) sys_exit,
[ __NR_fork ] = (syscall_handler_t *) sys_fork,
[ __NR_read ] = (syscall_handler_t *) sys_read,
[ __NR_write ] = (syscall_handler_t *) sys_write,
/* These three are declared differently in asm/unistd.h */
[ __NR_open ] = (syscall_handler_t *) sys_open,
[ __NR_close ] = (syscall_handler_t *) sys_close,
[ __NR_creat ] = (syscall_handler_t *) sys_creat,
[ __NR_link ] = (syscall_handler_t *) sys_link,
[ __NR_unlink ] = (syscall_handler_t *) sys_unlink,
[ __NR_execve ] = (syscall_handler_t *) sys_execve,
/* declared differently in kern_util.h */
[ __NR_chdir ] = (syscall_handler_t *) sys_chdir,
[ __NR_time ] = um_time,
[ __NR_mknod ] = (syscall_handler_t *) sys_mknod,
[ __NR_chmod ] = (syscall_handler_t *) sys_chmod,
[ __NR_lchown ] = (syscall_handler_t *) sys_lchown,
[ __NR_lseek ] = (syscall_handler_t *) sys_lseek,
[ __NR_getpid ] = (syscall_handler_t *) sys_getpid,
[ __NR_mount ] = (syscall_handler_t *) sys_mount,
[ __NR_setuid ] = (syscall_handler_t *) sys_setuid,
[ __NR_getuid ] = (syscall_handler_t *) sys_getuid,
[ __NR_ptrace ] = (syscall_handler_t *) sys_ptrace,
[ __NR_alarm ] = (syscall_handler_t *) sys_alarm,
[ __NR_pause ] = (syscall_handler_t *) sys_pause,
[ __NR_utime ] = (syscall_handler_t *) sys_utime,
[ __NR_access ] = (syscall_handler_t *) sys_access,
[ __NR_sync ] = (syscall_handler_t *) sys_sync,
[ __NR_kill ] = (syscall_handler_t *) sys_kill,
[ __NR_rename ] = (syscall_handler_t *) sys_rename,
[ __NR_mkdir ] = (syscall_handler_t *) sys_mkdir,
[ __NR_rmdir ] = (syscall_handler_t *) sys_rmdir,
/* Declared differently in asm/unistd.h */
[ __NR_dup ] = (syscall_handler_t *) sys_dup,
[ __NR_pipe ] = (syscall_handler_t *) sys_pipe,
[ __NR_times ] = (syscall_handler_t *) sys_times,
[ __NR_brk ] = (syscall_handler_t *) sys_brk,
[ __NR_setgid ] = (syscall_handler_t *) sys_setgid,
[ __NR_getgid ] = (syscall_handler_t *) sys_getgid,
[ __NR_geteuid ] = (syscall_handler_t *) sys_geteuid,
[ __NR_getegid ] = (syscall_handler_t *) sys_getegid,
[ __NR_acct ] = (syscall_handler_t *) sys_acct,
[ __NR_umount2 ] = (syscall_handler_t *) sys_umount,
[ __NR_ioctl ] = (syscall_handler_t *) sys_ioctl,
[ __NR_fcntl ] = (syscall_handler_t *) sys_fcntl,
[ __NR_setpgid ] = (syscall_handler_t *) sys_setpgid,
[ __NR_umask ] = (syscall_handler_t *) sys_umask,
[ __NR_chroot ] = (syscall_handler_t *) sys_chroot,
[ __NR_ustat ] = (syscall_handler_t *) sys_ustat,
[ __NR_dup2 ] = (syscall_handler_t *) sys_dup2,
[ __NR_getppid ] = (syscall_handler_t *) sys_getppid,
[ __NR_getpgrp ] = (syscall_handler_t *) sys_getpgrp,
[ __NR_setsid ] = (syscall_handler_t *) sys_setsid,
[ __NR_setreuid ] = (syscall_handler_t *) sys_setreuid,
[ __NR_setregid ] = (syscall_handler_t *) sys_setregid,
[ __NR_sethostname ] = (syscall_handler_t *) sys_sethostname,
[ __NR_setrlimit ] = (syscall_handler_t *) sys_setrlimit,
[ __NR_getrlimit ] = (syscall_handler_t *) sys_getrlimit,
[ __NR_getrusage ] = (syscall_handler_t *) sys_getrusage,
[ __NR_gettimeofday ] = (syscall_handler_t *) sys_gettimeofday,
