From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- arch/h8300/include/asm/flat.h | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 arch/h8300/include/asm/flat.h (limited to 'arch/h8300/include/asm/flat.h') diff --git a/arch/h8300/include/asm/flat.h b/arch/h8300/include/asm/flat.h new file mode 100644 index 000000000..78070f924 --- /dev/null +++ b/arch/h8300/include/asm/flat.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * arch/h8300/asm/include/flat.h -- uClinux flat-format executables + */ + +#ifndef __H8300_FLAT_H__ +#define __H8300_FLAT_H__ + +#include + +/* + * on the H8 a couple of the relocations have an instruction in the + * top byte. As there can only be 24bits of address space, we just + * always preserve that 8bits at the top, when it isn't an instruction + * is is 0 (davidm@snapgear.com) + */ + +#define flat_get_relocate_addr(rel) (rel & ~0x00000001) +static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags, + u32 *addr) +{ + u32 val = get_unaligned((__force u32 *)rp); + if (!(flags & FLAT_FLAG_GOTPIC)) + val &= 0x00ffffff; + *addr = val; + return 0; +} + +static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel) +{ + u32 *p = (__force u32 *)rp; + put_unaligned((addr & 0x00ffffff) | (*(char *)p << 24), p); + return 0; +} + +#endif /* __H8300_FLAT_H__ */ -- cgit v1.2.3