arch/powerpc/include/asm/vdso.h

Source file repositories/reference/linux-study-clean/arch/powerpc/include/asm/vdso.h

File Facts

System
Linux kernel
Corpus path
arch/powerpc/include/asm/vdso.h
Extension
.h
Size
1049 bytes
Lines
55
Domain
Architecture Layer
Bucket
arch/powerpc
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_POWERPC_VDSO_H
#define _ASM_POWERPC_VDSO_H

#define VDSO_VERSION_STRING	LINUX_2.6.15
#define __VDSO_PAGES		4

#ifndef __ASSEMBLER__

#ifdef CONFIG_PPC64
#include <generated/vdso64-offsets.h>
#endif

#ifdef CONFIG_VDSO32
#include <generated/vdso32-offsets.h>
#endif

#define VDSO64_SYMBOL(base, name) ((unsigned long)(base) + (vdso64_offset_##name))

#define VDSO32_SYMBOL(base, name) ((unsigned long)(base) + (vdso32_offset_##name))

int vdso_getcpu_init(void);

#else /* __ASSEMBLER__ */

#ifdef __VDSO64__
#define V_FUNCTION_BEGIN(name)		\
	.globl name;			\
	.type name,@function; 		\
	name:				\

#define V_FUNCTION_END(name)		\
	.size name,.-name;

#define V_LOCAL_FUNC(name) (name)
#endif /* __VDSO64__ */

#ifdef __VDSO32__

#define V_FUNCTION_BEGIN(name)		\
	.globl name;			\
	.type name,@function; 		\
	name:				\

#define V_FUNCTION_END(name)		\
	.size name,.-name;

#define V_LOCAL_FUNC(name) (name)

#endif /* __VDSO32__ */

#endif /* __ASSEMBLER__ */

#endif /* _ASM_POWERPC_VDSO_H */

Annotation

Implementation Notes