[ __NR_settimeofday ] = (syscall_handler_t *) sys_settimeofday,
[ __NR_getgroups ] = (syscall_handler_t *) sys_getgroups,
[ __NR_setgroups ] = (syscall_handler_t *) sys_setgroups,
[ __NR_symlink ] = (syscall_handler_t *) sys_symlink,
[ __NR_readlink ] = (syscall_handler_t *) sys_readlink,
[ __NR_uselib ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_swapon ] = (syscall_handler_t *) sys_swapon,
[ __NR_reboot ] = (syscall_handler_t *) sys_reboot,
[ __NR_munmap ] = (syscall_handler_t *) sys_munmap,
[ __NR_truncate ] = (syscall_handler_t *) sys_truncate,
[ __NR_ftruncate ] = (syscall_handler_t *) sys_ftruncate,
[ __NR_fchmod ] = (syscall_handler_t *) sys_fchmod,
[ __NR_fchown ] = (syscall_handler_t *) sys_fchown,
[ __NR_getpriority ] = (syscall_handler_t *) sys_getpriority,
[ __NR_setpriority ] = (syscall_handler_t *) sys_setpriority,
[ __NR_statfs ] = (syscall_handler_t *) sys_statfs,
[ __NR_fstatfs ] = (syscall_handler_t *) sys_fstatfs,
[ __NR_ioperm ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_syslog ] = (syscall_handler_t *) sys_syslog,
[ __NR_setitimer ] = (syscall_handler_t *) sys_setitimer,
[ __NR_getitimer ] = (syscall_handler_t *) sys_getitimer,
[ __NR_stat ] = (syscall_handler_t *) sys_newstat,
[ __NR_lstat ] = (syscall_handler_t *) sys_newlstat,
[ __NR_fstat ] = (syscall_handler_t *) sys_newfstat,
[ __NR_vhangup ] = (syscall_handler_t *) sys_vhangup,
[ __NR_wait4 ] = (syscall_handler_t *) sys_wait4,
[ __NR_swapoff ] = (syscall_handler_t *) sys_swapoff,
[ __NR_sysinfo ] = (syscall_handler_t *) sys_sysinfo,
[ __NR_fsync ] = (syscall_handler_t *) sys_fsync,
[ __NR_clone ] = (syscall_handler_t *) sys_clone,
[ __NR_setdomainname ] = (syscall_handler_t *) sys_setdomainname,
[ __NR_uname ] = (syscall_handler_t *) sys_newuname,
[ __NR_adjtimex ] = (syscall_handler_t *) sys_adjtimex,
[ __NR_mprotect ] = (syscall_handler_t *) sys_mprotect,
[ __NR_create_module ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_init_module ] = (syscall_handler_t *) sys_init_module,
[ __NR_delete_module ] = (syscall_handler_t *) sys_delete_module,
[ __NR_get_kernel_syms ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_quotactl ] = (syscall_handler_t *) sys_quotactl,
[ __NR_getpgid ] = (syscall_handler_t *) sys_getpgid,
[ __NR_fchdir ] = (syscall_handler_t *) sys_fchdir,
[ __NR_sysfs ] = (syscall_handler_t *) sys_sysfs,
[ __NR_personality ] = (syscall_handler_t *) sys_personality,
[ __NR_afs_syscall ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_setfsuid ] = (syscall_handler_t *) sys_setfsuid,
[ __NR_setfsgid ] = (syscall_handler_t *) sys_setfsgid,
[ __NR_getdents ] = (syscall_handler_t *) sys_getdents,
[ __NR_flock ] = (syscall_handler_t *) sys_flock,
[ __NR_msync ] = (syscall_handler_t *) sys_msync,
[ __NR_readv ] = (syscall_handler_t *) sys_readv,
[ __NR_writev ] = (syscall_handler_t *) sys_writev,
[ __NR_getsid ] = (syscall_handler_t *) sys_getsid,
[ __NR_fdatasync ] = (syscall_handler_t *) sys_fdatasync,
