tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * include/asm-arm/unified.h - Unified Assembler Syntax helper macros
3 *
4 * Copyright (C) 2008 ARM Limited
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#ifndef __ASM_UNIFIED_H
21#define __ASM_UNIFIED_H
22
23#if defined(__ASSEMBLY__)
24 .syntax unified
25#else
26__asm__(".syntax unified");
27#endif
28
29#ifdef CONFIG_CPU_V7M
30#define AR_CLASS(x...)
31#define M_CLASS(x...) x
32#else
33#define AR_CLASS(x...) x
34#define M_CLASS(x...)
35#endif
36
37#ifdef CONFIG_THUMB2_KERNEL
38
39#if __GNUC__ < 4
40#error Thumb-2 kernel requires gcc >= 4
41#endif
42
43/* The CPSR bit describing the instruction set (Thumb) */
44#define PSR_ISETSTATE PSR_T_BIT
45
46#define ARM(x...)
47#define THUMB(x...) x
48#ifdef __ASSEMBLY__
49#define W(instr) instr.w
50#else
51#define WASM(instr) #instr ".w"
52#endif
53
54#else /* !CONFIG_THUMB2_KERNEL */
55
56/* The CPSR bit describing the instruction set (ARM) */
57#define PSR_ISETSTATE 0
58
59#define ARM(x...) x
60#define THUMB(x...)
61#ifdef __ASSEMBLY__
62#define W(instr) instr
63#else
64#define WASM(instr) #instr
65#endif
66
67#endif /* CONFIG_THUMB2_KERNEL */
68
69#endif /* !__ASM_UNIFIED_H */