diff options
Diffstat (limited to 'arch/score/kernel/sys_score.c')
-rw-r--r-- | arch/score/kernel/sys_score.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/arch/score/kernel/sys_score.c b/arch/score/kernel/sys_score.c index d45cf00a3351..47c20ba46167 100644 --- a/arch/score/kernel/sys_score.c +++ b/arch/score/kernel/sys_score.c @@ -48,92 +48,3 @@ sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, return -EINVAL; return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); } - -asmlinkage long -score_fork(struct pt_regs *regs) -{ - return do_fork(SIGCHLD, regs->regs[0], regs, 0, NULL, NULL); -} - -/* - * Clone a task - this clones the calling program thread. - * This is called indirectly via a small wrapper - */ -asmlinkage long -score_clone(struct pt_regs *regs) -{ - unsigned long clone_flags; - unsigned long newsp; - int __user *parent_tidptr, *child_tidptr; - - clone_flags = regs->regs[4]; - newsp = regs->regs[5]; - if (!newsp) - newsp = regs->regs[0]; - parent_tidptr = (int __user *)regs->regs[6]; - child_tidptr = (int __user *)regs->regs[8]; - - return do_fork(clone_flags, newsp, regs, 0, - parent_tidptr, child_tidptr); -} - -asmlinkage long -score_vfork(struct pt_regs *regs) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, - regs->regs[0], regs, 0, NULL, NULL); -} - -/* - * sys_execve() executes a new program. - * This is called indirectly via a small wrapper - */ -asmlinkage long -score_execve(struct pt_regs *regs) -{ - int error; - struct filename *filename; - - filename = getname((char __user*)regs->regs[4]); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - return error; - - error = do_execve(filename->name, - (const char __user *const __user *)regs->regs[5], - (const char __user *const __user *)regs->regs[6], - regs); - - putname(filename); - return error; -} - -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -asmlinkage -int kernel_execve(const char *filename, - const char *const argv[], - const char *const envp[]) -{ - register unsigned long __r4 asm("r4") = (unsigned long) filename; - register unsigned long __r5 asm("r5") = (unsigned long) argv; - register unsigned long __r6 asm("r6") = (unsigned long) envp; - register unsigned long __r7 asm("r7"); - - __asm__ __volatile__ (" \n" - "ldi r27, %5 \n" - "syscall \n" - "mv %0, r4 \n" - "mv %1, r7 \n" - : "=&r" (__r4), "=r" (__r7) - : "r" (__r4), "r" (__r5), "r" (__r6), "i" (__NR_execve) - : "r8", "r9", "r10", "r11", "r22", "r23", "r24", "r25", - "r26", "r27", "memory"); - - if (__r7 == 0) - return __r4; - - return -__r4; -} |