[ __NR__sysctl ] = (syscall_handler_t *) sys_sysctl,
[ __NR_mlock ] = (syscall_handler_t *) sys_mlock,
[ __NR_munlock ] = (syscall_handler_t *) sys_munlock,
[ __NR_mlockall ] = (syscall_handler_t *) sys_mlockall,
[ __NR_munlockall ] = (syscall_handler_t *) sys_munlockall,
[ __NR_sched_setparam ] = (syscall_handler_t *) sys_sched_setparam,
[ __NR_sched_getparam ] = (syscall_handler_t *) sys_sched_getparam,
[ __NR_sched_setscheduler ] = (syscall_handler_t *) sys_sched_setscheduler,
[ __NR_sched_getscheduler ] = (syscall_handler_t *) sys_sched_getscheduler,
[ __NR_sched_yield ] = (syscall_handler_t *) yield,
[ __NR_sched_get_priority_max ] = (syscall_handler_t *) sys_sched_get_priority_max,
[ __NR_sched_get_priority_min ] = (syscall_handler_t *) sys_sched_get_priority_min,
[ __NR_sched_rr_get_interval ] = (syscall_handler_t *) sys_sched_rr_get_interval,
[ __NR_nanosleep ] = (syscall_handler_t *) sys_nanosleep,
[ __NR_mremap ] = (syscall_handler_t *) sys_mremap,
[ __NR_setresuid ] = (syscall_handler_t *) sys_setresuid,
[ __NR_getresuid ] = (syscall_handler_t *) sys_getresuid,
[ __NR_query_module ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_poll ] = (syscall_handler_t *) sys_poll,
[ __NR_nfsservctl ] = (syscall_handler_t *) sys_nfsservctl,
[ __NR_setresgid ] = (syscall_handler_t *) sys_setresgid,
[ __NR_getresgid ] = (syscall_handler_t *) sys_getresgid,
[ __NR_prctl ] = (syscall_handler_t *) sys_prctl,
[ __NR_rt_sigreturn ] = (syscall_handler_t *) sys_rt_sigreturn,
[ __NR_rt_sigaction ] = (syscall_handler_t *) sys_rt_sigaction,
[ __NR_rt_sigprocmask ] = (syscall_handler_t *) sys_rt_sigprocmask,
[ __NR_rt_sigpending ] = (syscall_handler_t *) sys_rt_sigpending,
[ __NR_rt_sigtimedwait ] = (syscall_handler_t *) sys_rt_sigtimedwait,
[ __NR_rt_sigqueueinfo ] = (syscall_handler_t *) sys_rt_sigqueueinfo,
[ __NR_rt_sigsuspend ] = (syscall_handler_t *) sys_rt_sigsuspend,
[ __NR_pread64 ] = (syscall_handler_t *) sys_pread64,
[ __NR_pwrite64 ] = (syscall_handler_t *) sys_pwrite64,
[ __NR_chown ] = (syscall_handler_t *) sys_chown,
[ __NR_getcwd ] = (syscall_handler_t *) sys_getcwd,
[ __NR_capget ] = (syscall_handler_t *) sys_capget,
[ __NR_capset ] = (syscall_handler_t *) sys_capset,
[ __NR_sigaltstack ] = (syscall_handler_t *) sys_sigaltstack,
[ __NR_sendfile ] = (syscall_handler_t *) sys_sendfile64,
[ __NR_getpmsg ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_putpmsg ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_vfork ] = (syscall_handler_t *) sys_vfork,
[ __NR_getdents64 ] = (syscall_handler_t *) sys_getdents64,
[ __NR_gettid ] = (syscall_handler_t *) sys_gettid,
[ __NR_readahead ] = (syscall_handler_t *) sys_readahead,
[ __NR_setxattr ] = (syscall_handler_t *) sys_setxattr,
[ __NR_lsetxattr ] = (syscall_handler_t *) sys_lsetxattr,
[ __NR_fsetxattr ] = (syscall_handler_t *) sys_fsetxattr,
[ __NR_getxattr ] = (syscall_handler_t *) sys_getxattr,
[ __NR_lgetxattr ] = (syscall_handler_t *) sys_lgetxattr,
[ __NR_fgetxattr ] = (syscall_handler_t *) sys_fgetxattr,
