From d878d6dacee2c862f02da20f7fa3e2c0e8820e71 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 16 Sep 2012 12:06:34 -0400 Subject: m68k: switch to generic sys_execve()/kernel_execve() The tricky part here is that task_pt_regs() on m68k works *only* for process inside do_signal(). However, we need something much simpler - pt_regs of a process inside do_signal() may be at different offsets from the stack bottom, depending on the way we'd entered the kernel, but for a task inside sys_execve() it *is* at constant offset. Moreover, for a kernel thread about to become a userland process the same location is also fine - setting sp to that will leave the kernel stack pointer at the very bottom of the kernel stack when we finally switch to userland. Signed-off-by: Al Viro --- arch/m68k/kernel/process.c | 20 -------------------- 1 file changed, 20 deletions(-) (limited to 'arch/m68k/kernel/process.c') diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c index b3d4760c9750..4e54b4c03081 100644 --- a/arch/m68k/kernel/process.c +++ b/arch/m68k/kernel/process.c @@ -298,26 +298,6 @@ int dump_fpu (struct pt_regs *regs, struct user_m68kfp_struct *fpu) EXPORT_SYMBOL(dump_fpu); #endif /* CONFIG_FPU */ -/* - * sys_execve() executes a new program. - */ -asmlinkage int sys_execve(const char __user *name, - const char __user *const __user *argv, - const char __user *const __user *envp) -{ - int error; - char * filename; - struct pt_regs *regs = (struct pt_regs *) &name; - - filename = getname(name); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - return error; - error = do_execve(filename, argv, envp, regs); - putname(filename); - return error; -} - unsigned long get_wchan(struct task_struct *p) { unsigned long fp, pc; -- cgit v1.2.3