/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright ( C ) 2015 Imagination Technologies
* Author : Alex Smith < alex . smith @ imgtec . com >
*/
#ifndef __ASM_VDSO_H
#define __ASM_VDSO_H
#include <linux/mm_types.h>
#include <vdso/datapage.h>
#include <asm /barrier.h>
/**
* struct mips_vdso_image - Details of a VDSO image .
* @ data : Pointer to VDSO image data ( page - aligned ) .
* @ size : Size of the VDSO image data ( page - aligned ) .
* @ off_sigreturn : Offset of the sigreturn ( ) trampoline .
* @ off_rt_sigreturn : Offset of the rt_sigreturn ( ) trampoline .
* @ mapping : Special mapping structure .
*
* This structure contains details of a VDSO image , including the image data
* and offsets of certain symbols required by the kernel . It is generated as
* part of the VDSO build process , aside from the mapping page array , which is
* populated at runtime .
*/
struct mips_vdso_image {
void *data;
unsigned long size;
unsigned long off_sigreturn;
unsigned long off_rt_sigreturn;
struct vm_special_mapping mapping;
};
/*
* The following structures are auto - generated as part of the build for each
* ABI by genvdso , see arch / mips / vdso / Makefile .
*/
extern struct mips_vdso_image vdso_image;
#ifdef CONFIG_MIPS32_O32
extern struct mips_vdso_image vdso_image_o32;
#endif
#ifdef CONFIG_MIPS32_N32
extern struct mips_vdso_image vdso_image_n32;
#endif
#endif /* __ASM_VDSO_H */
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(vorverarbeitet am 2026-09-28)
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