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powerpc: switch to generic fork/clone/vfork 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-10-26 23:08:25 -04:00
parent 38a61b6b4a
commit 0bcfe54049
4 changed files with 4 additions and 32 deletions
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1
arch/powerpc/Kconfig
View File

@ -145,6 +145,7 @@ config PPC
select HAVE_MOD_ARCH_SPECIFIC
select MODULES_USE_ELF_RELA
select GENERIC_KERNEL_EXECVE
select CLONE_BACKWARDS
config EARLY_PRINTK
bool

9
arch/powerpc/include/asm/syscalls.h
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@ -17,15 +17,6 @@ asmlinkage unsigned long sys_mmap(unsigned long addr, size_t len,
asmlinkage unsigned long sys_mmap2(unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff);
asmlinkage int sys_clone(unsigned long clone_flags, unsigned long usp,
int __user *parent_tidp, void __user *child_threadptr,
int __user *child_tidp, int p6, struct pt_regs *regs);
asmlinkage int sys_fork(unsigned long p1, unsigned long p2,
unsigned long p3, unsigned long p4, unsigned long p5,
unsigned long p6, struct pt_regs *regs);
asmlinkage int sys_vfork(unsigned long p1, unsigned long p2,
unsigned long p3, unsigned long p4, unsigned long p5,
unsigned long p6, struct pt_regs *regs);
asmlinkage long sys_pipe(int __user *fildes);
asmlinkage long sys_pipe2(int __user *fildes, int flags);
asmlinkage long sys_rt_sigaction(int sig,

3
arch/powerpc/include/asm/unistd.h
View File

@ -56,6 +56,9 @@
#define __ARCH_WANT_COMPAT_SYS_SENDFILE
#endif
#define __ARCH_WANT_SYS_EXECVE
#define __ARCH_WANT_SYS_FORK
#define __ARCH_WANT_SYS_VFORK
#define __ARCH_WANT_SYS_CLONE
/*
* "Conditional" syscalls

23
arch/powerpc/kernel/process.c
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@ -1026,29 +1026,6 @@ int get_unalign_ctl(struct task_struct *tsk, unsigned long adr)
return put_user(tsk->thread.align_ctl, (unsigned int __user *)adr);
}
int sys_clone(unsigned long clone_flags, unsigned long usp,
int __user *parent_tidp, void __user *child_threadptr,
int __user *child_tidp, int p6,
struct pt_regs *regs)
{
return do_fork(clone_flags, usp, regs, 0, parent_tidp, child_tidp);
}
int sys_fork(unsigned long p1, unsigned long p2, unsigned long p3,
unsigned long p4, unsigned long p5, unsigned long p6,
struct pt_regs *regs)
{
return do_fork(SIGCHLD, 0, regs, 0, NULL, NULL);
}
int sys_vfork(unsigned long p1, unsigned long p2, unsigned long p3,
unsigned long p4, unsigned long p5, unsigned long p6,
struct pt_regs *regs)
{
return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, 0,
regs, 0, NULL, NULL);
}
static inline int valid_irq_stack(unsigned long sp, struct task_struct *p,
unsigned long nbytes)
{