[ __NR_listxattr ] = (syscall_handler_t *) sys_listxattr,
[ __NR_llistxattr ] = (syscall_handler_t *) sys_llistxattr,
[ __NR_flistxattr ] = (syscall_handler_t *) sys_flistxattr,
[ __NR_removexattr ] = (syscall_handler_t *) sys_removexattr,
[ __NR_lremovexattr ] = (syscall_handler_t *) sys_lremovexattr,
[ __NR_fremovexattr ] = (syscall_handler_t *) sys_fremovexattr,
[ __NR_tkill ] = (syscall_handler_t *) sys_tkill,
[ __NR_futex ] = (syscall_handler_t *) sys_futex,
[ __NR_sched_setaffinity ] = (syscall_handler_t *) sys_sched_setaffinity,
[ __NR_sched_getaffinity ] = (syscall_handler_t *) sys_sched_getaffinity,
[ __NR_io_setup ] = (syscall_handler_t *) sys_io_setup,
[ __NR_io_destroy ] = (syscall_handler_t *) sys_io_destroy,
[ __NR_io_getevents ] = (syscall_handler_t *) sys_io_getevents,
[ __NR_io_submit ] = (syscall_handler_t *) sys_io_submit,
[ __NR_io_cancel ] = (syscall_handler_t *) sys_io_cancel,
[ __NR_exit_group ] = (syscall_handler_t *) sys_exit_group,
[ __NR_lookup_dcookie ] = (syscall_handler_t *) sys_lookup_dcookie,
[ __NR_epoll_create ] = (syscall_handler_t *) sys_epoll_create,
[ __NR_epoll_ctl ] = (syscall_handler_t *) sys_epoll_ctl,
[ __NR_epoll_wait ] = (syscall_handler_t *) sys_epoll_wait,
[ __NR_remap_file_pages ] = (syscall_handler_t *) sys_remap_file_pages,
[ __NR_set_tid_address ] = (syscall_handler_t *) sys_set_tid_address,
[ __NR_timer_create ] = (syscall_handler_t *) sys_timer_create,
[ __NR_timer_settime ] = (syscall_handler_t *) sys_timer_settime,
[ __NR_timer_gettime ] = (syscall_handler_t *) sys_timer_gettime,
[ __NR_timer_getoverrun ] = (syscall_handler_t *) sys_timer_getoverrun,
[ __NR_timer_delete ] = (syscall_handler_t *) sys_timer_delete,
[ __NR_clock_settime ] = (syscall_handler_t *) sys_clock_settime,
[ __NR_clock_gettime ] = (syscall_handler_t *) sys_clock_gettime,
[ __NR_clock_getres ] = (syscall_handler_t *) sys_clock_getres,
[ __NR_clock_nanosleep ] = (syscall_handler_t *) sys_clock_nanosleep,
[ __NR_tgkill ] = (syscall_handler_t *) sys_tgkill,
[ __NR_utimes ] = (syscall_handler_t *) sys_utimes,
[ __NR_fadvise64 ] = (syscall_handler_t *) sys_fadvise64,
[ __NR_vserver ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_mbind ] = (syscall_handler_t *) sys_mbind,
[ __NR_get_mempolicy ] = (syscall_handler_t *) sys_get_mempolicy,
[ __NR_set_mempolicy ] = (syscall_handler_t *) sys_set_mempolicy,
[ __NR_mq_open ] = (syscall_handler_t *) sys_mq_open,
[ __NR_mq_unlink ] = (syscall_handler_t *) sys_mq_unlink,
[ __NR_mq_timedsend ] = (syscall_handler_t *) sys_mq_timedsend,
[ __NR_mq_timedreceive ] = (syscall_handler_t *) sys_mq_timedreceive,
[ __NR_mq_notify ] = (syscall_handler_t *) sys_mq_notify,
[ __NR_mq_getsetattr ] = (syscall_handler_t *) sys_mq_getsetattr,
[ __NR_kexec_load ] = (syscall_handler_t *) sys_ni_syscall,
[ __NR_waitid ] = (syscall_handler_t *) sys_waitid,
[ __NR_add_key ] = (syscall_handler_t *) sys_add_key,
[ __NR_request_key ] = (syscall_handler_t *) sys_request_key,
[ __NR_keyctl ] = (syscall_handler_t *) sys_keyctl,
