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/* SPDX-License-Identifier: GPL-2.0 */
/*
* flat.h -- uClinux flat-format executables
*/
#ifndef __M68KNOMMU_FLAT_H__
#define __M68KNOMMU_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)
{
#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
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)
{
#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
#else
return put_user(addr, rp);
#endif
}
#define flat_get_relocate_addr(rel) (rel)
static inline int flat_set_persistent(u32 relval, u32 *persistent)
{
return 0;
}
#define FLAT_PLAT_INIT(regs) \
do { \
if (current->mm) \
(regs)->d5 = current->mm->start_data; \
} while (0)
#endif /* __M68KNOMMU_FLAT_H__ */
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