#include "linux/linkage.h"
#include "linux/slab.h"
#include "linux/shm.h"
+#include "linux/utsname.h"
+#include "linux/personality.h"
+#include "linux/vs_cvirt.h"
#include "asm/uaccess.h"
#define __FRAME_OFFSETS
#include "asm/ptrace.h"
#include "asm/unistd.h"
#include "asm/prctl.h" /* XXX This should get the constants from libc */
#include "choose-mode.h"
+#include "kern.h"
-asmlinkage long wrap_sys_shmat(int shmid, char __user *shmaddr, int shmflg)
+asmlinkage long sys_uname64(struct new_utsname __user * name)
{
- unsigned long raddr;
-
- return do_shmat(shmid, shmaddr, shmflg, &raddr) ?: (long) raddr;
-}
-
-#ifdef CONFIG_MODE_TT
-extern int modify_ldt(int func, void *ptr, unsigned long bytecount);
-
-long sys_modify_ldt_tt(int func, void *ptr, unsigned long bytecount)
-{
- /* XXX This should check VERIFY_WRITE depending on func, check this
- * in i386 as well.
- */
- if(verify_area(VERIFY_READ, ptr, bytecount))
- return(-EFAULT);
- return(modify_ldt(func, ptr, bytecount));
-}
-#endif
-
-#ifdef CONFIG_MODE_SKAS
-extern int userspace_pid;
-
-#ifndef __NR_mm_indirect
-#define __NR_mm_indirect 241
-#endif
-
-long sys_modify_ldt_skas(int func, void *ptr, unsigned long bytecount)
-{
- unsigned long args[6];
- void *buf;
- int res, n;
-
- buf = kmalloc(bytecount, GFP_KERNEL);
- if(buf == NULL)
- return(-ENOMEM);
-
- res = 0;
-
- switch(func){
- case 1:
- case 0x11:
- res = copy_from_user(buf, ptr, bytecount);
- break;
- }
-
- if(res != 0){
- res = -EFAULT;
- goto out;
- }
-
- args[0] = func;
- args[1] = (unsigned long) buf;
- args[2] = bytecount;
- res = syscall(__NR_mm_indirect, ¤t->mm->context.u,
- __NR_modify_ldt, args);
-
- if(res < 0)
- goto out;
-
- switch(func){
- case 0:
- case 2:
- n = res;
- res = copy_to_user(ptr, buf, n);
- if(res != 0)
- res = -EFAULT;
- else
- res = n;
- break;
- }
-
- out:
- kfree(buf);
- return(res);
-}
-#endif
-
-long sys_modify_ldt(int func, void *ptr, unsigned long bytecount)
-{
- return(CHOOSE_MODE_PROC(sys_modify_ldt_tt, sys_modify_ldt_skas, func,
- ptr, bytecount));
+ int err;
+ down_read(&uts_sem);
+ err = copy_to_user(name, vx_new_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
case ARCH_GET_GS:
ret = arch_prctl(code, (unsigned long) &tmp);
if(!ret)
- ret = put_user(tmp, &addr);
+ ret = put_user(tmp, (long __user *)addr);
break;
default:
ret = -EINVAL;
#ifdef CONFIG_MODE_SKAS
+/* XXX: Must also call arch_prctl in the host, beside saving the segment bases! */
static long arch_prctl_skas(int code, unsigned long addr)
{
long ret = 0;
switch(code){
- case ARCH_SET_GS:
- current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr;
- break;
case ARCH_SET_FS:
current->thread.regs.regs.skas.regs[FS_BASE / sizeof(unsigned long)] = addr;
break;
+ case ARCH_SET_GS:
+ current->thread.regs.regs.skas.regs[GS_BASE / sizeof(unsigned long)] = addr;
+ break;
case ARCH_GET_FS:
- ret = put_user(current->thread.regs.regs.skas.regs[GS / sizeof(unsigned long)], &addr);
+ ret = put_user(current->thread.regs.regs.skas.
+ regs[FS_BASE / sizeof(unsigned long)],
+ (unsigned long __user *)addr);
break;
case ARCH_GET_GS:
- ret = put_user(current->thread.regs.regs.skas.regs[FS / sizeof(unsigned \
-long)], &addr);
+ ret = put_user(current->thread.regs.regs.skas.
+ regs[GS_BASE / sizeof(unsigned long)],
+ (unsigned long __user *)addr);
break;
default:
ret = -EINVAL;
{
long ret;
- /* XXX: normal arch do here this pass, and also pass the regs to
- * do_fork, instead of NULL. Currently the arch-independent code
- * ignores these values, while the UML code (actually it's
- * copy_thread) does the right thing. But this should change,
- probably. */
- /*if (!newsp)
- newsp = UPT_SP(current->thread.regs);*/
+ if (!newsp)
+ newsp = UPT_SP(¤t->thread.regs.regs);
current->thread.forking = 1;
- ret = do_fork(clone_flags, newsp, NULL, 0, parent_tid, child_tid);
+ ret = do_fork(clone_flags, newsp, ¤t->thread.regs, 0, parent_tid,
+ child_tid);
current->thread.forking = 0;
return(ret);
}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
git://git.onelab.eu / linux-2.6.git / blobdiff