cb1dcc0ff4
This fixes:
incompatible pointer type: => 89
arch/um/kernel/exec.c: warning: passing argument 2 of 'execve1' from
incompatible pointer type: => 69, 85
arch/um/kernel/exec.c: warning: passing argument 3 of 'execve1' from
incompatible pointer type: => 69, 85
which was introduced by d7627467b7 ("Make do_execve() take a const
filename pointer")
Signed-off-by: Richard Weinberger <richard@nod.at>
Cc: David Howells <dhowells@redhat.com>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
91 lines
2.0 KiB
C
91 lines
2.0 KiB
C
/*
|
|
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#include "linux/stddef.h"
|
|
#include "linux/fs.h"
|
|
#include "linux/smp_lock.h"
|
|
#include "linux/ptrace.h"
|
|
#include "linux/sched.h"
|
|
#include "linux/slab.h"
|
|
#include "asm/current.h"
|
|
#include "asm/processor.h"
|
|
#include "asm/uaccess.h"
|
|
#include "as-layout.h"
|
|
#include "mem_user.h"
|
|
#include "skas.h"
|
|
#include "os.h"
|
|
#include "internal.h"
|
|
|
|
void flush_thread(void)
|
|
{
|
|
void *data = NULL;
|
|
int ret;
|
|
|
|
arch_flush_thread(¤t->thread.arch);
|
|
|
|
ret = unmap(¤t->mm->context.id, 0, STUB_START, 0, &data);
|
|
ret = ret || unmap(¤t->mm->context.id, STUB_END,
|
|
host_task_size - STUB_END, 1, &data);
|
|
if (ret) {
|
|
printk(KERN_ERR "flush_thread - clearing address space failed, "
|
|
"err = %d\n", ret);
|
|
force_sig(SIGKILL, current);
|
|
}
|
|
|
|
__switch_mm(¤t->mm->context.id);
|
|
}
|
|
|
|
void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
|
|
{
|
|
set_fs(USER_DS);
|
|
PT_REGS_IP(regs) = eip;
|
|
PT_REGS_SP(regs) = esp;
|
|
}
|
|
|
|
static long execve1(const char *file,
|
|
const char __user *const __user *argv,
|
|
const char __user *const __user *env)
|
|
{
|
|
long error;
|
|
|
|
error = do_execve(file, argv, env, ¤t->thread.regs);
|
|
if (error == 0) {
|
|
task_lock(current);
|
|
current->ptrace &= ~PT_DTRACE;
|
|
#ifdef SUBARCH_EXECVE1
|
|
SUBARCH_EXECVE1(¤t->thread.regs.regs);
|
|
#endif
|
|
task_unlock(current);
|
|
}
|
|
return error;
|
|
}
|
|
|
|
long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
|
|
{
|
|
long err;
|
|
|
|
err = execve1(file, argv, env);
|
|
if (!err)
|
|
UML_LONGJMP(current->thread.exec_buf, 1);
|
|
return err;
|
|
}
|
|
|
|
long sys_execve(const char __user *file, const char __user *const __user *argv,
|
|
const char __user *const __user *env)
|
|
{
|
|
long error;
|
|
char *filename;
|
|
|
|
lock_kernel();
|
|
filename = getname(file);
|
|
error = PTR_ERR(filename);
|
|
if (IS_ERR(filename)) goto out;
|
|
error = execve1(filename, argv, env);
|
|
putname(filename);
|
|
out:
|
|
unlock_kernel();
|
|
return error;
|
|
}
|