diff options
Diffstat (limited to 'arch/microblaze/include/asm/flat.h')
| -rw-r--r-- | arch/microblaze/include/asm/flat.h | 48 |
1 files changed, 20 insertions, 28 deletions
diff --git a/arch/microblaze/include/asm/flat.h b/arch/microblaze/include/asm/flat.h index 6847c1512c7b..edff4306fa70 100644 --- a/arch/microblaze/include/asm/flat.h +++ b/arch/microblaze/include/asm/flat.h @@ -1,22 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * uClinux flat-format executables * * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au> - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. */ #ifndef _ASM_MICROBLAZE_FLAT_H #define _ASM_MICROBLAZE_FLAT_H -#include <asm/unaligned.h> - -#define flat_argvp_envp_on_stack() 0 -#define flat_old_ram_flag(flags) (flags) -#define flat_reloc_valid(reloc, size) ((reloc) <= (size)) -#define flat_set_persistent(relval, p) 0 +#include <linux/unaligned.h> /* * Microblaze works a little differently from other arches, because @@ -32,29 +24,27 @@ * reference */ -static inline unsigned long -flat_get_addr_from_rp(unsigned long *rp, unsigned long relval, - unsigned long flags, unsigned long *persistent) +static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags, + u32 *addr) { - unsigned long addr; - (void)flags; + u32 *p = (__force u32 *)rp; /* Is it a split 64/32 reference? */ if (relval & 0x80000000) { /* Grab the two halves of the reference */ - unsigned long val_hi, val_lo; + u32 val_hi, val_lo; - val_hi = get_unaligned(rp); - val_lo = get_unaligned(rp+1); + val_hi = get_unaligned(p); + val_lo = get_unaligned(p+1); /* Crack the address out */ - addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff); + *addr = ((val_hi & 0xffff) << 16) + (val_lo & 0xffff); } else { /* Get the address straight out */ - addr = get_unaligned(rp); + *addr = get_unaligned(p); } - return addr; + return 0; } /* @@ -62,26 +52,28 @@ flat_get_addr_from_rp(unsigned long *rp, unsigned long relval, * unaligned. */ -static inline void -flat_put_addr_at_rp(unsigned long *rp, unsigned long addr, unsigned long relval) +static inline int +flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 relval) { + u32 *p = (__force u32 *)rp; /* Is this a split 64/32 reloc? */ if (relval & 0x80000000) { /* Get the two "halves" */ - unsigned long val_hi = get_unaligned(rp); - unsigned long val_lo = get_unaligned(rp + 1); + unsigned long val_hi = get_unaligned(p); + unsigned long val_lo = get_unaligned(p + 1); /* insert the address */ val_hi = (val_hi & 0xffff0000) | addr >> 16; val_lo = (val_lo & 0xffff0000) | (addr & 0xffff); /* store the two halves back into memory */ - put_unaligned(val_hi, rp); - put_unaligned(val_lo, rp+1); + put_unaligned(val_hi, p); + put_unaligned(val_lo, p+1); } else { /* Put it straight in, no messing around */ - put_unaligned(addr, rp); + put_unaligned(addr, p); } + return 0; } #define flat_get_relocate_addr(rel) (rel & 0x7fffffff) |