diff options
| -rw-r--r-- | arch/arm/include/asm/assembler.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/unified.h | 129 | ||||
| -rw-r--r-- | arch/arm/lib/Makefile | 9 | ||||
| -rw-r--r-- | arch/arm/lib/memcpy.S | 6 |
4 files changed, 138 insertions, 7 deletions
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index 11b80fb..ae1e42f 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -15,6 +15,7 @@ */ #include <config.h> +#include <asm/unified.h> /* * Endian independent macros for shifting bytes within registers. diff --git a/arch/arm/include/asm/unified.h b/arch/arm/include/asm/unified.h new file mode 100644 index 0000000..1b26002 --- /dev/null +++ b/arch/arm/include/asm/unified.h @@ -0,0 +1,129 @@ +/* + * include/asm-arm/unified.h - Unified Assembler Syntax helper macros + * + * Copyright (C) 2008 ARM Limited + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef __ASM_UNIFIED_H +#define __ASM_UNIFIED_H + +#if defined(__ASSEMBLY__) && defined(CONFIG_ARM_ASM_UNIFIED) + .syntax unified +#endif + +#ifdef CONFIG_CPU_V7M +#define AR_CLASS(x...) +#define M_CLASS(x...) x +#else +#define AR_CLASS(x...) x +#define M_CLASS(x...) +#endif + +#ifdef CONFIG_THUMB2_KERNEL + +#if __GNUC__ < 4 +#error Thumb-2 kernel requires gcc >= 4 +#endif + +/* The CPSR bit describing the instruction set (Thumb) */ +#define PSR_ISETSTATE PSR_T_BIT + +#define ARM(x...) +#define THUMB(x...) x +#ifdef __ASSEMBLY__ +#define W(instr) instr.w +#else +#define WASM(instr) #instr ".w" +#endif + +#else /* !CONFIG_THUMB2_KERNEL */ + +/* The CPSR bit describing the instruction set (ARM) */ +#define PSR_ISETSTATE 0 + +#define ARM(x...) x +#define THUMB(x...) +#ifdef __ASSEMBLY__ +#define W(instr) instr +#else +#define WASM(instr) #instr +#endif + +#endif /* CONFIG_THUMB2_KERNEL */ + +#ifndef CONFIG_ARM_ASM_UNIFIED + +/* + * If the unified assembly syntax isn't used (in ARM mode), these + * macros expand to an empty string + */ +#ifdef __ASSEMBLY__ + .macro it, cond + .endm + .macro itt, cond + .endm + .macro ite, cond + .endm + .macro ittt, cond + .endm + .macro itte, cond + .endm + .macro itet, cond + .endm + .macro itee, cond + .endm + .macro itttt, cond + .endm + .macro ittte, cond + .endm + .macro ittet, cond + .endm + .macro ittee, cond + .endm + .macro itett, cond + .endm + .macro itete, cond + .endm + .macro iteet, cond + .endm + .macro iteee, cond + .endm +#else /* !__ASSEMBLY__ */ +__asm__( +" .macro it, cond\n" +" .endm\n" +" .macro itt, cond\n" +" .endm\n" +" .macro ite, cond\n" +" .endm\n" +" .macro ittt, cond\n" +" .endm\n" +" .macro itte, cond\n" +" .endm\n" +" .macro itet, cond\n" +" .endm\n" +" .macro itee, cond\n" +" .endm\n" +" .macro itttt, cond\n" +" .endm\n" +" .macro ittte, cond\n" +" .endm\n" +" .macro ittet, cond\n" +" .endm\n" +" .macro ittee, cond\n" +" .endm\n" +" .macro itett, cond\n" +" .endm\n" +" .macro itete, cond\n" +" .endm\n" +" .macro iteet, cond\n" +" .endm\n" +" .macro iteee, cond\n" +" .endm\n"); +#endif /* __ASSEMBLY__ */ + +#endif /* CONFIG_ARM_ASM_UNIFIED */ + +#endif /* !__ASM_UNIFIED_H */ diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile index b535dbe..49adce3 100644 --- a/arch/arm/lib/Makefile +++ b/arch/arm/lib/Makefile @@ -62,9 +62,17 @@ ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS))) extra-y += eabi_compat.o endif +asflags-y += -DCONFIG_ARM_ASM_UNIFIED +ifeq ($(CONFIG_SPL_BUILD)$(CONFIG_TEGRA),yy) +asflags-y += -D__LINUX_ARM_ARCH__=4 +else +asflags-y += -D__LINUX_ARM_ARCH__=$(CONFIG_SYS_ARM_ARCH) +endif + # some files can only build in ARM or THUMB2, not THUMB1 ifdef CONFIG_SYS_THUMB_BUILD +asflags-$(CONFIG_HAS_THUMB2) += -DCONFIG_THUMB2_KERNEL ifndef CONFIG_HAS_THUMB2 # for C files, just apend -marm, which will override previous -mthumb* @@ -82,6 +90,5 @@ AFLAGS_REMOVE_memset.o := -mthumb -mthumb-interwork AFLAGS_REMOVE_memcpy.o := -mthumb -mthumb-interwork AFLAGS_memset.o := -DMEMSET_NO_THUMB_BUILD AFLAGS_memcpy.o := -DMEMCPY_NO_THUMB_BUILD - endif endif diff --git a/arch/arm/lib/memcpy.S b/arch/arm/lib/memcpy.S index 7d9fc0f..00602e9 100644 --- a/arch/arm/lib/memcpy.S +++ b/arch/arm/lib/memcpy.S @@ -13,12 +13,6 @@ #include <linux/linkage.h> #include <asm/assembler.h> -#if defined(CONFIG_SYS_THUMB_BUILD) && !defined(MEMCPY_NO_THUMB_BUILD) -#define W(instr) instr.w -#else -#define W(instr) instr -#endif - #define LDR1W_SHIFT 0 #define STR1W_SHIFT 0 |