ARCH_SYSCALLS
[ LAST_SYSCALL + 1 ... NR_syscalls ] =
(syscall_handler_t *) sys_ni_syscall
};

59
arch/um/sys-x86_64/syscall_table.c Normal file
View File

@ -0,0 +1,59 @@
/* System call table for UML/x86-64, copied from arch/x86_64/kernel/syscall.c
* with some changes for UML. */
#include <linux/linkage.h>
#include <linux/sys.h>
#include <linux/cache.h>
#include <linux/config.h>
#define __NO_STUBS
/* Below you can see, in terms of #define's, the differences between the x86-64
* and the UML syscall table. */
/* Not going to be implemented by UML, since we have no hardware. */
#define stub_iopl sys_ni_syscall
#define sys_ioperm sys_ni_syscall
/* The UML TLS problem. Note that x86_64 does not implement this, so the below
* is needed only for the ia32 compatibility. */
/*#define sys_set_thread_area sys_ni_syscall
#define sys_get_thread_area sys_ni_syscall*/
/* For __NR_time. The x86-64 name hopefully will change from sys_time64 to
* sys_time (since the current situation is bogus). I've sent a patch to cleanup
* this. Remove below the obsoleted line. */
#define sys_time64 um_time
#define sys_time um_time
/* On UML we call it this way ("old" means it's not mmap2) */
#define sys_mmap old_mmap
/* On x86-64 sys_uname is actually sys_newuname plus a compatibility trick.
* See arch/x86_64/kernel/sys_x86_64.c */
#define sys_uname sys_uname64
#define stub_clone sys_clone
#define stub_fork sys_fork
#define stub_vfork sys_vfork
#define stub_execve sys_execve
#define stub_rt_sigsuspend sys_rt_sigsuspend
#define stub_sigaltstack sys_sigaltstack
#define stub_rt_sigreturn sys_rt_sigreturn
#define __SYSCALL(nr, sym) extern asmlinkage void sym(void) ;
#undef _ASM_X86_64_UNISTD_H_
#include <asm-x86_64/unistd.h>
#undef __SYSCALL
#define __SYSCALL(nr, sym) [ nr ] = sym,
#undef _ASM_X86_64_UNISTD_H_
typedef void (*sys_call_ptr_t)(void);
extern void sys_ni_syscall(void);
sys_call_ptr_t sys_call_table[__NR_syscall_max+1] __cacheline_aligned = {
/* Smells like a like a compiler bug -- it doesn't work when the & below is removed. */
[0 ... __NR_syscall_max] = &sys_ni_syscall,
#include <asm-x86_64/unistd.h>
};

12
arch/um/sys-x86_64/syscalls.c
View File

@ -14,6 +14,7 @@
#include "asm/prctl.h" /* XXX This should get the constants from libc */
#include "choose-mode.h"
/* XXX: copied from x86-64: arch/x86_64/kernel/sys_x86_64.c */
asmlinkage long wrap_sys_shmat(int shmid, char __user *shmaddr, int shmflg)
{
unsigned long raddr;
@ -21,6 +22,17 @@ asmlinkage long wrap_sys_shmat(int shmid, char __user *shmaddr, int shmflg)
return do_shmat(shmid, shmaddr, shmflg, &raddr) ?: (long) raddr;
}
asmlinkage long sys_uname64(struct new_utsname __user * name)
{
int err;
down_read(&uts_sem);
err = copy_to_user(name, &system_utsname, sizeof (*name));
up_read(&uts_sem);
if (personality(current->personality) == PER_LINUX32)
err |= copy_to_user(&name->machine, "i686", 5);
return err ? -EFAULT : 0;
}
#ifdef CONFIG_MODE_TT
extern int modify_ldt(int func, void *ptr, unsigned long bytecount);