1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * flat.h -- uClinux flat-format executables
 4 */
 5
 6#ifndef __M68KNOMMU_FLAT_H__
 7#define __M68KNOMMU_FLAT_H__
 8
 9#include <asm-generic/flat.h>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10
11#define FLAT_PLAT_INIT(regs) \
12	do { \
13		if (current->mm) \
14			(regs)->d5 = current->mm->start_data; \
15	} while (0)
16
17#endif /* __M68KNOMMU_FLAT_H__ */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * flat.h -- uClinux flat-format executables
 4 */
 5
 6#ifndef __M68KNOMMU_FLAT_H__
 7#define __M68KNOMMU_FLAT_H__
 8
 9#include <linux/uaccess.h>
10
11#define	flat_argvp_envp_on_stack()		1
12#define	flat_old_ram_flag(flags)		(flags)
13#define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
14static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
15					u32 *addr, u32 *persistent)
16{
17#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
18	return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
19#else
20	return get_user(*addr, rp);
21#endif
22}
23
24static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
25{
26#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
27	return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
28#else
29	return put_user(addr, rp);
30#endif
31}
32#define	flat_get_relocate_addr(rel)		(rel)
33
34static inline int flat_set_persistent(u32 relval, u32 *persistent)
35{
36	return 0;
37}
38
39#define FLAT_PLAT_INIT(regs) \
40	do { \
41		if (current->mm) \
42			(regs)->d5 = current->mm->start_data; \
43	} while (0)
44
45#endif /* __M68KNOMMU_FLAT_H__ */