38 lines
915 B
C
38 lines
915 B
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
/*
|
||
|
|
* arch/arm/include/asm/flat.h -- uClinux flat-format executables
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __ARM_FLAT_H__
|
||
|
|
#define __ARM_FLAT_H__
|
||
|
|
|
||
|
|
#include <linux/uaccess.h>
|
||
|
|
|
||
|
|
#define flat_argvp_envp_on_stack() 1
|
||
|
|
#define flat_old_ram_flag(flags) (flags)
|
||
|
|
#define flat_reloc_valid(reloc, size) ((reloc) <= (size))
|
||
|
|
|
||
|
|
static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
|
||
|
|
u32 *addr, u32 *persistent)
|
||
|
|
{
|
||
|
|
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
|
||
|
|
return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
|
||
|
|
#else
|
||
|
|
return get_user(*addr, rp);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
|
||
|
|
{
|
||
|
|
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
|
||
|
|
return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
|
||
|
|
#else
|
||
|
|
return put_user(addr, rp);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#define flat_get_relocate_addr(rel) (rel)
|
||
|
|
#define flat_set_persistent(relval, p) 0
|
||
|
|
|
||
|
|
#endif /* __ARM_FLAT_H__ */
|