arch/mips/include/asm/sim.h

Source file repositories/reference/linux-study-clean/arch/mips/include/asm/sim.h

File Facts

System
Linux kernel
Corpus path
arch/mips/include/asm/sim.h
Extension
.h
Size
2070 bytes
Lines
71
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _ASM_SIM_H
#define _ASM_SIM_H


#include <asm/asm-offsets.h>

#define __str2(x) #x
#define __str(x) __str2(x)

#ifdef CONFIG_32BIT

#define save_static_function(symbol)					\
__asm__(								\
	".text\n\t"							\
	".globl\t__" #symbol "\n\t"					\
	".align\t2\n\t"							\
	".type\t__" #symbol ", @function\n\t"				\
	".ent\t__" #symbol ", 0\n__"					\
	#symbol":\n\t"							\
	".frame\t$29, 0, $31\n\t"					\
	"sw\t$16,"__str(PT_R16)"($29)\t\t\t# save_static_function\n\t"	\
	"sw\t$17,"__str(PT_R17)"($29)\n\t"				\
	"sw\t$18,"__str(PT_R18)"($29)\n\t"				\
	"sw\t$19,"__str(PT_R19)"($29)\n\t"				\
	"sw\t$20,"__str(PT_R20)"($29)\n\t"				\
	"sw\t$21,"__str(PT_R21)"($29)\n\t"				\
	"sw\t$22,"__str(PT_R22)"($29)\n\t"				\
	"sw\t$23,"__str(PT_R23)"($29)\n\t"				\
	"sw\t$30,"__str(PT_R30)"($29)\n\t"				\
	"j\t" #symbol "\n\t"						\
	".end\t__" #symbol "\n\t"					\
	".size\t__" #symbol",. - __" #symbol)

#endif /* CONFIG_32BIT */

#ifdef CONFIG_64BIT

#define save_static_function(symbol)					\
__asm__(								\
	".text\n\t"							\
	".globl\t__" #symbol "\n\t"					\
	".align\t2\n\t"							\
	".type\t__" #symbol ", @function\n\t"				\
	".ent\t__" #symbol ", 0\n__"					\
	#symbol":\n\t"							\
	".frame\t$29, 0, $31\n\t"					\
	"sd\t$16,"__str(PT_R16)"($29)\t\t\t# save_static_function\n\t"	\
	"sd\t$17,"__str(PT_R17)"($29)\n\t"				\
	"sd\t$18,"__str(PT_R18)"($29)\n\t"				\
	"sd\t$19,"__str(PT_R19)"($29)\n\t"				\
	"sd\t$20,"__str(PT_R20)"($29)\n\t"				\
	"sd\t$21,"__str(PT_R21)"($29)\n\t"				\
	"sd\t$22,"__str(PT_R22)"($29)\n\t"				\
	"sd\t$23,"__str(PT_R23)"($29)\n\t"				\
	"sd\t$30,"__str(PT_R30)"($29)\n\t"				\
	"j\t" #symbol "\n\t"						\
	".end\t__" #symbol "\n\t"					\
	".size\t__" #symbol",. - __" #symbol)

#endif /* CONFIG_64BIT */

#endif /* _ASM_SIM_H */

Annotation

Implementation Notes