Files
linux/arch/x86/include/asm/vdso.h
Thomas Weißschuh 9729dceab1 x86/vdso/vdso2c: Remove page handling
The values are not used anymore.
Also the sanity checks performed by vdso2c can never trigger as they
only validate invariants already enforced by the linker script.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250204-vdso-store-rng-v3-16-13a4669dfc8c@linutronix.de
2025-02-21 09:54:03 +01:00

52 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_VDSO_H
#define _ASM_X86_VDSO_H
#include <asm/page_types.h>
#include <linux/linkage.h>
#include <linux/init.h>
#ifndef __ASSEMBLER__
#include <linux/mm_types.h>
struct vdso_image {
void *data;
unsigned long size; /* Always a multiple of PAGE_SIZE */
unsigned long alt, alt_len;
unsigned long extable_base, extable_len;
const void *extable;
long sym_VDSO32_NOTE_MASK;
long sym___kernel_sigreturn;
long sym___kernel_rt_sigreturn;
long sym___kernel_vsyscall;
long sym_int80_landing_pad;
long sym_vdso32_sigreturn_landing_pad;
long sym_vdso32_rt_sigreturn_landing_pad;
};
#ifdef CONFIG_X86_64
extern const struct vdso_image vdso_image_64;
#endif
#ifdef CONFIG_X86_X32_ABI
extern const struct vdso_image vdso_image_x32;
#endif
#if defined CONFIG_X86_32 || defined CONFIG_COMPAT
extern const struct vdso_image vdso_image_32;
#endif
extern int __init init_vdso_image(const struct vdso_image *image);
extern int map_vdso_once(const struct vdso_image *image, unsigned long addr);
extern bool fixup_vdso_exception(struct pt_regs *regs, int trapnr,
unsigned long error_code,
unsigned long fault_addr);
#endif /* __ASSEMBLER__ */
#endif /* _ASM_X86_VDSO_H */