diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/m68k/include/asm/flat.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/flat.h b/arch/m68k/include/asm/flat.h new file mode 100644 index 000000000..4f1d1e373 --- /dev/null +++ b/arch/m68k/include/asm/flat.h @@ -0,0 +1,45 @@ +/* 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__ */ |