| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* |
| 3 | * include/asm-arm/unified.h - Unified Assembler Syntax helper macros |
| 4 | * |
| 5 | * Copyright (C) 2008 ARM Limited |
| 6 | */ |
| 7 | |
| 8 | #ifndef __ASM_UNIFIED_H |
| 9 | #define __ASM_UNIFIED_H |
| 10 | |
| 11 | #if defined(__ASSEMBLY__) |
| 12 | .syntax unified |
| 13 | #else |
| 14 | __asm__(".syntax unified"); |
| 15 | #endif |
| 16 | |
| 17 | #ifdef CONFIG_CPU_V7M |
| 18 | #define AR_CLASS(x...) |
| 19 | #define M_CLASS(x...) x |
| 20 | #else |
| 21 | #define AR_CLASS(x...) x |
| 22 | #define M_CLASS(x...) |
| 23 | #endif |
| 24 | |
| 25 | #ifdef CONFIG_THUMB2_KERNEL |
| 26 | |
| 27 | #if __GNUC__ < 4 |
| 28 | #error Thumb-2 kernel requires gcc >= 4 |
| 29 | #endif |
| 30 | |
| 31 | /* The CPSR bit describing the instruction set (Thumb) */ |
| 32 | #define PSR_ISETSTATE PSR_T_BIT |
| 33 | |
| 34 | #define ARM(x...) |
| 35 | #define THUMB(x...) x |
| 36 | #ifdef __ASSEMBLY__ |
| 37 | #define W(instr) instr.w |
| 38 | #else |
| 39 | #define WASM(instr) #instr ".w" |
| 40 | #endif |
| 41 | |
| 42 | #else /* !CONFIG_THUMB2_KERNEL */ |
| 43 | |
| 44 | /* The CPSR bit describing the instruction set (ARM) */ |
| 45 | #define PSR_ISETSTATE 0 |
| 46 | |
| 47 | #define ARM(x...) x |
| 48 | #define THUMB(x...) |
| 49 | #ifdef __ASSEMBLY__ |
| 50 | #define W(instr) instr |
| 51 | #else |
| 52 | #define WASM(instr) #instr |
| 53 | #endif |
| 54 | |
| 55 | #endif /* CONFIG_THUMB2_KERNEL */ |
| 56 | |
| 57 | #endif /* !__ASM_UNIFIED_H */ |